]> git.saurik.com Git - wxWidgets.git/blobdiff - wxPython/wx/lib/mixins/listctrl.py
Compile fixes for Panther
[wxWidgets.git] / wxPython / wx / lib / mixins / listctrl.py
index a0919a077d17e928dc2b661387415c2f47991cb7..921e25041570936cec15d70e56252ce3c42d4717 100644 (file)
@@ -1,8 +1,794 @@
+#----------------------------------------------------------------------------
+# Name:        wxPython.lib.mixins.listctrl
+# Purpose:     Helpful mix-in classes for wxListCtrl
+#
+# Author:      Robin Dunn
+#
+# Created:     15-May-2001
+# RCS-ID:      $Id$
+# Copyright:   (c) 2001 by Total Control Software
+# Licence:     wxWindows license
+#----------------------------------------------------------------------------
+# 12/14/2003 - Jeff Grimmett (grimmtooth@softhome.net)
+#
+# o 2.5 compatability update.
+# o ListCtrlSelectionManagerMix untested.
+#
+# 12/21/2003 - Jeff Grimmett (grimmtooth@softhome.net)
+#
+# o wxColumnSorterMixin -> ColumnSorterMixin 
+# o wxListCtrlAutoWidthMixin -> ListCtrlAutoWidthMixin
+# ...
+# 13/10/2004 - Pim Van Heuven (pim@think-wize.com)
+# o wxTextEditMixin: Support Horizontal scrolling when TAB is pressed on long
+#       ListCtrls, support for WXK_DOWN, WXK_UP, performance improvements on
+#       very long ListCtrls, Support for virtual ListCtrls
+#
+# 15-Oct-2004 - Robin Dunn
+# o wxTextEditMixin: Added Shift-TAB support
+#
 
-"""Renamer stub: provides a way to drop the wx prefix from wxPython objects."""
+import  locale
+import  wx
 
-from wx import _rename
-from wxPython.lib.mixins import listctrl
-_rename(globals(), listctrl.__dict__, modulename='lib.mixins.listctrl')
-del listctrl
-del _rename
+#----------------------------------------------------------------------------
+
+class ColumnSorterMixin:
+    """
+    A mixin class that handles sorting of a wx.ListCtrl in REPORT mode when
+    the column header is clicked on.
+
+    There are a few requirments needed in order for this to work genericly:
+
+      1. The combined class must have a GetListCtrl method that
+         returns the wx.ListCtrl to be sorted, and the list control
+         must exist at the time the wx.ColumnSorterMixin.__init__
+         method is called because it uses GetListCtrl.
+
+      2. Items in the list control must have a unique data value set
+         with list.SetItemData.
+
+      3. The combined class must have an attribute named itemDataMap
+         that is a dictionary mapping the data values to a sequence of
+         objects representing the values in each column.  These values
+         are compared in the column sorter to determine sort order.
+
+    Interesting methods to override are GetColumnSorter,
+    GetSecondarySortValues, and GetSortImages.  See below for details.
+    """
+
+    def __init__(self, numColumns):
+        self.SetColumnCount(numColumns)
+        list = self.GetListCtrl()
+        if not list:
+            raise ValueError, "No wx.ListCtrl available"
+        list.Bind(wx.EVT_LIST_COL_CLICK, self.__OnColClick, list)
+
+
+    def SetColumnCount(self, newNumColumns):
+        self._colSortFlag = [0] * newNumColumns
+        self._col = -1
+
+
+    def SortListItems(self, col=-1, ascending=1):
+        """Sort the list on demand.  Can also be used to set the sort column and order."""
+        oldCol = self._col
+        if col != -1:
+            self._col = col
+            self._colSortFlag[col] = ascending
+        self.GetListCtrl().SortItems(self.GetColumnSorter())
+        self.__updateImages(oldCol)
+
+
+    def GetColumnWidths(self):
+        """
+        Returns a list of column widths.  Can be used to help restore the current
+        view later.
