Method destroyDrawItem

MyGUIEngine/src/MyGUI_PolygonalSkin.cpp:207–214

	}

	void PolygonalSkin::destroyDrawItem()
	{
		MYGUI_ASSERT(mRenderItem, "mRenderItem must be not nullptr");

		mNode = nullptr;
		mRenderItem->removeDrawItem(this);
		mRenderItem = nullptr;
	}

	void PolygonalSkin::doRender()
	{