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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 _KOWMFPAINT_H_
#define _KOWMFPAINT_H_
#include <qpainter.h>
#include "kowmfread.h"
#include <../kofficecore/koffice_export.h>
/**
* KoWmfPaint inherits the abstract class KoWmfRead
* and redirects WMF actions onto a QPaintDevice.
* Uses relative or absolute coordinate.
*
* how to use:
* <pre>
* QPixmap pix( 100, 100 );
* KoWmfPaint wmf;
* if ( wmf.load( "/home/test.wmf" ) ) {
* wmf.play( pix );
* }
* paint.drawPixmap( 0, 0, pix );
* </pre>
*
*/
class KOWMF_EXPORT KoWmfPaint : public KoWmfRead
{
public:
KoWmfPaint();
~KoWmfPaint() { }
/**
* play WMF file on a QPaintDevice. Return true on success.
* Use absolute or relative coordinate :
* absolute coord. reset the world transfomation Matrix (by default)
* relative coord. use the existing world transfomation Matrix
*/
bool play( QPaintDevice& target, bool relativeCoord=false );
private:
// -------------------------------------------------------------------------
// A virtual QPainter
bool begin();
bool end();
void save();
void restore();
// Drawing tools
void setFont( const QFont& font );
// the pen : the width of the pen is in logical coordinate
void setPen( const QPen& pen );
const QPen& pen() const;
void setBrush( const QBrush& brush );
// Drawing attributes/modes
void setBackgroundColor( const QColor& c );
void setBackgroundMode( Qt::BGMode mode );
void setRasterOp( Qt::RasterOp op );
/**
* Change logical Coordinate
* some wmf files call those functions several times in the middle of a drawing
* others wmf files doesn't call setWindow* at all
* negative width and height are possible
*/
void setWindowOrg( int left, int top );
void setWindowExt( int width, int height );
// Clipping
// the 'CoordinateMode' is ommitted : always CoordPainter in wmf
// setClipRegion() is often used with save() and restore() => implement all or none
void setClipRegion( const QRegion &rec );
QRegion clipRegion();
// Graphics drawing functions
void moveTo( int x, int y );
void lineTo( int x, int y );
void drawRect( int x, int y, int w, int h );
void drawRoundRect( int x, int y, int w, int h, int = 25, int = 25 );
void drawEllipse( int x, int y, int w, int h );
void drawArc( int x, int y, int w, int h, int a, int alen );
void drawPie( int x, int y, int w, int h, int a, int alen );
void drawChord( int x, int y, int w, int h, int a, int alen );
void drawPolyline( const QPointArray& pa );
void drawPolygon( const QPointArray& pa, bool winding=FALSE );
/**
* drawPolyPolygon draw the XOR of a list of polygons
* listPa : list of polygons
*/
void drawPolyPolygon( QPtrList<QPointArray>& listPa, bool winding=FALSE );
void drawImage( int x, int y, 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 in KWinMetaFile
void drawText( int x, int y, int w, int h, int flags, const QString &s, double rotation );
// matrix transformation : only used in some bitmap manipulation
void setWorldMatrix( const QWMatrix &, bool combine=FALSE );
private:
QPainter mPainter;
QPaintDevice *mTarget;
bool mRelativeCoord;
// memorisation of WMF matrix transformation (in relative coordinate)
QWMatrix mInternalWorldMatrix;
};
#endif
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