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-rw-r--r--examples/widgets/tools/undo/commands.cpp177
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diff --git a/examples/widgets/tools/undo/commands.cpp b/examples/widgets/tools/undo/commands.cpp
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--- a/examples/widgets/tools/undo/commands.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "commands.h"
-
-static constexpr int setShapeRectCommandId = 1;
-static constexpr int setShapeColorCommandId = 2;
-
-/******************************************************************************
-** AddShapeCommand
-*/
-
-AddShapeCommand::AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent)
- : QUndoCommand(parent), m_doc(doc), m_shape(shape)
-{
-}
-
-void AddShapeCommand::undo()
-{
- m_doc->deleteShape(m_shapeName);
-}
-
-void AddShapeCommand::redo()
-{
- // A shape only gets a name when it is inserted into a document
- m_shapeName = m_doc->addShape(m_shape);
- setText(QObject::tr("Add %1").arg(m_shapeName));
-}
-
-/******************************************************************************
-** RemoveShapeCommand
-*/
-
-RemoveShapeCommand::RemoveShapeCommand(Document *doc, const QString &shapeName,
- QUndoCommand *parent)
- : QUndoCommand(parent), m_doc(doc), m_shape(doc->shape(shapeName))
- , m_shapeName(shapeName)
-{
- setText(QObject::tr("Remove %1").arg(shapeName));
-}
-
-void RemoveShapeCommand::undo()
-{
- m_shapeName = m_doc->addShape(m_shape);
-}
-
-void RemoveShapeCommand::redo()
-{
- m_doc->deleteShape(m_shapeName);
-}
-
-/******************************************************************************
-** SetShapeColorCommand
-*/
-
-SetShapeColorCommand::SetShapeColorCommand(Document *doc, const QString &shapeName,
- const QColor &color, QUndoCommand *parent)
- : QUndoCommand(parent), m_doc(doc), m_shapeName(shapeName)
- , m_oldColor(doc->shape(shapeName).color()), m_newColor(color)
-{
- setText(QObject::tr("Set %1's color").arg(shapeName));
-}
-
-void SetShapeColorCommand::undo()
-{
- m_doc->setShapeColor(m_shapeName, m_oldColor);
-}
-
-void SetShapeColorCommand::redo()
-{
- m_doc->setShapeColor(m_shapeName, m_newColor);
-}
-
-bool SetShapeColorCommand::mergeWith(const QUndoCommand *command)
-{
- if (command->id() != setShapeColorCommandId)
- return false;
-
- const SetShapeColorCommand *other = static_cast<const SetShapeColorCommand*>(command);
- if (m_shapeName != other->m_shapeName)
- return false;
-
- m_newColor = other->m_newColor;
- return true;
-}
-
-int SetShapeColorCommand::id() const
-{
- return setShapeColorCommandId;
-}
-
-/******************************************************************************
-** SetShapeRectCommand
-*/
-
-SetShapeRectCommand::SetShapeRectCommand(Document *doc, const QString &shapeName,
- const QRect &rect, QUndoCommand *parent)
- : QUndoCommand(parent), m_doc(doc), m_shapeName(shapeName)
- , m_oldRect(doc->shape(shapeName).rect()), m_newRect(rect)
-{
- setText(QObject::tr("Change %1's geometry").arg(shapeName));
-}
-
-void SetShapeRectCommand::undo()
-{
- m_doc->setShapeRect(m_shapeName, m_oldRect);
-}
-
-void SetShapeRectCommand::redo()
-{
- m_doc->setShapeRect(m_shapeName, m_newRect);
-}
-
-bool SetShapeRectCommand::mergeWith(const QUndoCommand *command)
-{
- if (command->id() != setShapeRectCommandId)
- return false;
-
- const SetShapeRectCommand *other = static_cast<const SetShapeRectCommand*>(command);
- if (m_shapeName != other->m_shapeName)
- return false;
-
- m_newRect = other->m_newRect;
- return true;
-}
-
-int SetShapeRectCommand::id() const
-{
- return setShapeRectCommandId;
-}