-#!/usr/bin/env python
+# -*- coding: utf-8 -*-
# file convertDefault.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
-# \author Herbert Voß
+# \author Herbert Voß
# \author Bo Peng
# Full author contact details are available in file CREDITS.
# The user can also redefine this default converter, placing their
# replacement in ~/.lyx/scripts
-# converts an image from $1 to $2 format
-import os, sys
-if os.system(r'convert -depth 8 "%s" "%s"' % (sys.argv[1], sys.argv[2])) != 0:
- print >> sys.stderr, sys.argv[0], 'ERROR'
- print >> sys.stderr, 'Execution of "convert" failed.'
- sys.exit(1)
+# converts an image $2 (format $1) to $4 (format $3)
+import os, re, sys
+# We may need some extra options only supported by recent convert versions
+re_version = re.compile(r'^Version:.*ImageMagick\s*(\d*)\.(\d*)\.(\d*).*$')
+fout = os.popen('convert -version 2>&1')
+output = fout.readline()
+fout.close()
+version = re_version.match(output)
+
+# Imagemagick by default
+gm = False
+
+if version != None:
+ major = int(version.group(1))
+ minor = int(version.group(2))
+ patch = int(version.group(3))
+ version = hex(major * 65536 + minor * 256 + patch)
+else:
+ # Try GraphicsMagick
+ re_version = re.compile(r'^GraphicsMagick.*http:..www.GraphicsMagick.org.*$')
+ version = re_version.match(output)
+ if version != None:
+ gm = True
+
+opts = "-depth 8"
+
+# If supported, add the -define option for pdf source formats
+if sys.argv[1] == 'pdf' and (version >= 0x060206 or gm):
+ opts = '-define pdf:use-cropbox=true ' + opts
+
+# If supported, add the -flatten option for ppm target formats (see bug 4749)
+if sys.argv[3] == 'ppm' and (version >= 0x060305 or gm):
+ opts = opts + ' -flatten'
+
+if os.system(r'convert %s "%s" "%s"' % (opts, sys.argv[2], sys.argv[3] + ':' + sys.argv[4])) != 0:
+ print >> sys.stderr, sys.argv[0], 'ERROR'
+ print >> sys.stderr, 'Execution of "convert" failed.'
+ sys.exit(1)