vpainter.h

/* This file is part of the KDE project
   Copyright (C) 2001, The Karbon Developers
   Copyright (C) 2002, The Karbon Developers
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   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 __VPAINTER_H__
#define __VPAINTER_H__
 
// painter abstraction
 
#include <tqnamespace.h>
#include <KoRect.h>
#include <vfillrule.h>
 
class TQWMatrix;
class TQPaintDevice;
class TQColor;
class TQPen;
class TQBrush;
class TQImage;
 
class VStroke;
class VFill;
 
class KoPoint;
class KoRect;
 
class VPainter
{
public:
    VPainter( TQPaintDevice *, unsigned int /*w*/ = 0, unsigned int /*h*/ = 0 ) {};
    virtual ~VPainter() {};
 
    //
    virtual void resize( unsigned int w, unsigned int h ) = 0;
    virtual void begin() = 0;
    virtual void end() = 0;
    virtual void blit( const KoRect & ) = 0;
    virtual void clear( const TQColor & ) = 0;
    virtual void clear( const KoRect &, const TQColor & ) = 0;
 
    // matrix manipulation
    virtual void setWorldMatrix( const TQWMatrix & ) = 0;
    virtual const TQWMatrix worldMatrix() = 0;
    virtual void setZoomFactor( double ) = 0;
    virtual double zoomFactor() { return 1.0; }
 
    // drawing
    virtual void moveTo( const KoPoint & ) = 0;
    virtual void lineTo( const KoPoint & ) = 0;
    virtual void curveTo( const KoPoint &, const KoPoint &, const KoPoint & ) = 0;
    virtual void newPath() = 0;
    virtual void strokePath() = 0;
    virtual void fillPath() = 0;
    virtual void setFillRule( VFillRule ) = 0;
    virtual void setClipPath() = 0;
    virtual void resetClipPath() = 0;
 
    // helper
    virtual void drawNode( const KoPoint& , int ) {}
    virtual void drawRect( const KoRect & ) {}
    virtual void drawRect( double, double, double, double ) {}
 
    // pen + brush
    virtual void setPen( const VStroke & ) = 0;
    // compatibility, use VPen/VBrush later ?
    virtual void setPen( const TQColor & ) = 0;
    virtual void setPen( TQt::PenStyle style ) = 0;
    virtual void setBrush( const VFill & ) = 0;
    virtual void setBrush( const TQColor & ) = 0;
    virtual void setBrush( TQt::BrushStyle style ) = 0;
 
    virtual void drawImage( const TQImage &, const TQWMatrix & ) {}
 
    // stack management
    virtual void save() = 0;
    virtual void restore() = 0;
 
    // we have to see how this fits in
    virtual void setRasterOp( TQt::RasterOp ) = 0;
 
    // access to device
    virtual TQPaintDevice *device() = 0;
};
 
#endif