#endif
#if !USE_SHARED_LIBRARY
+
IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
EVT_CHAR(wxTextCtrl::OnChar)
EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
- EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
+
+ EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
+ EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
+ EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
+ EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
+ EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
+
+ EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
+ EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
+ EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
+ EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
+ EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
END_EVENT_TABLE()
+
#endif // USE_SHARED_LIBRARY
// Text item
const wxValidator& validator,
const wxString& name)
{
- m_fileName = "";
SetName(name);
SetValidator(validator);
if (parent) parent->AddChild(this);
{
wxWindow::AdoptAttributesFromHWND();
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
long style = GetWindowLong((HWND) hWnd, GWL_STYLE);
// retrieve the style to see whether this is an edit or richedit ctrl
wxString wxTextCtrl::GetValue() const
{
- int length = GetWindowTextLength((HWND) GetHWND());
- char *s = new char[length+1];
- GetWindowText((HWND) GetHWND(), s, length+1);
- wxString str(s);
- delete[] s;
- return str;
+ return wxGetWindowText(GetHWND());
}
void wxTextCtrl::SetValue(const wxString& value)
j ++;
}
tmp[j] = 0;
- SetWindowText((HWND) GetHWND(), tmp);
+ SetWindowText(GetHwnd(), tmp);
delete[] tmp;
}
else
- SetWindowText((HWND) GetHWND(), (const char *)value);
+ SetWindowText(GetHwnd(), (const char *)value);
+
+ AdjustSpaceLimit();
}
-void wxTextCtrl::SetSize(int x, int y, int width, int height, int sizeFlags)
+void wxTextCtrl::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
int currentX, currentY;
GetPosition(¤tX, ¤tY);
if (control_width <= 0)
control_width = DEFAULT_ITEM_WIDTH;
- MoveWindow((HWND) GetHWND(), (int)control_x, (int)control_y,
+ MoveWindow(GetHwnd(), (int)control_x, (int)control_y,
(int)control_width, (int)control_height, TRUE);
}
// Clipboard operations
void wxTextCtrl::Copy()
{
- HWND hWnd = (HWND) GetHWND();
- SendMessage(hWnd, WM_COPY, 0, 0L);
+ if (CanCopy())
+ {
+ HWND hWnd = GetHwnd();
+ SendMessage(hWnd, WM_COPY, 0, 0L);
+ }
}
void wxTextCtrl::Cut()
{
- HWND hWnd = (HWND) GetHWND();
- SendMessage(hWnd, WM_CUT, 0, 0L);
+ if (CanCut())
+ {
+ HWND hWnd = GetHwnd();
+ SendMessage(hWnd, WM_CUT, 0, 0L);
+ }
}
void wxTextCtrl::Paste()
{
- HWND hWnd = (HWND) GetHWND();
- SendMessage(hWnd, WM_PASTE, 0, 0L);
+ if (CanPaste())
+ {
+ HWND hWnd = GetHwnd();
+ SendMessage(hWnd, WM_PASTE, 0, 0L);
+ }
}
void wxTextCtrl::SetEditable(bool editable)
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
}
void wxTextCtrl::SetInsertionPoint(long pos)
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
#ifdef __WIN32__
#if wxUSE_RICHEDIT
if ( m_isRich)
CHARRANGE range;
range.cpMin = 0;
range.cpMax = 0;
- SendMessage((HWND) GetHWND(), EM_EXGETSEL, 0, (LPARAM) &range);
+ SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
return range.cpMin;
}
#endif
- DWORD Pos=(DWORD)SendMessage((HWND) GetHWND(), EM_GETSEL, 0, 0L);
+ DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
return Pos&0xFFFF;
}
long wxTextCtrl::GetLastPosition() const
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
// Will always return a number > 0 (according to docs)
int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
// This gets the char index for the _beginning_ of the last line
int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
-
+
// Get number of characters in the last line. We'll add this to the character
// index for the last line, 1st position.