+        """
+        list = self.GetListCtrl()
+        rv = []
+        for x in range(len(self._colSortFlag)):
+            rv.append(list.GetColumnWidth(x))
+        return rv
+
+
+    def GetSortImages(self):
+        """
+        Returns a tuple of image list indexesthe indexes in the image list for an image to be put on the column
+        header when sorting in descending order.
+        """
+        return (-1, -1)  # (decending, ascending) image IDs
+
+
+    def GetColumnSorter(self):
+        """Returns a callable object to be used for comparing column values when sorting."""
+        return self.__ColumnSorter
+
+
+    def GetSecondarySortValues(self, col, key1, key2):
+        """Returns a tuple of 2 values to use for secondary sort values when the
+           items in the selected column match equal.  The default just returns the
+           item data values."""
+        return (key1, key2)
+
+
+    def __OnColClick(self, evt):
+        oldCol = self._col
+        self._col = col = evt.GetColumn()
+        self._colSortFlag[col] = int(not self._colSortFlag[col])
+        self.GetListCtrl().SortItems(self.GetColumnSorter())
+        if wx.Platform != "__WXMAC__" or wx.SystemOptions.GetOptionInt("mac.listctrl.always_use_generic") == 1:
+            self.__updateImages(oldCol)
+        evt.Skip()
+
+
+    def __ColumnSorter(self, key1, key2):
+        col = self._col
+        ascending = self._colSortFlag[col]
+        item1 = self.itemDataMap[key1][col]
+        item2 = self.itemDataMap[key2][col]
+
+        #--- Internationalization of string sorting with locale module
+        if type(item1) == type('') or type(item2) == type(''):
+            cmpVal = locale.strcoll(str(item1), str(item2))
+        else:
+            cmpVal = cmp(item1, item2)
+        #---
+
+        # If the items are equal then pick something else to make the sort value unique
+        if cmpVal == 0:
+            cmpVal = apply(cmp, self.GetSecondarySortValues(col, key1, key2))
+
+        if ascending:
+            return cmpVal
+        else:
+            return -cmpVal
+
+
+    def __updateImages(self, oldCol):
+        sortImages = self.GetSortImages()
+        if self._col != -1 and sortImages[0] != -1:
+            img = sortImages[self._colSortFlag[self._col]]
+            list = self.GetListCtrl()
+            if oldCol != -1:
+                list.ClearColumnImage(oldCol)
+            list.SetColumnImage(self._col, img)
+
+
+#----------------------------------------------------------------------------
+#----------------------------------------------------------------------------
+
+class ListCtrlAutoWidthMixin:
+    """ A mix-in class that automatically resizes the last column to take up
+        the remaining width of the wx.ListCtrl.
+
+        This causes the wx.ListCtrl to automatically take up the full width of
+        the list, without either a horizontal scroll bar (unless absolutely
+        necessary) or empty space to the right of the last column.
+
+        NOTE:    This only works for report-style lists.
+
+        WARNING: If you override the EVT_SIZE event in your wx.ListCtrl, make
+                 sure you call event.Skip() to ensure that the mixin's
+                 _OnResize method is called.
+
+        This mix-in class was written by Erik Westra <ewestra@wave.co.nz>
+    """
+    def __init__(self):
+        """ Standard initialiser.
+        """
+        self._resizeColMinWidth = None
+        self._resizeColStyle = "LAST"
+        self._resizeCol = 0
+        self.Bind(wx.EVT_SIZE, self._onResize)
+        self.Bind(wx.EVT_LIST_COL_END_DRAG, self._onResize, self)
+
+
+    def setResizeColumn(self, col):
+        """
+        Specify which column that should be autosized.  Pass either
+        'LAST' or the column number.  Default is 'LAST'.
+        """
+        if col == "LAST":
+            self._resizeColStyle = "LAST"
+        else:
+            self._resizeColStyle = "COL"
+            self._resizeCol = col
+        
+
+    def resizeLastColumn(self, minWidth):
+        """ Resize the last column appropriately.
