1  % fancyhdr.sty version 3.2
  2  % Fancy headers and footers for LaTeX.
  3  % Piet van Oostrum, 
  4  % Dept of Computer and Information Sciences, University of Utrecht,
  5  % Padualaan 14, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands
  6  % Telephone: +31 30 2532180. Email: piet@cs.uu.nl
  7  % ========================================================================
  8  % LICENCE:
  9  % This file may be distributed under the terms of the LaTeX Project Public
 10  % License, as described in lppl.txt in the base LaTeX distribution.
 11  % Either version 1 or, at your option, any later version.
 12  % ========================================================================
 13  % MODIFICATION HISTORY:
 14  % Sep 16, 1994
 15  % version 1.4: Correction for use with \reversemargin
 16  % Sep 29, 1994:
 17  % version 1.5: Added the \iftopfloat, \ifbotfloat and \iffloatpage commands
 18  % Oct 4, 1994:
 19  % version 1.6: Reset single spacing in headers/footers for use with
 20  % setspace.sty or doublespace.sty
 21  % Oct 4, 1994:
 22  % version 1.7: changed \let\@mkboth\markboth to
 23  % \def\@mkboth{\protect\markboth} to make it more robust
 24  % Dec 5, 1994:
 25  % version 1.8: corrections for amsbook/amsart: define \@chapapp and (more
 26  % importantly) use the \chapter/sectionmark definitions from ps@headings if
 27  % they exist (which should be true for all standard classes).
 28  % May 31, 1995:
 29  % version 1.9: The proposed \renewcommand{\headrulewidth}{\iffloatpage...
 30  % construction in the doc did not work properly with the fancyplain style. 
 31  % June 1, 1995:
 32  % version 1.91: The definition of \@mkboth wasn't restored on subsequent
 33  % \pagestyle{fancy}'s.
 34  % June 1, 1995:
 35  % version 1.92: The sequence \pagestyle{fancyplain} \pagestyle{plain}
 36  % \pagestyle{fancy} would erroneously select the plain version.
 37  % June 1, 1995:
 38  % version 1.93: \fancypagestyle command added.
 39  % Dec 11, 1995:
 40  % version 1.94: suggested by Conrad Hughes <chughes@maths.tcd.ie>
 41  % CJCH, Dec 11, 1995: added \footruleskip to allow control over footrule
 42  % position (old hardcoded value of .3\normalbaselineskip is far too high
 43  % when used with very small footer fonts).
 44  % Jan 31, 1996:
 45  % version 1.95: call \@normalsize in the reset code if that is defined,
 46  % otherwise \normalsize.
 47  % this is to solve a problem with ucthesis.cls, as this doesn't
 48  % define \@currsize. Unfortunately for latex209 calling \normalsize doesn't
 49  % work as this is optimized to do very little, so there \@normalsize should
 50  % be called. Hopefully this code works for all versions of LaTeX known to
 51  % mankind.  
 52  % April 25, 1996:
 53  % version 1.96: initialize \headwidth to a magic (negative) value to catch
 54  % most common cases that people change it before calling \pagestyle{fancy}.
 55  % Note it can't be initialized when reading in this file, because
 56  % \textwidth could be changed afterwards. This is quite probable.
 57  % We also switch to \MakeUppercase rather than \uppercase and introduce a
 58  % \nouppercase command for use in headers. and footers.
 59  % May 3, 1996:
 60  % version 1.97: Two changes:
 61  % 1. Undo the change in version 1.8 (using the pagestyle{headings} defaults
 62  % for the chapter and section marks. The current version of amsbook and
 63  % amsart classes don't seem to need them anymore. Moreover the standard
 64  % latex classes don't use \markboth if twoside isn't selected, and this is
 65  % confusing as \leftmark doesn't work as expected.
 66  % 2. include a call to \ps@empty in ps@@fancy. This is to solve a problem
 67  % in the amsbook and amsart classes, that make global changes to \topskip,
 68  % which are reset in \ps@empty. Hopefully this doesn't break other things.
