wine/include/path.h

/*
 * Graphics paths (BeginPath, EndPath etc.)
 *
 * Copyright 1997, 1998 Martin Boehme
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __WINE_PATH_H
#define __WINE_PATH_H

#include "windef.h"

/* It should not be necessary to access the contents of the GdiPath
 * structure directly; if you find that the exported functions don't
 * allow you to do what you want, then please place a new exported
 * function that does this job in path.c.
 */

typedef enum tagGdiPathState
{
   PATH_Null,
   PATH_Open,
   PATH_Closed
} GdiPathState;

typedef struct tagGdiPath
{
   GdiPathState state;
   POINT      *pPoints;
   BYTE         *pFlags;
   int          numEntriesUsed, numEntriesAllocated;
   BOOL       newStroke;
} GdiPath;

#define PATH_IsPathOpen(path) ((path).state==PATH_Open)
/* Returns TRUE if the specified path is in the open state, i.e. in the
 * state where points will be added to the path, or FALSE otherwise. This
 * function is implemented as a macro for performance reasons.
 */

extern void   PATH_InitGdiPath(GdiPath *pPath);
extern void   PATH_DestroyGdiPath(GdiPath *pPath);
extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest,
   const GdiPath *pPathSrc);

struct tagDC;

extern BOOL PATH_MoveTo(struct tagDC *dc);
extern BOOL PATH_LineTo(struct tagDC *dc, INT x, INT y);
extern BOOL PATH_Rectangle(struct tagDC *dc, INT x1, INT y1,
   INT x2, INT y2);
extern BOOL PATH_Ellipse(struct tagDC *dc, INT x1, INT y1,
   INT x2, INT y2);
extern BOOL PATH_Arc(struct tagDC *dc, INT x1, INT y1, INT x2, INT y2,
   INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
extern BOOL PATH_PolyBezierTo(struct tagDC *dc, const POINT *pt, DWORD cbCount);
extern BOOL PATH_PolyBezier(struct tagDC *dc, const POINT *pt, DWORD cbCount);
extern BOOL PATH_PolylineTo(struct tagDC *dc, const POINT *pt, DWORD cbCount);
extern BOOL PATH_Polyline(struct tagDC *dc, const POINT *pt, DWORD cbCount);
extern BOOL PATH_Polygon(struct tagDC *dc, const POINT *pt, DWORD cbCount);
extern BOOL PATH_PolyPolyline(struct tagDC *dc, const POINT *pt, const DWORD *counts,
			      DWORD polylines);
extern BOOL PATH_PolyPolygon(struct tagDC *dc, const POINT *pt, const INT *counts,
			     UINT polygons);
extern BOOL PATH_RoundRect(struct tagDC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width,
				INT ell_height);
extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
#endif /* __WINE_PATH_H */