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570 lines
18 KiB
C++
570 lines
18 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "DetailCustomizationsPrivatePCH.h"
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#include "MathStructCustomizations.h"
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TSharedRef<IStructCustomization> FMathStructCustomization::MakeInstance()
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{
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return MakeShareable( new FMathStructCustomization );
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}
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void FMathStructCustomization::CustomizeStructHeader( TSharedRef<class IPropertyHandle> StructPropertyHandle, class FDetailWidgetRow& HeaderRow, IStructCustomizationUtils& StructCustomizationUtils )
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{
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GetSortedChildren( StructPropertyHandle, SortedChildHandles );
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MakeHeaderRow( StructPropertyHandle, HeaderRow );
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}
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void FMathStructCustomization::CustomizeStructChildren( TSharedRef<class IPropertyHandle> StructPropertyHandle, class IDetailChildrenBuilder& StructBuilder, IStructCustomizationUtils& StructCustomizationUtils )
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{
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for( int32 ChildIndex = 0; ChildIndex < SortedChildHandles.Num(); ++ChildIndex )
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{
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TSharedRef<IPropertyHandle> ChildHandle = SortedChildHandles[ChildIndex];
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// Add the individual properties as children as well so the vector can be expanded for more room
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StructBuilder.AddChildProperty( ChildHandle );
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}
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}
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void FMathStructCustomization::MakeHeaderRow( TSharedRef<class IPropertyHandle>& StructPropertyHandle, FDetailWidgetRow& Row )
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{
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// We'll set up reset to default ourselves
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const bool bDisplayResetToDefault = false;
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const FString DisplayNameOverride = TEXT("");
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TSharedPtr<SHorizontalBox> HorizontalBox;
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Row.NameContent()
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[
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StructPropertyHandle->CreatePropertyNameWidget( DisplayNameOverride, bDisplayResetToDefault )
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]
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.ValueContent()
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// Make enough space for each child handle
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.MinDesiredWidth(125.0f * SortedChildHandles.Num() )
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.MaxDesiredWidth(125.0f * SortedChildHandles.Num() )
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[
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SAssignNew( HorizontalBox, SHorizontalBox )
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];
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for( int32 ChildIndex = 0; ChildIndex < SortedChildHandles.Num(); ++ChildIndex )
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{
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TSharedRef<IPropertyHandle> ChildHandle = SortedChildHandles[ChildIndex];
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const bool bLastChild = SortedChildHandles.Num()-1 == ChildIndex;
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// Make a widget for each property. The vector component properties will be displayed in the header
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HorizontalBox->AddSlot()
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.Padding( FMargin(0.0f, 2.0f, bLastChild ? 0.0f : 3.0f, 2.0f ) )
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[
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MakeChildWidget( ChildHandle )
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];
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}
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}
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void FMathStructCustomization::GetSortedChildren( TSharedRef<IPropertyHandle> StructPropertyHandle, TArray< TSharedRef<IPropertyHandle> >& OutChildren )
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{
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OutChildren.Empty();
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uint32 NumChildren;
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StructPropertyHandle->GetNumChildren( NumChildren );
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for( uint32 ChildIndex = 0; ChildIndex < NumChildren; ++ChildIndex )
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{
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OutChildren.Add( StructPropertyHandle->GetChildHandle( ChildIndex ).ToSharedRef() );
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}
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}
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template<typename NumericType>
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TSharedRef<SWidget> FMathStructCustomization::MakeNumericWidget(TSharedRef<IPropertyHandle>& PropertyHandle)
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{
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TWeakPtr<IPropertyHandle> WeakHandlePtr = PropertyHandle;
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return
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SNew( SNumericEntryBox<NumericType> )
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.Value( this, &FMathStructCustomization::OnGetValue, WeakHandlePtr )
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.Font( IDetailLayoutBuilder::GetDetailFont() )
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.UndeterminedString( NSLOCTEXT("PropertyEditor", "MultipleValues", "Multiple Values").ToString() )
