54 lines
1.8 KiB
C#
54 lines
1.8 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 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 EnumControlAttribute : Attribute, IControlAttribute
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{
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string m_Label;
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public EnumControlAttribute(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 EnumControlView(m_Label, node, propertyInfo);
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}
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}
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class EnumControlView : VisualElement
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{
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AbstractMaterialNode m_Node;
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PropertyInfo m_PropertyInfo;
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public EnumControlView(string label, AbstractMaterialNode node, PropertyInfo propertyInfo)
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{
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styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/EnumControlView"));
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m_Node = node;
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m_PropertyInfo = propertyInfo;
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if (!propertyInfo.PropertyType.IsEnum)
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throw new ArgumentException("Property must be an enum.", "propertyInfo");
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Add(new Label(label ?? ObjectNames.NicifyVariableName(propertyInfo.Name)));
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var enumField = new EnumField((Enum)m_PropertyInfo.GetValue(m_Node, null));
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enumField.RegisterValueChangedCallback(OnValueChanged);
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Add(enumField);
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}
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void OnValueChanged(ChangeEvent<Enum> evt)
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{
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var value = (Enum)m_PropertyInfo.GetValue(m_Node, null);
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if (!evt.newValue.Equals(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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