Alignment in JTextArea/JTextPane

[RAJEEV BAHL]

Please give example to align text scifucally right align in JTextArea. If not possible in this then in JTextPane. Thanks in advance

[Madhav Lakkapragada]

Hope you can get some help from the tutorials at Sun,
incase you have not yet checked them.
regds.
- satya

[RAJEEV BAHL]

As described I go through the example. I am able to set fot, size but unable to Align. Following is the code:

DefaultStyledDocument dSDoc = new DefaultStyledDocument();
String initString[] =
{ "\nINDIAN OIL CORPORATION LTD.\n" +
"GUWAHATI-SILIGURI PRODUCTS PIPELINE\n" +
"Sector-III Noonmati Guwahati-20\n" +
"=========================\n\n",
"Tank Out Turn Report\n",
"Date : " + sdf.format(progDate),
"Station : " + (String)stationJComboBox.getSelectedItem() + stationTypeString,
};
SimpleAttributeSet[] attrs = initAttributes(initString.length);
try{
for (int i = 0; i < initString.length; i ++) {
dSDoc.insertString(dSDoc.getLength(), initString[i] + newline,
attrs[i]);
}
}catch (BadLocationException ble) {
System.err.println("Couldn't insert initial text.");
}
jTextPane = new JTextPane();
Dimension pSize = new Dimension(450, 550);
jTextPane.setPreferredSize(pSize);
JTextPane jTextPane2 = new JTextPane(dSDoc);
pSize = new Dimension(450, 200);
jTextPane2.setPreferredSize(pSize);
jTextPane.insertComponent(jTextPane2);
jTextPane.insertComponent(jTable);
jTextPane.insertComponent(jTextArea1);
jTextPane.setEditable(false);

private String newline = "\n";
protected SimpleAttributeSet[] initAttributes(int length) {
SimpleAttributeSet[] attrs = new SimpleAttributeSet[length];
attrs[0] = new SimpleAttributeSet();
StyleConstants.setFontFamily(attrs[0], "SansSerif");
StyleConstants.setFontSize(attrs[0], 10);
StyleConstants.setAlignment(attrs[0], StyleConstants.ALIGN_CENTER);
attrs[1] = new SimpleAttributeSet();
StyleConstants.setFontFamily(attrs[1], "SansSerif");
StyleConstants.setFontSize(attrs[1], 12);
StyleConstants.setBold(attrs[1], true);
StyleConstants.setUnderline(attrs[1], true);
StyleConstants.setAlignment(attrs[1], StyleConstants.ALIGN_CENTER);
attrs[2] = new SimpleAttributeSet();
StyleConstants.setFontFamily(attrs[2], "SansSerif");
StyleConstants.setFontSize(attrs[2], 12);
StyleConstants.setAlignment(attrs[2], StyleConstants.ALIGN_RIGHT);
attrs[3] = new SimpleAttributeSet();
StyleConstants.setFontFamily(attrs[3], "SansSerif");
StyleConstants.setFontSize(attrs[3], 12);
StyleConstants.setAlignment(attrs[3], StyleConstants.ALIGN_JUSTIFIED);
return attrs;
}

[Jim Ronholm]

I know this is an old question (more than a year old) but I had a similar question and found that isn't very well answered (anywhere) - at least not in simple terms. I did find something that led me to the right answer in the JDC at Sun.
Summary:

use JTextPane

create attributes instance

set a paragraph alignment attribute using StyleConstants class

apply the attribute set to the paragraph style of the JTextPane

output = new JTextPane();

SimpleAttributeSet attribs = new SimpleAttributeSet();
StyleConstants.setAlignment(attribs , StyleConstants.ALIGN_RIGHT);
output.setParagraphAttributes(attribs,true);

I hope that clarifies it - ask if it doesn't.