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== Text and Graphics for Sugar Activities ==
== Text and Graphics for Sugar Activities ==
* [[Pango]]
* [[Pango]]
== Mouse ==
=== How do I change the cursor in my activity to the wait cursor? ===
In your activity subclass:
<pre>
self.window.set_cursor( gtk.gdk.Cursor(gtk.gdk.WATCH) )
</pre>
and to switch it back to the default:
<pre>
self.window.set_cursor( None );
</pre>
=== How do I track the position of the mouse? ===
There are many different reasons you might want to track the position of the mouse in your activity, ranging from the entertaining ([[http://en.wikipedia.org/wiki/Xeyes]]) to the functional (hiding certain windows when the mouse hasn't moved for a couple of seconds and making those ui elements re-appear when the mouse has moved again). Here is one way you can implement this functionality:
<pre>
...
self.hideWidgetsTime = time.time()
self.mx = -1
self.my = -1
self.HIDE_WIDGET_TIMEOUT_ID = gobject.timeout_add( 500, self.mouseMightHaveMovedCb )
def _mouseMightHaveMovedCb( self ):
x, y = self.get_pointer()
passedTime = 0
if (x != self.mx or y != self.my):
self.hideWidgetsTime = time.time()
if (self.hiddenWidgets):
self.showWidgets()
self.hiddenWidgets = False
else:
passedTime = time.time() - self.hideWidgetsTime
if (passedTime >= 3):
if (not self.hiddenWidgets):
self.hideWidgets()
self.hiddenWidgets = True
self.mx = x
self.my = y
return True
</pre>
== Miscellaneous==
== Miscellaneous==