58 lines
1.8 KiB
C#
58 lines
1.8 KiB
C#
using System;
|
|
using System.Linq;
|
|
using UnityEditor.Experimental.GraphView;
|
|
using UnityEditor.Graphing;
|
|
using UnityEngine;
|
|
using UnityEngine.UIElements;
|
|
using ContextualMenuManipulator = UnityEngine.UIElements.ContextualMenuManipulator;
|
|
using ContextualMenuPopulateEvent = UnityEngine.UIElements.ContextualMenuPopulateEvent;
|
|
using VisualElementExtensions = UnityEngine.UIElements.VisualElementExtensions;
|
|
|
|
namespace UnityEditor.ShaderGraph
|
|
{
|
|
sealed class ShaderGroup : Group
|
|
{
|
|
GraphData m_Graph;
|
|
public new GroupData userData
|
|
{
|
|
get => (GroupData)base.userData;
|
|
set => base.userData = value;
|
|
}
|
|
|
|
public ShaderGroup()
|
|
{
|
|
VisualElementExtensions.AddManipulator(this, new ContextualMenuManipulator(BuildContextualMenu));
|
|
style.backgroundColor = new StyleColor(new Color(25 / 255f, 25 / 255f, 25 / 255f, 25 / 255f));
|
|
capabilities |= Capabilities.Ascendable;
|
|
}
|
|
|
|
public void BuildContextualMenu(ContextualMenuPopulateEvent evt)
|
|
{
|
|
}
|
|
|
|
public override bool AcceptsElement(GraphElement element, ref string reasonWhyNotAccepted)
|
|
{
|
|
if (element is StackNode stackNode)
|
|
{
|
|
reasonWhyNotAccepted = "Vertex and Pixel Stacks cannot be grouped";
|
|
return false;
|
|
}
|
|
|
|
var nodeView = element as IShaderNodeView;
|
|
if (nodeView == null)
|
|
{
|
|
// sticky notes are not nodes, but still groupable
|
|
return true;
|
|
}
|
|
|
|
if (nodeView.node is BlockNode)
|
|
{
|
|
reasonWhyNotAccepted = "Block Nodes cannot be grouped";
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|