120 lines
3.5 KiB
C++
120 lines
3.5 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 "Input/DragAndDrop.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Widgets/SBoxPanel.h"
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#include "Widgets/Layout/SBorder.h"
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#include "Widgets/Images/SImage.h"
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#include "Widgets/Text/STextBlock.h"
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#include "EditorStyleSet.h"
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#define LOCTEXT_NAMESPACE "DecoratedDragDrop"
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class FDecoratedDragDropOp: public FDragDropOperation
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FDecoratedDragDropOp, FDragDropOperation)
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/** String to show as hover text */
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FText CurrentHoverText;
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/** Icon to be displayed */
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const FSlateBrush* CurrentIconBrush;
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/** The color of the icon to be displayed. */
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FSlateColor CurrentIconColorAndOpacity;
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FDecoratedDragDropOp()
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: CurrentIconBrush(nullptr), CurrentIconColorAndOpacity(FLinearColor::White), DefaultHoverIcon(nullptr), DefaultHoverIconColorAndOpacity(FLinearColor::White)
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{}
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/** Overridden to provide public access */
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virtual void Construct() override
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{
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FDragDropOperation::Construct();
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}
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/** Set the decorator back to the icon and text defined by the default */
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virtual void ResetToDefaultToolTip()
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{
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CurrentHoverText = DefaultHoverText;
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CurrentIconBrush = DefaultHoverIcon;
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CurrentIconColorAndOpacity = DefaultHoverIconColorAndOpacity;
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}
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/** The widget decorator to use */
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virtual TSharedPtr<SWidget> GetDefaultDecorator() const override
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{
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// Create hover widget
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return SNew(SBorder)
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.BorderImage(FEditorStyle::GetBrush("Graph.ConnectorFeedback.Border"))
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.Content()
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[SNew(SHorizontalBox)
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+ SHorizontalBox::Slot()
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.AutoWidth()
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.Padding(0.0f, 0.0f, 3.0f, 0.0f)
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.VAlign(VAlign_Center)
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[SNew(SImage)
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.Image(this, &FDecoratedDragDropOp::GetIcon)
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.ColorAndOpacity(this, &FDecoratedDragDropOp::GetIconColorAndOpacity)]
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+ SHorizontalBox::Slot()
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.AutoWidth()
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.VAlign(VAlign_Center)
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[SNew(STextBlock)
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.Text(this, &FDecoratedDragDropOp::GetHoverText)]];
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}
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FText GetHoverText() const
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{
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return CurrentHoverText;
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}
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const FSlateBrush* GetIcon() const
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{
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return CurrentIconBrush;
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}
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FSlateColor GetIconColorAndOpacity() const
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{
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return CurrentIconColorAndOpacity;
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}
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/** Set the text and icon for this tooltip */
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void SetToolTip(const FText& Text, const FSlateBrush* Icon)
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{
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CurrentHoverText = Text;
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CurrentIconBrush = Icon;
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}
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/** Setup some default values for the decorator */
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void SetupDefaults()
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{
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DefaultHoverText = CurrentHoverText;
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DefaultHoverIcon = CurrentIconBrush;
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DefaultHoverIconColorAndOpacity = CurrentIconColorAndOpacity;
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}
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/** Gets the default hover text for this drag drop op. */
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FText GetDefaultHoverText() const
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{
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return DefaultHoverText;
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}
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protected:
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/** Default string to show as hover text */
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FText DefaultHoverText;
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/** Default icon to be displayed */
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const FSlateBrush* DefaultHoverIcon;
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/** Default color and opacity for the default icon to be displayed. */
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FSlateColor DefaultHoverIconColorAndOpacity;
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};
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#undef LOCTEXT_NAMESPACE
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