include/dflat32/rect.h

   1 /* ----------- rect.h ------------ */
   2 #ifndef RECT_H
   3 #define RECT_H
   4
   5 typedef struct    {
   6     int lf,tp,rt,bt;
   7 } DFRECT;
   8 #define within(p,v1,v2)   ((p)>=(v1)&&(p)<=(v2))
   9 #define RectTop(r)        (r.tp)
  10 #define RectBottom(r)     (r.bt)
  11 #define RectLeft(r)       (r.lf)
  12 #define RectRight(r)      (r.rt)
  13 #define InsideRect(x,y,r) (within((x),RectLeft(r),RectRight(r))\
  14                                &&                              \
  15                           within((y),RectTop(r),RectBottom(r)))
  16 #define ValidRect(r)      (RectRight(r) || RectLeft(r) || \
  17                            RectTop(r) || RectBottom(r))
  18 #define RectWidth(r)      (RectRight(r)-RectLeft(r)+1)
  19 #define RectHeight(r)     (RectBottom(r)-RectTop(r)+1)
  20 DFRECT subRectangle(DFRECT, DFRECT);
  21 DFRECT ClientRect(void *);
  22 DFRECT RelativeWindowRect(void *, DFRECT);
  23 DFRECT ClipRectangle(void *, DFRECT);
  24 #endif