+
+            If the list's columns are too wide to fit within the window, we use
+            a horizontal scrollbar.  Otherwise, we expand the right-most column
+            to take up the remaining free space in the list.
+
+            This method is called automatically when the wx.ListCtrl is resized;
+            you can also call it yourself whenever you want the last column to
+            be resized appropriately (eg, when adding, removing or resizing
+            columns).
+
+            'minWidth' is the preferred minimum width for the last column.
+        """
+        self.resizeColumn(minWidth)
+
+
+    def resizeColumn(self, minWidth):
+        self._resizeColMinWidth = minWidth
+        self._doResize()
+        
+
+    # =====================
+    # == Private Methods ==
+    # =====================
+
+    def _onResize(self, event):
+        """ Respond to the wx.ListCtrl being resized.
+
+            We automatically resize the last column in the list.
+        """
+        if 'gtk2' in wx.PlatformInfo:
+            self._doResize()
+        else:
+            wx.CallAfter(self._doResize)
+        event.Skip()
+
+
+    def _doResize(self):
+        """ Resize the last column as appropriate.
+
+            If the list's columns are too wide to fit within the window, we use
+            a horizontal scrollbar.  Otherwise, we expand the right-most column
+            to take up the remaining free space in the list.
+
+            We remember the current size of the last column, before resizing,
+            as the preferred minimum width if we haven't previously been given
+            or calculated a minimum width.  This ensure that repeated calls to
+            _doResize() don't cause the last column to size itself too large.
+        """
+        
+        if not self:  # avoid a PyDeadObject error
+            return
+
+        if self.GetSize().height < 32:
+            return  # avoid an endless update bug when the height is small.
+        
+        numCols = self.GetColumnCount()
+        if numCols == 0: return # Nothing to resize.
+
+        if(self._resizeColStyle == "LAST"):
+            resizeCol = self.GetColumnCount()
+        else:
+            resizeCol = self._resizeCol
+
+        if self._resizeColMinWidth == None:
+            self._resizeColMinWidth = self.GetColumnWidth(resizeCol - 1)
+
+        # We're showing the vertical scrollbar -> allow for scrollbar width
+        # NOTE: on GTK, the scrollbar is included in the client size, but on
+        # Windows it is not included
+        listWidth = self.GetClientSize().width
+        if wx.Platform != '__WXMSW__':
+            if self.GetItemCount() > self.GetCountPerPage():
+                scrollWidth = wx.SystemSettings_GetMetric(wx.SYS_VSCROLL_X)
+                listWidth = listWidth - scrollWidth
+
+        totColWidth = 0 # Width of all columns except last one.
+        for col in range(numCols):
+            if col != (resizeCol-1):
+                totColWidth = totColWidth + self.GetColumnWidth(col)
+
+        resizeColWidth = self.GetColumnWidth(resizeCol - 1)
+
+        if totColWidth + self._resizeColMinWidth > listWidth:
+            # We haven't got the width to show the last column at its minimum
+            # width -> set it to its minimum width and allow the horizontal
+            # scrollbar to show.
+            self.SetColumnWidth(resizeCol-1, self._resizeColMinWidth)
+            return
+
+        # Resize the last column to take up the remaining available space.
+
+        self.SetColumnWidth(resizeCol-1, listWidth - totColWidth)
+
+
+
+
+#----------------------------------------------------------------------------
+#----------------------------------------------------------------------------
+
+SEL_FOC = wx.LIST_STATE_SELECTED | wx.LIST_STATE_FOCUSED
+def selectBeforePopup(event):
+    """Ensures the item the mouse is pointing at is selected before a popup.
+
+    Works with both single-select and multi-select lists."""
