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

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtGui module of the Qt Toolkit.

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** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

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** $QT_END_LICENSE$

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

#ifndef QMENU_H

#define QMENU_H

#include <QtGui/qwidget.h>

#include <QtCore/qstring.h>

#include <QtGui/qicon.h>

#include <QtGui/qaction.h>

#ifdef QT3_SUPPORT

#include <QtGui/qpixmap.h>

#endif

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_MENU

class QMenuPrivate;

class QStyleOptionMenuItem;

#ifdef QT3_SUPPORT

class QMenuItem;

#endif

class Q_GUI_EXPORT QMenu : public QWidget

{

private:

    Q_OBJECT

    Q_DECLARE_PRIVATE(QMenu)

    Q_PROPERTY(bool tearOffEnabled READ isTearOffEnabled WRITE setTearOffEnabled)

    Q_PROPERTY(QString title READ title WRITE setTitle)

    Q_PROPERTY(QIcon icon READ icon WRITE setIcon)

    Q_PROPERTY(bool separatorsCollapsible READ separatorsCollapsible WRITE setSeparatorsCollapsible)

public:

    explicit QMenu(QWidget *parent = 0);

    explicit QMenu(const QString &title, QWidget *parent = 0);

    ~QMenu();

#ifdef Q_NO_USING_KEYWORD

    inline void addAction(QAction *action) { QWidget::addAction(action); }

#else

    using QWidget::addAction;

#endif

    QAction *addAction(const QString &text);

    QAction *addAction(const QIcon &icon, const QString &text);

    QAction *addAction(const QString &text, const QObject *receiver, const char* member, const QKeySequence &shortcut = 0);

    QAction *addAction(const QIcon &icon, const QString &text, const QObject *receiver, const char* member, const QKeySequence &shortcut = 0);

    QAction *addMenu(QMenu *menu);

    QMenu *addMenu(const QString &title);

    QMenu *addMenu(const QIcon &icon, const QString &title);

    QAction *addSeparator();

    QAction *insertMenu(QAction *before, QMenu *menu);

    QAction *insertSeparator(QAction *before);

    bool isEmpty() const;

    void clear();

    void setTearOffEnabled(bool);

    bool isTearOffEnabled() const;

    bool isTearOffMenuVisible() const;

    void hideTearOffMenu();

    void setDefaultAction(QAction *);

    QAction *defaultAction() const;

    void setActiveAction(QAction *act);

    QAction *activeAction() const;

    void popup(const QPoint &pos, QAction *at=0);

    QAction *exec();

    QAction *exec(const QPoint &pos, QAction *at=0);

    // ### Qt 5: merge

    static QAction *exec(QList<QAction*> actions, const QPoint &pos, QAction *at=0);

    static QAction *exec(QList<QAction*> actions, const QPoint &pos, QAction *at, QWidget *parent);

    QSize sizeHint() const;

    QRect actionGeometry(QAction *) const;

    QAction *actionAt(const QPoint &) const;

    QAction *menuAction() const;

    QString title() const;

    void setTitle(const QString &title);

    QIcon icon() const;

    void setIcon(const QIcon &icon);

    void setNoReplayFor(QWidget *widget);

#ifdef Q_WS_MAC

    OSMenuRef macMenu(OSMenuRef merge=0);

#endif

#ifdef Q_WS_WINCE

    HMENU wceMenu(bool create = false);

#endif

    bool separatorsCollapsible() const;

    void setSeparatorsCollapsible(bool collapse);

Q_SIGNALS:

    void aboutToShow();

    void aboutToHide();

    void triggered(QAction *action);

    void hovered(QAction *action);

protected:

    int columnCount() const;

    void changeEvent(QEvent *);

    void keyPressEvent(QKeyEvent *);

    void mouseReleaseEvent(QMouseEvent *);

    void mousePressEvent(QMouseEvent *);

    void mouseMoveEvent(QMouseEvent *);

    void wheelEvent(QWheelEvent *);

    void enterEvent(QEvent *);

    void leaveEvent(QEvent *);

    void hideEvent(QHideEvent *);

    void paintEvent(QPaintEvent *);

    void actionEvent(QActionEvent *);

    void timerEvent(QTimerEvent *);

    bool event(QEvent *);

    bool focusNextPrevChild(bool next);

    void initStyleOption(QStyleOptionMenuItem *option, const QAction *action) const;

#ifdef Q_WS_WINCE

    QAction* wceCommands(uint command);

#endif

private Q_SLOTS:

    void internalSetSloppyAction();

    void internalDelayedPopup();

private:

    Q_PRIVATE_SLOT(d_func(), void _q_actionTriggered())

    Q_PRIVATE_SLOT(d_func(), void _q_actionHovered())

    Q_PRIVATE_SLOT(d_func(), void _q_overrideMenuActionDestroyed())

