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Sort Xinerama monitors by x before using them

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This commit is contained in:
LemonBoy 2014-02-17 14:42:43 +00:00
parent 6fb75424e8
commit 81ef4a8eb7
1 changed files with 29 additions and 9 deletions
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38
bar.c
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@ -393,6 +393,12 @@ monitor_add (monitor_t *mon)
}
}
int
rect_sort_cb (const void *p1, const void *p2)
{
return ((xcb_rectangle_t *)p1)->x - ((xcb_rectangle_t *)p2)->x;
}
void
get_randr_outputs(void)
{
@ -505,30 +511,44 @@ get_xinerama_screens (void)
xcb_xinerama_query_screens_reply_t *xqs_reply;
xcb_xinerama_screen_info_iterator_t iter;
int width = cfg.width;
int i, screens;
xqs_reply = xcb_xinerama_query_screens_reply (c,
xcb_xinerama_query_screens_unchecked (c), NULL);
iter = xcb_xinerama_query_screens_screen_info_iterator (xqs_reply);
/* The width is consumed across all the screens */
xcb_rectangle_t rects[iter.rem];
while (iter.rem) {
/* Fetch all the screens first */
for (i = 0; iter.rem; i++) {
rects[i].x = iter.data->x_org;
rects[i].y = iter.data->y_org;
rects[i].width = iter.data->width;
rects[i].height = iter.data->height;
xcb_xinerama_screen_info_next (&iter);
}
screens = i;
/* Sort by X */
qsort(rects, i, sizeof(xcb_rectangle_t), rect_sort_cb);
/* The width is consumed across all the screens */
for (i = 0; i < screens; i++) {
monitor_t *mon = monitor_new (
iter.data->x_org,
iter.data->y_org,
MIN(width, iter.data->width),
iter.data->height);
rects[i].x,
rects[i].y,
MIN(width, rects[i].width),
rects[i].height);
monitor_add (mon);
width -= iter.data->width;
width -= rects[i].width;
/* No need to check for other monitors */
if (width <= 0)
break;
xcb_xinerama_screen_info_next (&iter);
}
free (xqs_reply);