// Find all related sprites (not including self)
void FSpriteEditorViewportClient::UpdateRelatedSpritesList()
{
UPaperSprite* Sprite = GetSpriteBeingEdited();
UTexture2D* Texture = Sprite->GetSourceTexture();
if (Texture != nullptr)
{
FARFilter Filter;
Filter.ClassNames.Add(UPaperSprite::StaticClass()->GetFName());
const FString TextureString = FAssetData(Texture).GetExportTextName();
const FName SourceTexturePropName(TEXT("SourceTexture"));
Filter.TagsAndValues.Add(SourceTexturePropName, TextureString);
FAssetRegistryModule& AssetRegistryModule = FModuleManager::LoadModuleChecked<FAssetRegistryModule>("AssetRegistry");
TArray<FAssetData> SpriteAssetData;
AssetRegistryModule.Get().GetAssets(Filter, SpriteAssetData);
FAssetData CurrentAssetData(Sprite);
RelatedSprites.Empty();
for (int32 i = 0; i < SpriteAssetData.Num(); ++i)
{
FAssetData& SpriteAsset = SpriteAssetData[i];
if (SpriteAsset == Sprite)
{
continue;
}
const FString* SourceUVString = SpriteAsset.TagsAndValues.Find("SourceUV");
const FString* SourceDimensionString = SpriteAsset.TagsAndValues.Find("SourceDimension");
FVector2D SourceUV, SourceDimension;
if (SourceUVString != nullptr && SourceDimensionString != nullptr)
{
if (SourceUV.InitFromString(*SourceUVString) && SourceDimension.InitFromString(*SourceDimensionString))
{
FRelatedSprite RelatedSprite;
RelatedSprite.AssetData = SpriteAsset;
RelatedSprite.SourceUV = SourceUV;
RelatedSprite.SourceDimension = SourceDimension;
RelatedSprites.Add(RelatedSprite);
}
}
}
}
}
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 FSpriteEditorViewportClient::ConvertMarqueeToSourceTextureSpace(/*out*/ FIntPoint& OutStartPos, /*out*/ FIntPoint& OutDimension)
{
FSpriteGeometryEditMode* GeometryEditMode = ModeTools->GetActiveModeTyped<FSpriteGeometryEditMode>(FSpriteGeometryEditMode::EM_SpriteGeometry);
check(GeometryEditMode);
const FVector2D MarqueeStartPos = GeometryEditMode->GetMarqueeStartPos();
const FVector2D MarqueeEndPos = GeometryEditMode->GetMarqueeEndPos();
bool bSuccessful = false;
UPaperSprite* Sprite = SourceTextureViewComponent->GetSprite();
UTexture2D* SpriteSourceTexture = Sprite->GetSourceTexture();
if (SpriteSourceTexture != nullptr)
{
// Calculate world space positions
FSceneViewFamilyContext ViewFamily(FSceneViewFamily::ConstructionValues(Viewport, GetScene(), EngineShowFlags));
FSceneView* View = CalcSceneView(&ViewFamily);
const FVector StartPos = View->PixelToWorld(MarqueeStartPos.X, MarqueeStartPos.Y, 0);
const FVector EndPos = View->PixelToWorld(MarqueeEndPos.X, MarqueeEndPos.Y, 0);
// Convert to source texture space to work out the pixels dragged
FVector2D TextureSpaceStartPos = Sprite->ConvertWorldSpaceToTextureSpace(StartPos);
FVector2D TextureSpaceEndPos = Sprite->ConvertWorldSpaceToTextureSpace(EndPos);
if (TextureSpaceStartPos.X > TextureSpaceEndPos.X)
{
Swap(TextureSpaceStartPos.X, TextureSpaceEndPos.X);
}
if (TextureSpaceStartPos.Y > TextureSpaceEndPos.Y)
{
Swap(TextureSpaceStartPos.Y, TextureSpaceEndPos.Y);
}
const FIntPoint SourceTextureSize(SpriteSourceTexture->GetImportedSize());
const int32 SourceTextureWidth = SourceTextureSize.X;
const int32 SourceTextureHeight = SourceTextureSize.Y;
FIntPoint TSStartPos;
TSStartPos.X = FMath::Clamp<int32>((int32)TextureSpaceStartPos.X, 0, SourceTextureWidth - 1);
TSStartPos.Y = FMath::Clamp<int32>((int32)TextureSpaceStartPos.Y, 0, SourceTextureHeight - 1);
FIntPoint TSEndPos;
TSEndPos.X = FMath::Clamp<int32>((int32)TextureSpaceEndPos.X, 0, SourceTextureWidth - 1);
TSEndPos.Y = FMath::Clamp<int32>((int32)TextureSpaceEndPos.Y, 0, SourceTextureHeight - 1);
const FIntPoint TextureSpaceDimensions = TSEndPos - TSStartPos;
if ((TextureSpaceDimensions.X > 0) || (TextureSpaceDimensions.Y > 0))
{
OutStartPos = TSStartPos;
OutDimension = TextureSpaceDimensions;
bSuccessful = true;
}
}
return bSuccessful;
}