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[wxWidgets.git] / wxPython / wx / tools / XRCed / xrced.py
index d5a3be7b2c108eb2ff572faaf1cb1a0b8ed23754..fcc27120a7d601732c26321d8aa956d2c035fb01 100644 (file)
+# Name:         xrced.py
+# Purpose:      XRC editor, main module
+# Author:       Roman Rolinsky <rolinsky@mema.ucl.ac.be>
+# Created:      20.08.2001
+# RCS-ID:       $Id$
 
 
-"""Renamer stub: provides a way to drop the wx prefix from wxPython objects."""
+"""
 
 
-from wx import _rename
-from wxPython.tools.XRCed import xrced
-_rename(globals(), xrced.__dict__, modulename='tools.XRCed.xrced')
-del xrced
-del _rename
+xrced -- Simple resource editor for XRC format used by wxWindows/wxPython
+         GUI toolkit.
+
+Usage:
+
+    xrced [ -h ] [ -v ] [ XRC-file ]
+
+Options:
+
+    -h          output short usage info and exit
+
+    -v          output version info and exit
+"""
+
+from globals import *
+import os, sys, getopt, re, traceback, tempfile, shutil, cPickle
+
+# Local modules
+from tree import *                      # imports xxx which imports params
+from panel import *
+from tools import *
+# Cleanup recursive import sideeffects, otherwise we can't create undoMan
+import undo
+undo.ParamPage = ParamPage
+undoMan = g.undoMan = UndoManager()
+
+# Set application path for loading resources
+if __name__ == '__main__':
+    basePath = os.path.dirname(sys.argv[0])
+else:
+    basePath = os.path.dirname(__file__)
+
+# 1 adds CMD command to Help menu
+debug = 0
+
+g.helpText = """\
+<HTML><H2>Welcome to XRC<font color="blue">ed</font></H2><H3><font color="green">DON'T PANIC :)</font></H3>
+Read this note before clicking on anything!<P>
+To start select tree root, then popup menu with your right mouse button,
+select "Append Child", and then any command.<P>
+Or just press one of the buttons on the tools palette.<P>
+Enter XML ID, change properties, create children.<P>
+To test your interface select Test command (View menu).<P>
+Consult README file for the details.</HTML>
+"""
+
+defaultIDs = {xxxPanel:'PANEL', xxxDialog:'DIALOG', xxxFrame:'FRAME',
+              xxxMenuBar:'MENUBAR', xxxMenu:'MENU', xxxToolBar:'TOOLBAR',
+              xxxWizard:'WIZARD', xxxBitmap:'BITMAP', xxxIcon:'ICON'}
+
+defaultName = 'UNTITLED.xrc'
+
+################################################################################
+
+# ScrolledMessageDialog - modified from wxPython lib to set fixed-width font
+class ScrolledMessageDialog(wxDialog):
+    def __init__(self, parent, msg, caption, pos = wxDefaultPosition, size = (500,300)):
+        from wxPython.lib.layoutf import Layoutf
+        wxDialog.__init__(self, parent, -1, caption, pos, size)
+        text = wxTextCtrl(self, -1, msg, wxDefaultPosition,
+                             wxDefaultSize, wxTE_MULTILINE | wxTE_READONLY)
+        text.SetFont(g.modernFont())
+        dc = wxWindowDC(text)
+        # !!! possible bug - GetTextExtent without font returns sysfont dims
+        w, h = dc.GetFullTextExtent(' ', g.modernFont())[:2]
+        ok = wxButton(self, wxID_OK, "OK")
+        text.SetConstraints(Layoutf('t=t5#1;b=t5#2;l=l5#1;r=r5#1', (self,ok)))
+        text.SetSize((w * 80 + 30, h * 40))
+        text.ShowPosition(1)
+        ok.SetConstraints(Layoutf('b=b5#1;x%w50#1;w!80;h!25', (self,)))
+        self.SetAutoLayout(True)
+        self.Fit()
+        self.CenterOnScreen(wxBOTH)
+
+################################################################################
+
+# Event handler for using during location
+class Locator(wxEvtHandler):
+    def ProcessEvent(self, evt):
+        print evt
+
+class Frame(wxFrame):
+    def __init__(self, pos, size):
+        wxFrame.__init__(self, None, -1, '', pos, size)
+        global frame
+        frame = g.frame = self
+        bar = self.CreateStatusBar(2)
+        bar.SetStatusWidths([-1, 40])
+        self.SetIcon(images.getIconIcon())
+
+        # Idle flag
+        self.inIdle = False
+
+        # Load our own resources
+        self.res = wxXmlResource('')
+        # !!! Blocking of assert failure occurring in older unicode builds
+        try:
+            self.res.Load(os.path.join(basePath, 'xrced.xrc'))
+        except wx._core.PyAssertionError:
+            print 'PyAssertionError was ignored'
+
+        # Make menus
+        menuBar = wxMenuBar()
+
+        menu = wxMenu()
+        menu.Append(wxID_NEW, '&New\tCtrl-N', 'New file')
+        menu.AppendSeparator()
+        menu.Append(wxID_OPEN, '&Open...\tCtrl-O', 'Open XRC file')
+        self.recentMenu = wxMenu()
+        self.AppendRecent(self.recentMenu)
+        menu.AppendMenu(-1, 'Open Recent', self.recentMenu, 'Open a recent file')
+        menu.AppendSeparator()
+        menu.Append(wxID_SAVE, '&Save\tCtrl-S', 'Save XRC file')
+        menu.Append(wxID_SAVEAS, 'Save &As...', 'Save XRC file under different name')
+        menu.AppendSeparator()
+        menu.Append(wxID_EXIT, '&Quit\tCtrl-Q', 'Exit application')
+
+        menuBar.Append(menu, '&File')
+
+        menu = wxMenu()
+        menu.Append(wxID_UNDO, '&Undo\tCtrl-Z', 'Undo')
+        menu.Append(wxID_REDO, '&Redo\tCtrl-Y', 'Redo')
+        menu.AppendSeparator()
+        menu.Append(wxID_CUT, 'Cut\tCtrl-X', 'Cut to the clipboard')
+        menu.Append(wxID_COPY, '&Copy\tCtrl-C', 'Copy to the clipboard')
+        menu.Append(wxID_PASTE, '&Paste\tCtrl-V', 'Paste from the clipboard')
