imgui_draw.cpp
1 // dear imgui, v1.89.4 2 // (drawing and font code) 3 4 /* 5 6 Index of this file: 7 8 // [SECTION] STB libraries implementation 9 // [SECTION] Style functions 10 // [SECTION] ImDrawList 11 // [SECTION] ImDrawListSplitter 12 // [SECTION] ImDrawData 13 // [SECTION] Helpers ShadeVertsXXX functions 14 // [SECTION] ImFontConfig 15 // [SECTION] ImFontAtlas 16 // [SECTION] ImFontAtlas glyph ranges helpers 17 // [SECTION] ImFontGlyphRangesBuilder 18 // [SECTION] ImFont 19 // [SECTION] ImGui Internal Render Helpers 20 // [SECTION] Decompression code 21 // [SECTION] Default font data (ProggyClean.ttf) 22 23 */ 24 25 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) 26 #define _CRT_SECURE_NO_WARNINGS 27 #endif 28 29 #ifndef IMGUI_DEFINE_MATH_OPERATORS 30 #define IMGUI_DEFINE_MATH_OPERATORS 31 #endif 32 33 #include "imgui.h" 34 #ifndef IMGUI_DISABLE 35 #include "imgui_internal.h" 36 #ifdef IMGUI_ENABLE_FREETYPE 37 #include "misc/freetype/imgui_freetype.h" 38 #endif 39 40 #include <stdio.h> // vsnprintf, sscanf, printf 41 42 // Visual Studio warnings 43 #ifdef _MSC_VER 44 #pragma warning (disable: 4127) // condition expression is constant 45 #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff) 46 #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen 47 #pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2). 48 #pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer) 49 #endif 50 51 // Clang/GCC warnings with -Weverything 52 #if defined(__clang__) 53 #if __has_warning("-Wunknown-warning-option") 54 #pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great! 55 #endif 56 #pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx' 57 #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse. 58 #pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok. 59 #pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is. 60 #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness 61 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0 62 #pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here 63 #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier 64 #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double. 65 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision 66 #elif defined(__GNUC__) 67 #pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind 68 #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used 69 #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function 70 #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value 71 #pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer 72 #pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead 73 #endif 74 75 //------------------------------------------------------------------------- 76 // [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack) 77 //------------------------------------------------------------------------- 78 79 // Compile time options: 80 //#define IMGUI_STB_NAMESPACE ImStb 81 //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h" 82 //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h" 83 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION 84 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION 85 86 #ifdef IMGUI_STB_NAMESPACE 87 namespace IMGUI_STB_NAMESPACE 88 { 89 #endif 90 91 #ifdef _MSC_VER 92 #pragma warning (push) 93 #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration 94 #pragma warning (disable: 6011) // (stb_rectpack) Dereferencing NULL pointer 'cur->next'. 95 #pragma warning (disable: 6385) // (stb_truetype) Reading invalid data from 'buffer': the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read. 96 #pragma warning (disable: 28182) // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did. 97 #endif 98 99 #if defined(__clang__) 100 #pragma clang diagnostic push 101 #pragma clang diagnostic ignored "-Wunused-function" 102 #pragma clang diagnostic ignored "-Wmissing-prototypes" 103 #pragma clang diagnostic ignored "-Wimplicit-fallthrough" 104 #pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier 105 #endif 106 107 #if defined(__GNUC__) 108 #pragma GCC diagnostic push 109 #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits] 110 #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers 111 #endif 112 113 #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds) 114 #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in another compilation unit 115 #define STBRP_STATIC 116 #define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0) 117 #define STBRP_SORT ImQsort 118 #define STB_RECT_PACK_IMPLEMENTATION 119 #endif 120 #ifdef IMGUI_STB_RECT_PACK_FILENAME 121 #include IMGUI_STB_RECT_PACK_FILENAME 122 #else 123 #include "imstb_rectpack.h" 124 #endif 125 #endif 126 127 #ifdef IMGUI_ENABLE_STB_TRUETYPE 128 #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds) 129 #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in another compilation unit 130 #define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x)) 131 #define STBTT_free(x,u) ((void)(u), IM_FREE(x)) 132 #define STBTT_assert(x) do { IM_ASSERT(x); } while(0) 133 #define STBTT_fmod(x,y) ImFmod(x,y) 134 #define STBTT_sqrt(x) ImSqrt(x) 135 #define STBTT_pow(x,y) ImPow(x,y) 136 #define STBTT_fabs(x) ImFabs(x) 137 #define STBTT_ifloor(x) ((int)ImFloorSigned(x)) 138 #define STBTT_iceil(x) ((int)ImCeil(x)) 139 #define STBTT_STATIC 140 #define STB_TRUETYPE_IMPLEMENTATION 141 #else 142 #define STBTT_DEF extern 143 #endif 144 #ifdef IMGUI_STB_TRUETYPE_FILENAME 145 #include IMGUI_STB_TRUETYPE_FILENAME 146 #else 147 #include "imstb_truetype.h" 148 #endif 149 #endif 150 #endif // IMGUI_ENABLE_STB_TRUETYPE 151 152 #if defined(__GNUC__) 153 #pragma GCC diagnostic pop 154 #endif 155 156 #if defined(__clang__) 157 #pragma clang diagnostic pop 158 #endif 159 160 #if defined(_MSC_VER) 161 #pragma warning (pop) 162 #endif 163 164 #ifdef IMGUI_STB_NAMESPACE 165 } // namespace ImStb 166 using namespace IMGUI_STB_NAMESPACE; 167 #endif 168 169 //----------------------------------------------------------------------------- 170 // [SECTION] Style functions 171 //----------------------------------------------------------------------------- 172 173 void ImGui::StyleColorsDark(ImGuiStyle* dst) 174 { 175 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 176 ImVec4* colors = style->Colors; 177 178 colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 179 colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f); 180 colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f); 181 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 182 colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f); 183 colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f); 184 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 185 colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f); 186 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 187 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 188 colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f); 189 colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f); 190 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f); 191 colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f); 192 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f); 193 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f); 194 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f); 195 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f); 196 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 197 colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f); 198 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 199 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 200 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 201 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f); 202 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f); 203 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f); 204 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 205 colors[ImGuiCol_Separator] = colors[ImGuiCol_Border]; 206 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f); 207 colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f); 208 colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f); 209 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 210 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 211 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f); 212 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 213 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 214 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 215 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f); 216 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_HeaderActive] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f); 217 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f); 218 colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f); 219 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f); 220 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 221 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f); 222 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f); 223 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here 224 colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here 225 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 226 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f); 227 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f); 228 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f); 229 colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 230 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f); 231 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f); 232 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f); 233 } 234 235 void ImGui::StyleColorsClassic(ImGuiStyle* dst) 236 { 237 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 238 ImVec4* colors = style->Colors; 239 240 colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f); 241 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f); 242 colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f); 243 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 244 colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f); 245 colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f); 246 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 247 colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f); 248 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f); 249 colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f); 250 colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f); 251 colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f); 252 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f); 253 colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f); 254 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f); 255 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f); 256 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f); 257 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f); 258 colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f); 259 colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f); 260 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f); 261 colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f); 262 colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f); 263 colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f); 264 colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f); 265 colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f); 266 colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f); 267 colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f); 268 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f); 269 colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f); 270 colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f); 271 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f); 272 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f); 273 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f); 274 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 275 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 276 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 277 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f); 278 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f); 279 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f); 280 colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 281 colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 282 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 283 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f); 284 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f); 285 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here 286 colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here 287 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 288 colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f); 289 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f); 290 colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f); 291 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered]; 292 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f); 293 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f); 294 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f); 295 } 296 297 // Those light colors are better suited with a thicker font than the default one + FrameBorder 298 void ImGui::StyleColorsLight(ImGuiStyle* dst) 299 { 300 ImGuiStyle* style = dst ? dst : &ImGui::GetStyle(); 301 ImVec4* colors = style->Colors; 302 303 colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f); 304 colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f); 305 colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f); 306 colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 307 colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f); 308 colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f); 309 colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 310 colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f); 311 colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 312 colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 313 colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f); 314 colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f); 315 colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f); 316 colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f); 317 colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f); 318 colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f); 319 colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f); 320 colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f); 321 colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 322 colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f); 323 colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f); 324 colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f); 325 colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 326 colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f); 327 colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f); 328 colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f); 329 colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f); 330 colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f); 331 colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f); 332 colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f); 333 colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f); 334 colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f); 335 colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 336 colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f); 337 colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered]; 338 colors[ImGuiCol_TabActive] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f); 339 colors[ImGuiCol_TabUnfocused] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f); 340 colors[ImGuiCol_TabUnfocusedActive] = ImLerp(colors[ImGuiCol_TabActive], colors[ImGuiCol_TitleBg], 0.40f); 341 colors[ImGuiCol_DockingPreview] = colors[ImGuiCol_Header] * ImVec4(1.0f, 1.0f, 1.0f, 0.7f); 342 colors[ImGuiCol_DockingEmptyBg] = ImVec4(0.20f, 0.20f, 0.20f, 1.00f); 343 colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f); 344 colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f); 345 colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f); 346 colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f); 347 colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f); 348 colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here 349 colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here 350 colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f); 351 colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f); 352 colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f); 353 colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f); 354 colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered]; 355 colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f); 356 colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f); 357 colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f); 358 } 359 360 //----------------------------------------------------------------------------- 361 // [SECTION] ImDrawList 362 //----------------------------------------------------------------------------- 363 364 ImDrawListSharedData::ImDrawListSharedData() 365 { 366 memset(this, 0, sizeof(*this)); 367 for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++) 368 { 369 const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx); 370 ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a)); 371 } 372 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError); 373 } 374 375 void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error) 376 { 377 if (CircleSegmentMaxError == max_error) 378 return; 379 380 IM_ASSERT(max_error > 0.0f); 381 CircleSegmentMaxError = max_error; 382 for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++) 383 { 384 const float radius = (float)i; 385 CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX); 386 } 387 ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError); 388 } 389 390 // Initialize before use in a new frame. We always have a command ready in the buffer. 