Make scrollbar autohideable

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/renderers/curses/curses.c b/lib/renderers/curses/curses.c
index 852eb88..1f81775 100644
--- a/lib/renderers/curses/curses.c
+++ b/lib/renderers/curses/curses.c
@@ -186,11 +186,12 @@ render(const struct bm_menu *menu)
 
     uint32_t count, cl = 1;
     const uint32_t lines = getmaxy(curses.stdscr);
-    const int32_t prefix_x = (menu->prefix ? bm_utf8_string_screen_width(menu->prefix) : 0);
-    const int32_t offset_x = (menu->scrollbar ? 2 : 0);
     if (lines > 1) {
         uint32_t displayed = 0;
         struct bm_item **items = bm_menu_get_filtered_items(menu, &count);
+        const bool scrollbar = (menu->scrollbar > BM_SCROLLBAR_NONE && (menu->scrollbar != BM_SCROLLBAR_AUTOHIDE || count > lines) ? true : false);
+        const int32_t offset_x = (scrollbar ? 2 : 0);
+        const int32_t prefix_x = (menu->prefix ? bm_utf8_string_screen_width(menu->prefix) : 0);
         for (uint32_t i = (menu->index / (lines - 1)) * (lines - 1); i < count && cl < lines; ++i) {
             bool highlighted = (items[i] == bm_menu_get_highlighted_item(menu));
             int32_t color = (highlighted ? 2 : (bm_menu_item_is_selected(menu, items[i]) ? 1 : 0));
@@ -204,7 +205,7 @@ render(const struct bm_menu *menu)
             ++displayed;
         }
 
-        if (menu->scrollbar) {
+        if (scrollbar) {
             attron(COLOR_PAIR(1));
             uint32_t percent = (menu->index / (float)(count - 1)) * (displayed - 1);
             mvprintw(1 + percent, 0, "▒");