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****************************************************************************/

#ifndef KUNDO2GROUP_H
#define KUNDO2GROUP_H

#include <QObject>
#include <QString>

#include "kexiundo_export.h"

class KUndo2GroupPrivate;
class KUndo2QStack;
class QAction;

#ifndef QT_NO_UNDOGROUP

class KEXIUNDO_EXPORT KUndo2Group : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(KUndo2Group)

public:
    explicit KUndo2Group(QObject *parent = 0);
    ~KUndo2Group();

    void addStack(KUndo2QStack *stack);
    void removeStack(KUndo2QStack *stack);
    QList<KUndo2QStack*> stacks() const;
    KUndo2QStack *activeStack() const;

#ifndef QT_NO_ACTION
    QAction *createUndoAction(QObject *parent) const;
    QAction *createRedoAction(QObject *parent) const;
#endif // QT_NO_ACTION
    bool canUndo() const;
    bool canRedo() const;
    QString undoText() const;
    QString redoText() const;
    bool isClean() const;

public Q_SLOTS:
    void undo();
    void redo();
    void setActiveStack(KUndo2QStack *stack);

Q_SIGNALS:
    void activeStackChanged(KUndo2QStack *stack);
    void indexChanged(int idx);
    void cleanChanged(bool clean);
    void canUndoChanged(bool canUndo);
    void canRedoChanged(bool canRedo);
    void undoTextChanged(const QString &undoActionText);
    void redoTextChanged(const QString &redoActionText);

private:
    // from QUndoGroupPrivate
    KUndo2QStack *m_active;
    QList<KUndo2QStack*> m_stack_list;

    Q_DISABLE_COPY(KUndo2Group)
};

#endif // QT_NO_UNDOGROUP

#endif // KUNDO2GROUP_H
