SDragAndDropWidget Class Reference

#include <DragAndDropWidget.h>

Inheritance diagram for SDragAndDropWidget:

Collaboration diagram for SDragAndDropWidget:

Public Member Functions
	SLATE_BEGIN_ARGS (SDragAndDropWidget)
void	Construct (const FArguments &InArgs)
FReply	OnDragOver (const FGeometry &MyGeometry, const FDragDropEvent &DragDropEvent) override
FReply	OnDrop (const FGeometry &MyGeometry, const FDragDropEvent &DragDropEvent) override

Detailed Description

A custom widget for handling drag-and-drop in Unreal Engine's runtime viewport.

Definition at line 15 of file DragAndDropWidget.h.

Member Function Documentation

Construct()

void SDragAndDropWidget::Construct

(

const FArguments &

InArgs

)

Definition at line 10 of file DragAndDropWidget.cpp.

{
 
}

OnDragOver()

FReply SDragAndDropWidget::OnDragOver ( const FGeometry &  MyGeometry, const FDragDropEvent &  DragDropEvent  )

override

Definition at line 15 of file DragAndDropWidget.cpp.

{
    TSharedPtr<FExternalDragOperation> DragDropOp = DragDropEvent.GetOperationAs<FExternalDragOperation>();
    if (DragDropOp.IsValid() && DragDropOp->HasFiles())
    {
        // For below OnDrop to work, Handled must be returned here.
        return FReply::Handled();
    }
 
    return FReply::Unhandled();
}

OnDrop()

FReply SDragAndDropWidget::OnDrop ( const FGeometry &  MyGeometry, const FDragDropEvent &  DragDropEvent  )

override

Definition at line 27 of file DragAndDropWidget.cpp.

{
    SCompoundWidget::OnDrop(MyGeometry, DragDropEvent);
 
    TSharedPtr<FExternalDragOperation> DragDropOp = DragDropEvent.GetOperationAs<FExternalDragOperation>();
    if (DragDropOp.IsValid() && DragDropOp->HasFiles())
    {
        const TArray<FString>& Files = DragDropOp->GetFiles();
        for (const FString& File : Files)
        {
#if WITH_EDITOR
            UE_LOG(LogTemp, Log, TEXT("Dropped file to window. Path: %s"), *File);
#endif
 
            if (FPaths::GetExtension(File).Equals(TEXT("json"), ESearchCase::IgnoreCase))
            {
                // Attempt to spawn objects defined in .json file using USimulatorJsonParser
                USimulatorJsonParser::ParseAndOperateJSONFile(File);
            }
        }
 
        return FReply::Handled();
    }
 
    return FReply::Unhandled();
}

References USimulatorJsonParser::ParseAndOperateJSONFile().

SLATE_BEGIN_ARGS()

SDragAndDropWidget::SLATE_BEGIN_ARGS ( SDragAndDropWidget  )

inline

Definition at line 20 of file DragAndDropWidget.h.

{}

---

The documentation for this class was generated from the following files:

• Unreal/Agrarsense/Source/Agrarsense/Widgets/DragAndDropWidget.h
• Unreal/Agrarsense/Source/Agrarsense/Widgets/DragAndDropWidget.cpp