Allow multiple freespace items (fixes issue #607)

doc/tint2.md

@@ -323,7 +323,7 @@ panel_gradient_id = 5
     * `S` shows the Systray (also called notification area)
     * `B` shows the Battery status
     * `C` shows the Clock
-    * `F` adds an extensible spacer (freespace). Has no effect if `T` is also present. *(since 0.12)*
+    * `F` adds an extensible spacer (freespace). You can specify more than one. Has no effect if `T` is also present. *(since 0.12)*
     * `E` adds an executor plugin. You can specify more than one. *(since 0.12.4)*
     * `:` adds a separator. You can specify more than one. *(since 0.13.0)*
 

src/freespace/freespace.c

@@ -33,28 +33,49 @@
 void init_freespace_panel(void *p)
 {
 	Panel *panel = (Panel *)p;
-	FreeSpace *freespace = &panel->freespace;
 
-	if (!freespace->area.bg)
-		freespace->area.bg = &g_array_index(backgrounds, Background, 0);
-	freespace->area.parent = p;
-	freespace->area.panel = p;
-	snprintf(freespace->area.name, sizeof(freespace->area.name), "Freespace");
-	freespace->area.size_mode = LAYOUT_FIXED;
-	freespace->area.resize_needed = 1;
-	freespace->area.on_screen = TRUE;
-	freespace->area._resize = resize_freespace;
+	// Make sure this is only done once if there are multiple items
+	if (panel->freespace_list)
+		return;
+
+	for (size_t k = 0; k < strlen(panel_items_order); k++) {
+		if (panel_items_order[k] == 'F') {
+			FreeSpace *freespace = (FreeSpace *) calloc(1, sizeof(FreeSpace));
+			panel->freespace_list = g_list_append(panel->freespace_list, freespace);
+			if (!freespace->area.bg)
+				freespace->area.bg = &g_array_index(backgrounds, Background, 0);
+			freespace->area.parent = p;
+			freespace->area.panel = p;
+			snprintf(freespace->area.name, sizeof(freespace->area.name), "Freespace");
+			freespace->area.size_mode = LAYOUT_FIXED;
+			freespace->area.resize_needed = 1;
+			freespace->area.on_screen = TRUE;
+			freespace->area._resize = resize_freespace;
+		}
+	}
+}
+
+void cleanup_freespace(Panel *panel)
+{
+	if (panel->freespace_list)
+		g_list_free_full(panel->freespace_list, free);
+	panel->freespace_list = NULL;
 }
 
 int freespace_get_max_size(Panel *p)
 {
 	// Get space used by every element except the freespace
 	int size = 0;
+	int spacers = 0;
 	for (GList *walk = p->area.children; walk; walk = g_list_next(walk)) {
 		Area *a = (Area *)walk->data;
 
-		if (a->_resize == resize_freespace || !a->on_screen)
+		if (!a->on_screen)
 			continue;
+		if (a->_resize == resize_freespace) {
+			spacers++;
+			continue;
+		}
 
 		if (panel_horizontal)
 			size += a->width + p->area.paddingx;
@@ -67,7 +88,7 @@ int freespace_get_max_size(Panel *p)
 	else
 		size = p->area.height - size - top_bottom_border_width(&p->area) - p->area.paddingxlr;
 
-	return size;
+	return size / spacers;
 }
 
 gboolean resize_freespace(void *obj)

src/freespace/freespace.h

@@ -12,7 +12,9 @@ typedef struct FreeSpace {
 	Area area;
 } FreeSpace;
 
-void cleanup_freespace();
+struct Panel;
+
+void cleanup_freespace(struct Panel *panel);
 void init_freespace_panel(void *panel);
 
 gboolean resize_freespace(void *obj);

src/panel.c

@@ -131,6 +131,8 @@ void cleanup_panel()
 	for (int i = 0; i < num_panels; i++) {
 		Panel *p = &panels[i];
 
+		cleanup_freespace(p);
+
 		free_area(&p->area);
 		if (p->temp_pmap)
 			XFreePixmap(server.display, p->temp_pmap);
@@ -495,8 +497,8 @@ gboolean resize_panel(void *obj)
 			}
 		}
 	}
-	if (panel->freespace.area.on_screen)
-		resize_freespace(&panel->freespace);
+	for (GList *l = panel->freespace_list; l; l = g_list_next(l))
+		resize_freespace(l->data);
 	return FALSE;
 }
 
@@ -574,6 +576,7 @@ void set_panel_items_order(Panel *p)
 
 	int i_execp = 0;
 	int i_separator = 0;
+	int i_freespace = 0;
 	for (int k = 0; k < strlen(panel_items_order); k++) {
 		if (panel_items_order[k] == 'L') {
 			p->area.children = g_list_append(p->area.children, &p->launcher);
@@ -593,8 +596,12 @@ void set_panel_items_order(Panel *p)
 		}
 		if (panel_items_order[k] == 'C')
 			p->area.children = g_list_append(p->area.children, &p->clock);
-		if (panel_items_order[k] == 'F')
-			p->area.children = g_list_append(p->area.children, &p->freespace);
+		if (panel_items_order[k] == 'F') {
+			GList *item = g_list_nth(p->freespace_list, i_freespace);
+			i_freespace++;
+			if (item)
+				p->area.children = g_list_append(p->area.children, (Area *)item->data);
+		}
 		if (panel_items_order[k] == ':') {
 			GList *item = g_list_nth(p->separator_list, i_separator);
 			i_separator++;

src/panel.h

@@ -128,7 +128,7 @@ typedef struct Panel {
 #endif
 
 	Launcher launcher;
-	FreeSpace freespace;
+	GList *freespace_list;
 	GList *separator_list;
 	GList *execp_list;
 

src/tint2conf/properties.c

@@ -2117,7 +2117,7 @@ void panel_add_item(GtkWidget *widget, gpointer data)
 						   itemsColValue, &value,
 						   -1);
 
-		if (!panel_contains(value) || g_str_equal(value, ":")) {
+		if (!panel_contains(value) || g_str_equal(value, ":") || g_str_equal(value, "E") || g_str_equal(value, "F")) {
 			GtkTreeIter iter;
 			gtk_list_store_append(panel_items, &iter);
 			gtk_list_store_set(panel_items, &iter,
@@ -2126,15 +2126,7 @@ void panel_add_item(GtkWidget *widget, gpointer data)
 							   -1);
 			if (g_str_equal(value, ":")) {
 				separator_create_new();
-			}
-		} else if (!panel_contains(value) || g_str_equal(value, "E")) {
-			GtkTreeIter iter;
-			gtk_list_store_append(panel_items, &iter);
-			gtk_list_store_set(panel_items, &iter,
-							   itemsColName, g_strdup(name),
-							   itemsColValue, g_strdup(value),
-							   -1);
-			if (g_str_equal(value, "E")) {
+			} else if (g_str_equal(value, "E")) {
 				execp_create_new();
 			}
 		}