51 lines
1.2 KiB
C#
51 lines
1.2 KiB
C#
using System;
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using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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namespace Paroxe.PdfRenderer.Internal.Viewer
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{
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public class PDFViewerLeftPanelScrollbar : UIBehaviour
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{
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private CanvasGroup m_CanvasGroup;
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private Scrollbar m_Scrollbar;
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private float m_Alpha = 1.0f;
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public float Alpha
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{
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get { return m_Alpha; }
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set
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{
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if (Math.Abs(m_Alpha - value) > float.Epsilon)
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{
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m_Alpha = value;
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UpdateCanvasGroup();
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}
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}
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}
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private void LateUpdate()
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{
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UpdateCanvasGroup();
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}
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private void UpdateCanvasGroup()
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{
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if (m_Scrollbar == null)
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m_Scrollbar = GetComponent<Scrollbar>();
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if (m_CanvasGroup == null)
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m_CanvasGroup = GetComponent<CanvasGroup>();
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if (m_Scrollbar.size >= 0.98f && Math.Abs(m_CanvasGroup.alpha) > 0.01f)
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{
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m_CanvasGroup.alpha = 0.0f;
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}
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else if (m_Scrollbar.size < 0.98f && Math.Abs(m_CanvasGroup.alpha - 1.0f * Alpha) > 0.01f)
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{
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m_CanvasGroup.alpha = 1.0f * Alpha;
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}
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}
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}
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} |