252 lines
9.2 KiB
C++
252 lines
9.2 KiB
C++
// Copyright 2019-Present LexLiu. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "CoreMinimal.h"
|
|
#include "Input/Reply.h"
|
|
#include "Layout/Visibility.h"
|
|
#include "Widgets/SWidget.h"
|
|
#include "Framework/Commands/UIAction.h"
|
|
#include "IDetailCustomNodeBuilder.h"
|
|
#include "Widgets/Input/NumericTypeInterface.h"
|
|
#include "AssetSelection.h"
|
|
|
|
class FDetailWidgetRow;
|
|
class FMenuBuilder;
|
|
class FNotifyHook;
|
|
class IDetailChildrenBuilder;
|
|
class IDetailLayoutBuilder;
|
|
class UUIItem;
|
|
|
|
namespace ETransformField
|
|
{
|
|
enum Type
|
|
{
|
|
Location,
|
|
Rotation,
|
|
Scale
|
|
};
|
|
}
|
|
/**
|
|
* Manages the Transform section of a details view
|
|
*/
|
|
class FComponentTransformDetails : public TSharedFromThis<FComponentTransformDetails>, public IDetailCustomNodeBuilder, public TNumericUnitTypeInterface<FVector::FReal>
|
|
{
|
|
public:
|
|
FComponentTransformDetails( const TArray< TWeakObjectPtr<UUIItem> >& InSelectedObjects, const FSelectedActorInfo& InSelectedActorInfo, IDetailLayoutBuilder& DetailBuilder );
|
|
|
|
/**
|
|
* Caches the representation of the actor transform for the user input boxes
|
|
*/
|
|
void CacheTransform();
|
|
|
|
virtual void GenerateHeaderRowContent( FDetailWidgetRow& NodeRow ) override {}
|
|
virtual void GenerateChildContent( IDetailChildrenBuilder& ChildrenBuilder ) override;
|
|
virtual bool RequiresTick() const override { return true; }
|
|
virtual FName GetName() const override { return NAME_None; }
|
|
virtual bool InitiallyCollapsed() const override { return false; }
|
|
virtual void Tick( float DeltaTime ) override;
|
|
virtual void SetOnRebuildChildren( FSimpleDelegate OnRebuildChildren ) override{}
|
|
|
|
private:
|
|
/** @return Whether the transform details panel should be enabled (editable) or not (read-only / greyed out) */
|
|
bool GetIsEnabled() const;
|
|
|
|
/** Sets a vector based on two source vectors and an axis list */
|
|
FVector GetAxisFilteredVector(EAxisList::Type Axis, const FVector& NewValue, const FVector& OldValue);
|
|
|
|
/**
|
|
* Sets the selected object(s) axis to passed in value
|
|
*
|
|
* @param TransformField The field (location/rotation/scale) to modify
|
|
* @param Axis Bitfield of which axis to set, can be multiple
|
|
* @param NewValue The new vector values, it only uses the ones with specified axis
|
|
* @param bCommittted True if the value was committed, false is the value comes from the slider
|
|
*/
|
|
void OnSetTransform(ETransformField::Type TransformField, EAxisList::Type Axis, FVector NewValue, bool bCommitted);
|
|
|
|
/**
|
|
* Sets a single axis value, called from UI
|
|
*
|
|
* @param TransformField The field (location/rotation/scale) to modify
|
|
* @param NewValue The new translation value
|
|
* @param CommitInfo Whether or not this was committed from pressing enter or losing focus
|
|
* @param Axis Bitfield of which axis to set, can be multiple
|
|
* @param bCommittted true if the value was committed, false is the value comes from the slider
|
|
*/
|
|
void OnSetTransformAxis(FVector::FReal NewValue, ETextCommit::Type CommitInfo, ETransformField::Type TransformField, EAxisList::Type Axis, bool bCommitted);
|
|
|
|
/**
|
|
* Helper to begin a new transaction for a slider interaction.