+        self.ID_DELETE = wxNewId()
+        menu.Append(self.ID_DELETE, '&Delete\tCtrl-D', 'Delete object')
+        menu.AppendSeparator()
+        self.ID_LOCATE = wxNewId()
+        self.ID_TOOL_LOCATE = wxNewId()
+        self.ID_TOOL_PASTE = wxNewId()
+        menu.Append(self.ID_LOCATE, '&Locate\tCtrl-L', 'Locate control in test window and select it')
+        menuBar.Append(menu, '&Edit')
+
+        menu = wxMenu()
+        self.ID_EMBED_PANEL = wxNewId()
+        menu.Append(self.ID_EMBED_PANEL, '&Embed Panel',
+                    'Toggle embedding properties panel in the main window', True)
+        menu.Check(self.ID_EMBED_PANEL, conf.embedPanel)
+        self.ID_SHOW_TOOLS = wxNewId()
+        menu.Append(self.ID_SHOW_TOOLS, 'Show &Tools', 'Toggle tools', True)
+        menu.Check(self.ID_SHOW_TOOLS, conf.showTools)
+        menu.AppendSeparator()
+        self.ID_TEST = wxNewId()
+        menu.Append(self.ID_TEST, '&Test\tF5', 'Show test window')
+        self.ID_REFRESH = wxNewId()
+        menu.Append(self.ID_REFRESH, '&Refresh\tCtrl-R', 'Refresh test window')
+        self.ID_AUTO_REFRESH = wxNewId()
+        menu.Append(self.ID_AUTO_REFRESH, '&Auto-refresh\tCtrl-A',
+                    'Toggle auto-refresh mode', True)
+        menu.Check(self.ID_AUTO_REFRESH, conf.autoRefresh)
+        self.ID_TEST_HIDE = wxNewId()
+        menu.Append(self.ID_TEST_HIDE, '&Hide\tCtrl-H', 'Close test window')
+        menuBar.Append(menu, '&View')
+
+        menu = wxMenu()
+        menu.Append(wxID_ABOUT, '&About...', 'About XCRed')
+        self.ID_README = wxNewId()
+        menu.Append(self.ID_README, '&Readme...', 'View the README file')
+        if debug:
+            self.ID_DEBUG_CMD = wxNewId()
+            menu.Append(self.ID_DEBUG_CMD, 'CMD', 'Python command line')
+            EVT_MENU(self, self.ID_DEBUG_CMD, self.OnDebugCMD)
+        menuBar.Append(menu, '&Help')
+
+        self.menuBar = menuBar
+        self.SetMenuBar(menuBar)
+
+        # Create toolbar
+        tb = self.CreateToolBar(wxTB_HORIZONTAL | wxNO_BORDER | wxTB_FLAT)
+        tb.SetToolBitmapSize((24,24))
+        new_bmp  = wx.ArtProvider.GetBitmap(wx.ART_NORMAL_FILE, wx.ART_TOOLBAR)
+        open_bmp = wx.ArtProvider.GetBitmap(wx.ART_FILE_OPEN, wx.ART_TOOLBAR)
+        save_bmp = wx.ArtProvider.GetBitmap(wx.ART_FILE_SAVE, wx.ART_TOOLBAR)
+        undo_bmp = wx.ArtProvider.GetBitmap(wx.ART_UNDO, wx.ART_TOOLBAR)
+        redo_bmp = wx.ArtProvider.GetBitmap(wx.ART_REDO, wx.ART_TOOLBAR)
+        cut_bmp  = wx.ArtProvider.GetBitmap(wx.ART_CUT, wx.ART_TOOLBAR)
+        copy_bmp = wx.ArtProvider.GetBitmap(wx.ART_COPY, wx.ART_TOOLBAR)
+        paste_bmp= wx.ArtProvider.GetBitmap(wx.ART_PASTE, wx.ART_TOOLBAR)
+        
+        tb.AddSimpleTool(wxID_NEW, new_bmp, 'New', 'New file')
+        tb.AddSimpleTool(wxID_OPEN, open_bmp, 'Open', 'Open file')
+        tb.AddSimpleTool(wxID_SAVE, save_bmp, 'Save', 'Save file')
+        tb.AddControl(wxStaticLine(tb, -1, size=(-1,23), style=wxLI_VERTICAL))
+        tb.AddSimpleTool(wxID_UNDO, undo_bmp, 'Undo', 'Undo')
+        tb.AddSimpleTool(wxID_REDO, redo_bmp, 'Redo', 'Redo')
+        tb.AddControl(wxStaticLine(tb, -1, size=(-1,23), style=wxLI_VERTICAL))
+        tb.AddSimpleTool(wxID_CUT, cut_bmp, 'Cut', 'Cut')
+        tb.AddSimpleTool(wxID_COPY, copy_bmp, 'Copy', 'Copy')
+        tb.AddSimpleTool(self.ID_TOOL_PASTE, paste_bmp, 'Paste', 'Paste')
+        tb.AddControl(wxStaticLine(tb, -1, size=(-1,23), style=wxLI_VERTICAL))
+        tb.AddSimpleTool(self.ID_TOOL_LOCATE,
+                        images.getLocateBitmap(), #images.getLocateArmedBitmap(),
+                        'Locate', 'Locate control in test window and select it', True)
+        tb.AddControl(wxStaticLine(tb, -1, size=(-1,23), style=wxLI_VERTICAL))
+        tb.AddSimpleTool(self.ID_TEST, images.getTestBitmap(), 'Test', 'Test window')
+        tb.AddSimpleTool(self.ID_REFRESH, images.getRefreshBitmap(),
+                         'Refresh', 'Refresh view')
+        tb.AddSimpleTool(self.ID_AUTO_REFRESH, images.getAutoRefreshBitmap(),
+                         'Auto-refresh', 'Toggle auto-refresh mode', True)
+#        if wxPlatform == '__WXGTK__':
+#            tb.AddSeparator()   # otherwise auto-refresh sticks in status line
+        tb.ToggleTool(self.ID_AUTO_REFRESH, conf.autoRefresh)
+        tb.Realize()
+        self.tb = tb
+        self.minWidth = tb.GetSize()[0] # minimal width is the size of toolbar
+
+        # File
+        EVT_MENU(self, wxID_NEW, self.OnNew)
+        EVT_MENU(self, wxID_OPEN, self.OnOpen)
+        EVT_MENU(self, wxID_SAVE, self.OnSaveOrSaveAs)
+        EVT_MENU(self, wxID_SAVEAS, self.OnSaveOrSaveAs)
+        EVT_MENU(self, wxID_EXIT, self.OnExit)
+        # Edit
+        EVT_MENU(self, wxID_UNDO, self.OnUndo)
+        EVT_MENU(self, wxID_REDO, self.OnRedo)
+        EVT_MENU(self, wxID_CUT, self.OnCutDelete)
+        EVT_MENU(self, wxID_COPY, self.OnCopy)
+        EVT_MENU(self, wxID_PASTE, self.OnPaste)
+        EVT_MENU(self, self.ID_TOOL_PASTE, self.OnPaste)
+        EVT_MENU(self, self.ID_DELETE, self.OnCutDelete)
+        EVT_MENU(self, self.ID_LOCATE, self.OnLocate)
+        EVT_MENU(self, self.ID_TOOL_LOCATE, self.OnLocate)
+        # View
+        EVT_MENU(self, self.ID_EMBED_PANEL, self.OnEmbedPanel)
+        EVT_MENU(self, self.ID_SHOW_TOOLS, self.OnShowTools)
