def paintEvent(self, e):
"""
Copy the image from the Agg canvas to the qt.drawable.
In Qt, all drawing should be done inside of here when a widget is
shown onscreen.
"""
#FigureCanvasQT.paintEvent(self, e)
if DEBUG:
print('FigureCanvasQtAgg.paintEvent: ', self,
self.get_width_height())
if self.blitbox is None:
# matplotlib is in rgba byte order. QImage wants to put the bytes
# into argb format and is in a 4 byte unsigned int. Little endian
# system is LSB first and expects the bytes in reverse order
# (bgra).
if QtCore.QSysInfo.ByteOrder == QtCore.QSysInfo.LittleEndian:
stringBuffer = self.renderer._renderer.tostring_bgra()
else:
stringBuffer = self.renderer._renderer.tostring_argb()
refcnt = sys.getrefcount(stringBuffer)
qImage = QtGui.QImage(stringBuffer, self.renderer.width,
self.renderer.height,
QtGui.QImage.Format_ARGB32)
p = QtGui.QPainter(self)
p.drawPixmap(QtCore.QPoint(0, 0), QtGui.QPixmap.fromImage(qImage))
# draw the zoom rectangle to the QPainter
if self.drawRect:
p.setPen(QtGui.QPen(QtCore.Qt.black, 1, QtCore.Qt.DotLine))
p.drawRect(self.rect[0], self.rect[1], self.rect[2],
self.rect[3])
p.end()
# This works around a bug in PySide 1.1.2 on Python 3.x,
# where the reference count of stringBuffer is incremented
# but never decremented by QImage.
# TODO: revert PR #1323 once the issue is fixed in PySide.
del qImage
if refcnt != sys.getrefcount(stringBuffer):
_decref(stringBuffer)
else:
bbox = self.blitbox
l, b, r, t = bbox.extents
w = int(r) - int(l)
h = int(t) - int(b)
t = int(b) + h
reg = self.copy_from_bbox(bbox)
stringBuffer = reg.to_string_argb()
qImage = QtGui.QImage(stringBuffer, w, h,
QtGui.QImage.Format_ARGB32)
pixmap = QtGui.QPixmap.fromImage(qImage)
p = QtGui.QPainter(self)
p.drawPixmap(QtCore.QPoint(l, self.renderer.height - t), pixmap)
p.end()
self.blitbox = None
self.drawRect = False
def paintEvent(self, e):
"""
Draw to the Agg backend and then copy the image to the qt.drawable.
In Qt, all drawing should be done inside of here when a widget is
shown onscreen.
"""
#FigureCanvasQT.paintEvent( self, e )
if DEBUG: print 'FigureCanvasQtAgg.paintEvent: ', self, \
self.get_width_height()
# only replot data when needed
if type(self.replot) is bool: # might be a bbox for blitting
if self.replot:
FigureCanvasAgg.draw(self)
# matplotlib is in rgba byte order. QImage wants to put the bytes
# into argb format and is in a 4 byte unsigned int. Little endian
# system is LSB first and expects the bytes in reverse order
# (bgra).
if QtCore.QSysInfo.ByteOrder == QtCore.QSysInfo.LittleEndian:
stringBuffer = self.renderer._renderer.tostring_bgra()
else:
stringBuffer = self.renderer._renderer.tostring_argb()
qImage = QtGui.QImage(stringBuffer, self.renderer.width,
self.renderer.height,
QtGui.QImage.Format_ARGB32)
p = QtGui.QPainter(self)
p.drawPixmap(QtCore.QPoint(0, 0), QtGui.QPixmap.fromImage(qImage))
# draw the zoom rectangle to the QPainter
if self.drawRect:
p.setPen(QtGui.QPen(QtCore.Qt.black, 1, QtCore.Qt.DotLine))
p.drawRect(self.rect[0], self.rect[1], self.rect[2],
self.rect[3])
p.end()
# we are blitting here
else:
bbox = self.replot
l, t = int(bbox.ll().x().get()), int(bbox.ur().y().get())
r, b = int(bbox.ur().x().get()), int(bbox.ll().y().get())
w = r - l
h = t - b
reg = self.copy_from_bbox(bbox)
stringBuffer = reg.to_string_argb()
qImage = QtGui.QImage(stringBuffer, w, h,
QtGui.QImage.Format_ARGB32)
pixmap = QtGui.QPixmap.fromImage(qImage)
p = QtGui.QPainter(self)
p.drawPixmap(QtCore.QPoint(l, self.renderer.height - t), pixmap)
p.end()
self.replot = False
self.drawRect = False
def paintEvent( self, e ):
"""
Draw to the Agg backend and then copy the image to the qt.drawable.
In Qt, all drawing should be done inside of here when a widget is
shown onscreen.
"""
#FigureCanvasQT.paintEvent( self, e )
if DEBUG: print 'FigureCanvasQtAgg.paintEvent: ', self, \
self.get_width_height()
if self.replot:
FigureCanvasAgg.draw(self)
self.replot = False
if self.blitbox is None:
stringBuffer = self.renderer._renderer.tostring_bgra()
qImage = QtGui.QImage(stringBuffer, self.renderer.width,
self.renderer.height,
QtGui.QImage.Format_ARGB32)
p = QtGui.QPainter(self)
p.drawPixmap(QtCore.QPoint(0, 0), QtGui.QPixmap.fromImage(qImage))
# draw the zoom rectangle to the QPainter
if self.drawRect:
p.setPen( QtGui.QPen( QtCore.Qt.black, 1, QtCore.Qt.DotLine ) )
p.drawRect( self.rectangle[0], self.rectangle[1], self.rectangle[2], self.rectangle[3] )
p.end()
else:
bbox = self.blitbox
l, b, r, t = bbox.extents
w = int(r) - int(l)
h = int(t) - int(b)
t = int(b) + h
reg = self.copy_from_bbox(bbox)
stringBuffer = reg.tostring_bgra()
qImage = QtGui.QImage(stringBuffer, w, h, QtGui.QImage.Format_ARGB32)
pixmap = QtGui.QPixmap.fromImage(qImage)
p = QtGui.QPainter( self )
p.drawPixmap(QtCore.QPoint(l, self.renderer.height-t), pixmap)
p.end()
self.blitbox = None
self.drawRect = False