 69  % May 7, 1996:
 70  % version 1.98:
 71  % Added % after the line  \def\nouppercase
 72  % May 7, 1996:
 73  % version 1.99: This is the alpha version of fancyhdr 2.0
 74  % Introduced the new commands \fancyhead, \fancyfoot, and \fancyhf.
 75  % Changed \headrulewidth, \footrulewidth, \footruleskip to
 76  % macros rather than length parameters, In this way they can be
 77  % conditionalized and they don't consume length registers. There is no need
 78  % to have them as length registers unless you want to do calculations with
 79  % them, which is unlikely. Note that this may make some uses of them
 80  % incompatible (i.e. if you have a file that uses \setlength or \xxxx=)
 81  % May 10, 1996:
 82  % version 1.99a:
 83  % Added a few more % signs
 84  % May 10, 1996:
 85  % version 1.99b:
 86  % Changed the syntax of \f@nfor to be resistent to catcode changes of :=
 87  % Removed the [1] from the defs of \lhead etc. because the parameter is
 88  % consumed by the \@[xy]lhead etc. macros.
 89  % June 24, 1997:
 90  % version 1.99c:
 91  % corrected \nouppercase to also include the protected form of \MakeUppercase
 92  % \global added to manipulation of \headwidth.
 93  % \iffootnote command added.
 94  % Some comments added about \@fancyhead and \@fancyfoot.
 95  % Aug 24, 1998
 96  % version 1.99d
 97  % Changed the default \ps@empty to \ps@@empty in order to allow
 98  % \fancypagestyle{empty} redefinition.
 99  % Oct 11, 2000
100  % version 2.0
101  % Added LPPL license clause.
102  %
103  % A check for \headheight is added. An errormessage is given (once) if the
104  % header is too large. Empty headers don't generate the error even if
105  % \headheight is very small or even 0pt. 
106  % Warning added for the use of 'E' option when twoside option is not used.
107  % In this case the 'E' fields will never be used.
108  %
109  % Mar 10, 2002
110  % version 2.1beta
111  % New command: \fancyhfoffset[place]{length}
112  % defines offsets to be applied to the header/footer to let it stick into
113  % the margins (if length > 0).
114  % place is like in fancyhead, except that only E,O,L,R can be used.
115  % This replaces the old calculation based on \headwidth and the marginpar
116  % area.
117  % \headwidth will be dynamically calculated in the headers/footers when
118  % this is used.
119  %
120  % Mar 26, 2002
121  % version 2.1beta2
122  % \fancyhfoffset now also takes h,f as possible letters in the argument to
123  % allow the header and footer widths to be different.
124  % New commands \fancyheadoffset and \fancyfootoffset added comparable to
125  % \fancyhead and \fancyfoot.
126  % Errormessages and warnings have been made more informative.
127  %
128  % Dec 9, 2002
129  % version 2.1
130  % The defaults for \footrulewidth, \plainheadrulewidth and
131  % \plainfootrulewidth are changed from \z@skip to 0pt. In this way when
132  % someone inadvertantly uses \setlength to change any of these, the value
133  % of \z@skip will not be changed, rather an errormessage will be given.
134  
135  % March 3, 2004
136  % Release of version 3.0
137  
138  % Oct 7, 2004
139  % version 3.1
140  % Added '\endlinechar=13' to \fancy@reset to prevent problems with
141  % includegraphics in header when verbatiminput is active.
142  
143  % March 22, 2005
144  % version 3.2
145  % reset \everypar (the real one) in \fancy@reset because spanish.ldf does
146  % strange things with \everypar between << and >>.
147  
148  \def\ifancy@mpty#1{\def\temp@a{#1}\ifx\temp@a\@empty}
149  
150  \def\fancy@def#1#2{\ifancy@mpty{#2}\fancy@gbl\def#1{\leavevmode}\else
151                                     \fancy@gbl\def#1{#2\strut}\fi}
152  
153  \let\fancy@gbl\global
154  
155  \def\@fancyerrmsg#1{%
156          \ifx\PackageError\undefined
157          \errmessage{#1}\else
158          \PackageError{Fancyhdr}{#1}{}\fi}
159  \def\@fancywarning#1{%
160          \ifx\PackageWarning\undefined
161          \errmessage{#1}\else
162          \PackageWarning{Fancyhdr}{#1}{}\fi}
163  
164  % Usage: \@forc \var{charstring}{command to be executed for each char}
165  % This is similar to LaTeX's \@tfor, but expands the charstring.
