[PyQt] QImage with a trapezoid draw result

[Sergi Blanch i Torné]

Hi!

I'm try to show an image on a widget but the image appears distorted. This 
widget is receiving images by events with a method where the dimensions has 
also to be sent:

	def eventReceived(self, EventSource, EventType, EventValue):
		self._imagedata = array.array('B',EventValue.value).tostring()
		self._imagedim = [EventValue.dim_x, EventValue.dim_y]
		self.ImageResize()
		self.emit(QtCore.SIGNAL('newImage()'))

As this function says (or this is what I try), the image is composed by 
unsigned short values (it's grayscale). Then I have a method where the QImage 
object is created and resized:

	def ImageResize(self):
		self._image = QtGui.QImage(self._imagedata,
					self._imagedim[0],self._imagedim[1],
					QtGui.QImage.Format_Indexed8)
		width,height = [self.width(),self.height()]
		self._image = self._image.scaled(width,height,
					Qt.Qt.IgnoreAspectRatio,
					Qt.Qt.FastTransformation)

The image show on the screen looks trapezoidal like if the width hadn't been 
well calculated. I try closing a plus minus value to fix this inclination but 
without success.

I explain the same but with image samples where:
http://cryptosynchrotron.blogspot.com/2008/04/pyqt-qimage-problem.html
And there you can found a link to the widget current code.

Sano kaj liber!

/Sergi.