Fix inability to reset filetype colors without restarting

0ce42df prevented read_color_theme_file() from being
executed when applying settings (from a cfg file)
if the filetype colors setting was set to "-". Resetting
custom filetype colors happens in that function though and
thus wouldn't work. You had to restart Rockbox for the
setting to be applied (at which point read_color_theme_file()
is called from filetype_init() which is called by the init()
function in main.c)

The safety check has been moved from settings.c directly into
read_color_theme_file(). This has the added
advantage that it will also apply during the init process
where there existed no check before (prevents the problem
mentioned in 2e3a8c7).

Change-Id: I547fe180f0bac79889bf2c44778bb1cc4f9d4307

1 files changed, 2 insertions, 0 deletions

diff --git a/apps/filetypes.c b/apps/filetypes.c
index 280cd8c4b4..0aebc7855b 100644
--- a/apps/filetypes.c
+++ b/apps/filetypes.c
@@ -257,6 +257,8 @@ void read_color_theme_file(void) {
     for (i = 0; i < MAX_FILETYPES; i++) {
         custom_colors[i] = -1;
     }
+    if (!global_settings.colors_file[0] || global_settings.colors_file[0] == '-')
+        return;
     snprintf(buffer, MAX_PATH, THEME_DIR "/%s.colours",
              global_settings.colors_file);
     fd = open(buffer, O_RDONLY);