DebugGraphics : DebugGraphics « Swing « Java Tutorial






  1. Java Tutorial
  2. Swing
  3. DebugGraphics
DebugGraphics SettingsDescription
DebugGraphics.BUFFERED_OPTIONCauses a window to pop up, displaying the drawing of the double-buffered image
DebugGraphics.FLASH_OPTIONCauses the drawing to be done more slowly, flashing between steps
DebugGraphics.LOG_OPTIONCauses a message to be printed to the screen as each step is done
DebugGraphics.NONE_OPTIONDisables all options


DebugGraphics
import javax.swing.DebugGraphics;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.RepaintManager;

public class DebugGraphicsDemo {

  public static void main(String[] a) {

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JButton bn = new JButton();

    RepaintManager repaintManager = RepaintManager.currentManager(bn);
    repaintManager.setDoubleBufferingEnabled(false);

    bn.setDebugGraphicsOptions(DebugGraphics.BUFFERED_OPTION | DebugGraphics.FLASH_OPTION
        | DebugGraphics.LOG_OPTION);

    frame.add(bn);

    frame.setSize(300, 300);
    frame.setVisible(true);

    frame.add(bn);
  }

}








14.124.DebugGraphics
14.124.1.DebugGraphicsDebugGraphics