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# qheader.h

This is the verbatim text of the qheader.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/src/widgets/qheader.h   2.3.5   edited 2001-11-26 $
    **
    ** Definition of QHeader widget class (table header)
    **
    ** Created : 961105
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the widgets module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    **********************************************************************/

    #ifndef QHEADER_H
    #define QHEADER_H

    #ifndef QT_H
    #include "qwidget.h"
    #include "qstring.h"
    #include "qiconset.h"
    #endif // QT_H

    #ifndef QT_NO_HEADER

    struct QHeaderData;
    class QShowEvent;

    class Q_EXPORT QHeader : public QWidget
    {
        Q_OBJECT
        Q_PROPERTY( 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 )

    public:
        QHeader( QWidget *parent=0, const char *name=0 );
        QHeader( int, QWidget *parent=0, const char *name=0 );
        ~QHeader();

        int         addLabel( const QString &, int size = -1 );
        int         addLabel( const QIconSet&, const QString &, int size = -1 );
        void        removeLabel( int section );
        virtual void setLabel( int, const QString &, int size = -1 );
        virtual void setLabel( int, const QIconSet&, const QString &, int size = -1 );
        QString     label( int section ) const;
        QIconSet*   iconSet( int section ) const;

        virtual void setOrientation( Orientation );
        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 );
        bool isClickEnabled( int section = -1 ) const;
        bool isResizeEnabled( int section = -1 ) const;
        bool isMovingEnabled() 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;

        virtual void setCellSize( int , int ); // obsolete, do not use
        int         cellSize( int ) const; // obsolete, do not use
        int         cellPos( int ) const; // obsolete, do not use
        int         cellAt( int ) const; // obsolete, do not use

        int         offset() const;

        QSize       sizeHint() const;
        QSizePolicy sizePolicy() 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 increasing = TRUE );

    public slots:
        void setUpdatesEnabled( bool enable );
        virtual void setOffset( int pos );

    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

    protected:
        void        paintEvent( QPaintEvent * );
        void        showEvent( QShowEvent *e );
        QRect       sRect( int index );

        void        paintSection( QPainter *p, int index, QRect fr); // ### const QRect& ## virtual 3.0
        void        paintSectionLabel( QPainter* p, int index, const QRect& fr ); //## virtual 3.0

        void        mousePressEvent( QMouseEvent * );
        void        mouseReleaseEvent( QMouseEvent * );
        void        mouseMoveEvent( QMouseEvent * );

    private:
        void setNumLabels( int );

    private:
        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         pHeight( int i ) const;
        void        setPHeight( int i, int h );
        int         findLine( int );

        void        handleColumnResize(int, int, bool);

        int         offs;
        int         handleIdx;
        int         oldHIdxSize;
        int         moveToIdx;
        enum State { Idle, Sliding, Pressed, Moving, Blocked };
        State       state;
        QCOORD      clickPos;
        bool        trackingIsOn;
        int       cachedIdx; // not used
        int cachedPos; // not used
        Orientation orient;

        QHeaderData *d;
        friend class QTable;
        // forward compatibility, cannot add setNumLabels as public

    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QHeader( const QHeader & );
        QHeader &operator=( const QHeader & );
    #endif
    };

    inline QHeader::Orientation QHeader::orientation() const
    {
        return orient;
    }

    inline void QHeader::setTracking( bool enable ) { trackingIsOn = enable; }
    inline bool QHeader::tracking() const { return trackingIsOn; }

    #endif // QT_NO_HEADER

    #endif // QHEADER_H