+        EVT_MENU(self, self.ID_TEST, self.OnTest)
+        EVT_MENU(self, self.ID_REFRESH, self.OnRefresh)
+        EVT_MENU(self, self.ID_AUTO_REFRESH, self.OnAutoRefresh)
+        EVT_MENU(self, self.ID_TEST_HIDE, self.OnTestHide)
+        # Help
+        EVT_MENU(self, wxID_ABOUT, self.OnAbout)
+        EVT_MENU(self, self.ID_README, self.OnReadme)
+
+        # Update events
+        EVT_UPDATE_UI(self, wxID_SAVE, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, wxID_CUT, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, wxID_COPY, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, wxID_PASTE, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, self.ID_LOCATE, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, self.ID_TOOL_LOCATE, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, self.ID_TOOL_PASTE, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, wxID_UNDO, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, wxID_REDO, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, self.ID_DELETE, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, self.ID_TEST, self.OnUpdateUI)
+        EVT_UPDATE_UI(self, self.ID_REFRESH, self.OnUpdateUI)
+
+        # Build interface
+        sizer = wxBoxSizer(wxVERTICAL)
+        sizer.Add(wxStaticLine(self, -1), 0, wxEXPAND)
+        # Horizontal sizer for toolbar and splitter
+        self.toolsSizer = sizer1 = wxBoxSizer()
+        splitter = wxSplitterWindow(self, -1, style=wxSP_3DSASH)
+        self.splitter = splitter
+        splitter.SetMinimumPaneSize(100)
+        # Create tree
+        global tree
+        g.tree = tree = XML_Tree(splitter, -1)
+
+        # Init pull-down menu data
+        global pullDownMenu
+        g.pullDownMenu = pullDownMenu = PullDownMenu(self)
+
+        # Vertical toolbar for GUI buttons
+        g.tools = tools = Tools(self)
+        tools.Show(conf.showTools)
+        if conf.showTools: sizer1.Add(tools, 0, wxEXPAND)
+
+        tree.RegisterKeyEvents()
+
+        # !!! frame styles are broken
+        # Miniframe for not embedded mode
+        miniFrame = wxFrame(self, -1, 'Properties & Style',
+                            (conf.panelX, conf.panelY),
+                            (conf.panelWidth, conf.panelHeight))
+        self.miniFrame = miniFrame
+        sizer2 = wxBoxSizer()
+        miniFrame.SetAutoLayout(True)
+        miniFrame.SetSizer(sizer2)
+        EVT_CLOSE(self.miniFrame, self.OnCloseMiniFrame)
+        # Create panel for parameters
+        global panel
+        if conf.embedPanel:
+            panel = Panel(splitter)
+            # Set plitter windows
+            splitter.SplitVertically(tree, panel, conf.sashPos)
+        else:
+            panel = Panel(miniFrame)
+            sizer2.Add(panel, 1, wxEXPAND)
+            miniFrame.Show(True)
+            splitter.Initialize(tree)
+        sizer1.Add(splitter, 1, wxEXPAND)
+        sizer.Add(sizer1, 1, wxEXPAND)
+        self.SetAutoLayout(True)
+        self.SetSizer(sizer)
+
+        # Initialize
+        self.Clear()
+
+        # Other events
+        EVT_IDLE(self, self.OnIdle)
+        EVT_CLOSE(self, self.OnCloseWindow)
+        EVT_KEY_DOWN(self, tools.OnKeyDown)
+        EVT_KEY_UP(self, tools.OnKeyUp)
+        EVT_ICONIZE(self, self.OnIconize)
+    
+    def AppendRecent(self, menu):
+        # add recently used files to the menu
+        for id,name in conf.recentfiles.iteritems():
+            menu.Append(id,name)
+            EVT_MENU(self,id,self.OnRecentFile)
+        return 
+        
+    def OnRecentFile(self,evt):
+        # open recently used file
+        if not self.AskSave(): return
+        wxBeginBusyCursor()
+        try:
+            path=conf.recentfiles[evt.GetId()]
+            if self.Open(path):
+                self.SetStatusText('Data loaded')
+            else:
+                self.SetStatusText('Failed')
+        except KeyError:
+            self.SetStatusText('No such file')
+        wxEndBusyCursor()
+
+    def OnNew(self, evt):
+        if not self.AskSave(): return
+        self.Clear()
+
+    def OnOpen(self, evt):
+        if not self.AskSave(): return
+        dlg = wxFileDialog(self, 'Open', os.path.dirname(self.dataFile),
+                           '', '*.xrc', wxOPEN | wxCHANGE_DIR)
+        if dlg.ShowModal() == wxID_OK:
+            path = dlg.GetPath()
+            self.SetStatusText('Loading...')
+            wxBeginBusyCursor()
+            try:
+                if self.Open(path):
+                    self.SetStatusText('Data loaded')
+                else:
+                    self.SetStatusText('Failed')
+                self.SaveRecent(path)
+            finally:
+                wxEndBusyCursor()
+        dlg.Destroy()
+
+    def OnSaveOrSaveAs(self, evt):
+        if evt.GetId() == wxID_SAVEAS or not self.dataFile:
+            if self.dataFile: name = ''
+            else: name = defaultName
+            dirname = os.path.abspath(os.path.dirname(self.dataFile))
+            dlg = wxFileDialog(self, 'Save As', dirname, name, '*.xrc',
+                               wxSAVE | wxOVERWRITE_PROMPT | wxCHANGE_DIR)
+            if dlg.ShowModal() == wxID_OK:
+                path = dlg.GetPath()
+                dlg.Destroy()
+            else:
+                dlg.Destroy()
+                return
+        else:
+            path = self.dataFile
+        self.SetStatusText('Saving...')
