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Diffstat (limited to 'tex/context/base/mkiv/spac-grd.mkxl')
| -rw-r--r-- | tex/context/base/mkiv/spac-grd.mkxl | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/tex/context/base/mkiv/spac-grd.mkxl b/tex/context/base/mkiv/spac-grd.mkxl deleted file mode 100644 index fbb02f50c..000000000 --- a/tex/context/base/mkiv/spac-grd.mkxl +++ /dev/null @@ -1,375 +0,0 @@ -%D \module -%D [ file=spac-grd, -%D version=2009.10.16, % 1998.03.10, was core-grd.tex -%D title=\CONTEXT\ Spacing Macros, -%D subtitle=Grid Snapping, -%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. - -%D This module will be merged into spac-ver.mkiv. - -\writestatus{loading}{ConTeXt Spacing Macros / Grid Snapping} - -\unprotect - -%D A rather crappy macro that we need to avoid and as such it will probably -%D disappear: - -\installcorenamespace{lastnodepusher} - -\permanent\let\poplastnode\relax - -\permanent\protected\def\pushlastnode - {\csname\??lastnodepusher - \ifcsname\??lastnodepusher\the\lastnodetype\endcsname - \the\lastnodetype - \else - \s!unknown - \fi - \endcsname} - -\setvalue{\??lastnodepusher\number\kernnodecode}% - {\enforced\permanent\protected\edef\poplastnode{\kern\the\lastkern\relax}% - \kern-\lastkern} - -\setvalue{\??lastnodepusher\number\gluenodecode}% - {\enforced\permanent\protected\edef\poplastnode{\vskip\the\lastskip\relax}% - \vskip-\lastskip} - -\setvalue{\??lastnodepusher\number\penaltynodecode}% - {\enforced\permanent\protected\edef\poplastnode{\penalty\the\lastpenalty\relax}% - \nobreak} - -\setvalue{\??lastnodepusher\s!unknown}% - {\enforced\permanent\let\poplastnode\relax} - -%D Moved from supp-box: - -%D \macros -%D {startbaselinecorrection,baselinecorrection, -%D showbaselinecorrection,offbaselinecorrection} -%D -%D Spacing around ruled boxes can get pretty messed up. The -%D next macro tries as good as possible to fix this. -%D -%D \startbuffer[1] -%D \startbaselinecorrection -%D \ruledhbox{Rule Brittanica} -%D \stopbaselinecorrection -%D \stopbuffer -%D -%D \typebuffer[1] -%D -%D The macros put some white space around the box: -%D -%D \getbuffer[1] -%D -%D A simple alternative is \type {\baselinecorrection}, which -%D only looks at the previous line. -%D -%D \startbuffer[2] -%D \baselinecorrection -%D \ruledhbox{Rule Brittanica} -%D \baselinecorrection -%D \stopbuffer -%D -%D \typebuffer[2] -%D -%D This time the last preceding line gets a correction,% -%D dependant on the depth. -%D -%D \getbuffer[2] -%D -%D One can make the correction visible by saying \type -%D {\showbaselinecorrection}. Part of the correction is -%D calculated from the dimensions of a~(. One can disble the -%D correction by calling \type {\offbaselinecorrection}. -%D -%D When visualize the first example looks like: -%D -%D {\showbaselinecorrection\getbuffer[1]} -%D -%D and the second one comes out as: -%D -%D {\showbaselinecorrection\getbuffer[2]} - -% \definecolor[GridLineColor][red] -% \definecolor[GridTextColor][blue] - -\newdimen\d_spac_lines_correction_before -\newdimen\d_spac_lines_correction_after - -\newbox \b_spac_lines_correction_before -\newbox \b_spac_lines_correction_after - -\def\spac_lines_initialize_corrections - {\setbox\b_spac_lines_correction_before\hpack{\setstrut\strut}% - \setbox\b_spac_lines_correction_after \hbox {(}% - \d_spac_lines_correction_before\dimexpr\ht\b_spac_lines_correction_before-\ht\b_spac_lines_correction_after\relax - \d_spac_lines_correction_after \dimexpr\dp\b_spac_lines_correction_before-\dp\b_spac_lines_correction_after\relax - \ifdim\d_spac_lines_correction_before<\zeropoint\d_spac_lines_correction_before\zeropoint\fi - \ifdim\d_spac_lines_correction_after <\zeropoint\d_spac_lines_correction_after \zeropoint\fi} - -% experiment, todo: proper mkiv mechanism -% -% \input ward \par -% \startframedtext test \stopframedtext -% \input ward \par -% \startlinecorrection \framed{xxx} \stoplinecorrection -% \input ward \par -% -% \setupwhitespace[big] -% -% \input ward \par -% \startframedtext test \stopframedtext -% \input ward \par -% \startlinecorrection \framed{xxx} \stoplinecorrection -% \input ward \par - -% to be redone: - -\permanent\protected\def\dotopbaselinecorrection{\expandafter\blank\expandafter[\the\d_spac_lines_correction_before]} -\permanent\protected\def\dobotbaselinecorrection{\expandafter\blank\expandafter[\the\d_spac_lines_correction_after ]} - -\permanent\def\showbaselinecorrection - {\enforced\permanent\protected\def\dobaselinecorrection % visualization is not watertight! - {\bgroup - \ifdim\prevdepth>\zeropoint - \kern-\prevdepth - \fi - \setbox\scratchbox\emptyhbox - \wd\scratchbox\hsize - \dp\scratchbox\strutdp - \nointerlineskip - \forgetall - \ruledvpack{\box\scratchbox}% - \egroup - \prevdepth\strutdp}% - \enforced\permanent\protected\def\dotopbaselinecorrection{\hrule\s!height\d_spac_lines_correction_before}% - \enforced\permanent\protected\def\dobotbaselinecorrection{\hrule\s!height\d_spac_lines_correction_after }} - -% \def\dobaselinecorrection % beware, this one is redefined below -% {\ifdim\prevdepth>\zeropoint\kern-\prevdepth\fi -% \kern\strutdp -% \prevdepth\strutdp} - -\permanent\protected\def\baselinecorrection - {\endgraf - \ifvmode - \ifdim\prevdepth<\maxdimen - \ifdim\prevdepth<\zeropoint \else - \ifdim\prevdepth<\strutdepth \relax - \pushlastnode - \dobaselinecorrection - \poplastnode - \fi - \fi - \fi - \fi} - -\permanent\protected\def\pagebaselinecorrection - {\ifdim\pagegoal<\maxdimen - \ifdim\pagetotal>\lineheight % or \topskip - \scratchdimen\pagetotal - \advance\scratchdimen\lineheight - \ifdim\scratchdimen<\pagegoal - \baselinecorrection - \fi - \fi - \fi} - -\permanent\protected\def\startbaselinecorrection - {\bgroup - \enforced\let\stopbaselinecorrection\egroup - \ifcase\baselinecorrectionmode - \or % normal - \baselinecorrection - \ifvmode - \setbox\scratchbox\vbox\bgroup\ignorespaces - \enforced\let\stopbaselinecorrection\donormalstopbaselinecorrection - \fi - \or % off - \or % force - \baselinecorrection - \ifvmode - \setbox\scratchbox\vbox\bgroup\ignorespaces - \enforced\let\stopbaselinecorrection\doforcedstopbaselinecorrection - \fi - \fi} - -\permanent\let\stopbaselinecorrection\relax - -\permanent\protected\def\donormalstopbaselinecorrection % I have to check columns yet. - {\egroup - \topbaselinecorrection - \box\scratchbox - \botbaselinecorrection - \egroup} - -\permanent\protected\def\doforcedstopbaselinecorrection % I have to check columns yet. - {\egroup - \forcedtopbaselinecorrection - \box\scratchbox - \forcedbotbaselinecorrection - \egroup} - -%D We do a bit more checking than needed. The pageborder check -%D is not needed, but I want to look the visualization as good -%D as possible too. - -\setnewconstant\baselinecorrectionmode\plusone - -\permanent\protected\def\onbaselinecorrection {\baselinecorrectionmode\plusone } -\permanent\protected\def\offbaselinecorrection {\baselinecorrectionmode\plustwo } -\permanent\protected\def\forcebaselinecorrection{\baselinecorrectionmode\plusthree} - -%D \macros -%D {topbaselinecorrection,botbaselinecorrection} -%D -%D The actual top and bottom corrections are implemented as: - -\permanent\protected\def\topbaselinecorrection - {\ifvmode \ifdim\pagegoal<\maxdimen - \forcedtopbaselinecorrection - \fi \fi} - -% \permanent\protected\def\forcedtopbaselinecorrection -% {\ifvmode -% \bgroup -% \spac_lines_initialize_corrections -% \whitespace % no longer ok -% \nointerlineskip -% \dotopbaselinecorrection -% \egroup -% \fi} - -\permanent\protected\def\botbaselinecorrection - {\ifvmode - \bgroup - \spac_lines_initialize_corrections - \dobotbaselinecorrection - \allowbreak % new, otherwise problems when many in a row - \prevdepth\strutdp - \egroup - \fi} - -% nointerlineskip -% -% startpacked -% \startlinecorrection \framed{test} \stoplinecorrection -% \startlinecorrection \framed{test} \stoplinecorrection -% \stoppacked - -\permanent\protected\def\forcedtopbaselinecorrection - {\ifvmode - \bgroup - \spac_lines_initialize_corrections - \vspacing[\v!white] - %\nointerlineskip % - \dotopbaselinecorrection - \egroup - \fi} - -\permanent\protected\def\dobaselinecorrection - {\ifdim\prevdepth>\zeropoint - \vspacing[\the\dimexpr-\prevdepth+\strutdp\relax]% - \else - \vspacing[\the\dimexpr\strutdp\relax]% - \fi - \prevdepth\strutdp} - -% \permanent\protected\def\dobaselinecorrection -% {\scratchdimen\dimexpr\ifdim\prevdepth>\zeropoint-\prevdepth+\fi\strutdp\relax -% \vspacing[\the\scratchdimen]% -% \prevdepth\strutdp} -% -% some day: -% -% \permanent\protected\def\dobaselinecorrection -% {\clf_checkstrutdepth\strutdp} -% -% \permanent\protected\def\baselinecorrection -% {\endgraf -% \ifvmode -% \ifdim\prevdepth<\maxdimen -% \ifdim\prevdepth<\zeropoint \else -% \ifdim\prevdepth<\strutdepth \relax -% % works in mvl: -% % \forcestrutdepth -% % doesn't work immediately (unless enforced with penalty): -% % \pushlastnode -% % \dobaselinecorrection -% % \poplastnode -% % works ok: -% \clf_checkstrutdepth\strutdp -% \fi -% \fi -% \fi -% \fi} - -%D For the moment only with placefloats (should work in mvl and boxes): - -\permanent\protected\def\checkprevdepth - {\endgraf - \ifvmode - \ifdim\prevdepth<\maxdimen - \ifdim\prevdepth<\zeropoint \else - \ifdim\prevdepth<\strutdepth \relax - \clf_checkstrutdepth\strutdp - \fi - \fi - \fi - \fi} - -\let\normalstartbaselinecorrection\startbaselinecorrection - -\pushoverloadmode - -\permanent\protected\def\startbaselinecorrection - {\ifgridsnapping - \snaptogrid[\v!normal]\vbox\bgroup - \enforced\let\stopbaselinecorrection\egroup - \else - \normalstartbaselinecorrection - \fi} - -\popoverloadmode - -% This is new (and experimental) and might replace some of the above. beware it doesn't always work -% out well, e.g. when used grouped and such (e.g. before display math doesn't work out well). - -% \permanent\protected\def\fakenextstrutline -% {\par -% \begingroup -% \reseteverypar -% \dontleavehmode\hpack to \zeropoint{\page_sides_anchor\hss\strut}% just a tracer -% \vskip-\parskip -% \vskip-\struttotal -% \endgroup} - -% \permanent\protected\def\fakenextstrutline -% {\par -% \begingroup -% \reseteverypar -% \dontleavehmode\hpack{\strut}\par -% \clf_fakenextstrutline -% \ifdim\pagetotal>\lineheight -% \pagetotal\dimexpr\pagetotal-\lineheight\relax -% \fi -% \endgroup} - -% \permanent\protected\def\fakenextstrutline -% {\par -% \begingroup -% \reseteverypar -% \forgetall -% \dontleavehmode\hpack{\strut}\par -% \clf_removelastline -% \endgroup} - -\protect \endinput |