public static Graphic LoadSvg(TextReader reader)
{
var valuesParser = new ValuesParser();
var svgr = new SvgReader(reader, new StylesParser(valuesParser), valuesParser);
return(svgr.Graphic);
}
public static Graphic Read(string path)
{
using (var s = OpenResource(path)) {
var r = new SvgReader(new StreamReader(s));
return(r.Graphic);
}
}
public void EmptyElementHasZeroPolygons()
{
var reader = new SvgReader(new System.Xml.Linq.XElement("test"));
IEnumerable <Polygon> lp = reader.ExtractPolygons();
Assert.AreEqual(0, lp.Count());
}
public async Task <IImage> GetSvgImage(string path, float width, float height, CancellationToken token)
{
return(await Task <IImage> .Factory.StartNew(() =>
{
var assembly = typeof(ToolbarItemEx).Assembly;
var fullPath = $"ToolbarBadgeSample.Resources.Images.{path}";
using (var resource = assembly.GetManifestResourceStream(fullPath))
{
if (resource == null)
{
throw new Exception(
$"Error retrieving {path} make sure Build Action is Embedded Resource. Full path {fullPath}");
}
var svg = new SvgReader(new StreamReader(resource));
var outputSize = svg.Graphic.Size;
if (width > 0 && height > 0)
{
outputSize = new Size(width, height);
var scale = svg.Graphic.Size.ScaleThatFits(outputSize);
svg.Graphic.ViewBox = new Rect(Point.Zero, svg.Graphic.Size / scale);
}
var imageCanvas = _platform.CreateImageCanvas(outputSize, _scale);
svg.Graphic.Draw(imageCanvas);
return imageCanvas.GetImage();
}
}, token));
}
Graphic ReadString(string svg, Brush defaultBrush = null)
{
var r = new SvgReader(svg, defaultBrush: defaultBrush);
Assert.IsTrue(r.Graphic.Children.Count >= 0);
return(r.Graphic);
}
public static async Task <Bitmap> GetBitmapAsync(SvgImage svgImage, int width, int height)
{
Bitmap result = null;
Stream svgStream = await SvgService.GetSvgStreamAsync(svgImage).ConfigureAwait(false);
await Task.Run(() =>
{
var svgReader = new SvgReader(new StreamReader(svgStream));
var graphics = svgReader.Graphic;
var scale = 1.0;
if (height >= width)
{
scale = height / graphics.Size.Height;
}
else
{
scale = width / graphics.Size.Width;
}
var canvas = new AndroidPlatform().CreateImageCanvas(graphics.Size, scale);
graphics.Draw(canvas);
var image = (BitmapImage)canvas.GetImage();
result = image.Bitmap;
});
return(result);
}
Graphic ReadString(string svg)
{
var r = new SvgReader(new StringReader(svg));
Assert.IsTrue(r.Graphic.Children.Count >= 0);
return(r.Graphic);
}
public void Load(string data)
{
var reader = new SvgReader(data);
g = reader.Graphic;
RefreshDraw();
}
public new void ReadContent(XmlElement xmlElement, SvgReader svgReader)
{
base.ReadContent(xmlElement, svgReader);
_text = null;
foreach (var node in xmlElement.ChildNodes)
{
var childElement = node as XmlElement;
if (childElement != null)
{
var svgNode = svgReader.CreateSvgNodeFromXml(childElement);
svgReader.Read(svgNode, childElement);
if (svgNode is SvgText)
{
_text = svgNode as SvgText;
}
}
if (_text != null)
{
break;
}
}
if (_text != null)
{
ReadText(_text);
}
else
{
throw new SvgParseException(Resources.Exceptions.CanNotParseSvgVoText);
}
}
public static DrawingImage Open(string fileName)
{
using (FileStream stream = new FileStream(imagesPath + fileName, FileMode.Open, FileAccess.Read))
{
return(SvgReader.Load(stream));
}
}
public void Deserialize(Stream stream, ICanvas canvas)
{
try
{
using (var packageStorage = BaseArchive.CreateArchive(stream))
{
var xmlDoc = new XmlDocument();
using (var outStream = packageStorage.GetReadStream(_canvasFileName))