391 void ImDrawList::_ResetForNewFrame() 392 { 393 // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory. 394 IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0); 395 IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4)); 396 IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID)); 397 if (_Splitter._Count > 1) 398 _Splitter.Merge(this); 399 400 CmdBuffer.resize(0); 401 IdxBuffer.resize(0); 402 VtxBuffer.resize(0); 403 Flags = _Data->InitialFlags; 404 memset(&_CmdHeader, 0, sizeof(_CmdHeader)); 405 _VtxCurrentIdx = 0; 406 _VtxWritePtr = NULL; 407 _IdxWritePtr = NULL; 408 _ClipRectStack.resize(0); 409 _TextureIdStack.resize(0); 410 _Path.resize(0); 411 _Splitter.Clear(); 412 CmdBuffer.push_back(ImDrawCmd()); 413 _FringeScale = 1.0f; 414 } 415 416 void ImDrawList::_ClearFreeMemory() 417 { 418 CmdBuffer.clear(); 419 IdxBuffer.clear(); 420 VtxBuffer.clear(); 421 Flags = ImDrawListFlags_None; 422 _VtxCurrentIdx = 0; 423 _VtxWritePtr = NULL; 424 _IdxWritePtr = NULL; 425 _ClipRectStack.clear(); 426 _TextureIdStack.clear(); 427 _Path.clear(); 428 _Splitter.ClearFreeMemory(); 429 } 430 431 ImDrawList* ImDrawList::CloneOutput() const 432 { 433 ImDrawList* dst = IM_NEW(ImDrawList(_Data)); 434 dst->CmdBuffer = CmdBuffer; 435 dst->IdxBuffer = IdxBuffer; 436 dst->VtxBuffer = VtxBuffer; 437 dst->Flags = Flags; 438 return dst; 439 } 440 441 void ImDrawList::AddDrawCmd() 442 { 443 ImDrawCmd draw_cmd; 444 draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy() 445 draw_cmd.TextureId = _CmdHeader.TextureId; 446 draw_cmd.VtxOffset = _CmdHeader.VtxOffset; 447 draw_cmd.IdxOffset = IdxBuffer.Size; 448 449 IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w); 450 CmdBuffer.push_back(draw_cmd); 451 } 452 453 // Pop trailing draw command (used before merging or presenting to user) 454 // Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL 455 void ImDrawList::_PopUnusedDrawCmd() 456 { 457 while (CmdBuffer.Size > 0) 458 { 459 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 460 if (curr_cmd->ElemCount != 0 || curr_cmd->UserCallback != NULL) 461 return;// break; 462 CmdBuffer.pop_back(); 463 } 464 } 465 466 void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data) 467 { 468 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 469 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 470 IM_ASSERT(curr_cmd->UserCallback == NULL); 471 if (curr_cmd->ElemCount != 0) 472 { 473 AddDrawCmd(); 474 curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 475 } 476 curr_cmd->UserCallback = callback; 477 curr_cmd->UserCallbackData = callback_data; 478 479 AddDrawCmd(); // Force a new command after us (see comment below) 480 } 481 482 // Compare ClipRect, TextureId and VtxOffset with a single memcmp() 483 #define ImDrawCmd_HeaderSize (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int)) 484 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset 485 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset 486 #define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1) (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset) 487 488 // Try to merge two last draw commands 489 void ImDrawList::_TryMergeDrawCmds() 490 { 491 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 492 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 493 ImDrawCmd* prev_cmd = curr_cmd - 1; 494 if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL) 495 { 496 prev_cmd->ElemCount += curr_cmd->ElemCount; 497 CmdBuffer.pop_back(); 498 } 499 } 500 501 // Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack. 502 // The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only. 503 void ImDrawList::_OnChangedClipRect() 504 { 505 // If current command is used with different settings we need to add a new command 506 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 507 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 508 if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0) 509 { 510 AddDrawCmd(); 511 return; 512 } 513 IM_ASSERT(curr_cmd->UserCallback == NULL); 514 515 // Try to merge with previous command if it matches, else use current command 516 ImDrawCmd* prev_cmd = curr_cmd - 1; 517 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL) 518 { 519 CmdBuffer.pop_back(); 520 return; 521 } 522 523 curr_cmd->ClipRect = _CmdHeader.ClipRect; 524 } 525 526 void ImDrawList::_OnChangedTextureID() 527 { 528 // If current command is used with different settings we need to add a new command 529 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 530 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 531 if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId) 532 { 533 AddDrawCmd(); 534 return; 535 } 536 IM_ASSERT(curr_cmd->UserCallback == NULL); 537 538 // Try to merge with previous command if it matches, else use current command 539 ImDrawCmd* prev_cmd = curr_cmd - 1; 540 if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL) 541 { 542 CmdBuffer.pop_back(); 543 return; 544 } 545 546 curr_cmd->TextureId = _CmdHeader.TextureId; 547 } 548 549 void ImDrawList::_OnChangedVtxOffset() 550 { 551 // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this. 552 _VtxCurrentIdx = 0; 553 IM_ASSERT_PARANOID(CmdBuffer.Size > 0); 554 ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 555 //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349 556 if (curr_cmd->ElemCount != 0) 557 { 558 AddDrawCmd(); 559 return; 560 } 561 IM_ASSERT(curr_cmd->UserCallback == NULL); 562 curr_cmd->VtxOffset = _CmdHeader.VtxOffset; 563 } 564 565 int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const 566 { 567 // Automatic segment count 568 const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy 569 if (radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts)) 570 return _Data->CircleSegmentCounts[radius_idx]; // Use cached value 571 else 572 return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError); 573 } 574 575 // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling) 576 void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect) 577 { 578 ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y); 579 if (intersect_with_current_clip_rect) 580 { 581 ImVec4 current = _CmdHeader.ClipRect; 582 if (cr.x < current.x) cr.x = current.x; 583 if (cr.y < current.y) cr.y = current.y; 584 if (cr.z > current.z) cr.z = current.z; 585 if (cr.w > current.w) cr.w = current.w; 586 } 587 cr.z = ImMax(cr.x, cr.z); 588 cr.w = ImMax(cr.y, cr.w); 589 590 _ClipRectStack.push_back(cr); 591 _CmdHeader.ClipRect = cr; 592 _OnChangedClipRect(); 593 } 594 595 void ImDrawList::PushClipRectFullScreen() 596 { 597 PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w)); 598 } 599 600 void ImDrawList::PopClipRect() 601 { 602 _ClipRectStack.pop_back(); 603 _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1]; 604 _OnChangedClipRect(); 605 } 606 607 void ImDrawList::PushTextureID(ImTextureID texture_id) 608 { 609 _TextureIdStack.push_back(texture_id); 610 _CmdHeader.TextureId = texture_id; 611 _OnChangedTextureID(); 612 } 613 614 void ImDrawList::PopTextureID() 615 { 616 _TextureIdStack.pop_back(); 617 _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1]; 618 _OnChangedTextureID(); 619 } 620 621 // Reserve space for a number of vertices and indices. 622 // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or 623 // submit the intermediate results. PrimUnreserve() can be used to release unused allocations. 624 void ImDrawList::PrimReserve(int idx_count, int vtx_count) 625 { 626 // Large mesh support (when enabled) 627 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0); 628 if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset)) 629 { 630 // FIXME: In theory we should be testing that vtx_count <64k here. 631 // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us 632 // to not make that check until we rework the text functions to handle clipping and large horizontal lines better. 633 _CmdHeader.VtxOffset = VtxBuffer.Size; 634 _OnChangedVtxOffset(); 635 } 636 637 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 638 draw_cmd->ElemCount += idx_count; 639 640 int vtx_buffer_old_size = VtxBuffer.Size; 641 VtxBuffer.resize(vtx_buffer_old_size + vtx_count); 642 _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size; 643 644 int idx_buffer_old_size = IdxBuffer.Size; 645 IdxBuffer.resize(idx_buffer_old_size + idx_count); 646 _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size; 647 } 648 649 // Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve(). 650 void ImDrawList::PrimUnreserve(int idx_count, int vtx_count) 651 { 652 IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0); 653 654 ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1]; 655 draw_cmd->ElemCount -= idx_count; 656 VtxBuffer.shrink(VtxBuffer.Size - vtx_count); 657 IdxBuffer.shrink(IdxBuffer.Size - idx_count); 658 } 659 660 // Fully unrolled with inline call to keep our debug builds decently fast. 661 void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col) 662 { 663 ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel); 664 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 665 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 666 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 667 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 668 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col; 669 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col; 670 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col; 671 _VtxWritePtr += 4; 672 _VtxCurrentIdx += 4; 673 _IdxWritePtr += 6; 674 } 675 676 void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col) 677 { 678 ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y); 679 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 680 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 681 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 682 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 683 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 684 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 685 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 686 _VtxWritePtr += 4; 687 _VtxCurrentIdx += 4; 688 _IdxWritePtr += 6; 689 } 690 691 void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col) 692 { 693 ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx; 694 _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2); 695 _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3); 696 _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col; 697 _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col; 698 _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col; 699 _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col; 700 _VtxWritePtr += 4; 701 _VtxCurrentIdx += 4; 702 _IdxWritePtr += 6; 703 } 704 705 // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds. 706 // - Those macros expects l-values and need to be used as their own statement. 707 // - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers. 708 #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0 709 #define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366) 710 #define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0 711 712 // TODO: Thickness anti-aliased lines cap are missing their AA fringe. 713 // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds. 714 void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness) 715 { 716 if (points_count < 2 || (col & IM_COL32_A_MASK) == 0) 717 return; 718 719 const bool closed = (flags & ImDrawFlags_Closed) != 0; 720 const ImVec2 opaque_uv = _Data->TexUvWhitePixel; 721 const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw 722 const bool thick_line = (thickness > _FringeScale); 723 724 if (Flags & ImDrawListFlags_AntiAliasedLines) 725 { 726 // Anti-aliased stroke 727 const float AA_SIZE = _FringeScale; 728 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 729 730 // Thicknesses <1.0 should behave like thickness 1.0 731 thickness = ImMax(thickness, 1.0f); 732 const int integer_thickness = (int)thickness; 733 const float fractional_thickness = thickness - integer_thickness; 734 735 // Do we want to draw this line using a texture? 736 // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved. 737 // - If AA_SIZE is not 1.0f we cannot use the texture path. 738 const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f); 739 740 // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off 741 IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines)); 742 743 const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12); 744 const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3); 745 PrimReserve(idx_count, vtx_count); 746 747 // Temporary buffer 748 // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point 749 _Data->TempBuffer.reserve_discard(points_count * ((use_texture || !thick_line) ? 3 : 5)); 750 ImVec2* temp_normals = _Data->TempBuffer.Data; 751 ImVec2* temp_points = temp_normals + points_count; 752 753 // Calculate normals (tangents) for each line segment 754 for (int i1 = 0; i1 < count; i1++) 755 { 756 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; 757 float dx = points[i2].x - points[i1].x; 758 float dy = points[i2].y - points[i1].y; 759 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 760 temp_normals[i1].x = dy; 761 temp_normals[i1].y = -dx; 762 } 763 if (!closed) 764 temp_normals[points_count - 1] = temp_normals[points_count - 2]; 765 766 // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point 767 if (use_texture || !thick_line) 768 { 769 // [PATH 1] Texture-based lines (thick or non-thick) 770 // [PATH 2] Non texture-based lines (non-thick) 771 772 // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA. 773 // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture 774 // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code. 775 // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to 776 // allow scaling geometry while preserving one-screen-pixel AA fringe). 777 const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE; 778 779 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend 780 if (!closed) 781 { 782 temp_points[0] = points[0] + temp_normals[0] * half_draw_size; 783 temp_points[1] = points[0] - temp_normals[0] * half_draw_size; 784 temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size; 785 temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size; 786 } 787 788 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges 789 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps) 790 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 791 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment 792 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment 793 { 794 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment 795 const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment 796 797 // Average normals 798 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f; 799 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f; 800 IM_FIXNORMAL2F(dm_x, dm_y); 801 dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area 802 dm_y *= half_draw_size; 803 804 // Add temporary vertexes for the outer edges 805 ImVec2* out_vtx = &temp_points[i2 * 2]; 806 out_vtx[0].x = points[i2].x + dm_x; 807 out_vtx[0].y = points[i2].y + dm_y; 808 out_vtx[1].x = points[i2].x - dm_x; 809 out_vtx[1].y = points[i2].y - dm_y; 810 811 if (use_texture) 812 { 813 // Add indices for two triangles 814 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri 815 _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri 816 _IdxWritePtr += 6; 817 } 818 else 819 { 820 // Add indexes for four triangles 821 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1 822 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2 823 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1 824 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2 825 _IdxWritePtr += 12; 826 } 827 828 idx1 = idx2; 829 } 830 831 // Add vertexes for each point on the line 832 if (use_texture) 833 { 834 // If we're using textures we only need to emit the left/right edge vertices 835 ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness]; 836 /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false! 837 { 838 const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1]; 839 tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp() 840 tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness; 841 tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness; 842 tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness; 843 }*/ 844 ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y); 845 ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w); 846 for (int i = 0; i < points_count; i++) 847 { 848 _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge 849 _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge 850 _VtxWritePtr += 2; 851 } 852 } 853 else 854 { 855 // If we're not using a texture, we need the center vertex as well 856 for (int i = 0; i < points_count; i++) 857 { 858 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line 859 _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge 860 _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge 861 _VtxWritePtr += 3; 862 } 863 } 864 } 865 else 866 { 867 // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point 868 const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f; 869 870 // If line is not closed, the first and last points need to be generated differently as there are no normals to blend 871 if (!closed) 872 { 873 const int points_last = points_count - 1; 874 temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE); 875 temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness); 876 temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness); 877 temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE); 878 temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE); 879 temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness); 880 temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness); 881 temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE); 882 } 883 884 // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges 885 // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps) 886 // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer. 887 unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment 888 for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment 889 { 890 const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment 891 const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment 892 893 // Average normals 894 float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f; 895 float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f; 896 IM_FIXNORMAL2F(dm_x, dm_y); 897 float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE); 898 float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE); 899 float dm_in_x = dm_x * half_inner_thickness; 900 float dm_in_y = dm_y * half_inner_thickness; 901 902 // Add temporary vertices 903 ImVec2* out_vtx = &temp_points[i2 * 4]; 904 out_vtx[0].x = points[i2].x + dm_out_x; 905 out_vtx[0].y = points[i2].y + dm_out_y; 906 out_vtx[1].x = points[i2].x + dm_in_x; 907 out_vtx[1].y = points[i2].y + dm_in_y; 908 out_vtx[2].x = points[i2].x - dm_in_x; 909 out_vtx[2].y = points[i2].y - dm_in_y; 910 out_vtx[3].x = points[i2].x - dm_out_x; 911 out_vtx[3].y = points[i2].y - dm_out_y; 912 913 // Add indexes 914 _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); 915 _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1); 916 _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); 917 _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); 918 _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3); 919 _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2); 920 _IdxWritePtr += 18; 921 922 idx1 = idx2; 923 } 924 925 // Add vertices 926 for (int i = 0; i < points_count; i++) 927 { 928 _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans; 929 _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col; 930 _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col; 