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  3. SCurveEditor

SCurveEditor

API > API/Editor > API/Editor/UnrealEd

Inheritance Hierarchy

References

   
Module UnrealEd
Header /Engine/Source/Editor/UnrealEd/Public/SCurveEditor.h
Include #include "SCurveEditor.h"

Syntax

class SCurveEditor :  
    public SCompoundWidget,  
    public FGCObject,  
    public FEditorUndoClient

Variables

  Type Name Description
Protected variable TAttribute< bool > bAreCurvesVisible Whether or not curves are being displayed
Protected variable TAttribute< bool > bInputSnappingEnabled Whether or not input snapping is enabled.
Protected variable bool bIsUsingSlider True if the sliders are being used to adjust point values
Protected variable TAttribute< bool > bOutputSnappingEnabled Whether or not output snapping is enabled.
Protected variable bool bShowCurveSelector Whether or not to show the curve selector widgets.
Protected variable TAttribute< bool > bShowTimeInFrames Show time in frames.
Protected variable bool bShowZoomButtons True if the internal zoom buttons should be visible.
Protected variable bool bZoomToFitHorizontal True if you want the curve editor to fit to zoom
Protected variable bool bZoomToFitVertical True if you want the curve editor to fit to zoom
Protected variable TSharedPtr< SToolTip > CurveToolTip The tooltip control for the curves.
Protected variable FText CurveToolTipInputText The text for the input portion of the tooltip.
Protected variable FText CurveToolTipNameText The text for the name portion of the tooltip.
Protected variable FText CurveToolTipOutputText The text for the output portion of the tooltip.
Protected variable TArray< TSharedPtr< FCurveViewModel > > CurveViewModels The view models for the curves.
Protected variable FKeyHandle DraggedKeyHandle A handle to the key which was clicked to start a key drag operation.
Protected variable EDragState DragState The state of the current drag operation happening with the widget, if any.
Protected variable float DragThreshold The number of pixels which the mouse must move before a drag operation starts.
Protected variable TWeakPtr< IMenu > EntryPopupMenu Generic Popup Entry
Protected variable FLinearColor GridColor The color used to draw the grid lines.
Protected variable FText InputAxisName The text to display for the input axis.
Protected variable FText InputFrameAxisName The text to display for the input (frame) axis.
Protected variable TAttribute< float > InputSnap The snapping value for the input domain.
Protected variable FVector2D MouseDownLocation The location of mouse during the last OnMouseButtonDown callback in widget local coordinates.
Protected variable FVector2D MouseMoveLocation The location of the mouse during the last OnMouseMove callback in widget local coordinates.
Protected variable EMovementAxisLock MovementAxisLock The movement axis lock state
Protected variable FText OutputAxisName The text to display for the output axis.
Protected variable TAttribute< float > OutputSnap The snapping value for the output domain.
Protected variable TMap< FKeyHandle, FVector2D > PreDragKeyLocations A map of selected key handle to their starting locations at the beginning of a drag operation.
Protected variable TMap< FKeyHandle, FVector2D > PreDragTangents A map of selected key handles to their tangent values at the beginning of a drag operation.
Protected variable float ReduceTolerance The tolerance to use when reducing curves
Protected variable TAttribute< float > TimelineLength How long the overall timeline is
Protected variable TAttribute< float > ViewMaxInput Maximum input of view range
Protected variable TAttribute< float > ViewMaxOutput Min output view range
Protected variable TAttribute< float > ViewMinInput Minimum input of view range
Protected variable TAttribute< float > ViewMinOutput Max output view range

Destructors

  Type Name Description
Public function   Destructor

Functions

  Type Name Description
Protected function Const bool Return whether any curve view models are selected
Protected function void Clear the selected curve view models
Protected function void Closes the popup created by GenericTextEntryModeless
Public function void

Construct ( const FArguments& InArgs
)

  
Public function UObject *

CreateCurveObject ( TSubclassOf< UCurveBase > CurveType,
UObject* PackagePtr,
FName& AssetName
)

 Function to create a curve object and return its reference.
Protected function Const float

FrameToTime ( int32 InFrame
)

  
Protected function void

GenericTextEntryModeless ( const FText& DialogText,
const FText& DefaultText,
FOnTextCommitted OnTextComitted
)

