Editor: Enable display of characters unsupported by chosen editor font #7753
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It was noticed, that in some contexts Swing was able to display characters unsupported by the currently chosen font. The problem was observed with emojis. Investigation showed, that the problem appears if a font is explicitly constructed via the constructor, but vanishes if the font is accessed via StyleContext#getFont. The difference is that StyleContext#getFont returns a CompositeFont, that fallsback to other fonts for undefined glyphs. As CompositeFont is located in the sun.font package, it can't be accessed directly. Instead the font acccess via the DefaultStyleContext is used.
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It was noticed, that in some contexts Swing was able to display characters unsupported by the currently chosen font. The problem was observed with emojis. Investigation showed, that the problem appears if a font is explicitly constructed via the constructor, but vanishes if the font is accessed via StyleContext#getFont.
The difference is that StyleContext#getFont returns a CompositeFont, that fallsback to other fonts for undefined glyphs.
As CompositeFont is located in the sun.font package, it can't be accessed directly. Instead the font acccess via the DefaultStyleContext is used.
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