[Bug]: Font::getStringWidth gives incorrect width for non-latin text

[royhcj]

Detailed steps on how to reproduce the bug

The string width from Font::getStringWidth with a text containing non-latin characters is short by a few pixels.
When drawing the text with the calculated width, the text is displayed truncated with ellipses at the end.

String text = CharPointer_UTF8("Test Label中文測試"); // A string containing Chinese characters
auto font = Font(FontOptions( "Arial", 24.0, Font::plain));
int width = font.getStringWidth( text );

g.drawText( text, 0, 0, width, height, Justification::left ); // The text is rendered as "Test Label中文..."

Note that the returned width is correct when using Chinese fonts such as "PingFang TC".

What is the expected behaviour?

Font::getStringWidth should give a correct width for strings containing non-latin characters.
Hence, the rendered text should not be truncated.

Operating systems

macOS

What versions of the operating systems?

Sonoma 14.5

Architectures

ARM

Stacktrace

No response

Plug-in formats (if applicable)

No response

Plug-in host applications (DAWs) (if applicable)

No response

Testing on the develop branch

The bug is present on the develop branch

Code of Conduct

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