93 lines
2.5 KiB
C#
93 lines
2.5 KiB
C#
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using UnityEngine;
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using UnityEngine.UI;
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[ExecuteAlways]
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public class CustomWrapGrid : LayoutGroup
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{
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public float spacingX = 0f;
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public float spacingY = 0f;
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private float _containerWidth;
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private Vector2 _currentPos;
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>ܸ߶<DCB8>
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private float _totalHeight;
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protected override void OnEnable()
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{
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base.OnEnable();
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CalculateLayout();
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}
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public override void SetLayoutHorizontal()
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{
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CalculateLayout();
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}
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public override void SetLayoutVertical()
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>ʵ<EFBFBD>֣<EFBFBD><D6A3><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DFBC><EFBFBD>SetLayoutHorizontal<61><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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public override void CalculateLayoutInputVertical()
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{
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CalculateLayout();
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float minHeight = _totalHeight;
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SetLayoutInputForAxis(minHeight, minHeight, 0, 1); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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void CalculateLayout()
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{
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_totalHeight = 0f; // <20><><EFBFBD><EFBFBD><EFBFBD>ܸ߶<DCB8>
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if (rectChildren.Count == 0) return;
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_containerWidth = rectTransform.rect.width - padding.horizontal;
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_currentPos = new Vector2(padding.left, -padding.top);
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float rowHeight = 0f;
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foreach (RectTransform child in rectChildren)
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĶ<D8B5><C4B6><EFBFBD>
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if (!child.gameObject.activeSelf) continue;
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD>
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float childWidth = LayoutUtility.GetPreferredWidth(child);
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float childHeight = LayoutUtility.GetPreferredHeight(child);
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// <20><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
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if (_currentPos.x + childWidth > _containerWidth - padding.right)
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{
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StartNewRow(ref _currentPos, ref rowHeight);
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
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SetChildAlongAxis(child, 0, _currentPos.x, childWidth);
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SetChildAlongAxis(child, 1, _currentPos.y, childHeight);
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// <20><><EFBFBD>µ<EFBFBD>ǰ<EFBFBD><C7B0>״̬
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_currentPos.x += childWidth + spacingX;
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rowHeight = Mathf.Max(rowHeight, childHeight);
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}
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// <20><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>и߶<D0B8>
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_totalHeight = Mathf.Abs(_currentPos.y) + rowHeight - padding.top;
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}
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void StartNewRow(ref Vector2 pos, ref float rowHeight)
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{
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pos.x = padding.left;
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pos.y += rowHeight + spacingY;
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rowHeight = 0f;
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>仯ʱ<E4BBAF>Զ<EFBFBD>ˢ<EFBFBD><CBA2>
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protected override void OnRectTransformDimensionsChange()
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{
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base.OnRectTransformDimensionsChange();
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CalculateLayout();
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}
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#if UNITY_EDITOR
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protected override void OnValidate()
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{
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base.OnValidate();
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CalculateLayout();
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}
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#endif
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}
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