public WebLayer(WebRenderer renderer, int width, int height, BaseLayout layout)
{
this.renderer = renderer;
this.width = width;
this.height = height;
Layout = layout;
CanvasInformation = CanvasInformation.Create(width, height);
settingsStack = new List <WebContextSettings>();
settingsStack.Add(new WebContextSettings());
}
private CanvasInformation colorizeImage(HTMLImageElement img, Color color)
{
var canvas = CanvasInformation.Create(img.Width, img.Height);
canvas.Context.DrawImage(img, 0, 0, img.NaturalWidth, img.NaturalHeight, 0, 0, img.Width, img.Height);
var originalPixels = canvas.Context.GetImageData(0, 0, img.Width, img.Height);
var currentPixels = canvas.Context.GetImageData(0, 0, img.Width, img.Height);
var L = originalPixels.Data.Length;
for (var I = 0; I < L; I += 4)
{
currentPixels.Data[I] = (byte)(originalPixels.Data[I] / 255d * color.R % 256);
currentPixels.Data[I + 1] = (byte)(originalPixels.Data[I + 1] / 255d * color.G % 256);
currentPixels.Data[I + 2] = (byte)(originalPixels.Data[I + 2] / 255d * color.B % 256);
currentPixels.Data[I + 3] = (byte)(originalPixels.Data[I + 3] / 255d * color.A % 256);
}
canvas.Context.PutImageData(currentPixels, 0, 0);
return(canvas);
}
public WebImage FlipVersion(DrawingEffects drawingEffects)
{
if (!flipVersions.ContainsKey(drawingEffects))
{
CanvasInformation canvas;
switch (drawingEffects)
{
case DrawingEffects.None:
flipVersions.Add(DrawingEffects.None, this);
break;
case DrawingEffects.FlipHorizontally:
canvas = CanvasInformation.Create(Width, Height);
canvas.Context.Translate(Width, 0);
canvas.Context.Scale(-1, 1);
canvas.Context.DrawImage(Image, 0, 0);
flipVersions.Add(DrawingEffects.FlipHorizontally, new WebImage(canvas.Canvas, Center));
break;
case DrawingEffects.FlipVertically:
canvas = CanvasInformation.Create(Width, Height);
canvas.Context.Translate(0, Height);
canvas.Context.Scale(1, -1);
canvas.Context.DrawImage(Image, 0, 0);
flipVersions.Add(DrawingEffects.FlipVertically, new WebImage(canvas.Canvas, Center));
break;
default:
throw new ArgumentOutOfRangeException("drawingEffects");
}
}
return(flipVersions[drawingEffects]);
}