消耗鼠标事件的setToolTipText的解决方法？ [英] Workaround for setToolTipText consuming mouse events?

问题描述

这似乎是SWING验证的问题

This seems to be a verified problem with SWING

http://forums.sun.com/thread.jspa?threadID=385730

我正在尝试设置 JTabbedPane 中选项卡的工具提示文本，但是当我这样做时，我实际上无法再选择该选项卡，因为工具提示添加了一个消耗事件的鼠标侦听器。

I'm currently trying to set the tooltip text of a tab in a JTabbedPane but when I do I can't actually select the tab anymore because the tooltip added a mouse listener that is consuming the events.

是否有人知道允许我保留工具提示和鼠标事件的变通方法？谢谢。

Does anyone know of a workaround that allows me to keep my tooltips AND my mouseevents? Thank you.

根据要求，这里是我的SSCCE

As per request here is my SSCCE

package jtabbedbug;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTabbedPane;

public class JTabBug{

    public static void main(String[] args) {

      JTabbedPane jTabbedPane = new JTabbedPane();
      jTabbedPane.addTab("Red", new JLabel("Roses"));
      jTabbedPane.addTab("Blue", new JLabel("Skies"));
      jTabbedPane.addTab("Green", new JLabel("Grass"));

      for (int i = 0; i < jTabbedPane.getTabCount(); i++) {
        JLabel tabComponent = new JLabel(jTabbedPane.getTitleAt(i));
        tabComponent.setToolTipText("Tip: " + tabComponent.getText());
        jTabbedPane.setTabComponentAt(i, tabComponent);
      }

      JFrame jFrame = new JFrame("Testing");
      jFrame.add(jTabbedPane);
      jFrame.setSize(400, 500);
      jFrame.setVisible(true);
      jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

}

推荐答案

以下是一种解决方法：

import javax.swing.*;
import javax.swing.plaf.*;
import java.awt.event.*;

public class JTabBug{

    public static void main(String[] args) {

      JTabbedPane jTabbedPane = new JTabbedPane()
      {
        @Override
        public String getToolTipText(MouseEvent e)
        {
            int index = ((TabbedPaneUI)ui).tabForCoordinate(this, e.getX(), e.getY());

            if (index != -1)
            {
                JComponent component = (JComponent)getTabComponentAt(index);
                return component.getToolTipText();
            }

            return super.getToolTipText(e);
        }
      };
      ToolTipManager.sharedInstance().registerComponent(jTabbedPane);
      jTabbedPane.addTab("Red", new JLabel("Roses"));
      jTabbedPane.addTab("Blue", new JLabel("Skies"));
      jTabbedPane.addTab("Green", new JLabel("Grass"));

      for (int i = 0; i < jTabbedPane.getTabCount(); i++) {
        JLabel tabComponent = new JLabel(jTabbedPane.getTitleAt(i));
        tabComponent.setToolTipText("Tip: " + tabComponent.getText());
        ToolTipManager.sharedInstance().unregisterComponent(tabComponent);
        jTabbedPane.setTabComponentAt(i, tabComponent);
      }

      JFrame jFrame = new JFrame("Testing");
      jFrame.add(jTabbedPane);
      jFrame.setSize(400, 500);
      jFrame.setVisible(true);
      jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

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