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//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of Qt Designer.  This header

// file may change from version to version without notice, or even be removed.

//

// We mean it.

//

#ifndef PROMOTIONTASKMENU_H

#define PROMOTIONTASKMENU_H

#include "shared_global_p.h"

#include <QtCore/QObject>

#include <QtCore/QPointer>

#include <QtCore/QList>

QT_BEGIN_NAMESPACE

class QDesignerFormWindowInterface;

class QDesignerFormEditorInterface;

class QAction;

class QMenu;

class QWidget;

class QSignalMapper;

namespace qdesigner_internal {

// A helper class for creating promotion context menus and handling promotion actions.

class QDESIGNER_SHARED_EXPORT PromotionTaskMenu: public QObject

{

    Q_OBJECT

public:

    enum Mode {

        ModeSingleWidget,

        ModeManagedMultiSelection,

        ModeUnmanagedMultiSelection

    };

    explicit PromotionTaskMenu(QWidget *widget,Mode mode = ModeManagedMultiSelection, QObject *parent = 0);

    Mode mode() const;

    void setMode(Mode m);

    void setWidget(QWidget *widget);

    // Set menu labels

    void setPromoteLabel(const QString &promoteLabel);

    void setEditPromoteToLabel(const QString &promoteEditLabel);

    // Defaults to "Demote to %1".arg(class).

    void setDemoteLabel(const QString &demoteLabel);

    typedef QList<QAction*> ActionList;

    enum AddFlags { LeadingSeparator = 1, TrailingSeparator = 2, SuppressGlobalEdit = 4};

    // Adds a list of promotion actions according to the current promotion state of the widget.

    void addActions(QDesignerFormWindowInterface *fw, unsigned flags, ActionList &actionList);

    // Convenience that finds the form window.

    void addActions(unsigned flags, ActionList &actionList);

    void addActions(QDesignerFormWindowInterface *fw, unsigned flags, QMenu *menu);

    void addActions(unsigned flags, QMenu *menu);

    // Pop up the editor in a global context.

    static void editPromotedWidgets(QDesignerFormEditorInterface *core, QWidget* parent);

private slots:

    void slotPromoteToCustomWidget(const QString &customClassName);

    void slotDemoteFromCustomWidget();

    void slotEditPromotedWidgets();

    void slotEditPromoteTo();

    void slotEditSignalsSlots();

private:

    void promoteTo(QDesignerFormWindowInterface *fw, const QString &customClassName);

    enum PromotionState { NotApplicable, NoHomogenousSelection, CanPromote, CanDemote };

    PromotionState createPromotionActions(QDesignerFormWindowInterface *formWindow);

    QDesignerFormWindowInterface *formWindow() const;

    typedef QList<QPointer<QWidget> > PromotionSelectionList;

    PromotionSelectionList promotionSelectionList(QDesignerFormWindowInterface *formWindow) const;

    Mode m_mode;

    QPointer<QWidget> m_widget;

    QSignalMapper *m_promotionMapper;

    // Per-Widget actions

    QList<QAction *> m_promotionActions;

    QAction *m_globalEditAction;

    QAction *m_EditPromoteToAction;

    QAction *m_EditSignalsSlotsAction;

    QString m_promoteLabel;

    QString m_demoteLabel;

};

} // namespace qdesigner_internal

QT_END_NAMESPACE

#endif // PROMOTIONTASKMENU_H