+        wxBeginBusyCursor()
+        try:
+            try:
+                tmpFile,tmpName = tempfile.mkstemp(prefix='xrced-')
+                os.close(tmpFile)
+                self.Save(tmpName) # save temporary file first
+                shutil.move(tmpName, path)
+                self.dataFile = path
+                self.SetStatusText('Data saved')
+                self.SaveRecent(path)
+            except IOError:
+                self.SetStatusText('Failed')
+        finally:
+            wxEndBusyCursor()        
+
+    def SaveRecent(self,path):
+        # append to recently used files
+        if path not in conf.recentfiles.values():
+            newid = wxNewId()
+            self.recentMenu.Append(newid, path)
+            EVT_MENU(self, newid, self.OnRecentFile)
+            conf.recentfiles[newid] = path
+
+    def OnExit(self, evt):
+        self.Close()
+
+    def OnUndo(self, evt):
+        # Extra check to not mess with idle updating
+        if undoMan.CanUndo():
+            undoMan.Undo()
+
+    def OnRedo(self, evt):
+        if undoMan.CanRedo():
+            undoMan.Redo()
+
+    def OnCopy(self, evt):
+        selected = tree.selection
+        if not selected: return         # key pressed event
+        xxx = tree.GetPyData(selected)
+        wx.TheClipboard.Open()
+        data = wx.CustomDataObject('XRCED')
+        data.SetData(cPickle.dumps(xxx.element))
+        wx.TheClipboard.SetData(data)
+        wx.TheClipboard.Close()
+        self.SetStatusText('Copied')
+
+    def OnPaste(self, evt):
+        selected = tree.selection
+        if not selected: return         # key pressed event
+        # For pasting with Ctrl pressed
+        appendChild = True
+        if evt.GetId() == pullDownMenu.ID_PASTE_SIBLING: appendChild = False
+        elif evt.GetId() == self.ID_TOOL_PASTE:
+            if g.tree.ctrl: appendChild = False
+            else: appendChild = not tree.NeedInsert(selected)
+        else: appendChild = not tree.NeedInsert(selected)
+        xxx = tree.GetPyData(selected)
+        if not appendChild:
+            # If has next item, insert, else append to parent
+            nextItem = tree.GetNextSibling(selected)
+            parentLeaf = tree.GetItemParent(selected)
+        # Expanded container (must have children)
+        elif tree.IsExpanded(selected) and tree.GetChildrenCount(selected, False):
+            # Insert as first child
+            nextItem = tree.GetFirstChild(selected)[0]
+            parentLeaf = selected
+        else:
+            # No children or unexpanded item - appendChild stays True
+            nextItem = wxTreeItemId()   # no next item
+            parentLeaf = selected
+        parent = tree.GetPyData(parentLeaf).treeObject()
+
+        # Create a copy of clipboard pickled element
+        wx.TheClipboard.Open()
+        data = wx.CustomDataObject('XRCED')
+        if not wx.TheClipboard.IsSupported(data.GetFormat()):
+            wx.TheClipboard.Close()
+            wx.LogError('unsupported clipboard format')
+            return
+        wx.TheClipboard.GetData(data)
+        wx.TheClipboard.Close()
+        elem = cPickle.loads(data.GetData())
+        # Tempopary xxx object to test things
+        xxx = MakeXXXFromDOM(parent, elem)
+
+        # Check compatibility
+        error = False
+        # Top-level
+        x = xxx.treeObject()
+        if x.__class__ in [xxxDialog, xxxFrame, xxxMenuBar, xxxWizard]:
+            # Top-level classes
+            if parent.__class__ != xxxMainNode: error = True
+        elif x.__class__ == xxxToolBar:
+            # Toolbar can be top-level of child of panel or frame
+            if parent.__class__ not in [xxxMainNode, xxxPanel, xxxFrame] and \
+               not parent.isSizer: error = True
+        elif x.__class__ == xxxPanel and parent.__class__ == xxxMainNode:
+            pass
+        elif x.__class__ == xxxSpacer:
+            if not parent.isSizer: error = True
+        elif x.__class__ == xxxSeparator:
+            if not parent.__class__ in [xxxMenu, xxxToolBar]: error = True
+        elif x.__class__ == xxxTool:
+            if parent.__class__ != xxxToolBar: error = True
+        elif x.__class__ == xxxMenu:
+            if not parent.__class__ in [xxxMainNode, xxxMenuBar, xxxMenu]: error = True
+        elif x.__class__ == xxxMenuItem:
+            if not parent.__class__ in [xxxMenuBar, xxxMenu]: error = True
+        elif x.isSizer and parent.__class__ in [xxxNotebook, xxxChoicebook, xxxListbook]:
+            error = True
+        else:                           # normal controls can be almost anywhere
+            if parent.__class__ == xxxMainNode or \
+               parent.__class__ in [xxxMenuBar, xxxMenu]: error = True
+        if error:
+            if parent.__class__ == xxxMainNode: parentClass = 'root'
+            else: parentClass = parent.className
+            wxLogError('Incompatible parent/child: parent is %s, child is %s!' %
+                       (parentClass, x.className))
+            return
+
+        # Check parent and child relationships.
+        # If parent is sizer or notebook, child is of wrong class or
+        # parent is normal window, child is child container then detach child.
+        isChildContainer = isinstance(xxx, xxxChildContainer)
+        parentIsBook = parent.__class__ in [xxxNotebook, xxxChoicebook, xxxListbook]
+        if isChildContainer and \
+           ((parent.isSizer and not isinstance(xxx, xxxSizerItem)) or \
+            (parentIsBook and not isinstance(xxx, xxxPage)) or \
+           not (parent.isSizer or parentIsBook)):
+            elem.removeChild(xxx.child.element) # detach child
+            elem.unlink()           # delete child container
+            elem = xxx.child.element # replace
+            # This may help garbage collection
+            xxx.child.parent = None
+            isChildContainer = False
+        # Parent is sizer or notebook, child is not child container
+        if parent.isSizer and not isChildContainer and not isinstance(xxx, xxxSpacer):
+            # Create sizer item element
+            sizerItemElem = MakeEmptyDOM(parent.itemTag)
+            sizerItemElem.appendChild(elem)
+            elem = sizerItemElem
+        elif isinstance(parent, xxxNotebook) and not isChildContainer:
+            pageElem = MakeEmptyDOM('notebookpage')
+            pageElem.appendChild(elem)
+            elem = pageElem
+        elif isinstance(parent, xxxChoicebook) and not isChildContainer:
+            pageElem = MakeEmptyDOM('choicebookpage')
+            pageElem.appendChild(elem)
+            elem = pageElem
+        elif isinstance(parent, xxxListbook) and not isChildContainer:
+            pageElem = MakeEmptyDOM('listbookpage')
+            pageElem.appendChild(elem)
+            elem = pageElem
+        # Insert new node, register undo
+        newItem = tree.InsertNode(parentLeaf, parent, elem, nextItem)
+        undoMan.RegisterUndo(UndoPasteCreate(parentLeaf, parent, newItem, selected))
+        # Scroll to show new item (!!! redundant?)
+        tree.EnsureVisible(newItem)
+        tree.SelectItem(newItem)
+        if not tree.IsVisible(newItem):
+            tree.ScrollTo(newItem)
+            tree.Refresh()
+        # Update view?
+        if g.testWin and tree.IsHighlatable(newItem):
+            if conf.autoRefresh:
+                tree.needUpdate = True
+                tree.pendingHighLight = newItem
+            else:
+                tree.pendingHighLight = None
+        self.SetModified()
+        self.SetStatusText('Pasted')
+
+    def OnCutDelete(self, evt):
+        selected = tree.selection
+        if not selected: return         # key pressed event
+        # Undo info
+        if evt.GetId() == wxID_CUT:
+            self.lastOp = 'CUT'
+            status = 'Removed to clipboard'
+        else:
+            self.lastOp = 'DELETE'
+            status = 'Deleted'
+        # Delete testWin?
