forked from qt-creator/qt-creator
		
	
		
			
				
	
	
		
			113 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			113 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact:  Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file.  Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception
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** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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#ifndef PROCOMMANDMANAGER_H
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#define PROCOMMANDMANAGER_H
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#include "namespace_global.h"
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#include <QtCore/QModelIndex>
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QT_BEGIN_NAMESPACE
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class ProItem;
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QT_END_NAMESPACE
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namespace Qt4ProjectManager {
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namespace Internal {
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class ProCommand
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{
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public:
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    virtual ~ProCommand() {}
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    virtual bool redo() = 0;
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    virtual void undo() = 0;
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};
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class ProCommandGroup
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{
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public:
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    ProCommandGroup(const QString &name);
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    ~ProCommandGroup();
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    void appendCommand(ProCommand *cmd);
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    void undo();
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    void redo();
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private:
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    QString m_name;
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    QList<ProCommand *> m_commands;
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};
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class ProCommandManager : public QObject
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{
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    Q_OBJECT
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public:
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    ProCommandManager(QObject *parent);
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    ~ProCommandManager();
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    void beginGroup(const QString &name);
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    void endGroup();
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    // excutes the Command and adds it to the open group
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    bool command(ProCommand *cmd);
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    bool hasGroup() const;
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    bool isDirty() const;
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    void notifySave();
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    bool canUndo() const;
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    bool canRedo() const;
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public slots:
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    void undo();
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    void redo();
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signals:
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    void modified();
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private:
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    ProCommandGroup *m_group;
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    QList<ProCommandGroup *> m_groups;
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    int m_pos;
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    ProCommandGroup *m_savepoint;
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};
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} //namespace Internal
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} //namespace Qt4ProjectManager
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#endif // PROCOMMANDMANAGER_H
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