Add theme option to configure boxes from workspace OSD

This allows to configure width and height of "boxes" displayed in the
workspace OSD. A setting of `0` disables the boxes.

docs/labwc-theme.5.scd

@@ -174,6 +174,12 @@ elements are not listed here, but are supported.
 	Border width of the selection box in the window switcher in pixels.
 	Default is 2.
 
+*osd.workspace-switcher.boxes.width*
+	Width of boxes in workspace switcher in pixels. Setting to 0 disables boxes. Default is 20.
+
+*osd.workspace-switcher.boxes.height*
+	Height of boxes in workspace switcher in pixels. Setting to 0 disables boxes.  Default is 20.
+
 *border.color*
 	Set all border colors. This is obsolete, but supported for backward
 	compatibility as some themes still contain it.

docs/themerc

@@ -65,3 +65,6 @@ osd.window-switcher.padding: 4
 osd.window-switcher.item.padding.x: 10
 osd.window-switcher.item.padding.y: 1
 osd.window-switcher.item.active.border.width: 2
+
+osd.workspace-switcher.boxes.width: 20
+osd.workspace-switcher.boxes.height: 20

include/theme.h

@@ -76,6 +76,9 @@ struct theme {
 	int osd_window_switcher_item_padding_y;
 	int osd_window_switcher_item_active_border_width;
 
+	int osd_workspace_switcher_boxes_width;
+	int osd_workspace_switcher_boxes_height;
+
 	/* textures */
 	struct lab_data_buffer *button_close_active_unpressed;
 	struct lab_data_buffer *button_maximize_active_unpressed;

src/theme.c

@@ -326,6 +326,9 @@ theme_builtin(struct theme *theme)
 	theme->osd_window_switcher_item_padding_y = 1;
 	theme->osd_window_switcher_item_active_border_width = 2;
 
+	theme->osd_workspace_switcher_boxes_width = 20;
+	theme->osd_workspace_switcher_boxes_height = 20;
+
 	/* inherit settings in post_processing() if not set elsewhere */
 	theme->osd_bg_color[0] = FLT_MIN;
 	theme->osd_border_width = INT_MIN;
@@ -512,6 +515,12 @@ entry(struct theme *theme, const char *key, const char *value)
 	if (match_glob(key, "osd.window-switcher.item.active.border.width")) {
 		theme->osd_window_switcher_item_active_border_width = atoi(value);
 	}
+	if (match_glob(key, "osd.workspace-switcher.boxes.width")) {
+		theme->osd_workspace_switcher_boxes_width = atoi(value);
+	}
+	if (match_glob(key, "osd.workspace-switcher.boxes.height")) {
+		theme->osd_workspace_switcher_boxes_height = atoi(value);
+	}
 	if (match_glob(key, "osd.label.text.color")) {
 		parse_hexstr(value, theme->osd_label_text_color);
 	}
@@ -860,6 +869,12 @@ post_processing(struct theme *theme)
 		memcpy(theme->osd_border_color, theme->osd_label_text_color,
 			sizeof(theme->osd_border_color));
 	}
+	if (theme->osd_workspace_switcher_boxes_width == 0) {
+		theme->osd_workspace_switcher_boxes_height = 0;
+	}
+	if (theme->osd_workspace_switcher_boxes_height == 0) {
+		theme->osd_workspace_switcher_boxes_width = 0;
+	}
 }
 
 void

src/workspaces.c

@@ -60,14 +60,16 @@ _osd_update(struct server *server)
 	/* Settings */
 	uint16_t margin = 10;
 	uint16_t padding = 2;
-	uint16_t rect_height = 20;
+	uint16_t rect_height = theme->osd_workspace_switcher_boxes_height;
-	uint16_t rect_width = 20;
+	uint16_t rect_width = theme->osd_workspace_switcher_boxes_width;
+	bool hide_boxes = theme->osd_workspace_switcher_boxes_width == 0 ||
+		theme->osd_workspace_switcher_boxes_height == 0;
 
 	/* Dimensions */
 	size_t workspace_count = wl_list_length(&server->workspaces);
 	uint16_t marker_width = workspace_count * (rect_width + padding) - padding;
 	uint16_t width = margin * 2 + (marker_width < 200 ? 200 : marker_width);
-	uint16_t height = margin * 3 + rect_height + font_height(&rc.font_osd);
+	uint16_t height = margin * (hide_boxes ? 2 : 3) + rect_height + font_height(&rc.font_osd);
 
 	cairo_t *cairo;
 	cairo_surface_t *surface;
@@ -100,7 +102,10 @@ _osd_update(struct server *server)
 		};
 		draw_cairo_border(cairo, fbox, theme->osd_border_width);
 
-		uint16_t x = (width - marker_width) / 2;
+		/* Boxes */
+		uint16_t x;
+		if (!hide_boxes) {
+			x = (width - marker_width) / 2;
 			wl_list_for_each(workspace, &server->workspaces, link) {
 				bool active =  workspace == server->workspace_current;
 				set_cairo_color(cairo, server->theme->osd_label_text_color);
@@ -114,6 +119,7 @@ _osd_update(struct server *server)
 				}
 				x += rect_width + padding;
 			}
+		}
 
 		/* Text */
 		set_cairo_color(cairo, server->theme->osd_label_text_color);
@@ -127,7 +133,11 @@ _osd_update(struct server *server)
 		/* Center workspace indicator on the x axis */
 		x = font_width(&rc.font_osd, server->workspace_current->name);
 		x = (width - x) / 2;
+		if (!hide_boxes) {
 			cairo_move_to(cairo, x, margin * 2 + rect_height);
+		} else {
+			cairo_move_to(cairo, x, (height - font_height(&rc.font_osd)) / 2.0);
+		}
 		//pango_font_description_set_weight(desc, PANGO_WEIGHT_BOLD);
 		pango_layout_set_font_description(layout, desc);
 		pango_font_description_free(desc);