+        if g.testWin:
+            # If deleting top-level item, delete testWin
+            if selected == g.testWin.item:
+                g.testWin.Destroy()
+                g.testWin = None
+            else:
+                # Remove highlight, update testWin
+                if g.testWin.highLight:
+                    g.testWin.highLight.Remove()
+                tree.needUpdate = True
+        # Prepare undo data
+        panel.Apply()
+        index = tree.ItemFullIndex(selected)
+        parent = tree.GetPyData(tree.GetItemParent(selected)).treeObject()
+        elem = tree.RemoveLeaf(selected)
+        undoMan.RegisterUndo(UndoCutDelete(index, parent, elem))
+        if evt.GetId() == wxID_CUT:
+            wx.TheClipboard.Open()
+            data = wx.CustomDataObject('XRCED')
+            data.SetData(cPickle.dumps(elem))
+            wx.TheClipboard.SetData(data)
+            wx.TheClipboard.Close()
+        tree.pendingHighLight = None
+        tree.UnselectAll()
+        tree.selection = None
+        # Update tools
+        g.tools.UpdateUI()
+        panel.Clear()
+        self.SetModified()
+        self.SetStatusText(status)
+
+    def OnSubclass(self, evt):
+        selected = tree.selection
+        xxx = tree.GetPyData(selected).treeObject()
+        elem = xxx.element
+        subclass = xxx.subclass
+        dlg = wxTextEntryDialog(self, 'Subclass:', defaultValue=subclass)
+        if dlg.ShowModal() == wxID_OK:
+            subclass = dlg.GetValue()
+            if subclass:
+                elem.setAttribute('subclass', subclass)
+            elif elem.hasAttribute('subclass'):
+                elem.removeAttribute('subclass')
+            self.SetModified()
+            xxx.subclass = elem.getAttribute('subclass')
+            tree.SetItemText(selected, xxx.treeName())
+            panel.pages[0].box.SetLabel(xxx.panelName())
+        dlg.Destroy()
+
+    def OnEmbedPanel(self, evt):
+        conf.embedPanel = evt.IsChecked()
+        if conf.embedPanel:
+            # Remember last dimentions
+            conf.panelX, conf.panelY = self.miniFrame.GetPosition()
+            conf.panelWidth, conf.panelHeight = self.miniFrame.GetSize()
+            size = self.GetSize()
+            pos = self.GetPosition()
+            sizePanel = panel.GetSize()
+            panel.Reparent(self.splitter)
+            self.miniFrame.GetSizer().Remove(panel)
+            # Widen
+            self.SetDimensions(pos.x, pos.y, size.width + sizePanel.width, size.height)
+            self.splitter.SplitVertically(tree, panel, conf.sashPos)
+            self.miniFrame.Show(False)
+        else:
+            conf.sashPos = self.splitter.GetSashPosition()
+            pos = self.GetPosition()
+            size = self.GetSize()
+            sizePanel = panel.GetSize()
+            self.splitter.Unsplit(panel)
+            sizer = self.miniFrame.GetSizer()
+            panel.Reparent(self.miniFrame)
+            panel.Show(True)
+            sizer.Add(panel, 1, wxEXPAND)
+            self.miniFrame.Show(True)
+            self.miniFrame.SetDimensions(conf.panelX, conf.panelY,
+                                         conf.panelWidth, conf.panelHeight)
+            # Reduce width
+            self.SetDimensions(pos.x, pos.y,
+                               max(size.width - sizePanel.width, self.minWidth), size.height)
+
+    def OnShowTools(self, evt):
+        conf.showTools = evt.IsChecked()
+        g.tools.Show(conf.showTools)
+        if conf.showTools:
+            self.toolsSizer.Prepend(g.tools, 0, wxEXPAND)
+        else:
+            self.toolsSizer.Remove(g.tools)
+        self.toolsSizer.Layout()
+        
+    def OnTest(self, evt):
+        if not tree.selection: return   # key pressed event
+        tree.ShowTestWindow(tree.selection)
+
+    def OnTestHide(self, evt):
+        tree.CloseTestWindow()
+
+    # Find object by relative position
+    def FindObject(self, item, obj):
+        # We simply perform depth-first traversal, sinse it's too much
+        # hassle to deal with all sizer/window combinations
+        w = tree.FindNodeObject(item)
+        if w == obj:
+            return item
+        if tree.ItemHasChildren(item):
+            child = tree.GetFirstChild(item)[0]
+            while child:
+                found = self.FindObject(child, obj)
+                if found: return found
+                child = tree.GetNextSibling(child)
+        return None
+
+    def OnTestWinLeftDown(self, evt):
+        pos = evt.GetPosition()
+        self.SetHandler(g.testWin)
+        g.testWin.Disconnect(wxID_ANY, wxID_ANY, wxEVT_LEFT_DOWN)
+        item = self.FindObject(g.testWin.item, evt.GetEventObject())
+        if item:
+            tree.SelectItem(item)
+        self.tb.ToggleTool(self.ID_TOOL_LOCATE, False)
+        if item:
+            self.SetStatusText('Selected %s' % tree.GetItemText(item))
+        else:
+            self.SetStatusText('Locate failed!')
