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Add auto font scaling to REPOLabel #19

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Add auto font scaling to REPOLabel #19

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74 changes: 57 additions & 17 deletions MenuLib/MonoBehaviors/REPOLabel.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,21 +5,61 @@ namespace MenuLib.MonoBehaviors;

public sealed class REPOLabel : REPOElement
{
public TextMeshProUGUI labelTMP;

private void Awake()
{
rectTransform = (RectTransform) transform;
labelTMP = GetComponentInChildren<TextMeshProUGUI>();

labelTMP.rectTransform.pivot = rectTransform.pivot = Vector2.zero;
labelTMP.rectTransform.sizeDelta = rectTransform.sizeDelta = new Vector2(200f, 30f);

labelTMP.fontSize = 30;
labelTMP.enableWordWrapping = labelTMP.enableAutoSizing = false;
labelTMP.alignment = TextAlignmentOptions.Left;
labelTMP.margin = Vector4.zero;
}

private void Start() => labelTMP.rectTransform.localPosition = Vector2.zero;
public TextMeshProUGUI labelTMP;
public float maxFontSize = 30f;
public float minFontSize = 20f;
public bool autoScaleToFit = true;

private void Awake()
{
rectTransform = (RectTransform)transform;
labelTMP = GetComponentInChildren<TextMeshProUGUI>();

labelTMP.rectTransform.pivot = rectTransform.pivot = Vector2.zero;
labelTMP.rectTransform.sizeDelta = rectTransform.sizeDelta = new Vector2(200f, 30f);

labelTMP.enableAutoSizing = false;
labelTMP.fontSize = maxFontSize;

labelTMP.enableWordWrapping = false;
labelTMP.alignment = TextAlignmentOptions.Left;
labelTMP.margin = Vector4.zero;
}

private void Start()
{
labelTMP.rectTransform.localPosition = Vector2.zero;

if (autoScaleToFit)
{
ScaleFontToFit();
}
}

public void ScaleFontToFit()
{
labelTMP.fontSize = maxFontSize;
labelTMP.ForceMeshUpdate();

var textBounds = labelTMP.textBounds;
var rectWidth = labelTMP.rectTransform.rect.width;

if (textBounds.size.x > rectWidth)
{
float scaleFactor = rectWidth / textBounds.size.x;
float newSize = Mathf.Max(minFontSize, maxFontSize * scaleFactor * 0.95f);
labelTMP.fontSize = newSize;
labelTMP.ForceMeshUpdate();
}
}

public void SetText(string text, bool scaleToFit = true)
{
labelTMP.text = text;

if (scaleToFit)
{
ScaleFontToFit();
}
}
}