Dogcows Code - chaz/openbox/blob - openbox/snap.c

   1 #include "client.h"
   2 #include "frame.h"
   3 #include "stacking.h"
   4 #include "screen.h"
   5
   6 static int resistance = 10;
   7
   8 void snap_move(Client *c, int *x, int *y, int w, int h)
   9 {
  10     GList *it;
  11     Rect *area;
  12     int l, t, r, b; /* requested edges */
  13     int al, at, ar, ab; /* screen area edges */
  14     int cl, ct, cr, cb; /* current edges */
  15
  16     /* add the frame to the dimensions */
  17     l = *x;
  18     t = *y;
  19     r = l + w - 1;
  20     b = t + h - 1;
  21
  22     cl = c->frame->area.x;
  23     ct = c->frame->area.y;
  24     cr = cl + c->frame->area.width - 1;
  25     cb = ct + c->frame->area.height - 1;
  26
  27     /* snap to other clients */
  28     for (it = stacking_list; it != NULL; it = it->next) {
  29         /* XXX foo */
  30     }
  31
  32     /* get the screen boundaries */
  33     area = screen_area(c->desktop);
  34     al = area->x;
  35     at = area->y;
  36     ar = al + area->width - 1;
  37     ab = at + area->height - 1;
  38
  39     /* snap to screen edges */
  40     if (cl >= al && l < al && l >= al - resistance)
  41         *x = al;
  42     else if (cr <= ar && r > ar && r <= ar + resistance)
  43             *x = ar - w + 1;
  44     if (ct >= at && t < at && t >= at - resistance)
  45         *y = at;
  46     else if (cb <= ab && b > ab && b < ab + resistance)
  47         *y = ab - h + 1;
  48 }