C++ UPaperSprite::SetPivotMode方法代码示例

void FSpriteEditorViewportClient::UpdateSourceTextureSpriteFromSprite(UPaperSprite* SourceSprite)
{
	UPaperSprite* TargetSprite = SourceTextureViewComponent->GetSprite();
	check(TargetSprite);

	if (SourceSprite != nullptr)
	{
		if ((SourceSprite->GetSourceTexture() != TargetSprite->GetSourceTexture()) || (TargetSprite->PixelsPerUnrealUnit != SourceSprite->PixelsPerUnrealUnit))
		{
			FComponentReregisterContext ReregisterSprite(SourceTextureViewComponent);

			FSpriteAssetInitParameters SpriteReinitParams;

			SpriteReinitParams.SetTextureAndFill(SourceSprite->SourceTexture);
			SpriteReinitParams.DefaultMaterialOverride = SourceSprite->DefaultMaterial;
			SpriteReinitParams.AlternateMaterialOverride = SourceSprite->AlternateMaterial;
			SpriteReinitParams.SetPixelsPerUnrealUnit(SourceSprite->PixelsPerUnrealUnit);
			TargetSprite->InitializeSprite(SpriteReinitParams);

			RequestFocusOnSelection(/*bInstant=*/ true);
		}


		// Position the sprite for the mode its meant to be in
		FVector2D CurrentPivotPosition;
		ESpritePivotMode::Type CurrentPivotMode = TargetSprite->GetPivotMode(/*out*/CurrentPivotPosition);

		FVector Translation(1.0f * PaperAxisZ);
		if (IsInSourceRegionEditMode())
		{
			if (CurrentPivotMode != ESpritePivotMode::Bottom_Left)
			{
				TargetSprite->SetPivotMode(ESpritePivotMode::Bottom_Left, FVector2D::ZeroVector);
				TargetSprite->PostEditChange();
			}
			SourceTextureViewComponent->SetSpriteColor(FLinearColor::White);
			SourceTextureViewComponent->SetWorldTransform(FTransform(Translation));
		}
		else
		{
			const FVector2D PivotPosition = SourceSprite->GetPivotPosition();
			if (CurrentPivotMode != ESpritePivotMode::Custom || CurrentPivotPosition != PivotPosition)
			{
				TargetSprite->SetPivotMode(ESpritePivotMode::Custom, PivotPosition);
				TargetSprite->PostEditChange();
			}

			// Tint the source texture darker to help distinguish the two
			SourceTextureViewComponent->SetSpriteColor(SpriteEditingConstants::SourceTextureDarkTintColor);

			const bool bRotated = SourceSprite->IsRotatedInSourceImage();
			if (bRotated)
			{
				FQuat Rotation(PaperAxisZ, FMath::DegreesToRadians(90.0f));
				SourceTextureViewComponent->SetWorldTransform(FTransform(Rotation, Translation));
			}
			else
			{
				SourceTextureViewComponent->SetWorldTransform(FTransform(Translation));
			}
		}
	}
	else
	{
		// No source sprite, so don't draw the target either
		TargetSprite->SourceTexture = nullptr;
	}
}

bool FPaperJsonSpriteSheetImporter::PerformImport(const FString& LongPackagePath, EObjectFlags Flags, UPaperSpriteSheet* SpriteSheet)
{
	FAssetToolsModule& AssetToolsModule = FModuleManager::GetModuleChecked<FAssetToolsModule>("AssetTools");

	GWarn->BeginSlowTask(NSLOCTEXT("Paper2D", "PaperJsonImporterFactory_ImportingSprites", "Importing Sprite Frame"), true, true);
	for (int32 FrameIndex = 0; FrameIndex < Frames.Num(); ++FrameIndex)
	{
		GWarn->StatusUpdate(FrameIndex, Frames.Num(), NSLOCTEXT("Paper2D", "PaperJsonImporterFactory_ImportingSprites", "Importing Sprite Frames"));

		// Check for user canceling the import
		if (GWarn->ReceivedUserCancel())
		{
			break;
		}

		const FSpriteFrame& Frame = Frames[FrameIndex];

		// Create a package for the frame
		const FString TargetSubPath = LongPackagePath + TEXT("/Frames");

		UObject* OuterForFrame = nullptr; // @TODO: Use this if we don't want them to be individual assets - Flipbook;

