Added a command to refresh the thumbnails

README.md

@@ -93,6 +93,7 @@ The following general key commands are available:
     A            Toggle visibility of alpha-channel, i.e. transparency
 
     r            Reload image
+    R            Refresh thumbnails
     D            Remove image from file list and go to next image
 
 

commands.c

@@ -94,6 +94,24 @@ bool it_toggle_bar(arg_t a) {
 	return true;
 }
 
+bool it_refresh_thumbs(arg_t a) {
+    int i = 0;
+    if (mode == MODE_THUMB) {
+        win_set_cursor(&win, CURSOR_WATCH);
+        while (i < filecnt) {
+            if (!tns_load(&tns, i, &files[i], true, false)) {
+                remove_file(i, false);
+                tns.dirty = true;
+                if (tns.sel >= tns.cnt)
+                    tns.sel = tns.cnt - 1;
+            } else {
+                i++;
+            }
+        }
+    }
+    return true;
+}
+
 bool it_reload_image(arg_t a) {
 	if (mode == MODE_IMAGE) {
 		load_image(fileidx);

commands.h

@@ -45,6 +45,7 @@ bool it_quit(arg_t);
 bool it_switch_mode(arg_t);
 bool it_toggle_fullscreen(arg_t);
 bool it_toggle_bar(arg_t);
+bool it_refresh_thumbs(arg_t);
 bool it_reload_image(arg_t);
 bool it_remove_image(arg_t);
 bool i_navigate(arg_t);

config.def.h

@@ -64,6 +64,7 @@ static const keymap_t keys[] = {
 	{ false,  XK_b,             it_toggle_bar,        (arg_t) None },
 
 	{ false,  XK_r,             it_reload_image,      (arg_t) None },
+	{ false,  XK_R,             it_refresh_thumbs,    (arg_t) None },
 	{ false,  XK_D,             it_remove_image,      (arg_t) None },
 
 	{ false,  XK_n,             i_navigate,           (arg_t) +1 },

sxiv.1

@@ -117,6 +117,9 @@ Toggle visibility of alpha-channel, i.e. image transparency.
 .B r
 Reload image.
 .TP
+.B R
+Refresh thumbnails.
+.TP
 .B D
 Remove current image from file list and go to next image.
 .SH THUMBNAIL KEYBOARD COMMANDS