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67 行
1.4 KiB
67 行
1.4 KiB
using System;
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using UnityEngine;
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using UnityEngine.RMGUI;
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namespace RMGUI.GraphView
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{
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public class DataContainer <T> : VisualContainer where T : GraphElementData
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{
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T m_DataProvider;
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public T dataProvider
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{
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get { return m_DataProvider; }
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set
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{
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if (m_DataProvider == value)
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return;
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RemoveWatch();
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m_DataProvider = value;
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OnDataChanged();
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AddWatch();
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}
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}
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public TK GetData<TK>() where TK : T
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{
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return dataProvider as TK;
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}
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void AddWatch()
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{
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if (m_DataProvider != null && panel != null)
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// TODO: consider a disposable handle?
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DataWatchService.AddDataSpy(this, m_DataProvider, OnDataChanged);
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}
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void RemoveWatch()
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{
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try
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{
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if (m_DataProvider != null && panel != null)
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DataWatchService.RemoveDataSpy(m_DataProvider, OnDataChanged);
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}
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catch (Exception e)
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{
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if (m_DataProvider != null)
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{
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Debug.LogWarningFormat("No datawatch is registered to: {0} it is type {1}", m_DataProvider.name, m_DataProvider.GetType());
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}
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Debug.LogException(e, m_DataProvider);
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}
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}
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public DataContainer()
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{
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// trigger data source reset when entering leaving panel
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onEnter += AddWatch;
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onLeave += RemoveWatch;
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}
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// called when Serialized object has changed
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// only works while widget is in a panel
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public virtual void OnDataChanged()
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{}
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}
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}
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