89 lines
3.7 KiB
C#
89 lines
3.7 KiB
C#
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Internal;
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using UnityEngine.Splines;
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namespace UnityEditor.Splines
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{
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[ExcludeFromDocs]
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[AttributeUsage(AttributeTargets.Class, Inherited = false)]
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public class CustomSplineDataHandle : Attribute
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{
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internal Type m_Type;
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// Tells a PropertyDrawer class which run-time class or attribute it's a drawer for.
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public CustomSplineDataHandle(Type type)
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{
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m_Type = type;
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}
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}
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interface ISplineDataHandle
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{
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public SplineDataHandleAttribute attribute
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{ get; }
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void SetAttribute(SplineDataHandleAttribute attribute);
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}
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/// <summary>
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/// SplineDataHandle is a base class to override in order to enable custom handles for spline data.
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/// The Drawer needs to inherit from this class and override the method corresponding to the correct splineData type.
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/// Either one of the method or both can be overriden regarding the user needs.
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/// </summary>
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/// <typeparam name="T">
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/// The type parameter of the <see cref="SplineData{T}"/> that this drawer targets.
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/// </typeparam>
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public abstract class SplineDataHandle<T> : ISplineDataHandle
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{
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internal int[] m_ControlIDs;
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SplineDataHandleAttribute m_Attribute;
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[ExcludeFromDocs]
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public SplineDataHandleAttribute attribute => m_Attribute;
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/// <summary>
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/// Array of reserved control IDs used for <see cref="SplineData{T}"/> handles.
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/// </summary>
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public int[] controlIDs => m_ControlIDs;
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void ISplineDataHandle.SetAttribute(SplineDataHandleAttribute attribute)
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{
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m_Attribute = attribute;
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}
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/// <summary>
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/// Override this method to create custom handles for <see cref="SplineData{T}"/>,
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/// this method is called before DrawKeyframe in the render loop.
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/// </summary>
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/// <param name="splineData">The <see cref="SplineData{T}"/> for which the method is drawing handles.</param>
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/// <param name="spline">The target Spline associated to the SplineData for the drawing.</param>
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/// <param name="localToWorld">The spline localToWorld Matrix.</param>
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/// <param name="color">The color defined in the SplineData scene interface.</param>
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public virtual void DrawSplineData(SplineData<T> splineData, Spline spline, Matrix4x4 localToWorld, Color color)
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{}
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/// <summary>
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/// Override this method to create custom handles for a <see cref="DataPoint{T}"/>in <see cref="SplineData{T}"/>,
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/// 'position' and 'direction' are given in the Spline-space basis.
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/// This method is called after DrawSplineData in the render loop.
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/// </summary>
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/// <param name="controlID">A control ID from <see cref="controlIDs"/> that represents this handle.</param>
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/// <param name="position">The position of the keyframe data in spline space.</param>
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/// <param name="direction">The direction of the spline at the current keyframe.</param>
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/// <param name="upDirection">The up vector orthogonal to the spline direction at the current keyframe regarding knot rotation.</param>
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/// <param name="splineData">The <see cref="SplineData{T}"/> for which the method is drawing handles.</param>
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/// <param name="dataPointIndex">The index of the current keyframe to handle.</param>
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public virtual void DrawDataPoint(
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int controlID,
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Vector3 position,
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Vector3 direction,
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Vector3 upDirection,
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SplineData<T> splineData,
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int dataPointIndex)
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{}
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}
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}
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