Fit to size of UI element with child Text, if child text transform is scaled?

[mgear]

So is there some way to scale panel to fit child text size, if the text object is scaled?
(and text gameobject has to be scaled to get smoother font…)

here’s my hierarchy:

Canvas

• Panel < this should scale with text size, and it works correctly, but only if text recttransform scale is 1,1,1
• • Text

https://docs.unity3d.com/Manual/HOWTO-UIFitContentSize.html

[Hosnkobf]

AFAIK there is no solution out of the box for your problem… so you would have to write your own content size fitter (maybe you can extend the existing one).

However, it is almost always a bad idea to scale UI elements. It leads to unexpected behavior in many cases. In the very most cases there is a way to achieve your goals without scaling.

[eses]

@mgear

Hi there, @Hosnkobf might be right…

I see you have used stretched panel, so it’s one case. Then again, if you have not split anchors… it’s different.
Maybe just do it with code?

I tried to solve it, have done something similar as a practice. It’s crude but should work. Text can be scaled, I didn’t take into account moving pivots or parent scaling… but this way panel should be fitting text rect that is child of this panel.

NOTE: this only works if child text is centered unlike your pivot, that is in upper left corner. Stretched text won’t work either…

// Dimensions
sizeFinalX = textRt.sizeDelta.x * textRt.localScale.x;
sizeFinalY = textRt.sizeDelta.y * textRt.localScale.y;

splitAnchors = Vector3.Distance(panelRt.anchorMin, panelRt.anchorMax) > 0.001f;

// Anchors split... above not working, use this
if (splitAnchors)
{
  splitAnchors = true;
  panelRt.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, sizeFinalX);
  panelRt.SetSizeWithCurrentAnchors(RectTransform.Axis.Vertical, sizeFinalY);
}
else
{
  // Anchors not split, center pivot
  panelRt.sizeDelta = new Vector2(sizeFinalX, sizeFinalY);
}

…maybe it’s helpful… it does not use scaling, instead panel is resized.

[mgear]

Thanks! Using script would be fine, since i’m settings the text from script anyways…

but got it actually working, had forgotten that can set the canvas dynamic pixel scale instead of scaling text…(to get sharp font), so can remove scaling from text component.

here’s working setup

*Update, using 2019.4.x

[mgear]

Blast from the past… had this issue today, found another workaround:

• Add dummy gameobject before the panel AND scale that down
• then you dont need to have scaled text or panel, which means: content size fitter and layout group will resize the panel correctly to the child text size.

[Fattie]

@mgear your tip on “change dynamic pixels” is incredibly helpful, wish I could send you a million points!

[Fattie]

For the record, @Hosnkobf mentioned

“However, it is almost always a bad idea to scale UI elements.”

While that is true for anything other than text, in Unity, you have to do it to text almost every time since the text engine is comic.

(Usually you just make the point size 10x what you actually want, and, then make the scale .1)

[Hosnkobf]

@Fattie

While that is true for anything other than text, in Unity, you have to do it to text almost every time since the text engine is comic.

Or you simply use TextMesh Pro for all labels in your UI.