2016-01-12 16:26:00

1 files changed, 47 insertions, 0 deletions

diff --git a/metapost/context/base/mpiv/mp-figs.mpiv b/metapost/context/base/mpiv/mp-figs.mpiv
new file mode 100644
index 000000000..aac7c5ad2
--- /dev/null
+++ b/metapost/context/base/mpiv/mp-figs.mpiv
@@ -0,0 +1,47 @@
+%D \module
+%D   [       file=mp-figs.mpiv,
+%D        version=2003.01.15,
+%D          title=\CONTEXT\ \METAPOST\ graphics,
+%D       subtitle=figures,
+%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 licen-en.pdf for
+%C details.
+
+if known context_figs : endinput ; fi ;
+
+boolean context_figs ; context_figs := true ;
+
+% todo: check defined
+
+def registerfigure(expr name,width,height) =
+    begingroup ;
+    save s ; string s ; s := cleanstring(name) ;
+    scantokens( s & "_width  := " & decimal(width )) ;
+    scantokens( s & "_height := " & decimal(height)) ;
+    endgroup ;
+enddef ;
+
+vardef figuresize(expr name) =
+    save s, p ; string s ; pair p ;
+    s := cleanstring(name) ;
+    scantokens( "p := " & "(" & s & "_width" & "," & s & "_height" & ")" ) ;
+    p
+enddef ;
+
+vardef figurewidth(expr name) =
+    xpart figuresize(name)
+enddef ;
+
+vardef figureheight(expr name) =
+    ypart figuresize(name)
+enddef ;
+
+let figuredimensions = figuresize ; % for old times sake
+
+def naturalfigure(expr name) =
+    externalfigure name xyscaled(figuresize(name))
+enddef ;