def restoreGeometry(self, geometry):
"""
Restores the geometry of this subwindow
:param geometry: the saved state as a QByteArray instance
:return:
"""
if geometry.size() < 4:
return False
stream = QDataStream(geometry)
if stream.readUInt32() != 0x1D9D0CB:
return False
if stream.readUInt16() != 1:
return False
stream.readUInt16() # minorVersion is ignored.
x = stream.readInt64()
y = stream.readInt64()
width = stream.readInt64()
height = stream.readInt64()
restoredFrameGeometry = QRect(x, y, width, height)
x = stream.readInt64()
y = stream.readInt64()
width = stream.readInt64()
height = stream.readInt64()
restoredNormalGeometry = QRect(x, y, width, height)
maximized = stream.readUInt32()
fullScreen = stream.readUInt32()
frameHeight = 20
if not restoredFrameGeometry.isValid():
restoredFrameGeometry = QRect(QPoint(0, 0), self.sizeHint())
if not restoredNormalGeometry.isValid():
restoredNormalGeometry = QRect(QPoint(0, frameHeight),
self.sizeHint())
restoredFrameGeometry.moveTop(max(restoredFrameGeometry.top(), 0))
restoredNormalGeometry.moveTop(
max(restoredNormalGeometry.top(), 0 + frameHeight))
if maximized or fullScreen:
self.setGeometry(restoredNormalGeometry)
ws = self.windowState()
if maximized:
ws |= Qt.WindowMaximized
if fullScreen:
ws |= Qt.WindowFullScreen
self.setWindowState(ws)
else:
offset = QPoint()
self.setWindowState(self.windowState()
& ~(Qt.WindowMaximized | Qt.WindowFullScreen))
self.move(restoredFrameGeometry.topLeft() + offset)
self.resize(restoredNormalGeometry.size())
return True
def _crop(self, rect: QRect):
""" Crop View Selection Area """
if rect.isValid():
self.__history.append(rect)
self.__render_image = self.__render_image.copy(rect)
self.__tool.setImage(self.__render_image)
self.adjustAspectRatio()
def array2DSlices(a2D, rect):
"""
Return the 2-uple of slice objects convenient to
index the intersection of the 2 dimensional array a2D
with rect.
@param a2D:
@type a2D: ndarray, ndims >=2
@param rect: (x, y, w, h)
@type rect: 4-uple of int or QRect object
@return:
@rtype: 2-uple of slice objects
"""
# convert rect to a QRect object
if type(rect) not in [QRect]:
try:
rect = QRect(*rect)
except (TypeError, ValueError):
rect = QRect()
# intersect a2D with rect
qrect = QRect(0, 0, a2D.shape[1], a2D.shape[0]) & rect
if qrect.isValid():
return slice(qrect.top(),
qrect.bottom()), slice(qrect.left(), qrect.right())
else:
return slice(0, 0), slice(0, 0)
def _finalCrop(self, rect: QRect):
""" Crop Selection Area """
if self.__image:
image = self.__image
if self.__history:
for r in self.__history:
image = image.crop(r.getCoords())
if rect.isValid():
self.__history.append(rect)
image = image.crop(rect.getCoords())
self.__history = []
self.__image = image
self.__render_image = ImageQt.ImageQt(self.__image)
self.__tool.setImage(self.__render_image)
self.result.emit(image) # type: ignore