|
|
* @param ActorTransaction The name to give the transaction when changing an actor transform.
|
|
* @param ComponentTransaction The name to give the transaction when directly editing a component transform.
|
|
*/
|
|
void BeginSliderTransaction(FText ActorTransaction, FText ComponentTransaction) const;
|
|
|
|
/**
|
|
* Called when the one of the axis sliders for object rotation begins to change for the first time
|
|
*/
|
|
void OnBeginRotationSlider();
|
|
|
|
/**
|
|
* Called when the one of the axis sliders for object rotation is released
|
|
*/
|
|
void OnEndRotationSlider(FVector::FReal NewValue);
|
|
|
|
/** Called when one of the axis sliders for object location begins to change */
|
|
void OnBeginLocationSlider();
|
|
|
|
/** Called when one of the axis sliders for object location is released */
|
|
void OnEndLocationSlider(FVector::FReal NewValue);
|
|
|
|
/** Called when one of the axis sliders for object scale begins to change */
|
|
void OnBeginScaleSlider();
|
|
|
|
/** Called when one of the axis sliders for object scale is released */
|
|
void OnEndScaleSlider(FVector::FReal NewValue);
|
|
|
|
/** @return Icon to use in the preserve scale ratio check box */
|
|
const FSlateBrush* GetPreserveScaleRatioImage() const;
|
|
|
|
/** @return The state of the preserve scale ratio checkbox */
|
|
ECheckBoxState IsPreserveScaleRatioChecked() const;
|
|
|
|
/**
|
|
* Called when the preserve scale ratio checkbox is toggled
|
|
*/
|
|
void OnPreserveScaleRatioToggled( ECheckBoxState NewState );
|
|
|
|
/**
|
|
* Builds a transform field label
|
|
*
|
|
* @param TransformField The field to build the label for
|
|
* @return The label AnchorData
|
|
*/
|
|
TSharedRef<SWidget> BuildTransformFieldLabel( ETransformField::Type TransformField );
|
|
|
|
/** @return true of copy is enabled for the specified field */
|
|
bool OnCanCopy( ETransformField::Type TransformField ) const;
|
|
|
|
bool IsLocationXEnable()const { return true; };
|
|
bool IsLocationYEnable()const;
|
|
bool IsLocationZEnable()const;
|
|
|
|
/**
|
|
* Copies the specified transform field to the clipboard
|
|
*/
|
|
void OnCopy( ETransformField::Type TransformField );
|
|
|
|
/**
|
|
* Pastes the specified transform field from the clipboard
|
|
*/
|
|
void OnPaste( ETransformField::Type TransformField );
|
|
|
|
/**
|
|
* Creates a UI action for copying a specified transform field
|
|
*/
|
|
FUIAction CreateCopyAction( ETransformField::Type TransformField );
|
|
|
|
/**
|
|
* Creates a UI action for pasting a specified transform field
|
|
*/
|
|
FUIAction CreatePasteAction( ETransformField::Type TransformField );
|
|
|
|
/** Called when the "Reset to Default" button for the location has been clicked */
|
|
void OnLocationResetClicked();
|
|
|
|
/** Called when the "Reset to Default" button for the rotation has been clicked */
|
|
void OnRotationResetClicked();
|
|
|
|
/** Called when the "Reset to Default" button for the scale has been clicked */
|
|
void OnScaleResetClicked();
|
|
|
|
/** @return The X component of location */
|
|
TOptional<FVector::FReal> GetLocationX() const { return CachedLocation.X; }
|
|
/** @return The Y component of location */
|
|
TOptional<FVector::FReal> GetLocationY() const { return CachedLocation.Y; }
|
|
/** @return The Z component of location */
|
|
TOptional<FVector::FReal> GetLocationZ() const { return CachedLocation.Z; }
|
|
/** @return The visibility of the "Reset to Default" button for the location component */
|
|
bool GetLocationResetVisibility() const;
|
|
|
|
/** @return The X component of rotation */
|
|
TOptional<FVector::FReal> GetRotationX() const { return CachedRotation.X; }
|
|
/** @return The Y component of rotation */
|
|
TOptional<FVector::FReal> GetRotationY() const { return CachedRotation.Y; }
|
|
/** @return The Z component of rotation */
|
|
TOptional<FVector::FReal> GetRotationZ() const { return CachedRotation.Z; }
|
|
/** @return The visibility of the "Reset to Default" button for the rotation component */
|
|
bool GetRotationResetVisibility() const;
|
|
|
|
/** @return The X component of scale */
|
|
TOptional<FVector::FReal> GetScaleX() const { return CachedScale.X; }
|
|
/** @return The Y component of scale */
|
|
TOptional<FVector::FReal> GetScaleY() const { return CachedScale.Y; }
|
|
/** @return The Z component of scale */
|
|
TOptional<FVector::FReal> GetScaleZ() const { return CachedScale.Z; }
|
|
/** @return The visibility of the "Reset to Default" button for the scale component */
|
|
bool GetScaleResetVisibility() const;
|
|
|
|
/** Cache a single unit to display all location comonents in */
|
|
void CacheCommonLocationUnits();
|
|
|
|
/** Generate a property handle from a property name. */
|
|
TSharedPtr<IPropertyHandle> GeneratePropertyHandle(FName PropertyName, IDetailChildrenBuilder& ChildrenBuilder);
|
|
private:
|
|
/** A vector where it may optionally be unset */
|
|
template <typename NumericType>
|
|
struct FOptionalVector
|
|
{
|
|
/**
|
|
* Sets the value from an FVector
|
|
*/
|
|
void Set( const FVector& InVec )
|
|
{
|
|
X = InVec.X;
|
|
Y = InVec.Y;
|
|
Z = InVec.Z;
|
|
}
|
|
|
|
/**
|
|
* Sets the value from an FRotator
|
|
*/
|
|
void Set( const FRotator& InRot )
|
|
{
|
|
X = InRot.Roll;
|
|
Y = InRot.Pitch;
|
|
Z = InRot.Yaw;
|
|
}
|
|
|
|
/** @return Whether or not the value is set */
|
|
bool IsSet() const
|
|
{
|
|
// The vector is set if all values are set
|
|
return X.IsSet() && Y.IsSet() && Z.IsSet();
|
|
}
|
|
|
|
TOptional<NumericType> X;
|
|
TOptional<NumericType> Y;
|
|
TOptional<NumericType> Z;
|
|
};
|
|
|
|
FSelectedActorInfo SelectedActorInfo;
|
|
/** Copy of selected actor references in the details view */
|
|
TArray< TWeakObjectPtr<UUIItem> > SelectedObjects;
|
|
/** Cache translation value of the selected set */
|
|
FOptionalVector<FVector::FReal> CachedLocation;
|
|
/** Cache rotation value of the selected set */
|
|
FOptionalVector<FVector::FReal> CachedRotation;
|
|
/** Cache scale value of the selected set */
|
|
FOptionalVector<FVector::FReal> CachedScale;
|
|
/** Notify hook to use */
|
|
FNotifyHook* NotifyHook;
|
|
/** Whether or not to preserve scale ratios */
|
|
bool bPreserveScaleRatio;
|
|
/** Mapping from object to relative rotation values which are not affected by Quat->Rotator conversions during transform calculations */
|
|
TMap< UObject*, FRotator > ObjectToRelativeRotationMap;
|
|
/** Flag to indicate we are currently editing the rotation in the UI, so we should rely on the cached value in objectToRelativeRotationMap, not the value from the object */
|
|
bool bEditingRotationInUI;
|
|
/** Flag to indicate we are currently performing a slider transaction */
|
|
bool bIsSliderTransaction;
|
|
};
|