Add the FloatCanvas demo modules

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/Phoenix/trunk@73860 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/floatcanvas/ScaledBitmap2Demo.py

@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+
+"""
+This demo shows how to use a ScaledBitmap2 (which is like a scaled bitmap,
+but uses memory more efficiently for large images and high zoom levels.)
+
+
+"""
+
+## Set a path to an Image file here:
+ImageFile = "white_tank.jpg" 
+
+
+import wx
+import random
+
+## import the installed version
+from wx.lib.floatcanvas import NavCanvas, FloatCanvas
+
+## import a local version
+#import sys
+#sys.path.append("../")
+#from floatcanvas import NavCanvas, FloatCanvas
+
+class DrawFrame(wx.Frame):
+
+    """
+    A frame used for the FloatCanvas Demo
+
+    """
+
+    def __init__(self, *args, **kwargs):
+        wx.Frame.__init__(self, *args, **kwargs)
+        self.CreateStatusBar()
+
+        # Add the Canvas
+        Canvas = NavCanvas.NavCanvas(self,
+                                     ProjectionFun = None,
+                                     BackgroundColor = "DARK SLATE BLUE",
+                                     ).Canvas
+        Canvas.MaxScale=20 # sets the maximum zoom level
+        self.Canvas = Canvas
+
+        FloatCanvas.EVT_MOTION(self.Canvas, self.OnMove ) 
+
+        
+        # create the image:
+        image = wx.Image(ImageFile)
+        self.width, self.height = image.GetSize()
+        img = FloatCanvas.ScaledBitmap2( image,
+                                        (0,0),
+                                        Height=image.GetHeight(),
+                                        Position = 'tl',
+                                        )
+        Canvas.AddObject(img)
+        
+        self.Show()
+        Canvas.ZoomToBB()
+        
+    def OnMove(self, event):
+        """
+        Updates the status bar with the world coordinates
+
+        """
+        self.SetStatusText("%i, %i"%tuple(event.Coords))
+
+
+app = wx.App(False)
+F = DrawFrame(None, title="FloatCanvas Demo App", size=(700,700) )
+app.MainLoop()
+    
+    
+    
+    
+
+
+
+
+
+
+
+
+