/usr/include/libview/undoableTextView.hh is in libview-dev 0.6.6-2.1ubuntu1.
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* Copyright (c) 2005 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* *************************************************************************/
/*
* undoableTextView.hh --
*
* Implement custom widget to support Undo/Redo for TextViews.
*/
#ifndef VIEW_UNDOABLE_TEXT_VIEW_HH
#define VIEW_UNDOABLE_TEXT_VIEW_HH
#include <stack>
#include <gtkmm/textbuffer.h>
#include <gtkmm/textview.h>
namespace view {
class EditAction;
class UndoableTextView
: public Gtk::TextView
{
public:
UndoableTextView(const Glib::RefPtr<Gtk::TextBuffer> &buffer =
Gtk::TextBuffer::create());
virtual ~UndoableTextView(void);
bool GetCanUndo(void);
bool GetCanRedo(void);
sigc::signal<void> undoChangedSignal;
void Undo(void);
void Redo(void);
void ClearUndoHistory(void);
private:
void OnInsert(const Gtk::TextBuffer::iterator &start,
const Glib::ustring &text,
int length);
void OnErase(const Gtk::TextBuffer::iterator &start,
const Gtk::TextBuffer::iterator &end);
void OnPopulatePopup(Gtk::Menu *menu);
bool OnKeyPressEvent(GdkEventKey *event);
typedef std::stack<EditAction *> ActionStack;
ActionStack mUndoStack;
ActionStack mRedoStack;
void UndoRedo(ActionStack &popFrom, ActionStack &pushTo, bool isUndo);
void AddUndoAction(EditAction *action);
void ResetStack(ActionStack &stack);
unsigned int mFrozenCnt;
bool mTryMerge;
Glib::RefPtr<Gtk::AccelGroup> mAccelGroup;
};
} // namespace view
#endif // VIEW_UNDOABLE_TEXT_VIEW_HH
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