private void toolStripButton4_Click(object sender, EventArgs e)
        {
            //锁定或者解除锁定所有的层
            //只有当前层全部都冻结的时候,才设置为全部不冻结,否则全部冻结
            bool s = true;

            for (int i = 0; i < LayerList.ItemList.Count; ++i)
            {
                EXBoolListViewSubItem item = (EXBoolListViewSubItem)LayerList.Items[i].SubItems[4];
                if (item != null)
                {
                    if (!item.BoolValue)
                    {
                        s = false;
                    }
                }
            }

            for (int i = 0; i < LayerList.ItemList.Count; ++i)
            {
                EXBoolListViewSubItem item = (EXBoolListViewSubItem)LayerList.Items[i].SubItems[4];
                if (item != null)
                {
                    item.BoolValue = !s;
                    string layer = LayerList.Items[i].SubItems[1].Text;
                    Program.engine.MainLevel.LockLayer(layer, !s);
                }
            }

            LayerList.Invalidate();
            OperationTooltip.Text = "就绪";
        }
        private void OnActiveLayer(EXListViewSubItemBase _item, string oldText, string newText)
        {
            EXBoolListViewSubItem item = (EXBoolListViewSubItem)_item;

            if (item.BoolValue)
            {
                //解除其它层的激活
                for (int i = 0; i < LayerList.ItemList.Count; ++i)
                {
                    EXBoolListViewSubItem iter = (EXBoolListViewSubItem)LayerList.ItemList[i].SubItemList[1];
                    if (iter != item && iter.BoolValue)
                    {
                        iter.SetValue(false);
                        LayerList.Invalidate(iter.Bounds);
                    }
                }

                // 激活编辑器中的对应层
                ListView.SelectedListViewItemCollection sel = LayerList.SelectedItems;
                if (sel.Count > 0)
                {
                    Program.engine.MainLevel.SetActiveLayer(sel[0].SubItems[1].Text);
                }

                //在右侧的列表中显示当前激活层中的所有actor
                UpdateActorList(sel[0].SubItems[1].Text);
            }
            else
            {
                //不能直接关闭激活层的激活,只能通过激活其它层来替换当前激活层
                item.BoolValue = true;
                LayerList.Invalidate(item.Bounds);
            }
            OperationTooltip.Text = "就绪";
        }