qheader.h

/****************************************************************************
** $Id: qheader.h,v 2.20.2.2 1998/08/21 19:13:25 hanord Exp $
**
** Definition of QHeader widget class (table header)
**
** Created : 961105
**
** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
**
** This file is part of Qt Free Edition, version 1.42.
**
** See the file LICENSE included in the distribution for the usage
** and distribution terms, or http://www.troll.no/free-license.html.
**
** IMPORTANT NOTE: You may NOT copy this file or any part of it into
** your own programs or libraries.
**
** Please see http://www.troll.no/pricing.html for information about 
** Qt Professional Edition, which is this same library but with a
** license which allows creation of commercial/proprietary software.
**
*****************************************************************************/

#ifndef QHEADER_H
#define QHEADER_H

#ifndef QT_H
#include "qtableview.h"
#endif // QT_H

struct QHeaderData;

class Q_EXPORT QHeader : public QTableView
{
    Q_OBJECT
public:
    enum Orientation { Horizontal, Vertical };

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

    int         addLabel( const char *, int size = -1 );
    void        setLabel( int, const char *, int size = -1 );
    const char* label( int );
    void        setOrientation( Orientation );
    Orientation orientation() const;
    void        setTracking( bool enable );
    bool        tracking() const;

    void        setClickEnabled( bool, int logIdx = -1 );
    void        setResizeEnabled( bool, int logIdx = -1 );
    void        setMovingEnabled( bool );

    void        setCellSize( int i, int s );
    int         cellSize( int i ) const;
    int         cellPos( int i ) const;
    int         cellAt( int i ) const;
    int         count() const;

    int         offset() const;

    QSize       sizeHint() const;

    int         mapToLogical( int ) const;
    int         mapToActual( int ) const;

public slots:
    void        setOffset( int );

signals:
    void        sectionClicked( int );
    void        sizeChange( int section, int oldSize, int newSize );
    void        moved( int from, int to );
protected:
    //    void  timerEvent( QTimerEvent * );

    void        resizeEvent( QResizeEvent * );

    QRect       sRect( int i );

    void        paintCell( QPainter *, int, int );
    void        setupPainter( QPainter * );

    int         cellHeight( int );
    int         cellWidth( int );

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

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         findLine( int );

    void        handleColumnResize(int, int, bool);

    void        moveAround( int fromIdx, int toIdx );

    int         handleIdx;
    int         oldHIdxSize;
    int         moveToIdx;
    enum State { Idle, Sliding, Pressed, Moving, Blocked };
    State       state;
    QCOORD      clickPos;
    bool        trackingIsOn;

    Orientation orient;

    QHeaderData *data;

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 //QHEADER_H