|  | Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# commands.h Example File
demos/undo/commands.h

     /****************************************************************************
     **
     ** Copyright (C) 2005-$THISYEAR$ $TROLLTECH$. All rights reserved.
     **
     ** This file is part of the $MODULE$ of the Qt Toolkit.
     **
     ** $TROLLTECH_DUAL_LICENSE$
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #ifndef COMMANDS_H
     #define COMMANDS_H

     #include <QUndoCommand>
     #include "document.h"

     class AddShapeCommand : public QUndoCommand
     {
     public:
         AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent = 0);
         void undo();
         void redo();

     private:
         Document *m_doc;
         Shape m_shape;
         QString m_shapeName;
     };

     class RemoveShapeCommand : public QUndoCommand
     {
     public:
         RemoveShapeCommand(Document *doc, const QString &shapeName, QUndoCommand *parent = 0);
         void undo();
         void redo();

     private:
         Document *m_doc;
         Shape m_shape;
         QString m_shapeName;
     };

     class SetShapeColorCommand : public QUndoCommand
     {
     public:
         SetShapeColorCommand(Document *doc, const QString &shapeName, const QColor &color,
                                 QUndoCommand *parent = 0);

         void undo();
         void redo();

         bool mergeWith(const QUndoCommand *command);
         int id() const;

     private:
         Document *m_doc;
         QString m_shapeName;
         QColor m_oldColor;
         QColor m_newColor;
     };

     class SetShapeRectCommand : public QUndoCommand
     {
     public:
         SetShapeRectCommand(Document *doc, const QString &shapeName, const QRect &rect,
                                 QUndoCommand *parent = 0);

         void undo();
         void redo();

         bool mergeWith(const QUndoCommand *command);
         int id() const;

     private:
         Document *m_doc;
         QString m_shapeName;
         QRect m_oldRect;
         QRect m_newRect;
     };

     #endif // COMMANDS_H