FSlateBrush UPaperSpriteBlueprintLibrary::MakeBrushFromSprite(UPaperSprite* Sprite, int32 Width, int32 Height)
{
if ( Sprite )
{
const FSlateAtlasData SpriteAtlasData = Sprite->GetSlateAtlasData();
const FVector2D SpriteSize = SpriteAtlasData.GetSourceDimensions();
FSlateBrush Brush;
Brush.SetResourceObject(Sprite);
Width = ( Width > 0 ) ? Width : SpriteSize.X;
Height = ( Height > 0 ) ? Height : SpriteSize.Y;
Brush.ImageSize = FVector2D(Width, Height);
return Brush;
}
return FSlateNoResource();
}
bool FSlateD3DTextureManager::LoadTexture( const FSlateBrush& InBrush, uint32& OutWidth, uint32& OutHeight, TArray<uint8>& OutDecodedImage )
{
FString ResourcePath = GetResourcePath( InBrush );
uint32 BytesPerPixel = 4;
bool bSucceeded = true;
TArray<uint8> RawFileData;
if( FFileHelper::LoadFileToArray( RawFileData, *ResourcePath ) )
{
IImageWrapperModule& ImageWrapperModule = FModuleManager::LoadModuleChecked<IImageWrapperModule>( FName("ImageWrapper") );
IImageWrapperPtr ImageWrapper = ImageWrapperModule.CreateImageWrapper( EImageFormat::PNG );
if ( ImageWrapper.IsValid() && ImageWrapper->SetCompressed( RawFileData.GetData(), RawFileData.Num() ) )
{
OutWidth = ImageWrapper->GetWidth();
OutHeight = ImageWrapper->GetHeight();
const TArray<uint8>* RawData = NULL;
if (ImageWrapper->GetRaw(ERGBFormat::RGBA, 8, RawData) == false)
{
UE_LOG(LogSlateD3D, Log, TEXT("Invalid texture format for Slate resource only RGBA and RGB pngs are supported: %s"), *InBrush.GetResourceName().ToString() );
bSucceeded = false;
}
else
{
OutDecodedImage = *RawData;
}
}
else
{
UE_LOG(LogSlateD3D, Log, TEXT("Only pngs are supported in Slate"));
bSucceeded = false;
}
}
else
{
UE_LOG(LogSlateD3D, Log, TEXT("Could not find file for Slate resource: %s"), *InBrush.GetResourceName().ToString() );
bSucceeded = false;
}
return bSucceeded;
}
void USlateBrushThumbnailRenderer::Draw(UObject* Object, int32 X, int32 Y, uint32 Width, uint32 Height, FRenderTarget* RenderTarget, FCanvas* Canvas)
{
USlateBrushAsset* SlateBrushAsset = Cast<USlateBrushAsset>(Object);
if (SlateBrushAsset)
{
FSlateBrush Brush = SlateBrushAsset->Brush;
UTexture2D* Texture = Cast<UTexture2D>( Brush.GetResourceObject() );
// Draw the background checkboard pattern
const int32 CheckerDensity = 8;
auto* Checker = UThumbnailManager::Get().CheckerboardTexture;
Canvas->DrawTile(
0.0f, 0.0f, Width, Height, // Dimensions
0.0f, 0.0f, CheckerDensity, CheckerDensity, // UVs
FLinearColor::White, Checker->Resource); // Tint & Texture
if (Texture)
{
switch(Brush.DrawAs)
{
case ESlateBrushDrawType::Image:
{
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, FVector2D( Width,Height ), Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
break;
case ESlateBrushDrawType::Border:
{
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, FVector2D( Width,Height ), Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
break;
case ESlateBrushDrawType::Box:
{
float NaturalWidth = Texture->GetSurfaceWidth();
float NaturalHeight = Texture->GetSurfaceHeight();
float TopPx = FMath::Clamp<float>(NaturalHeight * Brush.Margin.Top, 0, Height);
float BottomPx = FMath::Clamp<float>(NaturalHeight * Brush.Margin.Bottom, 0, Height);
float VerticalCenterPx = FMath::Clamp<float>(Height - TopPx - BottomPx, 0, Height);
float LeftPx = FMath::Clamp<float>(NaturalWidth * Brush.Margin.Left, 0, Width);
float RightPx = FMath::Clamp<float>(NaturalWidth * Brush.Margin.Right, 0, Width);
float HorizontalCenterPx = FMath::Clamp<float>(Width - LeftPx - RightPx, 0, Width);
// Top-Left
FVector2D TopLeftSize( LeftPx, TopPx );
{
FVector2D UV0( 0, 0 );
FVector2D UV1( Brush.Margin.Left, Brush.Margin.Top );
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, TopLeftSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Bottom-Left