 Modeless Version of the String Entry Box
Public function Const bool Gets or sets whether autoframing is allowed
Public function Const bool Gets whether autoframe will be invoked (combination of allow auto frame and curve editor auto frame setting)
Public function TSharedPtr< FUICommandList > Gets a list of the commands handled by this control
Public function UCurveFactory * Construct an object of type UCurveFactory and return it's reference
Public function Const FCurveOwnerInterface * Get the currently edited curve
Public function Const TArray< FRealCurve * > Get the curves to will be used during a fit operation
Protected function Const UCurveEditorSettings * Access the user-supplied settings object
Protected function Virtual Const float

GetTimeStep ( FTrackScaleInfo& ScaleInfo
)

 Get Time Step for vertical line drawing
Public function void

SetAllowAutoFrame ( bool bInAllowAutoFrame
)

  
Public function void

SetCurveOwner ( FCurveOwnerInterface* InCurveOwner,
bool bCanEdit
)

 Set the curve that is being edited by this track widget.
Protected function Virtual void

SetDefaultOutput ( const float MinZoomRange
)

 Set Default output values when range is too small
Protected function void

SetInputMinMax ( float NewMin,
float NewMax
)

 Update view range
Protected function void

SetOutputMinMax ( float NewMin,
float NewMax
)

  
Public function void

SetRequireFocusToZoom ( bool bInRequireFocusToZoom
)

 Set flag that allows scrolling up/down over the widget from the outside without it handling the scroll wheel event
Protected function void Set the selected curve view model that matches the rich curve
Public function void

SetZoomToFit ( bool bNewZoomToFitVertical,
bool bNewZoomToFitHorizontal
)

 Set new zoom to fit
Protected function Const int32

TimeToFrame ( float InTime
)

 Convert time to frames and vice versa
Protected function void Ensure that selected keys and tangents are still valid
Public function void

ZoomToFit ( const bool bZoomToFitAll
)

  
Public function void

ZoomToFitHorizontal ( const bool bZoomToFitAll
)

 Zoom to fit
Public function void

ZoomToFitVertical ( const bool bZoomToFitAll
)

  

Overridden from SWidget

  Type Name Description
Protected function Virtual FReply

OnKeyDown ( const FGeometry& MyGeometry,
const FKeyEvent& InKeyEvent
)

 Called after a key is pressed when this widget has focus (this event bubbles if not handled)
Protected function Virtual FReply

OnMouseButtonDown ( const FGeometry& MyGeometry,
const FPointerEvent& MouseEvent
)

 MOUSE INPUT The system calls this method to notify the widget that a mouse button was pressed within it.
Protected function Virtual FReply

OnMouseButtonUp ( const FGeometry& MyGeometry,
const FPointerEvent& MouseEvent
)

 The system calls this method to notify the widget that a mouse button was release within it.
Protected function Virtual void

OnMouseCaptureLost ( const FCaptureLostEvent& CaptureLostEvent
)

 Called when this widget had captured the mouse, but that capture has been revoked for some reason.
Protected function Virtual FReply

OnMouseMove ( const FGeometry& MyGeometry,
const FPointerEvent& MouseEvent
)

 The system calls this method to notify the widget that a mouse moved within it.
Protected function Virtual FReply

OnMouseWheel ( const FGeometry& MyGeometry,
const FPointerEvent& MouseEvent
)

 Called when the mouse wheel is spun. This event is bubbled.
Protected function Virtual Const int32

OnPaint ( const FPaintArgs& Args,
const FGeometry& AllottedGeometry,
const FSlateRect& MyCullingRect,
FSlateWindowElementList& OutDrawElements,
int32 LayerId,
const FWidgetStyle& InWidgetStyle,
bool bParentEnabled
)

 The widget should respond by populating the OutDrawElements array with FDrawElements that represent it and any of its children.
Public function Virtual Const TOptional< bool >

OnQueryShowFocus ( const EFocusCause InFocusCause
)

 Called to determine if we should render the focus brush.

Overridden from FGCObject

  Type Name Description
Public function Virtual void Since we create a UFactory object, it needs to be serialized
Public function Virtual Const FString Overload this method to report a name for your referencer

Classes

  Type Name Description
Public struct FArguments    

Enums

  Type Name Description
Private enum EDragState Represents the different states of a drag operation  
Private enum EMovementAxisLock    

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