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Provide IPdfRenderer from ProcessedImage
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@ -11,11 +11,7 @@ public class GdiImageContext : ImageContext
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{
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private readonly GdiImageTransformer _imageTransformer;
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public GdiImageContext() : this(null)
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{
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}
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public GdiImageContext(IPdfRenderer? pdfRenderer) : base(typeof(GdiImage), pdfRenderer)
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public GdiImageContext() : base(typeof(GdiImage))
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{
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_imageTransformer = new GdiImageTransformer(this);
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}
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@ -9,7 +9,7 @@ public class GtkImageContext : ImageContext
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private readonly GtkImageTransformer _imageTransformer;
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private readonly LibTiffIo _tiffIo;
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public GtkImageContext(IPdfRenderer? pdfRenderer = null) : base(typeof(GtkImage), pdfRenderer)
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public GtkImageContext() : base(typeof(GtkImage))
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{
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_imageTransformer = new GtkImageTransformer(this);
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_tiffIo = new LibTiffIo(this);
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@ -21,7 +21,7 @@ public class ImageSharpImageContext : ImageContext
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Configuration = GetConfiguration()
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};
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public ImageSharpImageContext(IPdfRenderer? pdfRenderer = null) : base(typeof(ImageSharpImage), pdfRenderer)
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public ImageSharpImageContext() : base(typeof(ImageSharpImage))
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{
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_imageTransformer = new ImageSharpImageTransformer(this);
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}
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@ -9,7 +9,7 @@ public class MacImageContext : ImageContext
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private readonly MacImageTransformer _imageTransformer;
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public MacImageContext(IPdfRenderer? pdfRenderer = null) : base(typeof(MacImage), pdfRenderer)
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public MacImageContext() : base(typeof(MacImage))
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{
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NSApplication.CheckForIllegalCrossThreadCalls = false;
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_imageTransformer = new MacImageTransformer(this);
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@ -9,7 +9,7 @@ public class WpfImageContext : ImageContext
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{
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private readonly WpfImageTransformer _imageTransformer;
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public WpfImageContext(IPdfRenderer? pdfRenderer = null) : base(typeof(WpfImage), pdfRenderer)
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public WpfImageContext() : base(typeof(WpfImage))
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{
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_imageTransformer = new WpfImageTransformer(this);
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}
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@ -8,6 +8,8 @@ namespace NAPS2.Images;
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/// </summary>
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public interface IMemoryImage : IImageStorage
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{
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// TODO: Now that ImageContext objects are fully stateless, we can maybe eliminate ImageContext as a parameter
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// in IMemoryImage constructors and just create the appropriate ImageContext objects automatically.
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/// <summary>
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/// Gets the image context used to create this image.
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/// </summary>
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6
NAPS2.Images/IPdfRendererProvider.cs
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6
NAPS2.Images/IPdfRendererProvider.cs
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@ -0,0 +1,6 @@
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namespace NAPS2.Images;
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public interface IPdfRendererProvider
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{
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IPdfRenderer PdfRenderer { get; }
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}
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@ -5,8 +5,6 @@ namespace NAPS2.Images;
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public abstract class ImageContext
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{
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private readonly IPdfRenderer? _pdfRenderer;
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public static ImageFileFormat GetFileFormatFromExtension(string path)
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{
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return Path.GetExtension(path).ToLowerInvariant() switch
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@ -43,40 +41,39 @@ public abstract class ImageContext
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};
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}
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protected ImageContext(Type imageType, IPdfRenderer? pdfRenderer = null)
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protected ImageContext(Type imageType)
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{
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ImageType = imageType;
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_pdfRenderer = pdfRenderer;
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}
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// TODO: Add NotNullWhen attribute?
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private bool MaybeRenderPdf(ImageFileStorage fileStorage, out IMemoryImage? renderedPdf)
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private bool MaybeRenderPdf(ImageFileStorage fileStorage, IPdfRenderer? pdfRenderer, out IMemoryImage? renderedPdf)
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{
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if (Path.GetExtension(fileStorage.FullPath).ToLowerInvariant() == ".pdf")
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{
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if (_pdfRenderer == null)
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if (pdfRenderer == null)
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{
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throw new InvalidOperationException(
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"Unable to render pdf page as the ImageContext wasn't created with an IPdfRenderer.");
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"Unable to render pdf page as the IRenderableImage didn't implement IPdfRendererProvider.");
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}
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renderedPdf = _pdfRenderer.Render(this, fileStorage.FullPath, PdfRenderSize.Default).Single();
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renderedPdf = pdfRenderer.Render(this, fileStorage.FullPath, PdfRenderSize.Default).Single();
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return true;
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}
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renderedPdf = null;
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return false;
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}
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private bool MaybeRenderPdf(ImageMemoryStorage memoryStorage, out IMemoryImage? renderedPdf)
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private bool MaybeRenderPdf(ImageMemoryStorage memoryStorage, IPdfRenderer? pdfRenderer, out IMemoryImage? renderedPdf)
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{
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if (memoryStorage.TypeHint == ".pdf")
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{
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if (_pdfRenderer == null)
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if (pdfRenderer == null)
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{
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throw new InvalidOperationException(
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"Unable to render pdf page as the ImageContext wasn't created with an IPdfRenderer.");
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"Unable to render pdf page as the IRenderableImage didn't implement IPdfRendererProvider.");
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}
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var stream = memoryStorage.Stream;
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renderedPdf = _pdfRenderer.Render(this, stream.GetBuffer(), (int) stream.Length, PdfRenderSize.Default)
