improve setting windows geometry

src/main.c

@@ -355,7 +355,6 @@ create_dialog (void)
     gtk_window_set_type_hint (GTK_WINDOW (dlg), GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
   gtk_window_set_title (GTK_WINDOW (dlg), options.data.dialog_title);
   gtk_widget_set_name (dlg, "yad-dialog-window");
-  gtk_window_set_default_size (GTK_WINDOW (dlg), options.data.width, options.data.height);
 
   g_signal_connect (G_OBJECT (dlg), "delete-event", G_CALLBACK (gtk_main_quit), NULL);
   g_signal_connect (G_OBJECT (dlg), "key-press-event", G_CALLBACK (keys_cb), NULL);

src/util.c

@@ -624,8 +624,10 @@ parse_geometry ()
       y = atoi (ptr);
     }
 
-  options.data.width = w;
-  options.data.height = h;
+  if (w != -1)
+    options.data.width = w;
+  if (h != -1)
+    options.data.height = h;
   options.data.posx = x;
   options.data.posy = y;
   options.data.use_posx = options.data.use_posy = usexy;