int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
void wxTextCtrl::Replace(long from, long to, const wxString& value)
{
- HWND hWnd = (HWND) GetHWND();
+#if wxUSE_CLIPBOARD
+ HWND hWnd = GetHwnd();
long fromChar = from;
long toChar = to;
-
+
// Set selection and remove it
#ifdef __WIN32__
SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
// Paste into edit control
SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
+#else
+ wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0.");
+#endif
}
void wxTextCtrl::Remove(long from, long to)
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
long fromChar = from;
long toChar = to;
-
+
// Cut all selected text
#ifdef __WIN32__
SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
void wxTextCtrl::SetSelection(long from, long to)
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
long fromChar = from;
long toChar = to;
// if from and to are both -1, it means
fromChar = 0;
toChar = -1;
}
-
+
#ifdef __WIN32__
SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar);
SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
no_lines++;
}
-// SendMessage((HWND) GetHWND(), WM_SETTEXT, 0, (LPARAM)tmp_buffer);
- SetWindowText((HWND) GetHWND(), tmp_buffer);
- SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L);
+ SetWindowText(GetHwnd(), tmp_buffer);
+ SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
farfree(tmp_buffer);
+ // update the size limit if needed
+ AdjustSpaceLimit();
+
return TRUE;
}
return FALSE;
return FALSE;
// This will only save 64K max
- unsigned long nbytes = SendMessage((HWND) GetHWND(), WM_GETTEXTLENGTH, 0, 0);
+ unsigned long nbytes = SendMessage(GetHwnd(), WM_GETTEXTLENGTH, 0, 0);
char *tmp_buffer = (char*)farmalloc((size_t)(nbytes+1));
- SendMessage((HWND) GetHWND(), WM_GETTEXT, (WPARAM)(nbytes+1), (LPARAM)tmp_buffer);
+ SendMessage(GetHwnd(), WM_GETTEXT, (WPARAM)(nbytes+1), (LPARAM)tmp_buffer);
char *pstr = tmp_buffer;
// Convert \r\n to just \n
}
farfree(tmp_buffer);
- SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L);
+ SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
return TRUE;
}
j ++;
}
newtext[j] = 0;
- SendMessage((HWND) GetHWND(), EM_REPLACESEL, 0, (LPARAM)newtext);
+ SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)newtext);
delete[] newtext;
+
+ AdjustSpaceLimit();
}
void wxTextCtrl::AppendText(const wxString& text)
void wxTextCtrl::Clear()
{
- SetWindowText((HWND) GetHWND(), "");
+ SetWindowText(GetHwnd(), "");
}
bool wxTextCtrl::IsModified() const
{
- return (SendMessage((HWND) GetHWND(), EM_GETMODIFY, 0, 0) != 0);
+ return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0);
}
// Makes 'unmodified'
void wxTextCtrl::DiscardEdits()
{
- SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L);
+ SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
}
/*
* Some of the following functions are yet to be implemented
*
*/
-
+
int wxTextCtrl::GetNumberOfLines() const
{
- return (int)SendMessage((HWND) GetHWND(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
+ return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
}
long wxTextCtrl::XYToPosition(long x, long y) const
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
// This gets the char index for the _beginning_ of this line
int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
// This gets the line number containing the character
int lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0);
void wxTextCtrl::ShowPosition(long pos)
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
// To scroll to a position, we pass the number of lines and characters
// to scroll *by*. This means that we need to:
int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);
-
- int linesToScroll = specifiedLineLineNo - currentLineLineNo;
-/*
- wxDebugMsg("Caret line: %d; Current visible line: %d; Specified line: %d; lines to scroll: %d\n",
- currentLineLineNo1, currentLineLineNo, specifiedLineLineNo, linesToScroll);
-*/
+ int linesToScroll = specifiedLineLineNo - currentLineLineNo;
if (linesToScroll != 0)
- (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)MAKELPARAM(linesToScroll, 0));
+ (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
}
int wxTextCtrl::GetLineLength(long lineNo) const
{
long charIndex = XYToPosition(0, lineNo);
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
int len = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0);
return len;
}
wxString wxTextCtrl::GetLineText(long lineNo) const
{
- HWND hWnd = (HWND) GetHWND();
+ HWND hWnd = GetHwnd();
*(WORD *)wxBuffer = 512;
int noChars = (int)SendMessage(hWnd, EM_GETLINE, (WPARAM)lineNo, (LPARAM)wxBuffer);
wxBuffer[noChars] = 0;
return wxString(wxBuffer);
}
-/*
- * Text item
- */
-
+bool wxTextCtrl::CanCopy() const
+{
+ // Can copy if there's a selection
+ long from, to;
+ GetSelection(& from, & to);
+ return (from != to) ;
+}
+
+bool wxTextCtrl::CanCut() const
+{
+ // Can cut if there's a selection
+ long from, to;
+ GetSelection(& from, & to);
+ return (from != to) ;
+}
+
+bool wxTextCtrl::CanPaste() const
+{
+#if wxUSE_RICHEDIT
+ if (m_isRich)
+ {
+ int dataFormat = 0; // 0 == any format
+ return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0);
+ }
+#endif
+ if (!IsEditable())
+ return FALSE;
+
+ // Standard edit control: check for straight text on clipboard
+ bool isTextAvailable = FALSE;
+ if (::OpenClipboard((HWND) wxTheApp->GetTopWindow()->GetHWND()))
+ {
+ isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0);
+ ::CloseClipboard();
+ }
+ return isTextAvailable;
+}
+
+// Undo/redo
+void wxTextCtrl::Undo()
+{
+ if (CanUndo())
+ {
+ ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
+ }
+}
+
+void wxTextCtrl::Redo()
+{
+ if (CanRedo())
+ {
+ // Same as Undo, since Undo undoes the undo, i.e. a redo.
+ ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
+ }
+}
+
+bool wxTextCtrl::CanUndo() const
+{
+ return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
+}
+
+bool wxTextCtrl::CanRedo() const
+{
+ return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
+}
+
+// If the return values from and to are the same, there is no
+// selection.
+void wxTextCtrl::GetSelection(long* from, long* to) const
+{
+#if wxUSE_RICHEDIT
+ if (m_isRich)
+ {
+ CHARRANGE charRange;
+ ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange);
+
+ *from = charRange.cpMin;
+ *to = charRange.cpMax;
+
+ return;
+ }
+#endif
+ DWORD dwStart, dwEnd;
+ WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position
+ LPARAM lParam = (LPARAM) (DWORD*) & dwEnd; // receives ending position
+
+ ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam);
+
+ *from = dwStart;
+ *to = dwEnd;
+}
+
+bool wxTextCtrl::IsEditable() const
+{
+ long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
+
+ return ((style & ES_READONLY) == 0);
+}
+
void wxTextCtrl::Command(wxCommandEvent & event)
{
SetValue (event.GetString());
// AT&T's "C++ Lanuage System Release 3.0 Library Manual" - Stein Somers
//=========================================================================
-// Called then the buffer is full (gcc 2.6.3)
+// Called then the buffer is full (gcc 2.6.3)
// or when "endl" is output (Borland 4.5)
//=========================================================================
// Class declaration using multiple inheritance doesn't work properly for
return EOF;
}
#endif
-
+
// Verify that there are no characters in get area
if ( gptr() && gptr() < egptr() )
{
void wxTextCtrl::OnChar(wxKeyEvent& event)
{
- switch( event.KeyCode() )
+ switch ( event.KeyCode() )
{
- // Fix by Marcel Rasche to allow Alt-Ctrl insertion of special characters
- case '{':
- case '}':
- case '[':
- case ']':
- case '|':
- case '~':
- case '\\':
- {
- char c = (char)event.KeyCode();
- *this << c;
- }
- break;
-
case WXK_RETURN:
- wxASSERT_MSG( m_windowStyle & wxTE_PROCESS_ENTER,
- "this text ctrl should never receive return" );
- if ( m_windowStyle & wxTE_MULTILINE == 0 )
+ if ( !(m_windowStyle & wxTE_MULTILINE) )
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
event.SetEventObject( this );
eventNav.SetDirection(!event.ShiftDown());
eventNav.SetWindowChange(FALSE);
eventNav.SetEventObject(this);
-
+
if ( GetEventHandler()->ProcessEvent(eventNav) )
return;
}
+ break;
+
+ default:
+ event.Skip();
+ return;
}
-
+
// don't just call event.Skip() because this will cause TABs and ENTERs
// be passed upwards and we don't always want this - instead process it
// right here
- Default();
+
+ // FIXME
+ event.Skip();
}
long wxTextCtrl::MSWGetDlgCode()
lRc |= DLGC_WANTMESSAGE;
if ( m_windowStyle & wxTE_PROCESS_TAB )
lRc |= DLGC_WANTTAB;
-
+
return lRc;
}
-void wxTextCtrl::OnEraseBackground(wxEraseEvent& event)
+bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
- if ( m_windowStyle & wxTE_MULTILINE )
+ switch (param)
{
- // No flicker - only problem is we probably can't change the background
- Default();
-/*
- RECT rect;
- ::GetClientRect((HWND) GetHWND(), &rect);
+ case EN_SETFOCUS:
+ case EN_KILLFOCUS:
+ {
+ wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
+ : wxEVT_SET_FOCUS,
+ m_windowId);
+ event.SetEventObject( this );
+ GetEventHandler()->ProcessEvent(event);
+ }
+ break;
+
+ case EN_CHANGE:
+ {
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
+ wxString val(GetValue());
+ if ( !val.IsNull() )
+ event.m_commandString = WXSTRINGCAST val;
+ event.SetEventObject( this );
+ ProcessCommand(event);
+ }
