Shrink label font size until no longer elided?

Unity Engine
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I have a Label object which may contain longer or shorter pieces of text. I would like to shrink the font size of this label until it fits within its bounds (i.e. until Label#isElided returns false). Is there a good way to accomplish this? The stupid way to solve this problem would be to just keep shrinking the font in a loop and waiting for OnGeometryChanged to check the result, but that would take many frames to converge on the correct font size.

There’s also a MeasureTextSize method which returns the amount of space needed for text, but there’s not really an obvious mapping between this and a target font size.

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Hi @dthurn ! FYI, we plan to add built-in support for “Auto-Size” in the future. It’s also briefly discussed in this thread .

In the meantime, it will be a bit hacky, but it’s something you could implement yourself using a mix of OnGeometryChangedEvent and MeasureTextSize. Once you detect the text no longer fits in the container, you could run a binary search using MeasureTextSize to find the new font size that fits the container.

1 Like
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Thanks Hugo! Is this something that’s likely to exist in the next 6 months, or more of a long-term ambition?

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This is a high-priority feature, and it’s been frequently requested by users. Unfortunately, as much as I would like to implement it shortly, I can’t commit to a specific date.

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Hi folks,
I’ve created a tool for auto-sizing labels if you need it, check it out on GitHub.