39 строки
1.5 KiB
C#
39 строки
1.5 KiB
C#
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using System;
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namespace Xamarin.Forms
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{
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[TypeConverter(typeof(LayoutOptionsConverter))]
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public struct LayoutOptions
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{
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int _flags;
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public static readonly LayoutOptions Start = new LayoutOptions(LayoutAlignment.Start, false);
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public static readonly LayoutOptions Center = new LayoutOptions(LayoutAlignment.Center, false);
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public static readonly LayoutOptions End = new LayoutOptions(LayoutAlignment.End, false);
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public static readonly LayoutOptions Fill = new LayoutOptions(LayoutAlignment.Fill, false);
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public static readonly LayoutOptions StartAndExpand = new LayoutOptions(LayoutAlignment.Start, true);
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public static readonly LayoutOptions CenterAndExpand = new LayoutOptions(LayoutAlignment.Center, true);
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public static readonly LayoutOptions EndAndExpand = new LayoutOptions(LayoutAlignment.End, true);
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public static readonly LayoutOptions FillAndExpand = new LayoutOptions(LayoutAlignment.Fill, true);
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public LayoutOptions(LayoutAlignment alignment, bool expands)
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{
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var a = (int)alignment;
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if (a < 0 || a > 3)
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throw new ArgumentOutOfRangeException();
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_flags = (int)alignment | (expands ? (int)LayoutExpandFlag.Expand : 0);
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}
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public LayoutAlignment Alignment
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{
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get { return (LayoutAlignment)(_flags & 3); }
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set { _flags = (_flags & ~3) | (int)value; }
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}
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public bool Expands
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{
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get { return (_flags & (int)LayoutExpandFlag.Expand) != 0; }
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set { _flags = (_flags & 3) | (value ? (int)LayoutExpandFlag.Expand : 0); }
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}
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}
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}
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