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.OnValueCommitted( this, &FMathStructCustomization::OnValueCommitted<NumericType>, WeakHandlePtr )
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.OnValueChanged( this, &FMathStructCustomization::OnValueChanged<NumericType>, WeakHandlePtr )
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.OnBeginSliderMovement( this, &FMathStructCustomization::OnBeginSliderMovement )
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.OnEndSliderMovement( this, &FMathStructCustomization::OnEndSliderMovement<NumericType> )
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.LabelVAlign(VAlign_Center)
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// Only allow spin on handles with one object. Otherwise it is not clear what value to spin
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.AllowSpin( PropertyHandle->GetNumOuterObjects() == 1 )
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.MinValue(TOptional<NumericType>())
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.MaxValue(TOptional<NumericType>())
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.MaxSliderValue(TOptional<NumericType>())
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.MinSliderValue(TOptional<NumericType>())
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.Label()
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[
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SNew( STextBlock )
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.Font( IDetailLayoutBuilder::GetDetailFont() )
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.Text( PropertyHandle->GetPropertyDisplayName() )
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];
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}
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TSharedRef<SWidget> FMathStructCustomization::MakeChildWidget( TSharedRef<IPropertyHandle>& PropertyHandle )
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{
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const UClass* PropertyClass = PropertyHandle->GetPropertyClass();
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if (PropertyClass == UFloatProperty::StaticClass())
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{
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return MakeNumericWidget<float>(PropertyHandle);
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}
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if (PropertyClass == UIntProperty::StaticClass())
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{
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return MakeNumericWidget<int32>(PropertyHandle);
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}
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if (PropertyClass == UByteProperty::StaticClass())
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{
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return MakeNumericWidget<uint8>(PropertyHandle);
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}
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check(0); // Unsupported class
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return SNullWidget::NullWidget;
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}
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template<typename NumericType>
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TOptional<NumericType> FMathStructCustomization::OnGetValue( TWeakPtr<IPropertyHandle> WeakHandlePtr ) const
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{
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NumericType NumericVal = 0;
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if( WeakHandlePtr.Pin()->GetValue( NumericVal ) == FPropertyAccess::Success )
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{
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return TOptional<NumericType>( NumericVal );
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}
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// Value couldn't be accessed. Return an unset value
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return TOptional<NumericType>();
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}
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template<typename NumericType>
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void FMathStructCustomization::OnValueCommitted( NumericType NewValue, ETextCommit::Type CommitType, TWeakPtr<IPropertyHandle> WeakHandlePtr )
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{
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WeakHandlePtr.Pin()->SetValue( NewValue );
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}
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template<typename NumericType>
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void FMathStructCustomization::OnValueChanged( NumericType NewValue, TWeakPtr<IPropertyHandle> WeakHandlePtr )
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{
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if( bIsUsingSlider )
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{
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EPropertyValueSetFlags::Type Flags = EPropertyValueSetFlags::InteractiveChange;
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WeakHandlePtr.Pin()->SetValue( NewValue, Flags );
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}
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}
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void FMathStructCustomization::OnBeginSliderMovement()
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{
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bIsUsingSlider = true;
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GEditor->BeginTransaction( NSLOCTEXT("FMathStructCustomization", "SetVectorProperty", "Set Vector Property") );
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}
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template<typename NumericType>
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void FMathStructCustomization::OnEndSliderMovement( NumericType NewValue )
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{
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bIsUsingSlider = false;
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GEditor->EndTransaction();
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}
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TSharedRef<IStructCustomization> FRotatorStructCustomization::MakeInstance()
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{
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return MakeShareable( new FRotatorStructCustomization );
