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-15/tree_icons.py

@@ -0,0 +1,65 @@
+import wx
+import data
+
+class TestFrame(wx.Frame):
+    def __init__(self):
+        wx.Frame.__init__(self, None, 
+                title="simple tree with icons", size=(400,500))
+
+        # Create an image list
+        il = wx.ImageList(16,16)
+
+        # Get some standard images from the art provider and add them
+        # to the image list
+        self.fldridx = il.Add(
+            wx.ArtProvider.GetBitmap(wx.ART_FOLDER, 
+                    wx.ART_OTHER, (16,16)))
+        self.fldropenidx = il.Add(
+            wx.ArtProvider.GetBitmap(wx.ART_FILE_OPEN,   
+                    wx.ART_OTHER, (16,16)))
+        self.fileidx = il.Add(
+            wx.ArtProvider.GetBitmap(wx.ART_NORMAL_FILE, 
+                    wx.ART_OTHER, (16,16)))
+        
+
+        # Create the tree
+        self.tree = wx.TreeCtrl(self)
+        # Give it the image list
+        self.tree.AssignImageList(il)
+        root = self.tree.AddRoot("wx.Object")
+        self.tree.SetItemImage(root, self.fldridx,
+                               wx.TreeItemIcon_Normal)
+        self.tree.SetItemImage(root, self.fldropenidx,
+                               wx.TreeItemIcon_Expanded)
+        
+        self.AddTreeNodes(root, data.tree)
+        self.tree.Expand(root)
+        
+
+    def AddTreeNodes(self, parentItem, items):
+        for item in items:
+            if type(item) == str:
+                newItem = self.tree.AppendItem(parentItem, item)
+                self.tree.SetItemImage(newItem, self.fileidx,
+                                       wx.TreeItemIcon_Normal)
+            else:
+                newItem = self.tree.AppendItem(parentItem, item[0])
+                self.tree.SetItemImage(newItem, self.fldridx,
+                                       wx.TreeItemIcon_Normal)
+                self.tree.SetItemImage(newItem, self.fldropenidx,
+                                       wx.TreeItemIcon_Expanded)
+   
+                self.AddTreeNodes(newItem, item[1])
+                
+
+    def GetItemText(self, item):
+        if item:
+            return self.tree.GetItemText(item)
+        else:
+            return ""
+      
+app = wx.PySimpleApp(redirect=True)
+frame = TestFrame()
+frame.Show()
+app.MainLoop()
+