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/GroupDeleteDemo.py

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+#!/usr/bin/env python
+
+"""
+A small demo of how to use Groups of Objects
+
+"""
+
+import wx
+
+## 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
+        NC = NavCanvas.NavCanvas(self,-1,
+                                     size = (500,500),
+                                     ProjectionFun = None,
+                                     Debug = 0,
+                                     BackgroundColor = "DARK SLATE BLUE",
+                                     )
+        Canvas = NC.Canvas
+        self.Canvas = Canvas
+
+        FloatCanvas.EVT_MOTION(self.Canvas, self.OnMove ) 
+
+        Point = (45,40)
+
+        ## create a few Objects:
+        C = FloatCanvas.Circle((0, 0), 10, FillColor="Red")
+        R = FloatCanvas.Rectangle((5, 5),(15, 8), FillColor="Blue")
+        E = FloatCanvas.Ellipse((1.5, 1.5), (12, 8), FillColor="Purple")
+        C2 = FloatCanvas.Circle((0, 5), 10, FillColor="cyan")
+        T = FloatCanvas.Text("Group A", (5.5, 5.5), Position="cc", Size = 16, Weight=wx.BOLD, Family=wx.SWISS)
+
+        self.GroupA = FloatCanvas.Group((R,C,E))
+        self.GroupA.AddObjects((C2,T))
+        Canvas.AddObject(self.GroupA)
+
+        
+        ## create another Groups of objects
+
+        R = FloatCanvas.Rectangle((15, 15),(10, 18), FillColor="orange")
+        E = FloatCanvas.Ellipse((22, 28), (12, 8), FillColor="yellow")
+        C = FloatCanvas.Circle((25, 20), 15, FillColor="Green")
+        C2 = FloatCanvas.Circle((12, 22), 10, FillColor="cyan")
+        T = FloatCanvas.Text("Group B", (19, 24), Position="cc", Size = 16, Weight=wx.BOLD, Family=wx.SWISS)
+
+        self.GroupB = FloatCanvas.Group((R,E,C,C2,T))
+        Canvas.AddObject(self.GroupB)
+       
+        self.Groups = {"A":self.GroupA, "B":self.GroupB}
+
+        # Add a couple of tools to the Canvas Toolbar
+
+        tb = NC.ToolBar
+#        tb.AddSeparator()
+
+        for Group in self.Groups.keys():
+            Button = wx.Button(tb, wx.ID_ANY, "Remove %s"%Group)
+            tb.AddControl(Button)
+            Button.Bind(wx.EVT_BUTTON, lambda evt, group=Group: self.RemoveGroup(evt, group))
+            Button = wx.Button(tb, wx.ID_ANY, "Replace%s"%Group)
+            tb.AddControl(Button)
+            Button.Bind(wx.EVT_BUTTON, lambda evt, group=Group: self.ReplaceGroup(evt, group))
+        tb.Realize()
+
+        self.Show()
+        Canvas.ZoomToBB()
+
+    def OnMove(self, event):
+        """
+        Updates the status bar with the world coordinates of the mouse position
+
+        """
+        self.SetStatusText("%.2f, %.2f"%tuple(event.Coords))
+
+    def RemoveGroup(self, evt, group=""):
+        print "removing group:", group
+        G = self.Groups[group]
+        self.Canvas.RemoveObject(G)
+        self.Canvas.Draw(Force=True)
+
+    def ReplaceGroup(self, evt, group=""):
+        print "replacing group:", group
+        G = self.Groups[group]
+        self.Canvas.AddObject(G)
+        self.Canvas.Draw(Force=True)
+
+
+app = wx.App(False)
+F = DrawFrame(None, title="FloatCanvas Demo App", size=(700,700) )
+app.MainLoop()
+    
+    
+    
+    
+
+
+
+
+
+
+
+
+