+    ctrl = event.GetEventObject()
+    if isinstance(ctrl, wx.ListCtrl):
+        n, flags = ctrl.HitTest(event.GetPosition())
+        if n >= 0:
+            if not ctrl.GetItemState(n, wx.LIST_STATE_SELECTED):
+                for i in range(ctrl.GetItemCount()):
+                    ctrl.SetItemState(i, 0, SEL_FOC)
+                #for i in getListCtrlSelection(ctrl, SEL_FOC):
+                #    ctrl.SetItemState(i, 0, SEL_FOC)
+                ctrl.SetItemState(n, SEL_FOC, SEL_FOC)
+
+
+def getListCtrlSelection(listctrl, state=wx.LIST_STATE_SELECTED):
+    """ Returns list of item indexes of given state (selected by defaults) """
+    res = []
+    idx = -1
+    while 1:
+        idx = listctrl.GetNextItem(idx, wx.LIST_NEXT_ALL, state)
+        if idx == -1:
+            break
+        res.append(idx)
+    return res
+
+wxEVT_DOPOPUPMENU = wx.NewEventType()
+EVT_DOPOPUPMENU = wx.PyEventBinder(wxEVT_DOPOPUPMENU, 0)
+
+
+class ListCtrlSelectionManagerMix:
+    """Mixin that defines a platform independent selection policy
+
+    As selection single and multi-select list return the item index or a
+    list of item indexes respectively.
+    """
+    _menu = None
+
+    def __init__(self):
+        self.Bind(wx.EVT_RIGHT_DOWN, self.OnLCSMRightDown)
+        self.Bind(EVT_DOPOPUPMENU, self.OnLCSMDoPopup)
+#        self.Connect(-1, -1, self.wxEVT_DOPOPUPMENU, self.OnLCSMDoPopup)
+
+
+    def getPopupMenu(self):
+        """ Override to implement dynamic menus (create) """
+        return self._menu
+
+
+    def setPopupMenu(self, menu):
+        """ Must be set for default behaviour """
+        self._menu = menu
+
+
+    def afterPopupMenu(self, menu):
+        """ Override to implement dynamic menus (destroy) """
+        pass
+
+
+    def getSelection(self):
+        res = getListCtrlSelection(self)
+        if self.GetWindowStyleFlag() & wx.LC_SINGLE_SEL:
+            if res:
+                return res[0]
+            else:
+                return -1
+        else:
+            return res
+
+
+    def OnLCSMRightDown(self, event):
+        selectBeforePopup(event)
+        event.Skip()
+        menu = self.getPopupMenu()
+        if menu:
+            evt = wx.PyEvent()
+            evt.SetEventType(wxEVT_DOPOPUPMENU)
+            evt.menu = menu
+            evt.pos = event.GetPosition()
+            wx.PostEvent(self, evt)
+
+
+    def OnLCSMDoPopup(self, event):
+        self.PopupMenu(event.menu, event.pos)
+        self.afterPopupMenu(event.menu)
+
+
+#----------------------------------------------------------------------------
+#----------------------------------------------------------------------------
+from bisect import bisect
+
+
+class TextEditMixin:
+    """    
+    A mixin class that enables any text in any column of a
+    multi-column listctrl to be edited by clicking on the given row
+    and column.  You close the text editor by hitting the ENTER key or
+    clicking somewhere else on the listctrl. You switch to the next
+    column by hiting TAB.
