monitor_t *add_monitor(xcb_rectangle_t rect)
{
monitor_t *m = make_monitor(rect);
if (mon == NULL) {
mon = m;
mon_head = m;
mon_tail = m;
} else {
mon_tail->next = m;
m->prev = mon_tail;
mon_tail = m;
}
num_monitors++;
return m;
}
monitor_t *add_monitor(xcb_rectangle_t rect)
{
monitor_t *m = make_monitor(rect);
put_status(SBSC_MASK_MONITOR_ADD, "monitor_add %s\n", m->name);
if (mon == NULL) {
mon = m;
mon_head = m;
mon_tail = m;
} else {
mon_tail->next = m;
m->prev = mon_tail;
mon_tail = m;
}
num_monitors++;
return m;
}
bool update_monitors(void)
{
xcb_randr_get_screen_resources_reply_t *sres = xcb_randr_get_screen_resources_reply(dpy, xcb_randr_get_screen_resources(dpy, root), NULL);
if (sres == NULL) {
return false;
}
monitor_t *m, *mm = NULL;
int len = xcb_randr_get_screen_resources_outputs_length(sres);
xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_outputs(sres);
xcb_randr_get_output_info_cookie_t cookies[len];
for (int i = 0; i < len; i++) {
cookies[i] = xcb_randr_get_output_info(dpy, outputs[i], XCB_CURRENT_TIME);
}
for (m = mon_head; m != NULL; m = m->next) {
m->wired = false;
}
for (int i = 0; i < len; i++) {
xcb_randr_get_output_info_reply_t *info = xcb_randr_get_output_info_reply(dpy, cookies[i], NULL);
if (info != NULL) {
if (info->crtc != XCB_NONE) {
xcb_randr_get_crtc_info_reply_t *cir = xcb_randr_get_crtc_info_reply(dpy, xcb_randr_get_crtc_info(dpy, info->crtc, XCB_CURRENT_TIME), NULL);
if (cir != NULL) {
xcb_rectangle_t rect = (xcb_rectangle_t) {cir->x, cir->y, cir->width, cir->height};
mm = get_monitor_by_randr_id(outputs[i]);
if (mm != NULL) {
update_root(mm, &rect);
mm->wired = true;
} else {
mm = make_monitor(&rect, XCB_NONE);
char *name = (char *)xcb_randr_get_output_info_name(info);
int len = xcb_randr_get_output_info_name_length(info);
size_t name_size = MIN(sizeof(mm->name), (size_t) len + 1);
snprintf(mm->name, name_size, "%s", name);
mm->randr_id = outputs[i];
add_monitor(mm);
}
}
free(cir);
} else if (!remove_disabled_monitors && info->connection != XCB_RANDR_CONNECTION_DISCONNECTED) {
m = get_monitor_by_randr_id(outputs[i]);
if (m != NULL) {
m->wired = true;
}
}
}
free(info);
}
xcb_randr_get_output_primary_reply_t *gpo = xcb_randr_get_output_primary_reply(dpy, xcb_randr_get_output_primary(dpy, root), NULL);
if (gpo != NULL) {
pri_mon = get_monitor_by_randr_id(gpo->output);
}
free(gpo);
/* handle overlapping monitors */
if (merge_overlapping_monitors) {
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (m->wired) {
monitor_t *mb = mon_head;
while (mb != NULL) {
monitor_t *mb_next = mb->next;
if (m != mb && mb->wired && contains(m->rectangle, mb->rectangle)) {
if (mm == mb) {
mm = m;
}
if (next == mb) {
next = mb_next;
}
merge_monitors(mb, m);
remove_monitor(mb);
}
mb = mb_next;
}
}
m = next;
}
}
/* merge and remove disconnected monitors */
if (remove_unplugged_monitors) {
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (!m->wired) {
merge_monitors(m, mm);
remove_monitor(m);
}
m = next;
}
}
/* add one desktop to each new monitor */
for (m = mon_head; m != NULL; m = m->next) {
if (m->desk == NULL) {
add_desktop(m, make_desktop(NULL, XCB_NONE));
}
}
if (!running && mon != NULL) {
if (pri_mon != NULL) {
mon = pri_mon;
}
center_pointer(mon->rectangle);
ewmh_update_current_desktop();
}
free(sres);
return (mon != NULL);
}