931 _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans; 932 _VtxWritePtr += 4; 933 } 934 } 935 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 936 } 937 else 938 { 939 // [PATH 4] Non texture-based, Non anti-aliased lines 940 const int idx_count = count * 6; 941 const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges 942 PrimReserve(idx_count, vtx_count); 943 944 for (int i1 = 0; i1 < count; i1++) 945 { 946 const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; 947 const ImVec2& p1 = points[i1]; 948 const ImVec2& p2 = points[i2]; 949 950 float dx = p2.x - p1.x; 951 float dy = p2.y - p1.y; 952 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 953 dx *= (thickness * 0.5f); 954 dy *= (thickness * 0.5f); 955 956 _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; 957 _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col; 958 _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col; 959 _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col; 960 _VtxWritePtr += 4; 961 962 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2); 963 _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3); 964 _IdxWritePtr += 6; 965 _VtxCurrentIdx += 4; 966 } 967 } 968 } 969 970 // - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds. 971 // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing. 972 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col) 973 { 974 if (points_count < 3 || (col & IM_COL32_A_MASK) == 0) 975 return; 976 977 const ImVec2 uv = _Data->TexUvWhitePixel; 978 979 if (Flags & ImDrawListFlags_AntiAliasedFill) 980 { 981 // Anti-aliased Fill 982 const float AA_SIZE = _FringeScale; 983 const ImU32 col_trans = col & ~IM_COL32_A_MASK; 984 const int idx_count = (points_count - 2)*3 + points_count * 6; 985 const int vtx_count = (points_count * 2); 986 PrimReserve(idx_count, vtx_count); 987 988 // Add indexes for fill 989 unsigned int vtx_inner_idx = _VtxCurrentIdx; 990 unsigned int vtx_outer_idx = _VtxCurrentIdx + 1; 991 for (int i = 2; i < points_count; i++) 992 { 993 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1)); 994 _IdxWritePtr += 3; 995 } 996 997 // Compute normals 998 _Data->TempBuffer.reserve_discard(points_count); 999 ImVec2* temp_normals = _Data->TempBuffer.Data; 1000 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++) 1001 { 1002 const ImVec2& p0 = points[i0]; 1003 const ImVec2& p1 = points[i1]; 1004 float dx = p1.x - p0.x; 1005 float dy = p1.y - p0.y; 1006 IM_NORMALIZE2F_OVER_ZERO(dx, dy); 1007 temp_normals[i0].x = dy; 1008 temp_normals[i0].y = -dx; 1009 } 1010 1011 for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++) 1012 { 1013 // Average normals 1014 const ImVec2& n0 = temp_normals[i0]; 1015 const ImVec2& n1 = temp_normals[i1]; 1016 float dm_x = (n0.x + n1.x) * 0.5f; 1017 float dm_y = (n0.y + n1.y) * 0.5f; 1018 IM_FIXNORMAL2F(dm_x, dm_y); 1019 dm_x *= AA_SIZE * 0.5f; 1020 dm_y *= AA_SIZE * 0.5f; 1021 1022 // Add vertices 1023 _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner 1024 _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer 1025 _VtxWritePtr += 2; 1026 1027 // Add indexes for fringes 1028 _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); 1029 _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); 1030 _IdxWritePtr += 6; 1031 } 1032 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 1033 } 1034 else 1035 { 1036 // Non Anti-aliased Fill 1037 const int idx_count = (points_count - 2)*3; 1038 const int vtx_count = points_count; 1039 PrimReserve(idx_count, vtx_count); 1040 for (int i = 0; i < vtx_count; i++) 1041 { 1042 _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; 1043 _VtxWritePtr++; 1044 } 1045 for (int i = 2; i < points_count; i++) 1046 { 1047 _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i); 1048 _IdxWritePtr += 3; 1049 } 1050 _VtxCurrentIdx += (ImDrawIdx)vtx_count; 1051 } 1052 } 1053 1054 void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step) 1055 { 1056 if (radius < 0.5f) 1057 { 1058 _Path.push_back(center); 1059 return; 1060 } 1061 1062 // Calculate arc auto segment step size 1063 if (a_step <= 0) 1064 a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius); 1065 1066 // Make sure we never do steps larger than one quarter of the circle 1067 a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4); 1068 1069 const int sample_range = ImAbs(a_max_sample - a_min_sample); 1070 const int a_next_step = a_step; 1071 1072 int samples = sample_range + 1; 1073 bool extra_max_sample = false; 1074 if (a_step > 1) 1075 { 1076 samples = sample_range / a_step + 1; 1077 const int overstep = sample_range % a_step; 1078 1079 if (overstep > 0) 1080 { 1081 extra_max_sample = true; 1082 samples++; 1083 1084 // When we have overstep to avoid awkwardly looking one long line and one tiny one at the end, 1085 // distribute first step range evenly between them by reducing first step size. 1086 if (sample_range > 0) 1087 a_step -= (a_step - overstep) / 2; 1088 } 1089 } 1090 1091 _Path.resize(_Path.Size + samples); 1092 ImVec2* out_ptr = _Path.Data + (_Path.Size - samples); 1093 1094 int sample_index = a_min_sample; 1095 if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX) 1096 { 1097 sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1098 if (sample_index < 0) 1099 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1100 } 1101 1102 if (a_max_sample >= a_min_sample) 1103 { 1104 for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step) 1105 { 1106 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more 1107 if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX) 1108 sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1109 1110 const ImVec2 s = _Data->ArcFastVtx[sample_index]; 1111 out_ptr->x = center.x + s.x * radius; 1112 out_ptr->y = center.y + s.y * radius; 1113 out_ptr++; 1114 } 1115 } 1116 else 1117 { 1118 for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step) 1119 { 1120 // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more 1121 if (sample_index < 0) 1122 sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1123 1124 const ImVec2 s = _Data->ArcFastVtx[sample_index]; 1125 out_ptr->x = center.x + s.x * radius; 1126 out_ptr->y = center.y + s.y * radius; 1127 out_ptr++; 1128 } 1129 } 1130 1131 if (extra_max_sample) 1132 { 1133 int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1134 if (normalized_max_sample < 0) 1135 normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1136 1137 const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample]; 1138 out_ptr->x = center.x + s.x * radius; 1139 out_ptr->y = center.y + s.y * radius; 1140 out_ptr++; 1141 } 1142 1143 IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr); 1144 } 1145 1146 void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments) 1147 { 1148 if (radius < 0.5f) 1149 { 1150 _Path.push_back(center); 1151 return; 1152 } 1153 1154 // Note that we are adding a point at both a_min and a_max. 1155 // If you are trying to draw a full closed circle you don't want the overlapping points! 1156 _Path.reserve(_Path.Size + (num_segments + 1)); 1157 for (int i = 0; i <= num_segments; i++) 1158 { 1159 const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min); 1160 _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius)); 1161 } 1162 } 1163 1164 // 0: East, 3: South, 6: West, 9: North, 12: East 1165 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12) 1166 { 1167 if (radius < 0.5f) 1168 { 1169 _Path.push_back(center); 1170 return; 1171 } 1172 _PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0); 1173 } 1174 1175 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments) 1176 { 1177 if (radius < 0.5f) 1178 { 1179 _Path.push_back(center); 1180 return; 1181 } 1182 1183 if (num_segments > 0) 1184 { 1185 _PathArcToN(center, radius, a_min, a_max, num_segments); 1186 return; 1187 } 1188 1189 // Automatic segment count 1190 if (radius <= _Data->ArcFastRadiusCutoff) 1191 { 1192 const bool a_is_reverse = a_max < a_min; 1193 1194 // We are going to use precomputed values for mid samples. 1195 // Determine first and last sample in lookup table that belong to the arc. 1196 const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f); 1197 const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f); 1198 1199 const int a_min_sample = a_is_reverse ? (int)ImFloorSigned(a_min_sample_f) : (int)ImCeil(a_min_sample_f); 1200 const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloorSigned(a_max_sample_f); 1201 const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0); 1202 1203 const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1204 const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX; 1205 const bool a_emit_start = ImAbs(a_min_segment_angle - a_min) >= 1e-5f; 1206 const bool a_emit_end = ImAbs(a_max - a_max_segment_angle) >= 1e-5f; 1207 1208 _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0))); 1209 if (a_emit_start) 1210 _Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius)); 1211 if (a_mid_samples > 0) 1212 _PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0); 1213 if (a_emit_end) 1214 _Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius)); 1215 } 1216 else 1217 { 1218 const float arc_length = ImAbs(a_max - a_min); 1219 const int circle_segment_count = _CalcCircleAutoSegmentCount(radius); 1220 const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length)); 1221 _PathArcToN(center, radius, a_min, a_max, arc_segment_count); 1222 } 1223 } 1224 1225 ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t) 1226 { 1227 float u = 1.0f - t; 1228 float w1 = u * u * u; 1229 float w2 = 3 * u * u * t; 1230 float w3 = 3 * u * t * t; 1231 float w4 = t * t * t; 1232 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y); 1233 } 1234 1235 ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t) 1236 { 1237 float u = 1.0f - t; 1238 float w1 = u * u; 1239 float w2 = 2 * u * t; 1240 float w3 = t * t; 1241 return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y); 1242 } 1243 1244 // Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp 1245 static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level) 1246 { 1247 float dx = x4 - x1; 1248 float dy = y4 - y1; 1249 float d2 = (x2 - x4) * dy - (y2 - y4) * dx; 1250 float d3 = (x3 - x4) * dy - (y3 - y4) * dx; 1251 d2 = (d2 >= 0) ? d2 : -d2; 1252 d3 = (d3 >= 0) ? d3 : -d3; 1253 if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy)) 1254 { 1255 path->push_back(ImVec2(x4, y4)); 1256 } 1257 else if (level < 10) 1258 { 1259 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f; 1260 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f; 1261 float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f; 1262 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f; 1263 float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f; 1264 float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f; 1265 PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1); 1266 PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1); 1267 } 1268 } 1269 1270 static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level) 1271 { 1272 float dx = x3 - x1, dy = y3 - y1; 1273 float det = (x2 - x3) * dy - (y2 - y3) * dx; 1274 if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy)) 1275 { 1276 path->push_back(ImVec2(x3, y3)); 1277 } 1278 else if (level < 10) 1279 { 1280 float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f; 1281 float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f; 1282 float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f; 1283 PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1); 1284 PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1); 1285 } 1286 } 1287 1288 void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments) 1289 { 1290 ImVec2 p1 = _Path.back(); 1291 if (num_segments == 0) 1292 { 1293 IM_ASSERT(_Data->CurveTessellationTol > 0.0f); 1294 PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated 1295 } 1296 else 1297 { 1298 float t_step = 1.0f / (float)num_segments; 1299 for (int i_step = 1; i_step <= num_segments; i_step++) 1300 _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step)); 1301 } 1302 } 1303 1304 void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments) 1305 { 1306 ImVec2 p1 = _Path.back(); 1307 if (num_segments == 0) 1308 { 1309 IM_ASSERT(_Data->CurveTessellationTol > 0.0f); 1310 PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated 1311 } 1312 else 1313 { 1314 float t_step = 1.0f / (float)num_segments; 1315 for (int i_step = 1; i_step <= num_segments; i_step++) 1316 _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step)); 1317 } 1318 } 1319 1320 IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4)); 1321 static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags) 1322 { 1323 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS 1324 // Obsoleted in 1.82 (from February 2021) 1325 // Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All) 1326 // ~0 --> ImDrawFlags_RoundCornersAll or 0 1327 if (flags == ~0) 1328 return ImDrawFlags_RoundCornersAll; 1329 1330 // Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations) 1331 // 0x01 --> ImDrawFlags_RoundCornersTopLeft (VALUE 0x01 OVERLAPS ImDrawFlags_Closed but ImDrawFlags_Closed is never valid in this path!) 1332 // 0x02 --> ImDrawFlags_RoundCornersTopRight 1333 // 0x03 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersTopRight 1334 // 0x04 --> ImDrawFlags_RoundCornersBotLeft 1335 // 0x05 --> ImDrawFlags_RoundCornersTopLeft | ImDrawFlags_RoundCornersBotLeft 1336 // ... 1337 // 0x0F --> ImDrawFlags_RoundCornersAll or 0 1338 // (See all values in ImDrawCornerFlags_) 1339 if (flags >= 0x01 && flags <= 0x0F) 1340 return (flags << 4); 1341 1342 // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f' 1343 #endif 1344 1345 // If this triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values. 1346 // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc... 1347 IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!"); 1348 1349 if ((flags & ImDrawFlags_RoundCornersMask_) == 0) 1350 flags |= ImDrawFlags_RoundCornersAll; 1351 1352 return flags; 1353 } 1354 1355 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags) 1356 { 1357 flags = FixRectCornerFlags(flags); 1358 rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f ) - 1.0f); 1359 rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f ) - 1.0f); 1360 1361 if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone) 1362 { 1363 PathLineTo(a); 1364 PathLineTo(ImVec2(b.x, a.y)); 1365 PathLineTo(b); 1366 PathLineTo(ImVec2(a.x, b.y)); 1367 } 1368 else 1369 { 1370 const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f; 1371 const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f; 1372 const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f; 1373 const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f; 1374 PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9); 1375 PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12); 1376 PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3); 1377 PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6); 1378 } 1379 } 1380 1381 void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness) 1382 { 1383 if ((col & IM_COL32_A_MASK) == 0) 1384 return; 1385 PathLineTo(p1 + ImVec2(0.5f, 0.5f)); 1386 PathLineTo(p2 + ImVec2(0.5f, 0.5f)); 1387 PathStroke(col, 0, thickness); 1388 } 1389 1390 // p_min = upper-left, p_max = lower-right 1391 // Note we don't render 1 pixels sized rectangles properly. 1392 void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness) 1393 { 1394 if ((col & IM_COL32_A_MASK) == 0) 1395 return; 1396 if (Flags & ImDrawListFlags_AntiAliasedLines) 1397 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags); 1398 else 1399 PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes. 1400 PathStroke(col, ImDrawFlags_Closed, thickness); 1401 } 1402 1403 void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags) 1404 { 1405 if ((col & IM_COL32_A_MASK) == 0) 1406 return; 1407 if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone) 1408 { 1409 PrimReserve(6, 4); 1410 PrimRect(p_min, p_max, col); 1411 } 1412 else 1413 { 1414 PathRect(p_min, p_max, rounding, flags); 1415 PathFillConvex(col); 1416 } 1417 } 1418 1419 // p_min = upper-left, p_max = lower-right 1420 void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left) 1421 { 1422 if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0) 1423 return; 1424 1425 const ImVec2 uv = _Data->TexUvWhitePixel; 1426 PrimReserve(6, 4); 1427 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); 1428 PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3)); 1429 PrimWriteVtx(p_min, uv, col_upr_left); 1430 PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right); 1431 PrimWriteVtx(p_max, uv, col_bot_right); 1432 PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left); 1433 } 1434 1435 void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness) 1436 { 1437 if ((col & IM_COL32_A_MASK) == 0) 1438 return; 1439 1440 PathLineTo(p1); 1441 PathLineTo(p2); 1442 PathLineTo(p3); 1443 PathLineTo(p4); 1444 PathStroke(col, ImDrawFlags_Closed, thickness); 1445 } 1446 1447 void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col) 1448 { 1449 if ((col & IM_COL32_A_MASK) == 0) 1450 return; 1451 1452 PathLineTo(p1); 1453 PathLineTo(p2); 1454 PathLineTo(p3); 1455 PathLineTo(p4); 1456 PathFillConvex(col); 1457 } 1458 1459 void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness) 1460 { 1461 if ((col & IM_COL32_A_MASK) == 0) 1462 return; 1463 1464 PathLineTo(p1); 1465 PathLineTo(p2); 1466 PathLineTo(p3); 1467 PathStroke(col, ImDrawFlags_Closed, thickness); 1468 } 1469 1470 void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col) 1471 { 1472 if ((col & IM_COL32_A_MASK) == 0) 1473 return; 1474 1475 PathLineTo(p1); 1476 PathLineTo(p2); 1477 PathLineTo(p3); 1478 PathFillConvex(col); 1479 } 1480 1481 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness) 1482 { 1483 if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f) 1484 return; 1485 1486 if (num_segments <= 0) 1487 { 1488 // Use arc with automatic segment count 1489 _PathArcToFastEx(center, radius - 0.5f, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0); 1490 _Path.Size--; 1491 } 1492 else 1493 { 1494 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes) 1495 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX); 1496 1497 // Because we are filling a closed shape we remove 1 from the count of segments/points 1498 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1499 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1); 1500 } 1501 1502 PathStroke(col, ImDrawFlags_Closed, thickness); 1503 } 1504 1505 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments) 1506 { 1507 if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f) 1508 return; 1509 1510 if (num_segments <= 0) 1511 { 1512 // Use arc with automatic segment count 1513 _PathArcToFastEx(center, radius, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0); 1514 _Path.Size--; 1515 } 1516 else 1517 { 1518 // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes) 1519 num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX); 1520 1521 // Because we are filling a closed shape we remove 1 from the count of segments/points 1522 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1523 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1); 1524 } 1525 1526 PathFillConvex(col); 1527 } 1528 1529 // Guaranteed to honor 'num_segments' 1530 void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness) 1531 { 1532 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2) 1533 return; 1534 1535 // Because we are filling a closed shape we remove 1 from the count of segments/points 1536 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1537 PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1); 1538 PathStroke(col, ImDrawFlags_Closed, thickness); 1539 } 1540 1541 // Guaranteed to honor 'num_segments' 1542 void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments) 1543 { 1544 if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2) 1545 return; 1546 1547 // Because we are filling a closed shape we remove 1 from the count of segments/points 1548 const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments; 1549 PathArcTo(center, radius, 0.0f, a_max, num_segments - 1); 1550 PathFillConvex(col); 1551 } 1552 1553 // Cubic Bezier takes 4 controls points 1554 void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments) 1555 { 1556 if ((col & IM_COL32_A_MASK) == 0) 1557 return; 1558 1559 PathLineTo(p1); 1560 PathBezierCubicCurveTo(p2, p3, p4, num_segments); 1561 PathStroke(col, 0, thickness); 1562 } 1563 1564 // Quadratic Bezier takes 3 controls points 1565 void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments) 1566 { 1567 if ((col & IM_COL32_A_MASK) == 0) 1568 return; 1569 1570 PathLineTo(p1); 1571 PathBezierQuadraticCurveTo(p2, p3, num_segments); 1572 PathStroke(col, 0, thickness); 1573 } 1574 1575 void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect) 1576 { 1577 if ((col & IM_COL32_A_MASK) == 0) 1578 return; 1579 1580 if (text_end == NULL) 1581 text_end = text_begin + strlen(text_begin); 1582 if (text_begin == text_end) 1583 return; 1584 1585 // Pull default font/size from the shared ImDrawListSharedData instance 1586 if (font == NULL) 1587 font = _Data->Font; 1588 if (font_size == 0.0f) 1589 font_size = _Data->FontSize; 1590 1591 IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font. 1592 1593 ImVec4 clip_rect = _CmdHeader.ClipRect; 1594 if (cpu_fine_clip_rect) 1595 { 1596 clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x); 1597 clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y); 1598 clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z); 1599 clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w); 1600 } 1601 font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL); 1602 } 1603 1604 void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end) 1605 { 1606 AddText(NULL, 0.0f, pos, col, text_begin, text_end); 1607 } 1608 1609 void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col) 1610 { 1611 if ((col & IM_COL32_A_MASK) == 0) 1612 return; 1613 1614 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId; 1615 if (push_texture_id) 1616 PushTextureID(user_texture_id); 1617 1618 PrimReserve(6, 4); 1619 PrimRectUV(p_min, p_max, uv_min, uv_max, col); 1620 1621 if (push_texture_id) 1622 PopTextureID(); 1623 } 1624 1625 void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col) 1626 { 1627 if ((col & IM_COL32_A_MASK) == 0) 1628 return; 1629 1630 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId; 1631 if (push_texture_id) 1632 PushTextureID(user_texture_id); 1633 1634 PrimReserve(6, 4); 1635 PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col); 1636 1637 if (push_texture_id) 1638 PopTextureID(); 1639 } 1640 1641 void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags) 1642 { 1643 if ((col & IM_COL32_A_MASK) == 0) 1644 return; 1645 1646 flags = FixRectCornerFlags(flags); 1647 if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone) 1648 { 1649 AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col); 1650 return; 1651 } 1652 1653 const bool push_texture_id = user_texture_id != _CmdHeader.TextureId; 1654 if (push_texture_id) 1655 PushTextureID(user_texture_id); 1656 1657 int vert_start_idx = VtxBuffer.Size; 1658 PathRect(p_min, p_max, rounding, flags); 1659 PathFillConvex(col); 1660 int vert_end_idx = VtxBuffer.Size; 1661 ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true); 1662 1663 if (push_texture_id) 1664 PopTextureID(); 1665 } 1666 1667 1668 //----------------------------------------------------------------------------- 1669 // [SECTION] ImDrawListSplitter 1670 //----------------------------------------------------------------------------- 1671 // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap.. 1672 //----------------------------------------------------------------------------- 1673 1674 void ImDrawListSplitter::ClearFreeMemory() 1675 { 1676 for (int i = 0; i < _Channels.Size; i++) 1677 { 1678 if (i == _Current) 1679 memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again 1680 _Channels[i]._CmdBuffer.clear(); 1681 _Channels[i]._IdxBuffer.clear(); 1682 } 1683 _Current = 0; 1684 _Count = 1; 1685 _Channels.clear(); 1686 } 1687 1688 void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count) 1689 { 1690 IM_UNUSED(draw_list); 1691 IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter."); 1692 int old_channels_count = _Channels.Size; 1693 if (old_channels_count < channels_count) 1694 { 1695 _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable 1696 _Channels.resize(channels_count); 1697 } 1698 _Count = channels_count; 1699 1700 // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer 1701 // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to. 1702 // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer 1703 memset(&_Channels[0], 0, sizeof(ImDrawChannel)); 1704 for (int i = 1; i < channels_count; i++) 1705 { 1706 if (i >= old_channels_count) 1707 { 1708 IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel(); 1709 } 1710 else 1711 { 1712 _Channels[i]._CmdBuffer.resize(0); 1713 _Channels[i]._IdxBuffer.resize(0); 1714 } 1715 } 1716 } 1717 1718 void ImDrawListSplitter::Merge(ImDrawList* draw_list) 1719 { 1720 // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use. 1721 if (_Count <= 1) 1722 return; 1723 1724 SetCurrentChannel(draw_list, 0); 1725 draw_list->_PopUnusedDrawCmd(); 1726 1727 // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command. 1728 int new_cmd_buffer_count = 0; 1729 int new_idx_buffer_count = 0; 1730 ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL; 1731 int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0; 1732 for (int i = 1; i < _Count; i++) 1733 { 1734 ImDrawChannel& ch = _Channels[i]; 1735 if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd() 1736 ch._CmdBuffer.pop_back(); 1737 1738 if (ch._CmdBuffer.Size > 0 && last_cmd != NULL) 1739 { 1740 // Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves. 1741 // Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter. 1742 ImDrawCmd* next_cmd = &ch._CmdBuffer[0]; 1743 if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL) 1744 { 1745 // Merge previous channel last draw command with current channel first draw command if matching. 1746 last_cmd->ElemCount += next_cmd->ElemCount; 1747 idx_offset += next_cmd->ElemCount; 1748 ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges. 1749 } 1750 } 1751 if (ch._CmdBuffer.Size > 0) 1752 last_cmd = &ch._CmdBuffer.back(); 1753 new_cmd_buffer_count += ch._CmdBuffer.Size; 1754 new_idx_buffer_count += ch._IdxBuffer.Size; 1755 for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++) 1756 { 1757 ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset; 1758 idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount; 1759 } 1760 } 1761 draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count); 1762 draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count); 1763 1764 // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices) 1765 ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count; 1766 ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count; 1767 for (int i = 1; i < _Count; i++) 1768 { 1769 ImDrawChannel& ch = _Channels[i]; 1770 if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; } 1771 if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; } 1772 } 1773 draw_list->_IdxWritePtr = idx_write; 1774 1775 // Ensure there's always a non-callback draw command trailing the command-buffer 1776 if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL) 1777 draw_list->AddDrawCmd(); 1778 1779 // If current command is used with different settings we need to add a new command 1780 ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1]; 1781 if (curr_cmd->ElemCount == 0) 1782 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset 1783 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0) 1784 draw_list->AddDrawCmd(); 1785 1786 _Count = 1; 1787 } 1788 1789 void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx) 1790 { 1791 IM_ASSERT(idx >= 0 && idx < _Count); 1792 if (_Current == idx) 1793 return; 1794 1795 // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap() 1796 memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer)); 1797 memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer)); 1798 _Current = idx; 1799 memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer)); 1800 memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer)); 1801 draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size; 1802 1803 // If current command is used with different settings we need to add a new command 1804 ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1]; 1805 if (curr_cmd == NULL) 1806 draw_list->AddDrawCmd(); 1807 else if (curr_cmd->ElemCount == 0) 1808 ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset 1809 else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0) 1810 draw_list->AddDrawCmd(); 1811 } 1812 1813 //----------------------------------------------------------------------------- 1814 // [SECTION] ImDrawData 1815 //----------------------------------------------------------------------------- 1816 1817 // For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering! 1818 void ImDrawData::DeIndexAllBuffers() 1819 { 1820 ImVector<ImDrawVert> new_vtx_buffer; 1821 TotalVtxCount = TotalIdxCount = 0; 1822 for (int i = 0; i < CmdListsCount; i++) 1823 { 1824 ImDrawList* cmd_list = CmdLists[i]; 1825 if (cmd_list->IdxBuffer.empty()) 1826 continue; 1827 new_vtx_buffer.resize(cmd_list->IdxBuffer.Size); 1828 for (int j = 0; j < cmd_list->IdxBuffer.Size; j++) 1829 new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]]; 1830 cmd_list->VtxBuffer.swap(new_vtx_buffer); 1831 cmd_list->IdxBuffer.resize(0); 1832 TotalVtxCount += cmd_list->VtxBuffer.Size; 1833 } 1834 } 1835 1836 // Helper to scale the ClipRect field of each ImDrawCmd. 1837 // Use if your final output buffer is at a different scale than draw_data->DisplaySize, 1838 // or if there is a difference between your window resolution and framebuffer resolution. 1839 void ImDrawData::ScaleClipRects(const ImVec2& fb_scale) 1840 { 1841 for (int i = 0; i < CmdListsCount; i++) 1842 { 1843 ImDrawList* cmd_list = CmdLists[i]; 1844 for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) 1845 { 1846 ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i]; 1847 cmd->ClipRect = ImVec4(cmd->ClipRect.x * fb_scale.x, cmd->ClipRect.y * fb_scale.y, cmd->ClipRect.z * fb_scale.x, cmd->ClipRect.w * fb_scale.y); 1848 } 1849 } 1850 } 1851 1852 //----------------------------------------------------------------------------- 1853 // [SECTION] Helpers ShadeVertsXXX functions 1854 //----------------------------------------------------------------------------- 1855 1856 // Generic linear color gradient, write to RGB fields, leave A untouched. 1857 void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1) 1858 { 1859 ImVec2 gradient_extent = gradient_p1 - gradient_p0; 1860 float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent); 1861 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 1862 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 1863 const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF; 1864 const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF; 1865 const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF; 1866 const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r; 1867 const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g; 1868 const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b; 1869 for (ImDrawVert* vert = vert_start; vert < vert_end; vert++) 1870 { 1871 float d = ImDot(vert->pos - gradient_p0, gradient_extent); 1872 float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f); 1873 int r = (int)(col0_r + col_delta_r * t); 1874 int g = (int)(col0_g + col_delta_g * t); 1875 int b = (int)(col0_b + col_delta_b * t); 1876 vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK); 1877 } 1878 } 1879 1880 // Distribute UV over (a, b) rectangle 1881 void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp) 1882 { 1883 const ImVec2 size = b - a; 1884 const ImVec2 uv_size = uv_b - uv_a; 1885 const ImVec2 scale = ImVec2( 1886 size.x != 0.0f ? (uv_size.x / size.x) : 0.0f, 1887 size.y != 0.0f ? (uv_size.y / size.y) : 0.0f); 1888 1889 ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx; 1890 ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx; 1891 if (clamp) 1892 { 1893 const ImVec2 min = ImMin(uv_a, uv_b); 1894 const ImVec2 max = ImMax(uv_a, uv_b); 1895 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 1896 vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max); 1897 } 1898 else 1899 { 1900 for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex) 1901 vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale); 1902 } 1903 } 1904 1905 //----------------------------------------------------------------------------- 1906 // [SECTION] ImFontConfig 1907 //----------------------------------------------------------------------------- 1908 1909 ImFontConfig::ImFontConfig() 1910 { 1911 memset(this, 0, sizeof(*this)); 1912 FontDataOwnedByAtlas = true; 1913 OversampleH = 3; // FIXME: 2 may be a better default? 1914 OversampleV = 1; 1915 GlyphMaxAdvanceX = FLT_MAX; 1916 RasterizerMultiply = 1.0f; 1917 EllipsisChar = (ImWchar)-1; 1918 } 1919 1920 //----------------------------------------------------------------------------- 1921 // [SECTION] ImFontAtlas 1922 //----------------------------------------------------------------------------- 1923 1924 // A work of art lies ahead! (. = white layer, X = black layer, others are blank) 1925 // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes. 1926 // (This is used when io.MouseDrawCursor = true) 1927 const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 122; // Actual texture will be 2 times that + 1 spacing. 1928 const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27; 1929 static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] = 1930 { 1931 "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX - XX XX " 1932 "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X -X..X X..X" 1933 "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X -X...X X...X" 1934 "X - X.X - X.....X - X.....X -X...X - X...X- X..X - X...X X...X " 1935 "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X - X...X...X " 1936 "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX - X.....X " 1937 "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX - X...X " 1938 "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX - X.X " 1939 "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X - X...X " 1940 "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X- X.....X " 1941 "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X- X...X...X " 1942 "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X- X...X X...X " 1943 "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X-X...X X...X" 1944 "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X-X..X X..X" 1945 "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X- XX XX " 1946 "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X--------------" 1947 "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X - " 1948 "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X - " 1949 "X.X X..X - -X.......X- X.......X - XX XX - - X..........X - " 1950 "XX X..X - - X.....X - X.....X - X.X X.X - - X........X - " 1951 " X..X - - X...X - X...X - X..X X..X - - X........X - " 1952 " XX - - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX - " 1953 "------------- - X - X -X.....................X- ------------------- " 1954 " ----------------------------------- X...XXXXXXXXXXXXX...X - " 1955 " - X..X X..X - " 1956 " - X.X X.X - " 1957 " - XX XX - " 1958 }; 1959 1960 static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] = 1961 { 1962 // Pos ........ Size ......... Offset ...... 