I need to draw custom shapes. Now when a user clicks on several points on the panel I create a shape using a polygon.

public void mouseClicked(MouseEvent e) {
            polygon.addPoint(e.getX(), e.getY());
            repaint();
        }

But I don't know if this is the best way to draw custom shapes.

It should be possible to edit a drawn shape:

• resize
• change its fill color
• change the stroke color
• copy/paste it
• move a single point of the polygon
• ...

I have seen people creating an own class implementing the Shape class and using a GeneralPath. But again I have no idea if this is a good way.

Now I can create my own shape with a polygon (or with a GeneralPath) but I have no clue how to attach all the edit functions to my own shape (the edit functions I mean the resize, move, etc from above).

I hope somebody could show me a way to do this or maybe write a little bit of code to demonstrate this.

Thanks in advance!!