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Diffstat (limited to 'tex/context/base/mkiv/page-txt.mklx')
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diff --git a/tex/context/base/mkiv/page-txt.mklx b/tex/context/base/mkiv/page-txt.mklx new file mode 100644 index 000000000..6029034e5 --- /dev/null +++ b/tex/context/base/mkiv/page-txt.mklx @@ -0,0 +1,969 @@ +% macros=mkvi + +%D \module +%D [ file=page-txt, % copied from main-001, +%D version=1997.03.31, +%D title=\CONTEXT\ Page Macros, +%D subtitle=Texts, +%D author=Hans Hagen, +%D date=\currentdate, +%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See mreadme.pdf for +%C details. + +\writestatus{loading}{ConTeXt Page Macros / Texts} + +\unprotect + +\newtoks\toptextcontent \newtoks\leftedgetextcontent +\newtoks\headertextcontent \newtoks\leftmargintextcontent +\newtoks\footertextcontent \newtoks\rightmargintextcontent +\newtoks\bottomtextcontent \newtoks\rightedgetextcontent + +\newtoks\texttextcontent + +%D \macros +%D {setuptop, setupheader, setuptext,setupfooter, setupbottom} +%D +%D The macros in this module sometimes look a bit more complicated than needed, +%D which is a direct result of the fact that their ancestors are quite old and +%D upward compatibility is a must. +%D +%D \showsetup{setuptop} +%D \showsetup{setupheader} +%D \showsetup{setuptext} +%D \showsetup{setupfooter} +%D \showsetup{setupbottom} + +\installcorenamespace{layouttexts} +\installcorenamespace{layouttextsline} +\installcorenamespace{layouttextsreset} +\installcorenamespace{layouttextssynchronize} +\installcorenamespace{layouttextstrut} +\installcorenamespace{layouttextspecial} +\installcorenamespace{layouttextcontent} + +\installcommandhandler \??layouttexts {layoutelement} \??layouttexts + +% \appendtoks +% \resetlayoutelementparameter\c!lefttext % resolves better +% \resetlayoutelementparameter\c!middletext +% \resetlayoutelementparameter\c!righttext +% \to \everydefinelayoutelement + +\definelayoutelement[\v!top ] +\definelayoutelement[\v!header] +\definelayoutelement[\v!text ] +\definelayoutelement[\v!footer] +\definelayoutelement[\v!bottom] + +\definelayoutelement[\v!top :\v!text] [\v!top ][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!header:\v!text] [\v!header][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!text :\v!text] [\v!text ][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!footer:\v!text] [\v!footer][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!bottom:\v!text] [\v!bottom][\c!lefttext=,\c!middletext=,\c!righttext=] + +\definelayoutelement[\v!top :\v!margin][\v!top ][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!header:\v!margin][\v!header][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!text :\v!margin][\v!text ][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!footer:\v!margin][\v!footer][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!bottom:\v!margin][\v!bottom][\c!lefttext=,\c!middletext=,\c!righttext=] + +\definelayoutelement[\v!top :\v!edge] [\v!top ][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!header:\v!edge] [\v!header][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!text :\v!edge] [\v!text ][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!footer:\v!edge] [\v!footer][\c!lefttext=,\c!middletext=,\c!righttext=] +\definelayoutelement[\v!bottom:\v!edge] [\v!bottom][\c!lefttext=,\c!middletext=,\c!righttext=] + +\unexpanded\def\setuplayouttext + {\dotripleempty\page_layouts_setup_text} + +\def\page_layouts_setup_text[#vertical][#horizontal][#settings]% + {\ifthirdargument + \setuplayoutelement[#vertical:#horizontal][#settings]% + \else + \setuplayoutelement[#vertical][#horizontal]% + \fi} + +\appendtoks + \ifx\currentlayoutelement\empty\else + \page_layouts_synchronize_element\currentlayoutelement % brr, can be vertical:horizontal + \fi +\to \everysetuplayoutelement + +\def\page_layouts_reset_element_status#vertical% + {\expandafter\normalgdef\csname\??layouttextsreset#vertical\endcsname{\page_layouts_set_element_status_normal#vertical}} + +\def\page_layouts_set_element_status_normal#vertical% + {\expandafter\glet\csname\namedlayoutelementhash#vertical\c!state\endcsname\v!normal + \expandafter\glet\csname\??layouttextsreset#vertical\endcsname\relax + \page_layouts_synchronize_element{#vertical}} + +\def\page_layouts_synchronize_element#vertical% + {\xdef\previoustextstate{\csname\??layouttextssynchronize#vertical\endcsname}% can be a let + \edef\currenttextstate {\namedlayoutelementparameter{#vertical}\c!state}% + %\writestatus{>>}{[#vertical:\currenttextstate/\previoustextstate]}% + \ifx\currenttextstate\previoustextstate \else + \page_layouts_synchronize_element_indeed{#vertical}% + \fi} + +\def\page_layouts_synchronize_element_indeed#vertical% + {\ifx\currenttextstate \v!high \calculatevsizes\page_backgrounds_recalculate \orelse + \ifx\previoustextstate\v!high \calculatevsizes\page_backgrounds_recalculate \orelse + \ifx\currenttextstate \v!none \calculatevsizes\page_backgrounds_recalculate \orelse + \ifx\previoustextstate\v!none \calculatevsizes\page_backgrounds_recalculate \fi + \letgvalue{\??layouttextssynchronize#vertical}\currenttextstate} + +\unexpanded\def\setuptop {\dotripleempty\page_layouts_setup_text[\v!top ]} +\unexpanded\def\setupheader{\dotripleempty\page_layouts_setup_text[\v!header]} +\unexpanded\def\setuptext {\dotripleempty\page_layouts_setup_text[\v!text ]} +\unexpanded\def\setupfooter{\dotripleempty\page_layouts_setup_text[\v!footer]} +\unexpanded\def\setupbottom{\dotripleempty\page_layouts_setup_text[\v!bottom]} + +%D We inherit some settings: + +\setuplayoutelement + [ \c!leftstyle=\layoutelementparameter\c!style, + \c!middlestyle=\layoutelementparameter\c!style, + \c!rightstyle=\layoutelementparameter\c!style, + \c!leftcolor=\layoutelementparameter\c!color, + \c!middlecolor=\layoutelementparameter\c!color, + \c!rightcolor=\layoutelementparameter\c!color, + \c!leftwidth=\layoutelementparameter\c!width, + \c!middlewidth=\layoutelementparameter\c!width, + \c!rightwidth=\layoutelementparameter\c!width] + +%D \macros +%D {noheaderandfooterlines,notopandbottomlines} +%D +%D Although not really needed, the following shortcuts sometimes come in handy. +%D +%D \showsetup{noheaderandfooterlines} +%D \showsetup{notopandbottomlines} + +\unexpanded\def\noheaderandfooterlines + {\setuplayoutelement[\v!header][\c!state=\v!empty]% + \setuplayoutelement[\v!footer][\c!state=\v!empty]} + +\unexpanded\def\notopandbottomlines + {\setuplayoutelement[\v!top ][\c!state=\v!empty]% + \setuplayoutelement[\v!bottom][\c!state=\v!empty]} + +%D \macros +%D {setuptoptexts,setupheadertexts,setuptexttexts,setupfootertexts,setupbottomtexts} +%D +%D The next macros take one or more arguments. The exact setup depends on the number +%D of arguments. Although not that intuitive, the current scheme evolved out of the +%D original. When margin and edge texts as well as middle texts showed up, the +%D current odd|/|even scheme surfaced. +%D +%D \showsetup{setuptoptexts} +%D \showsetup{setupheadertexts} +%D \showsetup{setuptexttexts} +%D \showsetup{setupfootertexts} +%D \showsetup{setupbottomtexts} +%D +%D Only the following have checking for pagenumber, date and mark built in, so when +%D someone uses the key|/|value interface these things have to be set explicitly as +%D part of the text. + +\unexpanded\def\setuptoptexts {\dosixtupleempty\page_layouts_setup_texts[\v!top ]} +\unexpanded\def\setupheadertexts{\dosixtupleempty\page_layouts_setup_texts[\v!header]} +\unexpanded\def\setuptexttexts {\dosixtupleempty\page_layouts_setup_texts[\v!text ]} +\unexpanded\def\setupfootertexts{\dosixtupleempty\page_layouts_setup_texts[\v!footer]} +\unexpanded\def\setupbottomtexts{\dosixtupleempty\page_layouts_setup_texts[\v!bottom]} + +\unexpanded\def\page_layouts_setup_text_six[#vertical][#horizontal][#a][#b][#c][#d]% + {\edef\currentlayoutelement{#vertical:#horizontal}% + \setlayoutelementparameter\c!lefttext {\page_layouts_process_element_double{#a}{#d}}% + \setlayoutelementparameter\c!righttext{\page_layouts_process_element_double{#b}{#c}}} + +\unexpanded\def\page_layouts_setup_text_five[#vertical][#horizontal][#a][#b][#c][#d]% + {\edef\currentlayoutelement{#vertical:\v!text}% + \setlayoutelementparameter\c!lefttext {\page_layouts_process_element_double{#horizontal}{#c}}% + \setlayoutelementparameter\c!righttext{\page_layouts_process_element_double{#a}{#b}}} + +\unexpanded\def\page_layouts_setup_text_four[#vertical][#horizontal][#a][#b][#c][#d]% + {\edef\currentlayoutelement{#vertical:#horizontal}% + \setlayoutelementparameter\c!lefttext {\page_layouts_process_element_single{#a}}% + \setlayoutelementparameter\c!righttext{\page_layouts_process_element_single{#b}}} + +\unexpanded\def\page_layouts_setup_text_three[#vertical][#horizontal][#a][#b][#c][#d]% + {\edef\currentlayoutelement{#vertical:\v!text}% + \setlayoutelementparameter\c!lefttext {\page_layouts_process_element_single{#horizontal}}% + \setlayoutelementparameter\c!righttext{\page_layouts_process_element_single{#a}}} + +\unexpanded\def\page_layouts_setup_text_two[#vertical][#horizontal][#a][#b][#c][#d]% + {\edef\currentlayoutelement{#vertical:\v!text}% + \resetlayoutelementparameter\c!lefttext + \resetlayoutelementparameter\c!righttext + \setlayoutelementparameter \c!middletext{\page_layouts_process_element_single{#horizontal}}} + +\unexpanded\def\page_layouts_setup_text_one[#vertical][#horizontal][#a][#b][#c][#d]% + {\edef\currentlayoutelement{#vertical:\v!text}% + \resetlayoutelementparameter\c!lefttext + \resetlayoutelementparameter\c!righttext + \resetlayoutelementparameter\c!middletext + \edef\currentlayoutelement{#vertical:\v!margin}% + \resetlayoutelementparameter\c!lefttext + \resetlayoutelementparameter\c!righttext + \resetlayoutelementparameter\c!middletext + \edef\currentlayoutelement{#vertical:\v!edge}% + \resetlayoutelementparameter\c!lefttext + \resetlayoutelementparameter\c!righttext + \resetlayoutelementparameter\c!middletext} + +\unexpanded\def\page_layouts_setup_texts + {\ifsixthargument \expandafter\page_layouts_setup_text_six \orelse + \iffifthargument \expandafter\page_layouts_setup_text_five \orelse + \iffourthargument\expandafter\page_layouts_setup_text_four \orelse + \ifthirdargument \expandafter\page_layouts_setup_text_three\orelse + \ifsecondargument\expandafter\page_layouts_setup_text_two \else + \expandafter\page_layouts_setup_text_one \fi} + +%D Left and right texts are swapped on odd and even pages, but only when double +%D sided typesetting is enabled. + +\setvalue{\??layouttextstrut\v!yes}{\setstrut\strut} % maybe more variants + +\let\m_page_layouts_element_content\empty + +\unexpanded\def\page_layouts_process_element_single#content% + {\edef\m_page_layouts_element_content{\detokenize{#content}}% so no \v!xxx + \ifcsname\??layouttextspecial\m_page_layouts_element_content\endcsname + \lastnamedcs + \else + \doifelsemarking\m_page_layouts_element_content + {\getmarking[\m_page_layouts_element_content][\v!first]}% + {#content}% + \fi} + +\unexpanded\def\page_layouts_process_element_double#first#second% + {\doifelseoddpage + {\page_layouts_process_element_single{#first}} + {\page_layouts_process_element_single{#second}}} + +\unexpanded\def\page_layouts_process_element_indeed#style#color#width% + {\begingroup + \uselayoutelementstyleandcolor#style#color% + \begincsname\??layouttextstrut\layoutelementparameter\c!strut\endcsname + \ignorecrlf + \edef\currentlayoutelementwidth{\layoutelementparameter#width}% + \ifx\currentlayoutelementwidth\empty\else + \expandafter\page_layouts_process_element_limited + \fi\p_text + \endgroup} + +\def\page_layouts_process_element_limited#content% are the {}{}{} still needed? +% {\limitatetext{#content{}{}{}}\currentlayoutelementwidth\unknown} + {\limitated + left \currentlayoutelementwidth + text {#content} + sentinel {\unknown} + \relax} + +\setvalue{\??layouttextspecial\v!pagenumber}{\page_layouts_place_page_number} +\setvalue{\??layouttextspecial\v!date }{\currentdate} + +%D When specified, the texts are automatically limited in length. + +\appendtoks \page_layouts_place_text_line\v!top \topheight \to \toptextcontent +\appendtoks \page_layouts_place_text_line\v!header\headerheight \to \headertextcontent +\appendtoks \page_layouts_place_text_line\v!text \textheight \to \texttextcontent +\appendtoks \page_layouts_place_text_line\v!footer\footerheight \to \footertextcontent +\appendtoks \page_layouts_place_text_line\v!bottom\bottomheight \to \bottomtextcontent + +%D Texts can be disabled, moved up and ignored, depending in the \type {status} +%D variable. This is handled by the next couple of macros. + +\newcount\c_page_layouts_element_state_n + +\def\page_layouts_set_element_status#vertical% + {\c_page_layouts_element_state_n=0\namedlayoutelementparameter#vertical\c!n\relax + \ifcase\c_page_layouts_element_state_n + \edef\textlinestatus{\namedlayoutelementparameter#vertical\c!state}% + \else + \setxvalue{\namedlayoutelementhash#vertical\c!n}{\the\numexpr\c_page_layouts_element_state_n+\minusone}% + \let\textlinestatus\v!stop + \fi} + +\appendtoks + \doifinset\v!header\floatspecification{\setxvalue{\namedlayoutelementhash\v!header\c!n}{1}}% + \doifinset\v!footer\floatspecification{\setxvalue{\namedlayoutelementhash\v!footer\c!n}{1}}% +\to \everybeforeflushedpagefloat + +\unexpanded\def\page_layouts_place_text_line#vertical% + {\page_layouts_set_element_status#vertical\relax + \ifcsname\??layouttextsline\textlinestatus\endcsname + \expandafter\lastnamedcs + \else + \expandafter\page_layouts_place_text_line_unknown + \fi#vertical} + +\unexpanded\def\doifelselayouttextline#vertical% shown or not + {\edef\currentlayoutelementstate{\namedlayoutelementparameter{#vertical}\c!state}% + \ifx\currentlayoutelementstate\v!normal + \expandafter\firstoftwoarguments + \orelse\ifx\currentlayoutelementstate\v!start + \expandafter\firstoftwoarguments + \else + \expandafter\secondoftwoarguments + \fi} + +\unexpanded\def\doifelselayoutsomeline#vertical% present or not + {\edef\currentlayoutelementstate{\namedlayoutelementparameter{#vertical}\c!state}% + \ifx\currentlayoutelementstate\v!none + \expandafter\secondoftwoarguments + \orelse\ifx\currentlayoutelementstate\v!high + \expandafter\secondoftwoarguments + \else + \expandafter\firstoftwoarguments + \fi} + +\let\doiflayouttextlineelse\doifelselayouttextline +\let\doiflayoutsomelineelse\doifelselayoutsomeline + +\newconditional\resyncaftertextline + +\setvalue{\??layouttextsline\v!normal}{\page_layouts_place_text_line_indeed} +\setvalue{\??layouttextsline\empty }{\page_layouts_place_text_line_indeed} + +\letvalue{\??layouttextsline\v!none}\gobbletwoarguments +\letvalue{\??layouttextsline\v!stop}\gobbletwoarguments + +\setvalue{\??layouttextsline\v!high}#vertical#height% + {\global\settrue\resyncaftertextline + \page_layouts_reset_element_status#vertical} + +\setvalue{\??layouttextsline\v!empty}#vertical#height% + {\page_layouts_reset_element_status#vertical} + +\setvalue{\??layouttextsline\v!start}#vertical#height% + {\page_layouts_reset_element_status#vertical% + \page_layouts_place_text_line_indeed#vertical#height} + +\setvalue{\??layouttextsline\v!nomarking}#vertical#height% + {\bgroup + \page_layouts_reset_element_status#vertical% + \settrue\inhibitgetmarking + \page_layouts_place_text_line_indeed#vertical#height% + \egroup} + +% \setupheadertexts [11] +% \definetext [title] [header] [aa] +% \setupheadertexts [11] [22] +% \definetext [title] [header] [aa] [bb] +% \setupheadertexts [text] [11] [22] +% \definetext [title] [header] [text] [aa] [bb] +% \setupheadertexts [11] [22] [33] [44] +% \definetext [title] [header] [aa] [bb] [cc] [dd] +% \setupheadertexts [text] [11] [22] [33] [44] +% \definetext [title] [header] [text] [aa] [bb] [cc] [dd] + +\def\page_layouts_place_text_line_unknown#vertical#height% + {\global\settrue\resyncaftertextline + \begingroup % new + \page_layouts_reset_element_status#vertical% + \begincsname\namedlayoutelementhash{#vertical}\textlinestatus\endcsname + \begincsname\namedlayoutelementhash{#vertical:\v!text}\textlinestatus\endcsname + \begincsname\namedlayoutelementhash{#vertical:\v!margin}\textlinestatus\endcsname + \begincsname\namedlayoutelementhash{#vertical:\v!edge}\textlinestatus\endcsname + \page_layouts_place_text_line_indeed#vertical#height% + \endgroup} + +\letvalue{\??layouttextsline\s!unknown}\page_layouts_place_text_line_unknown + +%D The following macro has to be called after a page is flushed. + +\unexpanded\def\resetlayouttextlines % public + {\begincsname\??layouttextsreset\v!top \endcsname + \begincsname\??layouttextsreset\v!header\endcsname + \begincsname\??layouttextsreset\v!text \endcsname + \begincsname\??layouttextsreset\v!footer\endcsname + \begincsname\??layouttextsreset\v!bottom\endcsname + \ifconditional\resyncaftertextline + \calculateglobalvsizes + \page_backgrounds_recalculate + \global\setfalse\resyncaftertextline + \fi} + +\def\getspecificlayouttext#vertical#horizontal#what% + {\begincsname\namedlayoutelementhash{#vertical:#horizontal}#what\endcsname} + +% \settext[header][text][middle][xxx][yyy] + +\unexpanded\def\settextcontent + {\doquintupleempty\page_layouts_set_text_content} + +\def\page_layouts_set_text_content[#vertical][#horizontal][#one][#two][#three]% header text middle text/text + {\iffifthargument + \setvalue{\namedlayoutelementhash{#vertical:#horizontal}\begincsname\??layouttextcontent\v!text:#one\endcsname\c!middletext}% + {\page_layouts_process_element_double{#two}{#three}}% + \orelse\iffourthargument + \setvalue{\namedlayoutelementhash{#vertical:#horizontal}\begincsname\??layouttextcontent\v!text:#one\endcsname\c!middletext}% + {\page_layouts_process_element_double{#two}{#two}}% + \orelse\ifthirdargument + \setvalue{\namedlayoutelementhash{#vertical:#horizontal}\c!middletext}% + {\page_layouts_process_element_double{#one}{#one}}% + \fi} + +\let\currentlayoutelement\relax + +\unexpanded\def\resettextcontent + {\dotripleempty\page_layouts_reset_text_content} + +\def\page_layouts_reset_text_content[#vertical][#horizontal][#tag]% header text middle + {\edef\currentlayoutelement{#vertical:#horizontal}% + \ifthirdargument + \letvalueempty{\layoutelementhash\begincsname\??layouttextcontent\v!text:#tag\endcsname\c!middletext}% + \orelse\ifsecondargument + \resetlayoutelementparameter\c!lefttext + \resetlayoutelementparameter\c!middletext + \resetlayoutelementparameter\c!righttext + \fi} + +\letvalue{\??layouttextcontent\v!text:\c!middle}\c!middletext +\letvalue{\??layouttextcontent\v!text:\c!left }\c!lefttext +\letvalue{\??layouttextcontent\v!text:\c!right }\c!righttext + +%D The placement of a whole line is handled by the next two macros. These are hooked +%D into the general purpose token list registers mentioned before. + +\let\currentlayouttextline\relax + +\def\page_layouts_place_text_line_indeed#vertical#height% + {\let\currentlayouttextline#vertical% + \ifdim#height>\zeropoint\relax % prevents pagenumbers when zero height + \page_layouts_place_text_line_left_or_right{#height}% + \fi} + +\def\page_layouts_place_text_line_left_or_right#height% + {\goleftonpage + \setbox\b_page_layouts_element\vbox to #height + {\vsize#height\relax + %\hsize\zeropoint % hack so that e.g. after=\hairline gives predictable results + \hsize\totaltextwidth + \normalbaselines + \let\\\ignoredlinebreak + \let\crlf\ignoredlinebreak + \namedlayoutelementparameter\currentlayouttextline\c!before + \doifbothsidesoverruled + \page_layouts_place_text_line_right + \page_layouts_place_text_line_right + \page_layouts_place_text_line_left + \namedlayoutelementparameter\currentlayouttextline\c!after + \vkern\zeropoint}% keep the \dp, beware of \vtops, never change this! + \dp\b_page_layouts_element\zeropoint + \box\b_page_layouts_element + \vkern-#height\relax} + +\let\page_layouts_place_extra_text_left \empty % historic +\let\page_layouts_place_extra_text_right\empty % historic + +\def\page_layouts_place_text_line_right + {\hpack + {\ifdim\leftedgewidth>\zeropoint + \page_layouts_left_edge_element\c!lefttext\c!leftstyle\c!leftcolor\c!leftwidth + \fi + \ifdim\leftmarginwidth>\zeropoint + \page_layouts_left_margin_element\c!lefttext\c!leftstyle\c!leftcolor\c!leftwidth\zerocount + \fi + \ifdim\makeupwidth>\zeropoint + \page_layouts_text_body_element_l_m_r_e + \fi + \ifdim\rightmarginwidth>\zeropoint + \page_layouts_right_margin_element\c!righttext\c!rightstyle\c!rightcolor\c!rightwidth\plusone + \fi + \ifdim\rightedgewidth>\zeropoint + \page_layouts_right_edge_element\c!righttext\c!rightstyle\c!rightcolor\c!rightwidth + \fi}} + +\def\page_layouts_place_text_line_left + {\hpack + {\ifdim\leftedgewidth>\zeropoint + \page_layouts_left_edge_element\c!righttext\c!rightstyle\c!rightcolor\c!rightwidth + \fi + \ifdim\leftmarginwidth>\zeropoint + \page_layouts_left_margin_element\c!righttext\c!rightstyle\c!rightcolor\c!rightwidth\zerocount + \fi + \ifdim\makeupwidth>\zeropoint + \page_layouts_text_body_element_e_r_m_l + \fi + \ifdim\rightmarginwidth>\zeropoint + \page_layouts_right_margin_element\c!lefttext\c!leftstyle\c!leftcolor\c!leftwidth\plusone + \fi + \ifdim\rightedgewidth>\zeropoint + \page_layouts_right_edge_element\c!lefttext\c!leftstyle\c!leftcolor\c!leftwidth + \fi}} + +\def\page_layouts_left_edge_element_indeed#text#style#color#width% + {\letfromlayoutelementparameter\p_text#text% + \ifx\p_text\empty\else + \hbox to \leftedgewidth\bgroup + \hss + \page_layouts_process_element_indeed#style#color#width% + \egroup + \else + \kern\leftedgewidth + \fi} + +\def\page_layouts_left_edge_element#text#style#color#width% + {\edef\currentlayoutelement{\currentlayouttextline:\v!edge}% + \page_layouts_place_element_indeed\leftedgewidth + {\page_layouts_left_edge_element_indeed#text#style#color#width}% + \kern\leftedgedistance} + +\def\page_layouts_right_edge_element_indeed#text#style#color#width% + {\letfromlayoutelementparameter\p_text#text% + \ifx\p_text\empty\else + \hbox to \rightedgewidth\bgroup + \page_layouts_process_element_indeed#style#color#width% + \hss + \egroup + \else + \kern\rightedgewidth + \fi} + +\def\page_layouts_right_edge_element#text#style#color#width% + {\edef\currentlayoutelement{\currentlayouttextline:\v!edge}% + \kern\rightedgedistance + \page_layouts_place_element_indeed\rightedgewidth + {\page_layouts_right_edge_element_indeed#text#style#color#width}} + +% margin needs checking! + +\def\page_layouts_left_margin_element_indeed#text#style#color#width#margintoo% + {\letfromlayoutelementparameter\p_text#text% + \ifx\p_text\empty + \kern\leftmarginwidth + \else + \hbox to \leftmarginwidth\bgroup + \hss + \page_layouts_process_element_indeed#style#color#width% + \egroup + \fi + \ifcase#margintoo\or + \letfromlayoutelementparameter\p_text\c!margintext + \ifx\p_text\empty\else + \kern-\leftmarginwidth + \hbox to \leftmarginwidth\bgroup + \hss + \p_text % styling ? + \egroup + \fi + \fi} + +\def\page_layouts_left_margin_element#text#style#color#width#margintoo% + {\edef\currentlayoutelement{\currentlayouttextline:\v!margin}% + \page_layouts_place_element_indeed\leftmarginwidth + {\page_layouts_left_margin_element_indeed#text#style#color#width#margintoo}% + \kern\leftmargindistance} + +\def\page_layouts_right_margin_element_indeed#text#style#color#width#margintoo% + {\letfromlayoutelementparameter\p_text#text% + \ifx\p_text\empty + \kern\rightmarginwidth + \else + \hbox to \rightmarginwidth\bgroup + \page_layouts_process_element_indeed#style#color#width% + \hss + \egroup + \fi + \ifcase#margintoo\or + \letfromlayoutelementparameter\p_text\c!margintext + \ifx\p_text\empty\else + \kern-\rightmarginwidth + \hbox to \rightmarginwidth\bgroup + \p_text % ? styling + \hss + \egroup + \fi + \fi} + +\def\page_layouts_right_margin_element#text#style#color#width#margintoo% + {\edef\currentlayoutelement{\currentlayouttextline:\v!margin}% + \kern\rightmargindistance + \page_layouts_place_element_indeed\rightmarginwidth + {\page_layouts_right_margin_element_indeed#text#style#color#width#margintoo}} + +\def\page_layouts_text_body_element_indeed_l_m_r_e + {\letfromlayoutelementparameter\p_text\c!lefttext + \ifx\p_text\empty + \ifx\page_layouts_place_extra_text_left\empty\else + \hbox to \makeupwidth\bgroup + \page_layouts_place_extra_text_left + \hss + \egroup + \kern-\makeupwidth + \fi + \else + \hbox to \makeupwidth\bgroup + \page_layouts_place_extra_text_left + \page_layouts_process_element_indeed\c!leftstyle\c!leftcolor\c!leftwidth% + \hss + \egroup + \kern-\makeupwidth + \fi + \letfromlayoutelementparameter\p_text\c!middletext + \ifx\p_text\empty\else + \hbox to \makeupwidth\bgroup + \hss + \page_layouts_process_element_indeed\c!middlestyle\c!middlecolor\c!middlewidth% + \hss + \egroup + \kern-\makeupwidth + \fi + \letfromlayoutelementparameter\p_text\c!righttext + \ifx\p_text\empty + \kern\makeupwidth + \else + \hbox to \makeupwidth\bgroup + \hss + \page_layouts_process_element_indeed\c!rightstyle\c!rightcolor\c!rightwidth% + \egroup + \fi} + +\def\page_layouts_text_body_element_indeed_e_r_m_l + {\letfromlayoutelementparameter\p_text\c!righttext + \ifx\p_text\empty\else + \hbox to \makeupwidth\bgroup + \page_layouts_process_element_indeed\c!rightstyle\c!rightcolor\c!rightwidth% + \hss + \egroup + \kern-\makeupwidth + \fi + \letfromlayoutelementparameter\p_text\c!middletext + \ifx\p_text\empty\else + \hbox to \makeupwidth\bgroup + \hss + \page_layouts_process_element_indeed\c!middlestyle\c!middlecolor\c!middlewidth% + \hss + \egroup + \kern-\makeupwidth + \fi + \letfromlayoutelementparameter\p_text\c!lefttext + \ifx\p_text\empty + \ifx\page_layouts_place_extra_text_right\empty + \kern\makeupwidth + \else + \hbox to \makeupwidth\bgroup + \hss + \page_layouts_place_extra_text_right + \egroup + \fi + \else + \hbox to \makeupwidth\bgroup + \hss + \page_layouts_process_element_indeed\c!leftstyle\c!leftcolor\c!leftwidth% + \page_layouts_place_extra_text_right + \egroup + \fi} + +\def\page_layouts_text_body_element_l_m_r_e + {\edef\currentlayoutelement{\currentlayouttextline:\v!text}% + \page_layouts_place_element_indeed\makeupwidth\page_layouts_text_body_element_indeed_l_m_r_e} + +\def\page_layouts_text_body_element_e_r_m_l + {\edef\currentlayoutelement{\currentlayouttextline:\v!text}% + \page_layouts_place_element_indeed\makeupwidth\page_layouts_text_body_element_indeed_e_r_m_l} + +\def\page_layouts_place_element_indeed#width#content% + {\vbox % to \vsize + {\hsize#width\relax + \layoutelementparameter\c!before + \setlayoutcomponentattribute\currentlayoutelement + \hbox \layoutcomponentboxattribute to #width{#content}% + \layoutelementparameter\c!after}} + +%D Although it is far better to use backgrounds for this purpose, one can add a rule +%D in the following way. This method makes the rules disappear in case of an empty +%D text line. Consider this a feature. +%D +%D \starttyping +%D \setupheadertexts[left][right] +%D +%D \setupheader[text][after=\hrule,style=bold] +%D +%D \starttext +%D \input tufte \page +%D \setupheader[state=empty] +%D \input tufte \page +%D \stoptext +%D \stoptyping + +%D This code will move to \type {page-flt.tex}. + +\appendtoks \placerightmarginblock \kern-\rightmarginwidth \to \rightmargintextcontent +\appendtoks \placeleftmarginblock \kern-\leftmarginwidth \to \leftmargintextcontent + +%D \macros +%D {definetext} +%D +%D Some macros ago, we implemented the \type {status} option \type {unknown}. This +%D one is used to take care of symbolic texts handlers. +%D +%D \showsetup{definetext} +%D +%D The next example demonstrates how we can use this mechanism to provide page +%D (event) dependent text lines. +%D +%D \starttyping +%D \definetext[chapter][footer][pagenumber] +%D \setuphead[chapter][header=high,footer=chapter] +%D \setupheadertexts[pagenumber] +%D \setupfootertexts[left][right] +%D \chapter{eerste} \dorecurse{20}{\input tufte \relax} +%D \chapter{tweede} \dorecurse{20}{\input tufte \relax} +%D \stoptyping + +\unexpanded\def\definetext + {\doseventupleempty\page_layouts_define_text} + +\def\page_layouts_define_text[#tag][#vertical][#horizontal][#a][#b][#c][#d]% + {\ifseventhargument + \setvalue{\namedlayoutelementhash{#vertical:#horizontal}#tag}{\page_layouts_setup_text_six {#vertical}{#horizontal}{#a}{#b}{#c}{#d}}% + \orelse\ifsixthargument + \setvalue{\namedlayoutelementhash {#vertical}#tag}{\page_layouts_setup_text_five {#vertical}{#horizontal}{#a}{#b}{#c}}% + \orelse\iffifthargument + \setvalue{\namedlayoutelementhash{#vertical:#horizontal}#tag}{\page_layouts_setup_text_four {#vertical}{#horizontal}{#a}{#b}}% + \orelse\iffourthargument + \setvalue{\namedlayoutelementhash {#vertical}#tag}{\page_layouts_setup_text_three{#vertical}{#horizontal}{#a}}% + \else + \setvalue{\namedlayoutelementhash {#vertical}#tag}{\page_layouts_setup_text_two {#vertical}{#horizontal}}% + \fi} + +%D A few more page breakers: + +\installpagebreakmethod \v!empty + {\page_otr_flush_all_floats + \page_otr_command_next_page + \doifnot{\namedlayoutelementparameter\v!header\c!state}\v!stop{\setuplayoutelement[\v!header][\c!state=\v!empty]}% + \doifnot{\namedlayoutelementparameter\v!footer\c!state}\v!stop{\setuplayoutelement[\v!footer][\c!state=\v!empty]}% + \page_otr_insert_dummy_page} + +\installpagebreakmethod \v!header + {\doifnot{\namedlayoutelementparameter\v!header\c!state}\v!stop{\setuplayoutelement[\v!header][\c!state=\v!empty]}} + +\installpagebreakmethod \v!footer + {\doifnot{\namedlayoutelementparameter\v!footer\c!state}\v!stop{\setuplayoutelement[\v!footer][\c!state=\v!empty]}} + +%D While the header and footer lines are moved away from the main text, the top and +%D bottom lines are centered. + +\setuplayoutelement[\v!top ][\c!state=\v!normal,\c!n=0,\c!before=\vss,\c!after=\vss,\c!strut=] +\setuplayoutelement[\v!header][\c!state=\v!normal,\c!n=0,\c!before=, \c!after=\vss,\c!strut=\v!yes] +\setuplayoutelement[\v!text ][\c!state=\v!normal,\c!n=0,\c!before=\vss,\c!after=\vss,\c!strut=] +\setuplayoutelement[\v!footer][\c!state=\v!normal,\c!n=0,\c!before=\vss,\c!after=, \c!strut=\v!yes] +\setuplayoutelement[\v!bottom][\c!state=\v!normal,\c!n=0,\c!before=\vss,\c!after=\vss,\c!strut=] + +%D Moved here from strc-pag: +%D +%D We reset a previous location but only when it has a pagenumber associated. This +%D is a rather messy test but better than the MkII way where we use states and keep +%D settings. + +\let\m_page_layouts_page_number_location \relax +\let\m_page_layouts_page_number_location_v\relax +\let\m_page_layouts_page_number_location_h\relax +\let\m_page_layouts_page_number_location_x\relax + +\def\page_layouts_place_page_number % also elsewhere .. beware, not \unexpanded else + {\strc_pagenumbers_place_location} % test below fails + +\def\page_layouts_reset_page_number_location + {\ifx\m_page_layouts_page_number_location_v\relax\else + \edef\currentlayoutelement{\m_page_layouts_page_number_location_v:\m_page_layouts_page_number_location_h}% + \edef\page_layouts_previous_page_number_locator{\detokenizedlayoutelementparameter\m_page_layouts_page_number_location_x}% + \doif{\meaning\page_layouts_previous_page_number_locator}{\meaning\page_layouts_place_page_number} + {\resetlayoutelementparameter\m_page_layouts_page_number_location_x}% + \fi} + +\def\page_layouts_set_page_number_location + {\edef\currentlayoutelement{\m_page_layouts_page_number_location_v:\m_page_layouts_page_number_location_h}% + \letlayoutelementparameter\m_page_layouts_page_number_location_x\page_layouts_place_page_number + \ifx\m_page_layouts_page_number_location_x\c!marginedgetext + \let\page_layouts_place_extra_text_left \page_layouts_place_page_number_left + \let\page_layouts_place_extra_text_right\page_layouts_place_page_number_right + \else + \let\page_layouts_place_extra_text_left \empty + \let\page_layouts_place_extra_text_right\empty + \fi} + +\def\page_layouts_identify_page_number_location + {\let\m_page_layouts_page_number_location_v\v!footer + \let\m_page_layouts_page_number_location_h\v!text + \let\m_page_layouts_page_number_location_x\c!middletext + \processallactionsinset[\directpagenumberingparameter\c!location] + [ \v!header=>\let\m_page_layouts_page_number_location_v\v!header, + \v!footer=>\let\m_page_layouts_page_number_location_v\v!footer, + \v!middle=>\let\m_page_layouts_page_number_location_h\v!text + \let\m_page_layouts_page_number_location_x\c!middletext, + \v!left=>\let\m_page_layouts_page_number_location_h\v!text + \let\m_page_layouts_page_number_location_x\c!lefttext, + \v!right=>\let\m_page_layouts_page_number_location_h\v!text + \let\m_page_layouts_page_number_location_x\c!righttext, + \v!inleft=>\let\m_page_layouts_page_number_location_h\v!margin + \let\m_page_layouts_page_number_location_x\c!lefttext, + \v!inright=>\let\m_page_layouts_page_number_location_h\v!margin + \let\m_page_layouts_page_number_location_x\c!righttext, + \v!inmargin=>\let\m_page_layouts_page_number_location_h\v!margin + \def\m_page_layouts_page_number_location_x{\ifdoublesided\c!margintext\else\c!righttext\fi}, + \v!margin=>\let\m_page_layouts_page_number_location_h\v!margin + \def\m_page_layouts_page_number_location_x{\ifdoublesided\c!margintext\else\c!righttext\fi}, + \v!atmargin=>\let\m_page_layouts_page_number_location_h\v!text + \let\m_page_layouts_page_number_location_x\c!marginedgetext, + \v!marginedge=>\let\m_page_layouts_page_number_location_h\v!text + \let\m_page_layouts_page_number_location_x\c!marginedgetext]} + +\unexpanded\def\strc_pagenumbers_set_location + {\edef\p_strc_pagenumbers_location{\directpagenumberingparameter\c!location}% + \ifx\p_strc_pagenumbers_location\m_page_layouts_page_number_location + % unchanged + \else + \let\m_page_layouts_page_number_location\p_strc_pagenumbers_location + \page_layouts_reset_page_number_location + \ifx\p_strc_pagenumbers_location\empty + % set otherwise + \orelse\ifx\p_strc_pagenumbers_location\v!none + % set otherwise + \else + \page_layouts_identify_page_number_location + \page_layouts_set_page_number_location + \fi + \fi} + +\def\page_layouts_place_page_number_left % historic + {\begingroup + \setbox\scratchbox\hbox{\ignorespaces\layoutelementparameter\c!marginedgetext\removeunwantedspaces}% + \ifzeropt\wd\scratchbox\else + \edef\p_strc_pagenumbers_width{\directpagenumberingparameter\c!width}% + \ifx\p_strc_pagenumbers_width\empty + \box\scratchbox\tfskip + \else + \hpack to \p_strc_pagenumbers_width{\box\scratchbox\hss}% + \fi + \fi + \endgroup} + +\def\page_layouts_place_page_number_right % historic + {\begingroup + \setbox\scratchbox\hbox{\ignorespaces\layoutelementparameter\c!marginedgetext\removeunwantedspaces}% + \ifzeropt\wd\scratchbox\else + \edef\p_strc_pagenumbers_width{\directpagenumberingparameter\c!width}% + \ifx\p_strc_pagenumbers_width\empty + \tfskip\box\scratchbox + \else + \hpack to \p_strc_pagenumbers_width{\hss\box\scratchbox}% + \fi + \fi + \endgroup} + +\strc_pagenumbers_set_location % initializes + +\newbox\b_page_layouts_element + +\def\page_layouts_insert_elements + {\ifcase\pageornamentstate + \page_layouts_place_elements_indeed % we could have a special flag for always ignored + \fi} + +\def\page_layouts_place_elements_indeed + {\setbox\b_page_layouts_element\vpack + {\dontcomplain + \calculatereducedvsizes + \swapmargins + \offinterlineskip + \vkern\dimexpr-\topheight-\topdistance\relax + \the\toptextcontent + \vkern\dimexpr\topheight+\topdistance\relax + \the\headertextcontent + \vkern\dimexpr\headerheight+\headerdistance+\textdistance\relax + \anch_positions_place_anchors + \vkern\dimexpr-\textdistance-\textheight\relax + \the\texttextcontent + \vkern\textheight + \the\everyendoftextbody + \vkern\footerdistance + \the\footertextcontent + \vkern\dimexpr\footerheight+\bottomdistance\relax + \the\bottomtextcontent + \vkern\bottomheight + \vfilll}% + \smashbox\b_page_layouts_element + \box\b_page_layouts_element} + +% \ifdefined\page_prepare_backgrounds\else +% \let\page_prepare_backgrounds\gobbleoneargument +% \fi + +% only for very special controlled cases or experiments: + +\let\page_scale_text_box\gobbleoneargument + +\def\page_insert_body#1#2% + {\setbox\b_page_layouts_element\vpack + {\offinterlineskip + \calculatereducedvsizes + \calculatehsizes + \swapmargins + \vkern\dimexpr\headerheight+\headerdistance+\textdistance\relax + \dontleavehmode + %\page_prepare_backgrounds{#2}% + \hpack to \makeupwidth + {\begingroup + \swapmargins + \goleftonpage + \ifdim\leftedgewidth>\zeropoint + \the\leftedgetextcontent + \kern\dimexpr\leftedgewidth+\leftedgedistance\relax + \fi + \ifdim\leftmarginwidth>\zeropoint + \the\leftmargintextcontent + \kern\dimexpr\leftmarginwidth+\leftmargindistance\relax + \fi + \endgroup + \page_postprocessors_page{#2}% + \settextpagecontent\b_page_layouts_element{#1}{#2}% + \page_backgrounds_add_to_text\b_page_layouts_element + \page_grids_add_to_box\b_page_layouts_element + \page_scale_text_box\b_page_layouts_element + \box\b_page_layouts_element + \begingroup + \ifdim\rightmarginwidth>\zeropoint + \kern\rightmargindistance + \the\rightmargintextcontent + \kern\rightmarginwidth + \fi + \ifdim\rightedgewidth>\zeropoint + \kern\rightedgedistance + \the\rightedgetextcontent + \kern\rightedgewidth + \fi + \endgroup + \hss}}% + \smashbox\b_page_layouts_element + \box\b_page_layouts_element} + +%D The main text area has to be combined with some additional (tracing) information. +%D +%D This will be stored as normal and overloaded in page-lyr and later in page-spr we +%D overload the the stored version .. evenatually i will clear up the experimental +%D mess. + +\def\settextpagecontent#1#2#3% #2 and #3 will disappear / is overloaded + {\setbox#1\hpack to \makeupwidth + {\hss % so don't change this + \setlayoutcomponentattribute{\v!page:\v!text}% + \vpack \layoutcomponentboxattribute to \textheight + {\offinterlineskip + \freezetextwidth + \hsize\textwidth % local variant of \sethsize <<< in columns? + \boxmaxdepth\maxdepth + \noindent % content can be < \hsize + \page_otr_command_package_contents#2#3}% this will vbox + \hss}% + \dp#1\zeropoint} + +\protect \endinput |