wxWidgets/wxPython/demo/XMLtreeview.py
2003-03-25 06:35:27 +00:00

113 lines
3.1 KiB
Python

import sys
py2 = sys.version[0] == '2'
from wxPython.wx import *
try:
if py2:
from xml.parsers import expat
parsermodule = expat
else:
from xml.parsers import pyexpat
parsermodule = pyexpat
haveXML = True
except ImportError:
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.ShowModal()
dlg.Destroy()
else:
class XMLTree(wxTreeCtrl):
def __init__(self, parent, ID):
wxTreeCtrl.__init__(self, parent, ID)
self.nodeStack = [self.AddRoot("Root")]
# Trees need an image list to do DnD...
self.il = wxImageList(16,16)
self.SetImageList(self.il)
# event handlers for DnD
EVT_TREE_BEGIN_DRAG(self, ID, self.OnBeginDrag)
EVT_TREE_END_DRAG(self, ID, 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 OnEndDrag(self, evt):
itemSrc = self.draggingItem
itemDst = evt.GetItem()
self.draggingItem = None
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 ):
if py2:
name = name.encode()
id = self.AppendItem(self.nodeStack[-1], name)
self.nodeStack.append(id)
def EndElement(self, name ):
self.nodeStack = self.nodeStack[:-1]
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 = parsermodule.ParserCreate()
# 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
#----------------------------------------------------------------------
overview = """\
"""