Mouse coordinates relative to Frame

Question

I'm trying to draw Polygons and would like to be able to click on my Frame to get MouseCoordinates so as to turn a mental Image into x/y values more quickly.

I'm using

System.out.println("("+ MouseInfo.getPointerInfo().getLocation().x +",
    "+ MouseInfo.getPointerInfo().getLocation().y +")"); 

but this give me coordinates relative to my actual screen, and not my java window.

How can I make the coordinates show up relative to the Java Window?

Answer 1

You can convert between screen and component coordinates using the SwingUtilties class

The method convertPointFromScreen will take a screen coordinate and convert it to be relative to the component you provide.