Monday, January 31, 2011

.NET/C# 5 wish list

  1. Merge WPF and Silverlight. .NET Framework and .NET Compact Framework. It would be better to have just different profiles of framework like (.NET client profile) instead of different frameworks.
  2. Non-nullable references
    string! x = "xxx";
  3. Discriminated unions:
    union MyUnion: Enum
{
    case Enum.Red: RedClass;
    case Enum.Green: GreenClass;
    ...
}
  4. INumeric interface for standard numeric types.
    struct UInt32: INumeric<UInt32>
{
...
}
  5. Fixed size arrays
    byte[10] x;
  6. Operator extensions (syntax sugar):
    public static class Extensions
{
    public static T operator+ <T>(T a, T b) where T: INumeric<T>
    ...
}
  7. Polymorphic up cast:
    class A: B { ... }
...
new A() up B
    Update: No needs any more. Solution:
    public static class Extension
{
    public static T UpCast<T>(T derived)
    {
        return derived;
    }
}
    Example:
    new B().UpCast<A>()
  8. Force use 'using' keyword for some classes.
    using class My: IDisposable
{
    ....
}

...

// Ok.
using(var my = new My())
{
}

// Compilation error.
{
 var my = new My();
}

// Ok.
return new My();
  9. Units of measurements. As in F# http://msdn.microsoft.com/en-us/library/dd233243.aspx.
  10. Named code blocks.
    code Block
{
  foreach(var x in M)
  {
    foreach(var y in x)
    {
      if(y)
        break Block; 
    }
  }
}
  11. A reference to an anonymous delegate inside the delegate.
    Control.Selected += (s, e) =>
{
    ...
    Control.Selected -= this function;
}
Posted by at 2 comments:
Labels: ,

Tuesday, December 28, 2010

.NET Frameworks

Class Library / Windows Metro style

  • Runtime: ?
  • Framework: .NETCore
  • Version: 4.5

Class Library / .NET Framework 4 Client

  • Runtime: 4.0.30319
  • Framework: .NETFramework
  • Version: 4.0
  • Profile: Client

Windows Game Library / .NET Framework 4 Client

  • Runtime: 4.0.30319
  • Framework: .NETFramework
  • Version: 4.0
  • Profile: Client

Xbox 360 Game Library

  • Runtime: 2.0.50727

Silverlight Class Library / Silverlight 4

  • Runtime: 2.0.50727
  • Framework: Silverlight
  • Version: 4.0

Silverlight for Windows Phone 7.1

  • Runtime: ?
  • Framework: Silverlight
  • Version: 4.0
  • Profile: WindowsPhone71

Silverlight for Windows Phone 7.0

  • Runtime: 2.0.50727
  • Framework: Silverlight
  • Version: 4.0
  • Profile: WindowsPhone

Silverlight Class Library / Silverlight 3

  • Runtime: 2.0.50727

Windows Phone Game Library

  • Runtime: 2.0.50727
Posted by at No comments:
Labels: , , ,

Friday, December 10, 2010

CSS gradient on C#

CSS gradient on C# using CityLizard Framework. Works in IE 5.5-8.0, FireFox 3.6, Chrome 8.0, Safari 5.0 and Opera 10.
namespace Css
{
    using S = www_w3_org._2000.svg.X;
    using D = System.Drawing;

    class Gradient
    {
        class Svg : S
        {
            public T.svg Gradient(string start, string end)
            {
                return
                    svg_(width: "100%", height: "100%")
                        [defs
                            [linearGradient_(
                                id: "grad",
                                x1: "0",
                                y1: "0",
                                x2: "0",
                                y2: "100%")
                                [stop_(offset: "0", stop_color: start)]
                                [stop_(offset: "1", stop_color: end)]
                            ]
                        ]
                        [rect_(
                            width: "100%",
                            height: "100%",
                            x: "0",
                            y: "0",
                            style: "fill:url(#grad)")
                        ];
            }
        }

        static string X2(byte x)
        {
            return x.ToString("X2");
        }

        static string ToString(D.Color c)
        {
            return "#" + X2(c.R) + X2(c.G) + X2(c.B);
        }

        static byte Avg(byte a, byte b)
        {
            return (byte)((a + b) / 2);
        }

        static D.Color Avg(D.Color a, D.Color b)
        {
            return D.Color.FromArgb(
                Avg(a.R, b.R), Avg(a.G, b.G), Avg(a.B, b.B));
        }

        public static string Y(D.Color Start, D.Color End)
        {
            var s = ToString(Start);
            var e = ToString(End);
            var svgB = new Svg().Gradient(s, e).ToString();
            var svg = "";
            foreach (var c in svgB)
            {
                var x = (int)c;
                if (x <= 0x40)
                {
                    svg += "%" + x.ToString("X2");
                }
                else
                {
                    svg += c;
                }
            }
            // Next browsers to test: Opera 11 (hopefully it has CSS gradient), 
            // IE 9.
            return
                // for other browsers.
                "background: " + ToString(Avg(Start, End)) + ";" +

                // Opera 10. It also works for Chrome and Safari.
                "background: url(\"data:image/svg+xml," + svg + "\");" +

                // IE 5.5-8.0.
                "filter: progid:DXImageTransform.Microsoft.gradient(" +
                "startColorstr='" +
                s +
                "', endColorstr='" +
                e +
                "');" +

                // webkit browsers (Chrome, Safari). It is not required 
                // because SVG gradient for Opera works fine for these 
                // browsers.
                /*
                "background: -webkit-gradient(" +
                "linear, left top, left bottom, from(" + 
                s + 
                "), to(" + 
                e + 
                "));" +
                */

                // FireFox 3.6+
                "background: -moz-linear-gradient(top,  " + s + ", " + e + ");";
        }
    }
}
Posted by at No comments:
Labels: , , , , , , , ,

Monday, December 6, 2010

List of free tools

Tools

.

Browsers

Others

Posted by at No comments:
Labels: , , ,
Subscribe to: Posts (Atom)