added wxVaCopy() and use it to fix wxVsnprintf() crash (see bug 1017651)

[wxWidgets.git] / wxPython / demo / XMLtreeview.py

diff --git a/wxPython/demo/XMLtreeview.py b/wxPython/demo/XMLtreeview.py
index c53e4010c930d05091c15d993e9d0ebd80d358e3..91a624e179dad82ee619ed1cbf3a701b21d55e73 100644 (file)
--- a/wxPython/demo/XMLtreeview.py
+++ b/wxPython/demo/XMLtreeview.py
@@ -1,9 +1,9 @@
 
-import string, sys
+import  sys
+import  wx
 
 py2 = sys.version[0] == '2'
 
-from wxPython.wx import *
 try:
     if py2:
         from xml.parsers import expat
@@ -11,31 +11,83 @@ try:
     else:
         from xml.parsers import pyexpat
         parsermodule = pyexpat
-    haveXML = true
+    haveXML = True
 except ImportError:
-    haveXML = false
+    haveXML = False
 
 #----------------------------------------------------------------------
 
 if not haveXML:
     def runTest(frame, nb, log):
-        dlg = wxMessageDialog(frame, 'This demo requires the XML package.  '
-                              'See http://www.python.org/sigs/xml-sig/',
-                          'Sorry', wxOK | wxICON_INFORMATION)
+        dlg = wx.MessageDialog(
+                frame, 'This demo requires the XML package.  '
+                'See http://www.python.org/sigs/xml-sig/',
+                'Sorry', wx.OK | wx.ICON_INFORMATION
+                )
+
         dlg.ShowModal()
         dlg.Destroy()
 
 else:
 
-    class XMLTree(wxTreeCtrl):
+    class XMLTree(wx.TreeCtrl):
         def __init__(self, parent, ID):
-            wxTreeCtrl.__init__(self, parent, ID)
-            self.nodeStack = [self.AddRoot("Root")]
+            wx.TreeCtrl.__init__(self, parent, ID)
+            self._root = self.AddRoot("Root")
+            self.nodeStack = [self._root]
+
+            # Trees need an image list to do DnD...
+            self.il = wx.ImageList(16,16)
+            self.SetImageList(self.il)
+
+            # event handlers for DnD
+            self.Bind(wx.EVT_TREE_BEGIN_DRAG, self.OnBeginDrag)
+            self.Bind(wx.EVT_TREE_END_DRAG, self.OnEndDrag)
+
+
+        def OnBeginDrag(self, event):
+            item = event.GetItem()
+
+            if item != self.GetRootItem():
+                self.draggingItem = item
+                event.Allow()  # if DnD of this item is okay Allow it.
+
+        def IsDescendant(self, firstItem, secondItem):
+            "Recursive check if firstItem is a descendant of a secondItem."
+            if firstItem == self._root:
+                return False
+            parentItem = self.GetItemParent(firstItem)
+            if parentItem == secondItem:
+                return True
+            else:
+                return self.IsDescendant(parentItem, secondItem)
+
+        def OnEndDrag(self, evt):
+            itemSrc = self.draggingItem
+            itemDst = evt.GetItem()
+            self.draggingItem = None
+
+            if not itemDst.IsOk():
+                print "Can't drag to here..."
+                return
+
+            if self.IsDescendant(itemDst, itemSrc):
+                print "Can't move item to its descendant"
+                return
+
+            # For this simple example just take the text of the source item
+            # and append it to the destination item.  In real life you would
+            # possibly want to copy subtrees...
+            text = self.GetItemText(itemSrc)
+            self.AppendItem(itemDst, text)
+            self.Delete(itemSrc)
+
 
         # Define a handler for start element events
         def StartElement(self, name, attrs ):
             if py2:
                 name = name.encode()
+
             id = self.AppendItem(self.nodeStack[-1], name)
             self.nodeStack.append(id)
 
@@ -43,9 +95,10 @@ else:
             self.nodeStack = self.nodeStack[:-1]
 
         def CharacterData(self, data ):
-            if string.strip(data):
+            if data.strip():
                 if py2:
                     data = data.encode()
+
                 self.AppendItem(self.nodeStack[-1], data)
 
 
@@ -71,9 +124,11 @@ else:
 
 
 
-
-
-
 overview = """\
 """
 
+
+if __name__ == '__main__':
+    import sys,os
+    import run
+    run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])