+
+    To use the mixin you have to include it in the class definition
+    and call the __init__ function::
+
+        class TestListCtrl(wx.ListCtrl, TextEditMixin):
+            def __init__(self, parent, ID, pos=wx.DefaultPosition,
+                         size=wx.DefaultSize, style=0):
+                wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
+                TextEditMixin.__init__(self) 
+
+
+    Authors:     Steve Zatz, Pim Van Heuven (pim@think-wize.com)
+    """
+
+    editorBgColour = wx.Colour(255,255,175) # Yellow
+    editorFgColour = wx.Colour(0,0,0)       # black
+        
+    def __init__(self):
+        #editor = wx.TextCtrl(self, -1, pos=(-1,-1), size=(-1,-1),
+        #                     style=wx.TE_PROCESS_ENTER|wx.TE_PROCESS_TAB \
+        #                     |wx.TE_RICH2)
+
+        self.make_editor()
+        self.Bind(wx.EVT_TEXT_ENTER, self.CloseEditor)
+        self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
+        self.Bind(wx.EVT_LEFT_DCLICK, self.OnLeftDown)
+        self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected)
+
+
+    def make_editor(self, col_style=wx.LIST_FORMAT_LEFT):
+        
+        style =wx.TE_PROCESS_ENTER|wx.TE_PROCESS_TAB|wx.TE_RICH2
+        style |= {wx.LIST_FORMAT_LEFT: wx.TE_LEFT,
+                  wx.LIST_FORMAT_RIGHT: wx.TE_RIGHT,
+                  wx.LIST_FORMAT_CENTRE : wx.TE_CENTRE
+                  }[col_style]
+        
+        editor = wx.TextCtrl(self, -1, style=style)
+        editor.SetBackgroundColour(self.editorBgColour)
+        editor.SetForegroundColour(self.editorFgColour)
+        font = self.GetFont()
+        editor.SetFont(font)
+
+        self.curRow = 0
+        self.curCol = 0
+
+        editor.Hide()
+        if hasattr(self, 'editor'):
+            self.editor.Destroy()
+        self.editor = editor
+
+        self.col_style = col_style
+        self.editor.Bind(wx.EVT_CHAR, self.OnChar)
+        self.editor.Bind(wx.EVT_KILL_FOCUS, self.CloseEditor)
+        
+        
+    def OnItemSelected(self, evt):
+        self.curRow = evt.GetIndex()
+        evt.Skip()
+        
+
+    def OnChar(self, event):
+        ''' Catch the TAB, Shift-TAB, cursor DOWN/UP key code
+            so we can open the editor at the next column (if any).'''
+
+        keycode = event.GetKeyCode()
+        if keycode == wx.WXK_TAB and event.ShiftDown():
+            self.CloseEditor()
+            if self.curCol-1 >= 0:
+                self.OpenEditor(self.curCol-1, self.curRow)
+            
+        elif keycode == wx.WXK_TAB:
+            self.CloseEditor()
+            if self.curCol+1 < self.GetColumnCount():
+                self.OpenEditor(self.curCol+1, self.curRow)
+
+        elif keycode == wx.WXK_ESCAPE:
+            self.CloseEditor()
+
+        elif keycode == wx.WXK_DOWN:
+            self.CloseEditor()
+            if self.curRow+1 < self.GetItemCount():
+                self._SelectIndex(self.curRow+1)
+                self.OpenEditor(self.curCol, self.curRow)
+
+        elif keycode == wx.WXK_UP:
+            self.CloseEditor()
+            if self.curRow > 0:
+                self._SelectIndex(self.curRow-1)
+                self.OpenEditor(self.curCol, self.curRow)
+            
+        else:
+            event.Skip()
+
+    
+    def OnLeftDown(self, evt=None):
+        ''' Examine the click and double
+        click events to see if a row has been click on twice. If so,
+        determine the current row and columnn and open the editor.'''
+        
+        if self.editor.IsShown():
+            self.CloseEditor()
+            
+        x,y = evt.GetPosition()
+        row,flags = self.HitTest((x,y))
+    
+        if row != self.curRow: # self.curRow keeps track of the current row
+            evt.Skip()
+            return
+        
+        # the following should really be done in the mixin's init but
+        # the wx.ListCtrl demo creates the columns after creating the
+        # ListCtrl (generally not a good idea) on the other hand,
+        # doing this here handles adjustable column widths
+        
+        self.col_locs = [0]
+        loc = 0
+        for n in range(self.GetColumnCount()):
+            loc = loc + self.GetColumnWidth(n)
+            self.col_locs.append(loc)
+
+        
+        col = bisect(self.col_locs, x+self.GetScrollPos(wx.HORIZONTAL)) - 1
+        self.OpenEditor(col, row)
+
+
+    def OpenEditor(self, col, row):
+        ''' Opens an editor at the current position. '''
+
+        # give the derived class a chance to Allow/Veto this edit.
