include/path.h

   1 /*
   2  * Graphics paths (BeginPath, EndPath etc.)
   3  *
   4  * Copyright 1997, 1998 Martin Boehme
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __WINE_PATH_H
  22 #define __WINE_PATH_H
  23
  24 #include "windef.h"
  25
  26 /* It should not be necessary to access the contents of the GdiPath
  27  * structure directly; if you find that the exported functions don't
  28  * allow you to do what you want, then please place a new exported
  29  * function that does this job in path.c.
  30  */
  31
  32 typedef enum tagGdiPathState
  33 {
  34    PATH_Null,
  35    PATH_Open,
  36    PATH_Closed
  37 } GdiPathState;
  38
  39 typedef struct tagGdiPath
  40 {
  41    GdiPathState state;
  42    POINT      *pPoints;
  43    BYTE         *pFlags;
  44    int          numEntriesUsed, numEntriesAllocated;
  45    BOOL       newStroke;
  46 } GdiPath;
  47
  48 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
  49 /* Returns TRUE if the specified path is in the open state, i.e. in the
  50  * state where points will be added to the path, or FALSE otherwise. This
  51  * function is implemented as a macro for performance reasons.
  52  */
  53
  54 extern void   PATH_InitGdiPath(GdiPath *pPath);
  55 extern void   PATH_DestroyGdiPath(GdiPath *pPath);
  56 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest,
  57    const GdiPath *pPathSrc);
  58
  59 struct tagDC;
  60
  61 extern BOOL PATH_MoveTo(struct tagDC *dc);
  62 extern BOOL PATH_LineTo(struct tagDC *dc, INT x, INT y);
  63 extern BOOL PATH_Rectangle(struct tagDC *dc, INT x1, INT y1,
  64    INT x2, INT y2);
  65 extern BOOL PATH_Ellipse(struct tagDC *dc, INT x1, INT y1,
  66    INT x2, INT y2);
  67 extern BOOL PATH_Arc(struct tagDC *dc, INT x1, INT y1, INT x2, INT y2,
  68    INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
  69 extern BOOL PATH_PolyBezierTo(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  70 extern BOOL PATH_PolyBezier(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  71 extern BOOL PATH_PolylineTo(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  72 extern BOOL PATH_Polyline(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  73 extern BOOL PATH_Polygon(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  74 extern BOOL PATH_PolyPolyline(struct tagDC *dc, const POINT *pt, const DWORD *counts,
  75                               DWORD polylines);
  76 extern BOOL PATH_PolyPolygon(struct tagDC *dc, const POINT *pt, const INT *counts,
  77                              UINT polygons);
  78 extern BOOL PATH_RoundRect(struct tagDC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width,
  79                                 INT ell_height);
  80 extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
  81 #endif /* __WINE_PATH_H */
  82
  83