SamsonGame/Assets/Sources/unity-ui-extensions-master/Scripts/Layout/TileSizeFitter.cs

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2021-12-29 20:50:11 +03:00
/// Credit Ges
/// Sourced from - http://forum.unity3d.com/threads/scripts-useful-4-6-scripts-collection.264161/page-3#post-2280109
using UnityEngine.EventSystems;
namespace UnityEngine.UI.Extensions
{
[ExecuteInEditMode]
[RequireComponent(typeof(RectTransform))]
[AddComponentMenu("Layout/Extensions/Tile Size Fitter")]
public class TileSizeFitter : UIBehaviour, ILayoutSelfController
{
[SerializeField]
private Vector2 m_Border = Vector2.zero;
public Vector2 Border { get { return m_Border; } set { if (SetPropertyUtility.SetStruct(ref m_Border, value)) SetDirty(); } }
[SerializeField]
private Vector2 m_TileSize = Vector2.zero;
public Vector2 TileSize { get { return m_TileSize; } set { if (SetPropertyUtility.SetStruct(ref m_TileSize, value)) SetDirty(); } }
[System.NonSerialized]
private RectTransform m_Rect;
private RectTransform rectTransform { get { if (m_Rect == null) m_Rect = GetComponent<RectTransform>(); return m_Rect; } }
private DrivenRectTransformTracker m_Tracker;
#region Unity Lifetime calls
protected override void OnEnable()
{
base.OnEnable();
SetDirty();
}
protected override void OnDisable()
{
m_Tracker.Clear();
LayoutRebuilder.MarkLayoutForRebuild(rectTransform);
base.OnDisable();
}
#endregion
protected override void OnRectTransformDimensionsChange()
{
UpdateRect();
}
private void UpdateRect()
{
if (!IsActive())
return;
m_Tracker.Clear();
m_Tracker.Add(this, rectTransform,
DrivenTransformProperties.Anchors |
DrivenTransformProperties.AnchoredPosition);
rectTransform.anchorMin = Vector2.zero;
rectTransform.anchorMax = Vector2.one;
rectTransform.anchoredPosition = Vector2.zero;
m_Tracker.Add(this, rectTransform,
DrivenTransformProperties.SizeDeltaX |
DrivenTransformProperties.SizeDeltaY);
Vector2 sizeDelta = GetParentSize() - Border;
if (TileSize.x > 0.001f)
sizeDelta.x -= Mathf.Floor(sizeDelta.x / TileSize.x) * TileSize.x;
else
sizeDelta.x = 0;
if (TileSize.y > 0.001f)
sizeDelta.y -= Mathf.Floor(sizeDelta.y / TileSize.y) * TileSize.y;
else
sizeDelta.y = 0;
rectTransform.sizeDelta = -sizeDelta;
}
private Vector2 GetParentSize()
{
RectTransform parent = rectTransform.parent as RectTransform;
if (!parent)
return Vector2.zero;
return parent.rect.size;
}
public virtual void SetLayoutHorizontal() { }
public virtual void SetLayoutVertical() { }
protected void SetDirty()
{
if (!IsActive())
return;
UpdateRect();
}
#if UNITY_EDITOR
protected override void OnValidate()
{
m_TileSize.x = Mathf.Clamp(m_TileSize.x, 0.001f, 1000f);
m_TileSize.y = Mathf.Clamp(m_TileSize.y, 0.001f, 1000f);
SetDirty();
}
#endif
}
}