如何在JLabel中获取图像的X，Y坐标

问题描述

我将地图图像放置为JLabel的图标.我正在使用以下代码来获取单击鼠标的位置的X，Y坐标.我已将此代码放在JLabel的MouseClick事件中.

I have an image of a map placed as the icon of a JLabel.I am using following code to get the X,Y coordinates of the location where the mouse is clicked.I have put this code in the MouseClick event of the JLabel.

Point point = MouseInfo.getPointerInfo().getLocation();

double X = point.getX();
double Y = point.getY();

，但是坐标取决于JFrame表单的位置.如果移动表格，则坐标会更改.

but the coordinates depend on the location of the JFrame form. If the form is moved the coordinates change.

反正我可以冻结JFrame吗?或者无论如何，我可以将图像的一个角设为0,0并获得相对于该角的其他坐标吗? (这样我就可以计算出实际坐标)

Is there anyway I can freeze the JFrame?OrIs there anyway I can get a corner of the image as 0,0 and get the other coordinates relative to that? (So I can calculate the actual coordinates)

推荐答案

getLocation 返回相对于屏幕的鼠标坐标.改用MouseEvent中的坐标

label.addMouseListener(new MouseAdapter() {
    @Override
    public void mouseClicked(MouseEvent e) {
         double x = e.getX();
         double y = e.getY();
         ...
    }
});

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