void FPaperExtractSpritesViewportClient::Draw(FViewport* Viewport, FCanvas* Canvas) { // Super will clear the viewport FPaperEditorViewportClient::Draw(Viewport, Canvas); UTexture2D* Texture = TextureBeingExtracted.Get(); if (Texture != nullptr) { const bool bUseTranslucentBlend = Texture->HasAlphaChannel(); // Fully stream in the texture before drawing it. Texture->SetForceMipLevelsToBeResident(30.0f); Texture->WaitForStreaming(); FLinearColor TextureDrawColor = Settings->TextureTint; //FLinearColor RectOutlineColor = FLinearColor::Yellow; const FLinearColor RectOutlineColor = Settings->OutlineColor; const float XPos = -ZoomPos.X * ZoomAmount; const float YPos = -ZoomPos.Y * ZoomAmount; const float Width = Texture->GetSurfaceWidth() * ZoomAmount; const float Height = Texture->GetSurfaceHeight() * ZoomAmount; Canvas->DrawTile(XPos, YPos, Width, Height, 0.0f, 0.0f, 1.0f, 1.0f, TextureDrawColor, Texture->Resource, bUseTranslucentBlend); for (FPaperExtractedSprite Sprite : ExtractedSprites) { DrawRectangle(Canvas, RectOutlineColor, Sprite.Rect); } } }
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); } } } }
void UFontThumbnailRenderer::GetThumbnailSize(UObject* Object, float Zoom,uint32& OutWidth,uint32& OutHeight) const { UFont* Font = Cast<UFont>(Object); if (Font != nullptr && Font->Textures.Num() > 0 && Font->Textures[0] != nullptr) { // Get the texture interface for the font text UTexture2D* Tex = Font->Textures[0]; OutWidth = FMath::TruncToInt(Zoom * (float)Tex->GetSurfaceWidth()); OutHeight = FMath::TruncToInt(Zoom * (float)Tex->GetSurfaceHeight()); } else { OutWidth = OutHeight = 0; } }