//========================================================================//// SplashXPath.h////========================================================================#ifndef SPLASHXPATH_H#define SPLASHXPATH_H#include <aconf.h>#ifdef USE_GCC_PRAGMAS#pragma interface#endif#include "SplashTypes.h"class SplashPath;struct SplashXPathAdjust;//------------------------------------------------------------------------#define splashMaxCurveSplits (1 << 10)//------------------------------------------------------------------------// SplashXPathSeg//------------------------------------------------------------------------struct SplashXPathSeg {  SplashCoord x0, y0;		// first endpoint  SplashCoord x1, y1;		// second endpoint  SplashCoord dxdy;		// slope: delta-x / delta-y  SplashCoord dydx;		// slope: delta-y / delta-x  Guint flags;};#define splashXPathFirst   0x01	// first segment of a subpath#define splashXPathLast    0x02	// last segment of a subpath#define splashXPathEnd0    0x04	// first endpoint is end of an open subpath#define splashXPathEnd1    0x08 // second endpoint is end of an open subpath#define splashXPathHoriz   0x10 // segment is vertical (y0 == y1)				//   (dxdy is undef)#define splashXPathVert    0x20 // segment is horizontal (x0 == x1)				//   (dydx is undef)#define splashXPathFlip	   0x40	// y0 > y1//------------------------------------------------------------------------// SplashXPath//------------------------------------------------------------------------class SplashXPath {public:  // Expands (converts to segments) and flattens (converts curves to  // lines) <path>.  Transforms all points from user space to device  // space, via <matrix>.  If <closeSubpaths> is true, closes all open  // subpaths.  SplashXPath(SplashPath *path, SplashCoord *matrix,	      SplashCoord flatness, GBool closeSubpaths);  // Copy an expanded path.  SplashXPath *copy() { return new SplashXPath(this); }  ~SplashXPath();  // Multiply all coordinates by splashAASize, in preparation for  // anti-aliased rendering.  void aaScale();  // Sort by upper coordinate (lower y), in y-major order.  void sort();private:  SplashXPath();  SplashXPath(SplashXPath *xPath);  void transform(SplashCoord *matrix, SplashCoord xi, SplashCoord yi,		 SplashCoord *xo, SplashCoord *yo);  void strokeAdjust(SplashXPathAdjust *adjust,		    SplashCoord *xp, SplashCoord *yp);  void grow(int nSegs);  void addCurve(SplashCoord x0, SplashCoord y0,		SplashCoord x1, SplashCoord y1,		SplashCoord x2, SplashCoord y2,		SplashCoord x3, SplashCoord y3,		SplashCoord flatness,		GBool first, GBool last, GBool end0, GBool end1);  void addSegment(SplashCoord x0, SplashCoord y0,		  SplashCoord x1, SplashCoord y1,		  GBool first, GBool last, GBool end0, GBool end1);  SplashXPathSeg *segs;  int length, size;		// length and size of segs array  friend class SplashXPathScanner;  friend class SplashClip;  friend class Splash;};#endif