Question

我为GWT编写了一个google可视化树形图包装器。我可以使用它成功绘制树图。但我坚持使用鼠标事件。如何添加mouseover / mouseout事件呢？

public class TreeMap extends Visualization<TreeMap.Options>
{
 public static class Options extends AbstractDrawOptions {
   public static Options create() {
       return JavaScriptObject.createObject().cast();
   }

   protected Options() {
   }




 }

 public static final String PACKAGE = "treemap";

 public TreeMap() {
   super();
 }

 public TreeMap(AbstractDataTable data, Options options) {
   super(data, options);
 }

 @Override
 protected native JavaScriptObject createJso(Element parent) /*-{
   return new $wnd.google.visualization.TreeMap(parent);

 }-*/;
 }

Answer 1

只需添加 -

public final void addOnMouseOverHandler(OnMouseOverHandler handler) {
   Handler.addHandler(this, "onmouseover", handler);
}

完整示例here

GWT树形图添加mouseover / mouseout事件

1 个答案: