zxing/csharp/qrcode/decoder/ErrorCorrectionLevel.cs
srowen d4efd44fb0 New C# port from Suraj Supekar
git-svn-id: https://zxing.googlecode.com/svn/trunk@1202 59b500cc-1b3d-0410-9834-0bbf25fbcc57
2010-02-05 19:52:53 +00:00

102 lines
4.1 KiB
C#
Executable file

/*
* Copyright 2007 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
namespace com.google.zxing.qrcode.decoder
{
/// <summary> <p>See ISO 18004:2006, 6.5.1. This enum encapsulates the four error correction levels
/// defined by the QR code standard.</p>
///
/// </summary>
/// <author> Sean Owen
/// </author>
/// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source
/// </author>
public sealed class ErrorCorrectionLevel
{
public int Bits
{
get
{
return bits;
}
}
public System.String Name
{
get
{
return name;
}
}
// No, we can't use an enum here. J2ME doesn't support it.
/// <summary> L = ~7% correction</summary>
//UPGRADE_NOTE: Final was removed from the declaration of 'L '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
public static readonly ErrorCorrectionLevel L = new ErrorCorrectionLevel(0, 0x01, "L");
/// <summary> M = ~15% correction</summary>
//UPGRADE_NOTE: Final was removed from the declaration of 'M '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
public static readonly ErrorCorrectionLevel M = new ErrorCorrectionLevel(1, 0x00, "M");
/// <summary> Q = ~25% correction</summary>
//UPGRADE_NOTE: Final was removed from the declaration of 'Q '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
public static readonly ErrorCorrectionLevel Q = new ErrorCorrectionLevel(2, 0x03, "Q");
/// <summary> H = ~30% correction</summary>
//UPGRADE_NOTE: Final was removed from the declaration of 'H '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
public static readonly ErrorCorrectionLevel H = new ErrorCorrectionLevel(3, 0x02, "H");
//UPGRADE_NOTE: Final was removed from the declaration of 'FOR_BITS '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly ErrorCorrectionLevel[] FOR_BITS = new ErrorCorrectionLevel[]{M, L, H, Q};
//UPGRADE_NOTE: Final was removed from the declaration of 'ordinal '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private int ordinal_Renamed_Field;
//UPGRADE_NOTE: Final was removed from the declaration of 'bits '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private int bits;
//UPGRADE_NOTE: Final was removed from the declaration of 'name '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private System.String name;
private ErrorCorrectionLevel(int ordinal, int bits, System.String name)
{
this.ordinal_Renamed_Field = ordinal;
this.bits = bits;
this.name = name;
}
public int ordinal()
{
return ordinal_Renamed_Field;
}
public override System.String ToString()
{
return name;
}
/// <param name="bits">int containing the two bits encoding a QR Code's error correction level
/// </param>
/// <returns> {@link ErrorCorrectionLevel} representing the encoded error correction level
/// </returns>
public static ErrorCorrectionLevel forBits(int bits)
{
if (bits < 0 || bits >= FOR_BITS.Length)
{
throw new System.ArgumentException();
}
return FOR_BITS[bits];
}
}
}