Fixing Qt/Qt4 blit shearing problem

mdboom · mdboom · commit 06301b842862 · 2008-03-10T12:46:12.000Z
svn path=/trunk/matplotlib/; revision=4995
diff --git a/lib/matplotlib/backends/backend_qt4agg.py b/lib/matplotlib/backends/backend_qt4agg.py
@@ -109,8 +109,9 @@ def paintEvent( self, e ):
         # we are blitting here
         else:
             bbox = self.replot
-            l, b, w, h = bbox.bounds
-            t = b + h
+            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()
             qImage = QtGui.QImage(stringBuffer, w, h, QtGui.QImage.Format_ARGB32)
diff --git a/lib/matplotlib/backends/backend_qtagg.py b/lib/matplotlib/backends/backend_qtagg.py
@@ -115,8 +115,9 @@ def paintEvent( self, e ):
         # we are blitting here
         else:
             bbox = self.replot
-            l, b, w, h = bbox.bounds
-            t = b + h
+            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()
             qImage = qt.QImage(stringBuffer, w, h, 32, None, 0, qt.QImage.IgnoreEndian)
