SArticyObjectTileView.h

// Copyright (c) 2023 articy Software GmbH & Co. KG. All rights reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Styling/SlateBrush.h"
#include "Widgets/SCompoundWidget.h"
#include "ArticyObject.h"
#include "Widgets/Layout/SBorder.h"
#include "ArticyBaseTypes.h"
#include "Widgets/Images/SImage.h"
#include "Widgets/Text/STextBlock.h"
#include "Framework/Commands/UIAction.h"
 
DECLARE_DELEGATE_OneParam(FOnArticyIdChanged, const FArticyId&);

class ARTICYEDITOR_API SArticyObjectTileView : public SCompoundWidget
{
public:
    SLATE_BEGIN_ARGS(SArticyObjectTileView)
        : _LabelVisibility(EVisibility::Visible)
        , _OnMouseDoubleClick()
        , _ThumbnailSize(FVector2D(48.f, 48.f))
        , _ThumbnailPadding(FMargin(2.f))
        , _bIsReadOnly(false)
        {}
        SLATE_ATTRIBUTE(FArticyId, ArticyIdToDisplay)
        SLATE_ATTRIBUTE(EVisibility, LabelVisibility)
        SLATE_EVENT(FPointerEventHandler, OnMouseDoubleClick)
        SLATE_EVENT(FOnArticyIdChanged, OnArticyIdChanged)
        SLATE_ARGUMENT(FVector2D, ThumbnailSize)
        SLATE_ARGUMENT(FMargin, ThumbnailPadding)
        SLATE_ATTRIBUTE(bool, bIsReadOnly)
        SLATE_ARGUMENT(FUIAction, CopyAction)
        SLATE_ARGUMENT(FUIAction, PasteAction)
    SLATE_END_ARGS()
 
    
    void Construct(const FArguments& InArgs);

    virtual void Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime) override;

    void Update(const FArticyId& NewArticyId);
 
private:
    TAttribute<FArticyId> ArticyIdToDisplay; 
    FOnArticyIdChanged OnArticyIdChanged; 
    FOnArticyIdChanged OnArticyIdPasted; 
    FPointerEventHandler OnMouseDoubleClick; 
    TAttribute<EVisibility> LabelVisibility; 
    FVector2D ThumbnailSize; 
    FMargin ThumbnailPadding; 
    TAttribute<bool> bIsReadOnly; 
    FUIAction CopyAction; 
    FUIAction PasteAction; 
 
    mutable FArticyId CachedArticyId; 
    mutable TWeakObjectPtr<UArticyObject> CachedArticyObject; 
 
    TSharedPtr<SImage> PreviewImage; 
    TSharedPtr<STextBlock> DisplayNameTextBlock; 
    TSharedPtr<SBorder> WidgetContainerBorder; 
 
    mutable FSlateBrush PreviewBrush; 
    const FSlateBrush* TypeImage = nullptr; 
    TSharedPtr<FTextBlockStyle> EntityNameTextStyle; 
    bool bHasPreviewImage = false; 
 
private:
    void OnContextMenuOpening(class FMenuBuilder& Builder) const;

    virtual FReply OnMouseButtonUp(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;

    virtual FReply OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;

    void UpdateWidget();

    virtual FText OnGetEntityName() const;

    virtual const FSlateBrush* OnGetEntityImage() const;

    EVisibility OnHasPreviewImage() const;

    virtual FSlateColor OnGetArticyObjectColor() const;

    const FSlateBrush* GetTypeImage() const;
};