1963 { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow 1964 { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput 1965 { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll 1966 { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS 1967 { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW 1968 { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW 1969 { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE 1970 { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand 1971 { ImVec2(109,0),ImVec2(13,15), ImVec2( 6, 7) }, // ImGuiMouseCursor_NotAllowed 1972 }; 1973 1974 ImFontAtlas::ImFontAtlas() 1975 { 1976 memset(this, 0, sizeof(*this)); 1977 TexGlyphPadding = 1; 1978 PackIdMouseCursors = PackIdLines = -1; 1979 } 1980 1981 ImFontAtlas::~ImFontAtlas() 1982 { 1983 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1984 Clear(); 1985 } 1986 1987 void ImFontAtlas::ClearInputData() 1988 { 1989 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 1990 for (int i = 0; i < ConfigData.Size; i++) 1991 if (ConfigData[i].FontData && ConfigData[i].FontDataOwnedByAtlas) 1992 { 1993 IM_FREE(ConfigData[i].FontData); 1994 ConfigData[i].FontData = NULL; 1995 } 1996 1997 // When clearing this we lose access to the font name and other information used to build the font. 1998 for (int i = 0; i < Fonts.Size; i++) 1999 if (Fonts[i]->ConfigData >= ConfigData.Data && Fonts[i]->ConfigData < ConfigData.Data + ConfigData.Size) 2000 { 2001 Fonts[i]->ConfigData = NULL; 2002 Fonts[i]->ConfigDataCount = 0; 2003 } 2004 ConfigData.clear(); 2005 CustomRects.clear(); 2006 PackIdMouseCursors = PackIdLines = -1; 2007 // Important: we leave TexReady untouched 2008 } 2009 2010 void ImFontAtlas::ClearTexData() 2011 { 2012 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2013 if (TexPixelsAlpha8) 2014 IM_FREE(TexPixelsAlpha8); 2015 if (TexPixelsRGBA32) 2016 IM_FREE(TexPixelsRGBA32); 2017 TexPixelsAlpha8 = NULL; 2018 TexPixelsRGBA32 = NULL; 2019 TexPixelsUseColors = false; 2020 // Important: we leave TexReady untouched 2021 } 2022 2023 void ImFontAtlas::ClearFonts() 2024 { 2025 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2026 Fonts.clear_delete(); 2027 TexReady = false; 2028 } 2029 2030 void ImFontAtlas::Clear() 2031 { 2032 ClearInputData(); 2033 ClearTexData(); 2034 ClearFonts(); 2035 } 2036 2037 void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 2038 { 2039 // Build atlas on demand 2040 if (TexPixelsAlpha8 == NULL) 2041 Build(); 2042 2043 *out_pixels = TexPixelsAlpha8; 2044 if (out_width) *out_width = TexWidth; 2045 if (out_height) *out_height = TexHeight; 2046 if (out_bytes_per_pixel) *out_bytes_per_pixel = 1; 2047 } 2048 2049 void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel) 2050 { 2051 // Convert to RGBA32 format on demand 2052 // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp 2053 if (!TexPixelsRGBA32) 2054 { 2055 unsigned char* pixels = NULL; 2056 GetTexDataAsAlpha8(&pixels, NULL, NULL); 2057 if (pixels) 2058 { 2059 TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4); 2060 const unsigned char* src = pixels; 2061 unsigned int* dst = TexPixelsRGBA32; 2062 for (int n = TexWidth * TexHeight; n > 0; n--) 2063 *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++)); 2064 } 2065 } 2066 2067 *out_pixels = (unsigned char*)TexPixelsRGBA32; 2068 if (out_width) *out_width = TexWidth; 2069 if (out_height) *out_height = TexHeight; 2070 if (out_bytes_per_pixel) *out_bytes_per_pixel = 4; 2071 } 2072 2073 ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg) 2074 { 2075 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2076 IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0); 2077 IM_ASSERT(font_cfg->SizePixels > 0.0f); 2078 2079 // Create new font 2080 if (!font_cfg->MergeMode) 2081 Fonts.push_back(IM_NEW(ImFont)); 2082 else 2083 IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font. 2084 2085 ConfigData.push_back(*font_cfg); 2086 ImFontConfig& new_font_cfg = ConfigData.back(); 2087 if (new_font_cfg.DstFont == NULL) 2088 new_font_cfg.DstFont = Fonts.back(); 2089 if (!new_font_cfg.FontDataOwnedByAtlas) 2090 { 2091 new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize); 2092 new_font_cfg.FontDataOwnedByAtlas = true; 2093 memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize); 2094 } 2095 2096 if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1) 2097 new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar; 2098 2099 // Invalidate texture 2100 TexReady = false; 2101 ClearTexData(); 2102 return new_font_cfg.DstFont; 2103 } 2104 2105 // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder) 2106 static unsigned int stb_decompress_length(const unsigned char* input); 2107 static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length); 2108 static const char* GetDefaultCompressedFontDataTTFBase85(); 2109 static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; } 2110 static void Decode85(const unsigned char* src, unsigned char* dst) 2111 { 2112 while (*src) 2113 { 2114 unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4])))); 2115 dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness. 2116 src += 5; 2117 dst += 4; 2118 } 2119 } 2120 2121 // Load embedded ProggyClean.ttf at size 13, disable oversampling 2122 ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template) 2123 { 2124 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2125 if (!font_cfg_template) 2126 { 2127 font_cfg.OversampleH = font_cfg.OversampleV = 1; 2128 font_cfg.PixelSnapH = true; 2129 } 2130 if (font_cfg.SizePixels <= 0.0f) 2131 font_cfg.SizePixels = 13.0f * 1.0f; 2132 if (font_cfg.Name[0] == '\0') 2133 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels); 2134 font_cfg.EllipsisChar = (ImWchar)0x0085; 2135 font_cfg.GlyphOffset.y = 1.0f * IM_FLOOR(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units 2136 2137 const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85(); 2138 const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault(); 2139 ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges); 2140 return font; 2141 } 2142 2143 ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 2144 { 2145 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2146 size_t data_size = 0; 2147 void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0); 2148 if (!data) 2149 { 2150 IM_ASSERT_USER_ERROR(0, "Could not load font file!"); 2151 return NULL; 2152 } 2153 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2154 if (font_cfg.Name[0] == '\0') 2155 { 2156 // Store a short copy of filename into into the font name for convenience 2157 const char* p; 2158 for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {} 2159 ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels); 2160 } 2161 return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges); 2162 } 2163 2164 // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build(). 2165 ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* ttf_data, int ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 2166 { 2167 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2168 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2169 IM_ASSERT(font_cfg.FontData == NULL); 2170 font_cfg.FontData = ttf_data; 2171 font_cfg.FontDataSize = ttf_size; 2172 font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels; 2173 if (glyph_ranges) 2174 font_cfg.GlyphRanges = glyph_ranges; 2175 return AddFont(&font_cfg); 2176 } 2177 2178 ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges) 2179 { 2180 const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data); 2181 unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size); 2182 stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size); 2183 2184 ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig(); 2185 IM_ASSERT(font_cfg.FontData == NULL); 2186 font_cfg.FontDataOwnedByAtlas = true; 2187 return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges); 2188 } 2189 2190 ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges) 2191 { 2192 int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4; 2193 void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size); 2194 Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf); 2195 ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges); 2196 IM_FREE(compressed_ttf); 2197 return font; 2198 } 2199 2200 int ImFontAtlas::AddCustomRectRegular(int width, int height) 2201 { 2202 IM_ASSERT(width > 0 && width <= 0xFFFF); 2203 IM_ASSERT(height > 0 && height <= 0xFFFF); 2204 ImFontAtlasCustomRect r; 2205 r.Width = (unsigned short)width; 2206 r.Height = (unsigned short)height; 2207 CustomRects.push_back(r); 2208 return CustomRects.Size - 1; // Return index 2209 } 2210 2211 int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset) 2212 { 2213 #ifdef IMGUI_USE_WCHAR32 2214 IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX); 2215 #endif 2216 IM_ASSERT(font != NULL); 2217 IM_ASSERT(width > 0 && width <= 0xFFFF); 2218 IM_ASSERT(height > 0 && height <= 0xFFFF); 2219 ImFontAtlasCustomRect r; 2220 r.Width = (unsigned short)width; 2221 r.Height = (unsigned short)height; 2222 r.GlyphID = id; 2223 r.GlyphAdvanceX = advance_x; 2224 r.GlyphOffset = offset; 2225 r.Font = font; 2226 CustomRects.push_back(r); 2227 return CustomRects.Size - 1; // Return index 2228 } 2229 2230 void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const 2231 { 2232 IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates 2233 IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed 2234 *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y); 2235 *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y); 2236 } 2237 2238 bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2]) 2239 { 2240 if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT) 2241 return false; 2242 if (Flags & ImFontAtlasFlags_NoMouseCursors) 2243 return false; 2244 2245 IM_ASSERT(PackIdMouseCursors != -1); 2246 ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors); 2247 ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y); 2248 ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1]; 2249 *out_size = size; 2250 *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2]; 2251 out_uv_border[0] = (pos) * TexUvScale; 2252 out_uv_border[1] = (pos + size) * TexUvScale; 2253 pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1; 2254 out_uv_fill[0] = (pos) * TexUvScale; 2255 out_uv_fill[1] = (pos + size) * TexUvScale; 2256 return true; 2257 } 2258 2259 bool ImFontAtlas::Build() 2260 { 2261 IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!"); 2262 2263 // Default font is none are specified 2264 if (ConfigData.Size == 0) 2265 AddFontDefault(); 2266 2267 // Select builder 2268 // - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which 2269 // may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are 2270 // using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere 2271 // and point to it instead of pointing directly to return value of the GetBuilderXXX functions. 2272 const ImFontBuilderIO* builder_io = FontBuilderIO; 2273 if (builder_io == NULL) 2274 { 2275 #ifdef IMGUI_ENABLE_FREETYPE 2276 builder_io = ImGuiFreeType::GetBuilderForFreeType(); 2277 #elif defined(IMGUI_ENABLE_STB_TRUETYPE) 2278 builder_io = ImFontAtlasGetBuilderForStbTruetype(); 2279 #else 2280 IM_ASSERT(0); // Invalid Build function 2281 #endif 2282 } 2283 2284 // Build 2285 return builder_io->FontBuilder_Build(this); 2286 } 2287 2288 void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor) 2289 { 2290 for (unsigned int i = 0; i < 256; i++) 2291 { 2292 unsigned int value = (unsigned int)(i * in_brighten_factor); 2293 out_table[i] = value > 255 ? 255 : (value & 0xFF); 2294 } 2295 } 2296 2297 void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride) 2298 { 2299 IM_ASSERT_PARANOID(w <= stride); 2300 unsigned char* data = pixels + x + y * stride; 2301 for (int j = h; j > 0; j--, data += stride - w) 2302 for (int i = w; i > 0; i--, data++) 2303 *data = table[*data]; 2304 } 2305 2306 #ifdef IMGUI_ENABLE_STB_TRUETYPE 2307 // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont) 2308 // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.) 2309 struct ImFontBuildSrcData 2310 { 2311 stbtt_fontinfo FontInfo; 2312 stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data) 2313 stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position. 2314 stbtt_packedchar* PackedChars; // Output glyphs 2315 const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF) 2316 int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[] 2317 int GlyphsHighest; // Highest requested codepoint 2318 int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font) 2319 ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB) 2320 ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsSet) 2321 }; 2322 2323 // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont) 2324 struct ImFontBuildDstData 2325 { 2326 int SrcCount; // Number of source fonts targeting this destination font. 2327 int GlyphsHighest; 2328 int GlyphsCount; 2329 ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font. 2330 }; 2331 2332 static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out) 2333 { 2334 IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int)); 2335 const ImU32* it_begin = in->Storage.begin(); 2336 const ImU32* it_end = in->Storage.end(); 2337 for (const ImU32* it = it_begin; it < it_end; it++) 2338 if (ImU32 entries_32 = *it) 2339 for (ImU32 bit_n = 0; bit_n < 32; bit_n++) 2340 if (entries_32 & ((ImU32)1 << bit_n)) 2341 out->push_back((int)(((it - it_begin) << 5) + bit_n)); 2342 } 2343 2344 static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas) 2345 { 2346 IM_ASSERT(atlas->ConfigData.Size > 0); 2347 2348 ImFontAtlasBuildInit(atlas); 2349 2350 // Clear atlas 2351 atlas->TexID = (ImTextureID)NULL; 2352 atlas->TexWidth = atlas->TexHeight = 0; 2353 atlas->TexUvScale = ImVec2(0.0f, 0.0f); 2354 atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f); 2355 atlas->ClearTexData(); 2356 2357 // Temporary storage for building 2358 ImVector<ImFontBuildSrcData> src_tmp_array; 2359 ImVector<ImFontBuildDstData> dst_tmp_array; 2360 src_tmp_array.resize(atlas->ConfigData.Size); 2361 dst_tmp_array.resize(atlas->Fonts.Size); 2362 memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes()); 2363 memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes()); 2364 2365 // 1. Initialize font loading structure, check font data validity 2366 for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++) 2367 { 2368 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2369 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2370 IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas)); 2371 2372 // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices) 2373 src_tmp.DstIndex = -1; 2374 for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++) 2375 if (cfg.DstFont == atlas->Fonts[output_i]) 2376 src_tmp.DstIndex = output_i; 2377 if (src_tmp.DstIndex == -1) 2378 { 2379 IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array? 2380 return false; 2381 } 2382 // Initialize helper structure for font loading and verify that the TTF/OTF data is correct 2383 const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo); 2384 IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found."); 2385 if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset)) 2386 return false; 2387 2388 // Measure highest codepoints 2389 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex]; 2390 src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault(); 2391 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2) 2392 { 2393 // Check for valid range. This may also help detect *some* dangling pointers, because a common 2394 // user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent. 2395 IM_ASSERT(src_range[0] <= src_range[1]); 2396 src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]); 2397 } 2398 dst_tmp.SrcCount++; 2399 dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest); 2400 } 2401 2402 // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs. 2403 int total_glyphs_count = 0; 2404 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2405 { 2406 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2407 ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex]; 2408 src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1); 2409 if (dst_tmp.GlyphsSet.Storage.empty()) 2410 dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1); 2411 2412 for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2) 2413 for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++) 2414 { 2415 if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true) 2416 continue; 2417 if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font? 2418 continue; 2419 2420 // Add to avail set/counters 2421 src_tmp.GlyphsCount++; 2422 dst_tmp.GlyphsCount++; 2423 src_tmp.GlyphsSet.SetBit(codepoint); 2424 dst_tmp.GlyphsSet.SetBit(codepoint); 2425 total_glyphs_count++; 2426 } 2427 } 2428 2429 // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another) 2430 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2431 { 2432 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2433 src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount); 2434 UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList); 2435 src_tmp.GlyphsSet.Clear(); 2436 IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount); 2437 } 2438 for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++) 2439 dst_tmp_array[dst_i].GlyphsSet.Clear(); 2440 dst_tmp_array.clear(); 2441 2442 // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0) 2443 // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity) 2444 ImVector<stbrp_rect> buf_rects; 2445 ImVector<stbtt_packedchar> buf_packedchars; 2446 buf_rects.resize(total_glyphs_count); 2447 buf_packedchars.resize(total_glyphs_count); 2448 memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes()); 2449 memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes()); 2450 2451 // 4. Gather glyphs sizes so we can pack them in our virtual canvas. 2452 int total_surface = 0; 2453 int buf_rects_out_n = 0; 2454 int buf_packedchars_out_n = 0; 2455 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2456 { 2457 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2458 if (src_tmp.GlyphsCount == 0) 2459 continue; 2460 2461 src_tmp.Rects = &buf_rects[buf_rects_out_n]; 2462 src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n]; 2463 buf_rects_out_n += src_tmp.GlyphsCount; 2464 buf_packedchars_out_n += src_tmp.GlyphsCount; 2465 2466 // Convert our ranges in the format stb_truetype wants 2467 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2468 src_tmp.PackRange.font_size = cfg.SizePixels; 2469 src_tmp.PackRange.first_unicode_codepoint_in_range = 0; 2470 src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data; 2471 src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size; 2472 src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars; 2473 src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH; 2474 src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV; 2475 2476 // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects) 2477 const float scale = (cfg.SizePixels > 0) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels); 2478 const int padding = atlas->TexGlyphPadding; 2479 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++) 2480 { 2481 int x0, y0, x1, y1; 2482 const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]); 2483 IM_ASSERT(glyph_index_in_font != 0); 2484 stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1); 2485 src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1); 2486 src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1); 2487 total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h; 2488 } 2489 } 2490 2491 // We need a width for the skyline algorithm, any width! 2492 // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height. 2493 // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface. 2494 const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1; 2495 atlas->TexHeight = 0; 2496 if (atlas->TexDesiredWidth > 0) 2497 atlas->TexWidth = atlas->TexDesiredWidth; 2498 else 2499 atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512; 2500 2501 // 5. Start packing 2502 // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values). 2503 const int TEX_HEIGHT_MAX = 1024 * 32; 2504 stbtt_pack_context spc = {}; 2505 stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL); 2506 ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info); 2507 2508 // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point. 2509 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2510 { 2511 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2512 if (src_tmp.GlyphsCount == 0) 2513 continue; 2514 2515 stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount); 2516 2517 // Extend texture height and mark missing glyphs as non-packed so we won't render them. 2518 // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?) 