xmlDoc.Load(outStream);
var svgReader = new SvgReader(new TypeResolver(), new VoAttributeReader());
var svgDoc = svgReader.CreateSvgNodeFromXml(xmlDoc.DocumentElement) as SvgDocument;
svgReader.Read(svgDoc, xmlDoc.DocumentElement);
var svgConverter = new SvgConverter(packageStorage);
svgConverter.FromSvg(canvas, svgDoc);
using (var cmykProfileStream = packageStorage.GetReadStream(Path.Combine(_iccFolder, _cmykProfileFileName)))
canvas.CmykColorProfile = new ColorProfile(cmykProfileStream);
using (var grayscaleProfileStream = packageStorage.GetReadStream(Path.Combine(_iccFolder, _grayscaleProfileFileName)))
canvas.GrayscaleColorProfile = new ColorProfile(grayscaleProfileStream);
using (var rgbProfileStream = packageStorage.GetReadStream(Path.Combine(_iccFolder, _rgbProfileFileName)))
canvas.RgbColorProfile = new ColorProfile(rgbProfileStream);
}
}
catch (Exception ex)
{
Configuration.Logger.Error(Exceptions.CanNotDeserializeCanvas, ex);
throw new SerializationException(Exceptions.CanNotDeserializeCanvas, ex);
}
}
public void ReadContent(XmlElement xmlElement, SvgReader svgReader)
{
_background = null;
_border = null;
foreach (var node in xmlElement.ChildNodes)
{
var childElement = node as XmlElement;
if (childElement != null && childElement.Name != "clipPath")
{
var svgNode = svgReader.CreateSvgNodeFromXml(childElement);
svgReader.Read(svgNode, childElement);
if (svgNode is SvgVoContent)
{
Content = svgNode as SvgVoContent;
}
else if (svgNode is SvgPath)
{
var path = svgNode as SvgPath;
if (path.ID.Contains("_background"))
{
_background = path;
}
else if (path.ID.Contains("_border"))
{
_border = path;
}
}
else if (svgNode is SvgRect)
{
var rect = svgNode as SvgRect;
if (rect.ID.Contains("_background"))
{
_background = RectToPath(rect);
}
else if (rect.ID.Contains("_border"))
{
_border = RectToPath(rect);
}
}
}
if (_background != null && _border != null && Content != null)
{
break;
}
}
if (_background != null && _border != null)
{
Path = _border.Path;
Fill = _background.Fill;
Stroke = _border.Stroke;
StrokeWidth = _border.StrokeWidth;
}
else
{
throw new SvgParseException(Resources.Exceptions.CanNotParseSvgVoPlaceholder);
}
}
private DrawingImage SvgToimge(string name)
{
DrawingImage svg_image;
string file_name = AppDomain.CurrentDomain.BaseDirectory + @"\Resources\" + name.ToString();
using (FileStream file_stream = new FileStream(file_name, FileMode.Open, FileAccess.Read))
svg_image = SvgReader.Load(file_stream, new SvgReaderOptions(false));
return(svg_image);
}
/// <summary>
/// 将SVG矢量图转换为可用资源
/// 用法<Image Source="{Binding ConverterParameter=pc_Button_search.svg, Converter={StaticResource SvgToXamlConverter}, Mode=OneWay}" />
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
DrawingImage svg_image;
string file_name = AppDomain.CurrentDomain.BaseDirectory + @"\Resources\" + parameter.ToString();
using (FileStream file_stream = new FileStream(file_name, FileMode.Open, FileAccess.Read))
svg_image = SvgReader.Load(file_stream, new SvgReaderOptions(false));
return(svg_image);
}
public async void Render( )
{
//added check because both *may* not be set at the same time, this negates the error throwing unfortuantely. --bwc
if (String.IsNullOrEmpty(Element.SvgPath) || (Element.SvgAssembly == null))
{
return;
}
if (_formsControl != null)
{
await Task.Run(async( ) =>
{
Stream svgStream = _formsControl.SvgAssembly.GetManifestResourceStream(_formsControl.SvgPath);
if (svgStream == null)
{
