Revision: 7155
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7155&view=rev
Author: dsdale
Date: 2009-05-28 16:11:16 +0000 (Thu, 28 May 2009)
Log Message:
-----------
handle scroll wheel events in Qt4 backend
Modified Paths:
--------------
trunk/matplotlib/CHANGELOG
trunk/matplotlib/lib/matplotlib/backends/backend_qt4.py
Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG 2009-05-28 15:59:12 UTC (rev 7154)
+++ trunk/matplotlib/CHANGELOG 2009-05-28 16:11:16 UTC (rev 7155)
@@ -1,3 +1,6 @@
+2009-05-28 Applied fbianco's patch to handle scroll wheel events in
+ the qt4 backend - DSD
+
2009-05-26 Add support for "axis spines" to have arbitrary location. -ADS
2009-05-20 Add an empty matplotlibrc to the tests/ directory so that running
Modified: trunk/matplotlib/lib/matplotlib/backends/backend_qt4.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_qt4.py 2009-05-28
15:59:12 UTC (rev 7154)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_qt4.py 2009-05-28
16:11:16 UTC (rev 7155)
@@ -136,6 +136,16 @@
FigureCanvasBase.button_release_event( self, x, y, button )
if DEBUG: print 'button released'
+ def wheelEvent( self, event ):
+ x = event.x()
+ # flipy so y=0 is bottom of canvas
+ y = self.figure.bbox.height - event.y()
+ # from QWheelEvent::delta doc
+ steps = event.delta()/120
+ if (event.orientation() == Qt.Qt.Vertical):
+ FigureCanvasBase.scroll_event( self, x, y, steps)
+ if DEBUG: print 'scroll event : delta = %i, steps = %i ' %
(event.delta(),steps)
+
def keyPressEvent( self, event ):
key = self._get_key( event )
FigureCanvasBase.key_press_event( self, key )
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