84 lines
2.9 KiB
C#
84 lines
2.9 KiB
C#
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using System;
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using System.Reflection;
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using UnityEngine;
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using UnityEditor.Graphing;
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using UnityEngine.UIElements;
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namespace UnityEditor.ShaderGraph.Drawing.Controls
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{
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[AttributeUsage(AttributeTargets.Property)]
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class ChannelEnumMaskControlAttribute : Attribute, IControlAttribute
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{
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string m_Label;
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int m_SlotId;
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public ChannelEnumMaskControlAttribute(string label = null, int slotId = 0)
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{
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m_Label = label;
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m_SlotId = slotId;
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}
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public VisualElement InstantiateControl(AbstractMaterialNode node, PropertyInfo propertyInfo)
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{
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return new ChannelEnumMaskControlView(m_Label, m_SlotId, node, propertyInfo);
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}
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}
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class ChannelEnumMaskControlView : VisualElement, AbstractMaterialNodeModificationListener
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{
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string m_Label;
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AbstractMaterialNode m_Node;
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PropertyInfo m_PropertyInfo;
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IMGUIContainer m_Container;
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int m_SlotId;
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public ChannelEnumMaskControlView(string label, int slotId, AbstractMaterialNode node, PropertyInfo propertyInfo)
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{
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styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/ChannelEnumMaskControlView"));
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m_Node = node;
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m_PropertyInfo = propertyInfo;
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m_SlotId = slotId;
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//if (!propertyInfo.PropertyType.IsEnum)
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//throw new ArgumentException("Property must be an enum.", "propertyInfo");
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m_Label = label;
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m_Container = new IMGUIContainer(OnGUIHandler);
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Add(m_Container);
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}
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void OnGUIHandler()
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{
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GUILayout.BeginHorizontal();
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GUILayout.Label(m_Label);
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UpdatePopup();
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GUILayout.EndHorizontal();
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}
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public void OnNodeModified(ModificationScope scope)
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{
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if (scope == ModificationScope.Graph)
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m_Container.MarkDirtyRepaint();
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}
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private void UpdatePopup()
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{
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var value = (int)m_PropertyInfo.GetValue(m_Node, null);
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using (var changeCheckScope = new EditorGUI.ChangeCheckScope())
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{
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int channelCount = SlotValueHelper.GetChannelCount(m_Node.FindSlot<MaterialSlot>(m_SlotId).concreteValueType);
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string[] enumEntryNames = Enum.GetNames(typeof(TextureChannel));
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string[] popupEntries = new string[channelCount];
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for (int i = 0; i < popupEntries.Length; i++)
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popupEntries[i] = enumEntryNames[i];
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value = EditorGUILayout.MaskField("", value, popupEntries, GUILayout.Width(80f));
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if (changeCheckScope.changed)
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{
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m_Node.owner.owner.RegisterCompleteObjectUndo("Change " + m_Node.name);
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m_PropertyInfo.SetValue(m_Node, value, null);
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}
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}
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}
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}
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}
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