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Testing for Unicode support in an SWT font [message #457454]

Sat, 25 June 2005 09:44

Dan Winterstein

Messages: 33
Registered: July 2009

Member

How can you test for Unicode support in an SWT font?
That is, test whether a font has a glyph for a character, or will it
just draw a box.
In an AWT Font, you can call the canDisplay(char c) method. Is there an
SWT equivalent?
Thank you for any help.
-Dan

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Re: Testing for Unicode support in an SWT font [message #457458 is a reply to message #457454]

Sat, 25 June 2005 11:43

Dan Winterstein

Messages: 33
Registered: July 2009

Member

The following is ugly but works:

/**
* Test whether or not a font can display a specific unicode character.
* This creates and disposes an awt font, so it is probably not
efficient. Caching the answers is recommended.
*/
public static boolean unicodeCharTest(Font swtFont, char c) {
FontData fd = swtFont.getFontData()[0];
java.awt.Font awtFont = new java.awt.Font(fd.getName(),0,fd.getHeight());
return awtFont.canDisplay(c);
}

Daniel Winterstein wrote:
> How can you test for Unicode support in an SWT font?
> That is, test whether a font has a glyph for a character, or will it
> just draw a box.
> In an AWT Font, you can call the canDisplay(char c) method. Is there an
> SWT equivalent?
> Thank you for any help.
> -Dan

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