/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Qt Software Information (qt-info@nokia.com) ** ** This file is part of the test suite of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at qt-sales@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ #include #include #include //TESTED_CLASS= //TESTED_FILES= /****************************************************************************** ** Commands */ class InsertCommand : public QUndoCommand { public: InsertCommand(QString *str, int idx, const QString &text, QUndoCommand *parent = 0); virtual void undo(); virtual void redo(); private: QString *m_str; int m_idx; QString m_text; }; class RemoveCommand : public QUndoCommand { public: RemoveCommand(QString *str, int idx, int len, QUndoCommand *parent = 0); virtual void undo(); virtual void redo(); private: QString *m_str; int m_idx; QString m_text; }; class AppendCommand : public QUndoCommand { public: AppendCommand(QString *str, const QString &text, bool _fail_merge = false, QUndoCommand *parent = 0); ~AppendCommand(); virtual void undo(); virtual void redo(); virtual int id() const; virtual bool mergeWith(const QUndoCommand *other); bool merged; bool fail_merge; static int delete_cnt; private: QString *m_str; QString m_text; }; InsertCommand::InsertCommand(QString *str, int idx, const QString &text, QUndoCommand *parent) : QUndoCommand(parent) { QVERIFY(str->length() >= idx); setText("insert"); m_str = str; m_idx = idx; m_text = text; } void InsertCommand::redo() { QVERIFY(m_str->length() >= m_idx); m_str->insert(m_idx, m_text); } void InsertCommand::undo() { QCOMPARE(m_str->mid(m_idx, m_text.length()), m_text); m_str->remove(m_idx, m_text.length()); } RemoveCommand::RemoveCommand(QString *str, int idx, int len, QUndoCommand *parent) : QUndoCommand(parent) { QVERIFY(str->length() >= idx + len); setText("remove"); m_str = str; m_idx = idx; m_text = m_str->mid(m_idx, len); } void RemoveCommand::redo() { QCOMPARE(m_str->mid(m_idx, m_text.length()), m_text); m_str->remove(m_idx, m_text.length()); } void RemoveCommand::undo() { QVERIFY(m_str->length() >= m_idx); m_str->insert(m_idx, m_text); } int AppendCommand::delete_cnt = 0; AppendCommand::AppendCommand(QString *str, const QString &text, bool _fail_merge, QUndoCommand *parent) : QUndoCommand(parent) { setText("append"); m_str = str; m_text = text; merged = false; fail_merge = _fail_merge; } AppendCommand::~AppendCommand() { ++delete_cnt; } void AppendCommand::redo() { m_str->append(m_text); } void AppendCommand::undo() { QCOMPARE(m_str->mid(m_str->length() - m_text.length()), m_text); m_str->truncate(m_str->length() - m_text.length()); } int AppendCommand::id() const { return 1; } bool AppendCommand::mergeWith(const QUndoCommand *other) { if (other->id() != id()) return false; if (fail_merge) return false; m_text += static_cast(other)->m_text; merged = true; return true; } /****************************************************************************** ** tst_QUndoStack */ class tst_QUndoStack : public QObject { Q_OBJECT public: tst_QUndoStack(); private slots: void undoRedo(); void setIndex(); void setClean(); void clear(); void childCommand(); void macroBeginEnd(); void compression(); void undoLimit(); }; tst_QUndoStack::tst_QUndoStack() { } static QString glue(const QString &s1, const QString &s2) { QString result; result.append(s1); if (!s1.isEmpty() && !s2.isEmpty()) result.append(' '); result.append(s2); return result; } static void checkState(QSignalSpy &redoTextChangedSpy, QSignalSpy &canRedoChangedSpy, QSignalSpy &undoTextChangedSpy, QAction *const redoAction, QAction *const undoAction, QSignalSpy &canUndoChangedSpy, QSignalSpy &cleanChangedSpy, QSignalSpy &indexChangedSpy, QUndoStack &stack, const bool _clean, const int _count, const int _index, const bool _canUndo, const QString &_undoText, const bool _canRedo, const QString &_redoText, const bool _cleanChanged, const bool _indexChanged, const bool _undoChanged, const bool _redoChanged) { QCOMPARE(stack.count(), _count); QCOMPARE(stack.isClean(), _clean); QCOMPARE(stack.index(), _index); QCOMPARE(stack.canUndo(), _canUndo); QCOMPARE(stack.undoText(), QString(_undoText)); QCOMPARE(stack.canRedo(), _canRedo); QCOMPARE(stack.redoText(), QString(_redoText)); if (_indexChanged) { QCOMPARE(indexChangedSpy.count(), 1); QCOMPARE(indexChangedSpy.at(0).at(0).toInt(), _index); indexChangedSpy.clear(); } else { QCOMPARE(indexChangedSpy.count(), 0); } if (_cleanChanged) { QCOMPARE(cleanChangedSpy.count(), 1); QCOMPARE(cleanChangedSpy.at(0).at(0).toBool(), _clean); cleanChangedSpy.clear(); } else { QCOMPARE(cleanChangedSpy.count(), 0); } if (_undoChanged) { QCOMPARE(canUndoChangedSpy.count(), 1); QCOMPARE(canUndoChangedSpy.at(0).at(0).toBool(), _canUndo); QCOMPARE(undoAction->isEnabled(), _canUndo); QCOMPARE(undoTextChangedSpy.count(), 1); QCOMPARE(undoTextChangedSpy.at(0).at(0).toString(), QString(_undoText)); QCOMPARE(undoAction->text(), glue("foo", _undoText)); canUndoChangedSpy.clear(); undoTextChangedSpy.clear(); } else { QCOMPARE(canUndoChangedSpy.count(), 0); QCOMPARE(undoTextChangedSpy.count(), 0); } if (_redoChanged) { QCOMPARE(canRedoChangedSpy.count(), 1); QCOMPARE(canRedoChangedSpy.at(0).at(0).toBool(), _canRedo); QCOMPARE(redoAction->isEnabled(), _canRedo); QCOMPARE(redoTextChangedSpy.count(), 1); QCOMPARE(redoTextChangedSpy.at(0).at(0).toString(), QString(_redoText)); QCOMPARE(redoAction->text(), glue("bar", _redoText)); canRedoChangedSpy.clear(); redoTextChangedSpy.clear(); } else { QCOMPARE(canRedoChangedSpy.count(), 0); QCOMPARE(redoTextChangedSpy.count(), 0); } } void