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291e89c4bd
Channels keep track if their owner's(MovieSceneSection) signature change, which we also now invalidate in the FCurveModel::Modify function. InteractiveCurveView on Tick checks and sets a set of values to see if the view or something else has changed and then does a global recreate or checks each curve which then checks that new signature check to see if any individual curve was modified. #jira UE-157989 #preflight 637d3b0c170bc34a93a6e6ab #rb andrew.rodham [CL 23379966 by Mike Zyracki in ue5-main branch]
127 lines
3.0 KiB
C++
127 lines
3.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreTypes.h"
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#include "Containers/Array.h"
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#include "Curves/KeyHandle.h"
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#include "Math/Color.h"
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#include "Math/Vector2D.h"
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#include "CurveEditorTypes.h"
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struct FSlateBrush;
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/**
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* Structure that defines how to draw a particular key
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*/
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struct FKeyDrawInfo
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{
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FKeyDrawInfo()
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: ScreenSize(0.f, 0.f)
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, Brush(nullptr)
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{}
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/** The size of the key on screen in slate units */
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FVector2D ScreenSize;
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/** The brush to use to draw the key */
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const FSlateBrush* Brush;
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/** A tint to apply to the brush */
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TOptional<FLinearColor> Tint;
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};
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/**
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* Structure that defines the necessary data for painting a given curve point
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*/
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struct FCurvePointInfo
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{
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FCurvePointInfo(FKeyHandle InHandle)
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: KeyHandle(InHandle)
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, ScreenPosition(0.f, 0.f)
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, LineDelta(0.f, 0.f)
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, Type(ECurvePointType::Key)
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, LayerBias(0)
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{}
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/** This point's key handle */
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FKeyHandle KeyHandle;
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/** The position of the point on screen */
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FVector2D ScreenPosition;
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/** A screen space delta position that defines where to draw a line connected to this point. No line is drawn if zero. */
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FVector2D LineDelta;
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/** The type of the point */
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ECurvePointType Type;
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/** A layer bias to draw the point with (higher integers draw on top) */
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int32 LayerBias;
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/** DrawInfo to use when rendering this point. Allows customization of points on a per-point basis instead of per-curve. */
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FKeyDrawInfo DrawInfo;
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};
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/**
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* Structure that defines the necessary data for painting a whole curve
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*/
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struct FCurveDrawParams
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{
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/** The color to draw this curve */
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FLinearColor Color;
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/** An array of screen-space points that define this curve's shape. Rendered as a continuous line. */
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TArray<FVector2D> InterpolatingPoints;
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/** An array of distinct curve points for the visible range. */
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TArray<FCurvePointInfo> Points;
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/** Value defining how to draw keys of type ECurvePointType::ArriveTangent. */
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FKeyDrawInfo ArriveTangentDrawInfo;
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/** Value defining how to draw keys of type ECurvePointType::LeaveTangent. */
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FKeyDrawInfo LeaveTangentDrawInfo;
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/** Whether or not to draw keys on the curve. */
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uint8 bKeyDrawEnabled : 1;
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/**
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* Construct new draw parameters for the specified curve ID
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*/
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FCurveDrawParams(FCurveModelID InID)
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: Color(0.2f, 0.2f, 0.2f)
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, bKeyDrawEnabled(1)
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, ID(InID)
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{}
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/**
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* Get the curve ID that these draw parameters relate to
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*/
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FCurveModelID GetID() const
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{
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return ID;
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}
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/**
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* Retrieve the draw information for drawing the specified type of curve point
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*/
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const FKeyDrawInfo& GetKeyDrawInfo(ECurvePointType Type, const int32 InPointIndex) const
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{
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switch (Type)
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{
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case ECurvePointType::ArriveTangent: return ArriveTangentDrawInfo;
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case ECurvePointType::LeaveTangent: return LeaveTangentDrawInfo;
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case ECurvePointType::Key: return Points[InPointIndex].DrawInfo;
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}
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return InvalidDrawInfo;
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}
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private:
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/** Immutable curve ID */
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FCurveModelID ID;
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/** Immutable dummy key draw info to return */
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FKeyDrawInfo InvalidDrawInfo;
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};
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