F:/KPlato/koffice/libs/kwmf/kowmfwrite.h

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/* This file is part of the KDE libraries
   Copyright (c) 2003 thierry lorthiois (lorthioist@wanadoo.fr)

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
#ifndef _KOWMFWRITE_H_
#define _KOWMFWRITE_H_

#include <QPen>
#include <QBrush>
#include <QColor>
#include <QFont>
#include <QRect>
#include <QBuffer>
#include <qregion.h>
#include <QString>
#include <QMatrix>
#include <QImage>
#include <q3ptrlist.h>
#include <q3pointarray.h>
#include <koffice_export.h>
#include <QPainter>
class KoWmfWritePrivate;

class KOWMF_EXPORT KoWmfWrite
{
public:
    KoWmfWrite( const QString& fileName );
    virtual ~KoWmfWrite();


    // -------------------------------------------------------------------------
    // virtual Painter
    // for a good documentation : check QPainter documentation
    bool  begin();
    bool  end();
    void  save();
    void  restore();

    void setDefaultDpi( int dpi );

    // Drawing tools
    void  setFont( const QFont& f );
    // the width of the pen is in logical coordinate
    void  setPen( const QPen& p );
    void  setBrush( const QBrush& b );

    // Drawing attributes/modes
    void  setBackgroundColor( const QColor& r );
    void  setBackgroundMode( Qt::BGMode );
    void  setCompositionMode( QPainter::CompositionMode );

    // Change logical Coordinate
    void  setWindow( int left, int top , int width, int height );

    // Clipping
    // the 'CoordinateMode' parameter is ommitted : always CoordPainter in wmf
    // not yet implemented
    void  setClipRegion( const QRegion& r );
    void  clipping( bool enable );

    // Graphics drawing functions
    void  moveTo( int left, int top );
    void  lineTo( int left, int top );
    void  drawRect( int left, int top, int width, int height );
    void  drawRoundRect( int left, int top, int width, int height, int = 25, int = 25 );
    void  drawEllipse( int left, int top, int width, int height );
    void  drawArc( int left, int top, int width, int height, int a, int alen );
    void  drawPie( int left, int top, int width, int height, int a, int alen );
    void  drawChord( int left, int top, int width, int height, int a, int alen );
    void  drawPolyline( const QPolygon& pa );
    void  drawPolygon( const QPolygon& pa, bool winding=false );
    // drawPolyPolygon draw the XOR of a list of polygons
    // listPa : list of polygons
    void  drawPolyPolygon( Q3PtrList<QPolygon>& listPa, bool winding=false );
    void  drawImage( int left, int top, const QImage &, int sx = 0, int sy = 0, int sw = -1, int sh = -1 );

    // Text drawing functions
    // rotation = the degrees of rotation in counterclockwise
    // not yet implemented
    void  drawText( int x, int y, int w, int h, int flags, const QString &s, double rotation );

private:
    //-----------------------------------------------------------------------------
    // Utilities and conversion Qt --> Wmf

    void pointArray( const QPolygon& pa );

    quint32 winColor( QColor color );

    void angleToxy( int& xStart, int& yStart, int& xEnd, int& yEnd, int a, int alen );

    quint16 qtRasterToWin16( QPainter::CompositionMode op ) const;
    quint32 qtRasterToWin32( QPainter::CompositionMode op ) const;


private:
    KoWmfWritePrivate *d;

};

#endif

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