void FSpriteEditorViewportClient::EndTransaction()
{
if (bManipulationDirtiedSomething)
{
UPaperSprite* Sprite = GetSpriteBeingEdited();
if (IsInSourceRegionEditMode())
{
// Snap to pixel grid at the end of the drag
Sprite->SourceUV.X = FMath::Max(FMath::RoundToFloat(Sprite->SourceUV.X), 0.0f);
Sprite->SourceUV.Y = FMath::Max(FMath::RoundToFloat(Sprite->SourceUV.Y), 0.0f);
Sprite->SourceDimension.X = FMath::Max(FMath::RoundToFloat(Sprite->SourceDimension.X), 0.0f);
Sprite->SourceDimension.Y = FMath::Max(FMath::RoundToFloat(Sprite->SourceDimension.Y), 0.0f);
}
Sprite->PostEditChange();
}
bManipulationDirtiedSomething = false;
if (ScopedTransaction != nullptr)
{
delete ScopedTransaction;
ScopedTransaction = 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;
GWarn->EndSlowTask();
return true;
}
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;
}
}