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More small improvements to SKIP_N_BARCODES -- now remembers value across invocations of doDecode()

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git-svn-id: https://zxing.googlecode.com/svn/trunk@305 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2008-03-20 17:08:07 +00:00
parent 93054c2213
commit eec9cd339f
1 changed files with 9 additions and 10 deletions
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19
core/src/com/google/zxing/oned/AbstractOneDReader.java
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@ -69,14 +69,6 @@ public abstract class AbstractOneDReader implements OneDReader {
BitArray row = new BitArray(width);
int barcodesToSkip = 0;
if (hints != null) {
Integer number = (Integer) hints.get(DecodeHintType.SKIP_N_BARCODES);
if (number != null) {
barcodesToSkip = number.intValue();
}
}
// We're going to examine rows from the middle outward, searching alternately above and below the middle,
// and farther out each time. rowStep is the number of rows between each successive attempt above and below
// the middle. So we'd scan row middle, then middle - rowStep, then middle + rowStep,
@ -95,6 +87,7 @@ public abstract class AbstractOneDReader implements OneDReader {
}
Hashtable lastResults = null;
boolean skippingSomeBarcodes = hints != null && hints.containsKey(DecodeHintType.SKIP_N_BARCODES);
for (int x = 0; x < maxLines; x++) {
@ -136,8 +129,14 @@ public abstract class AbstractOneDReader implements OneDReader {
continue;
}
if (barcodesToSkip > 0) { // See if we should skip and keep looking
barcodesToSkip--;
if (skippingSomeBarcodes) { // See if we should skip and keep looking
int oldValue = ((Integer) hints.get(DecodeHintType.SKIP_N_BARCODES)).intValue();
if (oldValue > 1) {
hints.put(DecodeHintType.SKIP_N_BARCODES, new Integer(oldValue - 1));
} else {
hints.remove(DecodeHintType.SKIP_N_BARCODES);
skippingSomeBarcodes = false;
}
if (lastResults == null) {
lastResults = new Hashtable(3);
}