DebugGraphics class of java

[Prashobh Mallu]

Hello Guys,

I need your help to know about the DebugGraphics class of java. There are some inbuilt classes of java which are very complicated and rarely used. I think DebugGraphics class id one them. I am not able to understand the exact use of DebugGraphics class of java. If anyone have sound knowledge about the this DebugGraphics class of java, then please let know it. I would really appreciate your any help over DebugGraphics class.

[Zecho]

Hi friend,

A DebugGraphics class of java is taken from the 'java.awt.Graphics' package. This java class extends 'Graphics' interface of java. A 'java.awt.Graphics' package of java is also the sub-package of 'java.lang.Object'. A DebugGraphics class support various fields such as NONE_OPTION , BUFFERED_OPTION, LOG_OPTION, FLASH_OPTION. There are total three constructors of this java inbuilt class.

[opaper]

Please go through the following example of DebugGraphics class of java:

import javax.swing.DebugGraphics;

public class DebugGraphicsDM {

  public static void main(String[] am) {

    JFrame frame1 = new JFrame();
    frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JButton bn1 = new JButton();

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

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

    frame1.add(bn1);

    frame1.setSize(400, 300);
    frame1.setVisible(true);

    frame1.add(bn);
  }

}

[MindSpace]

Hi friend,

Please review following some methods of DebugGraphics class:

• setXORMode(Color aClr)
• setLogStream(PrintStream strm)
• setFlashTime(int flashTm)
• setFlashCount(int flashCnt)
• setFlashColor(Color flashClr)

[Modifier]

Hi,

I suggest you to study following example of 'DebugGraphics class'. I which I have used 'BUFFERED_OPTION' property of DebugGraphics class:

import javax.swing.DebugGraphics;
import javax.swing.RepaintManager;
public class GPHMain 
{
  public static void main(String[] aln) {
    JFrame FN = new JFrame();
    FN.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JButton CJ = new JButton();

    RepaintManager XN = RepaintManager.currentManager(CJ);
    XN.setDoubleBufferingEnabled(false);

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

    FN.add(CJ);

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

    FN.add(CJ);
  }
}

[Praetor]

Conductors of DebugGraphics class of java:

1. DebugGraphics(Graphics grphs, JComponent cmpnt)
2. DebugGraphics(Graphics grphcs)
3. DebugGraphics()
4. draw3DRect(int x1, int y1, int width, int height, boolean bl)
5. create(int x1, int y1, int width, int height)