utils/wxPython/demo/XMLtreeview.py

   1
   2 import string
   3
   4 from wxPython.wx import *
   5 try:
   6     from xml.parsers import pyexpat
   7     haveXML = true
   8 except ImportError:
   9     haveXML = false
  10
  11 #----------------------------------------------------------------------
  12
  13 if not haveXML:
  14     def runTest(frame, nb, log):
  15         dlg = wxMessageDialog(frame, 'This demo requires the XML package.  See http://www.python.org/sigs/xml-sig/',
  16                           'Sorry', wxOK | wxICON_INFORMATION)
  17         dlg.ShowModal()
  18         dlg.Destroy()
  19
  20 else:
  21
  22     class XMLTree(wxTreeCtrl):
  23         def __init__(self, parent, ID):
  24             wxTreeCtrl.__init__(self, parent, ID)
  25             self.nodeStack = [self.AddRoot("Root")]
  26
  27         # Define a handler for start element events
  28         def StartElement(self, name, attrs ):
  29             self.nodeStack.append(self.AppendItem(self.nodeStack[-1], name))
  30
  31         def EndElement(self,  name ):
  32             self.nodeStack = self.nodeStack[:-1]
  33
  34         def CharacterData(self, data ):
  35             if string.strip(data):
  36                 self.AppendItem(self.nodeStack[-1], data)
  37
  38
  39         def LoadTree(self, filename):
  40             # Create a parser
  41             Parser = pyexpat.ParserCreate()
  42
  43             # Tell the parser what the start element handler is
  44             Parser.StartElementHandler = self.StartElement
  45             Parser.EndElementHandler = self.EndElement
  46             Parser.CharacterDataHandler = self.CharacterData
  47
  48             # Parse the XML File
  49             ParserStatus = Parser.Parse(open(filename,'r').read(), 1)
  50
  51
  52     def runTest(frame, nb, log):
  53         win = XMLTree(nb, -1)
  54         win.LoadTree("paper.xml")
  55         return win
  56
  57 #----------------------------------------------------------------------
  58
  59
  60
  61
  62
  63
  64 overview = """\
  65 """
  66