git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@24965 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			280 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			280 lines
		
	
	
		
			8.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
#----------------------------------------------------------------------
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# Name:        wxPython.tools.img2py
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# Purpose:     Convert an image to Python code.
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#
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# Author:      Robin Dunn
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#
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# RCS-ID:      $Id$
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# Copyright:   (c) 2002 by Total Control Software
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# Licence:     wxWindows license
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#----------------------------------------------------------------------
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# 12/21/2003 - Jeff Grimmett (grimmtooth@softhome.net)
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#
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# o V2.5 compatability update 
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#
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"""
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img2py.py  --  Convert an image to PNG format and embed it in a Python
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               module with appropriate code so it can be loaded into
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               a program at runtime.  The benefit is that since it is
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               Python source code it can be delivered as a .pyc or
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               'compiled' into the program using freeze, py2exe, etc.
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Usage:
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    img2py.py [options] image_file python_file
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Options:
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    -m <#rrggbb>   If the original image has a mask or transparency defined
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                   it will be used by default.  You can use this option to
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                   override the default or provide a new mask by specifying
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                   a colour in the image to mark as transparent.
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    -n <name>      Normally generic names (getBitmap, etc.) are used for the
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                   image access functions.  If you use this option you can
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                   specify a name that should be used to customize the access
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                   fucntions, (getNameBitmap, etc.)
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    -c             Maintain a catalog of names that can be used to reference
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                   images.  Catalog can be accessed via catalog and index attributes
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                   of the module.  If the -n <name> option is specified then <name>
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                   is used for the catalog key and index value, otherwise
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                   the filename without any path or extension is used as the key.
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    -a             This flag specifies that the python_file should be appended
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                   to instead of overwritten.  This in combination with -n will
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                   allow you to put multiple images in one Python source file.
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    -u             Don't use compression.  Leaves the data uncompressed.
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    -i             Also output a function to return the image as a wxIcon.
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"""
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#
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# Changes:
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#    - Cliff Wells <LogiplexSoftware@earthlink.net>
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#      20021206: Added catalog (-c) option.
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#
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# 12/21/2003 - Jeff Grimmett (grimmtooth@softhome.net)
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#
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# o V2.5 compatability update 
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#
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import  cPickle
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import  cStringIO
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import  getopt
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import  glob
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import  os
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import  sys
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import  tempfile
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import  zlib
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import  wx
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import  img2img
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def crunch_data(data, compressed):
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    # compress it?
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    if compressed:
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        data = zlib.compress(data, 9)
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    # convert to a printable format, so it can be in a Python source file
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    data = repr(data)
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    # This next bit is borrowed from PIL.  It is used to wrap the text intelligently.
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    fp = cStringIO.StringIO()
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    data = data + " "  # buffer for the +1 test
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    c = i = 0
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    word = ""
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    octdigits = "01234567"
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    hexdigits = "0123456789abcdef"
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    while i < len(data):
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        if data[i] != "\\":
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            word = data[i]
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            i = i + 1
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        else:
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            if data[i+1] in octdigits:
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                for n in range(2, 5):
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                    if data[i+n] not in octdigits:
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                        break
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                word = data[i:i+n]
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                i = i + n
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            elif data[i+1] == 'x':
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                for n in range(2, 5):
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                    if data[i+n] not in hexdigits:
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                        break
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                word = data[i:i+n]
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                i = i + n
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            else:
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                word = data[i:i+2]
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                i = i + 2
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        l = len(word)
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        if c + l >= 78-1:
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            fp.write("\\\n")
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            c = 0
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        fp.write(word)
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        c = c + l
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    # return the formatted compressed data
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    return fp.getvalue()
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def main(args):
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    if not args or ("-h" in args):
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        print __doc__
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        return
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    # some bitmap related things need to have a wxApp initialized...
