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/Hexagons.py

@@ -0,0 +1,102 @@
+#!/usr/bin/env python
+
+"""
+A simple demo to display a lot of hexagons
+
+This was an example someone had on the wxPython-users list
+
+"""
+import wx
+import wx.lib.colourdb
+
+## import local version:
+#import sys
+#sys.path.append("..")
+#from floatcanvas import NavCanvas, FloatCanvas
+
+## import installed version
+from wx.lib.floatcanvas import NavCanvas, FloatCanvas
+
+NumHexagons = 1000
+
+import numpy as N
+from numpy.random import uniform
+
+import  random
+import time
+
+class DrawFrame(wx.Frame):
+    """
+    A frame used for the FloatCanvas Demo
+
+    """
+    def __init__(self, *args, **kwargs):
+        wx.Frame.__init__(self, *args, **kwargs)
+
+        # Add the Canvas
+        self.Canvas = NavCanvas.NavCanvas(self,-1,(500,500),
+                                          ProjectionFun = None,
+                                          Debug = 1,
+                                          BackgroundColor = "DARK SLATE BLUE",
+                                          ).Canvas
+        self.MakeHexagons()
+
+        self.Show(True)
+        print "Drawing the Hexagons"
+        self.Canvas.ZoomToBB()
+
+        return None
+
+    def MakeHexagons(self):
+        print "Building %i Hexagons"%NumHexagons
+        # get a list of colors for random colors
+        
+        wx.lib.colourdb.updateColourDB()
+        self.colors = wx.lib.colourdb.getColourList()
+        print "Max colors:", len(self.colors) 
+        Canvas = self.Canvas
+        D = 1.0
+        h = D *N.sqrt(3)/2
+        Hex = N.array(((D   , 0),
+                     (D/2 , -h),
+                     (-D/2, -h),
+                     (-D  , 0),
+                     (-D/2, h),
+                     (D/2 , h),
+                     )) 
+        Centers = uniform(-100, 100, (NumHexagons, 2))
+        for center in Centers:
+            # scale the hexagon
+            Points = Hex * uniform(5,20)
+            #print Points
+            # shift the hexagon
+            Points = Points + center
+            #print Points
+            cf = random.randint(0,len(self.colors)-1)
+            #cf = 55
+            H = Canvas.AddPolygon(Points, LineColor = None, FillColor = self.colors[cf])
+            #print "BrushList is: %i long"%len(H.BrushList)
+            H.Bind(FloatCanvas.EVT_FC_LEFT_DOWN, self.HexHit)
+            print "BrushList is: %i long"%len(H.BrushList)
+
+    def HexHit(self, Hex):
+        print "A %s Hex was hit, obj ID: %i"%(Hex.FillColor, id(Hex))
+
+
+
+app = wx.App(False)
+DrawFrame(None, -1, "FloatCanvas Demo App", wx.DefaultPosition, (700,700) )
+app.MainLoop()
+    
+    
+    
+    
+
+
+
+
+
+
+
+
+