tst_QUndoStack::undoRedo() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; // push, undo, redo checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.undo(); // nothing to undo QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new InsertCommand(&str, 0, "hello")); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 2, "123")); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "insert", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.redo(); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.redo(); // nothing to redo QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.undo(); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "insert", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); // nothing to undo QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged // push after undo - check that undone commands get deleted stack.redo(); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new RemoveCommand(&str, 2, 2)); QCOMPARE(str, QString("heo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count - still 2, last command got deleted 2, // index true, // canUndo "remove", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "remove", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 0, "goodbye")); QCOMPARE(str, QString("goodbye")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count - two commands got deleted 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged } void tst_QUndoStack::setIndex() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; stack.setIndex(10); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.setIndex(0); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.setIndex(-10); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new InsertCommand(&str, 0, "hello")); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 2, "123")); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(2); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.setIndex(0); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(10); // should set index to 2 QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(-10); // should set index to 0 QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(1); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(2); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged } void tst_QUndoStack::setClean() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; QCOMPARE(stack.cleanIndex(), 0); stack.setClean(); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged QCOMPARE(stack.cleanIndex(), 0); stack.push(new InsertCommand(&str, 0, "goodbye")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), 0); stack.setClean(); QCOMPARE(str, QString("goodbye")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged QCOMPARE(stack.cleanIndex(), 1); stack.push(new AppendCommand(&str, " cowboy")); QCOMPARE(str, QString("goodbye cowboy")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), 1); stack.undo(); // reaching clean state from above QCOMPARE(str, QString("goodbye")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "append", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), 1); stack.undo(); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), 1); stack.redo(); // reaching clean state from below QCOMPARE(str, QString("goodbye")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "append", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), 1); stack.undo(); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), 1); stack.push(new InsertCommand(&str, 0, "foo")); // the clean state gets deleted! QCOMPARE(str, QString("foo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), -1); stack.undo(); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QCOMPARE(stack.cleanIndex(), -1); } void tst_QUndoStack::clear() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(this, QString("foo")); QAction *redoAction = stack.createRedoAction(this, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; stack.clear(); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new InsertCommand(&str, 0, "hello")); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 2, "123")); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.clear(); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged str.clear(); stack.push(new InsertCommand(&str, 0, "hello")); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 2, "123")); QCOMPARE(str, QString("he123llo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(0); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "insert", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.clear(); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 0, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged } void tst_QUndoStack::childCommand() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; stack.push(new InsertCommand(&str, 0, "hello")); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged QUndoCommand *cmd = new QUndoCommand(); cmd->setText("ding"); new InsertCommand(&str, 5, "world", cmd); new RemoveCommand(&str, 4, 1, cmd); stack.push(cmd); QCOMPARE(str, QString("hellworld")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "ding", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "ding", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.redo(); QCOMPARE(str, QString("hellworld")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "ding", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged delete undoAction; delete redoAction; } void tst_QUndoStack::macroBeginEnd() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; stack.beginMacro("ding"); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged true, // undoChanged true); // redoChanged