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}
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void FRotatorStructCustomization::GetSortedChildren( TSharedRef<IPropertyHandle> StructPropertyHandle, TArray< TSharedRef<IPropertyHandle> >& OutChildren )
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{
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static const FName Roll("Roll");
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static const FName Pitch("Pitch");
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static const FName Yaw("Yaw");
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TSharedPtr< IPropertyHandle > RotatorChildren[3];
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uint32 NumChildren;
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StructPropertyHandle->GetNumChildren( NumChildren );
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for( uint32 ChildIndex = 0; ChildIndex < NumChildren; ++ChildIndex )
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{
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TSharedRef<IPropertyHandle> ChildHandle = StructPropertyHandle->GetChildHandle( ChildIndex ).ToSharedRef();
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const FName PropertyName = ChildHandle->GetProperty()->GetFName();
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if( PropertyName == Roll )
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{
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RotatorChildren[0] = ChildHandle;
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}
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else if( PropertyName == Pitch )
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{
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RotatorChildren[1] = ChildHandle;
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}
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else
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{
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check( PropertyName == Yaw );
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RotatorChildren[2] = ChildHandle;
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}
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}
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OutChildren.Add( RotatorChildren[0].ToSharedRef() );
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OutChildren.Add( RotatorChildren[1].ToSharedRef() );
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OutChildren.Add( RotatorChildren[2].ToSharedRef() );
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}
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TSharedRef<IStructCustomization> FColorStructCustomization::MakeInstance()
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{
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return MakeShareable( new FColorStructCustomization );
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}
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void FColorStructCustomization::CustomizeStructHeader( TSharedRef<class IPropertyHandle> InStructPropertyHandle, class FDetailWidgetRow& InHeaderRow, IStructCustomizationUtils& StructCustomizationUtils )
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{
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TSharedPtr<FAssetThumbnailPool> Pool = StructCustomizationUtils.GetThumbnailPool();
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StructPropertyHandle = InStructPropertyHandle;
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bIsLinearColor = CastChecked<UStructProperty>( StructPropertyHandle->GetProperty() )->Struct->GetFName() == NAME_LinearColor;
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bIgnoreAlpha = StructPropertyHandle->GetProperty()->HasMetaData(TEXT("HideAlphaChannel"));
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FMathStructCustomization::CustomizeStructHeader( InStructPropertyHandle, InHeaderRow, StructCustomizationUtils );
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}
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void FColorStructCustomization::MakeHeaderRow( TSharedRef<class IPropertyHandle>& InStructPropertyHandle, FDetailWidgetRow& Row )
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{
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// We'll set up reset to default ourselves
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const bool bDisplayResetToDefault = false;
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const FString DisplayNameOverride = TEXT("");
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FSlateFontInfo NormalText = IDetailLayoutBuilder::GetDetailFont();
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Row.NameContent()
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[
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StructPropertyHandle->CreatePropertyNameWidget( DisplayNameOverride, bDisplayResetToDefault )
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]
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.ValueContent()
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.MinDesiredWidth(250.0f)
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.MaxDesiredWidth(250.0f)
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[
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SNew( SHorizontalBox )
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+ SHorizontalBox::Slot()
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.VAlign(VAlign_Center)
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[
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SNew( SOverlay )
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+SOverlay::Slot()
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[
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// Displays the color with alpha unless it is ignored
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SAssignNew( ColorPickerParentWidget, SColorBlock )
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.Color( this, &FColorStructCustomization::OnGetColorForColorBlock )
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.ShowBackgroundForAlpha(true)
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.IgnoreAlpha( bIgnoreAlpha )
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.OnMouseButtonDown( this, &FColorStructCustomization::OnMouseButtonDownColorBlock )
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.Size( FVector2D( 35.0f, 12.0f ) )
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]
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+SOverlay::Slot()
