Swing - JButton and Unicode

- write a property file with normal characters like 'o?, 閠? 閠ag鑢e,..."

- run native2ascii program (http://java.sun.com/j2se/1.5.0/docs/tooldocs/solaris/native2ascii.html)

- load the property file in a map and when you wanna display a text, do:

button.setText(myMap.get("jButtonText"));

suparenoa at 2007-7-8 23:50:16 >

Thanks for responding.

The code is as I've posted it.

JButton button = new JButton();

button.setFont(new Font("Arial Unicode MS", Font.PLAIN , 20));

button.setText("\u0615");

I want the JButtons in the application to have phonetic characters as labels. I'm not sure I fully understand the suggestion regarding the property file. Is it not possible to use Unicode codepoints to directly label the button?

Thanks

DumDuma at 2007-7-8 23:50:16 >

Sorry :)

public static void main(String[]args)

{

JFrame environmentFrame = new JFrame();

JPanel symbolPanel = new JPanel();

JButton button = new JButton();

button.setFont(new Font("Arial Unicode MS", Font.BOLD, 14));

button.setText("\u0615");

symbolPanel.add(button);

environmentFrame.add(symbolPanel);

environmentFrame.pack();

environmentFrame.setVisible(true);

}

Thanks again

DumDuma at 2007-7-8 23:50:16 >

The things I'm expecting to see form part of the International Phonetic Alphabet. The font "Arial Unicode MS" supports them, and the Unicode codepoints I'm using are correct. When I do the suggested test to see what fonts can display the characters, the Arial Unicode doesn't show up. But it is definitely on the system and other applications can use it. In fact, when I display the Unicode codepoints as part of a HTML document within a JEditorPane, they all display perfectly. So why won't the JButton display them?

DumDuma at 2007-7-8 23:50:16 >

You have the wrong code; IPA characters range U+0250 through U+02AF. See the charts for details http://www.unicode.org/charts/symbols.html

Edit: It looks like you have confused decimal notation with hexadecimal notation. The decimal number 615 is 267 in base 16, and U+0267 happens to be one of the IPA characters. This means that these two lines are equivalent:char c = 615;

char c = '\u0267';

jsalonena at 2007-7-8 23:50:16 >

> Will JButton only accept Unicode characters that are

> in hex notation, or can one use the decimal ones

> also?

JButton doesn't give a rat's posterior how you wrote your Java code. It just gets a String, which is a sequence of characters. Those characters could be constants that you typed into Java code or they could be read from a file or a database. It makes no difference to JButton where they came from, in fact it has no way of knowing that. It just has a String.

In the example that jsalonen just posted, the two lines of code are equivalent. That means they have the same effect. And the resulting character isn't in hex notation, and it isn't a decimal number. It's just a character that can be represented in several ways in Java code.

DrClapa at 2007-7-8 23:50:16 >

> there is no decimal notation, only hex

Actually that's a misstatement as the unicode escapes \uXXXX are not specific to literal strings or characters, you can use them anywhere in the code.

The only notation there is for literal char constants is of the form 'x' where x is either one character (unicode-escaped or not) or one of the two-character escape codes \\, \r, \n, \', etc.

jsalonena at 2007-7-21 17:02:27 >