59 lines
1.9 KiB
C#
59 lines
1.9 KiB
C#
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using System;
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using System.Reflection;
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using UnityEngine;
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using Object = UnityEngine.Object;
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using UnityEditor.UIElements;
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using UnityEngine.UIElements;
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namespace UnityEditor.ShaderGraph.Drawing.Controls
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{
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[AttributeUsage(AttributeTargets.Property)]
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class ObjectControlAttribute : Attribute, IControlAttribute
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{
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string m_Label;
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public ObjectControlAttribute(string label = null)
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{
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m_Label = label;
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}
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public VisualElement InstantiateControl(AbstractMaterialNode node, PropertyInfo propertyInfo)
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{
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return new ObjectControlView(m_Label, node, propertyInfo);
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}
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}
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class ObjectControlView : VisualElement
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{
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AbstractMaterialNode m_Node;
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PropertyInfo m_PropertyInfo;
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public ObjectControlView(string label, AbstractMaterialNode node, PropertyInfo propertyInfo)
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{
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if (!typeof(Object).IsAssignableFrom(propertyInfo.PropertyType))
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throw new ArgumentException("Property must be assignable to UnityEngine.Object.");
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m_Node = node;
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m_PropertyInfo = propertyInfo;
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label = label ?? propertyInfo.Name;
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if (!string.IsNullOrEmpty(label))
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Add(new Label { text = label });
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var value = (Object)m_PropertyInfo.GetValue(m_Node, null);
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var objectField = new ObjectField { objectType = propertyInfo.PropertyType, value = value };
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objectField.RegisterValueChangedCallback(OnValueChanged);
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Add(objectField);
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}
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void OnValueChanged(ChangeEvent<Object> evt)
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{
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var value = (Object)m_PropertyInfo.GetValue(m_Node, null);
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if (evt.newValue != value)
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{
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m_Node.owner.owner.RegisterCompleteObjectUndo("Change + " + m_Node.name);
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m_PropertyInfo.SetValue(m_Node, evt.newValue, null);
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}
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}
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}
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}
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