2519 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++) 2520 if (src_tmp.Rects[glyph_i].was_packed) 2521 atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h); 2522 } 2523 2524 // 7. Allocate texture 2525 atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight); 2526 atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight); 2527 atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight); 2528 memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight); 2529 spc.pixels = atlas->TexPixelsAlpha8; 2530 spc.height = atlas->TexHeight; 2531 2532 // 8. Render/rasterize font characters into the texture 2533 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2534 { 2535 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2536 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2537 if (src_tmp.GlyphsCount == 0) 2538 continue; 2539 2540 stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects); 2541 2542 // Apply multiply operator 2543 if (cfg.RasterizerMultiply != 1.0f) 2544 { 2545 unsigned char multiply_table[256]; 2546 ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply); 2547 stbrp_rect* r = &src_tmp.Rects[0]; 2548 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++) 2549 if (r->was_packed) 2550 ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1); 2551 } 2552 src_tmp.Rects = NULL; 2553 } 2554 2555 // End packing 2556 stbtt_PackEnd(&spc); 2557 buf_rects.clear(); 2558 2559 // 9. Setup ImFont and glyphs for runtime 2560 for (int src_i = 0; src_i < src_tmp_array.Size; src_i++) 2561 { 2562 ImFontBuildSrcData& src_tmp = src_tmp_array[src_i]; 2563 if (src_tmp.GlyphsCount == 0) 2564 continue; 2565 2566 // When merging fonts with MergeMode=true: 2567 // - We can have multiple input fonts writing into a same destination font. 2568 // - dst_font->ConfigData is != from cfg which is our source configuration. 2569 ImFontConfig& cfg = atlas->ConfigData[src_i]; 2570 ImFont* dst_font = cfg.DstFont; 2571 2572 const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels); 2573 int unscaled_ascent, unscaled_descent, unscaled_line_gap; 2574 stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap); 2575 2576 const float ascent = ImFloor(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1)); 2577 const float descent = ImFloor(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1)); 2578 ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent); 2579 const float font_off_x = cfg.GlyphOffset.x; 2580 const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent); 2581 2582 for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++) 2583 { 2584 // Register glyph 2585 const int codepoint = src_tmp.GlyphsList[glyph_i]; 2586 const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i]; 2587 stbtt_aligned_quad q; 2588 float unused_x = 0.0f, unused_y = 0.0f; 2589 stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0); 2590 dst_font->AddGlyph(&cfg, (ImWchar)codepoint, q.x0 + font_off_x, q.y0 + font_off_y, q.x1 + font_off_x, q.y1 + font_off_y, q.s0, q.t0, q.s1, q.t1, pc.xadvance); 2591 } 2592 } 2593 2594 // Cleanup 2595 src_tmp_array.clear_destruct(); 2596 2597 ImFontAtlasBuildFinish(atlas); 2598 return true; 2599 } 2600 2601 const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype() 2602 { 2603 static ImFontBuilderIO io; 2604 io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype; 2605 return &io; 2606 } 2607 2608 #endif // IMGUI_ENABLE_STB_TRUETYPE 2609 2610 void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent) 2611 { 2612 if (!font_config->MergeMode) 2613 { 2614 font->ClearOutputData(); 2615 font->FontSize = font_config->SizePixels; 2616 font->ConfigData = font_config; 2617 font->ConfigDataCount = 0; 2618 font->ContainerAtlas = atlas; 2619 font->Ascent = ascent; 2620 font->Descent = descent; 2621 } 2622 font->ConfigDataCount++; 2623 } 2624 2625 void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque) 2626 { 2627 stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque; 2628 IM_ASSERT(pack_context != NULL); 2629 2630 ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects; 2631 IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong. 2632 2633 ImVector<stbrp_rect> pack_rects; 2634 pack_rects.resize(user_rects.Size); 2635 memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes()); 2636 for (int i = 0; i < user_rects.Size; i++) 2637 { 2638 pack_rects[i].w = user_rects[i].Width; 2639 pack_rects[i].h = user_rects[i].Height; 2640 } 2641 stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size); 2642 for (int i = 0; i < pack_rects.Size; i++) 2643 if (pack_rects[i].was_packed) 2644 { 2645 user_rects[i].X = (unsigned short)pack_rects[i].x; 2646 user_rects[i].Y = (unsigned short)pack_rects[i].y; 2647 IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height); 2648 atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h); 2649 } 2650 } 2651 2652 void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value) 2653 { 2654 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth); 2655 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight); 2656 unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth); 2657 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w) 2658 for (int off_x = 0; off_x < w; off_x++) 2659 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00; 2660 } 2661 2662 void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value) 2663 { 2664 IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth); 2665 IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight); 2666 unsigned int* out_pixel = atlas->TexPixelsRGBA32 + x + (y * atlas->TexWidth); 2667 for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w) 2668 for (int off_x = 0; off_x < w; off_x++) 2669 out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : IM_COL32_BLACK_TRANS; 2670 } 2671 2672 static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas) 2673 { 2674 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors); 2675 IM_ASSERT(r->IsPacked()); 2676 2677 const int w = atlas->TexWidth; 2678 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors)) 2679 { 2680 // Render/copy pixels 2681 IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H); 2682 const int x_for_white = r->X; 2683 const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1; 2684 if (atlas->TexPixelsAlpha8 != NULL) 2685 { 2686 ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF); 2687 ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF); 2688 } 2689 else 2690 { 2691 ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE); 2692 ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE); 2693 } 2694 } 2695 else 2696 { 2697 // Render 4 white pixels 2698 IM_ASSERT(r->Width == 2 && r->Height == 2); 2699 const int offset = (int)r->X + (int)r->Y * w; 2700 if (atlas->TexPixelsAlpha8 != NULL) 2701 { 2702 atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF; 2703 } 2704 else 2705 { 2706 atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE; 2707 } 2708 } 2709 atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y); 2710 } 2711 2712 static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas) 2713 { 2714 if (atlas->Flags & ImFontAtlasFlags_NoBakedLines) 2715 return; 2716 2717 // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them 2718 ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines); 2719 IM_ASSERT(r->IsPacked()); 2720 for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row 2721 { 2722 // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle 2723 unsigned int y = n; 2724 unsigned int line_width = n; 2725 unsigned int pad_left = (r->Width - line_width) / 2; 2726 unsigned int pad_right = r->Width - (pad_left + line_width); 2727 2728 // Write each slice 2729 IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels 2730 if (atlas->TexPixelsAlpha8 != NULL) 2731 { 2732 unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)]; 2733 for (unsigned int i = 0; i < pad_left; i++) 2734 *(write_ptr + i) = 0x00; 2735 2736 for (unsigned int i = 0; i < line_width; i++) 2737 *(write_ptr + pad_left + i) = 0xFF; 2738 2739 for (unsigned int i = 0; i < pad_right; i++) 2740 *(write_ptr + pad_left + line_width + i) = 0x00; 2741 } 2742 else 2743 { 2744 unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)]; 2745 for (unsigned int i = 0; i < pad_left; i++) 2746 *(write_ptr + i) = IM_COL32(255, 255, 255, 0); 2747 2748 for (unsigned int i = 0; i < line_width; i++) 2749 *(write_ptr + pad_left + i) = IM_COL32_WHITE; 2750 2751 for (unsigned int i = 0; i < pad_right; i++) 2752 *(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0); 2753 } 2754 2755 // Calculate UVs for this line 2756 ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale; 2757 ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale; 2758 float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts 2759 atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v); 2760 } 2761 } 2762 2763 // Note: this is called / shared by both the stb_truetype and the FreeType builder 2764 void ImFontAtlasBuildInit(ImFontAtlas* atlas) 2765 { 2766 // Register texture region for mouse cursors or standard white pixels 2767 if (atlas->PackIdMouseCursors < 0) 2768 { 2769 if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors)) 2770 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H); 2771 else 2772 atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2); 2773 } 2774 2775 // Register texture region for thick lines 2776 // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row 2777 if (atlas->PackIdLines < 0) 2778 { 2779 if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines)) 2780 atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1); 2781 } 2782 } 2783 2784 // This is called/shared by both the stb_truetype and the FreeType builder. 2785 void ImFontAtlasBuildFinish(ImFontAtlas* atlas) 2786 { 2787 // Render into our custom data blocks 2788 IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL); 2789 ImFontAtlasBuildRenderDefaultTexData(atlas); 2790 ImFontAtlasBuildRenderLinesTexData(atlas); 2791 2792 // Register custom rectangle glyphs 2793 for (int i = 0; i < atlas->CustomRects.Size; i++) 2794 { 2795 const ImFontAtlasCustomRect* r = &atlas->CustomRects[i]; 2796 if (r->Font == NULL || r->GlyphID == 0) 2797 continue; 2798 2799 // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH 2800 IM_ASSERT(r->Font->ContainerAtlas == atlas); 2801 ImVec2 uv0, uv1; 2802 atlas->CalcCustomRectUV(r, &uv0, &uv1); 2803 r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX); 2804 } 2805 2806 // Build all fonts lookup tables 2807 for (int i = 0; i < atlas->Fonts.Size; i++) 2808 if (atlas->Fonts[i]->DirtyLookupTables) 2809 atlas->Fonts[i]->BuildLookupTable(); 2810 2811 atlas->TexReady = true; 2812 } 2813 2814 // Retrieve list of range (2 int per range, values are inclusive) 2815 const ImWchar* ImFontAtlas::GetGlyphRangesDefault() 2816 { 2817 static const ImWchar ranges[] = 2818 { 2819 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2820 0, 2821 }; 2822 return &ranges[0]; 2823 } 2824 2825 const ImWchar* ImFontAtlas::GetGlyphRangesGreek() 2826 { 2827 static const ImWchar ranges[] = 2828 { 2829 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2830 0x0370, 0x03FF, // Greek and Coptic 2831 0, 2832 }; 2833 return &ranges[0]; 2834 } 2835 2836 const ImWchar* ImFontAtlas::GetGlyphRangesKorean() 2837 { 2838 static const ImWchar ranges[] = 2839 { 2840 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2841 0x3131, 0x3163, // Korean alphabets 2842 0xAC00, 0xD7A3, // Korean characters 2843 0xFFFD, 0xFFFD, // Invalid 2844 0, 2845 }; 2846 return &ranges[0]; 2847 } 2848 2849 const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull() 2850 { 2851 static const ImWchar ranges[] = 2852 { 2853 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2854 0x2000, 0x206F, // General Punctuation 2855 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 2856 0x31F0, 0x31FF, // Katakana Phonetic Extensions 2857 0xFF00, 0xFFEF, // Half-width characters 2858 0xFFFD, 0xFFFD, // Invalid 2859 0x4e00, 0x9FAF, // CJK Ideograms 2860 0, 2861 }; 2862 return &ranges[0]; 2863 } 2864 2865 static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges) 2866 { 2867 for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2) 2868 { 2869 out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]); 2870 base_codepoint += accumulative_offsets[n]; 2871 } 2872 out_ranges[0] = 0; 2873 } 2874 2875 //------------------------------------------------------------------------- 2876 // [SECTION] ImFontAtlas glyph ranges helpers 2877 //------------------------------------------------------------------------- 2878 2879 const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon() 2880 { 2881 // Store 2500 regularly used characters for Simplified Chinese. 2882 // Sourced from https://zh.wiktionary.org/wiki/%E9%99%84%E5%BD%95:%E7%8E%B0%E4%BB%A3%E6%B1%89%E8%AF%AD%E5%B8%B8%E7%94%A8%E5%AD%97%E8%A1%A8 2883 // This table covers 97.97% of all characters used during the month in July, 1987. 2884 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters. 2885 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.) 2886 static const short accumulative_offsets_from_0x4E00[] = 2887 { 2888 0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2, 2889 1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4, 2890 2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1, 2891 1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2, 2892 3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6, 2893 1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1, 2894 1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3, 2895 2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4, 2896 27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12, 2897 3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1, 2898 1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23, 2899 176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6, 2900 5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6, 2901 1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1, 2902 6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5, 2903 2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15, 2904 2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6, 2905 2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4, 2906 3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5, 2907 3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2, 2908 3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16, 2909 1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31, 2910 140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7, 2911 5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2, 2912 2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13, 2913 4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3, 2914 2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4, 2915 4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1, 2916 3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3, 2917 3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11, 2918 2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9, 2919 5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2, 2920 3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3, 2921 1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12, 2922 4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8, 2923 4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5, 2924 26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1, 2925 3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5, 2926 2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6, 2927 10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6 2928 }; 2929 static ImWchar base_ranges[] = // not zero-terminated 2930 { 2931 0x0020, 0x00FF, // Basic Latin + Latin Supplement 2932 0x2000, 0x206F, // General Punctuation 2933 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 2934 0x31F0, 0x31FF, // Katakana Phonetic Extensions 2935 0xFF00, 0xFFEF, // Half-width characters 2936 0xFFFD, 0xFFFD // Invalid 2937 }; 2938 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 }; 2939 if (!full_ranges[0]) 2940 { 2941 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 2942 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges)); 2943 } 2944 return &full_ranges[0]; 2945 } 2946 2947 const ImWchar* ImFontAtlas::GetGlyphRangesJapanese() 2948 { 2949 // 2999 ideograms code points for Japanese 2950 // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points 2951 // - 863 Jinmeiyo (meaning "for personal name") Kanji code points 2952 // - Sourced from official information provided by the government agencies of Japan: 2953 // - List of Joyo Kanji by the Agency for Cultural Affairs 2954 // - https://www.bunka.go.jp/kokugo_nihongo/sisaku/joho/joho/kijun/naikaku/kanji/ 2955 // - List of Jinmeiyo Kanji by the Ministry of Justice 2956 // - http://www.moj.go.jp/MINJI/minji86.html 2957 // - Available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0). 2958 // - https://creativecommons.org/licenses/by/4.0/legalcode 2959 // - You can generate this code by the script at: 2960 // - https://github.com/vaiorabbit/everyday_use_kanji 2961 // - References: 2962 // - List of Joyo Kanji 2963 // - (Wikipedia) https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji 2964 // - List of Jinmeiyo Kanji 2965 // - (Wikipedia) https://en.wikipedia.org/wiki/Jinmeiy%C5%8D_kanji 2966 // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details. 2967 // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters. 2968 // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.) 