56 lines
1.5 KiB
C#
56 lines
1.5 KiB
C#
using UnityEngine;
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namespace ImageCropperNamespace
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{
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public class SelectionGraphicsSynchronizer : MonoBehaviour
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{
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[SerializeField]
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private ImageCropper manager;
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[SerializeField]
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private RectTransform selectionBottomLeft;
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[SerializeField]
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private RectTransform selectionTopRight;
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private RectTransform viewport;
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private RectTransform selectionGraphics;
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private Vector2 bottomLeftPrevPosition, topRightPrevPosition;
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private void Awake()
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{
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viewport = manager.Viewport;
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selectionGraphics = manager.SelectionGraphics;
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}
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private void Start()
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{
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bottomLeftPrevPosition = selectionBottomLeft.position;
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topRightPrevPosition = selectionTopRight.position;
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Synchronize( selectionBottomLeft.position, selectionTopRight.position );
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}
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public void Synchronize()
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{
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Vector2 bottomLeftPosition = selectionBottomLeft.position;
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Vector2 topRightPosition = selectionTopRight.position;
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if( bottomLeftPosition != bottomLeftPrevPosition || topRightPosition != topRightPrevPosition )
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Synchronize( bottomLeftPosition, topRightPosition );
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}
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private void Synchronize( Vector2 bottomLeft, Vector2 topRight )
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{
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Vector2 position = viewport.InverseTransformPoint( bottomLeft );
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Vector2 size = (Vector2) viewport.InverseTransformPoint( topRight ) - position;
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selectionGraphics.anchoredPosition = position;
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selectionGraphics.sizeDelta = size;
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bottomLeftPrevPosition = bottomLeft;
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topRightPrevPosition = topRight;
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}
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}
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} |