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

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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

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

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** this package.

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** GNU Lesser General Public License Usage

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** 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

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** $QT_END_LICENSE$

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

#ifndef QTABWIDGET_H

#define QTABWIDGET_H

#include <QtGui/qwidget.h>

#include <QtGui/qicon.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

#ifndef QT_NO_TABWIDGET

class QTabBar;

class QTabWidgetPrivate;

class QStyleOptionTabWidgetFrame;

class Q_GUI_EXPORT QTabWidget : public QWidget

{

    Q_OBJECT

    Q_ENUMS(TabPosition TabShape)

    Q_PROPERTY(TabPosition tabPosition READ tabPosition WRITE setTabPosition)

    Q_PROPERTY(TabShape tabShape READ tabShape WRITE setTabShape)

    Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentChanged)

    Q_PROPERTY(int count READ count)

    Q_PROPERTY(QSize iconSize READ iconSize WRITE setIconSize)

    Q_PROPERTY(Qt::TextElideMode elideMode READ elideMode WRITE setElideMode)

    Q_PROPERTY(bool usesScrollButtons READ usesScrollButtons WRITE setUsesScrollButtons)

    Q_PROPERTY(bool documentMode READ documentMode WRITE setDocumentMode)

    Q_PROPERTY(bool tabsClosable READ tabsClosable WRITE setTabsClosable)

    Q_PROPERTY(bool movable READ isMovable WRITE setMovable)

public:

    explicit QTabWidget(QWidget *parent = 0);

    ~QTabWidget();

    int addTab(QWidget *widget, const QString &);

    int addTab(QWidget *widget, const QIcon& icon, const QString &label);

    int insertTab(int index, QWidget *widget, const QString &);

    int insertTab(int index, QWidget *widget, const QIcon& icon, const QString &label);

    void removeTab(int index);

    bool isTabEnabled(int index) const;

    void setTabEnabled(int index, bool);

    QString tabText(int index) const;

    void setTabText(int index, const QString &);

    QIcon tabIcon(int index) const;

    void setTabIcon(int index, const QIcon & icon);

#ifndef QT_NO_TOOLTIP

    void setTabToolTip(int index, const QString & tip);

    QString tabToolTip(int index) const;

#endif

#ifndef QT_NO_WHATSTHIS

    void setTabWhatsThis(int index, const QString &text);

    QString tabWhatsThis(int index) const;

#endif

    int currentIndex() const;

    QWidget *currentWidget() const;

    QWidget *widget(int index) const;

    int indexOf(QWidget *widget) const;

    int count() const;

    enum TabPosition { North, South, West, East

#if defined(QT3_SUPPORT) && !defined(Q_MOC_RUN)

        , Top = North, Bottom = South

#endif

    };

    TabPosition tabPosition() const;

    void setTabPosition(TabPosition);

    bool tabsClosable() const;

    void setTabsClosable(bool closeable);

    bool isMovable() const;

    void setMovable(bool movable);

    enum TabShape { Rounded, Triangular };

    TabShape tabShape() const;

    void setTabShape(TabShape s);

    QSize sizeHint() const;

    QSize minimumSizeHint() const;

    void setCornerWidget(QWidget * w, Qt::Corner corner = Qt::TopRightCorner);

    QWidget * cornerWidget(Qt::Corner corner = Qt::TopRightCorner) const;

    Qt::TextElideMode elideMode() const;

    void setElideMode(Qt::TextElideMode);

    QSize iconSize() const;

    void setIconSize(const QSize &size);

    bool usesScrollButtons() const;

    void setUsesScrollButtons(bool useButtons);

    bool documentMode() const;

    void setDocumentMode(bool set);

    void clear();

public Q_SLOTS:

    void setCurrentIndex(int index);

    void setCurrentWidget(QWidget *widget);

Q_SIGNALS:

    void currentChanged(int index);

    void tabCloseRequested(int index);

protected:

    virtual void tabInserted(int index);

    virtual void tabRemoved(int index);

    void showEvent(QShowEvent *);

    void resizeEvent(QResizeEvent *);

    void keyPressEvent(QKeyEvent *);

    void paintEvent(QPaintEvent *);

    void setTabBar(QTabBar *);

