Enable the external inset to output different flavours of latex.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7031 a592a061-630c-0410-9148-cb99ea01b6c8

lib/ChangeLog

@@ -1,3 +1,9 @@
+2003-05-23  Angus Leeming  <leeming@lyx.org>
+
+	* external_templates: add a PDFLaTeX flavour to the xfig outputs.
+	* scripts/fig2png.py: a new and very simple script.
+	* scripts/fig2png.sh: another new and rather more sophisticated scriot.
+
 2003-05-22  Alfredo Braunstein  <abraunst@libero.it>
 
 	* ui/stdmenus.ui:

lib/external_templates

@@ -67,9 +67,15 @@ Template XFig
 	EditCommand "xfig $$FName"
 	AutomaticProduction true
 	Format LaTeX
-		Product "\\begin{picture}(0,0)\\includegraphics{$$Basename.eps}\\end{picture}\\input{$$Basename.pstex_t}"
+		Product "\\input{$$Basename.pstex_t}"
 		UpdateCommand "python $$Sysdir/scripts/fig2pstex.py $$FName $$Parameters"
-		UpdateResult "$$Basename.eps"
+		UpdateResult "$$Basename.pstex_t"
+		Requirement "graphicx"	
+	FormatEnd
+	Format PDFLaTeX
+		Product "\\begin{picture}(0,0)\\includegraphics{$$Basename}\\end{picture}"
+		UpdateCommand "python $$Sysdir/scripts/fig2png.py $$FName $$Parameters"
+		UpdateResult "$$Basename.png"
 		Requirement "graphicx"	
 	FormatEnd
 	Format Ascii

lib/scripts/fig2png.py

@@ -0,0 +1,16 @@
+#! /usr/bin/env python
+# This script converts a xfig file into PNG files
+
+import sys
+import os
+
+filename = sys.argv[1]
+basename = os.path.splitext(filename)[0]
+parameters = sys.argv[2:]
+
+pid = os.fork()
+if pid == 0:
+	os.execvp("fig2dev", ["fig2dev", "-Lpng"] + parameters + [filename, basename + ".png"])
+	print "fig2dev did not work"
+	os.exit(1)
+os.wait()

lib/scripts/fig2png.sh

@@ -0,0 +1,48 @@
+#! /bin/sh
+# converts an image from XFIG to PNG format
+# We go the long route to ensure that the image is of the highest
+# possible quality.
+
+# We expect a single arg, the name of the input file.
+test $# -eq 1 || exit 1
+
+input=`basename $1`
+base=`basename ${input} .fig`
+test ${input} = ${base} && {
+    echo Expecting an XFIG file as input
+    exit 1
+}
+
+dir=`dirname $1`
+base=${dir}/${base}
+
+# Generate the fig2dev output
+eps=${base}.eps
+pstex_t=${base}.pstex_t
+
+echo Entered FIG2PNG.SH
+
+fig2dev -Lpstex ${input} ${eps}
+fig2dev -Lpstex_t -p${base} ${input} ${pstex_t}
+
+# Convert the EPS file (free of "special" text) to PNG format using gs
+# gs is extremely fussy about the EPS files it converts, so ensure it is
+# "clean" first.
+clean_eps=${eps}.$$
+eps2eps ${eps} ${clean_eps}
+
+# Extract the width and height of the image using gs' bbox device.
+# Ie, take output that includes a line "%%BoundingBox: 0 0 <width> <height>"
+# and rewrite it as "-g<width>x<height>"
+geometry=`gs -q -dSAFER -dNOPAUSE -dBATCH -sDEVICE=bbox ${clean_eps} 2>&1 | \
+	sed '/^%%BoundingBox/! d' | cut -d' ' -f4,5 | \
+	sed 's/^\([0-9]\{1,\}\) \([0-9]\{1,\}\)$/-g\1x\2/'`
+
+# Generate the bitmap using the -g option to ensure the size is the same
+# as the original.
+# If we're using a version of gs that does not have a bbox device, then
+# $GEOMETRY = "", so there are no unwanted side effects.
+png=${base}.png
+gs -q -dSAFER -dBATCH -dNOPAUSE ${geometry} -sDEVICE=png16m \
+	-sOutputFile=${png} ${clean_eps}
+rm -f ${clean_eps} ${eps}

lib/scripts/fig2pstex.py

@@ -17,7 +17,7 @@ os.wait()
 
 pid = os.fork()
 if pid == 0:
-	os.execvp("fig2dev", ["fig2dev", "-Lpstex_t"] + parameters + [filename, basename + ".pstex_t"])
-	print "convert did not work second time"
+	os.execvp("fig2dev", ["fig2dev", "-Lpstex_t", "-p" + basename] + parameters + [filename, basename + ".pstex_t"])
+	print "fig2dev did not work the second time"
 	os.exit(1)
 os.wait()

src/insets/ChangeLog

@@ -1,3 +1,9 @@
+2003-05-23  Angus Leeming  <leeming@lyx.org>
+
+	* insetexternal.C (write): check how many lines are output.
+	(latex): use the "PDFLaTeX" flavour if outputting to pfdlatex and
+	if the template has defined it.
+
 2003-05-23  Angus Leeming  <leeming@lyx.org>
 
 	* insetquotes (validate): use the new LaTeXFeatures::useBabel() method.

src/insets/insetexternal.C

@@ -11,14 +11,16 @@
 #include <config.h>
 
 #include "insetexternal.h"
-#include "ExternalTemplate.h"
-#include "BufferView.h"
+
 #include "buffer.h"
-#include "funcrequest.h"
-#include "lyx_main.h"
-#include "LaTeXFeatures.h"
-#include "gettext.h"
+#include "BufferView.h"
 #include "debug.h"
+#include "ExternalTemplate.h"
+#include "funcrequest.h"
+#include "gettext.h"
+#include "LaTeXFeatures.h"
+#include "latexrunparams.h"
+#include "lyx_main.h"
 #include "lyxlex.h"
 #include "Lsstream.h"
 
@@ -27,6 +29,7 @@
 
 #include "support/filetools.h"
 #include "support/lstrings.h"
+#include "support/lyxalgo.h"
 #include "support/path.h"
 #include "support/systemcall.h"
 #include "support/FileInfo.h"
@@ -161,14 +164,25 @@ int InsetExternal::write(string const & format,
 	}
 
 	updateExternal(format, buf);
-	os << doSubstitution(buf, cit->second.product);
-	return 0; // CHECK  (FIXME check what ? - jbl)
+	string const str = doSubstitution(buf, cit->second.product);
+	os << str;
+	return int(lyx::count(str.begin(), str.end(),'\n') + 1);
 }
 
 
 int InsetExternal::latex(Buffer const * buf, ostream & os,
-			 LatexRunParams const &) const
+			 LatexRunParams const & runparams) const
 {
+	// If the template has specified a PDFLaTeX output, then we try and
+	// use that.
+	if (runparams.flavor == LatexRunParams::PDFLATEX) {
+		ExternalTemplate const & et = params_.templ;
+		ExternalTemplate::Formats::const_iterator cit =
+			et.formats.find("PDFLaTeX");
+		if (cit != et.formats.end())
+			return write("PDFLaTeX", buf, os);
+	}
+
 	return write("LaTeX", buf, os);
 }