82 lines
2.8 KiB
C#
82 lines
2.8 KiB
C#
using UnityEngine;
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using UnityEngine.EventSystems;
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using static TMPro.SpriteAssetUtilities.TexturePacker_JsonArray;
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namespace HeavenStudio.Editor.Track
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{
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public class ZoomComponent : MonoBehaviour, IScrollHandler
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{
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[SerializeField] float _minimumScale = 0.5f;
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[SerializeField] Vector2 _initialScale = Vector2.one;
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[SerializeField] float _maximumScale = 3f;
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[SerializeField] float _scaleIncrement = .5f;
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[HideInInspector] Vector3 _scale;
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RectTransform _thisTransform;
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private void Awake()
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{
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_initialScale = transform.localScale;
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_thisTransform = transform as RectTransform;
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_scale.Set(_initialScale.x, _initialScale.y, 1);
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_thisTransform.localScale = _scale;
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}
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public void OnScroll(PointerEventData eventData)
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{
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Vector2 relativeMousePosition;
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RectTransformUtility.ScreenPointToLocalPointInRectangle(_thisTransform, Input.mousePosition, Editor.instance.EditorCamera, out relativeMousePosition);
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float delta = eventData.scrollDelta.y;
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delta = Mathf.Clamp(delta, -1f, 1f);
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_scaleIncrement = 0.1f * _scale.x;
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if (delta > 0)
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{
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ZoomIn(delta, relativeMousePosition);
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}
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else if (delta < 0)
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{
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ZoomOut(delta, relativeMousePosition);
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}
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}
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public void ZoomIn(float delta, Vector2 relativeMousePosition)
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{
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if (!(_scale.x < _maximumScale)) return;
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if (Timeline.instance.InteractingWithEvents() || SpecialTimeline.instance.InteractingWithEvents()) return;
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float incre = _scaleIncrement * delta;
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var newScale = Mathf.Clamp(_scale.x + incre, _minimumScale, _maximumScale);
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_scale.Set(newScale, 1, 1);
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_thisTransform.localScale = _scale;
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relativeMousePosition = new Vector2(relativeMousePosition.x, 0);
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_thisTransform.anchoredPosition -= (relativeMousePosition * incre);
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}
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public void ZoomOut(float delta, Vector2 relativeMousePosition)
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{
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if (!(_scale.x > _minimumScale)) return;
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if (Timeline.instance.InteractingWithEvents() || SpecialTimeline.instance.InteractingWithEvents()) return;
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float incre = _scaleIncrement * -delta;
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var newScale = _scale.x - incre;
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_scale.Set(newScale, 1, 1);
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_thisTransform.localScale = _scale;
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relativeMousePosition = new Vector2(relativeMousePosition.x, 0);
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_thisTransform.anchoredPosition += (relativeMousePosition * incre);
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}
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public void ResetZoom()
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{
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_scale.Set(100, 1, 1);
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_thisTransform.localScale = _scale;
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}
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}
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} |