    QTabBar* tabBar() const;

    void changeEvent(QEvent *);

    bool event(QEvent *);

    void initStyleOption(QStyleOptionTabWidgetFrame *option) const;

#ifdef QT3_SUPPORT

public:

    QT3_SUPPORT_CONSTRUCTOR QTabWidget(QWidget *parent, const char *name, Qt::WindowFlags f = 0);

    inline QT3_SUPPORT void insertTab(QWidget * w, const QString &s, int index = -1) { insertTab(index, w, s); }

    inline QT3_SUPPORT void insertTab(QWidget *child, const QIcon& icon,

                                    const QString &label, int index = -1) { insertTab(index, child, icon, label); }

    inline QT3_SUPPORT void changeTab(QWidget *w, const QString &s) {setTabText(indexOf(w), s); }

    inline QT3_SUPPORT void changeTab(QWidget *w, const QIcon& icon,

                                    const QString &label) { int idx = indexOf(w); setTabText(idx, label); setTabIcon(idx, icon); }

    inline QT3_SUPPORT bool isTabEnabled( QWidget *w) const {return isTabEnabled(indexOf(w)); }

    inline QT3_SUPPORT void setTabEnabled(QWidget *w, bool b) { setTabEnabled(indexOf(w), b); }

    inline QT3_SUPPORT QString tabLabel(QWidget *w) const  {return tabText(indexOf(w)); }

    inline QT3_SUPPORT void setTabLabel(QWidget *w, const QString &l) { setTabText(indexOf(w), l); }

    inline QT3_SUPPORT QIcon tabIconSet(QWidget * w) const  {return tabIcon(indexOf(w)); }

    inline QT3_SUPPORT void setTabIconSet(QWidget * w, const QIcon & icon) { setTabIcon(indexOf(w), icon); }

    inline QT3_SUPPORT void removeTabToolTip(QWidget * w) {

#ifndef QT_NO_TOOLTIP

        setTabToolTip(indexOf(w), QString());

#else

        Q_UNUSED(w);

#endif

    }

    inline QT3_SUPPORT void setTabToolTip(QWidget * w, const QString & tip) {

#ifndef QT_NO_TOOLTIP

        setTabToolTip(indexOf(w), tip);

#else

        Q_UNUSED(w);

        Q_UNUSED(tip);

#endif

    }

    inline QT3_SUPPORT QString tabToolTip(QWidget * w) const {

#ifndef QT_NO_TOOLTIP

        return tabToolTip(indexOf(w));

#else

        Q_UNUSED(w);

        return QString();

#endif

    }

    inline QT3_SUPPORT QWidget * currentPage() const { return currentWidget(); }

    inline QT3_SUPPORT QWidget *page(int index) const { return widget(index); }

    inline QT3_SUPPORT QString label(int index) const { return tabText(index); }

    inline QT3_SUPPORT int currentPageIndex() const { return currentIndex(); }

    inline QT3_SUPPORT int margin() const { return 0; }

    inline QT3_SUPPORT void setMargin(int) {}

public Q_SLOTS:

    inline QT_MOC_COMPAT void setCurrentPage(int index) { setCurrentIndex(index); }

    inline QT_MOC_COMPAT void showPage(QWidget *w) { setCurrentIndex(indexOf(w)); }

    inline QT_MOC_COMPAT void removePage(QWidget *w) { removeTab(indexOf(w)); }

Q_SIGNALS:

    QT_MOC_COMPAT void currentChanged(QWidget *);

    QT_MOC_COMPAT void selected(const QString&);

#endif // QT3_SUPPORT

private:

    Q_DECLARE_PRIVATE(QTabWidget)

    Q_DISABLE_COPY(QTabWidget)

    Q_PRIVATE_SLOT(d_func(), void _q_showTab(int))

    Q_PRIVATE_SLOT(d_func(), void _q_removeTab(int))

    Q_PRIVATE_SLOT(d_func(), void _q_tabMoved(int, int))

    void setUpLayout(bool = false);

    friend class Q3TabDialog;

};

#endif // QT_NO_TABWIDGET

QT_END_NAMESPACE

QT_END_HEADER

#endif // QTABWIDGET_H