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renderedPdf = pdfRenderer.Render(this, stream.GetBuffer(), (int) stream.Length, PdfRenderSize.Default)
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.Single();
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return true;
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}
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@ -239,22 +236,27 @@ public abstract class ImageContext
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public IMemoryImage Render(IRenderableImage image)
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{
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var bitmap = RenderFromStorage(image.Storage);
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var bitmap = RenderWithoutTransforms(image);
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return PerformAllTransforms(bitmap, image.TransformState.Transforms);
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}
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public IMemoryImage RenderFromStorage(IImageStorage storage)
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public IMemoryImage RenderWithoutTransforms(IRenderableImage image)
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{
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return RenderFromStorage(image.Storage, (image as IPdfRendererProvider)?.PdfRenderer);
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}
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private IMemoryImage RenderFromStorage(IImageStorage storage, IPdfRenderer pdfRenderer)
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{
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switch (storage)
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{
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case ImageFileStorage fileStorage:
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if (MaybeRenderPdf(fileStorage, out var renderedPdf))
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if (MaybeRenderPdf(fileStorage, pdfRenderer, out var renderedPdf))
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{
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return renderedPdf!;
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}
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return Load(fileStorage.FullPath);
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case ImageMemoryStorage memoryStorage:
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if (MaybeRenderPdf(memoryStorage, out var renderedMemoryPdf))
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if (MaybeRenderPdf(memoryStorage, pdfRenderer, out var renderedMemoryPdf))
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{
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return renderedMemoryPdf!;
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}
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@ -18,7 +18,7 @@ public class ContextualTests : IDisposable
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FolderPath = Path.GetFullPath(Path.Combine("naps2_test_temp", Path.GetRandomFileName()));
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Folder = Directory.CreateDirectory(FolderPath);
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ImageContext = TestImageContextFactory.Get(new PdfiumPdfRenderer());
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ImageContext = TestImageContextFactory.Get();
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ScanningContext = new ScanningContext(ImageContext);
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ScanningContext.TempFolderPath = Path.Combine(FolderPath, "temp");
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Directory.CreateDirectory(ScanningContext.TempFolderPath);
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@ -278,7 +278,7 @@ public class ImageSerializerTests : ContextualTests
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public async Task PdfDeserializeToMemoryStorage(StorageConfig config)
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{
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config.Apply(this);
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using var destContext = new ScanningContext(TestImageContextFactory.Get(new PdfiumPdfRenderer()));
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using var destContext = new ScanningContext(TestImageContextFactory.Get());
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var importPath = Path.Combine(FolderPath, "import.pdf");
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File.WriteAllBytes(importPath, PdfResources.word_generated_pdf);
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@ -340,7 +340,7 @@ public class ImageSerializerTests : ContextualTests
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private ScanningContext CreateDestContextWithFileStorage()
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{
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return new ScanningContext(TestImageContextFactory.Get(new PdfiumPdfRenderer()))
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return new ScanningContext(TestImageContextFactory.Get())
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{
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FileStorageManager = FileStorageManager.CreateFolder(Path.Combine(FolderPath, "dest"))
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};
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@ -2,18 +2,18 @@ namespace NAPS2.Sdk.Tests;
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public static class TestImageContextFactory
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{
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public static ImageContext Get(IPdfRenderer pdfRenderer = null)
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public static ImageContext Get()
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{
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// TODO: For now we use ImageSharp on net6-windows for coverage. But eventually we'll need to do something
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// more comprehensive, i.e. set up some IMAGESHARP/SKIA compiler variables and have special test commands.
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#if MAC
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return new NAPS2.Images.Mac.MacImageContext(pdfRenderer);
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return new NAPS2.Images.Mac.MacImageContext();
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#elif LINUX
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return new NAPS2.Images.Gtk.GtkImageContext(pdfRenderer);
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return new NAPS2.Images.Gtk.GtkImageContext();
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#elif NET6_0_OR_GREATER
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return new NAPS2.Images.ImageSharp.ImageSharpImageContext(pdfRenderer);
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return new NAPS2.Images.ImageSharp.ImageSharpImageContext();
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#else
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return new NAPS2.Images.Gdi.GdiImageContext(pdfRenderer);
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return new NAPS2.Images.Gdi.GdiImageContext();
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#endif
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}
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}
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@ -1,3 +1,5 @@
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using NAPS2.Pdf;
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namespace NAPS2.Images;
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/// <summary>
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@ -9,7 +11,7 @@ namespace NAPS2.Images;
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/// reference with Clone() that will need to be disposed, and the underlying image storage will only be disposed once
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/// all related instances are disposed (or the parent ScanningContext is disposed).
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/// </summary>
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public class ProcessedImage : IRenderableImage, IDisposable, IEquatable<ProcessedImage>
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public class ProcessedImage : IRenderableImage, IPdfRendererProvider, IDisposable, IEquatable<ProcessedImage>
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{
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private readonly RefCount.Token _token;
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private bool _disposed;
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@ -189,4 +191,6 @@ public class ProcessedImage : IRenderableImage, IDisposable, IEquatable<Processe
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/// at any moment.
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/// </param>
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public record WeakReference(ProcessedImage ProcessedImage);
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IPdfRenderer IPdfRendererProvider.PdfRenderer => new PdfiumPdfRenderer();
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}
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@ -17,7 +17,7 @@ public class ThumbnailRenderer
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public IMemoryImage Render(ProcessedImage processedImage, int outputSize)
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{
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var image = _imageContext.RenderFromStorage(processedImage.Storage);
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var image = _imageContext.RenderWithoutTransforms(processedImage);
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var transformList = processedImage.TransformState.Transforms;
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if (!processedImage.TransformState.IsEmpty)
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{
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