		// Create a frame in the package
		UPaperSprite* TargetSprite = nullptr;
		
		if (bIsReimporting)
		{
			TargetSprite = FindExistingSprite(Frame.FrameName.ToString());
		}
		
		if (TargetSprite == nullptr)
		{
			const FString SanitizedFrameName = ObjectTools::SanitizeObjectName(Frame.FrameName.ToString());
			const FString TentativePackagePath = PackageTools::SanitizePackageName(TargetSubPath + TEXT("/") + SanitizedFrameName);
			FString DefaultSuffix;
			FString AssetName;
			FString PackageName;
			AssetToolsModule.Get().CreateUniqueAssetName(TentativePackagePath, DefaultSuffix, /*out*/ PackageName, /*out*/ AssetName);

			// Create a unique package name and asset name for the frame
			if (OuterForFrame == nullptr)
			{
				// Create a package for the frame
				OuterForFrame = CreatePackage(nullptr, *PackageName);
			}

			// Create the asset
			TargetSprite = NewObject<UPaperSprite>(OuterForFrame, *AssetName, Flags);
			FAssetRegistryModule::AssetCreated(TargetSprite);
		}

		TargetSprite->Modify();
		FSpriteAssetInitParameters SpriteInitParams;
		SpriteInitParams.Texture = ImageTexture;

		if (NormalMapTexture != nullptr)
		{
			// Put the normal map into the additional textures array and ask for a lit material instead of unlit
			SpriteInitParams.AdditionalTextures.Add(NormalMapTexture);
		}

		SpriteInitParams.Offset = Frame.SpritePosInSheet;
		SpriteInitParams.Dimension = Frame.SpriteSizeInSheet;

		GetDefault<UPaperImporterSettings>()->ApplySettingsForSpriteInit(/*inout*/ SpriteInitParams, (NormalMapTexture != nullptr) ? ESpriteInitMaterialLightingMode::ForceLit : ESpriteInitMaterialLightingMode::Automatic);

		TargetSprite->InitializeSprite(SpriteInitParams);

		if (Frame.bRotated)
		{
			TargetSprite->SetRotated(true);
		}

		if (Frame.bTrimmed)
		{
			TargetSprite->SetTrim(Frame.bTrimmed, Frame.SpriteSourcePos, Frame.ImageSourceSize);
		}

		// Set up pivot on object based on Texture Packer json
		ESpritePivotMode::Type PivotType = GetBestPivotType(Frame.Pivot);
		FVector2D TextureSpacePivotPoint = FVector2D::ZeroVector;
		if (PivotType == ESpritePivotMode::Custom)
		{
			TextureSpacePivotPoint.X = Frame.SpritePosInSheet.X - Frame.SpriteSourcePos.X + Frame.ImageSourceSize.X * Frame.Pivot.X;
			TextureSpacePivotPoint.Y = Frame.SpritePosInSheet.Y - Frame.SpriteSourcePos.Y + Frame.ImageSourceSize.Y * Frame.Pivot.Y;
		}
		TargetSprite->SetPivotMode(PivotType, TextureSpacePivotPoint);

		// Create the entry in the animation
		SpriteSheet->SpriteNames.Add(Frame.FrameName.ToString());
		SpriteSheet->Sprites.Add(TargetSprite);
		
		TargetSprite->PostEditChange();
	}

	SpriteSheet->TextureName = ImageName;
	SpriteSheet->Texture = ImageTexture;
	SpriteSheet->NormalMapTextureName = ComputedNormalMapName;
	SpriteSheet->NormalMapTexture = NormalMapTexture;

//.........这里部分代码省略.........

