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using System;
using UnityEditor.Experimental.UIElements;
using UnityEngine;
using UnityEngine.Experimental.UIElements;
using UnityEditor.Graphing;
using Object = UnityEngine.Object;
namespace UnityEditor.ShaderGraph.Drawing.Inspector
{
public class ShaderPropertyView : VisualElement
{
Action m_ValueAction;
public AbstractMaterialGraph graph { get; private set; }
public IShaderProperty property { get; private set; }
public ShaderPropertyView(AbstractMaterialGraph graph, IShaderProperty property)
{
this.graph = graph;
this.property = property;
var displayNameField = new TextField { name = "displayName", value = property.displayName };
displayNameField.OnValueChanged(OnDisplayNameChanged);
Add(displayNameField);
m_ValueAction = null;
if (property is FloatShaderProperty)
m_ValueAction = FloatField;
else if (property is Vector2ShaderProperty)
m_ValueAction = Vector2Field;
else if (property is Vector3ShaderProperty)
m_ValueAction = Vector3Field;
else if (property is Vector4ShaderProperty)
m_ValueAction = Vector4Field;
if (m_ValueAction != null)
{
Add(new IMGUIContainer(ValueField) { name = "value" });
}
else if (property is ColorShaderProperty)
{
var fProp = (ColorShaderProperty)property;
var colorField = new ColorField { name = "value", value = fProp.value };
colorField.OnValueChanged(OnColorChanged);
Add(colorField);
}
else if (property is TextureShaderProperty)
{
var fProp = (TextureShaderProperty)property;
var objectField = new ObjectField { name = "value", objectType = typeof(Texture), value = fProp.value.texture };
objectField.OnValueChanged(OnTextureChanged);
Add(objectField);
}
else if (property is CubemapShaderProperty)
{
var fProp = (CubemapShaderProperty)property;
var objectField = new ObjectField { name = "value", objectType = typeof(Cubemap), value = fProp.value.cubemap };
objectField.OnValueChanged(OnCubemapChanged);
Add(objectField);
}
Add(new Button(OnClickRemove) { name = "remove", text = "Remove" });
}
void OnColorChanged(ChangeEvent<Color> evt)
{
var fProp = (ColorShaderProperty)property;
if (evt.newValue != fProp.value)
{
fProp.value = evt.newValue;
NotifyNodes();
}
}
void OnTextureChanged(ChangeEvent<Object> evt)
{
var fProp = (TextureShaderProperty)property;
var newValue = (Texture)evt.newValue;
if (newValue != fProp.value.texture)
{
fProp.value.texture = newValue;
NotifyNodes();
}
}
void OnCubemapChanged(ChangeEvent<Object> evt)
{
var fProp = (CubemapShaderProperty)property;
var newValue = (Cubemap)evt.newValue;
if (newValue != fProp.value.cubemap)
{
fProp.value.cubemap = newValue;
NotifyNodes();
}
}
void OnDisplayNameChanged(ChangeEvent<string> evt)
{
if (evt.newValue != property.displayName)
{
property.displayName = evt.newValue;
NotifyNodes();
}
}
void OnClickRemove()
{
graph.owner.RegisterCompleteObjectUndo("Remove Property");
graph.RemoveShaderProperty(property.guid);
NotifyNodes();
}
void ValueField()
{
EditorGUI.BeginChangeCheck();
m_ValueAction();
if (EditorGUI.EndChangeCheck())
NotifyNodes();
}
void NotifyNodes()
{
foreach (var node in graph.GetNodes<PropertyNode>())
node.onModified(node, ModificationScope.Node);
}
void FloatField()
{
var fProp = (FloatShaderProperty)property;
fProp.value = EditorGUILayout.FloatField(fProp.value);
}
void Vector2Field()
{
var fProp = (Vector2ShaderProperty)property;
fProp.value = EditorGUILayout.Vector2Field("", fProp.value);
}
void Vector3Field()
{
var fProp = (Vector3ShaderProperty)property;
fProp.value = EditorGUILayout.Vector3Field("", fProp.value);
}
void Vector4Field()
{
var fProp = (Vector4ShaderProperty)property;
fProp.value = EditorGUILayout.Vector4Field("", fProp.value);
}
}
}