doc/fancyhea.sty

   1 % fancyheadings.sty version 1.92
   2 % Fancy headers and footers.
   3 % Piet van Oostrum, Dept of Computer Science, University of Utrecht
   4 % Padualaan 14, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands
   5 % Telephone: +31-30-531806. piet@cs.ruu.nl (mcvax!sun4nl!ruuinf!piet)
   6 % Sep 16, 1994
   7 % version 1.4: Correction for use with \reversemargin
   8 % Sep 29, 1994:
   9 % version 1.5: Added the \iftopfloat, \ifbotfloat and \iffloatpage commands
  10 % Oct 4, 1994:
  11 % version 1.6: Reset single spacing in headers/footers for use with
  12 % setspace.sty or doublespace.sty
  13 % Oct 4, 1994:
  14 % version 1.7: changed \let\@mkboth\markboth to
  15 % \def\@mkboth{\protect\markboth} to make it more robust
  16 % Dec 5, 1994:
  17 % version 1.8: corrections for amsbook/amsart: define \@chapapp and (more
  18 % importantly) use the \chapter/sectionmark definitions from ps@headings if
  19 % they exist (which should be true for all standard classes).
  20 % May 31, 1995:
  21 % version 1.9: The proposed \renewcommand{\headrulewidth}{\iffloatpage...
  22 % construction in the doc did not work properly with the fancyplain style.
  23 % June 1, 1995:
  24 % version 1.91: The definition of \@mkboth wasn't restored on subsequent
  25 % \pagestyle{fancy}'s.
  26 % June 1, 1995:
  27 % version 1.92: The sequence \pagestyle{fancyplain} \pagestyle{plain}
  28 % \pagestyle{fancy} would erroneously select the plain version.
  29
  30 \def\lhead{\@ifnextchar[{\@xlhead}{\@ylhead}}
  31 \def\@xlhead[#1]#2{\gdef\@elhead{#1}\gdef\@olhead{#2}}
  32 \def\@ylhead#1{\gdef\@elhead{#1}\gdef\@olhead{#1}}
  33
  34 \def\chead{\@ifnextchar[{\@xchead}{\@ychead}}
  35 \def\@xchead[#1]#2{\gdef\@echead{#1}\gdef\@ochead{#2}}
  36 \def\@ychead#1{\gdef\@echead{#1}\gdef\@ochead{#1}}
  37
  38 \def\rhead{\@ifnextchar[{\@xrhead}{\@yrhead}}
  39 \def\@xrhead[#1]#2{\gdef\@erhead{#1}\gdef\@orhead{#2}}
  40 \def\@yrhead#1{\gdef\@erhead{#1}\gdef\@orhead{#1}}
  41
  42 \def\lfoot{\@ifnextchar[{\@xlfoot}{\@ylfoot}}
  43 \def\@xlfoot[#1]#2{\gdef\@elfoot{#1}\gdef\@olfoot{#2}}
  44 \def\@ylfoot#1{\gdef\@elfoot{#1}\gdef\@olfoot{#1}}
  45
  46 \def\cfoot{\@ifnextchar[{\@xcfoot}{\@ycfoot}}
  47 \def\@xcfoot[#1]#2{\gdef\@ecfoot{#1}\gdef\@ocfoot{#2}}
  48 \def\@ycfoot#1{\gdef\@ecfoot{#1}\gdef\@ocfoot{#1}}
  49
  50 \def\rfoot{\@ifnextchar[{\@xrfoot}{\@yrfoot}}
  51 \def\@xrfoot[#1]#2{\gdef\@erfoot{#1}\gdef\@orfoot{#2}}
  52 \def\@yrfoot#1{\gdef\@erfoot{#1}\gdef\@orfoot{#1}}
  53
  54 \newdimen\headrulewidth
  55 \newdimen\footrulewidth
  56 \newdimen\plainheadrulewidth
  57 \newdimen\plainfootrulewidth
  58 \newdimen\headwidth
  59 \newif\if@fancyplain
  60 \def\fancyplain#1#2{\if@fancyplain#1\else#2\fi}
  61
  62 % Command to reset various things in the headers:
  63 % a.o.  single spacing (taken from setspace.sty)
  64 % and the catcode of ^^M (so that epsf files in the header work if a
  65 % verbatim crosses a page boundary)
  66 \def\fancy@reset{\restorecr
  67  \def\baselinestretch{1}%
  68  \ifx\undefined\@newbaseline% NFSS not present; 2.09 or 2e
  69   \ifx\@currsize\normalsize\@normalsize\else\@currsize\fi%
  70  \else% NFSS (2.09) present
  71   \@newbaseline%
  72  \fi}
  73
  74 % Initialization of the head and foot text.
