当用户单击JFrame的角以调整大小并在周围拖动鼠标时，随着用户拖动，JFrame将根据鼠标的当前位置进行重新绘制。您如何听这些事件？

以下是我目前尝试的内容：

public final class TestFrame extends JFrame {
    public TestFrame() {
        this.addComponentListener(new ComponentAdapter() {
            public void componentResized(ComponentEvent e) {
                // This is only called when the user releases the mouse button.
                System.out.println("componentResized");
            }
        });
    }

    // These methods do not appear to be called at all when a JFrame
    // is being resized.
    @Override
    public void setSize(int width, int height) {
        System.out.println("setSize");
    }

    @Override
    public void setBounds(Rectangle r) {
        System.out.println("setBounds A");
    }

    @Override
    public void setBounds(int x, int y, int width, int height) {
        System.out.println("setBounds B");
    }
}

当用户围绕鼠标拖动时，如何确定和约束用户如何调整窗口大小（基于窗口的当前纵横比）？

最佳答案

You probably need to override something like validate (don't forget to call the super). Of course, that still may not work if you are using a windowing system to configured to drag outlines.