src/util/box.h

   1 #ifndef EL__UTIL_BOX_H
   2 #define EL__UTIL_BOX_H
   3
   4 struct box {
   5         int x;
   6         int y;
   7         int width;
   8         int height;
   9 };
  10
  11 static inline int
  12 is_in_box(struct box *box, int x, int y)
  13 {
  14         return (x >= box->x && y >= box->y
  15                 && x < box->x + box->width
  16                 && y < box->y + box->height);
  17 }
  18
  19 static inline int
  20 row_is_in_box(struct box *box, int y)
  21 {
  22         return (y >= box->y && y < box->y + box->height);
  23 }
  24
  25 static inline int
  26 col_is_in_box(struct box *box, int x)
  27 {
  28         return (x >= box->x && x < box->x + box->width);
  29 }
  30
  31 /* Mainly intended for use with double-width characters.  */
  32 static inline int
  33 colspan_is_in_box(struct box *box, int x, int span)
  34 {
  35         return (x >= box->x && x + span <= box->x + box->width);
  36 }
  37
  38
  39 static inline void
  40 set_box(struct box *box, int x, int y, int width, int height)
  41 {
  42         box->x = x;
  43         box->y = y;
  44         box->width = width;
  45         box->height = height;
  46 }
  47
  48 static inline void
  49 copy_box(struct box *dst, struct box *src)
  50 {
  51         copy_struct(dst, src);
  52 }
  53
  54 #define dbg_show_box(box) DBG("x=%i y=%i width=%i height=%i", (box)->x, (box)->y, (box)->width, (box)->height)
  55 #define dbg_show_xy(x_, y_) DBG("x=%i y=%i", x_, y_)
  56
  57
  58 #endif