Details
-
Enhancement
-
Resolution: Unresolved
-
P4
-
None
-
5.0
-
Cause Known
-
x86
-
windows_xp
Description
FULL PRODUCT VERSION :
$ java -version
java version "1.5.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)
ADDITIONAL OS VERSION INFORMATION :
CYGWIN_NT-5.1 1.5.10(0.116/4/2) 2004-05-25 22:07 i686 unknown unknown Cygwin
A DESCRIPTION OF THE PROBLEM :
Focus goes off screen when tabbing through components in a ScrollPane. Tabbing through components works fine. However when components are within a scrollpane and successive components are off screen, tabbing through them will result in the component with the focus being off screen.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Save the html below as TabBug.html
Save the java program below as TabBug.java
Compile the java program: javac TabBug.java
Run the applet: appletviewer TabBug.html
Tab through the twenty TextFields.
You'll notice that the focus leaves and enters each successive TextField.
Tabbing through the latter TextFields, you'll notice they remain off screen.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
As tabbing through components progresses, the components off screen should become on screen as the focus enters each of the off screen TextFields (the vertical scroll bar should automatically scroll down).
ACTUAL -
Focus sequentially enters each of the successive components as tabbing occurs, however off screen components that have focus are non-viewable (are off screen) making it difficult to update those components (unless the user manually scrolls down to bring the focus into view).
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
TabBug.html
-----------------------------
<html>
<head>
<title>TabBug</title>
</head>
<body>
<applet
codebase="."
code="TabBug"
width="300"
height="100">
</applet>
</body>
</html>
-----------------------------
TabBug.java
-----------------------------
/**
* @author Jeffrey Kutcher
*/
public class TabBug extends javax.swing.JApplet {
public void init() {
javax.swing.JPanel panel = new javax.swing.JPanel();
javax.swing.JScrollPane scrollPane = new javax.swing.JScrollPane();
scrollPane.getVerticalScrollBar().setUnitIncrement(30);
scrollPane.getHorizontalScrollBar().setUnitIncrement(30);
scrollPane.setViewportView(panel);
getContentPane().add(scrollPane);
java.awt.GridBagLayout gbl = new java.awt.GridBagLayout();
java.awt.GridBagConstraints gbc = new java.awt.GridBagConstraints();
panel.setLayout(gbl);
gbc.gridwidth = java.awt.GridBagConstraints.REMAINDER;
java.awt.Container container;
for (int i = 0; i < 20; ++i) {
container = new javax.swing.JTextField("TextField"+i, 15);
gbl.setConstraints(container, gbc);
panel.add(container);
}
}
}
-----------------------------
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Haven't found one yet.
$ java -version
java version "1.5.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)
ADDITIONAL OS VERSION INFORMATION :
CYGWIN_NT-5.1 1.5.10(0.116/4/2) 2004-05-25 22:07 i686 unknown unknown Cygwin
A DESCRIPTION OF THE PROBLEM :
Focus goes off screen when tabbing through components in a ScrollPane. Tabbing through components works fine. However when components are within a scrollpane and successive components are off screen, tabbing through them will result in the component with the focus being off screen.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Save the html below as TabBug.html
Save the java program below as TabBug.java
Compile the java program: javac TabBug.java
Run the applet: appletviewer TabBug.html
Tab through the twenty TextFields.
You'll notice that the focus leaves and enters each successive TextField.
Tabbing through the latter TextFields, you'll notice they remain off screen.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
As tabbing through components progresses, the components off screen should become on screen as the focus enters each of the off screen TextFields (the vertical scroll bar should automatically scroll down).
ACTUAL -
Focus sequentially enters each of the successive components as tabbing occurs, however off screen components that have focus are non-viewable (are off screen) making it difficult to update those components (unless the user manually scrolls down to bring the focus into view).
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
TabBug.html
-----------------------------
<html>
<head>
<title>TabBug</title>
</head>
<body>
<applet
codebase="."
code="TabBug"
width="300"
height="100">
</applet>
</body>
</html>
-----------------------------
TabBug.java
-----------------------------
/**
* @author Jeffrey Kutcher
*/
public class TabBug extends javax.swing.JApplet {
public void init() {
javax.swing.JPanel panel = new javax.swing.JPanel();
javax.swing.JScrollPane scrollPane = new javax.swing.JScrollPane();
scrollPane.getVerticalScrollBar().setUnitIncrement(30);
scrollPane.getHorizontalScrollBar().setUnitIncrement(30);
scrollPane.setViewportView(panel);
getContentPane().add(scrollPane);
java.awt.GridBagLayout gbl = new java.awt.GridBagLayout();
java.awt.GridBagConstraints gbc = new java.awt.GridBagConstraints();
panel.setLayout(gbl);
gbc.gridwidth = java.awt.GridBagConstraints.REMAINDER;
java.awt.Container container;
for (int i = 0; i < 20; ++i) {
container = new javax.swing.JTextField("TextField"+i, 15);
gbl.setConstraints(container, gbc);
panel.add(container);
}
}
}
-----------------------------
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Haven't found one yet.