diff options
Diffstat (limited to 'grc/gui/DrawingArea.py')
| -rw-r--r-- | grc/gui/DrawingArea.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/grc/gui/DrawingArea.py b/grc/gui/DrawingArea.py index d22a2c6d5f..4412129809 100644 --- a/grc/gui/DrawingArea.py +++ b/grc/gui/DrawingArea.py @@ -47,6 +47,7 @@ class DrawingArea(gtk.DrawingArea): self.connect('motion-notify-event', self._handle_mouse_motion) self.connect('button-press-event', self._handle_mouse_button_press) self.connect('button-release-event', self._handle_mouse_button_release) + self.connect('scroll-event', self._handle_mouse_scroll) self.add_events( gtk.gdk.BUTTON_PRESS_MASK | \ gtk.gdk.POINTER_MOTION_MASK | \ @@ -83,6 +84,13 @@ class DrawingArea(gtk.DrawingArea): """ self._flow_graph.add_new_block(selection_data.data, (x, y)) + def _handle_mouse_scroll(self, widget, event): + if event.state & gtk.gdk.SHIFT_MASK: + if event.direction == gtk.gdk.SCROLL_UP: + event.direction = gtk.gdk.SCROLL_LEFT + else: + event.direction = gtk.gdk.SCROLL_RIGHT + def _handle_mouse_button_press(self, widget, event): """ Forward button click information to the flow graph. |