+        evt = wx.ListEvent(wx.wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT, self.GetId())
+        evt.m_itemIndex = row
+        evt.m_col = col
+        item = self.GetItem(row, col)
+        evt.m_item.SetId(item.GetId()) 
+        evt.m_item.SetColumn(item.GetColumn()) 
+        evt.m_item.SetData(item.GetData()) 
+        evt.m_item.SetText(item.GetText()) 
+        ret = self.GetEventHandler().ProcessEvent(evt)
+        if ret and not evt.IsAllowed():
+            return   # user code doesn't allow the edit.
+
+        if self.GetColumn(col).m_format != self.col_style:
+            self.make_editor(self.GetColumn(col).m_format)
+    
+        x0 = self.col_locs[col]
+        x1 = self.col_locs[col+1] - x0
+
+        scrolloffset = self.GetScrollPos(wx.HORIZONTAL)
+
+        # scroll forward
+        if x0+x1-scrolloffset > self.GetSize()[0]:
+            if wx.Platform == "__WXMSW__":
+                # don't start scrolling unless we really need to
+                offset = x0+x1-self.GetSize()[0]-scrolloffset
+                # scroll a bit more than what is minimum required
+                # so we don't have to scroll everytime the user presses TAB
+                # which is very tireing to the eye
+                addoffset = self.GetSize()[0]/4
+                # but be careful at the end of the list
+                if addoffset + scrolloffset < self.GetSize()[0]:
+                    offset += addoffset
+
+                self.ScrollList(offset, 0)
+                scrolloffset = self.GetScrollPos(wx.HORIZONTAL)
+            else:
+                # Since we can not programmatically scroll the ListCtrl
+                # close the editor so the user can scroll and open the editor
+                # again
+                self.editor.SetValue(self.GetItem(row, col).GetText())
+                self.curRow = row
+                self.curCol = col
+                self.CloseEditor()
+                return
+
+        y0 = self.GetItemRect(row)[1]
+        
+        editor = self.editor
+        editor.SetDimensions(x0-scrolloffset,y0, x1,-1)
+        
+        editor.SetValue(self.GetItem(row, col).GetText()) 
+        editor.Show()
+        editor.Raise()
+        editor.SetSelection(-1,-1)
+        editor.SetFocus()
+    
+        self.curRow = row
+        self.curCol = col
+
+    
+    # FIXME: this function is usually called twice - second time because
+    # it is binded to wx.EVT_KILL_FOCUS. Can it be avoided? (MW)
+    def CloseEditor(self, evt=None):
+        ''' Close the editor and save the new value to the ListCtrl. '''
+        if not self.editor.IsShown():
+            return
+        text = self.editor.GetValue()
+        self.editor.Hide()
+        self.SetFocus()
+        
+        # post wxEVT_COMMAND_LIST_END_LABEL_EDIT
+        # Event can be vetoed. It doesn't has SetEditCanceled(), what would 
+        # require passing extra argument to CloseEditor() 
+        evt = wx.ListEvent(wx.wxEVT_COMMAND_LIST_END_LABEL_EDIT, self.GetId())
+        evt.m_itemIndex = self.curRow
+        evt.m_col = self.curCol
+        item = self.GetItem(self.curRow, self.curCol)
+        evt.m_item.SetId(item.GetId()) 
+        evt.m_item.SetColumn(item.GetColumn()) 
+        evt.m_item.SetData(item.GetData()) 
+        evt.m_item.SetText(text) #should be empty string if editor was canceled
+        ret = self.GetEventHandler().ProcessEvent(evt)
+        if not ret or evt.IsAllowed():
+            if self.IsVirtual():
+                # replace by whather you use to populate the virtual ListCtrl
+                # data source
+                self.SetVirtualData(self.curRow, self.curCol, text)
+            else:
+                self.SetStringItem(self.curRow, self.curCol, text)
+        self.RefreshItem(self.curRow)
+
+    def _SelectIndex(self, row):
+        listlen = self.GetItemCount()
+        if row < 0 and not listlen:
+            return
+        if row > (listlen-1):
+            row = listlen -1
+            
+        self.SetItemState(self.curRow, ~wx.LIST_STATE_SELECTED,
+                          wx.LIST_STATE_SELECTED)
+        self.EnsureVisible(row)
+        self.SetItemState(row, wx.LIST_STATE_SELECTED,
+                          wx.LIST_STATE_SELECTED)
+
+
+
+#----------------------------------------------------------------------------
+#----------------------------------------------------------------------------
+
+"""
+FILENAME: CheckListCtrlMixin.py
+AUTHOR:   Bruce Who (bruce.who.hk at gmail.com)
+DATE:     2006-02-09
+$Revision$
+DESCRIPTION:
+    This script provide a mixin for ListCtrl which add a checkbox in the first
+    column of each row. It is inspired by limodou's CheckList.py(which can be
+    got from his NewEdit) and improved:
+        - You can just use InsertStringItem() to insert new items;
+        - Once a checkbox is checked/unchecked, the corresponding item is not
+          selected;
+        - You can use SetItemData() and GetItemData();
+        - Interfaces are changed to OnCheckItem(), IsChecked(), CheckItem().