+
+    def SetHandler(self, w, h=None):
+        if h:
+            w.SetEventHandler(h)
+            w.SetCursor(wxCROSS_CURSOR)
+        else:
+            w.SetEventHandler(w)
+            w.SetCursor(wxNullCursor)
+        for ch in w.GetChildren():
+            self.SetHandler(ch, h)
+
+    def OnLocate(self, evt):
+        if g.testWin:
+            if evt.GetId() == self.ID_LOCATE or \
+               evt.GetId() == self.ID_TOOL_LOCATE and evt.IsChecked():
+                self.SetHandler(g.testWin, g.testWin)
+                g.testWin.Connect(wxID_ANY, wxID_ANY, wxEVT_LEFT_DOWN, self.OnTestWinLeftDown)
+                if evt.GetId() == self.ID_LOCATE:
+                    self.tb.ToggleTool(self.ID_TOOL_LOCATE, True)
+            elif evt.GetId() == self.ID_TOOL_LOCATE and not evt.IsChecked():
+                self.SetHandler(g.testWin, None)
+                g.testWin.Disconnect(wxID_ANY, wxID_ANY, wxEVT_LEFT_DOWN)
+            self.SetStatusText('Click somewhere in your test window now')
+
+    def OnRefresh(self, evt):
+        # If modified, apply first
+        selection = tree.selection
+        if selection:
+            xxx = tree.GetPyData(selection)
+            if xxx and panel.IsModified():
+                tree.Apply(xxx, selection)
+        if g.testWin:
+            # (re)create
+            tree.CreateTestWin(g.testWin.item)
+        panel.modified = False
+        tree.needUpdate = False
+
+    def OnAutoRefresh(self, evt):
+        conf.autoRefresh = evt.IsChecked()
+        self.menuBar.Check(self.ID_AUTO_REFRESH, conf.autoRefresh)
+        self.tb.ToggleTool(self.ID_AUTO_REFRESH, conf.autoRefresh)
+
+    def OnAbout(self, evt):
+        str = '''\
+XRCed version %s
+
+(c) Roman Rolinsky <rollrom@users.sourceforge.net>
+Homepage: http://xrced.sourceforge.net\
+''' % version
+        dlg = wxMessageDialog(self, str, 'About XRCed', wxOK | wxCENTRE)
+        dlg.ShowModal()
+        dlg.Destroy()
+
+    def OnReadme(self, evt):
+        text = open(os.path.join(basePath, 'README.txt'), 'r').read()
+        dlg = ScrolledMessageDialog(self, text, "XRCed README")
+        dlg.ShowModal()
+        dlg.Destroy()
+
+    # Simple emulation of python command line
+    def OnDebugCMD(self, evt):
+        while 1:
+            try:
+                exec raw_input('C:\> ')
+            except EOFError:
+                print '^D'
+                break
+            except:
+                (etype, value, tb) =sys.exc_info()
+                tblist =traceback.extract_tb(tb)[1:]
+                msg =' '.join(traceback.format_exception_only(etype, value)
+                        +traceback.format_list(tblist))
+                print msg
+
+    def OnCreate(self, evt):
+        selected = tree.selection
+        if tree.ctrl: appendChild = False
+        else: appendChild = not tree.NeedInsert(selected)
+        xxx = tree.GetPyData(selected)
+        if not appendChild:
+            # If insert before
+            if tree.shift:
+                # If has previous item, insert after it, else append to parent
+                nextItem = selected
+                parentLeaf = tree.GetItemParent(selected)
+            else:
+                # If has next item, insert, else append to parent
+                nextItem = tree.GetNextSibling(selected)
+                parentLeaf = tree.GetItemParent(selected)
+        # Expanded container (must have children)
+        elif tree.shift and tree.IsExpanded(selected) \
+           and tree.GetChildrenCount(selected, False):
+            nextItem = tree.GetFirstChild(selected)[0]
+            parentLeaf = selected
+        else:
+            nextItem = wxTreeItemId()
+            parentLeaf = selected
+        parent = tree.GetPyData(parentLeaf)
+        if parent.hasChild: parent = parent.child
+
+        # Create object_ref?
+        if evt.GetId() == ID_NEW.REF:
+            ref = wxGetTextFromUser('Create reference to:', 'Create reference')
+            if not ref: return
+            xxx = MakeEmptyRefXXX(parent, ref)
+        else:
+            # Create empty element
+            className = pullDownMenu.createMap[evt.GetId()]
+            xxx = MakeEmptyXXX(parent, className)
+
+        # Set default name for top-level windows
+        if parent.__class__ == xxxMainNode:
+            cl = xxx.treeObject().__class__
+            frame.maxIDs[cl] += 1
+            xxx.setTreeName('%s%d' % (defaultIDs[cl], frame.maxIDs[cl]))
+        # And for some other standard controls
+        elif parent.__class__ == xxxStdDialogButtonSizer:
+            xxx.setTreeName(pullDownMenu.stdButtonIDs[evt.GetId()][0])
+            # We can even set label
+            obj = xxx.treeObject()
+            elem = g.tree.dom.createElement('label')
+            elem.appendChild(g.tree.dom.createTextNode(pullDownMenu.stdButtonIDs[evt.GetId()][1]))
+            obj.params['label'] = xxxParam(elem)
+            xxx.treeObject().element.appendChild(elem)
+
+        # Insert new node, register undo
+        elem = xxx.element
+        newItem = tree.InsertNode(parentLeaf, parent, elem, nextItem)
+        undoMan.RegisterUndo(UndoPasteCreate(parentLeaf, parent, newItem, selected))
+        tree.EnsureVisible(newItem)
+        tree.SelectItem(newItem)
+        if not tree.IsVisible(newItem):
+            tree.ScrollTo(newItem)
+            tree.Refresh()
+        # Update view?
+        if g.testWin and tree.IsHighlatable(newItem):
+            if conf.autoRefresh:
+                tree.needUpdate = True
+                tree.pendingHighLight = newItem
+            else:
+                tree.pendingHighLight = None
+        tree.SetFocus()
+        self.SetModified()
+
+    # Replace one object with another
+    def OnReplace(self, evt):
+        selected = tree.selection
+        xxx = tree.GetPyData(selected).treeObject()
+        elem = xxx.element
+        parent = elem.parentNode
+        undoMan.RegisterUndo(UndoReplace(selected))
+        # New class
+        className = pullDownMenu.createMap[evt.GetId() - 1000]
+        # Create temporary empty node (with default values)
+        dummy = MakeEmptyDOM(className)
+        if className == 'spacer' and xxx.className != 'spacer':
+            klass = xxxSpacer
+        elif xxx.className == 'spacer' and className != 'spacer':
+            klass = xxxSizerItem
+        else:
+            klass = xxxDict[className]
+        # Remove non-compatible children
+        if tree.ItemHasChildren(selected) and not klass.hasChildren:
+            tree.DeleteChildren(selected)
+        nodes = elem.childNodes[:]
+        tags = []
+        for node in nodes:
+            if node.nodeType != minidom.Node.ELEMENT_NODE: continue
+            remove = False
+            tag = node.tagName
+            if tag == 'object':
+                if not klass.hasChildren:  remove = True
+            elif tag not in klass.allParams and \
+                     (not klass.hasStyle or tag not in klass.styles):
+                remove = True
+            else:
+                tags.append(tag)
+            if remove:
+                elem.removeChild(node)
+                node.unlink()
+        
+        # Remove sizeritem child if spacer
+        if className == 'spacer' and xxx.className != 'spacer':
+            sizeritem = elem.parentNode
+            assert sizeritem.getAttribute('class') == 'sizeritem'
+            sizeritem.removeChild(elem)
+            elem.unlink()
+            elem = sizeritem
+            tree.GetPyData(selected).hasChild = false
+        elif xxx.className == 'spacer' and className != 'spacer':
+            # Create sizeritem element
+            assert xxx.parent.isSizer
+            elem.setAttribute('class', 'sizeritem')
+            node = MakeEmptyDOM(className)
+            elem.appendChild(node)
+            # Replace to point to new object
+            xxx = xxxSizerItem(xxx.parent, elem)
+            elem = node
+            tree.SetPyData(selected, xxx)
+            xxx = xxx.child
+        else:
+            # Copy parameters present in dummy but not in elem
+            for node in dummy.childNodes:
+                if node.tagName not in tags:  elem.appendChild(node.cloneNode(True))
+        dummy.unlink()
+        
+        # Change class name
+        elem.setAttribute('class', className)
+        if elem.hasAttribute('subclass'):
+            elem.removeAttribute('subclass') # clear subclassing
+        # Re-create xxx element
+        xxx = MakeXXXFromDOM(xxx.parent, elem)
+        # Update parent in child objects
+        if tree.ItemHasChildren(selected):
+            i, cookie = tree.GetFirstChild(selected)
+            while i.IsOk():
+                x = tree.GetPyData(i)
+                x.parent = xxx
+                if x.hasChild: x.child.parent = xxx
+                i, cookie = tree.GetNextChild(selected, cookie)
+
+        # Update tree
+        if tree.GetPyData(selected).hasChild: # child container
+            container = tree.GetPyData(selected)
+            container.child = xxx
+            container.hasChildren = xxx.hasChildren
+            container.isSizer = xxx.isSizer
+            xxx = container
+        else:
+            tree.SetPyData(selected, xxx)
+        tree.SetItemText(selected, xxx.treeName())
+        tree.SetItemImage(selected, xxx.treeImage())
+
+        # Set default name for top-level windows
+        if parent.__class__ == xxxMainNode:
+            cl = xxx.treeObject().__class__
+            frame.maxIDs[cl] += 1
+            xxx.setTreeName('%s%d' % (defaultIDs[cl], frame.maxIDs[cl]))
+
+        # Update panel
+        g.panel.SetData(xxx)
+        # Update tools
+        g.tools.UpdateUI()
+
+        #undoMan.RegisterUndo(UndoPasteCreate(parentLeaf, parent, newItem, selected))
+        # Update view?
