Revision: 8253
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8253&view=rev
Author: ryanmay
Date: 2010-04-20 19:42:29 +0000 (Tue, 20 Apr 2010)
Log Message:
-----------
Add TimerWx and new_timer() method.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/backends/backend_wx.py
Modified: trunk/matplotlib/lib/matplotlib/backends/backend_wx.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_wx.py 2010-04-20
19:42:05 UTC (rev 8252)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_wx.py 2010-04-20
19:42:29 UTC (rev 8253)
@@ -190,7 +190,7 @@
from matplotlib import verbose
from matplotlib.backend_bases import RendererBase, GraphicsContextBase,\
FigureCanvasBase, FigureManagerBase, NavigationToolbar2, \
- cursors
+ cursors, TimerBase
from matplotlib._pylab_helpers import Gcf
from matplotlib.artist import Artist
from matplotlib.cbook import exception_to_str, is_string_like,
is_writable_file_like
@@ -226,6 +226,52 @@
msg = '\n'.join(map(str, msg))
return msg
+
+class TimerWx(TimerBase):
+ '''
+ Subclass of :class:`backend_bases.TimerBase` that uses WxTimer events.
+
+ Attributes:
+ * interval: The time between timer events in milliseconds. Default
+ is 1000 ms.
+ * single_shot: Boolean flag indicating whether this timer should
+ operate as single shot (run once and then stop). Defaults to False.
+ * callbacks: Stores list of (func, args) tuples that will be called
+ upon timer events. This list can be manipulated directly, or the
+ functions add_callback and remove_callback can be used.
+ '''
+ def __init__(self, parent):
+ import wx
+ TimerBase.__init__(self)
+
+ # Create a new timer and connect the timer event to our handler.
+ # For WX, the events have to use a widget for binding.
+ self.parent = parent
+ self._timer = wx.Timer(self.parent, wx.NewId())
+ self.parent.Bind(wx.EVT_TIMER, self._on_timer, self._timer)
+
+ # Unbinding causes Wx to stop for some reason. Disabling for now.
+# def __del__(self):
+# import wx
+# TimerBase.__del__(self)
+# self.parent.Bind(wx.EVT_TIMER, None, self._timer)
+
+ def _timer_start(self):
+ self._timer.Start(self._interval, self._single)
+
+ def _timer_stop(self):
+ self._timer.Stop()
+
+ def _timer_set_interval(self):
+ self._timer_start()
+
+ def _timer_set_single_shot(self):
+ self._timer.start()
+
+ def _on_timer(self, *args):
+ TimerBase._on_timer(self)
+
+
class RendererWx(RendererBase):
"""
The renderer handles all the drawing primitives using a graphics
@@ -938,7 +984,6 @@
printout.Destroy()
self.gui_repaint()
-
def draw_idle(self):
"""
Delay rendering until the GUI is idle.
@@ -978,6 +1023,14 @@
self._isDrawn = True
self.gui_repaint(drawDC=drawDC)
+ def new_timer(self):
+ """
+ Creates a new backend-specific subclass of
+ :class:`backend_bases.TimerBase`. This is useful for getting periodic
+ events through the backend's native event loop.
+ """
+ return TimerWx(self)
+
def flush_events(self):
wx.Yield()
This was sent by the SourceForge.net collaborative development platform, the
world's largest Open Source development site.
------------------------------------------------------------------------------
_______________________________________________
Matplotlib-checkins mailing list
Matplotlib-checkins@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-checkins