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.HAlign(HAlign_Center)
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.VAlign(VAlign_Center)
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[
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SNew( STextBlock )
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.Text(NSLOCTEXT("PropertyEditor", "MultipleValues", "Multiple Values"))
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.Font(NormalText)
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.ColorAndOpacity(FSlateColor(FLinearColor::Black)) // we know the background is always white, so can safely set this to black
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.Visibility(this, &FColorStructCustomization::GetMultipleValuesTextVisibility)
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]
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]
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+ SHorizontalBox::Slot()
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.VAlign(VAlign_Center)
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[
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// Displays the color without alpha
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SNew( SColorBlock )
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.Color( this, &FColorStructCustomization::OnGetColorForColorBlock )
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.ShowBackgroundForAlpha(false)
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.IgnoreAlpha(true)
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.OnMouseButtonDown( this, &FColorStructCustomization::OnMouseButtonDownColorBlock )
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.Size( FVector2D( 35.0f, 12.0f ) )
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]
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];
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}
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void FColorStructCustomization::GetSortedChildren( TSharedRef<IPropertyHandle> InStructPropertyHandle, TArray< TSharedRef<IPropertyHandle> >& OutChildren )
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{
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static const FName Red("R");
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static const FName Green("G");
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static const FName Blue("B");
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static const FName Alpha("A");
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// We control the order of the colors via this array so it always ends up R,G,B,A
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TSharedPtr< IPropertyHandle > ColorProperties[4];
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uint32 NumChildren;
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InStructPropertyHandle->GetNumChildren( NumChildren );
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for( uint32 ChildIndex = 0; ChildIndex < NumChildren; ++ChildIndex )
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{
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TSharedRef<IPropertyHandle> ChildHandle = InStructPropertyHandle->GetChildHandle( ChildIndex ).ToSharedRef();
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const FName PropertyName = ChildHandle->GetProperty()->GetFName();
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if( PropertyName == Red )
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{
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ColorProperties[0] = ChildHandle;
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}
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else if( PropertyName == Green )
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{
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ColorProperties[1] = ChildHandle;
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}
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else if( PropertyName == Blue )
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{
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ColorProperties[2] = ChildHandle;
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}
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else
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{
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ColorProperties[3] = ChildHandle;
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}
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}
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OutChildren.Add( ColorProperties[0].ToSharedRef() );
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OutChildren.Add( ColorProperties[1].ToSharedRef() );
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OutChildren.Add( ColorProperties[2].ToSharedRef() );
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// Alpha channel may not be used
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if( !bIgnoreAlpha && ColorProperties[3].IsValid() )
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{
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OutChildren.Add( ColorProperties[3].ToSharedRef() );
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}
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}
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void FColorStructCustomization::CreateColorPicker( bool bUseAlpha, bool bOnlyRefreshOnOk )
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{
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int32 NumObjects = StructPropertyHandle->GetNumOuterObjects();
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SavedPreColorPickerColors.Empty();
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TArray<FString> PerObjectValues;
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StructPropertyHandle->GetPerObjectValues( PerObjectValues );
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for( int32 ObjectIndex = 0; ObjectIndex < NumObjects; ++ObjectIndex )
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{
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if( bIsLinearColor )
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{
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FLinearColor Color;
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Color.InitFromString( PerObjectValues[ObjectIndex] );
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SavedPreColorPickerColors.Add( Color );
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}
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else
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{
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FColor Color;
