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/* libwpg
* Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
* Copyright (C) 2005 Fridrich Strba (fridrich.strba@bluewin.ch)
* Copyright (C) 2004 Marc Oude Kotte (marc@solcon.nl)
*
* 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; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02111-1301 USA
*
* For further information visit http://libwpg.sourceforge.net
*/
/* "This product is not manufactured, approved, or supported by
* Corel Corporation or Corel Corporation Limited."
*/
#ifndef __WPG2PARSER_H__
#define __WPG2PARSER_H__
#include "WPGXParser.h"
#include "WPGBrush.h"
#include "WPGPen.h"
#include <map>
#include <stack>
class WPG2TransformMatrix
{
public:
double element[3][3];
WPG2TransformMatrix()
{
// identity transformation
element[0][0] = element[1][1] = 1; element[2][2] = 1;
element[0][1] = element[0][2] = 0;
element[1][0] = element[1][2] = 0;
element[2][0] = element[2][1] = 0;
}
void transform(long& x, long& y) const
{
long rx = (long)(element[0][0]*x + element[1][0]*y + element[2][0]);
long ry = (long)(element[0][1]*x + element[1][1]*y + element[2][1]);
x = rx;
y = ry;
}
WPGPoint transform(const WPGPoint& p) const
{
WPGPoint point;
point.x = element[0][0]*p.x + element[1][0]*p.y + element[2][0];
point.y = element[0][1]*p.x + element[1][1]*p.y + element[2][1];
return point;
}
WPGRect transform(const WPGRect& r) const
{
WPGRect rect;
rect.x1 = element[0][0]*r.x1 + element[1][0]*r.y1 + element[2][0];
rect.y1 = element[0][1]*r.x1 + element[1][1]*r.y1 + element[2][1];
rect.x2 = element[0][0]*r.x2 + element[1][0]*r.y2 + element[2][0];
rect.y2 = element[0][1]*r.x2 + element[1][1]*r.y2 + element[2][1];
return rect;
}
WPG2TransformMatrix& transformBy(const WPG2TransformMatrix& m)
{
double result[3][3];
for(int i = 0; i < 3; i++)
for(int j = 0; j < 3; j++)
{
result[i][j] = 0;
for(int k = 0; k < 3; k++)
result[i][j] += m.element[i][k]*element[k][j];
}
for(int x = 0; x < 3; x++)
for(int y = 0; y < 3; y++)
element[x][y] = result[x][y];
return *this;
}
};
class WPGCompoundPolygon
{
public:
WPG2TransformMatrix matrix;
bool isFilled;
bool isFramed;
bool isClosed;
WPGCompoundPolygon(): matrix(), isFilled(true), isFramed(true), isClosed(true) {}
};
class WPGGroupContext
{
public:
unsigned subIndex;
int parentType;
WPGPath compoundPath;
WPG2TransformMatrix compoundMatrix;
bool compoundWindingRule;
bool compoundFilled;
bool compoundFramed;
bool compoundClosed;
WPGGroupContext(): subIndex(0), parentType(0),
compoundPath(), compoundMatrix(), compoundWindingRule(false),
compoundFilled(false), compoundFramed(true), compoundClosed(false) {}
bool isCompoundPolygon() const { return parentType == 0x1a; }
};
class WPG2Parser : public WPGXParser
{
public:
WPG2Parser(WPGInputStream *input, WPGPaintInterface* painter);
bool parse();
private:
void handleStartWPG();
void handleEndWPG();
void handleLayer();
void handleCompoundPolygon();
void handlePenStyleDefinition();
void handlePatternDefinition();
void handleColorPalette();
void handleDPColorPalette();
void handlePenForeColor();
void handleDPPenForeColor();
void handlePenBackColor();
void handleDPPenBackColor();
void handlePenStyle();
void handlePenSize();
void handleDPPenSize();
void handleBrushGradient();
void handleDPBrushGradient();
void handleBrushForeColor();
void handleDPBrushForeColor();
void handleBrushBackColor();
void handleDPBrushBackColor();
void handleBrushPattern();
void handlePolyline();
void handlePolycurve();
void handleRectangle();
void handleArc();
void resetPalette();
void flushCompoundPolygon();
// parsing context
bool m_success;
bool m_exit;
unsigned int m_xres;
unsigned int m_yres;
long m_xofs;
long m_yofs;
long m_width;
long m_height;
bool m_doublePrecision;
WPGPen m_pen;
WPGBrush m_brush;
std::map<unsigned int,WPGDashArray> m_penStyles;
bool m_layerOpened;
unsigned int m_layerId;
WPG2TransformMatrix m_matrix;
double m_gradientAngle;
WPGPoint m_gradientRef;
std::stack<WPGGroupContext> m_groupStack;
WPG2TransformMatrix m_compoundMatrix;
bool m_compoundWindingRule;
bool m_compoundFilled;
bool m_compoundFramed;
bool m_compoundClosed;
class ObjectCharacterization;
void parseCharacterization(ObjectCharacterization*);
};
#endif // __WPG2PARSER_H__
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