/usr/include/poppler/splash/SplashPath.h is in libpoppler-dev 0.18.4-1ubuntu3.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// SplashPath.h
//
//========================================================================
#ifndef SPLASHPATH_H
#define SPLASHPATH_H
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include "SplashTypes.h"
//------------------------------------------------------------------------
// SplashPathPoint
//------------------------------------------------------------------------
struct SplashPathPoint {
SplashCoord x, y;
};
//------------------------------------------------------------------------
// SplashPath.flags
//------------------------------------------------------------------------
// first point on each subpath sets this flag
#define splashPathFirst 0x01
// last point on each subpath sets this flag
#define splashPathLast 0x02
// if the subpath is closed, its first and last points must be
// identical, and must set this flag
#define splashPathClosed 0x04
// curve control points set this flag
#define splashPathCurve 0x08
//------------------------------------------------------------------------
// SplashPathHint
//------------------------------------------------------------------------
struct SplashPathHint {
int ctrl0, ctrl1;
int firstPt, lastPt;
};
//------------------------------------------------------------------------
// SplashPath
//------------------------------------------------------------------------
class SplashPath {
public:
// Create an empty path.
SplashPath();
// Copy a path.
SplashPath *copy() { return new SplashPath(this); }
~SplashPath();
// Append <path> to <this>.
void append(SplashPath *path);
// Start a new subpath.
SplashError moveTo(SplashCoord x, SplashCoord y);
// Add a line segment to the last subpath.
SplashError lineTo(SplashCoord x, SplashCoord y);
// Add a third-order (cubic) Bezier curve segment to the last
// subpath.
SplashError curveTo(SplashCoord x1, SplashCoord y1,
SplashCoord x2, SplashCoord y2,
SplashCoord x3, SplashCoord y3);
// Close the last subpath, adding a line segment if necessary.
SplashError close();
// Add a stroke adjustment hint. The controlling segments are
// <ctrl0> and <ctrl1> (where segments are identified by their first
// point), and the points to be adjusted are <firstPt> .. <lastPt>.
void addStrokeAdjustHint(int ctrl0, int ctrl1, int firstPt, int lastPt);
// Add (<dx>, <dy>) to every point on this path.
void offset(SplashCoord dx, SplashCoord dy);
// Get the points on the path.
int getLength() { return length; }
void getPoint(int i, double *x, double *y, Guchar *f)
{ *x = pts[i].x; *y = pts[i].y; *f = flags[i]; }
// Get the current point.
GBool getCurPt(SplashCoord *x, SplashCoord *y);
protected:
SplashPath(SplashPath *path);
void grow(int nPts);
GBool noCurrentPoint() { return curSubpath == length; }
GBool onePointSubpath() { return curSubpath == length - 1; }
GBool openSubpath() { return curSubpath < length - 1; }
SplashPathPoint *pts; // array of points
Guchar *flags; // array of flags
int length, size; // length/size of the pts and flags arrays
int curSubpath; // index of first point in last subpath
SplashPathHint *hints; // list of hints
int hintsLength, hintsSize;
friend class SplashXPath;
friend class Splash;
// this is a temporary hack, until we read FreeType paths directly
friend class ArthurOutputDev;
};
#endif
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