+
+    You should not set a imagelist for the ListCtrl once this mixin is used.
+
+HISTORY:
+1.3     - You can check/uncheck a group of sequential items by <Shift-click>:
+          First click(or <Shift-Click>) item1 to check/uncheck it, then
+          Shift-click item2 to check/uncheck it, and you'll find that all
+          items between item1 and item2 are check/unchecked!
+1.2     - Add ToggleItem()
+1.1     - Initial version
+"""
+
+from wx import ImageFromStream, BitmapFromImage
+import cStringIO, zlib
+
+def getUncheckData():
+    return zlib.decompress(
+"x\xda\xeb\x0c\xf0s\xe7\xe5\x92\xe2b``\xe0\xf5\xf4p\t\x02\xd2\x02 \xcc\xc1\
+\x06$\xe5?\xffO\x04R,\xc5N\x9e!\x1c@P\xc3\x91\xd2\x01\xe4\xbb{\xba8\x86X\xf4\
+&\xa7\xa4$\xa5-`1\x08\\2\xbb\xb1\xb1\x91\xf5\xd8\x84o\xeb\xff\xfaw\x1d[.=[2\
+\x90'\x01\x08v\xec]\xd3\xa3qvU`l\x81\xd9\xd18\t\xd3\x84+\x0cll[\xa6t\xcc9\
+\xd4\xc1\xda\xc3<O\x9a1\xc3\x88\xc3j\xfa\x86_\xee@#\x19<]\xfd\\\xd69%4\x01\
+\x00\xdc\x80-\x05" )
+
+def getUncheckBitmap():
+    return BitmapFromImage(getUncheckImage())
+
+def getUncheckImage():
+    stream = cStringIO.StringIO(getUncheckData())
+    return ImageFromStream(stream)
+
+def getCheckData():
+    return zlib.decompress(
+'x\xda\xeb\x0c\xf0s\xe7\xe5\x92\xe2b``\xe0\xf5\xf4p\t\x02\xd2\x02 \xcc\xc1\
+\x06$\xe5?\xffO\x04R,\xc5N\x9e!\x1c@P\xc3\x91\xd2\x01\xe47{\xba8\x86X\xf4&\
+\xa7\xa4$\xa5-`1\x08\\2\xbb\xb1\xb1\x91\xf5\xd8\x84o\xeb\xff\xfaw\x1d[.=[2\
+\x90\'\x01\x08v\xec\\2C\xe3\xec+\xc3\xbd\x05fG\xe3\x14n1\xcc5\xad\x8a8\x1a\
+\xb9\xa1\xeb\xd1\x853-\xaa\xc76\xecb\xb8i\x16c&\\\xc2\xb8\xe9Xvbx\xa1T\xc3U\
+\xd6p\'\xbd\x85\x19\xff\xbe\xbf\xd7\xe7R\xcb`\xd8\xa5\xf8\x83\xe1^\xc4\x0e\
+\xa1"\xce\xc3n\x93x\x14\xd8\x16\xb0(\x15q)\x8b\x19\xf0U\xe4\xb10\x08V\xa8\
+\x99\xf3\xdd\xde\xad\x06t\x0e\x83\xa7\xab\x9f\xcb:\xa7\x84&\x00\xe0HE\xab' )
+
+def getCheckBitmap():
+    return BitmapFromImage(getCheckImage())
+
+def getCheckImage():
+    stream = cStringIO.StringIO(getCheckData())
+    return ImageFromStream(stream)
+
+
+
+class CheckListCtrlMixin:
+    """
+    This is a mixin for ListCtrl which add a checkbox in the first
+    column of each row. It is inspired by limodou's CheckList.py(which
+    can be got from his NewEdit) and improved:
+    
+        - You can just use InsertStringItem() to insert new items;
+
+        - Once a checkbox is checked/unchecked, the corresponding item
+          is not selected;
+
+        - You can use SetItemData() and GetItemData();
+
+        - Interfaces are changed to OnCheckItem(), IsChecked(),
+          CheckItem().
