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);
}
bool import_monitors(void)
{
PUTS("import monitors");
xcb_randr_get_screen_resources_current_reply_t *sres = xcb_randr_get_screen_resources_current_reply(dpy, xcb_randr_get_screen_resources_current(dpy, root), NULL);
if (sres == NULL)
return false;
monitor_t *m, *mm = NULL;
int len = xcb_randr_get_screen_resources_current_outputs_length(sres);
xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_current_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_id(outputs[i]);
if (mm != NULL) {
mm->rectangle = rect;
update_root(mm);
for (desktop_t *d = mm->desk_head; d != NULL; d = d->next)
for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root))
translate_client(mm, mm, n->client);
arrange(mm, mm->desk);
mm->wired = true;
PRINTF("update monitor %s (0x%X)\n", mm->name, mm->id);
} else {
mm = add_monitor(rect);
char *name = (char *)xcb_randr_get_output_info_name(info);
size_t name_len = MIN(sizeof(mm->name), (size_t)xcb_randr_get_output_info_name_length(info) + 1);
snprintf(mm->name, name_len, "%s", name);
mm->id = outputs[i];
PRINTF("add monitor %s (0x%X)\n", mm->name, mm->id);
}
}
free(cir);
} else if (!remove_disabled_monitor && info->connection != XCB_RANDR_CONNECTION_DISCONNECTED) {
m = get_monitor_by_id(outputs[i]);
if (m != NULL)
m->wired = true;
}
}
free(info);
}
/* initially focus the primary monitor and add the first desktop to it */
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_id(gpo->output);
if (!running && pri_mon != NULL) {
if (mon != pri_mon)
mon = pri_mon;
add_desktop(pri_mon, make_desktop(NULL));
ewmh_update_current_desktop();
}
}
free(gpo);
/* handle overlapping monitors */
m = mon_head;
while (m != NULL) {
monitor_t *next = m->next;
if (m->wired) {
for (monitor_t *mb = mon_head; mb != NULL; mb = mb->next)
if (mb != m && mb->wired && (m->desk == NULL || mb->desk == NULL)
&& contains(mb->rectangle, m->rectangle)) {
if (mm == m)
mm = mb;
merge_monitors(m, mb);
remove_monitor(m);
break;
}
}
m = next;
}
/* merge and remove disconnected 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 && (running || pri_mon == NULL || m != pri_mon))
add_desktop(m, make_desktop(NULL));
free(sres);
update_motion_recorder();
return (num_monitors > 0);
}
void setup(void)
{
ewmh_init();
screen = xcb_setup_roots_iterator(xcb_get_setup(dpy)).data;
if (!screen)
err("error: cannot aquire screen\n");
screen_width = screen->width_in_pixels;
screen_height = screen->height_in_pixels;
root_depth = screen->root_depth;
xcb_atom_t net_atoms[] = {ewmh->_NET_SUPPORTED,
ewmh->_NET_DESKTOP_NAMES,
ewmh->_NET_NUMBER_OF_DESKTOPS,
ewmh->_NET_CURRENT_DESKTOP,
ewmh->_NET_CLIENT_LIST,
ewmh->_NET_ACTIVE_WINDOW,
ewmh->_NET_WM_DESKTOP,
ewmh->_NET_WM_STATE,
ewmh->_NET_WM_STATE_FULLSCREEN,
ewmh->_NET_WM_WINDOW_TYPE,
ewmh->_NET_WM_WINDOW_TYPE_DOCK,
ewmh->_NET_WM_WINDOW_TYPE_NOTIFICATION,
ewmh->_NET_WM_WINDOW_TYPE_DIALOG,
ewmh->_NET_WM_WINDOW_TYPE_UTILITY,
ewmh->_NET_WM_WINDOW_TYPE_TOOLBAR};
xcb_ewmh_set_supported(ewmh, default_screen, LENGTH(net_atoms), net_atoms);
monitor_uid = desktop_uid = client_uid = 0;
mon = last_mon = mon_head = mon_tail = NULL;
bool xinerama_is_active = false;
if (xcb_get_extension_data(dpy, &xcb_xinerama_id)->present) {
xcb_xinerama_is_active_reply_t *xia = xcb_xinerama_is_active_reply(dpy, xcb_xinerama_is_active(dpy), NULL);
if (xia != NULL) {
xinerama_is_active = xia->state;
free(xia);
}
}
if (xinerama_is_active) {
xcb_xinerama_query_screens_reply_t *xsq = xcb_xinerama_query_screens_reply(dpy, xcb_xinerama_query_screens(dpy), NULL);
xcb_xinerama_screen_info_t *xsi = xcb_xinerama_query_screens_screen_info(xsq);
int n = xcb_xinerama_query_screens_screen_info_length(xsq);
PRINTF("number of monitors: %d\n", n);
for (int i = 0; i < n; i++) {
xcb_xinerama_screen_info_t info = xsi[i];
xcb_rectangle_t rect = (xcb_rectangle_t) {info.x_org, info.y_org, info.width, info.height};
add_monitor(&rect);
}
free(xsq);
} else {
warn("Xinerama is inactive");
xcb_rectangle_t rect = (xcb_rectangle_t) {0, 0, screen_width, screen_height};
add_monitor(&rect);
}
for (monitor_t *m = mon_head; m != NULL; m = m->next)
add_desktop(m, NULL);
ewmh_update_number_of_desktops();
ewmh_update_desktop_names();
rule_head = make_rule();
frozen_pointer = make_pointer_state();
get_pointer_position(&pointer_position);
split_mode = MODE_AUTOMATIC;
}