166  
167  \def\@forc#1#2#3{\expandafter\f@rc\expandafter#1\expandafter{#2}{#3}}
168  \def\f@rc#1#2#3{\def\temp@ty{#2}\ifx\@empty\temp@ty\else
169                                      \f@@rc#1#2\f@@rc{#3}\fi}
170  \def\f@@rc#1#2#3\f@@rc#4{\def#1{#2}#4\f@rc#1{#3}{#4}}
171  
172  % Usage: \f@nfor\name:=list\do{body}
173  % Like LaTeX's \@for but an empty list is treated as a list with an empty
174  % element
175  
176  \newcommand{\f@nfor}[3]{\edef\@fortmp{#2}%
177      \expandafter\@forloop#2,\@nil,\@nil\@@#1{#3}}
178  
179  % Usage: \def@ult \cs{defaults}{argument}
180  % sets \cs to the characters from defaults appearing in argument
181  % or defaults if it would be empty. All characters are lowercased.
182  
183  \newcommand\def@ult[3]{%
184      \edef\temp@a{\lowercase{\edef\noexpand\temp@a{#3}}}\temp@a
185      \def#1{}%
186      \@forc\tmpf@ra{#2}%
187          {\expandafter\if@in\tmpf@ra\temp@a{\edef#1{#1\tmpf@ra}}{}}%
188      \ifx\@empty#1\def#1{#2}\fi}
189  % 
190  % \if@in <char><set><truecase><falsecase>
191  %
192  \newcommand{\if@in}[4]{%
193      \edef\temp@a{#2}\def\temp@b##1#1##2\temp@b{\def\temp@b{##1}}%
194      \expandafter\temp@b#2#1\temp@b\ifx\temp@a\temp@b #4\else #3\fi}
195  
196  \newcommand{\fancyhead}{\@ifnextchar[{\f@ncyhf\fancyhead h}%
197                                       {\f@ncyhf\fancyhead h[]}}
198  \newcommand{\fancyfoot}{\@ifnextchar[{\f@ncyhf\fancyfoot f}%
199                                       {\f@ncyhf\fancyfoot f[]}}
200  \newcommand{\fancyhf}{\@ifnextchar[{\f@ncyhf\fancyhf{}}%
201                                     {\f@ncyhf\fancyhf{}[]}}
202  
203  % New commands for offsets added
204  
205  \newcommand{\fancyheadoffset}{\@ifnextchar[{\f@ncyhfoffs\fancyheadoffset h}%
206                                             {\f@ncyhfoffs\fancyheadoffset h[]}}
207  \newcommand{\fancyfootoffset}{\@ifnextchar[{\f@ncyhfoffs\fancyfootoffset f}%
208                                             {\f@ncyhfoffs\fancyfootoffset f[]}}
209  \newcommand{\fancyhfoffset}{\@ifnextchar[{\f@ncyhfoffs\fancyhfoffset{}}%
210                                           {\f@ncyhfoffs\fancyhfoffset{}[]}}
211  
212  % The header and footer fields are stored in command sequences with
213  % names of the form: \f@ncy<x><y><z> with <x> for [eo], <y> from [lcr]
214  % and <z> from [hf].