stack.setClean(); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.undo(); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.redo(); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.setIndex(0); // should do nothing checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 0, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.endMacro(); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index - endMacro() increments index true, // canUndo "ding", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 0, "h")); QCOMPARE(str, QString("h")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 1, "owdy")); QCOMPARE(str, QString("howdy")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(2); QCOMPARE(str, QString("h")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index true, // canUndo "insert", // undoText true, // canRedo "insert", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.beginMacro("dong"); // the "owdy" command gets deleted checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged true, // undoChanged true); // redoChanged stack.push(new InsertCommand(&str, 1, "ello")); QCOMPARE(str, QString("hello")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new RemoveCommand(&str, 1, 2)); QCOMPARE(str, QString("hlo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.beginMacro("dong2"); QCOMPARE(str, QString("hlo")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new RemoveCommand(&str, 1, 1)); QCOMPARE(str, QString("ho")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.endMacro(); QCOMPARE(str, QString("ho")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.endMacro(); QCOMPARE(str, QString("ho")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "dong", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("h")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index true, // canUndo "insert", // undoText true, // canRedo "dong", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 1, // index true, // canUndo "ding", // undoText true, // canRedo "insert", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(3); QCOMPARE(str, QString("ho")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "dong", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setIndex(1); QCOMPARE(str, QString()); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 1, // index true, // canUndo "ding", // undoText true, // canRedo "insert", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged delete undoAction; delete redoAction; } void tst_QUndoStack::compression() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); QString str; AppendCommand::delete_cnt = 0; stack.push(new InsertCommand(&str, 0, "ene")); QCOMPARE(str, QString("ene")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "insert", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, " due")); // #1 QCOMPARE(str, QString("ene due")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, " rike")); // #2 should merge QCOMPARE(str, QString("ene due rike")); QCOMPARE(AppendCommand::delete_cnt, 1); // #2 should be deleted checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setClean(); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new AppendCommand(&str, " fake")); // #3 should NOT merge, since the stack was clean QCOMPARE(str, QString("ene due rike fake")); // and we want to be able to return to this state QCOMPARE(AppendCommand::delete_cnt, 1); // #3 should not be deleted checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("ene due rike")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 3, // count 2, // index true, // canUndo "append", // undoText true, // canRedo "append", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("ene")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 1, // index true, // canUndo "insert", // undoText true, // canRedo "append", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "ma", true)); // #4 clean state gets deleted! QCOMPARE(str, QString("enema")); QCOMPARE(AppendCommand::delete_cnt, 3); // #1 got deleted checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "trix")); // #5 should NOT merge QCOMPARE(str, QString("enematrix")); QCOMPARE(AppendCommand::delete_cnt, 3); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("enema")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index true, // canUndo "append", // undoText true, // canRedo "append", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged // and now for command compression inside macros stack.setClean(); QCOMPARE(str, QString("enema")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 3, // count 2, // index true, // canUndo "append", // undoText true, // canRedo "append", // redoText true, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.beginMacro("ding"); QCOMPARE(str, QString("enema")); QCOMPARE(AppendCommand::delete_cnt, 4); // #5 gets deleted checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged true, // undoChanged true); // redoChanged AppendCommand *merge_cmd = new AppendCommand(&str, "top"); stack.push(merge_cmd); // #6 QCOMPARE(merge_cmd->merged, false); QCOMPARE(str, QString("enematop")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new AppendCommand(&str, "eja")); // #7 should merge QCOMPARE(str, QString("enematopeja")); QCOMPARE(merge_cmd->merged, true); QCOMPARE(AppendCommand::delete_cnt, 5); // #7 gets deleted checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged merge_cmd->merged = false; stack.push(new InsertCommand(&str, 2, "123")); // should not merge