  75
  76 \headrulewidth 0.4pt
  77 \footrulewidth\z@
  78 \plainheadrulewidth\z@
  79 \plainfootrulewidth\z@
  80
  81 \lhead[\fancyplain{}{\sl\rightmark}]{\fancyplain{}{\sl\leftmark}}
  82 %  i.e. empty on ``plain'' pages, \rightmark on even, \leftmark on odd pages
  83 \chead{}
  84 \rhead[\fancyplain{}{\sl\leftmark}]{\fancyplain{}{\sl\rightmark}}
  85 %  i.e. empty on ``plain'' pages, \leftmark on even, \rightmark on odd pages
  86 \lfoot{}
  87 \cfoot{\rm\thepage} % page number
  88 \rfoot{}
  89
  90 % Put together a header or footer given the left, center and
  91 % right text, fillers at left and right and a rule.
  92 % The \lap commands put the text into an hbox of zero size,
  93 % so overlapping text does not generate an errormessage.
  94
  95 \def\@fancyhead#1#2#3#4#5{#1\hbox to\headwidth{\fancy@reset\vbox{\hbox
  96 {\rlap{\parbox[b]{\headwidth}{\raggedright#2\strut}}\hfill
  97 \parbox[b]{\headwidth}{\centering#3\strut}\hfill
  98 \llap{\parbox[b]{\headwidth}{\raggedleft#4\strut}}}\headrule}}#5}
  99
 100
 101 \def\@fancyfoot#1#2#3#4#5{#1\hbox to\headwidth{\fancy@reset\vbox{\footrule
 102 \hbox{\rlap{\parbox[t]{\headwidth}{\raggedright#2\strut}}\hfill
 103 \parbox[t]{\headwidth}{\centering#3\strut}\hfill
 104 \llap{\parbox[t]{\headwidth}{\raggedleft#4\strut}}}}}#5}
 105
 106 \def\headrule{{\if@fancyplain\let\headrulewidth\plainheadrulewidth\fi
 107 \hrule\@height\headrulewidth\@width\headwidth \vskip-\headrulewidth}}
 108
 109 \def\footrule{{\if@fancyplain\let\footrulewidth\plainfootrulewidth\fi
 110 \vskip-0.3\normalbaselineskip\vskip-\footrulewidth
 111 \hrule\@width\headwidth\@height\footrulewidth\vskip0.3\normalbaselineskip}}
 112
 113 \def\ps@fancy{%
 114 \@ifundefined{@chapapp}{\let\@chapapp\chaptername}{}%for amsbook
 115 \@ifundefined{chapter}{\def\sectionmark##1{\markboth
 116 {\uppercase{\ifnum \c@secnumdepth>\z@
 117  \thesection\hskip 1em\relax \fi ##1}}{}}%
 118 \def\subsectionmark##1{\markright {\ifnum \c@secnumdepth >\@ne
 119  \thesubsection\hskip 1em\relax \fi ##1}}}%
 120 {\def\chaptermark##1{\markboth {\uppercase{\ifnum \c@secnumdepth>\m@ne
 121  \@chapapp\ \thechapter. \ \fi ##1}}{}}
 122 \def\sectionmark##1{\markright{\uppercase{\ifnum \c@secnumdepth >\z@
 123  \thesection. \ \fi ##1}}}}%
 124 \csname ps@headings\endcsname % use \ps@headings defaults if they exist
 125 \ps@@fancy
 126 \gdef\ps@fancy{\@fancyplainfalse\ps@@fancy}%
 127 \headwidth\textwidth}
 128 \def\ps@fancyplain{\ps@fancy \let\ps@plain\ps@plain@fancy}
 129 \def\ps@plain@fancy{\@fancyplaintrue\ps@@fancy}
 130 \def\ps@@fancy{%
 131 \def\@mkboth{\protect\markboth}%
 132 \def\@oddhead{\@fancyhead\@lodd\@olhead\@ochead\@orhead\@rodd}%
 133 \def\@oddfoot{\@fancyfoot\@lodd\@olfoot\@ocfoot\@orfoot\@rodd}%
 134 \def\@evenhead{\@fancyhead\@rodd\@elhead\@echead\@erhead\@lodd}%
 135 \def\@evenfoot{\@fancyfoot\@rodd\@elfoot\@ecfoot\@erfoot\@lodd}%
 136 }
 137 \def\@lodd{\if@reversemargin\hss\else\relax\fi}
 138 \def\@rodd{\if@reversemargin\relax\else\hss\fi}
 139
 140 \let\latex@makecol\@makecol
 141 \def\@makecol{\let\topfloat\@toplist\let\botfloat\@botlist\latex@makecol}
 142 \def\iftopfloat#1#2{\ifx\topfloat\empty #2\else #1\fi}
 143 \def\ifbotfloat#1#2{\ifx\botfloat\empty #2\else #1\fi}
 144 \def\iffloatpage#1#2{\if@fcolmade #1\else #2\fi}
 145