scpainterex_ps2.h

/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/* This file is part of the KDE project
   Copyright (C) 2001, 2002, 2003 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.
*/
/* Adapted for Scribus 22.08.2003 by Franz Schmid */
/* Adapted for Scribus 15.01.2006 by Jean Ghali */

#ifndef __SCPAINTEREX_PS2_H__
#define __SCPAINTEREX_PS2_H__

// libart wrapper

#include <QGlobalStatic>
#include <QColor>
#include <QFont>
#include <QTransform>
#include <QList>
#include <QPixmap>
#include <QStack>
#include <QTextStream>

#include "scribusapi.h"
#include "scconfig.h"
#include "colormgmt/sccolormgmtengine.h"
#include "fpoint.h"
#include "fpointarray.h"
#include "vgradient.h"
#include "scpainterexbase.h"

class ScribusDoc;

class ScPs2OutputParams
{
public:
    ScPs2OutputParams(ScribusDoc* doc = NULL);
    ScPainterExBase::ColorMode colorMode;
    ScribusDoc* document;
    bool reloadImages;
    int resolution;
    bool useProfiles;
    bool toGray;
    bool mirrorH;
    bool mirrorV;
    QString outputProfile;
    ScColorProfile   hProfile;
    ScColorTransform rgbToOutputColorTransform;
    ScColorTransform rgbToOutputImageTransform;
    ScColorTransform cmykToOutputColorTransform;
    ScColorTransform cmykToOutputImageTransform;
};

class SCRIBUS_API ScPainterEx_Ps2 : public ScPainterExBase
{
public:

    ScPainterEx_Ps2( QIODevice* iodev, QRect& rect, ScPs2OutputParams& options );
    virtual ~ScPainterEx_Ps2();

    virtual int supportedColorModes() { return (int) (rgbMode|cmykMode); }
    virtual ColorMode preferredColorMode() { return m_colorMode; }
    virtual void setPreferredColorMode(ScPainterEx_Ps2::ColorMode colorMode) { m_colorMode = colorMode; }
    virtual ImageMode imageMode();

    virtual void begin();
    virtual void end();
    virtual void clear();
    virtual void clear( ScColorShade & );

    // matrix manipulation
    virtual void setWorldMatrix( const QTransform & );
    virtual const QTransform worldMatrix();
    virtual void translate( double, double );
    virtual void rotate( double );
    virtual void scale( double, double );

    // drawing
    virtual void moveTo( const double &, const double & );
    virtual void lineTo( const double &, const double & );
    virtual void curveTo( FPoint p1, FPoint p2, FPoint p3 );
    virtual void newPath();
    virtual void closePath();
    virtual void fillPath();
    virtual void strokePath();
    virtual void setFillRule( bool fillRule );
    virtual bool fillRule() { return m_fillRule; }
    virtual void setFillMode( int fill );
    virtual int  fillMode() { return m_fillMode; }
    virtual void setStrokeMode( int fill );
    virtual int  strokeMode() { return m_strokeMode; }
    virtual void setGradient( VGradientEx::Type mode, FPoint orig, FPoint vec, FPoint foc, double scale, double skew);
    virtual void setPattern(ScPattern *pattern, double scaleX, double scaleY, double offsetX, double offsetY, double rotation, double skewX, double skewY, bool mirrorX, bool mirrorY);

    virtual void setMaskMode( int mask ) {};
    virtual void setGradientMask(VGradientEx::Type mode, FPoint orig, FPoint vec, FPoint foc, double scale, double skew) {};
    virtual void setPatternMask(ScPattern *pattern, double scaleX, double scaleY, double offsetX, double offsetY, double rotation, double skewX, double skewY, bool mirrorX, bool mirrorY) {};

    virtual void set4ColorGeometry(FPoint p1, FPoint p2, FPoint p3, FPoint p4, FPoint c1, FPoint c2, FPoint c3, FPoint c4) {};
    virtual void set4ColorColors(const ScColorShade& col1, const ScColorShade& col2, const ScColorShade& col3, const ScColorShade& col4) {};
    virtual void setDiamondGeometry(FPoint p1, FPoint p2, FPoint p3, FPoint p4, FPoint c1, FPoint c2, FPoint c3, FPoint c4, FPoint c5) {};
    virtual void setMeshGradient(FPoint p1, FPoint p2, FPoint p3, FPoint p4, QList<QList<meshPoint> > meshArray) {};
    virtual void setMeshGradient(FPoint p1, FPoint p2, FPoint p3, FPoint p4, QList<meshGradientPatch> meshPatches) {};

    virtual void setClipPath();

    virtual void drawImage( ScImage *image, ScPainterExBase::ImageMode mode );
    virtual void drawRGBImage_ps2( ScImage *image );
    virtual void drawCMYKImage_ps2( ScImage *image );

    virtual bool hasAlphaChannel( ScImage* image );

    virtual void setupPolygon(FPointArray *points, bool closed = true);
    virtual void drawPolygon();
    virtual void drawPolyLine();
    virtual void drawLine(FPoint start, FPoint end);
    virtual void drawRect(double, double, double, double);