+ break;
- HBRUSH hBrush = ::CreateSolidBrush(PALETTERGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
- int mode = ::SetMapMode((HDC) event.GetDC()->GetHDC(), MM_TEXT);
+ case EN_ERRSPACE:
+ // the text size limit has been hit - increase it
+ AdjustSpaceLimit();
+ break;
- ::FillRect ((HDC) event.GetDC()->GetHDC(), &rect, hBrush);
- ::DeleteObject(hBrush);
- ::SetMapMode((HDC) event.GetDC()->GetHDC(), mode);
-*/
+ // the other notification messages are not processed
+ case EN_UPDATE:
+ case EN_MAXTEXT:
+ case EN_HSCROLL:
+ case EN_VSCROLL:
+ default:
+ return FALSE;
}
-// wxWindow::OnEraseBackground(event);
+
+ // processed
+ return TRUE;
}
-bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+void wxTextCtrl::AdjustSpaceLimit()
{
-/*
- // Debugging
- wxDebugMsg("Edit control %d: ", (int)id);
- switch (param)
- {
- case EN_SETFOCUS:
- wxDebugMsg("EN_SETFOCUS\n");
- break;
- case EN_KILLFOCUS:
- wxDebugMsg("EN_KILLFOCUS\n");
- break;
- case EN_CHANGE:
- wxDebugMsg("EN_CHANGE\n");
- break;
- case EN_UPDATE:
- wxDebugMsg("EN_UPDATE\n");
- break;
- case EN_ERRSPACE:
- wxDebugMsg("EN_ERRSPACE\n");
- break;
- case EN_MAXTEXT:
- wxDebugMsg("EN_MAXTEXT\n");
- break;
- case EN_HSCROLL:
- wxDebugMsg("EN_HSCROLL\n");
- break;
- case EN_VSCROLL:
- wxDebugMsg("EN_VSCROLL\n");
- break;
- default:
- wxDebugMsg("Unknown EDIT notification\n");
- break;
- }
-*/
- switch (param)
- {
- case EN_SETFOCUS:
- case EN_KILLFOCUS:
- {
- wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
- : wxEVT_SET_FOCUS,
- m_windowId);
- event.SetEventObject( this );
- GetEventHandler()->ProcessEvent(event);
- }
- break;
-
- case EN_CHANGE:
- {
- wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
- wxString val(GetValue());
- if ( !val.IsNull() )
- event.m_commandString = WXSTRINGCAST val;
- event.SetEventObject( this );
- ProcessCommand(event);
- }
- break;
-
- // the other notification messages are not processed
- case EN_UPDATE:
- case EN_ERRSPACE:
- case EN_MAXTEXT:
- case EN_HSCROLL:
- case EN_VSCROLL:
- default:
- return FALSE;
- }
+ unsigned int len = ::GetWindowTextLength(GetHwnd()),
+ limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
+ if ( len > limit )
+ {
+ limit = len + 0x8000; // 32Kb
- // processed
- return TRUE;
+ if ( m_isRich || limit > 0xffff )
+ ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit);
+ else
+ ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
+ }
}
-
// For Rich Edit controls. Do we need it?
#if 0
#if wxUSE_RICHEDIT
-bool wxTextCtrl::MSWNotify(WXWPARAM wParam, WXLPARAM lParam)
+bool wxTextCtrl::MSWOnNotify(WXWPARAM wParam, WXLPARAM lParam)
{
wxCommandEvent event(0, m_windowId);
int eventType = 0;
{
// Insert case code here
default :
- return wxControl::MSWNotify(wParam, lParam);
+ return wxControl::MSWOnNotify(wParam, lParam);
break;
}
#endif
#endif
+void wxTextCtrl::OnCut(wxCommandEvent& event)
+{
+ Cut();
+}
+
+void wxTextCtrl::OnCopy(wxCommandEvent& event)
+{
+ Copy();
+}
+
+void wxTextCtrl::OnPaste(wxCommandEvent& event)
+{
+ Paste();
+}
+
+void wxTextCtrl::OnUndo(wxCommandEvent& event)
+{
+ Undo();
+}
+
+void wxTextCtrl::OnRedo(wxCommandEvent& event)
+{
+ Redo();
+}
+
+void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
+{
+ event.Enable( CanCut() );
+}
+
+void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+ event.Enable( CanCopy() );
+}
+
+void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+ event.Enable( CanPaste() );
+}
+
+void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+ event.Enable( CanUndo() );
+}
+
+void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+ event.Enable( CanRedo() );
+}
+