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()
p = qt.QPainter(self)
# only replot data when needed
if type(self.replot) is bool: # might be a bbox for blitting
if self.replot:
FigureCanvasAgg.draw(self)
#stringBuffer = str( self.buffer_rgba(0,0) )
# 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 (qt.QImage.systemByteOrder() == qt.QImage.LittleEndian):
stringBuffer = self.renderer._renderer.tostring_bgra()
else:
stringBuffer = self.renderer._renderer.tostring_argb()
qImage = qt.QImage(stringBuffer, self.renderer.width,
self.renderer.height, 32, None, 0,
qt.QImage.IgnoreEndian)
self.pixmap.convertFromImage(qImage, qt.QPixmap.Color)
p.drawPixmap(qt.QPoint(0, 0), self.pixmap)
# draw the zoom rectangle to the QPainter
if (self.drawRect):
p.setPen(qt.QPen(qt.Qt.black, 1, qt.Qt.DotLine))
p.drawRect(self.rect[0], self.rect[1], self.rect[2],
self.rect[3])
# 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 = qt.QImage(stringBuffer, w, h, 32, None, 0,
qt.QImage.IgnoreEndian)
self.pixmap.convertFromImage(qImage, qt.QPixmap.Color)
p.drawPixmap(qt.QPoint(l, self.renderer.height - t), self.pixmap)
p.end()
self.replot = False
self.drawRect = False
def __init__( self, figure ):
if DEBUG: print 'FigureCanvasQtAgg: ', figure
FigureCanvasQT.__init__( self, figure )
FigureCanvasAgg.__init__( self, figure )
self.drawRect = False
self.rect = []
self.replot = True
self.pixmap = qt.QPixmap()
def __init__( self, figure ):
if DEBUG: print 'FigureCanvasQtAgg: ', figure
FigureCanvasQT.__init__( self, figure )
FigureCanvasAgg.__init__( self, figure )
self.drawRect = False
self.rect = []
self.replot = True
self.pixmap = qt.QPixmap()
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()
p = qt.QPainter( self )
# only replot data when needed
if type(self.replot) is bool: # might be a bbox for blitting
if self.replot:
FigureCanvasAgg.draw( self )
#stringBuffer = str( self.buffer_rgba(0,0) )
# 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 ( qt.QImage.systemByteOrder() == qt.QImage.LittleEndian ):
stringBuffer = self.renderer._renderer.tostring_bgra()
else:
stringBuffer = self.renderer._renderer.tostring_argb()
qImage = qt.QImage( stringBuffer, self.renderer.width,
self.renderer.height, 32, None, 0,
qt.QImage.IgnoreEndian )
self.pixmap.convertFromImage( qImage, qt.QPixmap.Color )
p.drawPixmap( qt.QPoint( 0, 0 ), self.pixmap )
# draw the zoom rectangle to the QPainter
if ( self.drawRect ):
p.setPen( qt.QPen( qt.Qt.black, 1, qt.Qt.DotLine ) )
p.drawRect( self.rect[0], self.rect[1], self.rect[2], self.rect[3] )
# 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 = qt.QImage(stringBuffer, w, h, 32, None, 0, qt.QImage.IgnoreEndian)
self.pixmap.convertFromImage(qImage, qt.QPixmap.Color)
p.drawPixmap(qt.QPoint(l, self.renderer.height-t), self.pixmap)
p.end()
self.replot = False
self.drawRect = False
def resizeEvent( self, e ):
FigureCanvasQT.resizeEvent( self, e )
w = e.size().width()
h = e.size().height()
if DEBUG: print "FigureCanvasQtAgg.resizeEvent(", w, ",", h, ")"
dpival = self.figure.dpi.get()
winch = w/dpival
hinch = h/dpival
self.figure.set_figsize_inches( winch, hinch )
self.draw()
def resizeEvent( self, e ):
FigureCanvasQT.resizeEvent( self, e )
w = e.size().width()
h = e.size().height()
if DEBUG: print "FigureCanvasQtAgg.resizeEvent(", w, ",", h, ")"
dpival = self.figure.dpi.get()
winch = w/dpival
hinch = h/dpival
self.figure.set_size_inches( winch, hinch )
self.draw()
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()
p = qt.QPainter( self )
if type(self.replot) is bool: # might be a bbox for blitting
if self.replot:
FigureCanvasAgg.draw( self )
if ( qt.QImage.systemByteOrder() == qt.QImage.LittleEndian ):
stringBuffer = self.renderer._renderer.tostring_bgra()
else:
stringBuffer = self.renderer._renderer.tostring_argb()
qImage = qt.QImage( stringBuffer, self.renderer.width,
self.renderer.height, 32, None, 0,
qt.QImage.IgnoreEndian )
self.pixmap.convertFromImage( qImage, qt.QPixmap.Color )
p.drawPixmap( qt.QPoint( 0, 0 ), self.pixmap )
if ( self.drawRect ):
p.setPen( qt.QPen( qt.Qt.black, 1, qt.Qt.DotLine ) )
p.drawRect( self.rect[0], self.rect[1], self.rect[2], self.rect[3] )
else:
bbox = self.replot
l, b, r, t = bbox.extents
w = int(r) - int(l)
h = int(t) - int(b)
reg = self.copy_from_bbox(bbox)
stringBuffer = reg.to_string_argb()
qImage = qt.QImage(stringBuffer, w, h, 32, None, 0, qt.QImage.IgnoreEndian)
self.pixmap.convertFromImage(qImage, qt.QPixmap.Color)
p.drawPixmap(qt.QPoint(l, self.renderer.height-t), self.pixmap)
p.end()
self.replot = False
self.drawRect = False
def resizeEvent( self, e ):
FigureCanvasQT.resizeEvent( self, e )
def resizeEvent( self, e ):
FigureCanvasQT.resizeEvent( self, e )
