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Date: Mon, 24 Sep 2007 06:06:51 -0700 (PDT)
From: "Xiao-Feng Li (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Commented: (HARMONY-4791) [classlib][awt][image] Harmony has
 problem in drawing medium-or-large size of png file if not guarded by
 MediaTracker
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    [ https://issues.apache.org/jira/browse/HARMONY-4791?page=3Dcom.atlassi=
an.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529853 ]=20

Xiao-Feng Li commented on HARMONY-4791:
---------------------------------------

=EF=BC=A3=EF=BD=88=EF=BD=95=EF=BD=8E=EF=BD=92=EF=BD=8F=EF=BD=8E=EF=BD=87=EF=
=BC=8C=E3=80=80I=E3=80=80=EF=BD=8A=EF=BD=95=EF=BD=93=EF=BD=94=E3=80=80=EF=
=BD=92=EF=BD=85=EF=BD=81=EF=BD=8C=EF=BD=89=EF=BD=9A=EF=BD=85=EF=BD=84=E3=80=
=80=EF=BD=94=EF=BD=88=EF=BD=85=E3=80=80=EF=BD=89=EF=BD=8D=EF=BD=81=EF=BD=87=
=EF=BD=85=E3=80=80=EF=BD=89=EF=BD=93=E3=80=80=EF=BC=91=EF=BC=90=EF=BC=AD=EF=
=BD=89=EF=BD=8C=EF=BD=8C=EF=BD=89=EF=BD=8F=EF=BD=8E=E3=80=80=EF=BC=B2=EF=BC=
=AD=EF=BC=A2=E3=80=80=EF=BD=8D=EF=BD=8F=EF=BD=8E=EF=BD=85=EF=BD=99=EF=BC=81=
=E3=80=80=EF=BC=B0=EF=BD=92=EF=BD=8F=EF=BD=82=EF=BD=81=EF=BD=82=EF=BD=8C=EF=
=BD=99=E3=80=80=EF=BD=94=EF=BD=88=EF=BD=85=EF=BD=99=E3=80=80=EF=BD=81=EF=BD=
=92=EF=BD=85=E3=80=80=EF=BD=94=EF=BD=8F=EF=BD=8F=E3=80=80=EF=BD=88=EF=BD=85=
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=BD=85=E3=80=80=EF=BD=8C=EF=BD=8F=EF=BD=81=EF=BD=84=EF=BD=85=EF=BD=84=E3=80=
=80=EF=BD=93=EF=BD=99=EF=BD=8E=EF=BD=83=EF=BD=88=EF=BD=92=EF=BD=8F=EF=BD=8E=
=EF=BD=8F=EF=BD=95=EF=BD=93=EF=BD=8C=EF=BD=99=EF=BC=9F=E3=80=80

=EF=BC=A1=EF=BD=8E=EF=BD=99=EF=BD=97=EF=BD=81=EF=BD=99=EF=BC=8C=E3=80=80=EF=
=BC=A9=E3=80=80=EF=BD=94=EF=BD=88=EF=BD=89=EF=BD=8E=EF=BD=8B=E3=80=80=EF=BD=
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=BC=8E=E3=80=80

> [classlib][awt][image] Harmony has problem in drawing medium-or-large siz=
e of png file if not guarded by MediaTracker
> -------------------------------------------------------------------------=
--------------------------------------------
>
>                 Key: HARMONY-4791
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4791
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>         Environment: Win32
>            Reporter: Chunrong Lai
>            Assignee: Alexei Zakharov
>         Attachments: 10million.PNG, 40million.PNG
>
>
>  Sometimes I even observed that Harmony crashes in multi-threading enviro=
nment but I have not reproducer yet.
>  Anyway with below reproducer Harmony draw a glittering 10million.png and=
 the 40million.png breaks finally.
> import java.io.*;
> import java.awt.*;
> import java.awt.image.*;
> import javax.swing.*;
> public class DrawImageTest extends JFrame {
>    public Image image;
>    public static void  main(String[] args){
>       DrawImageTest aTest =3D new DrawImageTest();
>       if(args.length <1) {
>          System.out.println("Please input a valid image name");
>          System.exit(0);
>       }
>       aTest.setSize(800, 600);
>       aTest.readImage(args[0]);
>       aTest.show();
>    }
>    public DrawImageTest(){}
>    public void readImage(String imageName){
>        if(image =3D=3D null) {
>          image =3D Toolkit.getDefaultToolkit().getImage(imageName);
>          /*******
>          MediaTracker imageTracker =3D new MediaTracker(new JPanel());
>          imageTracker.addImage(image, 0);
>          try{
>           imageTracker.waitForID(0);
>          }catch(InterruptedException e){}
>          ********/
>          if(image =3D=3D null) System.out.println("we get an image of nul=
l");
>          else              System.out.println("we get an image of width "=
 + image.getWidth(this) + " height " + image.getHeight(this));
>        }
>    }  =20
>    public void paint(Graphics g){
>        super.paint(g);
>        g.drawImage(image, 0, 0, null);
>    }
> }

--=20
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