1  // Copyright (c) 2014-present The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <qt/networkstyle.h>
 6  
 7  #include <qt/guiconstants.h>
 8  
 9  #include <tinyformat.h>
10  #include <util/chaintype.h>
11  
12  #include <QApplication>
13  
14  static const struct {
15      const ChainType networkId;
16      const char *appName;
17      const int iconColorHueShift;
18      const int iconColorSaturationReduction;
19  } network_styles[] = {
20      {ChainType::MAIN, QAPP_APP_NAME_DEFAULT, 0, 0},
21      {ChainType::TESTNET, QAPP_APP_NAME_TESTNET, 70, 30},
22      {ChainType::TESTNET4, QAPP_APP_NAME_TESTNET4, 70, 30},
23      {ChainType::SIGNET, QAPP_APP_NAME_SIGNET, 35, 15},
24      {ChainType::REGTEST, QAPP_APP_NAME_REGTEST, 160, 30},
25  };
26  
27  // titleAddText needs to be const char* for tr()
28  NetworkStyle::NetworkStyle(const QString &_appName, const int iconColorHueShift, const int iconColorSaturationReduction, const char *_titleAddText):
29      appName(_appName),
30      titleAddText(qApp->translate("SplashScreen", _titleAddText))
31  {
32      // load pixmap
33      QPixmap pixmap(":/icons/bitcoin");
34  
35      if(iconColorHueShift != 0 && iconColorSaturationReduction != 0)
36      {
37          // generate QImage from QPixmap
38          QImage img = pixmap.toImage();
39  
40          int h,s,l,a;
41  
42          // traverse though lines
43          for(int y=0;y<img.height();y++)
44          {
45              QRgb *scL = reinterpret_cast< QRgb *>( img.scanLine( y ) );
46  
47              // loop through pixels
48              for(int x=0;x<img.width();x++)
49              {
50                  // preserve alpha because QColor::getHsl doesn't return the alpha value
51                  a = qAlpha(scL[x]);
52                  QColor col(scL[x]);
53  
54                  // get hue value
55                  col.getHsl(&h,&s,&l);
56  
57                  // rotate color on RGB color circle
58                  // 70° should end up with the typical "testnet" green
59                  h+=iconColorHueShift;
60  
61                  // change saturation value
62                  if(s>iconColorSaturationReduction)
63                  {
64                      s -= iconColorSaturationReduction;
65                  }
66                  col.setHsl(h,s,l,a);
67  
68                  // set the pixel
69                  scL[x] = col.rgba();
70              }
71          }
72  
73          //convert back to QPixmap
74          pixmap.convertFromImage(img);
75      }
76  
77      appIcon             = QIcon(pixmap);
78      trayAndWindowIcon   = QIcon(pixmap.scaled(QSize(256,256)));
79  }
80  
81  const NetworkStyle* NetworkStyle::instantiate(const ChainType networkId)
82  {
83      std::string titleAddText = networkId == ChainType::MAIN ? "" : strprintf("[%s]", ChainTypeToString(networkId));
84      for (const auto& network_style : network_styles) {
85          if (networkId == network_style.networkId) {
86              return new NetworkStyle(
87                      network_style.appName,
88                      network_style.iconColorHueShift,
89                      network_style.iconColorSaturationReduction,
90                      titleAddText.c_str());
91          }
92      }
93      return nullptr;
94  }