FVector2D BottomLeftSize( LeftPx, BottomPx );
{
FVector2D UV0( 0, 1 - Brush.Margin.Bottom );
FVector2D UV1( Brush.Margin.Left, 1 );
FCanvasTileItem CanvasTile( FVector2D( X, Y + Height - BottomPx ), Texture->Resource, BottomLeftSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Top-Right
FVector2D TopRightSize( RightPx, TopPx );
{
FVector2D UV0( 1 - Brush.Margin.Right, 0 );
FVector2D UV1( 1, Brush.Margin.Top );
FCanvasTileItem CanvasTile( FVector2D( X + Width - RightPx, Y ), Texture->Resource, TopRightSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Bottom-Right
FVector2D BottomRightSize( RightPx, BottomPx );
{
FVector2D UV0( 1 - Brush.Margin.Right, 1 - Brush.Margin.Bottom );
FVector2D UV1( 1, 1 );
FCanvasTileItem CanvasTile( FVector2D( X + Width - RightPx, Y + Height - BottomPx ), Texture->Resource, BottomRightSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
//-----------------------------------------------------------------------
// Center-Vertical-Left
FVector2D CenterVerticalLeftSize( LeftPx, VerticalCenterPx );
{
FVector2D UV0( 0, Brush.Margin.Top );
FVector2D UV1( Brush.Margin.Left, 1 - Brush.Margin.Bottom );
FCanvasTileItem CanvasTile( FVector2D( X, Y + TopPx), Texture->Resource, CenterVerticalLeftSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Center-Vertical-Right
FVector2D CenterVerticalRightSize( RightPx, VerticalCenterPx );
{
FVector2D UV0( 1 - Brush.Margin.Right, Brush.Margin.Top );
FVector2D UV1( 1, 1 - Brush.Margin.Bottom );
FCanvasTileItem CanvasTile( FVector2D( X + Width - RightPx, Y + TopPx), Texture->Resource, CenterVerticalRightSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
//-----------------------------------------------------------------------
// Center-Horizontal-Top
FVector2D CenterHorizontalTopSize( HorizontalCenterPx, TopPx );
{
FVector2D UV0( Brush.Margin.Left, 0 );
FVector2D UV1( 1 - Brush.Margin.Right, Brush.Margin.Top );
FCanvasTileItem CanvasTile( FVector2D( X + LeftPx, Y), Texture->Resource, CenterHorizontalTopSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
// Center-Horizontal-Bottom
FVector2D CenterHorizontalBottomSize( HorizontalCenterPx, BottomPx );
{
FVector2D UV0( Brush.Margin.Left, 1 - Brush.Margin.Bottom );
FVector2D UV1( 1 - Brush.Margin.Right, 1 );
FCanvasTileItem CanvasTile( FVector2D( X + LeftPx, Y + Height - BottomPx ), Texture->Resource, CenterHorizontalBottomSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
//-----------------------------------------------------------------------
// Center
FVector2D CenterSize( HorizontalCenterPx, VerticalCenterPx );
{
FVector2D UV0( Brush.Margin.Left, Brush.Margin.Top );
FVector2D UV1( 1 - Brush.Margin.Right, 1 - Brush.Margin.Bottom );
FCanvasTileItem CanvasTile( FVector2D( X + LeftPx, Y + TopPx), Texture->Resource, CenterSize, UV0, UV1, Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
}
break;
case ESlateBrushDrawType::NoDrawType:
{
FCanvasTileItem CanvasTile( FVector2D( X, Y ), Texture->Resource, FVector2D( Width,Height ), Brush.TintColor.GetSpecifiedColor() );
CanvasTile.BlendMode = SE_BLEND_Translucent;
CanvasTile.Draw( Canvas );
}
break;
default:
check(false);
}
}
}
}
bool FSlateRHIResourceManager::LoadTexture( const FSlateBrush& InBrush, uint32& Width, uint32& Height, TArray<uint8>& DecodedImage )
{
FString ResourcePath = GetResourcePath( InBrush );
return LoadTexture(InBrush.GetResourceName(), ResourcePath, Width, Height, DecodedImage);
}
static void SetMaterial(void* Data, UMaterialInterface* Material)
{
FSlateBrush* Brush = (FSlateBrush*)Data;
Brush->SetResourceObject(Material);
}
static UMaterialInterface* GetMaterial(void* Data)
{
FSlateBrush* Brush = (FSlateBrush*)Data;
return Cast<UMaterialInterface>(Brush->GetResourceObject());
}
