将鼠标悬停在JButtons上并显示一条消息 [英] Hovering over JButtons and displaying a message
问题描述
我想将鼠标悬停在我的GUI(地图)上的许多JButton上,并显示该位置的名称,例如曼彻斯特和伦敦。我有一个按钮的代码,但它不适用于多个按钮,并打印所有按钮位置的最后一个 out
消息(因为我有10个按钮)。
I want to hover over a number of JButtons on my GUI (map) and display the name of that location e.g. Manchester and London. I have the code working for one button, but it does not work for more than one button and prints the last out
message (as i have 10 buttons) for all button locations.
如果 button1
为真,那么它会通过我的<$ c $在指定区域的GUI上绘制文本c> paintComponent()方法。
If button1
is true it then draws the text on the GUI in the specified area via my paintComponent()
method.
我如何解决这个问题?
button1.addMouseMotionListener(this);
button2.addMouseMotionListener(this);
public void mouseMoved(MouseEvent arg0)
{
if(button1.contains(arg0.getPoint()))
{
button1 = true;
out = "test 1";
repaint();
}
if(!button1.contains(arg0.getPoint()))
{
b1 = false;
out = " ";
repaint();
}//same for all 10 buttons but change variables
}
推荐答案
为什么不使用已存在的工具提示API?
Why not use the tool tip API that already exists?
button.setTooltip("Manchester");
您甚至可以使用HTML文本生成格式化结果。
You even use HTML text to produce formatted results.
button.setTooltip("<html>Manchester<br>53.4800° N, 2.2400° W</html>");
如果图像是嵌入的,你甚至可以提供图像......
If the images are embedded, you can even supply an image...
button.setTooltip("<html><img src=" + getClass().getResource("/someimage") + "/>Manchester<br>53.4800° N, 2.2400° W</html>");
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