/*
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* Copyright 2012 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "ZXQRCodeMode.h"
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#import "ZXQRCodeVersion.h"
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@interface ZXQRCodeMode ()
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@property (nonatomic, strong, readonly) NSArray *characterCountBitsForVersions;
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@end
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@implementation ZXQRCodeMode
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- (id)initWithCharacterCountBitsForVersions:(NSArray *)characterCountBitsForVersions bits:(int)bits name:(NSString *)name {
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if (self = [super init]) {
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_characterCountBitsForVersions = characterCountBitsForVersions;
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_bits = bits;
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_name = name;
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}
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return self;
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}
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+ (ZXQRCodeMode *)forBits:(int)bits {
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switch (bits) {
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case 0x0:
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return [ZXQRCodeMode terminatorMode];
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case 0x1:
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return [ZXQRCodeMode numericMode];
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case 0x2:
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return [ZXQRCodeMode alphanumericMode];
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case 0x3:
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return [ZXQRCodeMode structuredAppendMode];
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case 0x4:
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return [ZXQRCodeMode byteMode];
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case 0x5:
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return [ZXQRCodeMode fnc1FirstPositionMode];
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case 0x7:
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return [ZXQRCodeMode eciMode];
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case 0x8:
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return [ZXQRCodeMode kanjiMode];
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case 0x9:
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return [ZXQRCodeMode fnc1SecondPositionMode];
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case 0xD:
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return [ZXQRCodeMode hanziMode];
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default:
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return nil;
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}
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}
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- (int)characterCountBits:(ZXQRCodeVersion *)version {
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int number = version.versionNumber;
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int offset;
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if (number <= 9) {
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offset = 0;
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} else if (number <= 26) {
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offset = 1;
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} else {
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offset = 2;
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}
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return [self.characterCountBitsForVersions[offset] intValue];
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}
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- (NSString *)description {
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return self.name;
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}
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+ (ZXQRCodeMode *)terminatorMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@0, @0, @0] bits:0x00 name:@"TERMINATOR"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)numericMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@10, @12, @14] bits:0x01 name:@"NUMERIC"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)alphanumericMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@9, @11, @13] bits:0x02 name:@"ALPHANUMERIC"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)structuredAppendMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@0, @0, @0] bits:0x03 name:@"STRUCTURED_APPEND"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)byteMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@8, @16, @16] bits:0x04 name:@"BYTE"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)eciMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@0, @0, @0] bits:0x07 name:@"ECI"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)kanjiMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@8, @10, @12] bits:0x08 name:@"KANJI"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)fnc1FirstPositionMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@0, @0, @0] bits:0x05 name:@"FNC1_FIRST_POSITION"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)fnc1SecondPositionMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@0, @0, @0] bits:0x09 name:@"FNC1_SECOND_POSITION"];
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});
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return thisMode;
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}
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+ (ZXQRCodeMode *)hanziMode {
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static ZXQRCodeMode *thisMode = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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thisMode = [[ZXQRCodeMode alloc] initWithCharacterCountBitsForVersions:@[@8, @10, @12] bits:0x0D name:@"HANZI"];
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});
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return thisMode;
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}
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@end
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