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WmfImagePlugin.pyo
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Python Compiled Bytecode
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2008-10-13
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3KB
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97 lines
# Source Generated with Decompyle++
# File: in.pyo (Python 2.5)
__version__ = '0.2'
import Image
import ImageFile
_handler = None
def register_handler(handler):
global _handler
_handler = handler
def word(c, o = 0):
return ord(c[o]) + (ord(c[o + 1]) << 8)
def short(c, o = 0):
v = ord(c[o]) + (ord(c[o + 1]) << 8)
if v >= 32768:
v = v - 65536
return v
def dword(c, o = 0):
return ord(c[o]) + (ord(c[o + 1]) << 8) + (ord(c[o + 2]) << 16) + (ord(c[o + 3]) << 24)
def long(c, o = 0):
return dword(c, o)
def _accept(prefix):
if not prefix[:6] == '\xd7\xcd\xc6\x9a\x00\x00':
pass
return prefix[:4] == '\x01\x00\x00\x00'
class WmfStubImageFile(ImageFile.StubImageFile):
format = 'WMF'
format_description = 'Windows Metafile'
def _open(self):
s = self.fp.read(80)
if s[:6] == '\xd7\xcd\xc6\x9a\x00\x00':
inch = word(s, 14)
x0 = short(s, 6)
y0 = short(s, 8)
x1 = short(s, 10)
y1 = short(s, 12)
size = ((x1 - x0) * 72 / inch, (y1 - y0) * 72 / inch)
self.info['wmf_bbox'] = (x0, y0, x1, y1)
self.info['dpi'] = 72
if s[22:26] != '\x01\x00\t\x00':
raise SyntaxError('Unsupported WMF file format')
elif long(s) == 1 and s[40:44] == ' EMF':
x0 = long(s, 8)
y0 = long(s, 12)
x1 = long(s, 16)
y1 = long(s, 20)
frame = (long(s, 24), long(s, 28), long(s, 32), long(s, 36))
size = (x1 - x0, y1 - y0)
xdpi = 2540 * (x1 - y0) / (frame[2] - frame[0])
ydpi = 2540 * (y1 - y0) / (frame[3] - frame[1])
self.info['wmf_bbox'] = (x0, y0, x1, y1)
if xdpi == ydpi:
self.info['dpi'] = xdpi
else:
self.info['dpi'] = (xdpi, ydpi)
else:
raise SyntaxError('Unsupported file format')
self.mode = 'RGB'
self.size = size
loader = self._load()
if loader:
loader.open(self)
def _load(self):
return _handler
def _save(im, fp, filename):
if _handler is None or not hasattr('_handler', 'save'):
raise IOError('WMF save handler not installed')
_handler.save(im, fp, filename)
Image.register_open(WmfStubImageFile.format, WmfStubImageFile, _accept)
Image.register_save(WmfStubImageFile.format, _save)
Image.register_extension(WmfStubImageFile.format, '.wmf')
Image.register_extension(WmfStubImageFile.format, '.emf')