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

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C#
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2024-09-20 20:30:10 +02:00
using System;
using System.Linq;
using System.Reflection;
using UnityEngine;
using UnityEngine.UIElements;
using UnityEngine.Assertions;
using UnityEditor.Graphing;
namespace UnityEditor.ShaderGraph.Drawing.Controls
{
[AttributeUsage(AttributeTargets.Property)]
class TextControlAttribute : Attribute, IControlAttribute
{
string m_Label;
public TextControlAttribute(string label = null)
{
m_Label = label;
}
public VisualElement InstantiateControl(AbstractMaterialNode node, PropertyInfo propertyInfo)
{
if (!TextControlView.validTypes.Contains(propertyInfo.PropertyType))
return null;
return new TextControlView(m_Label, node, propertyInfo);
}
}
class TextControlView : VisualElement
{
public static Type[] validTypes = { typeof(string) };
AbstractMaterialNode m_Node;
PropertyInfo m_PropertyInfo;
string m_Value;
int m_UndoGroup = -1;
public TextControlView(string label, AbstractMaterialNode node, PropertyInfo propertyInfo)
{
styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/TextControlView"));
m_Node = node;
m_PropertyInfo = propertyInfo;
label = label ?? ObjectNames.NicifyVariableName(propertyInfo.Name);
var container = new VisualElement { name = "container" };
var thisLabel = new Label(label);
container.Add(thisLabel);
m_Value = GetValue();
string value = null;
var field = new TextField { value = m_Value };
field.RegisterCallback<MouseDownEvent>(Repaint);
field.RegisterCallback<MouseMoveEvent>(Repaint);
field.RegisterValueChangedCallback(evt =>
{
value = GetValue();
value = evt.newValue;
if (m_Node.GetType() != typeof(SwizzleNode))
{
m_Node.owner.owner.RegisterCompleteObjectUndo("Change" + m_Node.name);
m_PropertyInfo.SetValue(m_Node, value, null);
m_UndoGroup = -1;
}
});
// Pressing escape while we are editing causes it to revert to the original value when we gained focus
field.Q("unity-text-input").RegisterCallback<KeyDownEvent>(evt =>
{
if (evt.keyCode == KeyCode.Escape && m_UndoGroup > -1)
{
Undo.RevertAllDownToGroup(m_UndoGroup);
m_UndoGroup = -1;
evt.StopPropagation();
}
this.MarkDirtyRepaint();
}, TrickleDown.TrickleDown);
field.Q("unity-text-input").RegisterCallback<FocusOutEvent>(evt =>
{
if (m_Node.GetType() == typeof(SwizzleNode))
{
//Only set node value when mouse clicked away
m_Node.owner.owner.RegisterCompleteObjectUndo("Change" + m_Node.name);
m_PropertyInfo.SetValue(m_Node, value, null);
m_UndoGroup = -1;
//Validate graph to update downstream input slot
m_Node.owner.ValidateGraph();
m_Node.Dirty(ModificationScope.Topological);
}
this.MarkDirtyRepaint();
}, TrickleDown.TrickleDown);
container.Add(field);
Add(container);
}
string GetValue()
{
var value = m_PropertyInfo.GetValue(m_Node, null);
Assert.IsNotNull(value);
return (string)value;
}
void Repaint<T>(MouseEventBase<T> evt) where T : MouseEventBase<T>, new()
{
evt.StopPropagation();
this.MarkDirtyRepaint();
}
}
}