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Color.InitFromString( PerObjectValues[ObjectIndex] );
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SavedPreColorPickerColors.Add( Color.ReinterpretAsLinear() );
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}
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}
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FLinearColor InitialColor;
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GetColorAsLinear(InitialColor);
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// This needs to be meta data. Other colors could benefit from this
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const bool bRefreshOnlyOnOk = StructPropertyHandle->GetProperty()->GetOwnerClass()->IsChildOf(UMaterialExpressionConstant3Vector::StaticClass());
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FColorPickerArgs PickerArgs;
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PickerArgs.bUseAlpha = !bIgnoreAlpha;
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PickerArgs.bOnlyRefreshOnMouseUp = false;
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PickerArgs.bOnlyRefreshOnOk = bRefreshOnlyOnOk;
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PickerArgs.DisplayGamma = TAttribute<float>::Create( TAttribute<float>::FGetter::CreateUObject(GEngine, &UEngine::GetDisplayGamma) );
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PickerArgs.OnColorCommitted = FOnLinearColorValueChanged::CreateSP( this, &FColorStructCustomization::OnSetColorFromColorPicker );
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PickerArgs.OnColorPickerCancelled = FOnColorPickerCancelled::CreateSP( this, &FColorStructCustomization::OnColorPickerCancelled );
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PickerArgs.OnInteractivePickBegin = FSimpleDelegate::CreateSP( this, &FColorStructCustomization::OnColorPickerInteractiveBegin );
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PickerArgs.OnInteractivePickEnd = FSimpleDelegate::CreateSP( this, &FColorStructCustomization::OnColorPickerInteractiveEnd );
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PickerArgs.InitialColorOverride = InitialColor;
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PickerArgs.ParentWidget = ColorPickerParentWidget;
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OpenColorPicker(PickerArgs);
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}
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TSharedRef<SColorPicker> FColorStructCustomization::CreateInlineColorPicker()
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{
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int32 NumObjects = StructPropertyHandle->GetNumOuterObjects();
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SavedPreColorPickerColors.Empty();
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TArray<FString> PerObjectValues;
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StructPropertyHandle->GetPerObjectValues( PerObjectValues );
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for( int32 ObjectIndex = 0; ObjectIndex < NumObjects; ++ObjectIndex )
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{
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if( bIsLinearColor )
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{
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FLinearColor Color;
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Color.InitFromString( PerObjectValues[ObjectIndex] );
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SavedPreColorPickerColors.Add( Color );
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}
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else
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{
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FColor Color;
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Color.InitFromString( PerObjectValues[ObjectIndex] );
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SavedPreColorPickerColors.Add( Color.ReinterpretAsLinear() );
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}
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}
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FLinearColor InitialColor;
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GetColorAsLinear(InitialColor);
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// This needs to be meta data. Other colors could benefit from this
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const bool bRefreshOnlyOnOk = StructPropertyHandle->GetProperty()->GetOwnerClass()->IsChildOf(UMaterialExpressionConstant3Vector::StaticClass());
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return SNew(SColorPicker)
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.Visibility(this, &FColorStructCustomization::GetInlineColorPickerVisibility)
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.DisplayInlineVersion(true)
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.OnlyRefreshOnMouseUp(false)
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.OnlyRefreshOnOk(bRefreshOnlyOnOk)
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.DisplayGamma(TAttribute<float>::Create( TAttribute<float>::FGetter::CreateUObject(GEngine, &UEngine::GetDisplayGamma) ))
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.OnColorCommitted(FOnLinearColorValueChanged::CreateSP( this, &FColorStructCustomization::OnSetColorFromColorPicker ))
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.OnColorPickerCancelled(FOnColorPickerCancelled::CreateSP( this, &FColorStructCustomization::OnColorPickerCancelled ))
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.OnInteractivePickBegin(FSimpleDelegate::CreateSP( this, &FColorStructCustomization::OnColorPickerInteractiveBegin ))
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.OnInteractivePickEnd(FSimpleDelegate::CreateSP( this, &FColorStructCustomization::OnColorPickerInteractiveEnd ))
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.TargetColorAttribute(InitialColor);
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}
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void FColorStructCustomization::OnSetColorFromColorPicker( FLinearColor NewColor )
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{
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FString ColorString;
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if( bIsLinearColor )
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{
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ColorString = NewColor.ToString();
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}
