import sys
import wx
-py2 = sys.version[0] == '2'
-
-try:
- if py2:
- from xml.parsers import expat
- parsermodule = expat
- else:
- from xml.parsers import pyexpat
- parsermodule = pyexpat
- haveXML = True
-except ImportError:
- haveXML = False
+from xml.parsers import expat
#----------------------------------------------------------------------
-if not haveXML:
- def runTest(frame, nb, log):
- dlg = wx.MessageDialog(
- frame, 'This demo requires the XML package. '
- 'See http://www.python.org/sigs/xml-sig/',
- 'Sorry', wx.OK | wx.ICON_INFORMATION
- )
+class XMLTree(wx.TreeCtrl):
+ def __init__(self, parent, ID):
+ wx.TreeCtrl.__init__(self, parent, ID)
+ self._root = self.AddRoot("Root")
+ self.nodeStack = [self._root]
- dlg.ShowModal()
- dlg.Destroy()
+ # Trees need an image list to do DnD...
+ self.il = wx.ImageList(16,16)
+ self.SetImageList(self.il)
-else:
+ # event handlers for DnD
+ self.Bind(wx.EVT_TREE_BEGIN_DRAG, self.OnBeginDrag)
+ self.Bind(wx.EVT_TREE_END_DRAG, self.OnEndDrag)
- class XMLTree(wx.TreeCtrl):
- def __init__(self, parent, ID):
- wx.TreeCtrl.__init__(self, parent, ID)
- self.nodeStack = [self.AddRoot("Root")]
- # Trees need an image list to do DnD...
- self.il = wx.ImageList(16,16)
- self.SetImageList(self.il)
+ def OnBeginDrag(self, event):
+ item = event.GetItem()
- # event handlers for DnD
- self.Bind(wx.EVT_TREE_BEGIN_DRAG, self.OnBeginDrag)
- self.Bind(wx.EVT_TREE_END_DRAG, self.OnEndDrag)
+ 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 OnBeginDrag(self, event):
- item = event.GetItem()
+ def OnEndDrag(self, evt):
+ itemSrc = self.draggingItem
+ itemDst = evt.GetItem()
+ self.draggingItem = None
- if item != self.GetRootItem():
- self.draggingItem = item
- event.Allow() # if DnD of this item is okay Allow it.
+ 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
- def OnEndDrag(self, evt):
- itemSrc = self.draggingItem
- itemDst = evt.GetItem()
- self.draggingItem = None
+ # 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)
- if not itemDst.IsOk():
- print "Can't drag to here..."
- 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 ):
+ name = name.encode()
+ id = self.AppendItem(self.nodeStack[-1], name)
+ self.nodeStack.append(id)
- # Define a handler for start element events
- def StartElement(self, name, attrs ):
- if py2:
- name = name.encode()
+ def EndElement(self, name ):
+ self.nodeStack = self.nodeStack[:-1]
- id = self.AppendItem(self.nodeStack[-1], name)
- self.nodeStack.append(id)
+ def CharacterData(self, data ):
+ if data.strip():
+ data = data.encode()
- def EndElement(self, name ):
- self.nodeStack = self.nodeStack[:-1]
+ self.AppendItem(self.nodeStack[-1], data)
- def CharacterData(self, data ):
- if data.strip():
- if py2:
- data = data.encode()
- self.AppendItem(self.nodeStack[-1], data)
+ def LoadTree(self, filename):
+ # Create a parser
+ Parser = expat.ParserCreate()
+ # Tell the parser what the start element handler is
+ Parser.StartElementHandler = self.StartElement
+ Parser.EndElementHandler = self.EndElement
+ Parser.CharacterDataHandler = self.CharacterData
- def LoadTree(self, filename):
- # Create a parser
- Parser = parsermodule.ParserCreate()
+ # Parse the XML File
+ ParserStatus = Parser.Parse(open(filename,'r').read(), 1)
- # Tell the parser what the start element handler is
- Parser.StartElementHandler = self.StartElement
- Parser.EndElementHandler = self.EndElement
- Parser.CharacterDataHandler = self.CharacterData
- # Parse the XML File
- ParserStatus = Parser.Parse(open(filename,'r').read(), 1)
-
-
- def runTest(frame, nb, log):
- win = XMLTree(nb, -1)
- win.LoadTree("paper.xml")
- return win
+def runTest(frame, nb, log):
+ win = XMLTree(nb, -1)
+ win.LoadTree("paper.xml")
+ return win
#----------------------------------------------------------------------
if __name__ == '__main__':
import sys,os
import run
- run.main(['', os.path.basename(sys.argv[0])])
+ run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
projects / wxWidgets.git / blobdiff