Java-如何为 JFrame 设置 setToolTipText [英] Java- How to set setToolTipText for JFrame

问题描述

我想将鼠标移动到使用 g2D.drawRenderedImag 绘制在 JFrame 上的图像上，并在鼠标光标旁边的工具提示文本中显示该像素的 x、y.即:

I would like to move the mouse over an image which was plotted on a JFrame using g2D.drawRenderedImag and display the x, y of that pixel at the tooltip text right next to mouse cursor. i.e:

Graphics2D g2D = (Graphics2D)g;
g2D.drawRenderedImage...

我知道如何读取 x,y 但不知道如何为 JFrame 设置 setToolTipText.你们能帮帮我吗?我的意思是我不能这样做JFrame.setToolTipText !!!!

I know how to read the x,y but don't know how to set setToolTipText for a JFrame. Can you guys help me please? I mean I can not do like this JFrame.setToolTipText !!!!

推荐答案

由于JFrame没有继承自JComponent，所以它没有setToolTipText方法.尝试从 JFrame 获取 JLayeredPane 并调用它的工具提示方法:

Since JFrame doesn't inherit from JComponent, it doesn't have setToolTipText method. Try getting JLayeredPane from JFrame and invoke it's tooltip method:

getLayeredPane().setToolTipText("text");

这篇关于Java-如何为 JFrame 设置 setToolTipText的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！