#ifdef QT3_SUPPORT

public:

    //menudata

    inline QT3_SUPPORT uint count() const { return actions().count(); }

    inline QT3_SUPPORT int insertItem(const QString &text, const QObject *receiver, const char* member,

                                    const QKeySequence& shortcut = 0, int id = -1, int index = -1) {

        return insertAny(0, &text, receiver, member, &shortcut, 0, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QIcon& icon, const QString &text,

                                    const QObject *receiver, const char* member,

                                    const QKeySequence& shortcut = 0, int id = -1, int index = -1) {

        return insertAny(&icon, &text, receiver, member, &shortcut, 0, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QPixmap &pixmap, const QObject *receiver, const char* member,

                                    const QKeySequence& shortcut = 0, int id = -1, int index = -1) {

        QIcon icon(pixmap);

        return insertAny(&icon, 0, receiver, member, &shortcut, 0, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QString &text, int id=-1, int index=-1) {

        return insertAny(0, &text, 0, 0, 0, 0, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QIcon& icon, const QString &text, int id=-1, int index=-1) {

        return insertAny(&icon, &text, 0, 0, 0, 0, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QString &text, QMenu *popup, int id=-1, int index=-1) {

        return insertAny(0, &text, 0, 0, 0, popup, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QIcon& icon, const QString &text, QMenu *popup, int id=-1, int index=-1) {

        return insertAny(&icon, &text, 0, 0, 0, popup, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QPixmap &pixmap, int id=-1, int index=-1) {

        QIcon icon(pixmap);

        return insertAny(&icon, 0, 0, 0, 0, 0, id, index);

    }

    inline QT3_SUPPORT int insertItem(const QPixmap &pixmap, QMenu *popup, int id=-1, int index=-1) {

        QIcon icon(pixmap);

        return insertAny(&icon, 0, 0, 0, 0, popup, id, index);

    }

    QT3_SUPPORT int insertItem(QMenuItem *item, int id=-1, int index=-1);

    QT3_SUPPORT int insertSeparator(int index=-1);

    inline QT3_SUPPORT void removeItem(int id) {

        if(QAction *act = findActionForId(id))

            removeAction(act); }

    inline QT3_SUPPORT void removeItemAt(int index) {

        if(QAction *act = actions().value(index))

            removeAction(act); }

#ifndef QT_NO_SHORTCUT

    inline QT3_SUPPORT QKeySequence accel(int id) const {

        if(QAction *act = findActionForId(id))

            return act->shortcut();

        return QKeySequence(); }

    inline QT3_SUPPORT void setAccel(const QKeySequence& key, int id) {

        if(QAction *act = findActionForId(id))

            act->setShortcut(key);

    }

#endif

    inline QT3_SUPPORT QIcon iconSet(int id) const {

        if(QAction *act = findActionForId(id))

            return act->icon();

        return QIcon(); }

    inline QT3_SUPPORT QString text(int id) const {

        if(QAction *act = findActionForId(id))

            return act->text();

        return QString(); }

    inline QT3_SUPPORT QPixmap pixmap(int id) const {

        if(QAction *act = findActionForId(id))

            return act->icon().pixmap(QSize(22, 22));

        return QPixmap(); }

    inline QT3_SUPPORT void setWhatsThis(int id, const QString &w) {

        if(QAction *act = findActionForId(id))

            act->setWhatsThis(w); }

    inline QT3_SUPPORT QString whatsThis(int id) const {

        if(QAction *act = findActionForId(id))

            return act->whatsThis();

        return QString(); }

    inline QT3_SUPPORT void changeItem(int id, const QString &text) {

        if(QAction *act = findActionForId(id))

            act->setText(text); }

    inline QT3_SUPPORT void changeItem(int id, const QPixmap &pixmap) {

        if(QAction *act = findActionForId(id))

            act->setIcon(QIcon(pixmap)); }

    inline QT3_SUPPORT void changeItem(int id, const QIcon &icon, const QString &text) {

        if(QAction *act = findActionForId(id)) {

            act->setIcon(icon);

            act->setText(text);

        }

    }

    inline QT3_SUPPORT void setActiveItem(int id) {

        setActiveAction(findActionForId(id));

    }

    inline QT3_SUPPORT bool isItemActive(int id) const {

        return findActionForId(id) == activeAction();

    }

    inline QT3_SUPPORT bool isItemEnabled(int id) const {

        if(QAction *act = findActionForId(id))

            return act->isEnabled();

        return false; }

    inline QT3_SUPPORT void setItemEnabled(int id, bool enable) {

        if(QAction *act = findActionForId(id))

            act->setEnabled(enable);

    }

    inline QT3_SUPPORT bool isItemChecked(int id) const {

        if(QAction *act = findActionForId(id))

            return act->isChecked();

        return false;

