列表表格垫空白（80行）让 pref ≥ ScrollPane 视口：列表区域铺满红框，内容多时照常滚动

viewpanel/src/com/spineview/ObjectPanel.java

@@ -642,6 +642,15 @@ public final class ObjectPanel {
   private static void beginRender(State state) throws Exception {
     call(state.listTable, Obf.TABLE_CLEAR_CHILDREN, new Class<?>[0], void.class);
     state.logBlockStarted = false;
+    // 给列表内容垫一段空白：让列表表格的 pref 高度不小于 ScrollPane 视口，
+    // 这样它就会铺满红框（内容少时也不会缩成一小块），内容多时照常滚动。
+    StringBuilder blank = new StringBuilder();
+    for (int i = 0; i < 80; i++) blank.append('\n');
+    Class<?> cellClass = Class.forName(Obf.CELL, true, state.loader);
+    Class<?> actorClass = Class.forName(Obf.ACTOR, true, state.loader);
+    call(state.listTable, Obf.TABLE_ADD, new Class<?>[] {actorClass}, cellClass,
+        label(state.loader, state.skin, blank.toString()));
+    call(state.listTable, Obf.TABLE_ROW, new Class<?>[0], cellClass);
   }
 
   /**