Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Bug ID 4132856: JTextField with a fractionally-scaled fontdoesn'twork correctly in 1.5.0_02.



Well, it was worth a try....

I just tried hacking together this workaround based on fiddling with fractional metrics; it doesn't make any difference.

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

public class ScaledText extends JFrame
{
public static void main(String[] args)
{
try
{
UIManager.setLookAndFeel (UIManager.getSystemLookAndFeelClassName());
}
catch (Throwable t)
{
t.printStackTrace();
}
ScaledText text = new ScaledText();
text.show();
}


    public ScaledText()
    {
        setDefaultCloseOperation(EXIT_ON_CLOSE);

Font font1 = new Font("Courier",Font.PLAIN,12);
Font font2 = font1.deriveFont (AffineTransform.getScaleInstance(1.5,1.5));
Font font3 = font1.deriveFont (AffineTransform.getScaleInstance(2,2));


        JTextField text1 = new JTextField(font1.toString());
                   text1.setFont(font1);
        JTextField text2 = new JTextField(font2.toString());
                   text2.setFont(font2);
        JTextField text3 = new JTextField(font3.toString());
                   text3.setFont(font3);

        XTextField text4 = new XTextField(font1.toString());
                   text4.setFont(font1);
        XTextField text5 = new XTextField(font2.toString());
                   text5.setFont(font2);
        XTextField text6 = new XTextField(font3.toString());
                   text6.setFont(font3);

        Box b = new Box(BoxLayout.Y_AXIS);
        b.add(Box.createVerticalStrut(30));
        b.add(text1);
        b.add(Box.createVerticalStrut(30));
        b.add(text2);
        b.add(Box.createVerticalStrut(30));
        b.add(text3);
        b.add(Box.createVerticalStrut(30));
        b.add(text4);
        b.add(Box.createVerticalStrut(30));
        b.add(text5);
        b.add(Box.createVerticalStrut(30));
        b.add(text6);
        getContentPane().add("Center", b);

setTitle("ScaledText Bug - Java "+System.getProperty ("java.version"));

        pack();
    }

class XTextField extends JTextField
{
public XTextField(String title)
{
super(title);
}
public void paint(Graphics g)
{
Graphics2D g2d = (Graphics2D)g;
g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
super.paint(g2d);
}
}
}



On 29-May-05, at 3:01 PM, Adrian Sutton wrote:

Interesting, thanks for the pointer.  There might be a connection,
but this specific bug only exists in Apple's implementation of Java
5; it doesn't exist in Apple's port of 1.4.2_07, and it
doesn't exist
in Sun's implementation on Windows or Linux.


As best I can tell, support for fractional font widths is off by default
on Windows and thus the bug doesn't show up, but it does exist. The
only reason I discovered it is because in specified JREs on specific
configurations of Solaris 9 (which our client happened to be using)
fractional font metrics support is on by default and thus the bug shows
up.


From looking at the behavior I'd be extremely surprised if this were in
fact a different bug. Sadly, the suggested work around (setting the
i18n system property) doesn't appear to have an effect on OS X.


Regards,

Adrian Sutton.


_______________________________________________ Do not post admin requests to the list. They will be ignored. Java-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/java-dev/email@hidden

This email sent to email@hidden
References: 
 >RE: Bug ID 4132856: JTextField with a fractionally-scaled fontdoesn'twork correctly in 1.5.0_02. (From: "Adrian Sutton" <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.