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

   1 #include "client.h"
   2 #include "frame.h"
   3 #include "stacking.h"
   4 #include "screen.h"
   5 #include "config.h"
   6 #include "parser/parse.h"
   7
   8 #include <glib.h>
   9
  10 void resist_move_windows(ObClient *c, gint *x, gint *y)
  11 {
  12     GList *it;
  13     gint l, t, r, b; /* requested edges */
  14     gint cl, ct, cr, cb; /* current edges */
  15     gint w, h; /* current size */
  16     ObClient *snapx = NULL, *snapy = NULL;
  17
  18     w = c->frame->area.width;
  19     h = c->frame->area.height;
  20
  21     l = *x;
  22     t = *y;
  23     r = l + w - 1;
  24     b = t + h - 1;
  25
  26     cl = c->frame->area.x;
  27     ct = c->frame->area.y;
  28     cr = cl + c->frame->area.width - 1;
  29     cb = ct + c->frame->area.height - 1;
  30
  31     if (config_resist_win)
  32         for (it = stacking_list; it != NULL; it = it->next) {
  33             ObClient *target;
  34             int tl, tt, tr, tb; /* 1 past the target's edges on each side */
  35
  36             if (!WINDOW_IS_CLIENT(it->data))
  37                 continue;
  38             target = it->data;
  39             /* don't snap to self or non-visibles */
  40             if (!target->frame->visible || target == c) continue;
  41
  42             tl = target->frame->area.x - 1;
  43             tt = target->frame->area.y - 1;
  44             tr = tl + target->frame->area.width + 1;
  45             tb = tt + target->frame->area.height + 1;
  46
  47             /* snapx and snapy ensure that the window snaps to the top-most
  48                window edge available, without going all the way from
  49                bottom-to-top in the stacking list
  50             */
  51             if (snapx == NULL) {
  52                 if (ct < tb && cb > tt) {
  53                     if (cl >= tr && l < tr && l >= tr - config_resist_win)
  54                         *x = tr, snapx = target;
  55                     else if (cr <= tl && r > tl &&
  56                              r <= tl + config_resist_win)
  57                         *x = tl - w + 1, snapx = target;
  58                     if (snapx != NULL) {
  59                         /* try to corner snap to the window */
  60                         if (ct > tt && t <= tt &&
  61                             t > tt - config_resist_win)
  62                             *y = tt + 1, snapy = target;
  63                         else if (cb < tb && b >= tb &&
  64                                  b < tb + config_resist_win)
  65                             *y = tb - h, snapy = target;
  66                     }
  67                 }
  68             }
  69             if (snapy == NULL) {
  70                 if (cl < tr && cr > tl) {
  71                     if (ct >= tb && t < tb && t >= tb - config_resist_win)
  72                         *y = tb, snapy = target;
  73                     else if (cb <= tt && b > tt &&
  74                              b <= tt + config_resist_win)
  75                         *y = tt - h + 1, snapy = target;
  76                     if (snapy != NULL) {
  77                         /* try to corner snap to the window */
  78                         if (cl > tl && l <= tl &&
  79                             l > tl - config_resist_win)
  80                             *x = tl + 1, snapx = target;
  81                         else if (cr < tr && r >= tr &&
  82                                  r < tr + config_resist_win)
  83                             *x = tr - w, snapx = target;
  84                     }
  85                 }
  86             }
  87
  88             if (snapx && snapy) break;
  89         }
  90 }
  91
  92 void resist_move_monitors(ObClient *c, gint *x, gint *y)
  93 {
  94     Rect *area;
  95     guint i;
  96     gint l, t, r, b; /* requested edges */
  97     gint al, at, ar, ab; /* screen area edges */
  98     gint cl, ct, cr, cb; /* current edges */
  99     gint w, h; /* current size */
 100
 101     w = c->frame->area.width;
 102     h = c->frame->area.height;
 103
 104     l = *x;
 105     t = *y;
 106     r = l + w - 1;
 107     b = t + h - 1;
 108
 109     cl = c->frame->area.x;
 110     ct = c->frame->area.y;
 111     cr = cl + c->frame->area.width - 1;
 112     cb = ct + c->frame->area.height - 1;
 113
 114     if (config_resist_edge) {
 115         for (i = 0; i < screen_num_monitors; ++i) {
 116             area = screen_area_monitor(c->desktop, i);
 117
 118             if (!RECT_INTERSECTS_RECT(*area, c->frame->area))
 119                 continue;
 120
 121             al = area->x;
 122             at = area->y;
 123             ar = al + area->width - 1;
 124             ab = at + area->height - 1;
 125
 126             if (cl >= al && l < al && l >= al - config_resist_edge)
 127                 *x = al;
 128             else if (cr <= ar && r > ar && r <= ar + config_resist_edge)
 129                 *x = ar - w + 1;
 130             if (ct >= at && t < at && t >= at - config_resist_edge)
 131                 *y = at;
 132             else if (cb <= ab && b > ab && b < ab + config_resist_edge)
 133                 *y = ab - h + 1;
 134         }
 135     }
 136 }
 137
 138 void resist_size_windows(ObClient *c, gint *w, gint *h, ObCorner corn)
 139 {
 140     GList *it;
 141     ObClient *target; /* target */
 142     gint l, t, r, b; /* my left, top, right and bottom sides */
 143     gint dlt, drb; /* my destination left/top and right/bottom sides */