throw new Exception(string.Format("Error retrieving {0} make sure Build Action is Embedded Resource", _formsControl.SvgPath));
}
SvgReader r = new SvgReader(new StreamReader(svgStream), new StylesParser(new ValuesParser( )), new ValuesParser( ));
this.ReplaceColors(r.Graphic, Element.ReplacementColors);
Graphic graphics = r.Graphic;
int width = PixelToDP((int)_formsControl.WidthRequest <= 0 ? 100 : (int)_formsControl.WidthRequest);
int height = PixelToDP((int)_formsControl.HeightRequest <= 0 ? 100 : (int)_formsControl.HeightRequest);
double scale = 1.0;
if (height >= width)
{
scale = height / graphics.Size.Height;
}
else
{
scale = width / graphics.Size.Width;
}
IImageCanvas canvas = new AndroidPlatform( ).CreateImageCanvas(graphics.Size, scale);
graphics.Draw(canvas);
BitmapImage image = (BitmapImage)canvas.GetImage( );
return(image);
}).ContinueWith(taskResult =>
{
Device.BeginInvokeOnMainThread(() =>
{
var imageView = new ImageView(Context);
imageView.SetScaleType(ImageView.ScaleType.FitXy);
imageView.SetImageBitmap(taskResult.Result.Bitmap);
SetNativeControl(imageView);
});
});
}
}
public static DrawingImage SvgIcon(String path)
{
string filePath = System.IO.Path.GetFullPath(path);
using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
DrawingImage image = SvgReader.Load(stream);
return(image);
}
}
Graphic Read(string path)
{
using (var s = OpenResource(path)) {
var r = new SvgReader(new StreamReader(s));
Assert.IsTrue(r.Graphic.Children.Count >= 0);
Assert.IsTrue(r.Graphic.Size.Width > 1);
Assert.IsTrue(r.Graphic.Size.Height > 1);
return(r.Graphic);
}
}
public void XmlWithOneElementHasOnePolygon()
{
var reader = new SvgReader(System.Xml.Linq.XElement.Parse(
" <svg><polygon\n points=\"1088.95,2511.82 1169.85,2570.6 1138.95,2475.49 1058.05,2416.71 \" transform=\"matrix(0.05880683,0,0,0.0624649,-51.602926,-159.78388)\" /></svg>"
));
IEnumerable <Polygon> lp = reader.ExtractPolygons();
Assert.AreEqual(1, lp.Count());
}
public void XmlWithOneElementHasCorrectPolygon()
{
var reader = new SvgReader(System.Xml.Linq.XElement.Parse(
" <svg><polygon\n points=\"1088.95,2511.82 1169.85,2570.6 1138.95,2475.49 1058.05,2416.71 \" /></svg>"
));
IEnumerable <Polygon> lp = reader.ExtractPolygons();
Assert.IsTrue(lp.Where(poly => poly.Vertices.Where(pt => Math.Abs(pt.X - 1058.05) < 1e-8 && Math.Abs(pt.Y - 2416.71) < 1e-8).Any()).Any());
}
Graphic Read (string path)
{
using (var s = OpenResource (path)) {
var r = new SvgReader (new StreamReader (s));
Assert.IsTrue (r.Graphic.Children.Count >= 0);
Assert.IsTrue (r.Graphic.Size.Width > 1);
Assert.IsTrue (r.Graphic.Size.Height > 1);
return r.Graphic;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (parameter == null)
{
return(null);
}
var directory = AppDomain.CurrentDomain.BaseDirectory;
var path = directory + parameter;
using var stream = new FileStream(path, FileMode.Open, FileAccess.Read);
return(SvgReader.Load(stream));
}
protected override async void OnElementChanged(ElementChangedEventArgs <SvgImage> e)
{
base.OnElementChanged(e);
if (_formsControl != null)
{
await Task.Run(async() =>
{
var svgStream = _formsControl.SvgAssembly.GetManifestResourceStream(_formsControl.SvgPath);
if (svgStream == null)
{
throw new Exception(string.Format("Error retrieving {0} make sure Build Action is Embedded Resource",
_formsControl.SvgPath));
}
var r = new SvgReader(new StreamReader(svgStream), new StylesParser(new ValuesParser()), new ValuesParser());
var graphics = r.Graphic;