+        if g.testWin and tree.IsHighlatable(selected):
+            if conf.autoRefresh:
+                tree.needUpdate = True
+                tree.pendingHighLight = selected
+            else:
+                tree.pendingHighLight = None
+        tree.SetFocus()
+        self.SetModified()
+
+    # Expand/collapse subtree
+    def OnExpand(self, evt):
+        if tree.selection: tree.ExpandAll(tree.selection)
+        else: tree.ExpandAll(tree.root)
+    def OnCollapse(self, evt):
+        if tree.selection: tree.CollapseAll(tree.selection)
+        else: tree.CollapseAll(tree.root)
+
+    def OnPullDownHighlight(self, evt):
+        menuId = evt.GetMenuId()
+        if menuId != -1:
+            menu = evt.GetEventObject()
+            help = menu.GetHelpString(menuId)
+            self.SetStatusText(help)
+        else:
+            self.SetStatusText('')
+
+    def OnUpdateUI(self, evt):
+        if evt.GetId() in [wxID_CUT, wxID_COPY, self.ID_DELETE]:
+            evt.Enable(tree.selection is not None and tree.selection != tree.root)
+        elif evt.GetId() == wxID_SAVE:
+            evt.Enable(self.modified)
+        elif evt.GetId() in [wxID_PASTE, self.ID_TOOL_PASTE]:
+            evt.Enable(tree.selection is not None)
+        elif evt.GetId() == self.ID_TEST:
+            evt.Enable(tree.selection is not None and tree.selection != tree.root)
+        elif evt.GetId() in [self.ID_LOCATE, self.ID_TOOL_LOCATE]:
+            evt.Enable(g.testWin is not None)
+        elif evt.GetId() == wxID_UNDO:  evt.Enable(undoMan.CanUndo())
+        elif evt.GetId() == wxID_REDO:  evt.Enable(undoMan.CanRedo())
+
+    def OnIdle(self, evt):
+        if self.inIdle: return          # Recursive call protection
+        self.inIdle = True
+        try:
+            if tree.needUpdate:
+                if conf.autoRefresh:
+                    if g.testWin:
+                        self.SetStatusText('Refreshing test window...')
+                        # (re)create
+                        tree.CreateTestWin(g.testWin.item)
+                        self.SetStatusText('')
+                    tree.needUpdate = False
+            elif tree.pendingHighLight:
+                try:
+                    tree.HighLight(tree.pendingHighLight)
+                except:
+                    # Remove highlight if any problem
+                    if g.testWin.highLight:
+                        g.testWin.highLight.Remove()
+                    tree.pendingHighLight = None
+                    raise
+            else:
+                evt.Skip()
+        finally:
+            self.inIdle = False
+
+    # We don't let close panel window
+    def OnCloseMiniFrame(self, evt):
+        return
+
+    def OnIconize(self, evt):
+        conf.x, conf.y = self.GetPosition()
+        conf.width, conf.height = self.GetSize()
+        if conf.embedPanel:
+            conf.sashPos = self.splitter.GetSashPosition()
+        else:
+            conf.panelX, conf.panelY = self.miniFrame.GetPosition()
+            conf.panelWidth, conf.panelHeight = self.miniFrame.GetSize()
+            self.miniFrame.Iconize()
+        evt.Skip()
+
+    def OnCloseWindow(self, evt):
+        if not self.AskSave(): return
+        if g.testWin: g.testWin.Destroy()
+        if not panel.GetPageCount() == 2:
+            panel.page2.Destroy()
+        else:
+            # If we don't do this, page does not get destroyed (a bug?)
+            panel.RemovePage(1)
+        if not self.IsIconized():
+            conf.x, conf.y = self.GetPosition()
+            conf.width, conf.height = self.GetSize()
+            if conf.embedPanel:
+                conf.sashPos = self.splitter.GetSashPosition()
+            else:
+                conf.panelX, conf.panelY = self.miniFrame.GetPosition()
+                conf.panelWidth, conf.panelHeight = self.miniFrame.GetSize()
+        evt.Skip()
+
+    def Clear(self):
+        self.dataFile = ''
+        undoMan.Clear()
+        self.SetModified(False)
+        tree.Clear()
+        panel.Clear()
+        if g.testWin:
+            g.testWin.Destroy()
+            g.testWin = None
+        # Numbers for new controls
+        self.maxIDs = {}
+        for cl in [xxxPanel, xxxDialog, xxxFrame,
+                   xxxMenuBar, xxxMenu, xxxToolBar,
+                   xxxWizard, xxxBitmap, xxxIcon]:
+            self.maxIDs[cl] = 0
+
+    def SetModified(self, state=True):
+        self.modified = state
+        name = os.path.basename(self.dataFile)
+        if not name: name = defaultName
+        if state:
+            self.SetTitle(progname + ': ' + name + ' *')
+        else:
+            self.SetTitle(progname + ': ' + name)
+
+    def Open(self, path):
+        if not os.path.exists(path):
+            wxLogError('File does not exists: %s' % path)
+            return False
+        # Try to read the file
+        try:
+            f = open(path)
+            self.Clear()
+            dom = minidom.parse(f)
+            f.close()
+            # Set encoding global variable and default encoding
+            if dom.encoding:
+                g.currentEncoding = dom.encoding
+                wx.SetDefaultPyEncoding(g.currentEncoding.encode())
+            else:
+                g.currentEncoding = ''
+            # Change dir
+            self.dataFile = path = os.path.abspath(path)
+            dir = os.path.dirname(path)
+            if dir: os.chdir(dir)
+            tree.SetData(dom)
+            self.SetTitle(progname + ': ' + os.path.basename(path))
+        except:
+            # Nice exception printing
+            inf = sys.exc_info()
+            wxLogError(traceback.format_exception(inf[0], inf[1], None)[-1])
+            wxLogError('Error reading file: %s' % path)
+            if debug: raise
+            return False
+        return True
+
+    def Indent(self, node, indent = 0):
+        # Copy child list because it will change soon
+        children = node.childNodes[:]
+        # Main node doesn't need to be indented
+        if indent:
+            text = self.domCopy.createTextNode('\n' + ' ' * indent)
+            node.parentNode.insertBefore(text, node)
+        if children:
+            # Append newline after last child, except for text nodes
+            if children[-1].nodeType == minidom.Node.ELEMENT_NODE:
+                text = self.domCopy.createTextNode('\n' + ' ' * indent)
+                node.appendChild(text)
+            # Indent children which are elements
+            for n in children:
+                if n.nodeType == minidom.Node.ELEMENT_NODE:
+                    self.Indent(n, indent + 2)
+
+    def Save(self, path):
+        try:
+            import codecs
+            # Apply changes
+            if tree.selection and panel.IsModified():
+                self.OnRefresh(wxCommandEvent())
+            if g.currentEncoding:
+                f = codecs.open(path, 'wt', g.currentEncoding)
+            else:
+                f = codecs.open(path, 'wt')
+            # Make temporary copy for formatting it
+            # !!! We can't clone dom node, it works only once
+            #self.domCopy = tree.dom.cloneNode(True)
+            self.domCopy = MyDocument()
+            mainNode = self.domCopy.appendChild(tree.mainNode.cloneNode(True))
+            # Remove first child (test element)
+            testElem = mainNode.firstChild
+            mainNode.removeChild(testElem)
+            testElem.unlink()
+            self.Indent(mainNode)
+            self.domCopy.writexml(f, encoding = g.currentEncoding)
+            f.close()
+            self.domCopy.unlink()
+            self.domCopy = None
+            self.SetModified(False)
+            panel.SetModified(False)
+        except:
+            inf = sys.exc_info()
+            wxLogError(traceback.format_exception(inf[0], inf[1], None)[-1])
+            wxLogError('Error writing file: %s' % path)
+            raise
+
+    def AskSave(self):
+        if not (self.modified or panel.IsModified()): return True
+        flags = wxICON_EXCLAMATION | wxYES_NO | wxCANCEL | wxCENTRE
+        dlg = wxMessageDialog( self, 'File is modified. Save before exit?',
+                               'Save before too late?', flags )
+        say = dlg.ShowModal()
+        dlg.Destroy()
+        if say == wxID_YES:
+            self.OnSaveOrSaveAs(wxCommandEvent(wxID_SAVE))
+            # If save was successful, modified flag is unset
+            if not self.modified: return True
+        elif say == wxID_NO:
+            self.SetModified(False)
+            panel.SetModified(False)
+            return True
+        return False
+
+    def SaveUndo(self):
+        pass                            # !!!
+
+################################################################################
+
+def usage():
+    print >> sys.stderr, 'usage: xrced [-dhiv] [file]'
+
+class App(wxApp):
+    def OnInit(self):
+        # Check version
+        if wxVERSION[:3] < MinWxVersion:
+            wxLogWarning('''\
+This version of XRCed may not work correctly on your version of wxWindows. \
+Please upgrade wxWindows to %d.%d.%d or higher.''' % MinWxVersion)
+        global debug
+        # Process comand-line
+        opts = args = None
+        try:
+            opts, args = getopt.getopt(sys.argv[1:], 'dhiv')
+            for o,a in opts:
+                if o == '-h':
+                    usage()
+                    sys.exit(0)
+                elif o == '-d':
+                    debug = True
+                elif o == '-v':
+                    print 'XRCed version', version
+                    sys.exit(0)
+            
+        except getopt.GetoptError:
+            if wxPlatform != '__WXMAC__': # macs have some extra parameters
+                print >> sys.stderr, 'Unknown option'
+                usage()
+                sys.exit(1)
+
+        self.SetAppName('xrced')
+        # Settings
+        global conf
+        conf = g.conf = wxConfig(style = wxCONFIG_USE_LOCAL_FILE)
+        conf.autoRefresh = conf.ReadInt('autorefresh', True)
+        pos = conf.ReadInt('x', -1), conf.ReadInt('y', -1)
+        size = conf.ReadInt('width', 800), conf.ReadInt('height', 600)
+        conf.embedPanel = conf.ReadInt('embedPanel', True)
+        conf.showTools = conf.ReadInt('showTools', True)
+        conf.sashPos = conf.ReadInt('sashPos', 200)
+        # read recently used files
+        recentfiles=conf.Read('recentFiles','')
+        conf.recentfiles={}
+        if recentfiles:
+            for fil in recentfiles.split('|'):
+                conf.recentfiles[wxNewId()]=fil
+        if not conf.embedPanel:
+            conf.panelX = conf.ReadInt('panelX', -1)
+            conf.panelY = conf.ReadInt('panelY', -1)
+        else:
+            conf.panelX = conf.panelY = -1
+        conf.panelWidth = conf.ReadInt('panelWidth', 200)
+        conf.panelHeight = conf.ReadInt('panelHeight', 200)
+        conf.panic = not conf.HasEntry('nopanic')
+        # Add handlers
+        wxFileSystem_AddHandler(wxMemoryFSHandler())
+        wxInitAllImageHandlers()
+        # Create main frame
+        frame = Frame(pos, size)
+        frame.Show(True)
+
+        # Load file after showing
+        if args:
+            conf.panic = False
+            frame.open = frame.Open(args[0])
+
+        return True
+
+    def OnExit(self):
+        # Write config
+        global conf
+        wc = wxConfigBase_Get()
+        wc.WriteInt('autorefresh', conf.autoRefresh)
+        wc.WriteInt('x', conf.x)
+        wc.WriteInt('y', conf.y)
+        wc.WriteInt('width', conf.width)
+        wc.WriteInt('height', conf.height)
+        wc.WriteInt('embedPanel', conf.embedPanel)
+        wc.WriteInt('showTools', conf.showTools)
+        if not conf.embedPanel:
+            wc.WriteInt('panelX', conf.panelX)
+            wc.WriteInt('panelY', conf.panelY)
+        wc.WriteInt('sashPos', conf.sashPos)
+        wc.WriteInt('panelWidth', conf.panelWidth)
+        wc.WriteInt('panelHeight', conf.panelHeight)
+        wc.WriteInt('nopanic', True)
+        wc.Write('recentFiles', '|'.join(conf.recentfiles.values()[-5:]))
+        wc.Flush()
+
+def main():
+    app = App(0, useBestVisual=False)
+    #app.SetAssertMode(wxPYAPP_ASSERT_LOG)
+    app.MainLoop()
+    app.OnExit()
+    global conf
+    del conf
+
+if __name__ == '__main__':
+    main()