2969 static const short accumulative_offsets_from_0x4E00[] = 2970 { 2971 0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1, 2972 1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3, 2973 2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8, 2974 2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5, 2975 2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1, 2976 1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30, 2977 2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3, 2978 13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4, 2979 5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14, 2980 2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1, 2981 1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1, 2982 7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1, 2983 1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1, 2984 6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2, 2985 10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7, 2986 2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5, 2987 3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1, 2988 6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7, 2989 4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2, 2990 4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5, 2991 1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6, 2992 12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2, 2993 1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16, 2994 22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11, 2995 2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18, 2996 18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9, 2997 14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3, 2998 1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6, 2999 40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1, 3000 12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8, 3001 2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1, 3002 1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10, 3003 1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5, 3004 3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2, 3005 14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5, 3006 12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1, 3007 2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5, 3008 1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4, 3009 3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7, 3010 2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5, 3011 13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13, 3012 18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21, 3013 37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1, 3014 5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38, 3015 32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4, 3016 1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4, 3017 4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1, 3018 3,2,1,1,1,1,2,1,1, 3019 }; 3020 static ImWchar base_ranges[] = // not zero-terminated 3021 { 3022 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3023 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana 3024 0x31F0, 0x31FF, // Katakana Phonetic Extensions 3025 0xFF00, 0xFFEF, // Half-width characters 3026 0xFFFD, 0xFFFD // Invalid 3027 }; 3028 static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 }; 3029 if (!full_ranges[0]) 3030 { 3031 memcpy(full_ranges, base_ranges, sizeof(base_ranges)); 3032 UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges)); 3033 } 3034 return &full_ranges[0]; 3035 } 3036 3037 const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic() 3038 { 3039 static const ImWchar ranges[] = 3040 { 3041 0x0020, 0x00FF, // Basic Latin + Latin Supplement 3042 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement 3043 0x2DE0, 0x2DFF, // Cyrillic Extended-A 3044 0xA640, 0xA69F, // Cyrillic Extended-B 3045 0, 3046 }; 3047 return &ranges[0]; 3048 } 3049 3050 const ImWchar* ImFontAtlas::GetGlyphRangesThai() 3051 { 3052 static const ImWchar ranges[] = 3053 { 3054 0x0020, 0x00FF, // Basic Latin 3055 0x2010, 0x205E, // Punctuations 3056 0x0E00, 0x0E7F, // Thai 3057 0, 3058 }; 3059 return &ranges[0]; 3060 } 3061 3062 const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese() 3063 { 3064 static const ImWchar ranges[] = 3065 { 3066 0x0020, 0x00FF, // Basic Latin 3067 0x0102, 0x0103, 3068 0x0110, 0x0111, 3069 0x0128, 0x0129, 3070 0x0168, 0x0169, 3071 0x01A0, 0x01A1, 3072 0x01AF, 0x01B0, 3073 0x1EA0, 0x1EF9, 3074 0, 3075 }; 3076 return &ranges[0]; 3077 } 3078 3079 //----------------------------------------------------------------------------- 3080 // [SECTION] ImFontGlyphRangesBuilder 3081 //----------------------------------------------------------------------------- 3082 3083 void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end) 3084 { 3085 while (text_end ? (text < text_end) : *text) 3086 { 3087 unsigned int c = 0; 3088 int c_len = ImTextCharFromUtf8(&c, text, text_end); 3089 text += c_len; 3090 if (c_len == 0) 3091 break; 3092 AddChar((ImWchar)c); 3093 } 3094 } 3095 3096 void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges) 3097 { 3098 for (; ranges[0]; ranges += 2) 3099 for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560 3100 AddChar((ImWchar)c); 3101 } 3102 3103 void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges) 3104 { 3105 const int max_codepoint = IM_UNICODE_CODEPOINT_MAX; 3106 for (int n = 0; n <= max_codepoint; n++) 3107 if (GetBit(n)) 3108 { 3109 out_ranges->push_back((ImWchar)n); 3110 while (n < max_codepoint && GetBit(n + 1)) 3111 n++; 3112 out_ranges->push_back((ImWchar)n); 3113 } 3114 out_ranges->push_back(0); 3115 } 3116 3117 //----------------------------------------------------------------------------- 3118 // [SECTION] ImFont 3119 //----------------------------------------------------------------------------- 3120 3121 ImFont::ImFont() 3122 { 3123 FontSize = 0.0f; 3124 FallbackAdvanceX = 0.0f; 3125 FallbackChar = (ImWchar)-1; 3126 EllipsisChar = (ImWchar)-1; 3127 EllipsisWidth = EllipsisCharStep = 0.0f; 3128 EllipsisCharCount = 0; 3129 FallbackGlyph = NULL; 3130 ContainerAtlas = NULL; 3131 ConfigData = NULL; 3132 ConfigDataCount = 0; 3133 DirtyLookupTables = false; 3134 Scale = 1.0f; 3135 Ascent = Descent = 0.0f; 3136 MetricsTotalSurface = 0; 3137 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap)); 3138 } 3139 3140 ImFont::~ImFont() 3141 { 3142 ClearOutputData(); 3143 } 3144 3145 void ImFont::ClearOutputData() 3146 { 3147 FontSize = 0.0f; 3148 FallbackAdvanceX = 0.0f; 3149 Glyphs.clear(); 3150 IndexAdvanceX.clear(); 3151 IndexLookup.clear(); 3152 FallbackGlyph = NULL; 3153 ContainerAtlas = NULL; 3154 DirtyLookupTables = true; 3155 Ascent = Descent = 0.0f; 3156 MetricsTotalSurface = 0; 3157 } 3158 3159 static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count) 3160 { 3161 for (int n = 0; n < candidate_chars_count; n++) 3162 if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL) 3163 return candidate_chars[n]; 3164 return (ImWchar)-1; 3165 } 3166 3167 void ImFont::BuildLookupTable() 3168 { 3169 int max_codepoint = 0; 3170 for (int i = 0; i != Glyphs.Size; i++) 3171 max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint); 3172 3173 // Build lookup table 3174 IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved 3175 IndexAdvanceX.clear(); 3176 IndexLookup.clear(); 3177 DirtyLookupTables = false; 3178 memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap)); 3179 GrowIndex(max_codepoint + 1); 3180 for (int i = 0; i < Glyphs.Size; i++) 3181 { 3182 int codepoint = (int)Glyphs[i].Codepoint; 3183 IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX; 3184 IndexLookup[codepoint] = (ImWchar)i; 3185 3186 // Mark 4K page as used 3187 const int page_n = codepoint / 4096; 3188 Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7); 3189 } 3190 3191 // Create a glyph to handle TAB 3192 // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?) 3193 if (FindGlyph((ImWchar)' ')) 3194 { 3195 if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky) 3196 Glyphs.resize(Glyphs.Size + 1); 3197 ImFontGlyph& tab_glyph = Glyphs.back(); 3198 tab_glyph = *FindGlyph((ImWchar)' '); 3199 tab_glyph.Codepoint = '\t'; 3200 tab_glyph.AdvanceX *= IM_TABSIZE; 3201 IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX; 3202 IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1); 3203 } 3204 3205 // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons) 3206 SetGlyphVisible((ImWchar)' ', false); 3207 SetGlyphVisible((ImWchar)'\t', false); 3208 3209 // Ellipsis character is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis). 3210 // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character. 3211 // FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots. 3212 const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 }; 3213 const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E }; 3214 if (EllipsisChar == (ImWchar)-1) 3215 EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars)); 3216 const ImWchar dot_char = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars)); 3217 if (EllipsisChar != (ImWchar)-1) 3218 { 3219 EllipsisCharCount = 1; 3220 EllipsisWidth = EllipsisCharStep = FindGlyph(EllipsisChar)->X1; 3221 } 3222 else if (dot_char != (ImWchar)-1) 3223 { 3224 const ImFontGlyph* glyph = FindGlyph(dot_char); 3225 EllipsisChar = dot_char; 3226 EllipsisCharCount = 3; 3227 EllipsisCharStep = (glyph->X1 - glyph->X0) + 1.0f; 3228 EllipsisWidth = EllipsisCharStep * 3.0f - 1.0f; 3229 } 3230 3231 // Setup fallback character 3232 const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' }; 3233 FallbackGlyph = FindGlyphNoFallback(FallbackChar); 3234 if (FallbackGlyph == NULL) 3235 { 3236 FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars)); 3237 FallbackGlyph = FindGlyphNoFallback(FallbackChar); 3238 if (FallbackGlyph == NULL) 3239 { 3240 FallbackGlyph = &Glyphs.back(); 3241 FallbackChar = (ImWchar)FallbackGlyph->Codepoint; 3242 } 3243 } 3244 3245 FallbackAdvanceX = FallbackGlyph->AdvanceX; 3246 for (int i = 0; i < max_codepoint + 1; i++) 3247 if (IndexAdvanceX[i] < 0.0f) 3248 IndexAdvanceX[i] = FallbackAdvanceX; 3249 } 3250 3251 // API is designed this way to avoid exposing the 4K page size 3252 // e.g. use with IsGlyphRangeUnused(0, 255) 3253 bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last) 3254 { 3255 unsigned int page_begin = (c_begin / 4096); 3256 unsigned int page_last = (c_last / 4096); 3257 for (unsigned int page_n = page_begin; page_n <= page_last; page_n++) 3258 if ((page_n >> 3) < sizeof(Used4kPagesMap)) 3259 if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7))) 3260 return false; 3261 return true; 3262 } 3263 3264 void ImFont::SetGlyphVisible(ImWchar c, bool visible) 3265 { 3266 if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c)) 3267 glyph->Visible = visible ? 1 : 0; 3268 } 3269 3270 void ImFont::GrowIndex(int new_size) 3271 { 3272 IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size); 3273 if (new_size <= IndexLookup.Size) 3274 return; 3275 IndexAdvanceX.resize(new_size, -1.0f); 3276 IndexLookup.resize(new_size, (ImWchar)-1); 3277 } 3278 3279 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero. 3280 // Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis). 3281 // 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font. 3282 void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x) 3283 { 3284 if (cfg != NULL) 3285 { 3286 // Clamp & recenter if needed 3287 const float advance_x_original = advance_x; 3288 advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX); 3289 if (advance_x != advance_x_original) 3290 { 3291 float char_off_x = cfg->PixelSnapH ? ImFloor((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f; 3292 x0 += char_off_x; 3293 x1 += char_off_x; 3294 } 3295 3296 // Snap to pixel 3297 if (cfg->PixelSnapH) 3298 advance_x = IM_ROUND(advance_x); 3299 3300 // Bake spacing 3301 advance_x += cfg->GlyphExtraSpacing.x; 3302 } 3303 3304 Glyphs.resize(Glyphs.Size + 1); 3305 ImFontGlyph& glyph = Glyphs.back(); 3306 glyph.Codepoint = (unsigned int)codepoint; 3307 glyph.Visible = (x0 != x1) && (y0 != y1); 3308 glyph.Colored = false; 3309 glyph.X0 = x0; 3310 glyph.Y0 = y0; 3311 glyph.X1 = x1; 3312 glyph.Y1 = y1; 3313 glyph.U0 = u0; 3314 glyph.V0 = v0; 3315 glyph.U1 = u1; 3316 glyph.V1 = v1; 3317 glyph.AdvanceX = advance_x; 3318 3319 // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round) 3320 // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling. 3321 float pad = ContainerAtlas->TexGlyphPadding + 0.99f; 3322 DirtyLookupTables = true; 3323 MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad); 3324 } 3325 3326 void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst) 3327 { 3328 IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function. 3329 unsigned int index_size = (unsigned int)IndexLookup.Size; 3330 3331 if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists 3332 return; 3333 if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op 3334 return; 3335 3336 GrowIndex(dst + 1); 3337 IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1; 3338 IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f; 3339 } 3340 3341 const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const 3342 { 3343 if (c >= (size_t)IndexLookup.Size) 3344 return FallbackGlyph; 3345 const ImWchar i = IndexLookup.Data[c]; 3346 if (i == (ImWchar)-1) 3347 return FallbackGlyph; 3348 return &Glyphs.Data[i]; 3349 } 3350 3351 const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const 3352 { 3353 if (c >= (size_t)IndexLookup.Size) 3354 return NULL; 3355 const ImWchar i = IndexLookup.Data[c]; 3356 if (i == (ImWchar)-1) 3357 return NULL; 3358 return &Glyphs.Data[i]; 3359 } 3360 3361 // Wrapping skips upcoming blanks 3362 static inline const char* CalcWordWrapNextLineStartA(const char* text, const char* text_end) 3363 { 3364 while (text < text_end && ImCharIsBlankA(*text)) 3365 text++; 3366 if (*text == '\n') 3367 text++; 3368 return text; 3369 } 3370 3371 // Simple word-wrapping for English, not full-featured. Please submit failing cases! 3372 // This will return the next location to wrap from. If no wrapping if necessary, this will fast-forward to e.g. text_end. 3373 // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.) 3374 const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const 3375 { 3376 // For references, possible wrap point marked with ^ 3377 // "aaa bbb, ccc,ddd. eee fff. ggg!" 3378 // ^ ^ ^ ^ ^__ ^ ^ 3379 3380 // List of hardcoded separators: .,;!?'" 3381 3382 // Skip extra blanks after a line returns (that includes not counting them in width computation) 3383 // e.g. "Hello world" --> "Hello" "World" 3384 3385 // Cut words that cannot possibly fit within one line. 3386 // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish" 3387 float line_width = 0.0f; 3388 float word_width = 0.0f; 3389 float blank_width = 0.0f; 3390 wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters 3391 3392 const char* word_end = text; 3393 const char* prev_word_end = NULL; 3394 bool inside_word = true; 3395 3396 const char* s = text; 3397 IM_ASSERT(text_end != NULL); 3398 while (s < text_end) 3399 { 3400 unsigned int c = (unsigned int)*s; 3401 const char* next_s; 3402 if (c < 0x80) 3403 next_s = s + 1; 3404 else 3405 next_s = s + ImTextCharFromUtf8(&c, s, text_end); 3406 3407 if (c < 32) 3408 { 3409 if (c == '\n') 3410 { 3411 line_width = word_width = blank_width = 0.0f; 3412 inside_word = true; 3413 s = next_s; 3414 continue; 3415 } 3416 if (c == '\r') 3417 { 3418 s = next_s; 3419 continue; 3420 } 3421 } 3422 3423 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX); 3424 if (ImCharIsBlankW(c)) 3425 { 3426 if (inside_word) 3427 { 3428 line_width += blank_width; 3429 blank_width = 0.0f; 3430 word_end = s; 3431 } 3432 blank_width += char_width; 3433 inside_word = false; 3434 } 3435 else 3436 { 3437 word_width += char_width; 3438 if (inside_word) 3439 { 3440 word_end = next_s; 3441 } 3442 else 3443 { 3444 prev_word_end = word_end; 3445 line_width += word_width + blank_width; 3446 word_width = blank_width = 0.0f; 3447 } 3448 3449 // Allow wrapping after punctuation. 3450 inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"'); 3451 } 3452 3453 // We ignore blank width at the end of the line (they can be skipped) 3454 if (line_width + word_width > wrap_width) 3455 { 3456 // Words that cannot possibly fit within an entire line will be cut anywhere. 3457 if (word_width < wrap_width) 3458 s = prev_word_end ? prev_word_end : word_end; 3459 break; 3460 } 3461 3462 s = next_s; 3463 } 3464 3465 // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity. 3466 // +1 may not be a character start point in UTF-8 but it's ok because caller loops use (text >= word_wrap_eol). 3467 if (s == text && text < text_end) 3468 return s + 1; 3469 return s; 3470 } 3471 3472 ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const 3473 { 3474 if (!text_end) 3475 text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this. 3476 3477 const float line_height = size; 3478 const float scale = size / FontSize; 3479 3480 ImVec2 text_size = ImVec2(0, 0); 3481 float line_width = 0.0f; 3482 3483 const bool word_wrap_enabled = (wrap_width > 0.0f); 3484 const char* word_wrap_eol = NULL; 3485 3486 const char* s = text_begin; 3487 while (s < text_end) 3488 { 3489 if (word_wrap_enabled) 3490 { 3491 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature. 3492 if (!word_wrap_eol) 3493 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width); 3494 3495 if (s >= word_wrap_eol) 3496 { 3497 if (text_size.x < line_width) 3498 text_size.x = line_width; 3499 text_size.y += line_height; 3500 line_width = 0.0f; 3501 word_wrap_eol = NULL; 3502 s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks 3503 continue; 3504 } 3505 } 3506 3507 // Decode and advance source 3508 const char* prev_s = s; 3509 unsigned int c = (unsigned int)*s; 3510 if (c < 0x80) 3511 s += 1; 3512 else 3513 s += ImTextCharFromUtf8(&c, s, text_end); 3514 3515 if (c < 32) 3516 { 3517 if (c == '\n') 3518 { 3519 text_size.x = ImMax(text_size.x, line_width); 3520 text_size.y += line_height; 3521 line_width = 0.0f; 3522 continue; 3523 } 3524 if (c == '\r') 3525 continue; 3526 } 3527 3528 const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale; 3529 if (line_width + char_width >= max_width) 3530 { 3531 s = prev_s; 3532 break; 3533 } 3534 3535 line_width += char_width; 3536 } 3537 3538 if (text_size.x < line_width) 3539 text_size.x = line_width; 3540 3541 if (line_width > 0 || text_size.y == 0.0f) 3542 text_size.y += line_height; 3543 3544 if (remaining) 3545 *remaining = s; 3546 3547 return text_size; 3548 } 3549 3550 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound. 3551 void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const 3552 { 3553 const ImFontGlyph* glyph = FindGlyph(c); 3554 if (!glyph || !glyph->Visible) 3555 return; 3556 if (glyph->Colored) 3557 col |= ~IM_COL32_A_MASK; 3558 float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f; 3559 float x = IM_FLOOR(pos.x); 3560 float y = IM_FLOOR(pos.y); 3561 draw_list->PrimReserve(6, 4); 3562 draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col); 3563 } 3564 3565 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound. 3566 void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const 3567 { 3568 if (!text_end) 3569 text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls. 3570 3571 // Align to be pixel perfect 3572 float x = IM_FLOOR(pos.x); 3573 float y = IM_FLOOR(pos.y); 3574 if (y > clip_rect.w) 3575 return; 3576 3577 const float start_x = x; 3578 const float scale = size / FontSize; 3579 const float line_height = FontSize * scale; 3580 const bool word_wrap_enabled = (wrap_width > 0.0f); 3581 3582 // Fast-forward to first visible line 3583 const char* s = text_begin; 3584 if (y + line_height < clip_rect.y) 3585 while (y + line_height < clip_rect.y && s < text_end) 3586 { 3587 const char* line_end = (const char*)memchr(s, '\n', text_end - s); 3588 if (word_wrap_enabled) 3589 { 3590 // FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPositionA(). 3591 // If the specs for CalcWordWrapPositionA() were reworked to optionally return on \n we could combine both. 3592 // However it is still better than nothing performing the fast-forward! 3593 s = CalcWordWrapPositionA(scale, s, line_end ? line_end : text_end, wrap_width); 3594 s = CalcWordWrapNextLineStartA(s, text_end); 3595 } 3596 else 3597 { 3598 s = line_end ? line_end + 1 : text_end; 3599 } 3600 y += line_height; 3601 } 3602 3603 // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve() 3604 // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm) 3605 if (text_end - s > 10000 && !word_wrap_enabled) 3606 { 3607 const char* s_end = s; 3608 float y_end = y; 3609 while (y_end < clip_rect.w && s_end < text_end) 3610 { 3611 s_end = (const char*)memchr(s_end, '\n', text_end - s_end); 3612 s_end = s_end ? s_end + 1 : text_end; 3613 y_end += line_height; 3614 } 3615 text_end = s_end; 3616 } 3617 if (s == text_end) 3618 return; 3619 3620 // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized) 3621 const int vtx_count_max = (int)(text_end - s) * 4; 3622 const int idx_count_max = (int)(text_end - s) * 6; 3623 const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max; 3624 draw_list->PrimReserve(idx_count_max, vtx_count_max); 3625 ImDrawVert* vtx_write = draw_list->_VtxWritePtr; 3626 ImDrawIdx* idx_write = draw_list->_IdxWritePtr; 3627 unsigned int vtx_index = draw_list->_VtxCurrentIdx; 3628 3629 const ImU32 col_untinted = col | ~IM_COL32_A_MASK; 3630 const char* word_wrap_eol = NULL; 3631 3632 while (s < text_end) 3633 { 3634 if (word_wrap_enabled) 3635 { 3636 // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature. 