添加项目文件。

zxing.core/xx/datamatrix/encoder/X12Encoder.cs

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2006-2007 Jeremias Maerki.
+ *
+ * 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.Text;
+
+namespace ZXing.Datamatrix.Encoder
+{
+   internal sealed class X12Encoder : C40Encoder
+   {
+      public override int EncodingMode
+      {
+         get { return Encodation.X12; }
+      }
+
+      public override void encode(EncoderContext context)
+      {
+         //step C
+         var buffer = new StringBuilder();
+         int currentMode = EncodingMode;
+         while (context.HasMoreCharacters)
+         {
+            char c = context.CurrentChar;
+            context.Pos++;
+
+            encodeChar(c, buffer);
+
+            int count = buffer.Length;
+            if ((count%3) == 0)
+            {
+               writeNextTriplet(context, buffer);
+
+               int newMode = HighLevelEncoder.lookAheadTest(context.Message, context.Pos, currentMode);
+               if (newMode != currentMode)
+               {
+                  context.signalEncoderChange(newMode);
+                  break;
+               }
+            }
+         }
+         handleEOD(context, buffer);
+      }
+
+      protected override int encodeChar(char c, StringBuilder sb)
+      {
+         if (c == '\r')
+         {
+            sb.Append('\u0000');
+         }
+         else if (c == '*')
+         {
+            sb.Append('\u0001');
+         }
+         else if (c == '>')
+         {
+            sb.Append('\u0002');
+         }
+         else if (c == ' ')
+         {
+            sb.Append('\u0003');
+         }
+         else if (c >= '0' && c <= '9')
+         {
+            sb.Append((char) (c - 48 + 4));
+         }
+         else if (c >= 'A' && c <= 'Z')
+         {
+            sb.Append((char) (c - 65 + 14));
+         }
+         else
+         {
+            HighLevelEncoder.illegalCharacter(c);
+         }
+         return 1;
+      }
+
+      protected override void handleEOD(EncoderContext context, StringBuilder buffer)
+      {
+         context.updateSymbolInfo();
+         int available = context.SymbolInfo.dataCapacity - context.CodewordCount;
+         int count = buffer.Length;
+         context.Pos -= count;
+         if (context.RemainingCharacters > 1 || available > 1 ||
+             context.RemainingCharacters != available)
+            context.writeCodeword(HighLevelEncoder.X12_UNLATCH);
+         if (context.NewEncoding < 0)
+            context.signalEncoderChange(Encodation.ASCII);
+      }
+   }
+}