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105 lines
3.3 KiB
105 lines
3.3 KiB
using System; |
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using System.Collections.Generic; |
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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 UnityEditor.UIElements; |
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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 ChannelEnumControlAttribute : 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 ChannelEnumControlAttribute(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 ChannelEnumControlView(m_Label, m_SlotId, node, propertyInfo); |
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} |
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} |
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class ChannelEnumControlView : VisualElement, AbstractMaterialNodeModificationListener |
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{ |
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AbstractMaterialNode m_Node; |
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PropertyInfo m_PropertyInfo; |
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int m_SlotId; |
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PopupField<string> m_PopupField; |
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string[] m_ValueNames; |
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int m_PreviousChannelCount = -1; |
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public ChannelEnumControlView(string label, int slotId, AbstractMaterialNode node, PropertyInfo propertyInfo) |
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{ |
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styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/ChannelEnumControlView")); |
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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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Add(new Label(label ?? ObjectNames.NicifyVariableName(propertyInfo.Name))); |
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var value = (Enum)m_PropertyInfo.GetValue(m_Node, null); |
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m_ValueNames = Enum.GetNames(value.GetType()); |
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CreatePopup(); |
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} |
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void OnValueChanged(ChangeEvent<string> evt) |
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{ |
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var index = m_PopupField.index; |
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var value = (int)m_PropertyInfo.GetValue(m_Node, null); |
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if (!index.Equals(value)) |
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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, index, null); |
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} |
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CreatePopup(); |
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} |
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public void OnNodeModified(ModificationScope scope) |
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{ |
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if (scope == ModificationScope.Node) |
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{ |
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CreatePopup(); |
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m_PopupField.MarkDirtyRepaint(); |
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} |
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} |
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void CreatePopup() |
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{ |
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int channelCount = SlotValueHelper.GetChannelCount(m_Node.FindSlot<MaterialSlot>(m_SlotId).concreteValueType); |
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if (m_PopupField != null) |
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{ |
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if (channelCount == m_PreviousChannelCount) |
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return; |
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Remove(m_PopupField); |
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} |
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m_PreviousChannelCount = channelCount; |
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List<string> popupEntries = new List<string>(); |
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for (int i = 0; i < channelCount; i++) |
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popupEntries.Add(m_ValueNames[i]); |
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var value = (int)m_PropertyInfo.GetValue(m_Node, null); |
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if (value >= channelCount) |
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value = 0; |
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m_PopupField = new PopupField<string>(popupEntries, value); |
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m_PopupField.RegisterValueChangedCallback(OnValueChanged); |
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Add(m_PopupField); |
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} |
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} |
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}
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