    }

    inline QT3_SUPPORT void setItemChecked(int id, bool check) {

        if(QAction *act = findActionForId(id)) {

            act->setCheckable(true);

            act->setChecked(check);

        }

    }

    inline QT3_SUPPORT bool isItemVisible(int id) const {

        if(QAction *act = findActionForId(id))

            return act->isVisible();

        return false;

    }

    inline QT3_SUPPORT void setItemVisible(int id, bool visible) {

        if(QAction *act = findActionForId(id))

            act->setVisible(visible);

    }

    inline QT3_SUPPORT QRect itemGeometry(int index) {

        if(QAction *act = actions().value(index))

            return actionGeometry(act);

        return QRect();

    }

    inline QT3_SUPPORT QFont itemFont(int id) const {

        if(QAction *act = findActionForId(id))

            return act->font();

        return QFont();

    }

    inline QT3_SUPPORT void setItemFont(int id, const QFont &font) {

        if(QAction *act = findActionForId(id))

            act->setFont(font);

    }

    inline QT3_SUPPORT int indexOf(int id) const {

        return actions().indexOf(findActionForId(id));

    }

    inline QT3_SUPPORT int idAt(int index) const {

        return findIdForAction(actions().value(index));

    }

    QT3_SUPPORT void setId (int index, int id);

    inline QT3_SUPPORT void activateItemAt(int index) {

        if(QAction *ret = actions().value(index))

            ret->activate(QAction::Trigger);

    }

    inline QT3_SUPPORT bool connectItem(int id, const QObject *receiver, const char* member) {

        if(QAction *act = findActionForId(id)) {

            QObject::connect(act, SIGNAL(activated(int)), receiver, member);

            return true;

        }

        return false;

    }

    inline QT3_SUPPORT bool disconnectItem(int id,const QObject *receiver, const char* member) {

        if(QAction *act = findActionForId(id)) {

            QObject::disconnect(act, SIGNAL(triggered()), receiver, member);

            return true;

        }

        return false;

    }

    inline QT3_SUPPORT QMenuItem *findItem(int id) const {

        return reinterpret_cast<QMenuItem*>(findActionForId(id));

    }

    inline QT3_SUPPORT void setCheckable(bool){}

    inline QT3_SUPPORT bool isCheckable() const {return true;}

    QT3_SUPPORT QMenuItem *findPopup( QMenu *popup, int *index );

    QT3_SUPPORT bool setItemParameter(int id, int param);

    QT3_SUPPORT int itemParameter(int id) const;

    //frame

    QT3_SUPPORT int frameWidth() const;

    //popupmenu

    inline QT3_SUPPORT void popup(const QPoint & pos, int indexAtPoint) { popup(pos, actions().value(indexAtPoint)); }

    inline QT3_SUPPORT int insertTearOffHandle(int = 0, int = 0) {

        setTearOffEnabled(true);

        return -1;

    }

protected:

    inline QT3_SUPPORT int itemAtPos(const QPoint &p, bool ignoreSeparator = true) {

        QAction *ret = actionAt(p);

        if(ignoreSeparator && ret && ret->isSeparator())

            return -1;

        return findIdForAction(ret);

    }

    inline QT3_SUPPORT int columns() const { return columnCount(); }

    inline QT3_SUPPORT int itemHeight(int index) {

        return actionGeometry(actions().value(index)).height();

    }

    inline QT3_SUPPORT int itemHeight(QMenuItem *mi) {

        return actionGeometry(reinterpret_cast<QAction *>(mi)).height();

    }

Q_SIGNALS:

    QT_MOC_COMPAT void activated(int itemId);

    QT_MOC_COMPAT void highlighted(int itemId);

private:

    int insertAny(const QIcon *icon, const QString *text, const QObject *receiver, const char *member,

                  const QKeySequence *shorcut, const QMenu *popup, int id, int index);

    QAction *findActionForId(int id) const;

    int findIdForAction(QAction*) const;

#endif

protected:

    QMenu(QMenuPrivate &dd, QWidget* parent = 0);

private:

    Q_DISABLE_COPY(QMenu)

    friend class QMenuBar;

    friend class QMenuBarPrivate;

    friend class QTornOffMenu;

    friend class Q3PopupMenu;

    friend class QComboBox;

    friend class QAction;

    friend class QToolButtonPrivate;

#ifdef Q_WS_MAC

    friend void qt_mac_trayicon_activate_action(QMenu *, QAction *action);

    friend bool qt_mac_watchingAboutToShow(QMenu *);

    friend OSStatus qt_mac_menu_event(EventHandlerCallRef, EventRef, void *);

    friend bool qt_mac_activate_action(OSMenuRef, uint, QAction::ActionEvent, bool);

    friend void qt_mac_emit_menuSignals(QMenu *, bool);

#endif

};

#endif // QT_NO_MENU

QT_END_NAMESPACE

QT_END_HEADER

#endif // QMENU_H