var width = PixelToDP((int)_formsControl.WidthRequest <= 0 ? 100 : (int)_formsControl.WidthRequest);
var height = PixelToDP((int)_formsControl.HeightRequest <= 0 ? 100 : (int)_formsControl.HeightRequest);
var scale = 1.0;
if (height >= width)
{
scale = height / graphics.Size.Height;
}
else
{
scale = width / graphics.Size.Width;
}
var canvas = new AndroidPlatform().CreateImageCanvas(graphics.Size, scale);
graphics.Draw(canvas);
var image = (BitmapImage)canvas.GetImage();
return(image);
}).ContinueWith(taskResult =>
{
Device.BeginInvokeOnMainThread(() =>
{
var imageView = new ImageView(Context);
imageView.SetScaleType(ImageView.ScaleType.CenterInside);
imageView.SetImageBitmap(taskResult.Result.Bitmap);
SetNativeControl(imageView);
});
});
}
}
public void XmlWithTwoElementHasTwoPolygons()
{
var reader = new SvgReader(System.Xml.Linq.XElement.Parse(
"<svg>"
+ "<polygon\n points=\"1,2 3,4 5,6 \" />"
+ "<polygon\n points=\"1088.95,2511.82 1169.85,2570.6 1138.95,2475.49 1058.05,2416.71 \"/></svg>"
));
IEnumerable <Polygon> lp = reader.ExtractPolygons();
Assert.AreEqual(2, lp.Count());
}
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
// here you can return DrawingImage based on value that represents name field of your structure
// just for example the piece of your code:
if (value is string && !String.IsNullOrEmpty(value as string))
{
return(SvgReader.Load(new MemoryStream(new System.Net.WebClient().DownloadData(value as string))));
}
else
{
// if value is null or not of string type
return(yourDefaultImage);
}
}
Graphic Read(string path, Brush defaultBrush = null, Font defaultFont = null)
{
using (var s = OpenResource(path)) {
var r = new SvgReader(new StreamReader(s), defaultBrush: defaultBrush, defaultFont: defaultFont);
if (r.Errors.Count > 0)
{
throw new Exception("Error while reading", r.Errors[0]);
}
Assert.IsTrue(r.Graphic.Children.Count >= 0);
Assert.IsTrue(r.Graphic.Size.Width > 1);
Assert.IsTrue(r.Graphic.Size.Height > 1);
return(r.Graphic);
}
}
Graphic ReadString(string svg, Brush defaultBrush = null, Font defaultFont = null)
{
var r = new SvgReader(svg, defaultBrush: defaultBrush, defaultFont: defaultFont);
Assert.IsTrue(r.Graphic.Children.Count >= 0);
if (r.Errors.Count > 0)
{
throw new Exception("Error while reading", r.Errors[0]);
}
Assert.IsTrue(r.Graphic.Children.Count >= 0);
Assert.IsTrue(r.Graphic.Size.Width > 1);
Assert.IsTrue(r.Graphic.Size.Height > 1);
return(r.Graphic);
}
public void OneStrokeIsFound()
{
var source = System.Xml.Linq.XElement.Parse(
"<svg>"
+ "<polygon\n points=\"1,2 3,4 5,6 \" style=\"fill:#bbbbcc;stroke:#00aaff;stroke-width:1\"/>"
+ "</svg>"
);
var reader = new SvgReader(source);
List <SvgObjectProperty> strokes = reader.ReadObjectProperties().Where(s => s.Type == SvgPropertyType.Stroke).ToList();
Assert.AreEqual(1, strokes.Count);
Assert.AreEqual("stroke:#00aaff", strokes[0].Color);
}
private void EventSink_ImportSvgRequested()
{
this.BeginInvoke((MethodInvoker) delegate()
{
var dialog = SetupImportSvgDialog;
if (dialog.ShowDialog() == DialogResult.OK)
{
var filePath = dialog.FileName;
SvgReader reader = new SvgReader(filePath);
}
});
}
public static ImageSource LoadSvg(string filename)
{
var info = Load(filename);
if (info == null)
{
return(null);
}
using (var stream = info.Stream)
{
return(SvgReader.Load(stream));
}
}
public void DefaultFillForUndefinedColor()
{
var source = System.Xml.Linq.XElement.Parse(
"<svg>"
