83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Misc/Attribute.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Widgets/SCompoundWidget.h"
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#include "Framework/SlateDelegates.h"
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#include "Framework/Commands/UICommandInfo.h"
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#include "Styling/SlateTypes.h"
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#include "EditorStyleSet.h"
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#include "Styling/SlateWidgetStyleAsset.h"
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struct FSlateBrush;
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enum class ECheckBoxState : uint8;
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/**
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* A simple class that represents a toolbar button in an editor viewport toolbar
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*/
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class UNREALED_API SEditorViewportToolBarButton: public SCompoundWidget
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{
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public:
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SLATE_BEGIN_ARGS(SEditorViewportToolBarButton)
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: _ButtonType(EUserInterfaceActionType::Button), _ButtonStyle(&FEditorStyle::Get().GetWidgetStyle<FButtonStyle>("EditorViewportToolBar.Button")), _CheckBoxStyle(&FEditorStyle::Get().GetWidgetStyle<FCheckBoxStyle>("LevelViewportToolBar.CheckBoxButton")), _IsChecked(false)
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{}
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/** Called when the button is clicked */
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SLATE_EVENT(FOnClicked, OnClicked)
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/** The button type to use */
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SLATE_ARGUMENT(EUserInterfaceActionType, ButtonType)
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/** Style to use when this is a regular button type */
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SLATE_STYLE_ARGUMENT(FButtonStyle, ButtonStyle)
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/** Style to use when this is a check box type */
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SLATE_STYLE_ARGUMENT(FCheckBoxStyle, CheckBoxStyle)
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/** Checked state of the button */
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SLATE_ATTRIBUTE(bool, IsChecked)
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/** Style name of an image to use. Simple two state images are supported. An image can be different depending on checked/unchecked state */
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SLATE_ATTRIBUTE(FName, Image)
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/** Any custom content to show in the button in place of other content */
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SLATE_DEFAULT_SLOT(FArguments, Content)
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SLATE_END_ARGS()
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void Construct(const FArguments& Declaration);
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private:
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/**
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* Called when the button check state changes
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*
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* @param NewCheckedState The new state of the check box
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*/
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void OnCheckStateChanged(ECheckBoxState NewCheckedState);
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/**
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* Called when we need to get the image to show in the button
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*
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* @return The brush defining the image to use
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*/
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const FSlateBrush* OnGetButtonImage() const;
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/**
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* Called when we need to get the state of the check box button
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*
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* @return The state of the check box button
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*/
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ECheckBoxState OnIsChecked() const;
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private:
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/** Attribute used to get the state of a checkbox */
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TAttribute<bool> IsChecked;
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/** Delegate to call when the button is clicked */
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FOnClicked OnClickedDelegate;
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/** Cached brush to use when the button is checked */
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const FSlateBrush* CheckedBrush;
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/** Cached brush to use when the button is unchecked */
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const FSlateBrush* NormalBrush;
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};
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