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Do not attempt to subclass QImage if Qt is not installed

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This commit is contained in:
Andrew Murray 2015-05-07 20:26:26 +10:00
parent b318595666
commit fa1c4bffaf
1 changed files with 21 additions and 20 deletions
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41
PIL/ImageQt.py
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@ -22,18 +22,18 @@ import sys
qt_is_installed = True qt_is_installed = True
try: try:
from PyQt5.QtGui import QGuiApplication, QImage, qRgb, qRgba, QPixmap from PyQt5.QtGui import QGuiApplication, QImage, qRgb, qRgba, QPixmap
from PyQt5.QtCore import QBuffer, QIODevice from PyQt5.QtCore import QBuffer, QIODevice
except ImportError: except ImportError:
try: try:
from PyQt4.QtGui import QGuiApplication, QImage, qRgb, qRgba, QPixmap from PyQt4.QtGui import QGuiApplication, QImage, qRgb, qRgba, QPixmap
from PyQt4.QtCore import QBuffer, QIODevice from PyQt4.QtCore import QBuffer, QIODevice
except ImportError: except ImportError:
try: try:
from PySide.QtGui import QGuiApplication, QImage, qRgb, qRgba, QPixmap from PySide.QtGui import QGuiApplication, QImage, qRgb, qRgba, QPixmap
from PySide.QtCore import QBuffer, QIODevice from PySide.QtCore import QBuffer, QIODevice
except ImportError: except ImportError:
qt_is_installed = False qt_is_installed = False
from io import BytesIO from io import BytesIO
@ -147,13 +147,14 @@ def toqpixmap(im):
# @param im A PIL Image object, or a file name (given either as Python # @param im A PIL Image object, or a file name (given either as Python
# string or a PyQt string object). # string or a PyQt string object).
class ImageQt(QImage): if qt_is_installed:
class ImageQt(QImage):
def __init__(self, im): def __init__(self, im):
im_data = _toqclass_helper(im) im_data = _toqclass_helper(im)
QImage.__init__(self, QImage.__init__(self,
im_data['data'], im_data['im'].size[0], im_data['im'].size[1], im_data['data'], im_data['im'].size[0], im_data['im'].size[1],
im_data['format'] im_data['format']
) )
if im_data['colortable']: if im_data['colortable']:
self.setColorTable(im_data['colortable']) self.setColorTable(im_data['colortable'])