88 lines
2.4 KiB
Python
88 lines
2.4 KiB
Python
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"""
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Build a GUI Tree (wxWindows) from an XML file
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using pyExpat
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"""
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import sys,string
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from xml.parsers import pyexpat
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from wxPython.wx import *
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class MyFrame(wxFrame):
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def __init__(self, parent, id, title):
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wxFrame.__init__(self, parent, id, title, wxPoint(100, 100), wxSize(160,100))
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menu = wxMenu()
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menu.Append (1001,"Open")
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menu.Append (1002,"Close")
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menu.Append (1003,"Exit")
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menubar = wxMenuBar()
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menubar.Append (menu,"File")
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self.SetMenuBar(menubar)
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class MyApp(wxApp):
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def OnInit(self):
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self.frame = MyFrame(NULL, -1, "Tree View of XML")
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self.tree = wx.wxTreeCtrl(self.frame, -1)
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EVT_MENU(self, 1001, self.OnOpen)
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EVT_MENU(self, 1002, self.OnClose)
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EVT_MENU(self, 1003, self.OnExit)
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self.frame.Show(true)
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self.SetTopWindow(self.frame)
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return true
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def OnOpen(self,event):
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f = wxFileDialog(self.frame,"Select a file",".","","*.xml",wxOPEN)
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if f.ShowModal() == wxID_OK:
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LoadTree(f.GetPath())
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def OnClose(self,event):
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self.tree = wx.wxTreeCtrl(self.frame, -1)
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pass
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def OnExit(self,event):
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self.OnCloseWindow(event)
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def OnCloseWindow(self, event):
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self.frame.Destroy()
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NodeStack = []
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# Define a handler for start element events
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def StartElement( name, attrs ):
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global NodeStack
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NodeStack.append(app.tree.AppendItem(NodeStack[-1],name))
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def EndElement( name ):
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global NodeStack
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NodeStack = NodeStack[:-1]
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def CharacterData ( data ):
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global NodeStack
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if string.strip(data):
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app.tree.AppendItem(NodeStack[-1],data)
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def LoadTree (f):
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print f
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# Create a parser
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Parser = pyexpat.ParserCreate()
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# Tell the parser what the start element handler is
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Parser.StartElementHandler = StartElement
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Parser.EndElementHandler = EndElement
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Parser.CharacterDataHandler = CharacterData
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# Parse the XML File
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ParserStatus = Parser.Parse(open(f,'r').read(), 1)
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if ParserStatus == 0:
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print "oops!"
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raise SystemExit
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app = MyApp(0)
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NodeStack = [app.tree.AddRoot("Root")]
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app.MainLoop()
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raise SystemExit
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