68 lines
2.4 KiB
C++
68 lines
2.4 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/Text/STextBlock.h"
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#include "EditorStyleSet.h"
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#include "Widgets/Layout/SBorder.h"
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#include "Widgets/Images/SImage.h"
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#include "Styling/SlateIconFinder.h"
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class FClassDragDropOp: public FDragDropOperation
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FClassDragDropOp, FDragDropOperation)
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/** The classes to be dropped. */
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TArray<TWeakObjectPtr<UClass>> ClassesToDrop;
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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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// Just use the first class for the cursor decorator.
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const FSlateBrush* ClassIcon = FSlateIconFinder::FindIconBrushForClass(ClassesToDrop[0].Get());
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// If the class icon is the default brush, do not put it in the cursor decoration window.
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if (ClassIcon)
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{
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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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[SNew(SImage)
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.Image(ClassIcon)]
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+ SHorizontalBox::Slot()
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.AutoWidth()
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[SNew(STextBlock)
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.Text(FText::FromString(ClassesToDrop[0]->GetName()))]];
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}
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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) + SHorizontalBox::Slot()
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.AutoWidth()
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[SNew(STextBlock)
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.Text(FText::FromString(ClassesToDrop[0]->GetName()))]];
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}
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static TSharedRef<FClassDragDropOp> New(TWeakObjectPtr<UClass> ClassToDrop)
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{
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TSharedRef<FClassDragDropOp> Operation = MakeShareable(new FClassDragDropOp);
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Operation->ClassesToDrop.Add(ClassToDrop);
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Operation->Construct();
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return Operation;
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}
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protected:
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/** Adding hint text to all drag drop operations that drop locations could set, and the decorator could report. */
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FText HintText;
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};
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