tk/spectre.console
1
0
Fork 0
mirror of https://github.com/nsnail/spectre.console.git synced 2025-04-16 00:42:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

Implemented buffer/stream constructors for CanvasImage (#246)

Browse Source 
* Implemented buffer/stream constructors for CanvasImage and added section to Canvas example

Signed-off-by: David Butler <mail@davidbutlerdesign.co.uk>
This commit is contained in:
David Butler 2021-01-27 17:12:22 +00:00 committed by GitHub
parent ad49b6aa67
commit 953008b5e3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 33 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
examples/Console/Canvas/Canvas.csproj
View File

@ -14,9 +14,9 @@
</ItemGroup>
<ItemGroup>
<None Update="cake.png">
<EmbeddedResource Include="cake.png">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
</EmbeddedResource>
</ItemGroup>
</Project>

12
examples/Console/Canvas/Program.cs
View File

@ -1,3 +1,5 @@
using System.Diagnostics;
using System.Reflection;
using SixLabors.ImageSharp.Processing;
using Spectre.Console;
using Spectre.Console.Rendering;
@ -23,6 +25,16 @@ namespace CanvasExample
image.NoMaxWidth();
image.Mutate(ctx => ctx.Grayscale().Rotate(-45).EntropyCrop());
Render(image, "Image from file (fit, greyscale, rotated)");
// Draw image again, but load from embedded resource rather than file
using (var fileStream = Assembly.GetExecutingAssembly().GetManifestResourceStream("Canvas.cake.png"))
{
Debug.Assert(fileStream != null);
var embeddedImage = new CanvasImage(fileStream);
embeddedImage.BilinearResampler();
embeddedImage.MaxWidth(16);
Render(embeddedImage, "Image from embedded resource (16 wide)");
}
}
private static void Render(IRenderable canvas, string title)

19
src/Spectre.Console.ImageSharp/CanvasImage.cs
View File

@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.IO;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Processing.Processors.Transforms;
@ -51,6 +52,24 @@ namespace Spectre.Console
Image = SixLabors.ImageSharp.Image.Load<Rgba32>(filename);
}
/// <summary>
/// Initializes a new instance of the <see cref="CanvasImage"/> class.
/// </summary>
/// <param name="data">Buffer containing an image.</param>
public CanvasImage(ReadOnlySpan<byte> data)
{
Image = SixLabors.ImageSharp.Image.Load<Rgba32>(data);
}
/// <summary>
/// Initializes a new instance of the <see cref="CanvasImage"/> class.
/// </summary>
/// <param name="data">Stream containing an image.</param>
public CanvasImage(Stream data)
{
Image = SixLabors.ImageSharp.Image.Load<Rgba32>(data);
}
/// <inheritdoc/>
protected override Measurement Measure(RenderContext context, int maxWidth)
{