public static WebGLRenderingContext Create3DContext(CanvasElement canvas)
{
string[] names = new string[]
{
"webgl",
"experimental-webgl",
"webkit-3d",
"moz-webgl"
};
WebGLRenderingContext context = null;
foreach (string name in names)
{
try
{
context = canvas.GetContext(name).As<WebGLRenderingContext>();
}
catch { }
if (context != null)
{
break;
}
}
return context;
}
public CanvasContext(CanvasElement canvas, InputElement input)
: base(canvas.Width, canvas.Height)
{
imageCache = new Dictionary<string, ImageElement>();
this.input = input;
input.Type = InputType.Text;
input.Value = "A";
input.OnInput = (e) =>
{
if(input.Value == "")
{
KeyPressed("Back");
}
KeyPressed(input.Value.Substr(Math.Max(0, input.Value.Length - 1), input.Value.Length));
input.Value = "A";
};
context = canvas.GetContext(CanvasTypes.CanvasContext2DType.CanvasRenderingContext2D);
context.FillStyle = "#000000";
context.LineWidth = 2;
context.TextBaseline = CanvasTypes.CanvasTextBaselineAlign.Middle;
double canvasLeft = context.Canvas.GetBoundingClientRect().Left;
double canvasRight = context.Canvas.GetBoundingClientRect().Left;
context.Canvas.AddEventListener(EventType.Click,
(e) =>
{
Click(e.As<MouseEvent>().ClientX + Document.Body.ScrollLeft - (int)canvasLeft,
e.As<MouseEvent>().ClientY + Document.Body.ScrollTop - (int)canvasRight);
if (ContentView.Active == true)
{
input.Focus();
}
});
Window.OnResize = (e) => ResizeContent();
}
