+++ /dev/null
-#include "kernel/dispatch.h"
-#include "kernel/client.h"
-#include "kernel/frame.h"
-#include "kernel/parse.h"
-#include "kernel/stacking.h"
-#include "kernel/screen.h"
-#include <glib.h>
-
-static int resistance;
-static gboolean resist_windows;
-
-static void parse_xml(xmlDocPtr doc, xmlNodePtr node, void *d)
-{
- xmlNodePtr n;
-
- if ((n = parse_find_node("strength", node)))
- resistance = parse_int(doc, n);
- if ((n = parse_find_node("windows", node)))
- resist_windows = parse_bool(doc, n);
-}
-
-void plugin_setup_config()
-{
- resistance = 10;
- resist_windows = TRUE;
-
- parse_register("resistance", parse_xml, NULL);
-}
-
-static void resist_move(Client *c, int *x, int *y)
-{
- GList *it;
- Rect *area;
- int l, t, r, b; /* requested edges */
- int al, at, ar, ab; /* screen area edges */
- int cl, ct, cr, cb; /* current edges */
- int w, h; /* current size */
- Client *snapx = NULL, *snapy = NULL;
-
- w = c->frame->area.width;
- h = c->frame->area.height;
-
- l = *x;
- t = *y;
- r = l + w - 1;
- b = t + h - 1;
-
- cl = c->frame->area.x;
- ct = c->frame->area.y;
- cr = cl + c->frame->area.width - 1;
- cb = ct + c->frame->area.height - 1;
-
- /* snap to other clients */
- if (resist_windows)
- for (it = stacking_list; it != NULL; it = it->next) {
- Client *target;
- int tl, tt, tr, tb; /* 1 past the target's edges on each side */
-
- if (!WINDOW_IS_CLIENT(it->data))
- continue;
- target = it->data;
- /* don't snap to self or non-visibles */
- if (!target->frame->visible || target == c) continue;
-
- tl = target->frame->area.x - 1;
- tt = target->frame->area.y - 1;
- tr = tl + target->frame->area.width + 1;
- tb = tt + target->frame->area.height + 1;
-
- /* snapx and snapy ensure that the window snaps to the top-most
- window edge available, without going all the way from
- bottom-to-top in the stacking list
- */
- if (snapx == NULL) {
- if (ct < tb && cb > tt) {
- if (cl >= tr && l < tr && l >= tr - resistance)
- *x = tr, snapx = target;
- else if (cr <= tl && r > tl && r <= tl + resistance)
- *x = tl - w + 1, snapx = target;
- if (snapx != NULL) {
- /* try to corner snap to the window */
- if (ct > tt && t <= tt && t > tt - resistance)
- *y = tt + 1, snapy = target;
- else if (cb < tb && b >= tb && b < tb + resistance)
- *y = tb - h, snapy = target;
- }
- }
- }
- if (snapy == NULL) {
- if (cl < tr && cr > tl) {
- if (ct >= tb && t < tb && t >= tb - resistance)
- *y = tb, snapy = target;
- else if (cb <= tt && b > tt && b <= tt + resistance)
- *y = tt - h + 1, snapy = target;
- if (snapy != NULL) {
- /* try to corner snap to the window */
- if (cl > tl && l <= tl && l > tl - resistance)
- *x = tl + 1, snapx = target;
- else if (cr < tr && r >= tr && r < tr + resistance)
- *x = tr - w, snapx = target;
- }
- }
- }
-
- if (snapx && snapy) break;
- }
-
- /* get the screen boundaries */
- area = screen_area(c->desktop);
- al = area->x;
- at = area->y;
- ar = al + area->width - 1;
- ab = at + area->height - 1;
-
- /* snap to screen edges */
- if (cl >= al && l < al && l >= al - resistance)
- *x = al;
- else if (cr <= ar && r > ar && r <= ar + resistance)
- *x = ar - w + 1;
- if (ct >= at && t < at && t >= at - resistance)
- *y = at;
- else if (cb <= ab && b > ab && b < ab + resistance)
- *y = ab - h + 1;
-}
-
-static void resist_size(Client *c, int *w, int *h, Corner corn)
-{
- GList *it;
- Client *target; /* target */
- int l, t, r, b; /* my left, top, right and bottom sides */
- int dlt, drb; /* my destination left/top and right/bottom sides */
