mirror of
https://gitee.com/akwkevin/aistudio.-wpf.-diagram
synced 2026-04-06 01:06:37 +08:00
218 lines
8.7 KiB
C#
218 lines
8.7 KiB
C#
/*
|
|
* Copyright 2011 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;
|
|
using System.Text;
|
|
using ZXing.QrCode.Internal;
|
|
using ZXing.Common;
|
|
|
|
namespace ZXing.Maxicode.Internal
|
|
{
|
|
/// <summary>
|
|
/// <p>MaxiCodes can encode text or structured information as bits in one of several modes,
|
|
/// with multiple character sets in one code. This class decodes the bits back into text.</p>
|
|
///
|
|
/// <author>mike32767</author>
|
|
/// <author>Manuel Kasten</author>
|
|
/// </summary>
|
|
internal static class DecodedBitStreamParser
|
|
{
|
|
private const char SHIFTA = '\uFFF0';
|
|
private const char SHIFTB = '\uFFF1';
|
|
private const char SHIFTC = '\uFFF2';
|
|
private const char SHIFTD = '\uFFF3';
|
|
private const char SHIFTE = '\uFFF4';
|
|
private const char TWOSHIFTA = '\uFFF5';
|
|
private const char THREESHIFTA = '\uFFF6';
|
|
private const char LATCHA = '\uFFF7';
|
|
private const char LATCHB = '\uFFF8';
|
|
private const char LOCK = '\uFFF9';
|
|
private const char ECI = '\uFFFA';
|
|
private const char NS = '\uFFFB';
|
|
private const char PAD = '\uFFFC';
|
|
private const char FS = '\u001C';
|
|
private const char GS = '\u001D';
|
|
private const char RS = '\u001E';
|
|
private const string NINE_DIGITS = "000000000";
|
|
private const string THREE_DIGITS = "000";
|
|
|
|
private static String[] SETS = {
|
|
"\nABCDEFGHIJKLMNOPQRSTUVWXYZ"+ECI+FS+GS+RS+NS+' '+PAD+"\"#$%&'()*+,-./0123456789:"+SHIFTB+SHIFTC+SHIFTD+SHIFTE+LATCHB,
|
|
"`abcdefghijklmnopqrstuvwxyz"+ECI+FS+GS+RS+NS+'{'+PAD+"}~\u007F;<=>?[\\]^_ ,./:@!|"+PAD+TWOSHIFTA+THREESHIFTA+PAD+SHIFTA+SHIFTC+SHIFTD+SHIFTE+LATCHA,
|
|
"\u00C0\u00C1\u00C2\u00C3\u00C4\u00C5\u00C6\u00C7\u00C8\u00C9\u00CA\u00CB\u00CC\u00CD\u00CE\u00CF\u00D0\u00D1\u00D2\u00D3\u00D4\u00D5\u00D6\u00D7\u00D8\u00D9\u00DA"+ECI+FS+GS+RS+"\u00DB\u00DC\u00DD\u00DE\u00DF\u00AA\u00AC\u00B1\u00B2\u00B3\u00B5\u00B9\u00BA\u00BC\u00BD\u00BE\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089"+LATCHA+' '+LOCK+SHIFTD+SHIFTE+LATCHB,
|
|
"\u00E0\u00E1\u00E2\u00E3\u00E4\u00E5\u00E6\u00E7\u00E8\u00E9\u00EA\u00EB\u00EC\u00ED\u00EE\u00EF\u00F0\u00F1\u00F2\u00F3\u00F4\u00F5\u00F6\u00F7\u00F8\u00F9\u00FA"+ECI+FS+GS+RS+NS+"\u00FB\u00FC\u00FD\u00FE\u00FF\u00A1\u00A8\u00AB\u00AF\u00B0\u00B4\u00B7\u00B8\u00BB\u00BF\u008A\u008B\u008C\u008D\u008E\u008F\u0090\u0091\u0092\u0093\u0094"+LATCHA+' '+SHIFTC+LOCK+SHIFTE+LATCHB,
|
|
"\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\n\u000B\u000C\r\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A"+ECI+PAD+PAD+'\u001B'+NS+FS+GS+RS+"\u001F\u009F\u00A0\u00A2\u00A3\u00A4\u00A5\u00A6\u00A7\u00A9\u00AD\u00AE\u00B6\u0095\u0096\u0097\u0098\u0099\u009A\u009B\u009C\u009D\u009E"+LATCHA+' '+SHIFTC+SHIFTD+LOCK+LATCHB,
|
|
"\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\n\u000B\u000C\r\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F\u0020\u0021\"\u0023\u0024\u0025\u0026\u0027\u0028\u0029\u002A\u002B\u002C\u002D\u002E\u002F\u0030\u0031\u0032\u0033\u0034\u0035\u0036\u0037\u0038\u0039\u003A\u003B\u003C\u003D\u003E\u003F"
|
|
};
|
|
|
|
internal static DecoderResult decode(byte[] bytes, int mode)
|
|
{
|
|
StringBuilder result = new StringBuilder(144);
|
|
switch (mode)
|
|
{
|
|
case 2:
|
|
case 3:
|
|
String postcode;
|
|
if (mode == 2)
|
|
{
|
|
int pc = getPostCode2(bytes);
|
|
var df = "0000000000".Substring(0, getPostCode2Length(bytes));