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else
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{
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// Handled by the color picker
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const bool bSRGB = false;
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FColor NewFColor = NewColor.ToFColor(bSRGB);
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ColorString = NewFColor.ToString();
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}
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StructPropertyHandle->SetValueFromFormattedString( ColorString, bIsInteractive ? EPropertyValueSetFlags::InteractiveChange : 0 );
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}
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void FColorStructCustomization::OnColorPickerCancelled( FLinearColor OriginalColor )
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{
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TArray<FString> PerObjectColors;
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for( int32 ColorIndex = 0; ColorIndex < SavedPreColorPickerColors.Num(); ++ColorIndex )
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{
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if( bIsLinearColor )
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{
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PerObjectColors.Add( SavedPreColorPickerColors[ColorIndex].ToString() );
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}
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else
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{
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const bool bSRGB = false;
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FColor Color = SavedPreColorPickerColors[ColorIndex].ToFColor( bSRGB );
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PerObjectColors.Add( Color.ToString() );
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}
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}
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StructPropertyHandle->SetPerObjectValues( PerObjectColors );
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PerObjectColors.Empty();
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}
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void FColorStructCustomization::OnColorPickerInteractiveBegin()
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{
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bIsInteractive = true;
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GEditor->BeginTransaction( NSLOCTEXT("FColorStructCustomization", "SetColorProperty", "Set Color Property") );
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}
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void FColorStructCustomization::OnColorPickerInteractiveEnd()
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{
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bIsInteractive = false;
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// pushes the last value from the interactive change without the interactive flag
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FString ColorString;
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StructPropertyHandle->GetValueAsFormattedString(ColorString);
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StructPropertyHandle->SetValueFromFormattedString(ColorString);
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GEditor->EndTransaction();
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}
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FLinearColor FColorStructCustomization::OnGetColorForColorBlock() const
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{
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FLinearColor Color;
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GetColorAsLinear(Color);
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return Color;
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}
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FPropertyAccess::Result FColorStructCustomization::GetColorAsLinear(FLinearColor& OutColor) const
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{
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// Get each color component
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for(int32 ChildIndex = 0; ChildIndex < SortedChildHandles.Num(); ++ChildIndex)
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{
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FPropertyAccess::Result ValueResult = FPropertyAccess::Fail;
|
|
|
|
if(bIsLinearColor)
|
|
{
|
|
float ComponentValue = 0;
|
|
ValueResult = SortedChildHandles[ChildIndex]->GetValue(ComponentValue);
|
|
|
|
OutColor.Component(ChildIndex) = ComponentValue;
|
|
}
|
|
else
|
|
{
|
|
uint8 ComponentValue = 0;
|
|
ValueResult = SortedChildHandles[ChildIndex]->GetValue(ComponentValue);
|
|
|
|
// Convert the FColor to a linear equivalent
|
|
OutColor.Component(ChildIndex) = ComponentValue/255.0f;
|
|
}
|
|
|
|
switch(ValueResult)
|
|
{
|
|
case FPropertyAccess::MultipleValues:
|
|
{
|
|
// Default the color to white if we've got multiple values selected
|
|
OutColor = FLinearColor::White;
|
|
return FPropertyAccess::MultipleValues;
|
|
}
|
|
|
|
case FPropertyAccess::Fail:
|
|
return FPropertyAccess::Fail;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we've got this far, we have to have successfully read a color with a single value
|
|
return FPropertyAccess::Success;
|
|
}
|
|
|
|
EVisibility FColorStructCustomization::GetMultipleValuesTextVisibility() const
|
|
{
|
|
FLinearColor Color;
|
|
const FPropertyAccess::Result ValueResult = GetColorAsLinear(Color);
|
|
return (ValueResult == FPropertyAccess::MultipleValues) ? EVisibility::Visible : EVisibility::Collapsed;
|
|
}
|
|
|
|
FReply FColorStructCustomization::OnMouseButtonDownColorBlock(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
|
|
{
|
|
if ( MouseEvent.GetEffectingButton() != EKeys::LeftMouseButton )
|
|
{
|
|
return FReply::Unhandled();
|
|
}
|
|
|
|
CreateColorPicker( /*bUseAlpha*/ true, /*bRefreshOnlyOnOk*/ false );
|
|
|
|
//bIsInlineColorPickerVisible = !bIsInlineColorPickerVisible;
|
|
|
|
return FReply::Handled();
|
|
}
|
|
|
|
EVisibility FColorStructCustomization::GetInlineColorPickerVisibility() const
|
|
{
|
|
return bIsInlineColorPickerVisible ? EVisibility::Visible : EVisibility::Collapsed;
|
|
}
|
|
|
|
FReply FColorStructCustomization::OnOpenFullColorPickerClicked()
|
|
{
|
|
CreateColorPicker( /*bUseAlpha*/ true, /*bRefreshOnlyOnOk*/ false );
|
|
|
|
bIsInlineColorPickerVisible = false;
|
|
|
|
return FReply::Handled();
|
|
}
|