+
+    You should not set a imagelist for the ListCtrl once this mixin is used.
+    """
+    def __init__(self, check_image=None, uncheck_image=None):
+        self.__imagelist_ = wx.ImageList(16, 16)
+        if not check_image:
+            check_image = getCheckBitmap()
+        if not uncheck_image:
+            uncheck_image = getUncheckBitmap()
+        self.uncheck_image = self.__imagelist_.Add(uncheck_image)
+        self.check_image = self.__imagelist_.Add(check_image)
+        self.SetImageList(self.__imagelist_, wx.IMAGE_LIST_SMALL)
+        self.__last_check_ = None
+
+        self.Bind(wx.EVT_LEFT_DOWN, self.__OnLeftDown_)
+        
+        # override the default methods of ListCtrl/ListView
+        self.InsertStringItem = self.__InsertStringItem_
+
+    # NOTE: if you use InsertItem, InsertImageItem or InsertImageStringItem,
+    #       you must set the image yourself.
+    def __InsertStringItem_(self, index, label):
+        index = self.InsertImageStringItem(index, label, 0)
+        return index
+
+    def __OnLeftDown_(self, evt):
+        (index, flags) = self.HitTest(evt.GetPosition())
+        if flags == wx.LIST_HITTEST_ONITEMICON:
+            img_idx = self.GetItem(index).GetImage()
+            flag_check = img_idx == 0
+            begin_index = index
+            end_index = index
+            if self.__last_check_ is not None \
+                    and wx.GetKeyState(wx.WXK_SHIFT):
+                last_index, last_flag_check = self.__last_check_
+                if last_flag_check == flag_check:
+                    # XXX what if the previous item is deleted or new items
+                    # are inserted?
+                    item_count = self.GetItemCount()
+                    if last_index < item_count:
+                        if last_index < index:
+                            begin_index = last_index
+                            end_index = index
+                        elif last_index > index:
+                            begin_index = index
+                            end_index = last_index
+                        else:
+                            assert False
+            while begin_index <= end_index:
+                self.CheckItem(begin_index, flag_check)
+                begin_index += 1
+            self.__last_check_ = (index, flag_check)
+        else:
+            evt.Skip()
+
+    def OnCheckItem(self, index, flag):
+        pass
+
+    def IsChecked(self, index):
+        return self.GetItem(index).GetImage() == 1
+
+    def CheckItem(self, index, check = True):
+        img_idx = self.GetItem(index).GetImage()
+        if img_idx == 0 and check is True:
+            self.SetItemImage(index, 1)
+            self.OnCheckItem(index, True)
+        elif img_idx == 1 and check is False:
+            self.SetItemImage(index, 0)
+            self.OnCheckItem(index, False)
+
+    def ToggleItem(self, index):
+        self.CheckItem(index, not self.IsChecked(index))
+
+
+#----------------------------------------------------------------------------