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92 lines
3.2 KiB
92 lines
3.2 KiB
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 UnityEditor.ShaderGraph; |
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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 GradientControlAttribute : Attribute, IControlAttribute |
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{ |
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string m_Label; |
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public GradientControlAttribute(string label = null) |
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{ |
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m_Label = label; |
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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 GradientControlView(m_Label, node, propertyInfo); |
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} |
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} |
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[Serializable] |
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class GradientObject : ScriptableObject |
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{ |
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public Gradient gradient = new Gradient(); |
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} |
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class GradientControlView : VisualElement |
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{ |
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GUIContent m_Label; |
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AbstractMaterialNode m_Node; |
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PropertyInfo m_PropertyInfo; |
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[SerializeField] |
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GradientObject m_GradientObject; |
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[SerializeField] |
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SerializedObject m_SerializedObject; |
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public GradientControlView(string label, AbstractMaterialNode node, PropertyInfo propertyInfo) |
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{ |
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m_Node = node; |
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m_PropertyInfo = propertyInfo; |
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styleSheets.Add(Resources.Load<StyleSheet>("Styles/Controls/GradientControlView")); |
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if (propertyInfo.PropertyType != typeof(Gradient)) |
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throw new ArgumentException("Property must be of type Gradient.", "propertyInfo"); |
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new GUIContent(label ?? ObjectNames.NicifyVariableName(propertyInfo.Name)); |
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m_GradientObject = ScriptableObject.CreateInstance<GradientObject>(); |
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m_GradientObject.gradient = new Gradient(); |
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m_SerializedObject = new SerializedObject(m_GradientObject); |
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var gradient = (Gradient)m_PropertyInfo.GetValue(m_Node, null); |
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m_GradientObject.gradient.SetKeys(gradient.colorKeys, gradient.alphaKeys); |
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m_GradientObject.gradient.mode = gradient.mode; |
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var gradientPanel = new VisualElement { name = "gradientPanel" }; |
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if (!string.IsNullOrEmpty(label)) |
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gradientPanel.Add(new Label(label)); |
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var gradientField = new GradientField() { value = m_GradientObject.gradient, colorSpace = ColorSpace.Linear }; |
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gradientField.RegisterValueChangedCallback(OnValueChanged); |
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gradientPanel.Add(gradientField); |
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Add(gradientPanel); |
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} |
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void OnValueChanged(ChangeEvent<Gradient> evt) |
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{ |
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m_SerializedObject.Update(); |
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var value = (Gradient)m_PropertyInfo.GetValue(m_Node, null); |
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if (!evt.newValue.Equals(value)) |
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{ |
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m_GradientObject.gradient.SetKeys(evt.newValue.colorKeys, evt.newValue.alphaKeys); |
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m_GradientObject.gradient.mode = evt.newValue.mode; |
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m_SerializedObject.ApplyModifiedProperties(); |
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m_Node.owner.owner.RegisterCompleteObjectUndo("Change " + m_Node.name); |
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m_PropertyInfo.SetValue(m_Node, m_GradientObject.gradient, null); |
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this.MarkDirtyRepaint(); |
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} |
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} |
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} |
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}
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