215  
216  \def\f@ncyhf#1#2[#3]#4{%
217      \def\temp@c{}%
218      \@forc\tmpf@ra{#3}%
219          {\expandafter\if@in\tmpf@ra{eolcrhf,EOLCRHF}%
220              {}{\edef\temp@c{\temp@c\tmpf@ra}}}%
221      \ifx\@empty\temp@c\else
222          \@fancyerrmsg{Illegal char `\temp@c' in \string#1 argument:
223            [#3]}%
224      \fi
225      \f@nfor\temp@c{#3}%
226          {\def@ult\f@@@eo{eo}\temp@c
227           \if@twoside\else
228             \if\f@@@eo e\@fancywarning
229               {\string#1's `E' option without twoside option is useless}\fi\fi
230           \def@ult\f@@@lcr{lcr}\temp@c
231           \def@ult\f@@@hf{hf}{#2\temp@c}%
232           \@forc\f@@eo\f@@@eo
233               {\@forc\f@@lcr\f@@@lcr
234                   {\@forc\f@@hf\f@@@hf
235                       {\expandafter\fancy@def\csname
236                        f@ncy\f@@eo\f@@lcr\f@@hf\endcsname
237                        {#4}}}}}}
238  
239  \def\f@ncyhfoffs#1#2[#3]#4{%
240      \def\temp@c{}%
241      \@forc\tmpf@ra{#3}%
242          {\expandafter\if@in\tmpf@ra{eolrhf,EOLRHF}%
243              {}{\edef\temp@c{\temp@c\tmpf@ra}}}%
244      \ifx\@empty\temp@c\else
245          \@fancyerrmsg{Illegal char `\temp@c' in \string#1 argument:
246            [#3]}%
247      \fi
248      \f@nfor\temp@c{#3}%
249          {\def@ult\f@@@eo{eo}\temp@c
250           \if@twoside\else
251             \if\f@@@eo e\@fancywarning
252               {\string#1's `E' option without twoside option is useless}\fi\fi
253           \def@ult\f@@@lcr{lr}\temp@c
254           \def@ult\f@@@hf{hf}{#2\temp@c}%
255           \@forc\f@@eo\f@@@eo
256               {\@forc\f@@lcr\f@@@lcr
257                   {\@forc\f@@hf\f@@@hf
258                       {\expandafter\setlength\csname
259                        f@ncyO@\f@@eo\f@@lcr\f@@hf\endcsname
260                        {#4}}}}}%
261       \fancy@setoffs}
262  
263  % Fancyheadings version 1 commands. These are more or less deprecated,
264  % but they continue to work.
265  
266  \newcommand{\lhead}{\@ifnextchar[{\@xlhead}{\@ylhead}}
267  \def\@xlhead[#1]#2{\fancy@def\f@ncyelh{#1}\fancy@def\f@ncyolh{#2}}
268  \def\@ylhead#1{\fancy@def\f@ncyelh{#1}\fancy@def\f@ncyolh{#1}}
269  
270  \newcommand{\chead}{\@ifnextchar[{\@xchead}{\@ychead}}
271  \def\@xchead[#1]#2{\fancy@def\f@ncyech{#1}\fancy@def\f@ncyoch{#2}}
272  \def\@ychead#1{\fancy@def\f@ncyech{#1}\fancy@def\f@ncyoch{#1}}
273  
274  \newcommand{\rhead}{\@ifnextchar[{\@xrhead}{\@yrhead}}
275  \def\@xrhead[#1]#2{\fancy@def\f@ncyerh{#1}\fancy@def\f@ncyorh{#2}}
276  \def\@yrhead#1{\fancy@def\f@ncyerh{#1}\fancy@def\f@ncyorh{#1}}
277  
278  \newcommand{\lfoot}{\@ifnextchar[{\@xlfoot}{\@ylfoot}}
279  \def\@xlfoot[#1]#2{\fancy@def\f@ncyelf{#1}\fancy@def\f@ncyolf{#2}}
280  \def\@ylfoot#1{\fancy@def\f@ncyelf{#1}\fancy@def\f@ncyolf{#1}}
281  
282  \newcommand{\cfoot}{\@ifnextchar[{\@xcfoot}{\@ycfoot}}
283  \def\@xcfoot[#1]#2{\fancy@def\f@ncyecf{#1}\fancy@def\f@ncyocf{#2}}
284  \def\@ycfoot#1{\fancy@def\f@ncyecf{#1}\fancy@def\f@ncyocf{#1}}
285  
286  \newcommand{\rfoot}{\@ifnextchar[{\@xrfoot}{\@yrfoot}}
287  \def\@xrfoot[#1]#2{\fancy@def\f@ncyerf{#1}\fancy@def\f@ncyorf{#2}}
288  \def\@yrfoot#1{\fancy@def\f@ncyerf{#1}\fancy@def\f@ncyorf{#1}}
289  
290  \newlength{\fancy@headwidth}
291  \let\headwidth\fancy@headwidth
292  \newlength{\f@ncyO@elh}
293  \newlength{\f@ncyO@erh}
294  \newlength{\f@ncyO@olh}
295  \newlength{\f@ncyO@orh}
296  \newlength{\f@ncyO@elf}
297  \newlength{\f@ncyO@erf}
298  \newlength{\f@ncyO@olf}
299  \newlength{\f@ncyO@orf}
300  \newcommand{\headrulewidth}{0.4pt}
301  \newcommand{\footrulewidth}{0pt}
302  \newcommand{\footruleskip}{.3\normalbaselineskip}
303  
304  % Fancyplain stuff shouldn't be used anymore (rather
305  % \fancypagestyle{plain} should be used), but it must be present for
306  % compatibility reasons.
