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SceneDrawer.cs
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SceneDrawer.cs
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using TriInspector;
using TriInspector.Drawers;
using UnityEditor;
using UnityEngine;
[assembly: RegisterTriAttributeDrawer(typeof(SceneDrawer), TriDrawerOrder.Decorator, ApplyOnArrayElement = true)]
namespace TriInspector.Drawers
{
public class SceneDrawer : TriAttributeDrawer<SceneAttribute>
{
public override TriExtensionInitializationResult Initialize(TriPropertyDefinition propertyDefinition)
{
var type = propertyDefinition.FieldType;
if (type != typeof(string))
{
return "Scene attribute can only be used on field with string type";
}
return base.Initialize(propertyDefinition);
}
public override TriElement CreateElement(TriProperty property, TriElement next)
{
return new SceneElement(property);
}
private class SceneElement : TriElement
{
private readonly TriProperty _property;
private SceneAsset _sceneAsset;
public SceneElement(TriProperty property)
{
_property = property;
}
protected override void OnAttachToPanel()
{
base.OnAttachToPanel();
_property.ValueChanged += OnValueChanged;
RefreshSceneAsset();
}
protected override void OnDetachFromPanel()
{
_property.ValueChanged -= OnValueChanged;
base.OnDetachFromPanel();
}
public override float GetHeight(float width)
{
return EditorGUIUtility.singleLineHeight;
}
public override void OnGUI(Rect position)
{
EditorGUI.BeginChangeCheck();
var asset = EditorGUI.ObjectField(position, _property.DisplayName, _sceneAsset,
typeof(SceneAsset), false);
if (EditorGUI.EndChangeCheck())
{
var path = AssetDatabase.GetAssetPath(asset);
_property.SetValue(path);
}
}
private void OnValueChanged(TriProperty property)
{
RefreshSceneAsset();
}
private void RefreshSceneAsset()
{
_sceneAsset = AssetDatabase.LoadAssetAtPath<SceneAsset>(_property.Value as string);
}
}
}
}