Also update window title for thumbnail windows (closes #280)

src/feh.h

@@ -138,6 +138,7 @@ void show_mini_usage(void);
 void slideshow_change_image(winwidget winwid, int change, int render);
 void slideshow_pause_toggle(winwidget w);
 char *slideshow_create_name(feh_file * file, winwidget winwid);
+char *thumbnail_create_name(feh_file * file, winwidget winwid);
 void init_keyevents(void);
 void init_buttonbindings(void);
 void feh_event_handle_keypress(XEvent * ev);

src/thumbnail.c

@@ -876,3 +876,16 @@ int feh_thumbnail_setup_thumbnail_dir(void)
 
 	return status;
 }
+
+char *thumbnail_create_name(feh_file * file, winwidget winwid)
+{
+	char *s = NULL;
+
+	if (!opt.thumb_title) {
+		s = estrdup(file->filename);
+	} else {
+		s = estrdup(feh_printf(opt.thumb_title, file, winwid));
+	}
+
+	return(s);
+}

src/winwidget.c

@@ -634,9 +634,14 @@ void winwidget_render_image(winwidget winwid, int resize, int force_alias)
 			feh_draw_info(winwid);
 		if (winwid->errstr)
 			feh_draw_errstr(winwid);
-		if (opt.title && (current_file != NULL)) {
-			/* title might contain e.g. the zoom specifier -> rewrite */
-			char *s = slideshow_create_name(FEH_FILE(current_file->data), winwid);
+		if (opt.title && (winwid->type != WIN_TYPE_THUMBNAIL_VIEWER) &&
+				(winwid->file != NULL)) {
+			char *s = slideshow_create_name(FEH_FILE(winwid->file->data), winwid);
+			winwidget_rename(winwid, s);
+			free(s);
+		} else if (opt.thumb_title && (winwid->type == WIN_TYPE_THUMBNAIL_VIEWER) &&
+				(winwid->file != NULL)) {
+			char *s = thumbnail_create_name(FEH_FILE(winwid->file->data), winwid);
 			winwidget_rename(winwid, s);
 			free(s);
 		}