307  
308  \newcommand{\plainheadrulewidth}{0pt}
309  \newcommand{\plainfootrulewidth}{0pt}
310  \newif\if@fancyplain \@fancyplainfalse
311  \def\fancyplain#1#2{\if@fancyplain#1\else#2\fi}
312  
313  \headwidth=-123456789sp %magic constant
314  
315  % Command to reset various things in the headers:
316  % a.o.  single spacing (taken from setspace.sty)
317  % and the catcode of ^^M (so that epsf files in the header work if a
318  % verbatim crosses a page boundary)
319  % It also defines a \nouppercase command that disables \uppercase and
320  % \Makeuppercase. It can only be used in the headers and footers.
321  \let\fnch@everypar\everypar% save real \everypar because of spanish.ldf
322  \def\fancy@reset{\fnch@everypar{}\restorecr\endlinechar=13
323   \def\baselinestretch{1}%
324   \def\nouppercase##1{{\let\uppercase\relax\let\MakeUppercase\relax
325       \expandafter\let\csname MakeUppercase \endcsname\relax##1}}%
326   \ifx\undefined\@newbaseline% NFSS not present; 2.09 or 2e
327     \ifx\@normalsize\undefined \normalsize % for ucthesis.cls
328     \else \@normalsize \fi
329   \else% NFSS (2.09) present
330    \@newbaseline%
331   \fi}
332  
333  % Initialization of the head and foot text.
334  
335  % The default values still contain \fancyplain for compatibility.
336  \fancyhf{} % clear all
337  % lefthead empty on ``plain'' pages, \rightmark on even, \leftmark on odd pages
338  % evenhead empty on ``plain'' pages, \leftmark on even, \rightmark on odd pages
339  \if@twoside
340    \fancyhead[el,or]{\fancyplain{}{\sl\rightmark}}
341    \fancyhead[er,ol]{\fancyplain{}{\sl\leftmark}}
342  \else
343    \fancyhead[l]{\fancyplain{}{\sl\rightmark}}
344    \fancyhead[r]{\fancyplain{}{\sl\leftmark}}
345  \fi
346  \fancyfoot[c]{\rm\thepage} % page number
347  
348  % Use box 0 as a temp box and dimen 0 as temp dimen. 
349  % This can be done, because this code will always
350  % be used inside another box, and therefore the changes are local.
351  
352  \def\@fancyvbox#1#2{\setbox0\vbox{#2}\ifdim\ht0>#1\@fancywarning
353    {\string#1 is too small (\the#1): ^^J Make it at least \the\ht0.^^J
354      We now make it that large for the rest of the document.^^J
355      This may cause the page layout to be inconsistent, however\@gobble}%
356    \dimen0=#1\global\setlength{#1}{\ht0}\ht0=\dimen0\fi
357    \box0}
358  
359  % Put together a header or footer given the left, center and
360  % right text, fillers at left and right and a rule.
361  % The \lap commands put the text into an hbox of zero size,
362  % so overlapping text does not generate an errormessage.
363  % These macros have 5 parameters:
364  % 1. LEFTSIDE BEARING % This determines at which side the header will stick
365  %    out. When \fancyhfoffset is used this calculates \headwidth, otherwise
366  %    it is \hss or \relax (after expansion).
