QtSpell 1.0.2
Spell checking for Qt text widgets
UndoRedoStack.hpp
1/* QtSpell - Spell checking for Qt text widgets.
2 * Copyright (c) 2014-2022 Sandro Mani
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19#ifndef QTSPELL_UNDOREDOSTACK_HPP
20#define QTSPELL_UNDOREDOSTACK_HPP
21
22#include <QObject>
23#include <QStack>
24
25
26namespace QtSpell {
27
28class TextEditProxy;
29
30class UndoRedoStack : public QObject
31{
32 Q_OBJECT
33public:
34 UndoRedoStack(TextEditProxy* textEdit);
35 void handleContentsChange(int pos, int removed, int added);
36 void clear();
37
38public slots:
39 void undo();
40 void redo();
41
42signals:
43 void undoAvailable(bool);
44 void redoAvailable(bool);
45
46private:
47 struct Action;
48 struct UndoableInsert;
49 struct UndoableDelete;
50
51 bool m_actionInProgress = false;
52 TextEditProxy* m_textEdit = nullptr;
53 QStack<Action*> m_undoStack;
54 QStack<Action*> m_redoStack;
55
56 bool insertMergeable(const UndoableInsert* prev, const UndoableInsert* cur) const;
57 bool deleteMergeable(const UndoableDelete* prev, const UndoableDelete* cur) const;
58};
59
60} // QtSpell
61
62#endif // QTSPELL_UNDOREDOSTACK_HPP
QtSpell namespace.
Definition Checker.cpp:77