Added the sample code from wxPython In Action to the samples dir

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/samples/wxPIA_book/Chapter-07/gauge.py

@@ -0,0 +1,23 @@
+import wx
+
+class GaugeFrame(wx.Frame):
+    def __init__(self):
+        wx.Frame.__init__(self, None, -1, 'Gauge Example', 
+                size=(350, 150))
+        panel = wx.Panel(self, -1)
+        self.count = 0
+        self.gauge = wx.Gauge(panel, -1, 50, (20, 50), (250, 25))
+        self.gauge.SetBezelFace(3)
+        self.gauge.SetShadowWidth(3)
+        self.Bind(wx.EVT_IDLE, self.OnIdle)
+
+    def OnIdle(self, event):
+        self.count = self.count + 1
+        if self.count >= 50:
+            self.count = 0
+        self.gauge.SetValue(self.count)
+        
+if __name__ == '__main__':
+    app = wx.PySimpleApp()
+    GaugeFrame().Show()
+    app.MainLoop()