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Issue 797 user patch for code c support

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1739 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2011-04-11 17:20:38 +00:00
parent cad4d1d42e
commit c24fefe747
1 changed files with 53 additions and 14 deletions
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67
core/src/com/google/zxing/oned/Code128Writer.java
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@ -45,23 +45,62 @@ public final class Code128Writer extends UPCEANWriter {
throw new IllegalArgumentException(
"Requested contents should be less than 80 digits long, but got " + length);
}
int codeWidth = 11 + 11 + 13; //start plus check plus stop character
//get total code width for this barcode
//Determine which code we should use (C or B)
boolean useCodeC = true;
for (int i = 0; i < length; i++) {
int[] patterns = Code128Reader.CODE_PATTERNS[contents.charAt(i) - ' '];
for (int j = 0; j < patterns.length; j++) {
codeWidth += patterns[j];
char c = contents.charAt(i);
if (c < '0' || c > '9') {
useCodeC = false;
break;
}
}
byte[] result = new byte[codeWidth];
int pos = appendPattern(result, 0, Code128Reader.CODE_PATTERNS[104], 1);
int check = 104;
//append next character to bytematrix
for(int i = 0; i < length; i++) {
check += (contents.charAt(i) - ' ') * (i + 1);
pos += appendPattern(result, pos, Code128Reader.CODE_PATTERNS[contents.charAt(i) - ' '],1);
int codeWidth = 11 + 11 + 13; //start plus check plus stop character
byte[] result;
int pos;
int check;
if (useCodeC) {
//Optionnaly add "0" to have pairs
if (length % 2 != 0) {
contents = '0' + contents;
length++;
}
//get total code width for this barcode
for (int i = 0; i < length; i += 2){
int[] patterns = Code128Reader.CODE_PATTERNS[Integer.parseInt(contents.substring(i, i + 2))];
for (int j = 0; j < patterns.length; j++) {
codeWidth += patterns[j];
}
}
result = new byte[codeWidth];
pos = appendPattern(result, 0, Code128Reader.CODE_PATTERNS[105], 1);
check = 105;
//append next character to bytematrix
for (int i = 0; i < length; i += 2) {
int pair = Integer.parseInt(contents.substring(i, i + 2));
check += pair * (i / 2 + 1);
pos += appendPattern(result, pos, Code128Reader.CODE_PATTERNS[pair],1);
}
} else {
//get total code width for this barcode
for (int i = 0; i < length; i++) {
int[] patterns = Code128Reader.CODE_PATTERNS[contents.charAt(i) - ' '];
for (int j = 0; j < patterns.length; j++) {
codeWidth += patterns[j];
}
}
result = new byte[codeWidth];
pos = appendPattern(result, 0, Code128Reader.CODE_PATTERNS[104], 1);
check = 104;
//append next character to bytematrix
for (int i = 0; i < length; i++) {
check += (contents.charAt(i) - ' ') * (i + 1);
pos += appendPattern(result, pos, Code128Reader.CODE_PATTERNS[contents.charAt(i) - ' '],1);
}
}
//compute checksum and append it along with end character and quiet space
check %= 103;
pos += appendPattern(result,pos,Code128Reader.CODE_PATTERNS[check],1);
@ -70,4 +109,4 @@ public final class Code128Writer extends UPCEANWriter {
return result;
}
}
}