3637 if (!word_wrap_eol) 3638 word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - start_x)); 3639 3640 if (s >= word_wrap_eol) 3641 { 3642 x = start_x; 3643 y += line_height; 3644 word_wrap_eol = NULL; 3645 s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks 3646 continue; 3647 } 3648 } 3649 3650 // Decode and advance source 3651 unsigned int c = (unsigned int)*s; 3652 if (c < 0x80) 3653 s += 1; 3654 else 3655 s += ImTextCharFromUtf8(&c, s, text_end); 3656 3657 if (c < 32) 3658 { 3659 if (c == '\n') 3660 { 3661 x = start_x; 3662 y += line_height; 3663 if (y > clip_rect.w) 3664 break; // break out of main loop 3665 continue; 3666 } 3667 if (c == '\r') 3668 continue; 3669 } 3670 3671 const ImFontGlyph* glyph = FindGlyph((ImWchar)c); 3672 if (glyph == NULL) 3673 continue; 3674 3675 float char_width = glyph->AdvanceX * scale; 3676 if (glyph->Visible) 3677 { 3678 // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w 3679 float x1 = x + glyph->X0 * scale; 3680 float x2 = x + glyph->X1 * scale; 3681 float y1 = y + glyph->Y0 * scale; 3682 float y2 = y + glyph->Y1 * scale; 3683 if (x1 <= clip_rect.z && x2 >= clip_rect.x) 3684 { 3685 // Render a character 3686 float u1 = glyph->U0; 3687 float v1 = glyph->V0; 3688 float u2 = glyph->U1; 3689 float v2 = glyph->V1; 3690 3691 // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads. 3692 if (cpu_fine_clip) 3693 { 3694 if (x1 < clip_rect.x) 3695 { 3696 u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1); 3697 x1 = clip_rect.x; 3698 } 3699 if (y1 < clip_rect.y) 3700 { 3701 v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1); 3702 y1 = clip_rect.y; 3703 } 3704 if (x2 > clip_rect.z) 3705 { 3706 u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1); 3707 x2 = clip_rect.z; 3708 } 3709 if (y2 > clip_rect.w) 3710 { 3711 v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1); 3712 y2 = clip_rect.w; 3713 } 3714 if (y1 >= y2) 3715 { 3716 x += char_width; 3717 continue; 3718 } 3719 } 3720 3721 // Support for untinted glyphs 3722 ImU32 glyph_col = glyph->Colored ? col_untinted : col; 3723 3724 // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here: 3725 { 3726 vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1; 3727 vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1; 3728 vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2; 3729 vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2; 3730 idx_write[0] = (ImDrawIdx)(vtx_index); idx_write[1] = (ImDrawIdx)(vtx_index + 1); idx_write[2] = (ImDrawIdx)(vtx_index + 2); 3731 idx_write[3] = (ImDrawIdx)(vtx_index); idx_write[4] = (ImDrawIdx)(vtx_index + 2); idx_write[5] = (ImDrawIdx)(vtx_index + 3); 3732 vtx_write += 4; 3733 vtx_index += 4; 3734 idx_write += 6; 3735 } 3736 } 3737 } 3738 x += char_width; 3739 } 3740 3741 // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action. 3742 draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink() 3743 draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data); 3744 draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size); 3745 draw_list->_VtxWritePtr = vtx_write; 3746 draw_list->_IdxWritePtr = idx_write; 3747 draw_list->_VtxCurrentIdx = vtx_index; 3748 } 3749 3750 //----------------------------------------------------------------------------- 3751 // [SECTION] ImGui Internal Render Helpers 3752 //----------------------------------------------------------------------------- 3753 // Vaguely redesigned to stop accessing ImGui global state: 3754 // - RenderArrow() 3755 // - RenderBullet() 3756 // - RenderCheckMark() 3757 // - RenderArrowDockMenu() 3758 // - RenderArrowPointingAt() 3759 // - RenderRectFilledRangeH() 3760 // - RenderRectFilledWithHole() 3761 //----------------------------------------------------------------------------- 3762 // Function in need of a redesign (legacy mess) 3763 // - RenderColorRectWithAlphaCheckerboard() 3764 //----------------------------------------------------------------------------- 3765 3766 // Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state 3767 void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale) 3768 { 3769 const float h = draw_list->_Data->FontSize * 1.00f; 3770 float r = h * 0.40f * scale; 3771 ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale); 3772 3773 ImVec2 a, b, c; 3774 switch (dir) 3775 { 3776 case ImGuiDir_Up: 3777 case ImGuiDir_Down: 3778 if (dir == ImGuiDir_Up) r = -r; 3779 a = ImVec2(+0.000f, +0.750f) * r; 3780 b = ImVec2(-0.866f, -0.750f) * r; 3781 c = ImVec2(+0.866f, -0.750f) * r; 3782 break; 3783 case ImGuiDir_Left: 3784 case ImGuiDir_Right: 3785 if (dir == ImGuiDir_Left) r = -r; 3786 a = ImVec2(+0.750f, +0.000f) * r; 3787 b = ImVec2(-0.750f, +0.866f) * r; 3788 c = ImVec2(-0.750f, -0.866f) * r; 3789 break; 3790 case ImGuiDir_None: 3791 case ImGuiDir_COUNT: 3792 IM_ASSERT(0); 3793 break; 3794 } 3795 draw_list->AddTriangleFilled(center + a, center + b, center + c, col); 3796 } 3797 3798 void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col) 3799 { 3800 draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8); 3801 } 3802 3803 void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz) 3804 { 3805 float thickness = ImMax(sz / 5.0f, 1.0f); 3806 sz -= thickness * 0.5f; 3807 pos += ImVec2(thickness * 0.25f, thickness * 0.25f); 3808 3809 float third = sz / 3.0f; 3810 float bx = pos.x + third; 3811 float by = pos.y + sz - third * 0.5f; 3812 draw_list->PathLineTo(ImVec2(bx - third, by - third)); 3813 draw_list->PathLineTo(ImVec2(bx, by)); 3814 draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f)); 3815 draw_list->PathStroke(col, 0, thickness); 3816 } 3817 3818 // Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side. 3819 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col) 3820 { 3821 switch (direction) 3822 { 3823 case ImGuiDir_Left: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return; 3824 case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return; 3825 case ImGuiDir_Up: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return; 3826 case ImGuiDir_Down: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return; 3827 case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings 3828 } 3829 } 3830 3831 // This is less wide than RenderArrow() and we use in dock nodes instead of the regular RenderArrow() to denote a change of functionality, 3832 // and because the saved space means that the left-most tab label can stay at exactly the same position as the label of a loose window. 3833 void ImGui::RenderArrowDockMenu(ImDrawList* draw_list, ImVec2 p_min, float sz, ImU32 col) 3834 { 3835 draw_list->AddRectFilled(p_min + ImVec2(sz * 0.20f, sz * 0.15f), p_min + ImVec2(sz * 0.80f, sz * 0.30f), col); 3836 RenderArrowPointingAt(draw_list, p_min + ImVec2(sz * 0.50f, sz * 0.85f), ImVec2(sz * 0.30f, sz * 0.40f), ImGuiDir_Down, col); 3837 } 3838 3839 static inline float ImAcos01(float x) 3840 { 3841 if (x <= 0.0f) return IM_PI * 0.5f; 3842 if (x >= 1.0f) return 0.0f; 3843 return ImAcos(x); 3844 //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do. 3845 } 3846 3847 // FIXME: Cleanup and move code to ImDrawList. 3848 void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding) 3849 { 3850 if (x_end_norm == x_start_norm) 3851 return; 3852 if (x_start_norm > x_end_norm) 3853 ImSwap(x_start_norm, x_end_norm); 3854 3855 ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y); 3856 ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y); 3857 if (rounding == 0.0f) 3858 { 3859 draw_list->AddRectFilled(p0, p1, col, 0.0f); 3860 return; 3861 } 3862 3863 rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding); 3864 const float inv_rounding = 1.0f / rounding; 3865 const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding); 3866 const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding); 3867 const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return. 3868 const float x0 = ImMax(p0.x, rect.Min.x + rounding); 3869 if (arc0_b == arc0_e) 3870 { 3871 draw_list->PathLineTo(ImVec2(x0, p1.y)); 3872 draw_list->PathLineTo(ImVec2(x0, p0.y)); 3873 } 3874 else if (arc0_b == 0.0f && arc0_e == half_pi) 3875 { 3876 draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL 3877 draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR 3878 } 3879 else 3880 { 3881 draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL 3882 draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR 3883 } 3884 if (p1.x > rect.Min.x + rounding) 3885 { 3886 const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding); 3887 const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding); 3888 const float x1 = ImMin(p1.x, rect.Max.x - rounding); 3889 if (arc1_b == arc1_e) 3890 { 3891 draw_list->PathLineTo(ImVec2(x1, p0.y)); 3892 draw_list->PathLineTo(ImVec2(x1, p1.y)); 3893 } 3894 else if (arc1_b == 0.0f && arc1_e == half_pi) 3895 { 3896 draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR 3897 draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR 3898 } 3899 else 3900 { 3901 draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR 3902 draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR 3903 } 3904 } 3905 draw_list->PathFillConvex(col); 3906 } 3907 3908 void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding) 3909 { 3910 const bool fill_L = (inner.Min.x > outer.Min.x); 3911 const bool fill_R = (inner.Max.x < outer.Max.x); 3912 const bool fill_U = (inner.Min.y > outer.Min.y); 3913 const bool fill_D = (inner.Max.y < outer.Max.y); 3914 if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft)); 3915 if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight)); 3916 if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight)); 3917 if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight)); 3918 if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopLeft); 3919 if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopRight); 3920 if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomLeft); 3921 if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomRight); 3922 } 3923 3924 ImDrawFlags ImGui::CalcRoundingFlagsForRectInRect(const ImRect& r_in, const ImRect& r_outer, float threshold) 3925 { 3926 bool round_l = r_in.Min.x <= r_outer.Min.x + threshold; 3927 bool round_r = r_in.Max.x >= r_outer.Max.x - threshold; 3928 bool round_t = r_in.Min.y <= r_outer.Min.y + threshold; 3929 bool round_b = r_in.Max.y >= r_outer.Max.y - threshold; 3930 return ImDrawFlags_RoundCornersNone 3931 | ((round_t && round_l) ? ImDrawFlags_RoundCornersTopLeft : 0) | ((round_t && round_r) ? ImDrawFlags_RoundCornersTopRight : 0) 3932 | ((round_b && round_l) ? ImDrawFlags_RoundCornersBottomLeft : 0) | ((round_b && round_r) ? ImDrawFlags_RoundCornersBottomRight : 0); 3933 } 3934 3935 // Helper for ColorPicker4() 3936 // NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that. 3937 // Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether. 3938 // FIXME: uses ImGui::GetColorU32 3939 void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags) 3940 { 3941 if ((flags & ImDrawFlags_RoundCornersMask_) == 0) 3942 flags = ImDrawFlags_RoundCornersDefault_; 3943 if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF) 3944 { 3945 ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col)); 3946 ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col)); 3947 draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags); 3948 3949 int yi = 0; 3950 for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++) 3951 { 3952 float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y); 3953 if (y2 <= y1) 3954 continue; 3955 for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f) 3956 { 3957 float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x); 3958 if (x2 <= x1) 3959 continue; 3960 ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone; 3961 if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; } 3962 if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; } 3963 3964 // Combine flags 3965 cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags); 3966 draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags); 3967 } 3968 } 3969 } 3970 else 3971 { 3972 draw_list->AddRectFilled(p_min, p_max, col, rounding, flags); 3973 } 3974 } 3975 3976 //----------------------------------------------------------------------------- 3977 // [SECTION] Decompression code 3978 //----------------------------------------------------------------------------- 3979 // Compressed with stb_compress() then converted to a C array and encoded as base85. 3980 // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file. 3981 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size. 3982 // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h 3983 //----------------------------------------------------------------------------- 3984 3985 static unsigned int stb_decompress_length(const unsigned char *input) 3986 { 3987 return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11]; 3988 } 3989 3990 static unsigned char *stb__barrier_out_e, *stb__barrier_out_b; 3991 static const unsigned char *stb__barrier_in_b; 3992 static unsigned char *stb__dout; 3993 static void stb__match(const unsigned char *data, unsigned int length) 3994 { 3995 // INVERSE of memmove... write each byte before copying the next... 3996 IM_ASSERT(stb__dout + length <= stb__barrier_out_e); 3997 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; } 3998 if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; } 3999 while (length--) *stb__dout++ = *data++; 4000 } 4001 4002 static void stb__lit(const unsigned char *data, unsigned int length) 4003 { 4004 IM_ASSERT(stb__dout + length <= stb__barrier_out_e); 4005 if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; } 4006 if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; } 4007 memcpy(stb__dout, data, length); 4008 stb__dout += length; 4009 } 4010 4011 #define stb__in2(x) ((i[x] << 8) + i[(x)+1]) 4012 #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1)) 4013 #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1)) 4014 4015 static const unsigned char *stb_decompress_token(const unsigned char *i) 4016 { 4017 if (*i >= 0x20) { // use fewer if's for cases that expand small 4018 if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2; 4019 else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3; 4020 else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1); 4021 } else { // more ifs for cases that expand large, since overhead is amortized 4022 if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4; 4023 else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5; 4024 else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1); 4025 else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1); 4026 else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5; 4027 else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6; 4028 } 4029 return i; 4030 } 4031 4032 static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen) 4033 { 4034 const unsigned long ADLER_MOD = 65521; 4035 unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16; 4036 unsigned long blocklen = buflen % 5552; 4037 4038 unsigned long i; 4039 while (buflen) { 4040 for (i=0; i + 7 < blocklen; i += 8) { 4041 s1 += buffer[0], s2 += s1; 4042 s1 += buffer[1], s2 += s1; 4043 s1 += buffer[2], s2 += s1; 4044 s1 += buffer[3], s2 += s1; 4045 s1 += buffer[4], s2 += s1; 4046 s1 += buffer[5], s2 += s1; 4047 s1 += buffer[6], s2 += s1; 4048 s1 += buffer[7], s2 += s1; 4049 4050 buffer += 8; 4051 } 4052 4053 for (; i < blocklen; ++i) 4054 s1 += *buffer++, s2 += s1; 4055 4056 s1 %= ADLER_MOD, s2 %= ADLER_MOD; 4057 buflen -= blocklen; 4058 blocklen = 5552; 4059 } 4060 return (unsigned int)(s2 << 16) + (unsigned int)s1; 4061 } 4062 4063 static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/) 4064 { 4065 if (stb__in4(0) != 0x57bC0000) return 0; 4066 if (stb__in4(4) != 0) return 0; // error! stream is > 4GB 4067 const unsigned int olen = stb_decompress_length(i); 4068 stb__barrier_in_b = i; 4069 stb__barrier_out_e = output + olen; 4070 stb__barrier_out_b = output; 4071 i += 16; 4072 4073 stb__dout = output; 4074 for (;;) { 4075 const unsigned char *old_i = i; 4076 i = stb_decompress_token(i); 4077 if (i == old_i) { 4078 if (*i == 0x05 && i[1] == 0xfa) { 4079 IM_ASSERT(stb__dout == output + olen); 4080 if (stb__dout != output + olen) return 0; 4081 if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2)) 4082 return 0; 4083 return olen; 4084 } else { 4085 IM_ASSERT(0); /* NOTREACHED */ 4086 return 0; 4087 } 4088 } 4089 IM_ASSERT(stb__dout <= output + olen); 4090 if (stb__dout > output + olen) 4091 return 0; 4092 } 4093 } 4094 4095 //----------------------------------------------------------------------------- 4096 // [SECTION] Default font data (ProggyClean.ttf) 4097 //----------------------------------------------------------------------------- 4098 // ProggyClean.ttf 4099 // Copyright (c) 2004, 2005 Tristan Grimmer 4100 // MIT license (see License.txt in http://www.upperbounds.net/download/ProggyClean.ttf.zip) 4101 // Download and more information at http://upperbounds.net 4102 //----------------------------------------------------------------------------- 4103 // File: 'ProggyClean.ttf' (41208 bytes) 4104 // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding). 4105 // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size. 4106 //----------------------------------------------------------------------------- 4107 static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] = 4108 "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/" 4109 "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#" 4110 "`8ND>Qo#t'X#(v#Y9w0#1D$CIf;W'#pWUPXOuxXuU(H9M(1<q-UE31#^-V'8IRUo7Qf./L>=Ke$$'5F%)]0^#0X@U.a<r:QLtFsLcL6##lOj)#.Y5<-R&KgLwqJfLgN&;Q?gI^#DY2uL" 4111 "i@^rMl9t=cWq6##weg>$FBjVQTSDgEKnIS7EM9>ZY9w0#L;>>#Mx&4Mvt//L[MkA#W@lK.N'[0#7RL_&#w+F%HtG9M#XL`N&.,GM4Pg;-<nLENhvx>-VsM.M0rJfLH2eTM`*oJMHRC`N" 4112 "kfimM2J,W-jXS:)r0wK#@Fge$U>`w'N7G#$#fB#$E^$#:9:hk+eOe--6x)F7*E%?76%^GMHePW-Z5l'&GiF#$956:rS?dA#fiK:)Yr+`�j@'DbG&#^$PG.Ll+DNa<XCMKEV*N)LN/N" 4113 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"TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP" 4192 "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp" 4193 "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#"; 4194 4195 static const char* GetDefaultCompressedFontDataTTFBase85() 4196 { 4197 return proggy_clean_ttf_compressed_data_base85; 4198 } 4199 4200 #endif // #ifndef IMGUI_DISABLE