367  % 2. \f@ncyolh, \f@ncyelh, \f@ncyolf or \f@ncyelf. This is the left component.
368  % 3. \f@ncyoch, \f@ncyech, \f@ncyocf or \f@ncyecf. This is the middle comp.
369  % 4. \f@ncyorh, \f@ncyerh, \f@ncyorf or \f@ncyerf. This is the right component.
370  % 5. RIGHTSIDE BEARING. This is always \relax or \hss (after expansion).
371  
372  \def\@fancyhead#1#2#3#4#5{#1\hbox to\headwidth{\fancy@reset
373    \@fancyvbox\headheight{\hbox
374      {\rlap{\parbox[b]{\headwidth}{\raggedright#2}}\hfill
375        \parbox[b]{\headwidth}{\centering#3}\hfill
376        \llap{\parbox[b]{\headwidth}{\raggedleft#4}}}\headrule}}#5}
377  
378  \def\@fancyfoot#1#2#3#4#5{#1\hbox to\headwidth{\fancy@reset
379      \@fancyvbox\footskip{\footrule
380        \hbox{\rlap{\parbox[t]{\headwidth}{\raggedright#2}}\hfill
381          \parbox[t]{\headwidth}{\centering#3}\hfill
382          \llap{\parbox[t]{\headwidth}{\raggedleft#4}}}}}#5}
383  
384  \def\headrule{{\if@fancyplain\let\headrulewidth\plainheadrulewidth\fi
385      \hrule\@height\headrulewidth\@width\headwidth \vskip-\headrulewidth}}
386  
387  \def\footrule{{\if@fancyplain\let\footrulewidth\plainfootrulewidth\fi
388      \vskip-\footruleskip\vskip-\footrulewidth
389      \hrule\@width\headwidth\@height\footrulewidth\vskip\footruleskip}}
390  
391  \def\ps@fancy{%
392  \@ifundefined{@chapapp}{\let\@chapapp\chaptername}{}%for amsbook
393  %
394  % Define \MakeUppercase for old LaTeXen.
395  % Note: we used \def rather than \let, so that \let\uppercase\relax (from
396  % the version 1 documentation) will still work.
397  %
398  \@ifundefined{MakeUppercase}{\def\MakeUppercase{\uppercase}}{}%
399  \@ifundefined{chapter}{\def\sectionmark##1{\markboth
400  {\MakeUppercase{\ifnum \c@secnumdepth>\z@
401   \thesection\hskip 1em\relax \fi ##1}}{}}%
402  \def\subsectionmark##1{\markright {\ifnum \c@secnumdepth >\@ne
403   \thesubsection\hskip 1em\relax \fi ##1}}}%
404  {\def\chaptermark##1{\markboth {\MakeUppercase{\ifnum \c@secnumdepth>\m@ne
405   \@chapapp\ \thechapter. \ \fi ##1}}{}}%
406  \def\sectionmark##1{\markright{\MakeUppercase{\ifnum \c@secnumdepth >\z@
407   \thesection. \ \fi ##1}}}}%
408  %\csname ps@headings\endcsname % use \ps@headings defaults if they exist
409  \ps@@fancy
410  \gdef\ps@fancy{\@fancyplainfalse\ps@@fancy}%
411  % Initialize \headwidth if the user didn't
412  %
413  \ifdim\headwidth<0sp
414  %
415  % This catches the case that \headwidth hasn't been initialized and the
416  % case that the user added something to \headwidth in the expectation that
417  % it was initialized to \textwidth. We compensate this now. This loses if
418  % the user intended to multiply it by a factor. But that case is more
419  % likely done by saying something like \headwidth=1.2\textwidth. 
420  % The doc says you have to change \headwidth after the first call to
421  % \pagestyle{fancy}. This code is just to catch the most common cases were
422  % that requirement is violated.
