include/path.h

   1 /*
   2  * Graphics paths (BeginPath, EndPath etc.)
   3  *
   4  * Copyright 1997, 1998 Martin Boehme
   5  */
   6
   7 #ifndef __WINE_PATH_H
   8 #define __WINE_PATH_H
   9
  10 #include "windef.h"
  11
  12 /* It should not be necessary to access the contents of the GdiPath
  13  * structure directly; if you find that the exported functions don't
  14  * allow you to do what you want, then please place a new exported
  15  * function that does this job in path.c.
  16  */
  17
  18 typedef enum tagGdiPathState
  19 {
  20    PATH_Null,
  21    PATH_Open,
  22    PATH_Closed
  23 } GdiPathState;
  24
  25 typedef struct tagGdiPath
  26 {
  27    GdiPathState state;
  28    POINT      *pPoints;
  29    BYTE         *pFlags;
  30    int          numEntriesUsed, numEntriesAllocated;
  31    BOOL       newStroke;
  32 } GdiPath;
  33
  34 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
  35 /* Returns TRUE if the specified path is in the open state, i.e. in the
  36  * state where points will be added to the path, or FALSE otherwise. This
  37  * function is implemented as a macro for performance reasons.
  38  */
  39
  40 extern void   PATH_InitGdiPath(GdiPath *pPath);
  41 extern void   PATH_DestroyGdiPath(GdiPath *pPath);
  42 extern BOOL PATH_AssignGdiPath(GdiPath *pPathDest,
  43    const GdiPath *pPathSrc);
  44
  45 struct tagDC;
  46
  47 extern BOOL PATH_MoveTo(struct tagDC *dc);
  48 extern BOOL PATH_LineTo(struct tagDC *dc, INT x, INT y);
  49 extern BOOL PATH_Rectangle(struct tagDC *dc, INT x1, INT y1,
  50    INT x2, INT y2);
  51 extern BOOL PATH_Ellipse(struct tagDC *dc, INT x1, INT y1,
  52    INT x2, INT y2);
  53 extern BOOL PATH_Arc(struct tagDC *dc, INT x1, INT y1, INT x2, INT y2,
  54    INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
  55 extern BOOL PATH_PolyBezierTo(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  56 extern BOOL PATH_PolyBezier(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  57 extern BOOL PATH_PolylineTo(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  58 extern BOOL PATH_Polyline(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  59 extern BOOL PATH_Polygon(struct tagDC *dc, const POINT *pt, DWORD cbCount);
  60 extern BOOL PATH_PolyPolyline(struct tagDC *dc, const POINT *pt, const DWORD *counts,
  61                               DWORD polylines);
  62 extern BOOL PATH_PolyPolygon(struct tagDC *dc, const POINT *pt, const INT *counts,
  63                              UINT polygons);
  64 extern BOOL PATH_RoundRect(struct tagDC *dc, INT x1, INT y1, INT x2, INT y2, INT ell_width,
  65                                 INT ell_height);
  66 extern BOOL PATH_AddEntry(GdiPath *pPath, const POINT *pPoint, BYTE flags);
  67 #endif /* __WINE_PATH_H */
  68
  69