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- /*
- * Copyright 2014 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.
- */
-
- @class ZXAztecToken, ZXBitArray, ZXByteArray;
-
- /**
- * State represents all information about a sequence necessary to generate the current output.
- * Note that a state is immutable.
- */
- @interface ZXAztecState : NSObject
-
- // The current mode of the encoding (or the mode to which we'll return if
- // we're in Binary Shift mode.
- @property (nonatomic, assign, readonly) int mode;
-
- // The list of tokens that we output. If we are in Binary Shift mode, this
- // token list does *not* yet included the token for those bytes
- @property (nonatomic, strong, readonly) ZXAztecToken *token;
-
- // If non-zero, the number of most recent bytes that should be output
- // in Binary Shift mode.
- @property (nonatomic, assign, readonly) int binaryShiftByteCount;
-
- // The total number of bits generated (including Binary Shift).
- @property (nonatomic, assign, readonly) int bitCount;
-
- - (id)initWithToken:(ZXAztecToken *)token mode:(int)mode binaryBytes:(int)binaryBytes bitCount:(int)bitCount;
- + (ZXAztecState *)initialState;
- - (ZXAztecState *)latchAndAppend:(int)mode value:(int)value;
- - (ZXAztecState *)shiftAndAppend:(int)mode value:(int)value;
- - (ZXAztecState *)addBinaryShiftChar:(int)index;
- - (ZXAztecState *)endBinaryShift:(int)index;
- - (BOOL)isBetterThanOrEqualTo:(ZXAztecState *)other;
- - (ZXBitArray *)toBitArray:(ZXByteArray *)text;
-
- @end
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