|
|
postcode = pc.ToString(df);
|
|
}
|
|
else
|
|
{
|
|
postcode = getPostCode3(bytes);
|
|
}
|
|
String country = getCountry(bytes).ToString(THREE_DIGITS);
|
|
String service = getServiceClass(bytes).ToString(THREE_DIGITS);
|
|
result.Append(getMessage(bytes, 10, 84));
|
|
if (result.ToString().StartsWith("[)>" + RS + "01" + GS))
|
|
{
|
|
result.Insert(9, postcode + GS + country + GS + service + GS);
|
|
}
|
|
else
|
|
{
|
|
result.Insert(0, postcode + GS + country + GS + service + GS);
|
|
}
|
|
break;
|
|
case 4:
|
|
result.Append(getMessage(bytes, 1, 93));
|
|
break;
|
|
case 5:
|
|
result.Append(getMessage(bytes, 1, 77));
|
|
break;
|
|
}
|
|
|
|
return new DecoderResult(bytes, result.ToString(), null, mode.ToString());
|
|
}
|
|
|
|
private static int getBit(int bit, byte[] bytes)
|
|
{
|
|
bit--;
|
|
return (bytes[bit / 6] & (1 << (5 - (bit % 6)))) == 0 ? 0 : 1;
|
|
}
|
|
|
|
private static int getInt(byte[] bytes, byte[] x)
|
|
{
|
|
if (x.Length == 0)
|
|
throw new ArgumentException("x");
|
|
|
|
int val = 0;
|
|
for (int i = 0; i < x.Length; i++)
|
|
{
|
|
val += getBit(x[i], bytes) << (x.Length - i - 1);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
private static int getCountry(byte[] bytes)
|
|
{
|
|
return getInt(bytes, new byte[] { 53, 54, 43, 44, 45, 46, 47, 48, 37, 38 });
|
|
}
|
|
|
|
private static int getServiceClass(byte[] bytes)
|
|
{
|
|
return getInt(bytes, new byte[] { 55, 56, 57, 58, 59, 60, 49, 50, 51, 52 });
|
|
}
|
|
|
|
private static int getPostCode2Length(byte[] bytes)
|
|
{
|
|
return getInt(bytes, new byte[] { 39, 40, 41, 42, 31, 32 });
|
|
}
|
|
|
|
private static int getPostCode2(byte[] bytes)
|
|
{
|
|
return getInt(bytes, new byte[] {33, 34, 35, 36, 25, 26, 27, 28, 29, 30, 19,
|
|
20, 21, 22, 23, 24, 13, 14, 15, 16, 17, 18, 7, 8, 9, 10, 11, 12, 1, 2});
|
|
}
|
|
|
|
private static String getPostCode3(byte[] bytes)
|
|
{
|
|
return new String(
|
|
new char[]
|
|
{
|
|
SETS[0][getInt(bytes, new byte[] {39, 40, 41, 42, 31, 32})],
|
|
SETS[0][getInt(bytes, new byte[] {33, 34, 35, 36, 25, 26})],
|
|
SETS[0][getInt(bytes, new byte[] {27, 28, 29, 30, 19, 20})],
|
|
SETS[0][getInt(bytes, new byte[] {21, 22, 23, 24, 13, 14})],
|
|
SETS[0][getInt(bytes, new byte[] {15, 16, 17, 18, 7, 8})],
|
|
SETS[0][getInt(bytes, new byte[] {9, 10, 11, 12, 1, 2})],
|
|
}
|
|
);
|
|
}
|
|
|
|
private static String getMessage(byte[] bytes, int start, int len)
|
|
{
|
|
StringBuilder sb = new StringBuilder();
|
|
int shift = -1;
|
|
int set = 0;
|
|
int lastset = 0;
|
|
for (int i = start; i < start + len; i++)
|
|
{
|
|
char c = SETS[set][bytes[i]];
|
|
switch (c)
|
|
{
|
|
case LATCHA:
|
|
set = 0;
|
|
shift = -1;
|
|
break;
|
|
case LATCHB:
|
|
set = 1;
|
|
shift = -1;
|
|
break;
|
|
case SHIFTA:
|
|
case SHIFTB:
|
|
case SHIFTC:
|
|
case SHIFTD:
|
|
case SHIFTE:
|
|
lastset = set;
|
|
set = c - SHIFTA;
|
|
shift = 1;
|
|
break;
|
|
case TWOSHIFTA:
|
|
lastset = set;
|
|
set = 0;
|
|
shift = 2;
|
|
break;
|
|
case THREESHIFTA:
|
|
lastset = set;
|
|
set = 0;
|
|
shift = 3;
|
|
break;
|
|
case NS:
|
|
int nsval = (bytes[++i] << 24) + (bytes[++i] << 18) + (bytes[++i] << 12) + (bytes[++i] << 6) + bytes[++i];
|
|
sb.Append(nsval.ToString(NINE_DIGITS));
|
|
break;
|
|
case LOCK:
|
|
shift = -1;
|
|
break;
|
|
default:
|
|
sb.Append(c);
|
|
break;
|
|
}
|
|
if (shift-- == 0)
|
|
{
|
|
set = lastset;
|
|
}
|
|
}
|
|
while (sb.Length > 0 && sb[sb.Length - 1] == PAD)
|
|
{
|
|
sb.Length = sb.Length - 1;
|
|
}
|
|
return sb.ToString();
|
|
}
|
|
}
|
|
} |
