#include "util.h"
#include "xinerama.h"
-/* This TAILQ of Rects stores the virtual screens, used for handling overlapping screens
+/* This TAILQ of i3Screens stores the virtual screens, used for handling overlapping screens
* (xrandr --same-as) */
-struct screens_head virtual_screens;
+struct screens_head virtual_screens = TAILQ_HEAD_INITIALIZER(virtual_screens);
+/*
+ * Looks in virtual_screens for the i3Screen whose start coordinates are x, y
+ *
+ */
i3Screen *get_screen_at(int x, int y) {
i3Screen *screen;
TAILQ_FOREACH(screen, &virtual_screens, screens)
return NULL;
}
+/*
+ * Looks in virtual_screens for the i3Screen which contains coordinates x, y
+ *
+ */
i3Screen *get_screen_containing(int x, int y) {
i3Screen *screen;
TAILQ_FOREACH(screen, &virtual_screens, screens)
return NULL;
}
+/*
+ * Fills virtual_screens with exactly one screen with width/height of the whole X server.
+ *
+ */
+static void disable_xinerama(xcb_connection_t *connection) {
+ xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(connection)).data;
+
+ i3Screen *s = calloc(sizeof(i3Screen), 1);
+
+ s->rect.x = 0;
+ s->rect.y = 0;
+ s->rect.width = root_screen->width_in_pixels;
+ s->rect.height = root_screen->height_in_pixels;
+
+ TAILQ_INSERT_TAIL(&virtual_screens, s, screens);
+}
/*
* We have just established a connection to the X server and need the initial Xinerama
if (!xcb_get_extension_data(conn, &xcb_xinerama_id)->present) {
printf("Xinerama extension not found, disabling.\n");
+ disable_xinerama(conn);
return;
}
if (!xcb_xinerama_is_active_reply(conn, xcb_xinerama_is_active(conn), NULL)->state) {
printf("Xinerama is not active (in your X-Server), disabling.\n");
+ disable_xinerama(conn);
return;
}
screen_info = xcb_xinerama_query_screens_screen_info(reply);
num_screens = xcb_xinerama_query_screens_screen_info_length(reply);
- TAILQ_INIT(&virtual_screens);
-
/* Just go through each workspace and associate as many screens as we can. */
for (screen = 0; screen < num_screens; screen++) {
i3Screen *s = get_screen_at(screen_info[screen].x_org, screen_info[screen].y_org);
s->rect.width = min(s->rect.width, screen_info[screen].width);
s->rect.height = min(s->rect.height, screen_info[screen].height);
} else {
- s = calloc(sizeof(Screen), 1);
+ s = calloc(sizeof(i3Screen), 1);
s->rect.x = screen_info[screen].x_org;
s->rect.y = screen_info[screen].y_org;
s->rect.width = screen_info[screen].width;