gtk.DrawingArea + Cairo
John (J5) Palmieri
johnp at redhat.com
Thu Apr 19 18:05:56 EDT 2007
On Wed, 2007-04-18 at 14:49 -0700, Don Hopkins wrote:
> Is there a way for Hippo IconButton subclass to grab the mouse?
> (I want the button to continue tracking until the mouse button goes
> up, no matter where the cursor moves on the screen.)
> Do I need to drop down to GTK to do that?
> If so, which GTK window do I need to grab, to cause grabbed events to
> be delivered to the Hippo canvas?
> I tried the obvious one (self._window.window) but that doesn't seem to
> Should Hippo have its own API for grabbing the mouse?
You get this information already. When a HippoCanvasBox is clicked you
get a button-press-event and a mouse grab. When it is released you get
button-release-event always. You need to call set_clickable on the box
(IconButton should inherit from Box). You have to understand that you
will always get a button-release-event even if the mouse is not over the
button when released. set_clickable will call the activate signal for a
real click (mouse is over the button when released). As far as I can
tell we are still sending activate signals on mouse down. This is a bug
in sugar for working with older canvases and we should start relying on
John (J5) Palmieri <johnp at redhat.com>
More information about the Devel