public byte[] ResizeTo(byte[] sourceImageData, int size)
{
using (var ms = new MemoryStream(sourceImageData))
using (var inputStream = new SKManagedStream(ms, false))
using (var codec = SKCodec.Create(inputStream))
{
var sourceBitmap = SKBitmap.Decode(codec);
if (codec.EncodedOrigin != SKEncodedOrigin.TopLeft)
{
sourceBitmap = RotateAndFlip(sourceBitmap, codec.EncodedOrigin);
}
var sourceSize = Math.Max(sourceBitmap.Width, sourceBitmap.Height);
var ratio = size / (double)sourceSize;
using (var targetBitmap = new SKBitmap(new SKImageInfo((int)(sourceBitmap.Width * ratio), (int)(sourceBitmap.Height * ratio))))
using (var targetMemoryStream = new MemoryStream())
using (var thumbnailStream = new SKManagedWStream(targetMemoryStream))
{
sourceBitmap.ScalePixels(targetBitmap, SKFilterQuality.High);
SKPixmap.Encode(thumbnailStream, targetBitmap, SKEncodedImageFormat.Jpeg, 85);
thumbnailStream.Flush();
sourceBitmap.Dispose();
return(targetMemoryStream.ToArray());
}
}
}
public void SvgCanvasCreatesValidDrawing()
{
using (var stream = new MemoryStream())
{
// draw the SVG
using (var skStream = new SKManagedWStream(stream, false))
using (var writer = new SKXmlStreamWriter(skStream))
using (var canvas = SKSvgCanvas.Create(SKRect.Create(200, 150), writer))
{
var rectPaint = new SKPaint {
Color = SKColors.Blue, Style = SKPaintStyle.Fill
};
canvas.DrawRect(SKRect.Create(50, 70, 100, 30), rectPaint);
var circlePaint = new SKPaint {
Color = SKColors.Red, Style = SKPaintStyle.Fill
};
canvas.DrawOval(SKRect.Create(50, 70, 100, 30), circlePaint);
skStream.Flush();
}
// reset the sream
stream.Position = 0;
// read the SVG
var xdoc = XDocument.Load(stream);
var svg = xdoc.Root;
var ns = (XNamespace)"http://www.w3.org/2000/svg";
Assert.Equal(ns, svg.GetDefaultNamespace());
Assert.Equal("200", svg.Attribute("width").Value);
Assert.Equal("150", svg.Attribute("height").Value);
var rect = svg.Element(ns + "rect");
Assert.Equal("rgb(0,0,255)", rect.Attribute("fill").Value);
Assert.Equal("50", rect.Attribute("x").Value);
Assert.Equal("70", rect.Attribute("y").Value);
Assert.Equal("100", rect.Attribute("width").Value);
Assert.Equal("30", rect.Attribute("height").Value);
var ellipse = svg.Element(ns + "ellipse");
Assert.Equal("rgb(255,0,0)", ellipse.Attribute("fill").Value);
Assert.Equal("100", ellipse.Attribute("cx").Value);
Assert.Equal("85", ellipse.Attribute("cy").Value);
Assert.Equal("50", ellipse.Attribute("rx").Value);
Assert.Equal("15", ellipse.Attribute("ry").Value);
}
}
private void UpdateSvg()
{
bool exportPresenter = _previewWindow.svgExport.IsChecked == true;
bool showPrintable = _previewWindow.svgPrintable.IsChecked == true;
Task.Factory.StartNew(() =>
{
try
{
IImageCache ic = _projectEditor.Project;
var container = _projectEditor.Project.CurrentContainer;
var renderer = new SkiaSharpRenderer(true, 96.0);
if (!showPrintable)
{
renderer.State.DrawShapeState.Flags = ShapeStateFlags.Printable;
}
renderer.State.ImageCache = _projectEditor.Project;
var presenter = exportPresenter ? (ContainerPresenter) new ExportPresenter() : (ContainerPresenter) new EditorPresenter();
using (var ms = new MemoryStream())
{
using (var stream = new SKManagedWStream(ms))
{
using (var writer = new SKXmlStreamWriter(stream))
using (var canvas = SKSvgCanvas.Create(SKRect.Create(0, 0, (int)container.Width, (int)container.Height), writer))
{
presenter.Render(canvas, renderer, container, 0, 0);
}
stream.Flush();
}
var svg = Encoding.ASCII.GetString(ms.GetBuffer(), 0, (int)ms.Length);
Dispatcher.Invoke(() =>
{
_previewWindow.svgText.Text = svg;
});
}
}
catch (Exception) { }
});
}
private void UpdateSvg()
{
bool exportPresenter = _previewWindow.svgExport.IsChecked == true;
bool showPrintable = _previewWindow.svgPrintable.IsChecked == true;
Task.Factory.StartNew(() =>
{
try
{
IImageCache ic = _projectEditor.Project;
var container = _projectEditor.Project.CurrentContainer;
var renderer = new SkiaRenderer(true, 96.0);
if (!showPrintable)
{
renderer.State.DrawShapeState.Flags = ShapeStateFlags.Printable;
}
renderer.State.ImageCache = _projectEditor.Project;
var presenter = exportPresenter ? (ContainerPresenter)new ExportPresenter() : (ContainerPresenter)new EditorPresenter();
using (var ms = new MemoryStream())
{
using (var stream = new SKManagedWStream(ms))
{
using (var writer = new SKXmlStreamWriter(stream))
using (var canvas = SKSvgCanvas.Create(SKRect.Create(0, 0, (int)container.Width, (int)container.Height), writer))
{
presenter.Render(canvas, renderer, container, 0, 0);
}
stream.Flush();
}
var svg = Encoding.ASCII.GetString(ms.GetBuffer(), 0, (int)ms.Length);
Dispatcher.Invoke(() =>
{
_previewWindow.svgText.Text = svg;
});
}
}
catch (Exception) { }
});
}