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/* 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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

/* Adapted for Scribus 22.08.2003 by Franz Schmid */
/* Adapted for Scribus 15.01.2006 by Jean Ghali */

#ifndef __SCGDIPAINTER_H__
#define __SCGDIPAINTER_H__

// libart wrapper

#include <qglobal.h>
#include <qwmatrix.h>
#include <qvaluelist.h>
#include <qvaluestack.h>
#include <qcolor.h>
#include <qfont.h>
#include <qpixmap.h>
#include "scribusapi.h"
#include "scconfig.h"
#include "fpoint.h"
#include "fpointarray.h"
#include "vgradient.h"

#include "scpainterexbase.h"

#include <valarray>
#include <windows.h>

class QPainter;

#ifdef SC_USE_GDIPLUS
namespace Gdiplus
{
        class Graphics;
        class GraphicsPath;
};
#endif

// Typedef to use the GDI gradientFill function
typedef bool (STDAPICALLTYPE *gradientFillFunc) (HDC, PTRIVERTEX, ULONG, PVOID, ULONG, ULONG);  

class SCRIBUS_API ScPainterEx_GDI : public ScPainterExBase
{
public:
        ScPainterEx_GDI( HDC hDC, QRect& rect, bool gray );
        virtual ~ScPainterEx_GDI();
        virtual void begin();
        virtual void end();
        virtual void clear();
        virtual void clear( ScColorShade & );

        // matrix manipulation
        virtual void setWorldMatrix( const QWMatrix & );
        virtual const QWMatrix worldMatrix();
        virtual void setZoomFactor( double );
        virtual double zoomFactor() { return m_zoomFactor; }
        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 fillTextPath();
        virtual void strokeTextPath();
        virtual void fillPath();
        virtual void strokePath();
        virtual void setFillRule( bool fillRule );
        virtual bool fillRule() { return m_fillRule; }
        virtual void setFillMode( int fill );
        virtual void setGradient( VGradientEx::Type mode, FPoint orig, FPoint vec, FPoint foc = FPoint(0,0));
        virtual void setClipPath();

        virtual void drawImage( ScImage *image );
        virtual void setupPolygon(FPointArray *points, bool closed = true);
        virtual void setupTextPolygon(FPointArray *points);
        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 QValueList<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 QPaintDevice *device() { return m_target; }
        unsigned char *buffer() { return m_buffer; }

private:

        void drawVPath( int mode );
        void drawGradient( VGradientEx& gradient );
        void drawLinearGradient( VGradientEx& gradient, const QRect& rect );
        void drawLinearGradient_GradientFill( VGradientEx& gradient, const QRect& rect );
        void drawCircularGradient( VGradientEx& gradient, const QRect& rect );
        void drawCircleStrip( int x, int y, int w, int h, int r, int g, int b, int a );
        void drawRectangleStrip( int x, int y, int w, int h, int r, int g, int b, int a );
        void getClipPathDimensions( QRect& r );
        void transformPoint( const FPoint& in, FPoint& out );
        void transformPoints( const FPoint* in, FPoint* out, uint length );
        void loadMsImg32( void );

        unsigned int m_index;
        unsigned int m_alloccount;
        unsigned char *m_buffer;
        QPaintDevice *m_target;
        unsigned int m_width;
        unsigned int m_height;
        unsigned int m_x;
        unsigned int m_y;
        QWMatrix m_pageTrans;
        QWMatrix m_matrix;
        QFont m_font;
        bool mf_underline;
        bool mf_strikeout;
        bool mf_shadow;
        bool mf_outlined;
/* Filling */
        ScColorShade m_fill;
        double fill_trans;
        bool m_fillRule;
        int fillMode;                           // 0 = none, 1 = solid, 2 = gradient
        int gradientMode;               // 1 = linear, 2 = radial
/* Stroking */
        ScColorShade m_stroke;
        double stroke_trans;
        double LineWidth;
/* Grayscale conversion option */
        bool toGray;

/* Line End Style */
        Qt::PenCapStyle PLineEnd;
/* Line Join Style */
        Qt::PenJoinStyle PLineJoin;
/* The Dash Array */
        QValueList<double> m_array;
        double m_offset;
/* Transformation Stack */
        QValueStack<QWMatrix> MStack;
/* Zoom Factor of the Painter */
        double m_zoomFactor;

/* Some data to describe state of drawing */   
        bool pathClosed;
        bool drawingClosedCurve;
/* Drawing surface dimensions */
        double deviceDimX;
        double deviceDimY;
/* Device resolutions */
        double deviceResX;
        double deviceResY;

/* Device context */
        HDC dc;
/* Handle to a bitmap */
        HBITMAP hBmp;
/* Handle to the msimg32.dll (contains the GradientFill function) */
        HMODULE hMsImg32;
/* Address of the GradientFill function */
        gradientFillFunc gradientFill;

/* Color conversion function */
        QColor transformColor( ScColorShade& colorShade, double trans );
        void   transformImage( QImage* image, uchar* data, int scan);

#ifdef SC_USE_GDIPLUS
/* GDI+ needed data */
        QValueStack<int> gStates;
        Gdiplus::Graphics *graphics;
        Gdiplus::GraphicsPath *graphicsPath;
        double positionX;
        double positionY;
#endif
};

#endif