+ "<polygon\n points=\"1,2 3,4 5,6 \" style=\"fill:#bcdaa0;stroke:#000000;stroke-width:1\"/>"
+ "</svg>"
);
var reader = new SvgReader(source);
IEnumerable <Polygon> lp = reader.ExtractPolygons();
Assert.AreEqual("fill:#bcdaa0", lp.First().Color);
}
public void XmlWithTwoNestedElementsHasTwoPolygons()
{
var reader = new SvgReader(System.Xml.Linq.XElement.Parse(
"<svg>"
+ "<polygon\n points=\"1,2 3,4 5,6 \"/>"
+ "<group>"
+ "<polygon\n points=\"3,4 5,6 7,8\"/>"
+ "</group>"
+ "</svg>"
));
IEnumerable <Polygon> lp = reader.ExtractPolygons();
Assert.AreEqual(2, lp.Count());
}
protected override void OnElementChanged(ElementChangedEventArgs<Image> e)
{
base.OnElementChanged(e);
if (_formsControl != null)
{
var svgStream = _formsControl.SvgAssembly.GetManifestResourceStream(_formsControl.SvgPath);
if (svgStream == null)
{
throw new Exception(string.Format("Error retrieving {0} make sure Build Action is Embedded Resource",
_formsControl.SvgPath));
}
var r = new SvgReader(new StreamReader(svgStream), new StylesParser(new ValuesParser()), new ValuesParser());
var graphics = r.Graphic;
var width = _formsControl.WidthRequest <= 0 ? 100 : _formsControl.WidthRequest;
var height = _formsControl.HeightRequest <= 0 ? 100 : _formsControl.HeightRequest;
var scale = 1.0;
if (height >= width)
{
scale = height/graphics.Size.Height;
}
else
{
scale = width/graphics.Size.Width;
}
var scaleFactor = UIScreen.MainScreen.Scale;
var canvas = new ApplePlatform().CreateImageCanvas(graphics.Size, scale*scaleFactor);
graphics.Draw(canvas);
var image = canvas.GetImage();
var uiImage = image.GetUIImage();
Control.Image = uiImage;
}
}
public static async Task<Bitmap> GetBitmapAsync (SvgImage svgImage, int width, int height)
{
Bitmap result = null;
Stream svgStream = await SvgService.GetSvgStreamAsync (svgImage).ConfigureAwait (false);
await Task.Run(() =>
{
var svgReader = new SvgReader(new StreamReader(svgStream), new StylesParser(new ValuesParser()), new ValuesParser());
var graphics = svgReader.Graphic;
var newWidth = svgImage.WidthRequest == 0 ? 100 : svgImage.WidthRequest;
var newHeight = svgImage.HeightRequest == 0 ? 100 : svgImage.HeightRequest;
var scale = 1.0;
if (height >= width)
{
scale = height / graphics.Size.Height;
}
else
{
scale = width / graphics.Size.Width;
}
var canvas = new AndroidPlatform().CreateImageCanvas(graphics.Size, scale);
graphics.Draw(canvas);
var image = (BitmapImage)canvas.GetImage();
result = image.Bitmap;
//result = SvgFactory.GetBitmap(svgStream, width, height);
});
return result;
}
void ParseSVG()
{
Task.Run(() => {
string svg = null;
CoreGraphics.CGRect previewSize = CoreGraphics.CGRect.Empty;
string error = null;
this.InvokeOnMainThread (() => {
Prev.Drawables = null;
previewSize = Prev.Bounds;
svg = Code;
});
try {
var reader = new SvgReader(new System.IO.StringReader(svg));
if (reader.Graphic != null)
{
if (reader.Graphic.Size.Height == 0 || reader.Graphic.Size.Width == 0)
reader.Graphic.Size = new Size(previewSize.Width, previewSize.Height);
Prev.Drawables = new IDrawable[] { reader.Graphic };
}
} catch (Exception ex) {
error = ex.Message;
}
this.BeginInvokeOnMainThread(() => {
if (!string.IsNullOrEmpty(error))
{
Errors.Value = error;
Errors.TextColor = NSColor.Red;
} else {
Errors.Value = "";
}
Prev.SetNeedsDisplayInRect (previewSize);
});
});
}
public static Graphic LoadSvg(TextReader reader)
{
var valuesParser = new ValuesParser();
var svgr = new SvgReader(reader, new StylesParser(valuesParser),valuesParser);
return svgr.Graphic;
}
