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OpenTypeFontPeer: implement canDisplay() and canDisplayUpTo() #68

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OpenTypeFontPeer: implement canDisplay() and canDisplayUpTo() #68

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9 changes: 5 additions & 4 deletions gnu/java/awt/font/OpenTypeFontPeer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -290,14 +290,15 @@ public OpenTypeFontPeer(String name, Map atts)

public boolean canDisplay(Font font, int c)
{
// FIXME: Implement this.
throw new UnsupportedOperationException("Not yet implemented");
return fontDelegate.getGlyphIndex(c) != fontDelegate.getMissingGlyphCode();
}

public int canDisplayUpTo(Font font, CharacterIterator i, int start, int limit)
{
// FIXME: Implement this.
throw new UnsupportedOperationException("Not yet implemented");
for (char c = i.setIndex(start); i.getIndex() < limit; c = i.next())
if (! canDisplay(font, c))
return i.getIndex();
return -1;
}

public String getSubFamilyName(Font font, Locale locale)
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