423  %
424      \global\advance\headwidth123456789sp\global\advance\headwidth\textwidth
425  \fi}
426  \def\ps@fancyplain{\ps@fancy \let\ps@plain\ps@plain@fancy}
427  \def\ps@plain@fancy{\@fancyplaintrue\ps@@fancy}
428  \let\ps@@empty\ps@empty
429  \def\ps@@fancy{%
430  \ps@@empty % This is for amsbook/amsart, which do strange things with \topskip
431  \def\@mkboth{\protect\markboth}%
432  \def\@oddhead{\@fancyhead\fancy@Oolh\f@ncyolh\f@ncyoch\f@ncyorh\fancy@Oorh}%
433  \def\@oddfoot{\@fancyfoot\fancy@Oolf\f@ncyolf\f@ncyocf\f@ncyorf\fancy@Oorf}%
434  \def\@evenhead{\@fancyhead\fancy@Oelh\f@ncyelh\f@ncyech\f@ncyerh\fancy@Oerh}%
435  \def\@evenfoot{\@fancyfoot\fancy@Oelf\f@ncyelf\f@ncyecf\f@ncyerf\fancy@Oerf}%
436  }
437  % Default definitions for compatibility mode:
438  % These cause the header/footer to take the defined \headwidth as width
439  % And to shift in the direction of the marginpar area
440  
441  \def\fancy@Oolh{\if@reversemargin\hss\else\relax\fi}
442  \def\fancy@Oorh{\if@reversemargin\relax\else\hss\fi}
443  \let\fancy@Oelh\fancy@Oorh
444  \let\fancy@Oerh\fancy@Oolh
445  
446  \let\fancy@Oolf\fancy@Oolh
447  \let\fancy@Oorf\fancy@Oorh
448  \let\fancy@Oelf\fancy@Oelh
449  \let\fancy@Oerf\fancy@Oerh
450  
451  % New definitions for the use of \fancyhfoffset
452  % These calculate the \headwidth from \textwidth and the specified offsets.
453  
454  \def\fancy@offsolh{\headwidth=\textwidth\advance\headwidth\f@ncyO@olh
455                     \advance\headwidth\f@ncyO@orh\hskip-\f@ncyO@olh}
456  \def\fancy@offselh{\headwidth=\textwidth\advance\headwidth\f@ncyO@elh
457                     \advance\headwidth\f@ncyO@erh\hskip-\f@ncyO@elh}
458  
459  \def\fancy@offsolf{\headwidth=\textwidth\advance\headwidth\f@ncyO@olf
460                     \advance\headwidth\f@ncyO@orf\hskip-\f@ncyO@olf}
461  \def\fancy@offself{\headwidth=\textwidth\advance\headwidth\f@ncyO@elf
462                     \advance\headwidth\f@ncyO@erf\hskip-\f@ncyO@elf}
463  
464  \def\fancy@setoffs{%
465  % Just in case \let\headwidth\textwidth was used
466    \fancy@gbl\let\headwidth\fancy@headwidth
467    \fancy@gbl\let\fancy@Oolh\fancy@offsolh
468    \fancy@gbl\let\fancy@Oelh\fancy@offselh
469    \fancy@gbl\let\fancy@Oorh\hss
470    \fancy@gbl\let\fancy@Oerh\hss
471    \fancy@gbl\let\fancy@Oolf\fancy@offsolf
472    \fancy@gbl\let\fancy@Oelf\fancy@offself
473    \fancy@gbl\let\fancy@Oorf\hss
474    \fancy@gbl\let\fancy@Oerf\hss}
475  
476  \newif\iffootnote
477  \let\latex@makecol\@makecol
478  \def\@makecol{\ifvoid\footins\footnotetrue\else\footnotefalse\fi
479  \let\topfloat\@toplist\let\botfloat\@botlist\latex@makecol}
480  \def\iftopfloat#1#2{\ifx\topfloat\empty #2\else #1\fi}
481  \def\ifbotfloat#1#2{\ifx\botfloat\empty #2\else #1\fi}
482  \def\iffloatpage#1#2{\if@fcolmade #1\else #2\fi}
483  
484  \newcommand{\fancypagestyle}[2]{%
485    \@namedef{ps@#1}{\let\fancy@gbl\relax#2\relax\ps@fancy}}