mathe/Library/PackageCache/com.unity.shadergraph@14.0.8/Editor/Drawing/Controls/PopupControl.cs

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C#
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2024-09-20 20:30:10 +02:00
using System;
using System.Reflection;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor.UIElements;
using UnityEngine.UIElements;
namespace UnityEditor.ShaderGraph.Drawing.Controls
{
[AttributeUsage(AttributeTargets.Property)]
class PopupControlAttribute : Attribute, IControlAttribute
{
string m_Label;
//string[] m_Entries;
public PopupControlAttribute(string label = null)
{
m_Label = label;
//m_Entries = entries;
}
public VisualElement InstantiateControl(AbstractMaterialNode node, PropertyInfo propertyInfo)
{
return new PopupControlView(m_Label, node, propertyInfo);
}
}
[Serializable]
struct PopupList
{
public int selectedEntry;
public string[] popupEntries;
public PopupList(string[] entries, int defaultEntry)
{
popupEntries = entries;
selectedEntry = defaultEntry;
}
}
class PopupControlView : VisualElement
{
AbstractMaterialNode m_Node;
PropertyInfo m_PropertyInfo;
PopupField<string> m_PopupField;
public PopupControlView(string label, AbstractMaterialNode node, PropertyInfo propertyInfo)
{
styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/PopupControlView"));
m_Node = node;
m_PropertyInfo = propertyInfo;
Type type = propertyInfo.PropertyType;
if (type != typeof(PopupList))
{
throw new ArgumentException("Property must be a PopupList.", "propertyInfo");
}
Add(new Label(label ?? ObjectNames.NicifyVariableName(propertyInfo.Name)));
var value = (PopupList)propertyInfo.GetValue(m_Node, null);
m_PopupField = new PopupField<string>(new List<string>(value.popupEntries), value.selectedEntry);
m_PopupField.RegisterValueChangedCallback(OnValueChanged);
Add(m_PopupField);
}
void OnValueChanged(ChangeEvent<string> evt)
{
var value = (PopupList)m_PropertyInfo.GetValue(m_Node, null);
value.selectedEntry = m_PopupField.index;
m_PropertyInfo.SetValue(m_Node, value, null);
m_Node.owner.owner.RegisterCompleteObjectUndo("Change " + m_Node.name);
}
}
}