- int tl, tt, tr, tb; /* target's left, top, right and bottom bottom sides */
- Rect *area;
- int al, at, ar, ab; /* screen boundaries */
- Client *snapx = NULL, *snapy = NULL;
-
- /* don't snap windows with size increments */
- if (c->size_inc.width > 1 || c->size_inc.height > 1)
- return;
-
- l = c->frame->area.x;
- r = l + c->frame->area.width - 1;
- t = c->frame->area.y;
- b = t + c->frame->area.height - 1;
-
- /* get the screen boundaries */
- area = screen_area(c->desktop);
- al = area->x;
- at = area->y;
- ar = al + area->width - 1;
- ab = at + area->height - 1;
-
- /* snap to other windows */
- if (resist_windows) {
- for (it = stacking_list; it != NULL; it = it->next) {
- if (!WINDOW_IS_CLIENT(it->data))
- continue;
- target = it->data;
-
- /* don't snap to invisibles or ourself */
- if (!target->frame->visible || target == c) continue;
-
- tl = target->frame->area.x;
- tr = target->frame->area.x + target->frame->area.width - 1;
- tt = target->frame->area.y;
- tb = target->frame->area.y + target->frame->area.height - 1;
-
- if (snapx == NULL) {
- /* horizontal snapping */
- if (t < tb && b > tt) {
- switch (corn) {
- case Corner_TopLeft:
- case Corner_BottomLeft:
- dlt = l;
- drb = r + *w - c->frame->area.width;
- if (r < tl && drb >= tl && drb < tl + resistance)
- *w = tl - l, snapx = target;
- break;
- case Corner_TopRight:
- case Corner_BottomRight:
- dlt = l - *w + c->frame->area.width;
- drb = r;
- if (l > tr && dlt <= tr && dlt > tr - resistance)
- *w = r - tr, snapx = target;
- break;
- }
- }
- }
-
- if (snapy == NULL) {
- /* vertical snapping */
- if (l < tr && r > tl) {
- switch (corn) {
- case Corner_TopLeft:
- case Corner_TopRight:
- dlt = t;
- drb = b + *h - c->frame->area.height;
- if (b < tt && drb >= tt && drb < tt + resistance)
- *h = tt - t, snapy = target;
- break;
- case Corner_BottomLeft:
- case Corner_BottomRight:
- dlt = t - *h + c->frame->area.height;
- drb = b;
- if (t > tb && dlt <= tb && dlt > tb - resistance)
- *h = b - tb, snapy = target;
- break;
- }
- }
- }
-
- /* snapped both ways */
- if (snapx && snapy) break;
- }
- }
-
- /* snap to screen edges */
-
- /* horizontal snapping */
- switch (corn) {
- case Corner_TopLeft:
- case Corner_BottomLeft:
- dlt = l;
- drb = r + *w - c->frame->area.width;
- if (r <= ar && drb > ar && drb <= ar + resistance)
- *w = ar - l + 1;
- break;
- case Corner_TopRight:
- case Corner_BottomRight:
- dlt = l - *w + c->frame->area.width;
- drb = r;
- if (l >= al && dlt < al && dlt >= al - resistance)
- *w = r - al + 1;
- break;
- }
-
- /* vertical snapping */
- switch (corn) {
- case Corner_TopLeft:
- case Corner_TopRight:
- dlt = t;
- drb = b + *h - c->frame->area.height;
- if (b <= ab && drb > ab && drb <= ab + resistance)
- *h = ab - t + 1;
- break;
- case Corner_BottomLeft:
- case Corner_BottomRight:
- dlt = t - *h + c->frame->area.height;
- drb = b;
- if (t >= at && dlt < at && dlt >= at - resistance)
- *h = b - at + 1;
- break;
- }
-}
-
-static void event(ObEvent *e, void *foo)
-{
- if (e->type == Event_Client_Moving)
- resist_move(e->data.c.client, &e->data.c.num[0], &e->data.c.num[1]);
- else if (e->type == Event_Client_Resizing)
- resist_size(e->data.c.client, &e->data.c.num[0], &e->data.c.num[1],
- e->data.c.num[2]);
-}
-
-void plugin_startup()
-{
- dispatch_register(Event_Client_Moving | Event_Client_Resizing,
- (EventHandler)event, NULL);
-}
-
-void plugin_shutdown()
-{
- dispatch_register(0, (EventHandler)event, NULL);
-}
projects / chaz / openbox / blobdiff