+
+/*
+ * Handles the size hints set by a window, but currently only the part necessary for displaying
+ * clients proportionally inside their frames (mplayer for example)
+ *
+ * See ICCCM 4.1.2.3 for more details
+ *
+ */
+int handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
+ xcb_atom_t name, xcb_get_property_reply_t *reply) {
+ printf("handle_normal_hints\n");
+ Client *client = table_get(byChild, window);
+ if (client == NULL) {
+ printf("No such client\n");
+ return;
+ }
+ xcb_size_hints_t size_hints;
+
+ /* If the hints were already in this event, use them, if not, request them */
+ if (reply != NULL)
+ xcb_get_wm_size_hints_from_reply(&size_hints, reply);
+ else
+ xcb_get_wm_normal_hints_reply(conn, xcb_get_wm_normal_hints_unchecked(conn, client->child), &size_hints, NULL);
+
+ /* If no aspect ratio was set or if it was invalid, we ignore the hints */
+ if (!(size_hints.flags & XCB_SIZE_HINT_P_ASPECT) ||
+ (size_hints.min_aspect_num <= 0) ||
+ (size_hints.min_aspect_den <= 0)) {
+ printf("No aspect ratio set, ignoring\n");
+ return;
+ }
+
+ printf("window is %08x / %s\n", client->child, client->name);
+
+ int base_width = 0, base_height = 0,
+ min_width = 0, min_height = 0;
+
+ /* base_width/height are the desired size of the window.
+ We check if either the program-specified size or the program-specified
+ min-size is available */
+ if (size_hints.flags & XCB_SIZE_HINT_P_SIZE) {
+ base_width = size_hints.base_width;
+ base_height = size_hints.base_height;
+ } else if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
+ base_width = size_hints.min_width;
+ base_height = size_hints.min_height;
+ }
+
+ if (size_hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) {
+ min_width = size_hints.min_width;
+ min_height = size_hints.min_height;
+ } else if (size_hints.flags & XCB_SIZE_HINT_P_SIZE) {
+ min_width = size_hints.base_width;
+ min_height = size_hints.base_height;
+ }
+
+ double width = client->rect.width - base_width;
+ double height = client->rect.height - base_height;
+ /* Convert numerator/denominator to a double */
+ double min_aspect = (double)size_hints.min_aspect_num / size_hints.min_aspect_den;
+ double max_aspect = (double)size_hints.max_aspect_num / size_hints.min_aspect_den;
+
+ printf("min_aspect = %f, max_aspect = %f\n", min_aspect, max_aspect);
+ printf("width = %f, height = %f\n", width, height);
+
+ /* Sanity checks, this is user-input, in a way */
+ if (max_aspect <= 0 || min_aspect <= 0 || height == 0 || (width / height) <= 0)
+ return;
+
+ /* Check if we need to set proportional_* variables using the correct ratio */
+ if ((width / height) < min_aspect) {
+ client->proportional_width = width;
+ client->proportional_height = width / min_aspect;
+ } else if ((width / height) > max_aspect) {
+ client->proportional_width = width;
+ client->proportional_height = width / max_aspect;
+ } else return;
+
+ client->force_reconfigure = true;
+
+ if (client->container != NULL)
+ render_container(conn, client->container);
+}