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

**

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

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

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** This file is part of the Qt3Support module of the Qt Toolkit.

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** 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

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**

** 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 Q3HEADER_H

#define Q3HEADER_H

#include <QtGui/qicon.h>

#include <QtGui/qwidget.h>

#include <QtCore/qstring.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Qt3SupportLight)

#ifndef QT_NO_HEADER

class QShowEvent;

class Q3HeaderData;

class Q3Table;

class Q3ListView;

class Q_COMPAT_EXPORT Q3Header : public QWidget

{

    friend class Q3Table;

    friend class Q3TableHeader;

    friend class Q3ListView;

    Q_OBJECT

    Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)

    Q_PROPERTY(bool tracking READ tracking WRITE setTracking)

    Q_PROPERTY(int count READ count)

    Q_PROPERTY(int offset READ offset WRITE setOffset)

    Q_PROPERTY(bool moving READ isMovingEnabled WRITE setMovingEnabled)

    Q_PROPERTY(bool stretching READ isStretchEnabled WRITE setStretchEnabled)

public:

    Q3Header(QWidget* parent=0, const char* name=0);

    Q3Header(int, QWidget* parent=0, const char* name=0);

    ~Q3Header();

    int                addLabel(const QString &, int size = -1);

    int                addLabel(const QIcon&, const QString &, int size = -1);

    void         removeLabel(int section);

    virtual void setLabel(int, const QString &, int size = -1);

    virtual void setLabel(int, const QIcon&, const QString &, int size = -1);

    QString         label(int section) const;

    QIcon*         iconSet(int section) const;

    virtual void setOrientation(Qt::Orientation);

    Qt::Orientation orientation() const;

    virtual void setTracking(bool enable);

    bool        tracking() const;

    virtual void setClickEnabled(bool, int section = -1);

    virtual void setResizeEnabled(bool, int section = -1);

    virtual void setMovingEnabled(bool);

    virtual void setStretchEnabled(bool b, int section);

    void         setStretchEnabled(bool b) { setStretchEnabled(b, -1); }

    bool         isClickEnabled(int section = -1) const;

    bool         isResizeEnabled(int section = -1) const;

    bool         isMovingEnabled() const;

    bool         isStretchEnabled() const;

    bool         isStretchEnabled(int section) const;

    void         resizeSection(int section, int s);

    int                sectionSize(int section) const;

    int                sectionPos(int section) const;

    int                sectionAt(int pos) const;

    int                count() const;

    int         headerWidth() const;

    QRect        sectionRect(int section) const;

    virtual void setCellSize(int , int); // obsolete, do not use

    int                cellSize(int i) const { return sectionSize(mapToSection(i)); } // obsolete, do not use

    int                cellPos(int) const; // obsolete, do not use

    int                cellAt(int pos) const { return mapToIndex(sectionAt(pos + offset())); } // obsolete, do not use

    int         offset() const;

    QSize        sizeHint() const;

    int                mapToSection(int index) const;

    int                mapToIndex(int section) const;

    int                mapToLogical(int) const; // obsolete, do not use

    int                mapToActual(int) const; // obsolete, do not use

    void         moveSection(int section, int toIndex);

    virtual void moveCell(int, int); // obsolete, do not use

    void         setSortIndicator(int section, bool ascending = true); // obsolete, do not use

    inline void setSortIndicator(int section, Qt::SortOrder order)

        { setSortIndicator(section, (order == Qt::AscendingOrder)); }

    int                sortIndicatorSection() const;

    Qt::SortOrder        sortIndicatorOrder() const;

    void        adjustHeaderSize() { adjustHeaderSize(-1); }

public Q_SLOTS:

    void         setUpdatesEnabled(bool enable);

    virtual void setOffset(int pos);

Q_SIGNALS:

    void        clicked(int section);

    void        pressed(int section);

    void        released(int section);

    void        sizeChange(int section, int oldSize, int newSize);

    void        indexChange(int section, int fromIndex, int toIndex);

    void        sectionClicked(int); // obsolete, do not use

    void        moved(int, int); // obsolete, do not use

    void        sectionHandleDoubleClicked(int section);

protected:

    void        paintEvent(QPaintEvent *);

    void        showEvent(QShowEvent *e);

    void         resizeEvent(QResizeEvent *e);

    QRect        sRect(int index);

    virtual void paintSection(QPainter *p, int index, const QRect& fr);

    virtual void paintSectionLabel(QPainter* p, int index, const QRect& fr);

    void        changeEvent(QEvent *);

    void        mousePressEvent(QMouseEvent *);

    void        mouseReleaseEvent(QMouseEvent *);

    void        mouseMoveEvent(QMouseEvent *);

    void        mouseDoubleClickEvent(QMouseEvent *);

    void        keyPressEvent(QKeyEvent *);

    void        keyReleaseEvent(QKeyEvent *);

private:

    void        handleColumnMove(int fromIdx, int toIdx);

    void         adjustHeaderSize(int diff);

    void        init(int);

    void        paintRect(int p, int s);

    void        markLine(int idx);

    void        unMarkLine(int idx);

    int                pPos(int i) const;

    int                pSize(int i) const;

    int         findLine(int);

    int                handleAt(int p);

    bool         reverse() const;

    void         calculatePositions(bool onlyVisible = false, int start = 0);

    void        handleColumnResize(int, int, bool, bool = true);

    QSize        sectionSizeHint(int section, const QFontMetrics& fm) const;

    void        setSectionSizeAndHeight(int section, int size);

    void         resizeArrays(int size);

    void         setIsATableHeader(bool b);

    int                offs;

    int                handleIdx;

    int                oldHIdxSize;

    int                moveToIdx;

    enum State { Idle, Sliding, Pressed, Moving, Blocked };

    State        state;

    int        clickPos;

    bool        trackingIsOn;

    int oldHandleIdx;

    int        cachedPos; // not used

    Qt::Orientation orient;

    Q3HeaderData *d;

private:

    Q_DISABLE_COPY(Q3Header)

};

inline Qt::Orientation Q3Header::orientation() const

{

    return orient;

}

inline void Q3Header::setTracking(bool enable) { trackingIsOn = enable; }

inline bool Q3Header::tracking() const { return trackingIsOn; }

extern Q_COMPAT_EXPORT bool qt_qheader_label_return_null_strings; // needed for professional edition

#endif // QT_NO_HEADER

QT_END_NAMESPACE

QT_END_HEADER

#endif // Q3HEADER_H