[HARMONY-4825] [classlib][awt] Can not use XORMode to erase what was drawn previously

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Component/s: Classlib
• Environment: Win32
• Estimated Complexity: Novice
• Assignee: Alexey Petrenko
• Reporter: Chunrong Lai
• Created: 20/Sep/07 07:33
• Updated: 18/Oct/07 14:52
• Resolved: 18/Oct/07 14:52

Description

A common trick in XORMode is to draw something, in XORMode, a second time to erase what was drawn the first time. But this does not work in Harmony to me. See below reproducer:

import java.awt.*;
import javax.swing.*;

public class DrawStringTest extends JFrame {
int xPosition = 100;
int yPosition = 100;
public static void main(String[] args)

{ DrawStringTest aTest = new DrawStringTest(); aTest.setSize(800, 600); aTest.show(); }

public DrawStringTest(){}
public void paint(Graphics g){
super.paint(g);
System.out.println("drawString at " + xPosition + ", " + yPosition);
g.drawString("XOR mode drawString test", xPosition, yPosition);
g.setXORMode(getBackground());
for (int i = 0; i < 5; i ++)

{ g.drawString("XOR mode drawString test", xPosition, yPosition); //used to erase what was drawn previously xPosition += 100; yPosition += 100; if (xPosition > 600) xPosition = 100; if (yPosition > 400) yPosition = 100; g.drawString("XOR mode drawString test", xPosition, yPosition); }

g.setPaintMode();
}
}