UObject* USpriterImporterFactory::FactoryCreateText(UClass* InClass, UObject* InParent, FName InName, EObjectFlags Flags, UObject* Context, const TCHAR* Type, const TCHAR*& Buffer, const TCHAR* BufferEnd, FFeedbackContext* Warn)
{
	Flags |= RF_Transactional;

	FEditorDelegates::OnAssetPreImport.Broadcast(this, InClass, InParent, InName, Type);

 	FAssetToolsModule& AssetToolsModule = FModuleManager::GetModuleChecked<FAssetToolsModule>("AssetTools");
 
 	bool bLoadedSuccessfully = true;
 
 	const FString CurrentFilename = UFactory::GetCurrentFilename();
 	FString CurrentSourcePath;
 	FString FilenameNoExtension;
 	FString UnusedExtension;
 	FPaths::Split(CurrentFilename, CurrentSourcePath, FilenameNoExtension, UnusedExtension);
 
 	const FString LongPackagePath = FPackageName::GetLongPackagePath(InParent->GetOutermost()->GetPathName());
 
 	const FString NameForErrors(InName.ToString());
 	const FString FileContent(BufferEnd - Buffer, Buffer);
 	TSharedPtr<FJsonObject> DescriptorObject = ParseJSON(FileContent, NameForErrors);

	UPaperSpriterImportData* Result = nullptr;
 
	// Parse the file 
	FSpriterSCON DataModel;
	if (DescriptorObject.IsValid())
	{
		DataModel.ParseFromJSON(DescriptorObject, NameForErrors, /*bSilent=*/ false, /*bPreParseOnly=*/ false);
	}

	// Create the new 'hub' asset and convert the data model over
	if (DataModel.IsValid())
	{
		const bool bSilent = false;

		Result = NewObject<UPaperSpriterImportData>(InParent, InName, Flags);
		Result->Modify();

		//@TODO: Do some things here maybe?
		Result->ImportedData = DataModel;


		// Import the assets in the folders
		for (const FSpriterFolder& Folder : DataModel.Folders)
		{
			for (const FSpriterFile& File : Folder.Files)
			{
				const FString RelativeFilename = File.Name.Replace(TEXT("\\"), TEXT("/"), ESearchCase::CaseSensitive);
				const FString SourceSpriterFilePath = FPaths::Combine(*CurrentSourcePath, *RelativeFilename);

				FString RelativeDestPath;
				FString JustFilename;
				FString JustExtension;
				FPaths::Split(RelativeFilename, /*out*/ RelativeDestPath, /*out*/ JustFilename, /*out*/ JustExtension);

				if (File.FileType == ESpriterFileType::Sprite)
				{
					const FString TargetTexturePath = LongPackagePath / TEXT("Textures") / RelativeDestPath;
					const FString TargetSpritePath = LongPackagePath / TEXT("Sprites") / RelativeDestPath;

					// Import the texture
					UTexture2D* ImportedTexture = ImportTexture(SourceSpriterFilePath, TargetTexturePath);

					if (ImportTexture == nullptr)
					{
						SPRITER_IMPORT_ERROR(TEXT("Failed to import texture '%s' while importing '%s'"), *SourceSpriterFilePath, *CurrentFilename);
					}

					// Create a sprite from it
					UPaperSprite* ImportedSprite = CastChecked<UPaperSprite>(CreateNewAsset(UPaperSprite::StaticClass(), TargetSpritePath, JustFilename, Flags));

					const ESpritePivotMode::Type PivotMode = ConvertNormalizedPivotPointToPivotMode(File.PivotX, File.PivotY);
					const double PivotInPixelsX = File.Width * File.PivotX;
					const double PivotInPixelsY = File.Height * File.PivotY;

					ImportedSprite->SetPivotMode(PivotMode, FVector2D((float)PivotInPixelsX, (float)PivotInPixelsY));

					FSpriteAssetInitParameters SpriteInitParams;
					SpriteInitParams.SetTextureAndFill(ImportedTexture);
					GetDefault<UPaperImporterSettings>()->ApplySettingsForSpriteInit(SpriteInitParams);
					SpriteInitParams.SetPixelsPerUnrealUnit(1.0f);
					ImportedSprite->InitializeSprite(SpriteInitParams);
				}
				else if (File.FileType == ESpriterFileType::Sound)
				{
					// Import the sound
					const FString TargetAssetPath = LongPackagePath / RelativeDestPath;
					UObject* ImportedSound = ImportAsset(SourceSpriterFilePath, TargetAssetPath);
				}
				else if (File.FileType != ESpriterFileType::INVALID)
				{
					ensureMsgf(false, TEXT("Importer was not updated when a new entry was added to ESpriterFileType"));
				}
					// 		TMap<FString, class UTexture2D*> ImportedTextures;
					// 		TMap<FString, class UPaperSprite> ImportedSprites;

			}
		}

//.........这里部分代码省略.........