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From "Chunrong Lai (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-4641) [classlib][awt][font] Harmony has problem with some fonts in Fedora
Date Thu, 16 Aug 2007 12:03:31 GMT
[classlib][awt][font] Harmony has problem with some fonts in Fedora
-------------------------------------------------------------------

                 Key: HARMONY-4641
                 URL: https://issues.apache.org/jira/browse/HARMONY-4641
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
         Environment: Linux32(Fedora)
            Reporter: Chunrong Lai



This issue does not happen in Win32.
Here's the simple test demonstrating the problem, one needs to copy simsun.ttc from windows
to /usr/share/fonts/simsun.ttf before run it:

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

public class Test {
    public static void main(String argv[]) {
        JFrame frame = new JFrame("test");
        JLabel label = new JLabel("Hello World");
        final GraphicsEnvironment g = GraphicsEnvironment.getLocalGraphicsEnvironment();
        final String[] fonts = g.getAvailableFontFamilyNames();
        for (int i = 0; i < fonts.length; i ++) {
           System.out.println("Font " + i + ": " + fonts[i]);
        }
        label.setFont(new Font("SimSun", Font.PLAIN, 32));
        
        frame.add(label);
        frame.pack();
        frame.setVisible(true);
    }
}

Other VMs are OK with this example but Harmony crashes with below StackTrace

SIGSEGV in VM code.
Stack trace:
  0: ?? (??:-1)
  1: ?? (??:-1)
  2: Java_org_apache_harmony_awt_gl_font_LinuxNativeFont_drawStringNative (/home/clai1/harmony.0723/trunk/working_classlib/modules/awt/src/main/native/linuxfont/unix/LinuxNativeFont.c:1496)
  3: 0x063DFAF4  <Generated stub>
  4: org/apache/harmony/awt/gl/linux/DrawableTextRenderer.drawNormalString(Lorg/apache/harmony/awt/gl/CommonGraphics2D;Ljava/lang/String;DD)V
(DrawableTextRenderer.java:132)
  5: org/apache/harmony/awt/gl/linux/DrawableTextRenderer.drawString(Ljava/awt/Graphics2D;Ljava/lang/String;FF)V
(DrawableTextRenderer.java:63)
  6: org/apache/harmony/awt/gl/linux/XGraphics2D.drawString(Ljava/lang/String;FF)V (XGraphics2D.java:556)
  7: org/apache/harmony/awt/gl/CommonGraphics2D.drawString(Ljava/lang/String;II)V (CommonGraphics2D.java:654)
  8: javax/swing/plaf/basic/BasicGraphicsUtils.drawStringUnderlineCharAt(Ljava/awt/Graphics;Ljava/lang/String;III)V
(BasicGraphicsUtils.java:144)
  9: org/apache/harmony/x/swing/Utilities.drawString(Ljava/awt/Graphics;Ljava/lang/String;IILjava/awt/FontMetrics;Ljava/awt/Color;I)V
(Utilities.java:503)
 10: javax/swing/plaf/basic/BasicLabelUI.paintEnabledText(Ljavax/swing/JLabel;Ljava/awt/Graphics;Ljava/lang/String;II)V
(BasicLabelUI.java:133)
 11: javax/swing/plaf/basic/BasicLabelUI.paint(Ljava/awt/Graphics;Ljavax/swing/JComponent;)V
(BasicLabelUI.java:99)
 12: javax/swing/plaf/ComponentUI.update(Ljava/awt/Graphics;Ljavax/swing/JComponent;)V (ComponentUI.java:38)
 13: javax/swing/JComponent.paintComponent(Ljava/awt/Graphics;)V (JComponent.java:897)

  It is also noticed that Harmony returns much less fonts from getAvailableFontFamilyNames(),
compared to other VMs.
  There are other fonts also have this issue, for example, AR PL ShanHeiSun Uni, PMingLiu,
etc. We also notice that some fonts would be OK for such unage, Tahoma is such example.

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