使用SWT创建自定义按钮

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class CustomButtonExample {

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Custom Button Example");

        CustomButton customButton = new CustomButton(shell, SWT.PUSH);
        customButton.setText("Click me!");
        customButton.setBounds(50, 50, 100, 50);

        shell.pack();
        shell.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();
    }

    private static class CustomButton extends Button {

        public CustomButton(Shell parent, int style) {
            super(parent, style);
            addPaintListener(e -> {
                GC gc = e.gc;
                Color background = getBackground();
                gc.setBackground(background);
                gc.fillRectangle(getBounds());
                gc.drawText(getText(), 10, 10);
            });
        }
    }
}