def make_image(path, src, fail_ok=False):
"""relative to path (if needed), make a QGraphicsPixmapItem
for the image named in src, returning None if not available,
or an 'No Image' image if fail_ok == False"""
if '//' not in src or src.startswith('file://'):
testpath = src
if '//' in testpath:
testpath = testpath.split('//', 1)[-1]
#
# file on local file system
testpath = g.os_path_finalize_join(path, testpath)
if g.os_path_exists(testpath):
return QtWidgets.QGraphicsPixmapItem(QtGui.QPixmap(testpath))
#
# explicit file://, but no such file exists
if src.startswith('file://'):
return None if fail_ok else GetImage._no_image()
#
# no explict file://, so try other protocols
testpath = src if '//' in src else 'http://%s' % (src)
data = GetImage.get_url(testpath)
if data:
img = QtGui.QPixmap()
if img.loadFromData(data):
return QtWidgets.QGraphicsPixmapItem(img)
return None if fail_ok else GetImage._no_image()
def _no_image():
"""return QGraphicsPixmapItem with "No Image" image loaded"""
testpath = g.os_path_abspath(
g.os_path_join(g.app.loadDir,
'../plugins/GraphCanvas/no_image.png'))
return QtWidgets.QGraphicsPixmapItem(QtGui.QPixmap(testpath))
