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/DrawBot.py

@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+
+"""
+DrawBot.py
+
+This a a demo of how one can use the FloatCanvas to do a drawing similar to one of the "DrawBot" demos:
+
+
+http://just.letterror.com/ltrwiki/DrawBot
+
+I think it's easier with FloatCavnas, and you get zoomign and scrolling to boot!
+
+
+"""
+
+import wx
+from math import *
+
+try: # see if there is a local FloatCanvas to use
+    import sys
+    sys.path.append("../")
+    from floatcanvas import NavCanvas, FloatCanvas
+    print "Using local FloatCanvas"
+except ImportError: # Use the wxPython lib one
+    from wx.lib.floatcanvas import NavCanvas, FloatCanvas
+    print "Using installed FloatCanvas"
+
+
+class DrawFrame(wx.Frame):
+
+    """
+    A frame used for the FloatCanvas Demo
+
+    """
+
+    def __init__(self,parent, id,title,position,size):
+        wx.Frame.__init__(self,parent, id,title,position, size)
+
+        # Add the Canvas
+        self.Canvas = NavCanvas.NavCanvas(self,-1,(500,500),
+                                          ProjectionFun = None,
+                                          Debug = 0,
+                                          BackgroundColor = "White",
+                                          ).Canvas
+        
+
+        self.Show(True)
+        self.MakePic()
+                
+        return None
+
+    def MakePic(self):
+        Canvas = self.Canvas
+        phi = (sqrt(5) + 1)/2 - 1
+        oradius = 10.0
+        for i in xrange(720):
+            radius = 1.5 * oradius * sin(i * pi/720)
+            Color = (255*(i / 720.), 255*( i / 720.), 255 * 0.25)
+            x = oradius + 0.25*i*cos(phi*i*2*pi)
+            y = oradius + 0.25*i*sin(phi*i*2*pi)
+            Canvas.AddCircle((x,y),
+                             radius,
+                             LineColor = "Black",
+                             LineWidth = 2,
+                             FillColor = Color,
+                             )
+        self.Canvas.ZoomToBB()
+
+app = wx.PySimpleApp()
+DrawFrame(None, -1, "FloatCanvas Demo App", wx.DefaultPosition, (700,700) )
+app.MainLoop()
+