    // pen + brush
    virtual ScColorShade pen();
    virtual ScColorShade brush();
    virtual void setPen( const ScColorShade & );
    virtual void setPen( const ScColorShade &c, double w, Qt::PenStyle st, Qt::PenCapStyle ca, Qt::PenJoinStyle jo );
    virtual void setPenOpacity( double op );
    virtual void setLineWidth( double w);
    virtual void setDash(const QVector<double>& array, double ofs);
    virtual void setBrush( const ScColorShade & );
    virtual void setBrushOpacity( double op );
    virtual void setOpacity( double op );
    virtual void setFont( const QFont &f );
    virtual QFont font();

    // stack management
    virtual void save();
    virtual void restore();

    virtual void setRasterOp( int op );
    virtual void setBlendModeFill( int blendMode ) {};
    virtual void setBlendModeStroke( int blendMode ) {};

protected:

    virtual void writeRGBImageToStream_Ascii85 ( ScImage* image );
    virtual void writeRGBImageToStream_AsciiHex ( ScImage* image );
    virtual void writeCMYKImageToStream_Ascii85( ScImage* image );
    virtual void writeCMYKImageToStream_AsciiHex( ScImage* image );
    virtual void writeMaskToStream ( QImage* image ); 

private:

    typedef enum {
        Ascii85Encoding,
        AsciiHexEncoding
    } AsciiEncoding;

    /* Output stream */
    QTextStream   m_stream;
    ColorMode     m_colorMode;
    AsciiEncoding m_encoding; 

    /* Path bounding boxes*/
    QRect m_pathBBox;
    QRect m_clipBBox;

    /* General output options */
    ScPs2OutputParams m_options;

    /* Basic drawing functions*/
    void drawVPath( int mode );
    void drawGradient( VGradientEx& gradient );
    void drawLinearGradient( VGradientEx& gradient, const QRect& rect );
    void drawLinearGradient_RGB( VGradientEx& gradient, const QRect& rect );
    void drawLinearGradient_CMYK( VGradientEx& gradient, const QRect& rect );
    void drawCircularGradient( VGradientEx& gradient, const QRect& rect );
    void drawCircularGradient_RGB( VGradientEx& gradient, const QRect& rect );
    void drawCircularGradient_CMYK( VGradientEx& gradient, const QRect& rect );
    void getPathBoundingBox( FPointArray* points, QRect& r );
    void transformPoint( const FPoint& in, FPoint& out );
    void transformPoints( const FPoint* in, FPoint* out, uint length );

    void putColor( ScColorShade& colorShade, bool doFill );

    unsigned int m_width;
    unsigned int m_height;
    unsigned int m_x;
    unsigned int m_y;
    QTransform m_pageTrans;
    QTransform m_matrix;
    QFont m_font;
/* Filling */
    ScColorShade m_fillColor;
    double m_fillTrans;
    bool   m_fillRule;
    int    m_fillMode;          // 0 = none, 1 = solid, 2 = gradient

    double m_patternScaleX;
    double m_patternScaleY;
    double m_patternOffsetX;
    double m_patternOffsetY;
    double m_patternRotation;
    double m_patternSkewX;
    double m_patternSkewY;
    bool   m_patternMirrorX;
    bool   m_patternMirrorY;

/* Stroking */
    ScColorShade m_strokeColor;
    double m_strokeTrans;
    double m_lineWidth;
    int    m_strokeMode;                // 0 = none, 1 = solid, 2 = gradient 3 = pattern
/* Line End Style */
    Qt::PenCapStyle m_lineEnd;
/* Line Join Style */
    Qt::PenJoinStyle m_lineJoin;
/* The Dash Array */
    QVector<double> m_array;
    double m_offset;
/* Transformation Stack */
    QStack<QTransform> m_stack;

/* Some data to describe state of drawing */    
    bool m_pathIsClosed;
    bool m_drawingClosedPath;
/* Drawing surface dimensions */
    double m_deviceDimX;
    double m_deviceDimY;
/* Device resolutions */
    double m_deviceResX;
    double m_deviceResY;

/* Color conversion function */
    void   transformImage( QImage* image, uchar* data, int scan);
};

#endif