added a resize_event

jdh2358 · jdh2358 · commit b0905acdbe11 · 2005-09-14T15:59:44.000Z
svn path=/trunk/matplotlib/; revision=1752
diff --git a/CHANGELOG b/CHANGELOG
@@ -1,9 +1,13 @@
 New entries should be added at the top
 
+2005-09-14 Added a new 'resize_event' which triggers a callback with a
+           backend_bases.ResizeEvent object - JDH
+
 2005-09-14 font_manager.py: removed chkfontpath from x11FontDirectory() - SC
 
 2005-09-14 Factored out auto date locator/formatter factory code into
-           matplotlib.date.date_ticker_factory
+           matplotlib.date.date_ticker_factory; applies John Bryne's
+           quiver patch.
 
 2005-09-13 Added Mark's axes positions history patch #1286915
 
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -827,12 +827,12 @@ def quiver(self, U, V, *args, **kwargs ):
             # ( U, V )
             U = asarray(U)
             V = asarray(V)
-            X,Y = meshgrid( arange(U.shape[0]), arange(U.shape[1]) )
+            X,Y = meshgrid( arange(U.shape[1]), arange(U.shape[0]) )
         elif len(args)==1:
             # ( U, V, S )
             U = asarray(U)
             V = asarray(V)
-            X,Y = meshgrid( arange(U.shape[0]), arange(U.shape[1]) )
+            X,Y = meshgrid( arange(U.shape[1]), arange(U.shape[0]) )
             S = float(args[0])
             do_scale = ( S != 0.0 )
         elif len(args)==2:
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -575,6 +575,20 @@ def __init__(self, name, canvas, renderer):
         Event.__init__(self, name, canvas)
         self.renderer = renderer
 
+class ResizeEvent(Event):
+    """
+    An event triggered by a canvas resize
+
+    Attributes are
+      name
+      canvas
+      width   # width of the canvas in pixels
+      height  # height of the canvas in pixels
+    """
+    def __init__(self, name, canvas):
+        Event.__init__(self, name, canvas)
+        self.width, self.height = canvas.get_width_height()
+
 class LocationEvent(Event):
     """
     A event that has a screen location
@@ -731,6 +745,11 @@ def draw_event(self, renderer):
         for func in self.callbacks.get('draw_event', {}).values():
             func(event)
 
+    def resize_event(self):
+        event = ResizeEvent('resize_event', self)
+        for func in self.callbacks.get('resize_event', {}).values():
+            func(event)
+
     def key_press_event(self, key, guiEvent=None):
         self._key = key
         event = KeyEvent('key_press_event', self, key, self._lastx, self._lasty, guiEvent=guiEvent)
@@ -833,6 +852,7 @@ def func(event)
 
         where event is a MplEvent.  The following events are recognized
 
+         'resize_event'
          'draw_event'
          'key_press_event'
          'key_release_event'
@@ -850,6 +870,7 @@ def func(event)
         mpl_disconnect """
 
         assert s in  (
+        'resize_event',
         'draw_event',
         'key_press_event',
         'key_release_event',
diff --git a/lib/matplotlib/backends/backend_gtk.py b/lib/matplotlib/backends/backend_gtk.py
@@ -215,6 +215,7 @@ def _get_key(self, event):
 
 
     def configure_event(self, widget, event):
+
         if _debug: print 'FigureCanvasGTK.%s' % fn_name()
         if widget.window == None:
             return
@@ -227,6 +228,8 @@ def configure_event(self, widget, event):
         self.figure.set_figsize_inches (w/dpi, h/dpi)
 
         self._need_redraw = True
+
+        self.resize_event()
         return False  # finish event propagation?
 
 
diff --git a/lib/matplotlib/backends/backend_gtkagg.py b/lib/matplotlib/backends/backend_gtkagg.py
@@ -62,7 +62,7 @@ def configure_event(self, widget, event=None):
         hinch = h/dpival
         self.figure.set_figsize_inches(winch, hinch)
         self._need_redraw = True
-        
+        self.resize_event()
         if DEBUG: print 'FigureCanvasGTKAgg.configure_event end'        
         return True
     