 144     gint tl, tt, tr, tb; /* target's left, top, right and bottom bottom sides*/
 145     gint incw, inch;
 146     ObClient *snapx = NULL, *snapy = NULL;
 147
 148     incw = c->size_inc.width;
 149     inch = c->size_inc.height;
 150
 151     l = c->frame->area.x;
 152     r = l + c->frame->area.width - 1;
 153     t = c->frame->area.y;
 154     b = t + c->frame->area.height - 1;
 155
 156     if (config_resist_win) {
 157         for (it = stacking_list; it != NULL; it = it->next) {
 158             if (!WINDOW_IS_CLIENT(it->data))
 159                 continue;
 160             target = it->data;
 161
 162             /* don't snap to invisibles or ourself */
 163             if (!target->frame->visible || target == c) continue;
 164
 165             tl = target->frame->area.x;
 166             tr = target->frame->area.x + target->frame->area.width - 1;
 167             tt = target->frame->area.y;
 168             tb = target->frame->area.y + target->frame->area.height - 1;
 169
 170             if (snapx == NULL) {
 171                 /* horizontal snapping */
 172                 if (t < tb && b > tt) {
 173                     switch (corn) {
 174                     case OB_CORNER_TOPLEFT:
 175                     case OB_CORNER_BOTTOMLEFT:
 176                         dlt = l;
 177                         drb = r + *w - c->frame->area.width;
 178                         if (r < tl && drb >= tl &&
 179                             drb < tl + config_resist_win)
 180                             *w = tl - l, snapx = target;
 181                         break;
 182                     case OB_CORNER_TOPRIGHT:
 183                     case OB_CORNER_BOTTOMRIGHT:
 184                         dlt = l - *w + c->frame->area.width;
 185                         drb = r;
 186                         if (l > tr && dlt <= tr &&
 187                             dlt > tr - config_resist_win)
 188                             *w = r - tr, snapx = target;
 189                         break;
 190                     }
 191                 }
 192             }
 193
 194             if (snapy == NULL) {
 195                 /* vertical snapping */
 196                 if (l < tr && r > tl) {
 197                     switch (corn) {
 198                     case OB_CORNER_TOPLEFT:
 199                     case OB_CORNER_TOPRIGHT:
 200                         dlt = t;
 201                         drb = b + *h - c->frame->area.height;
 202                         if (b < tt && drb >= tt &&
 203                             drb < tt + config_resist_win)
 204                             *h = tt - t, snapy = target;
 205                         break;
 206                     case OB_CORNER_BOTTOMLEFT:
 207                     case OB_CORNER_BOTTOMRIGHT:
 208                         dlt = t - *h + c->frame->area.height;
 209                         drb = b;
 210                         if (t > tb && dlt <= tb &&
 211                             dlt > tb - config_resist_win)
 212                             *h = b - tb, snapy = target;
 213                         break;
 214                     }
 215                 }
 216             }
 217
 218             /* snapped both ways */
 219             if (snapx && snapy) break;
 220         }
 221     }
 222 }
 223
 224 void resist_size_monitors(ObClient *c, gint *w, gint *h, ObCorner corn)
 225 {
 226     gint l, t, r, b; /* my left, top, right and bottom sides */
 227     gint dlt, drb; /* my destination left/top and right/bottom sides */
 228     Rect *area;
 229     gint al, at, ar, ab; /* screen boundaries */
 230     gint incw, inch;
 231
 232     l = c->frame->area.x;
 233     r = l + c->frame->area.width - 1;
 234     t = c->frame->area.y;
 235     b = t + c->frame->area.height - 1;
 236
 237     incw = c->size_inc.width;
 238     inch = c->size_inc.height;
 239
 240     /* get the screen boundaries */
 241     area = screen_area(c->desktop);
 242     al = area->x;
 243     at = area->y;
 244     ar = al + area->width - 1;
 245     ab = at + area->height - 1;
 246
 247     if (config_resist_edge) {
 248         /* horizontal snapping */
 249         switch (corn) {
 250         case OB_CORNER_TOPLEFT:
 251         case OB_CORNER_BOTTOMLEFT:
 252             dlt = l;
 253             drb = r + *w - c->frame->area.width;
 254             if (r <= ar && drb > ar && drb <= ar + config_resist_edge)
 255                 *w = ar - l + 1;
 256             break;
 257         case OB_CORNER_TOPRIGHT:
 258         case OB_CORNER_BOTTOMRIGHT:
 259             dlt = l - *w + c->frame->area.width;
 260             drb = r;
 261             if (l >= al && dlt < al && dlt >= al - config_resist_edge)
 262                 *w = r - al + 1;
 263             break;
 264         }
 265
 266         /* vertical snapping */
 267         switch (corn) {
 268         case OB_CORNER_TOPLEFT:
 269         case OB_CORNER_TOPRIGHT:
 270             dlt = t;
 271             drb = b + *h - c->frame->area.height;
 272             if (b <= ab && drb > ab && drb <= ab + config_resist_edge)
 273                 *h = ab - t + 1;
 274             break;
 275         case OB_CORNER_BOTTOMLEFT:
 276         case OB_CORNER_BOTTOMRIGHT:
 277             dlt = t - *h + c->frame->area.height;
 278             drb = b;
 279             if (t >= at && dlt < at && dlt >= at - config_resist_edge)
 280                 *h = b - at + 1;
 281             break;
 282         }
 283     }
 284 }