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88c274eee7
Imagemagick detects the inut file format based on contents. Therefore it does not make sense that we prefix the to be converted file name with the extension (assuming that the file extension matches the imagemagick format name). This breaks formats where the extension used by LyX does not match the imagemagick format name.
57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# -*- coding: utf-8 -*-
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# file convertDefault.py
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# This file is part of LyX, the document processor.
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# Licence details can be found in the file COPYING.
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# \author Herbert Voß
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# \author Bo Peng
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# Full author contact details are available in file CREDITS.
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# The default converter if no other has been defined by the user from the
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# Conversion->Converter tab of the Preferences dialog.
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# The user can also redefine this default converter, placing their
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# replacement in ~/.lyx/scripts
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# converts an image $2 (format $1) to $4 (format $3)
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import os, re, sys
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# We may need some extra options only supported by recent convert versions
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re_version = re.compile(r'^Version:.*ImageMagick\s*(\d*)\.(\d*)\.(\d*).*$')
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fout = os.popen('convert -version 2>&1')
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output = fout.readline()
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fout.close()
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version = re_version.match(output)
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# Imagemagick by default
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gm = False
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if version != None:
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major = int(version.group(1))
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minor = int(version.group(2))
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patch = int(version.group(3))
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version = hex(major * 65536 + minor * 256 + patch)
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else:
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# Try GraphicsMagick
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re_version = re.compile(r'^GraphicsMagick.*http:..www.GraphicsMagick.org.*$')
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version = re_version.match(output)
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if version != None:
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gm = True
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opts = "-depth 8"
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# If supported, add the -define option for pdf source formats
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if sys.argv[1] == 'pdf' and (version >= 0x060206 or gm):
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opts = '-define pdf:use-cropbox=true ' + opts
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# If supported, add the -flatten option for ppm target formats (see bug 4749)
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if sys.argv[3] == 'ppm' and (version >= 0x060305 or gm):
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opts = opts + ' -flatten'
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if os.system(r'convert %s "%s" "%s"' % (opts, sys.argv[2], sys.argv[3] + ':' + sys.argv[4])) != 0:
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print >> sys.stderr, sys.argv[0], 'ERROR'
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print >> sys.stderr, 'Execution of "convert" failed.'
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sys.exit(1)
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