maui-linux/Xamarin.Forms.Platform.WinRT/Extensions.cs

46 строки
1.4 KiB
C#
Исходник Обычный вид История

2016-03-22 23:02:25 +03:00
using System;
using System.Runtime.CompilerServices;
using Windows.Foundation;
using Windows.UI;
using Windows.UI.Xaml;
#if WINDOWS_UWP
namespace Xamarin.Forms.Platform.UWP
#else
namespace Xamarin.Forms.Platform.WinRT
#endif
{
internal static class Extensions
{
public static ConfiguredTaskAwaitable<T> DontSync<T>(this IAsyncOperation<T> self)
{
return self.AsTask().ConfigureAwait(false);
}
public static ConfiguredTaskAwaitable DontSync(this IAsyncAction self)
{
return self.AsTask().ConfigureAwait(false);
}
public static Windows.UI.Color GetIdealForegroundForBackgroundColor(this Windows.UI.Color backgroundColor)
{
var nThreshold = 105;
int bgLuminance = Convert.ToInt32(backgroundColor.R * 0.2 + backgroundColor.G * 0.7 + backgroundColor.B * 0.1);
Windows.UI.Color foregroundColor = 255 - bgLuminance < nThreshold ? Colors.Black : Colors.White;
return foregroundColor;
}
public static void SetBinding(this FrameworkElement self, DependencyProperty property, string path)
{
self.SetBinding(property, new Windows.UI.Xaml.Data.Binding { Path = new PropertyPath(path) });
}
public static void SetBinding(this FrameworkElement self, DependencyProperty property, string path, Windows.UI.Xaml.Data.IValueConverter converter)
{
self.SetBinding(property, new Windows.UI.Xaml.Data.Binding { Path = new PropertyPath(path), Converter = converter });
}
}
}