+static void get_row_col(guint d, guint *r, guint *c)
+{
+ switch (screen_desktop_layout.orientation) {
+ case OB_ORIENTATION_HORZ:
+ switch (screen_desktop_layout.start_corner) {
+ case OB_CORNER_TOPLEFT:
+ *r = d / screen_desktop_layout.columns;
+ *c = d % screen_desktop_layout.columns;
+ break;
+ case OB_CORNER_BOTTOMLEFT:
+ *r = screen_desktop_layout.rows - 1 -
+ d / screen_desktop_layout.columns;
+ *c = d % screen_desktop_layout.columns;
+ break;
+ case OB_CORNER_TOPRIGHT:
+ *r = d / screen_desktop_layout.columns;
+ *c = screen_desktop_layout.columns - 1 -
+ d % screen_desktop_layout.columns;
+ break;
+ case OB_CORNER_BOTTOMRIGHT:
+ *r = screen_desktop_layout.rows - 1 -
+ d / screen_desktop_layout.columns;
+ *c = screen_desktop_layout.columns - 1 -
+ d % screen_desktop_layout.columns;
+ break;
+ }
+ break;
+ case OB_ORIENTATION_VERT:
+ switch (screen_desktop_layout.start_corner) {
+ case OB_CORNER_TOPLEFT:
+ *r = d % screen_desktop_layout.rows;
+ *c = d / screen_desktop_layout.rows;
+ break;
+ case OB_CORNER_BOTTOMLEFT:
+ *r = screen_desktop_layout.rows - 1 -
+ d % screen_desktop_layout.rows;
+ *c = d / screen_desktop_layout.rows;
+ break;
+ case OB_CORNER_TOPRIGHT:
+ *r = d % screen_desktop_layout.rows;
+ *c = screen_desktop_layout.columns - 1 -
+ d / screen_desktop_layout.rows;
+ break;
+ case OB_CORNER_BOTTOMRIGHT:
+ *r = screen_desktop_layout.rows - 1 -
+ d % screen_desktop_layout.rows;
+ *c = screen_desktop_layout.columns - 1 -
+ d / screen_desktop_layout.rows;
+ break;
+ }
+ break;
+ }
+}
+
+static guint translate_row_col(guint r, guint c)
+{
+ switch (screen_desktop_layout.orientation) {
+ case OB_ORIENTATION_HORZ:
+ switch (screen_desktop_layout.start_corner) {
+ case OB_CORNER_TOPLEFT:
+ return r % screen_desktop_layout.rows *
+ screen_desktop_layout.columns +
+ c % screen_desktop_layout.columns;
+ case OB_CORNER_BOTTOMLEFT:
+ return (screen_desktop_layout.rows - 1 -
+ r % screen_desktop_layout.rows) *
+ screen_desktop_layout.columns +
+ c % screen_desktop_layout.columns;
+ case OB_CORNER_TOPRIGHT:
+ return r % screen_desktop_layout.rows *
+ screen_desktop_layout.columns +
+ (screen_desktop_layout.columns - 1 -
+ c % screen_desktop_layout.columns);
+ case OB_CORNER_BOTTOMRIGHT:
+ return (screen_desktop_layout.rows - 1 -
+ r % screen_desktop_layout.rows) *
+ screen_desktop_layout.columns +
+ (screen_desktop_layout.columns - 1 -
+ c % screen_desktop_layout.columns);
+ }
+ case OB_ORIENTATION_VERT:
+ switch (screen_desktop_layout.start_corner) {
+ case OB_CORNER_TOPLEFT:
+ return c % screen_desktop_layout.columns *
+ screen_desktop_layout.rows +
+ r % screen_desktop_layout.rows;
+ case OB_CORNER_BOTTOMLEFT:
+ return c % screen_desktop_layout.columns *
+ screen_desktop_layout.rows +
+ (screen_desktop_layout.rows - 1 -
+ r % screen_desktop_layout.rows);
+ case OB_CORNER_TOPRIGHT:
+ return (screen_desktop_layout.columns - 1 -
+ c % screen_desktop_layout.columns) *
