| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the demonstration applications of the Qt Toolkit. |
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| ** as follows: |
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| ****************************************************************************/ |
| |
| #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; |
| } |