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    if wx.GetApp() is None:
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        app = wx.PySimpleApp()
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    append = 0
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    compressed = 1
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    maskClr = None
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    imgName = ""
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    icon = 0
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    catalog = 0
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    try:
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        opts, fileArgs = getopt.getopt(args, "auicn:m:")
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    except getopt.GetoptError:
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        print __doc__
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        return
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    for opt, val in opts:
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        if opt == "-a":
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            append = 1
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        elif opt == "-u":
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            compressed = 0
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        elif opt == "-n":
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            imgName = val
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        elif opt == "-m":
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            maskClr = val
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        elif opt == "-i":
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            icon = 1
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        elif opt == "-c":
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            catalog = 1
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    if len(fileArgs) != 2:
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        print __doc__
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        return
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    image_file, python_file = fileArgs
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    # convert the image file to a temporary file
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    tfname = tempfile.mktemp()
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    ok, msg = img2img.convert(image_file, maskClr, None, tfname, wx.BITMAP_TYPE_PNG, ".png")
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    if not ok:
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        print msg
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        return
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    data = open(tfname, "rb").read()
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    data = crunch_data(data, compressed)
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    os.unlink(tfname)
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    if append:
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        out = open(python_file, "a")
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    else:
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        out = open(python_file, "w")
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    if catalog:
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        pyPath, pyFile = os.path.split(python_file)
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        imgPath, imgFile = os.path.split(image_file)
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        if not imgName:
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            imgName = os.path.splitext(imgFile)[0]
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            print "\nWarning: -n not specified. Using filename (%s) for catalog entry." % imgName
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        old_index = []
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        if append:
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            # check to see if catalog exists already (file may have been created
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            # with an earlier version of img2py or without -c option)
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            oldSysPath = sys.path[:]
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            sys.path = [pyPath] # make sure we don't import something else by accident
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            mod = __import__(os.path.splitext(pyFile)[0])
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            if 'index' not in dir(mod):
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                print "\nWarning: %s was originally created without catalog." % python_file
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                print "         Any images already in file will not be cataloged.\n"
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                out.write("\n# ***************** Catalog starts here *******************")
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                out.write("\n\ncatalog = {}\n")
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                out.write("index = []\n\n")
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                out.write("class ImageClass: pass\n\n")
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            else: # save a copy of the old index so we can warn about duplicate names
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                old_index[:] = mod.index[:]
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            del mod
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            sys.path = oldSysPath[:]
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    out.write("#" + "-" * 70 + "\n")
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    if not append:
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        out.write("# This file was generated by %s\n#\n" % sys.argv[0])
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        out.write("from wx import ImageFromStream, BitmapFromImage\n")
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        if icon:
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            out.write("from wx import EmptyIcon\n")
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        if compressed:
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            out.write("import cStringIO, zlib\n\n\n")
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        else:
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            out.write("import cStringIO\n\n\n")
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        if catalog:
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            out.write("catalog = {}\n")
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            out.write("index = []\n\n")
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            out.write("class ImageClass: pass\n\n")
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    if compressed:
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        out.write("def get%sData():\n"
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                  "    return zlib.decompress(\n%s)\n\n"
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                  % (imgName, data))
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    else:
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        out.write("def get%sData():\n"
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                  "    return \\\n%s\n\n"
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                  % (imgName, data))
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    out.write("def get%sBitmap():\n"
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              "    return BitmapFromImage(get%sImage())\n\n"
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              "def get%sImage():\n"
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              "    stream = cStringIO.StringIO(get%sData())\n"
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              "    return ImageFromStream(stream)\n\n"
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              % tuple([imgName] * 4))
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    if icon:
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        out.write("def get%sIcon():\n"
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                  "    icon = EmptyIcon()\n"
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                  "    icon.CopyFromBitmap(get%sBitmap())\n"
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                  "    return icon\n\n"
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                  % tuple([imgName] * 2))
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    if catalog:
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        if imgName in old_index:
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            print "Warning: %s already in catalog." % imgName
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            print "         Only the last entry will be accessible.\n"
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        old_index.append(imgName)
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        out.write("index.append('%s')\n" % imgName)
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        out.write("catalog['%s'] = ImageClass()\n" % imgName)
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        out.write("catalog['%s'].getData = get%sData\n" % tuple([imgName] * 2))
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        out.write("catalog['%s'].getImage = get%sImage\n" % tuple([imgName] * 2))
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        out.write("catalog['%s'].getBitmap = get%sBitmap\n" % tuple([imgName] * 2))
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        if icon:
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            out.write("catalog['%s'].getIcon = get%sIcon\n" % tuple([imgName] * 2))
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        out.write("\n\n")
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    if imgName:
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        n_msg = ' using "%s"' % imgName
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    else:
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        n_msg = ""
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    if maskClr:
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        m_msg = " with mask %s" % maskClr
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    else:
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        m_msg = ""
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    print "Embedded %s%s into %s%s" % (image_file, n_msg, python_file, m_msg)
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if __name__ == "__main__":
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    main(sys.argv[1:])
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