+ screen_desktop_layout.rows +
+ r % screen_desktop_layout.rows;
+ case OB_CORNER_BOTTOMRIGHT:
+ return (screen_desktop_layout.columns - 1 -
+ c % screen_desktop_layout.columns) *
+ screen_desktop_layout.rows +
+ (screen_desktop_layout.rows - 1 -
+ r % screen_desktop_layout.rows);
+ }
+ }
+ g_assert_not_reached();
+ return 0;
+}
+
+static void popup_cycle(guint d, gboolean show)
+{
+ Rect *a;
+
+ if (!show) {
+ popup_hide(desktop_cycle_popup);
+ } else {
+ a = screen_physical_area_monitor(0);
+ popup_position(desktop_cycle_popup, CenterGravity,
+ a->x + a->width / 2, a->y + a->height / 2);
+ /* XXX the size and the font extents need to be related on some level
+ */
+ popup_size(desktop_cycle_popup, POPUP_WIDTH, POPUP_HEIGHT);
+
+ popup_set_text_align(desktop_cycle_popup, RR_JUSTIFY_CENTER);
+
+ popup_show(desktop_cycle_popup,
+ screen_desktop_names[d], NULL);
+ }
+}
+
+guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
+ gboolean dialog, gboolean done, gboolean cancel)
+{
+ static gboolean first = TRUE;
+ static gboolean lin;
+ static guint origd, d;
+ guint r, c;
+
+ if (cancel) {
+ d = origd;
+ goto done_cycle;
+ } else if (done) {
+ screen_set_desktop(d);
+ goto done_cycle;
+ }
+ if (first) {
+ first = FALSE;
+ lin = linear;
+ d = origd = screen_desktop;
+ }
+
+ get_row_col(d, &r, &c);
+
+ if (lin) {
+ switch (dir) {
+ case OB_DIRECTION_EAST:
+ if (d < screen_num_desktops - 1)
+ ++d;
+ else if (wrap)
+ d = 0;
+ break;
+ case OB_DIRECTION_WEST:
+ if (d > 0)
+ --d;
+ else if (wrap)
+ d = screen_num_desktops - 1;
+ break;
+ default:
+ assert(0);
+ return screen_desktop;
+ }
+ } else {
+ switch (dir) {
+ case OB_DIRECTION_EAST:
+ ++c;
+ if (c >= screen_desktop_layout.columns) {
+ if (!wrap) return d = screen_desktop;
+ c = 0;
+ }
+ d = translate_row_col(r, c);
+ if (d >= screen_num_desktops) {
+ if (!wrap) return d = screen_desktop;
+ ++c;
+ }
+ break;
+ case OB_DIRECTION_WEST:
+ --c;
+ if (c >= screen_desktop_layout.columns) {
+ if (!wrap) return d = screen_desktop;
+ c = screen_desktop_layout.columns - 1;
+ }
+ d = translate_row_col(r, c);
+ if (d >= screen_num_desktops) {
+ if (!wrap) return d = screen_desktop;
+ --c;
+ }
+ break;
+ case OB_DIRECTION_SOUTH:
+ ++r;
+ if (r >= screen_desktop_layout.rows) {
+ if (!wrap) return d = screen_desktop;
+ r = 0;
+ }
+ d = translate_row_col(r, c);
+ if (d >= screen_num_desktops) {
+ if (!wrap) return d = screen_desktop;
+ ++r;
+ }
+ break;
+ case OB_DIRECTION_NORTH:
+ --r;
+ if (r >= screen_desktop_layout.rows) {
+ if (!wrap) return d = screen_desktop;
+ r = screen_desktop_layout.rows - 1;
+ }
+ d = translate_row_col(r, c);
+ if (d >= screen_num_desktops) {
+ if (!wrap) return d = screen_desktop;
+ --r;
+ }
+ break;
+ default:
+ assert(0);
+ return d = screen_desktop;
+ }
+
+ d = translate_row_col(r, c);
+ }
+
+ if (dialog) {
+ popup_cycle(d, TRUE);
+ return d;
+ }
+
+done_cycle:
+ first = TRUE;
+
+ popup_cycle(0, FALSE);
+
+ return d;