Name: dk106046 Date: 04/08/2003
OPERATING SYSTEM(S):
Red hat 7.3 & 8
Turbo 7 & 8
Possibly other Linux
FULL JDK VERSION(S):
1.4.2-beta-b19
Run the following applet on Linux where acceleration is on
ie in XF86Config the device "NoAccel" is commented out
DrawTextTest.html
-----------------
<body>
<applet code="DrawTextTest.class" height=350 width=350>
</applet>
</body>
DrawTextTest.java
-----------------
import java.awt.Graphics;
import java.awt.Font;
public class DrawTextTest extends java.applet.Applet {
public void paint(Graphics screen) {
Font f = new Font("serif", Font.PLAIN, 48);
screen.setFont(f);
screen.drawString("Test string", 50, 50);
}
}
The problem is that the text is distorted. The top part of the chars
repeats vertically. (FYI It seems that the problem could be in X11TextRenderer_md.c
with the way checkPixmap is used. Increasing the value of TEXT_BM_HEIGHT in
so that only one pixmap is being used by AWTDrawGlyphList eradicates this problem.)
======================================================================
###@###.### 2003-10-31
Found also on SuSE 8.2 Pro with GlobalSuite test case
font-render/awt/two/CharViewMultiLine.java
and promoted J2SE 1.5.0 b25
HW: Ati 3D Rage Pro
See attached snapshot
###@###.### 2003-11-12
Another platform RedHat AS 3.0 has the same behaviour with GlobalSuite test cases:
font-render/awt/two/CharView
font-render/awt/two/CharViewMultiLine
HW: Ati 3D Rage Pro
###@###.###: 2003-12-16
Another platform Mercury 12c has the same behaviour with GlobalSuite test cases:
font-render/awt/two/CharView
font-render/awt/two/CharViewMultiLine
video card: ATI Technologies Inc 3D Rage Pro AGP 1X/2X rev 92
Name: pr15447 Date: 01/22/2004
FULL PRODUCT VERSION :
1.4.2_01
FULL OS VERSION :
Linux linux 2.4.18-4GB #1 Wed MAr 27 13:57:05 UTC 2002 i686 unknown
EXTRA RELEVANT SYSTEM CONFIGURATION :
Using SunOne studio 5.0
A DESCRIPTION OF THE PROBLEM :
When I try to print text at a 90 degree angle, I get a repeated text occurence. For instance, If I tried the string "Degrees Celcuis", it will print "iusciusciuscius". The frequency of repitition seems random to me. The rotation is successful, but the text is printed incorrectly. When I remove the rotate function, the text is printed properly.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
//aString is a string
//g2 is a Graphics2D object
g2.rotate(-Math.PI/2,10,10);
g2.drawString(aString,10,10);
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
if aString = "Degrees Celcuis", I expected "Degrees Celcuis" to display on the screen after my Graphics2D object has beenb rotated and I call drawString.
ACTUAL -
Rather, I get "iusciusciuscius" to display.
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import javax.swing.*;
import java.awt.*;
public class DrawStringBug extends javax.swing.JFrame {
public DrawStringBug() {
initComponents();
this.setSize(200,300);
}
public void paint(Graphics g) {
Font axisFont = new Font("Arial",Font.PLAIN,10);
Graphics2D g2 = (Graphics2D)g;
g2.rotate(-Math.PI/2,100,100);
g2.drawString("ABCDEFGHIJKLMNOPQRSTUVWXYZ",-50,100);
}
private void initComponents() {//GEN-BEGIN:initComponents
getContentPane().setLayout(null);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
}
});
pack();
private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
System.exit(0);
}
public static void main(String args[]) {
new DrawStringBug().show();
}
}
---------- END SOURCE ----------
(Review ID: 209907)
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- duplicates
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JDK-4873840 Strings are not rendered correctly on RedHatAdvancedServer2.1 32bit.
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(1 relates to)