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# ntqheader.h

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

    /****************************************************************************
    ** $Id: qt/ntqheader.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of TQHeader widget class (table header)
    **
    ** Created : 961105
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the widgets module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQHEADER_H
    #define TQHEADER_H

    #ifndef QT_H
    #include "ntqwidget.h"
    #include "ntqstring.h"
    #include "ntqiconset.h" // conversion TQPixmap->TQIconset
    #endif // QT_H

    #ifndef TQT_NO_HEADER

    class TQShowEvent;
    class TQHeaderData;
    class TQTable;

    class TQ_EXPORT TQHeader : public TQWidget
    {
        friend class TQTable;
        friend class TQTableHeader;
        friend class TQListView;

        TQ_OBJECT
        TQ_PROPERTY( Orientation orientation READ orientation WRITE setOrientation )
        TQ_PROPERTY( bool tracking READ tracking WRITE setTracking )
        TQ_PROPERTY( int count READ count )
        TQ_PROPERTY( int offset READ offset WRITE setOffset )
        TQ_PROPERTY( bool moving READ isMovingEnabled WRITE setMovingEnabled )
        TQ_PROPERTY( bool stretching READ isStretchEnabled WRITE setStretchEnabled )

    public:
        TQHeader( TQWidget* parent=0, const char* name=0 );
        TQHeader( int, TQWidget* parent=0, const char* name=0 );
        ~TQHeader();

        int		addLabel( const TQString &, int size = -1 );
        int		addLabel( const TQIconSet&, const TQString &, int size = -1 );
        void 	removeLabel( int section );
        virtual void setLabel( int, const TQString &, int size = -1 );
        virtual void setLabel( int, const TQIconSet&, const TQString &, int size = -1 );
        TQString 	label( int section ) const;
        TQIconSet* 	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 );
        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;
        TQRect	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;

        TQSize	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, SortOrder order )
    	{ setSortIndicator( section, (order == Ascending) ); }
        int		sortIndicatorSection() const;
        SortOrder	sortIndicatorOrder() const;

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

    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
        void	sectionHandleDoubleClicked( int section );

    protected:
        void	paintEvent( TQPaintEvent * );
        void	showEvent( TQShowEvent *e );
        void 	resizeEvent( TQResizeEvent *e );
        TQRect	sRect( int index );

        virtual void paintSection( TQPainter *p, int index, const TQRect& fr);
        virtual void paintSectionLabel( TQPainter* p, int index, const TQRect& fr );

        void 	fontChange( const TQFont & );

        void	mousePressEvent( TQMouseEvent * );
        void	mouseReleaseEvent( TQMouseEvent * );
        void	mouseMoveEvent( TQMouseEvent * );
        void	mouseDoubleClickEvent( TQMouseEvent * );

        void	keyPressEvent( TQKeyEvent * );
        void	keyReleaseEvent( TQKeyEvent * );

    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 );
        TQSize	sectionSizeHint( int section, const TQFontMetrics& 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;
        TQCOORD	clickPos;
        bool	trackingIsOn;
        int oldHandleIdx;
        int	cachedPos; // not used
        Orientation orient;

        TQHeaderData *d;

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

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

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

    extern TQ_EXPORT bool tqt_qheader_label_return_null_strings; // needed for professional edition

    #endif // TQT_NO_HEADER

    #endif // TQHEADER_H