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/*
* 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.
*/
package com.google.zxing;
/**
* Encapsulates a type of hint that a caller may pass to a barcode reader to help it
* more quickly or accurately decode it. It is up to implementations to decide what,
* if anything, to do with the information that is supplied.
*
* @author Sean Owen
* @author dswitkin@google.com (Daniel Switkin)
* @see Reader#decode(BinaryBitmap,java.util.Hashtable)
*/
public final class DecodeHintType {
// No, we can't use an enum here. J2ME doesn't support it.
/**
* Unspecified, application-specific hint. Maps to an unspecified {@link Object}.
*/
public static final DecodeHintType OTHER = new DecodeHintType();
/**
* Image is a pure monochrome image of a barcode. Doesn't matter what it maps to;
* use {@link Boolean#TRUE}.
*/
public static final DecodeHintType PURE_BARCODE = new DecodeHintType();
/**
* Image is known to be of one of a few possible formats.
* Maps to a {@link java.util.Vector} of {@link BarcodeFormat}s.
*/
public static final DecodeHintType POSSIBLE_FORMATS = new DecodeHintType();
/**
* Spend more time to try to find a barcode; optimize for accuracy, not speed.
* Doesn't matter what it maps to; use {@link Boolean#TRUE}.
*/
public static final DecodeHintType TRY_HARDER = new DecodeHintType();
/**
* Specifies what character encoding to use when decoding, where applicable (type String)
*/
public static final DecodeHintType CHARACTER_SET = new DecodeHintType();
/**
* Allowed lengths of encoded data -- reject anything else. Maps to an int[].
*/
public static final DecodeHintType ALLOWED_LENGTHS = new DecodeHintType();
/**
* Assume Code 39 codes employ a check digit. Maps to {@link Boolean}.
*/
public static final DecodeHintType ASSUME_CODE_39_CHECK_DIGIT = new DecodeHintType();
/**
* The caller needs to be notified via callback when a possible {@link ResultPoint}
* is found. Maps to a {@link ResultPointCallback}.
*/
public static final DecodeHintType NEED_RESULT_POINT_CALLBACK = new DecodeHintType();
private DecodeHintType() {
}
}
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