QCOMPARE(str, QString("en123ematopeja")); QCOMPARE(merge_cmd->merged, false); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.endMacro(); QCOMPARE(str, QString("en123ematopeja")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "ding", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("enema")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 3, // count 2, // index true, // canUndo "append", // undoText true, // canRedo "ding", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.redo(); QCOMPARE(str, QString("en123ematopeja")); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 3, // index true, // canUndo "ding", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged delete undoAction; delete redoAction; } void tst_QUndoStack::undoLimit() { QUndoStack stack; QAction *undoAction = stack.createUndoAction(0, QString("foo")); QAction *redoAction = stack.createRedoAction(0, QString("bar")); QSignalSpy indexChangedSpy(&stack, SIGNAL(indexChanged(int))); QSignalSpy cleanChangedSpy(&stack, SIGNAL(cleanChanged(bool))); QSignalSpy canUndoChangedSpy(&stack, SIGNAL(canUndoChanged(bool))); QSignalSpy undoTextChangedSpy(&stack, SIGNAL(undoTextChanged(QString))); QSignalSpy canRedoChangedSpy(&stack, SIGNAL(canRedoChanged(bool))); QSignalSpy redoTextChangedSpy(&stack, SIGNAL(redoTextChanged(QString))); AppendCommand::delete_cnt = 0; QString str; QCOMPARE(stack.undoLimit(), 0); stack.setUndoLimit(2); QCOMPARE(stack.undoLimit(), 2); stack.push(new AppendCommand(&str, "1", true)); QCOMPARE(str, QString("1")); QCOMPARE(AppendCommand::delete_cnt, 0); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "2", true)); QCOMPARE(str, QString("12")); QCOMPARE(AppendCommand::delete_cnt, 0); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.setClean(); QCOMPARE(str, QString("12")); QCOMPARE(AppendCommand::delete_cnt, 0); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new AppendCommand(&str, "3", true)); QCOMPARE(str, QString("123")); QCOMPARE(AppendCommand::delete_cnt, 1); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "4", true)); QCOMPARE(str, QString("1234")); QCOMPARE(AppendCommand::delete_cnt, 2); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("123")); QCOMPARE(AppendCommand::delete_cnt, 2); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "append", // undoText true, // canRedo "append", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("12")); QCOMPARE(AppendCommand::delete_cnt, 2); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, true, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "append", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "3", true)); QCOMPARE(str, QString("123")); QCOMPARE(AppendCommand::delete_cnt, 4); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText true, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "4", true)); QCOMPARE(str, QString("1234")); QCOMPARE(AppendCommand::delete_cnt, 4); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "5", true)); QCOMPARE(str, QString("12345")); QCOMPARE(AppendCommand::delete_cnt, 5); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("1234")); QCOMPARE(AppendCommand::delete_cnt, 5); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "append", // undoText true, // canRedo "append", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("123")); QCOMPARE(AppendCommand::delete_cnt, 5); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "append", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "4", true)); QCOMPARE(str, QString("1234")); QCOMPARE(AppendCommand::delete_cnt, 7); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 1, // count 1, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "5")); QCOMPARE(str, QString("12345")); QCOMPARE(AppendCommand::delete_cnt, 7); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "6", true)); // should be merged QCOMPARE(str, QString("123456")); QCOMPARE(AppendCommand::delete_cnt, 8); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "append", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.beginMacro("foo"); QCOMPARE(str, QString("123456")); QCOMPARE(AppendCommand::delete_cnt, 8); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged true, // undoChanged true); // redoChanged stack.push(new AppendCommand(&str, "7", true)); QCOMPARE(str, QString("1234567")); QCOMPARE(AppendCommand::delete_cnt, 8); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.push(new AppendCommand(&str, "8")); QCOMPARE(str, QString("12345678")); QCOMPARE(AppendCommand::delete_cnt, 8); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 3, // count 2, // index false, // canUndo "", // undoText false, // canRedo "", // redoText false, // cleanChanged false, // indexChanged false, // undoChanged false); // redoChanged stack.endMacro(); QCOMPARE(str, QString("12345678")); QCOMPARE(AppendCommand::delete_cnt, 9); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 2, // index true, // canUndo "foo", // undoText false, // canRedo "", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("123456")); QCOMPARE(AppendCommand::delete_cnt, 9); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 1, // index true, // canUndo "append", // undoText true, // canRedo "foo", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged stack.undo(); QCOMPARE(str, QString("1234")); QCOMPARE(AppendCommand::delete_cnt, 9); checkState(redoTextChangedSpy, canRedoChangedSpy, undoTextChangedSpy, redoAction, undoAction, canUndoChangedSpy, cleanChangedSpy, indexChangedSpy, stack, false, // clean 2, // count 0, // index false, // canUndo "", // undoText true, // canRedo "append", // redoText false, // cleanChanged true, // indexChanged true, // undoChanged true); // redoChanged } QTEST_MAIN(tst_QUndoStack) #include "tst_qundostack.moc"