javafx2中的Menuitem工具提示 [英] Menuitem tooltip in javafx2

问题描述

javafx2中有两个问题.

There are two questions in javafx2..

1. 如何为菜单项设置工具提示
2. 如何设置菜单项的大小(宽度)

请告诉我您的答案.

推荐答案

两个问题的答案直接指向类

The answer to both questions direct to the class CustomMenuItem, which wraps an arbitrary Node and puts it into a menu. For example, the following creates a rectangle within a menu with a certain width, height and ToolTip:

public void start(final Stage stage) throws Exception {
    Group root = new Group();

    final Menu menu1 = new Menu("File");
    MenuBar menuBar = new MenuBar();
    menuBar.getMenus().add(menu1);

    MenuItem menu12 = new MenuItem("Open");

    menu1.getItems().add(menu12);

    Rectangle rect = new Rectangle();
    rect.setHeight(100);
    rect.setWidth(100);

    Tooltip t = new Tooltip("A Rectangle ToolTip");
    Tooltip.install(rect, t);

    CustomMenuItem customMenuItem = new CustomMenuItem(rect);
    customMenuItem.setHideOnClick(false);

    menu1.getItems().add(customMenuItem);

    root.getChildren().add(menuBar);
    Scene scene = new Scene(root,800,600);
    stage.setScene(scene);
    stage.show();
  }

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