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-rwxr-xr-xshare/extensions/render_barcode_qrcode.py1081
1 files changed, 1081 insertions, 0 deletions
diff --git a/share/extensions/render_barcode_qrcode.py b/share/extensions/render_barcode_qrcode.py
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+++ b/share/extensions/render_barcode_qrcode.py
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+#!/usr/bin/env python
+# coding=utf-8
+#
+# Copyright (C) 2009 Kazuhiko Arase (http://www.d-project.com/)
+# 2010 Bulia Byak <buliabyak@gmail.com>
+# 2018 Kirill Okhotnikov <kirill.okhotnikov@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA.
+#
+"""
+Provide the QR Code rendering.
+"""
+
+from __future__ import print_function
+
+from itertools import product
+
+import sys
+import inkex
+from inkex import Group, Rectangle, Use, PathElement
+
+
+class QRCode(object):
+ PAD0 = 0xEC
+ PAD1 = 0x11
+
+ def __init__(self, correction):
+ self.typeNumber = 1
+ self.errorCorrectLevel = correction
+ self.qrDataList = []
+ self.modules = []
+ self.moduleCount = 0
+
+ def getTypeNumber(self):
+ return self.typeNumber
+
+ def setTypeNumber(self, typeNumber):
+ self.typeNumber = typeNumber
+
+ def clearData(self):
+ self.qrDataList = []
+
+ def addData(self, data):
+ self.qrDataList.append(QR8BitByte(data))
+
+ def getDataCount(self):
+ return len(self.qrDataList)
+
+ def getData(self, index):
+ return self.qrDataList[index]
+
+ def isDark(self, row, col):
+ return (self.modules[row][col] if self.modules[row][col] is not None
+ else False)
+
+ def getModuleCount(self):
+ return self.moduleCount
+
+ def make(self):
+ self._make(False, self._getBestMaskPattern())
+
+ def _getBestMaskPattern(self):
+ minLostPoint = 0
+ pattern = 0
+ for i in range(8):
+ self._make(True, i)
+ lostPoint = QRUtil.getLostPoint(self)
+ if i == 0 or minLostPoint > lostPoint:
+ minLostPoint = lostPoint
+ pattern = i
+ return pattern
+
+ def _make(self, test, maskPattern):
+
+ self.moduleCount = self.typeNumber * 4 + 17
+ self.modules = [[None] * self.moduleCount
+ for i in range(self.moduleCount)]
+
+ self._setupPositionProbePattern(0, 0)
+ self._setupPositionProbePattern(self.moduleCount - 7, 0)
+ self._setupPositionProbePattern(0, self.moduleCount - 7)
+
+ self._setupPositionAdjustPattern()
+ self._setupTimingPattern()
+
+ self._setupTypeInfo(test, maskPattern)
+
+ if self.typeNumber >= 7:
+ self._setupTypeNumber(test)
+
+ data = QRCode._createData(
+ self.typeNumber,
+ self.errorCorrectLevel,
+ self.qrDataList)
+
+ self._mapData(data, maskPattern)
+
+ def _mapData(self, data, maskPattern):
+
+ rows = list(range(self.moduleCount))
+ cols = [col - 1 if col <= 6 else col
+ for col in range(self.moduleCount - 1, 0, -2)]
+ maskFunc = QRUtil.getMaskFunction(maskPattern)
+
+ byteIndex = 0
+ bitIndex = 7
+
+ for col in cols:
+ rows.reverse()
+ for row in rows:
+ for c in range(2):
+ if self.modules[row][col - c] is None:
+
+ dark = False
+ if byteIndex < len(data):
+ dark = ((data[byteIndex] >> bitIndex) & 1) == 1
+ if maskFunc(row, col - c):
+ dark = not dark
+ self.modules[row][col - c] = dark
+
+ bitIndex -= 1
+ if bitIndex == -1:
+ byteIndex += 1
+ bitIndex = 7
+
+ def _setupPositionAdjustPattern(self):
+ pos = QRUtil.getPatternPosition(self.typeNumber)
+ for row in pos:
+ for col in pos:
+ if self.modules[row][col] is not None:
+ continue
+ for r in range(-2, 3):
+ for c in range(-2, 3):
+ self.modules[row + r][col + c] = (
+ r == -2 or r == 2 or c == -2 or c == 2
+ or (r == 0 and c == 0))
+
+ def _setupPositionProbePattern(self, row, col):
+ for r in range(-1, 8):
+ for c in range(-1, 8):
+ if (row + r <= -1 or self.moduleCount <= row + r
+ or col + c <= -1 or self.moduleCount <= col + c):
+ continue
+ self.modules[row + r][col + c] = (
+ (0 <= r <= 6 and (c == 0 or c == 6))
+ or (0 <= c <= 6 and (r == 0 or r == 6))
+ or (2 <= r <= 4 and 2 <= c <= 4))
+
+ def _setupTimingPattern(self):
+ for r in range(8, self.moduleCount - 8):
+ if self.modules[r][6] is not None:
+ continue
+ self.modules[r][6] = r % 2 == 0
+ for c in range(8, self.moduleCount - 8):
+ if self.modules[6][c] is not None:
+ continue
+ self.modules[6][c] = c % 2 == 0
+
+ def _setupTypeNumber(self, test):
+ bits = QRUtil.getBCHTypeNumber(self.typeNumber)
+ for i in range(18):
+ self.modules[i // 3][i % 3 + self.moduleCount - 8 - 3] = (
+ not test and ((bits >> i) & 1) == 1)
+ for i in range(18):
+ self.modules[i % 3 + self.moduleCount - 8 - 3][i // 3] = (
+ not test and ((bits >> i) & 1) == 1)
+
+ def _setupTypeInfo(self, test, maskPattern):
+
+ data = (self.errorCorrectLevel << 3) | maskPattern
+ bits = QRUtil.getBCHTypeInfo(data)
+
+ # vertical
+ for i in range(15):
+ mod = not test and ((bits >> i) & 1) == 1
+ if i < 6:
+ self.modules[i][8] = mod
+ elif i < 8:
+ self.modules[i + 1][8] = mod
+ else:
+ self.modules[self.moduleCount - 15 + i][8] = mod
+
+ # horizontal
+ for i in range(15):
+ mod = not test and ((bits >> i) & 1) == 1
+ if i < 8:
+ self.modules[8][self.moduleCount - i - 1] = mod
+ elif i < 9:
+ self.modules[8][15 - i - 1 + 1] = mod
+ else:
+ self.modules[8][15 - i - 1] = mod
+
+ # fixed
+ self.modules[self.moduleCount - 8][8] = not test
+
+ @staticmethod
+ def _createData(typeNumber, errorCorrectLevel, dataArray):
+
+ rsBlocks = RSBlock.getRSBlocks(typeNumber, errorCorrectLevel)
+
+ buffer = BitBuffer()
+
+ for data in dataArray:
+ buffer.put(data.getMode(), 4)
+ buffer.put(data.getLength(), data.getLengthInBits(typeNumber))
+ data.write(buffer)
+
+ totalDataCount = sum(rsBlock.getDataCount()
+ for rsBlock in rsBlocks)
+
+ if buffer.getLengthInBits() > totalDataCount * 8:
+ raise Exception('code length overflow. (%s>%s)' %
+ (buffer.getLengthInBits(), totalDataCount * 8))
+
+ # end code
+ if buffer.getLengthInBits() + 4 <= totalDataCount * 8:
+ buffer.put(0, 4)
+
+ # padding
+ while buffer.getLengthInBits() % 8 != 0:
+ buffer.put(False)
+
+ # padding
+ while True:
+ if buffer.getLengthInBits() >= totalDataCount * 8:
+ break
+ buffer.put(QRCode.PAD0, 8)
+ if buffer.getLengthInBits() >= totalDataCount * 8:
+ break
+ buffer.put(QRCode.PAD1, 8)
+
+ return QRCode._createBytes(buffer, rsBlocks)
+
+ @staticmethod
+ def _createBytes(buffer, rsBlocks):
+
+ offset = 0
+
+ maxDcCount = 0
+ maxEcCount = 0
+
+ dcdata = [None] * len(rsBlocks)
+ ecdata = [None] * len(rsBlocks)
+
+ for r in range(len(rsBlocks)):
+
+ dcCount = rsBlocks[r].getDataCount()
+ ecCount = rsBlocks[r].getTotalCount() - dcCount
+
+ maxDcCount = max(maxDcCount, dcCount)
+ maxEcCount = max(maxEcCount, ecCount)
+
+ dcdata[r] = [0] * dcCount
+ for i in range(len(dcdata[r])):
+ dcdata[r][i] = 0xff & buffer.getBuffer()[i + offset]
+ offset += dcCount
+
+ rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount)
+ rawPoly = Polynomial(dcdata[r], rsPoly.getLength() - 1)
+
+ modPoly = rawPoly.mod(rsPoly)
+ ecdata[r] = [0] * (rsPoly.getLength() - 1)
+ for i in range(len(ecdata[r])):
+ modIndex = i + modPoly.getLength() - len(ecdata[r])
+ ecdata[r][i] = modPoly.get(modIndex) if modIndex >= 0 else 0
+
+ totalCodeCount = sum(rsBlock.getTotalCount()
+ for rsBlock in rsBlocks)
+
+ data = [0] * totalCodeCount
+
+ index = 0
+
+ for i in range(maxDcCount):
+ for r in range(len(rsBlocks)):
+ if i < len(dcdata[r]):
+ data[index] = dcdata[r][i]
+ index += 1
+
+ for i in range(maxEcCount):
+ for r in range(len(rsBlocks)):
+ if i < len(ecdata[r]):
+ data[index] = ecdata[r][i]
+ index += 1
+
+ return data
+
+ @staticmethod
+ def getMinimumQRCode(data, errorCorrectLevel):
+ mode = Mode.MODE_8BIT_BYTE # fixed to 8bit byte
+ qr = QRCode(correction=errorCorrectLevel)
+ qr.addData(data)
+ length = qr.getData(0).getLength()
+ for typeNumber in range(1, 11):
+ if length <= QRUtil.getMaxLength(
+ typeNumber, mode, errorCorrectLevel):
+ qr.setTypeNumber(typeNumber)
+ break
+ qr.make()
+ return qr
+
+
+class Mode(object):
+ MODE_NUMBER = 1 << 0
+ MODE_ALPHA_NUM = 1 << 1
+ MODE_8BIT_BYTE = 1 << 2
+ MODE_KANJI = 1 << 3
+
+
+class MaskPattern(object):
+ PATTERN000 = 0
+ PATTERN001 = 1
+ PATTERN010 = 2
+ PATTERN011 = 3
+ PATTERN100 = 4
+ PATTERN101 = 5
+ PATTERN110 = 6
+ PATTERN111 = 7
+
+
+class QRUtil(object):
+ @staticmethod
+ def getPatternPosition(typeNumber):
+ return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]
+
+ PATTERN_POSITION_TABLE = [
+ [],
+ [6, 18],
+ [6, 22],
+ [6, 26],
+ [6, 30],
+ [6, 34],
+ [6, 22, 38],
+ [6, 24, 42],
+ [6, 26, 46],
+ [6, 28, 50],
+ [6, 30, 54],
+ [6, 32, 58],
+ [6, 34, 62],
+ [6, 26, 46, 66],
+ [6, 26, 48, 70],
+ [6, 26, 50, 74],
+ [6, 30, 54, 78],
+ [6, 30, 56, 82],
+ [6, 30, 58, 86],
+ [6, 34, 62, 90],
+ [6, 28, 50, 72, 94],
+ [6, 26, 50, 74, 98],
+ [6, 30, 54, 78, 102],
+ [6, 28, 54, 80, 106],
+ [6, 32, 58, 84, 110],
+ [6, 30, 58, 86, 114],
+ [6, 34, 62, 90, 118],
+ [6, 26, 50, 74, 98, 122],
+ [6, 30, 54, 78, 102, 126],
+ [6, 26, 52, 78, 104, 130],
+ [6, 30, 56, 82, 108, 134],
+ [6, 34, 60, 86, 112, 138],
+ [6, 30, 58, 86, 114, 142],
+ [6, 34, 62, 90, 118, 146],
+ [6, 30, 54, 78, 102, 126, 150],
+ [6, 24, 50, 76, 102, 128, 154],
+ [6, 28, 54, 80, 106, 132, 158],
+ [6, 32, 58, 84, 110, 136, 162],
+ [6, 26, 54, 82, 110, 138, 166],
+ [6, 30, 58, 86, 114, 142, 170]
+ ]
+
+ MAX_LENGTH = [
+ [[41, 25, 17, 10], [34, 20, 14, 8], [27, 16, 11, 7], [17, 10, 7, 4]],
+ [[77, 47, 32, 20], [63, 38, 26, 16], [48, 29, 20, 12], [34, 20, 14, 8]],
+ [[127, 77, 53, 32], [101, 61, 42, 26], [77, 47, 32, 20], [58, 35, 24, 15]],
+ [[187, 114, 78, 48], [149, 90, 62, 38], [111, 67, 46, 28], [82, 50, 34, 21]],
+ [[255, 154, 106, 65], [202, 122, 84, 52], [144, 87, 60, 37], [106, 64, 44, 27]],
+ [[322, 195, 134, 82], [255, 154, 106, 65], [178, 108, 74, 45], [139, 84, 58, 36]],
+ [[370, 224, 154, 95], [293, 178, 122, 75], [207, 125, 86, 53], [154, 93, 64, 39]],
+ [[461, 279, 192, 118], [365, 221, 152, 93], [259, 157, 108, 66], [202, 122, 84, 52]],
+ [[552, 335, 230, 141], [432, 262, 180, 111], [312, 189, 130, 80], [235, 143, 98, 60]],
+ [[652, 395, 271, 167], [513, 311, 213, 131], [364, 221, 151, 93], [288, 174, 119, 74]]
+ ]
+
+ @staticmethod
+ def getMaxLength(typeNumber, mode, errorCorrectLevel):
+ e = {1: 0, 0: 1, 3: 2, 2: 3}[errorCorrectLevel]
+ m = {
+ Mode.MODE_NUMBER: 0,
+ Mode.MODE_ALPHA_NUM: 1,
+ Mode.MODE_8BIT_BYTE: 2,
+ Mode.MODE_KANJI: 3
+ }[mode]
+ return QRUtil.MAX_LENGTH[typeNumber - 1][e][m]
+
+ @staticmethod
+ def getErrorCorrectPolynomial(errorCorrectLength):
+ a = Polynomial([1])
+ for i in range(errorCorrectLength):
+ a = a.multiply(Polynomial([1, QRMath.gexp(i)]))
+ return a
+
+ @staticmethod
+ def getMaskFunction(maskPattern):
+ return {
+ MaskPattern.PATTERN000:
+ lambda i, j: (i + j) % 2 == 0,
+ MaskPattern.PATTERN001:
+ lambda i, j: i % 2 == 0,
+ MaskPattern.PATTERN010:
+ lambda i, j: j % 3 == 0,
+ MaskPattern.PATTERN011:
+ lambda i, j: (i + j) % 3 == 0,
+ MaskPattern.PATTERN100:
+ lambda i, j: (i // 2 + j // 3) % 2 == 0,
+ MaskPattern.PATTERN101:
+ lambda i, j: (i * j) % 2 + (i * j) % 3 == 0,
+ MaskPattern.PATTERN110:
+ lambda i, j: ((i * j) % 2 + (i * j) % 3) % 2 == 0,
+ MaskPattern.PATTERN111:
+ lambda i, j: ((i * j) % 3 + (i + j) % 2) % 2 == 0
+ }[maskPattern]
+
+ @staticmethod
+ def getLostPoint(qrcode):
+
+ moduleCount = qrcode.getModuleCount()
+ lostPoint = 0
+
+ # LEVEL1
+ for row in range(moduleCount):
+ for col in range(moduleCount):
+ sameCount = 0
+ dark = qrcode.isDark(row, col)
+ for r in range(-1, 2):
+ if row + r < 0 or moduleCount <= row + r:
+ continue
+ for c in range(-1, 2):
+ if col + c < 0 or moduleCount <= col + c:
+ continue
+ if r == 0 and c == 0:
+ continue
+ if dark == qrcode.isDark(row + r, col + c):
+ sameCount += 1
+ if sameCount > 5:
+ lostPoint += (3 + sameCount - 5)
+
+ # LEVEL2
+ for row in range(moduleCount - 1):
+ for col in range(moduleCount - 1):
+ count = 0
+ if qrcode.isDark(row, col):
+ count += 1
+ if qrcode.isDark(row + 1, col):
+ count += 1
+ if qrcode.isDark(row, col + 1):
+ count += 1
+ if qrcode.isDark(row + 1, col + 1):
+ count += 1
+ if count == 0 or count == 4:
+ lostPoint += 3
+
+ # LEVEL3
+ for row in range(moduleCount):
+ for col in range(moduleCount - 6):
+ if (qrcode.isDark(row, col)
+ and not qrcode.isDark(row, col + 1)
+ and qrcode.isDark(row, col + 2)
+ and qrcode.isDark(row, col + 3)
+ and qrcode.isDark(row, col + 4)
+ and not qrcode.isDark(row, col + 5)
+ and qrcode.isDark(row, col + 6)):
+ lostPoint += 40
+
+ for col in range(moduleCount):
+ for row in range(moduleCount - 6):
+ if (qrcode.isDark(row, col)
+ and not qrcode.isDark(row + 1, col)
+ and qrcode.isDark(row + 2, col)
+ and qrcode.isDark(row + 3, col)
+ and qrcode.isDark(row + 4, col)
+ and not qrcode.isDark(row + 5, col)
+ and qrcode.isDark(row + 6, col)):
+ lostPoint += 40
+
+ # LEVEL4
+ darkCount = 0
+ for col in range(moduleCount):
+ for row in range(moduleCount):
+ if qrcode.isDark(row, col):
+ darkCount += 1
+
+ ratio = abs(100 * darkCount // moduleCount // moduleCount - 50) // 5
+ lostPoint += ratio * 10
+
+ return lostPoint
+
+ G15 = ((1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) |
+ (1 << 2) | (1 << 1) | (1 << 0))
+ G18 = ((1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) |
+ (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0))
+ G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1)
+
+ @staticmethod
+ def getBCHTypeInfo(data):
+ d = data << 10
+ while QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0:
+ d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) -
+ QRUtil.getBCHDigit(QRUtil.G15)))
+ return ((data << 10) | d) ^ QRUtil.G15_MASK
+
+ @staticmethod
+ def getBCHTypeNumber(data):
+ d = data << 12
+ while QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0:
+ d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) -
+ QRUtil.getBCHDigit(QRUtil.G18)))
+ return (data << 12) | d
+
+ @staticmethod
+ def getBCHDigit(data):
+ digit = 0
+ while data != 0:
+ digit += 1
+ data >>= 1
+ return digit
+
+ @staticmethod
+ def stringToBytes(s):
+ return [ord(c) & 0xff for c in s]
+
+
+class QR8BitByte(object):
+
+ def __init__(self, data):
+ self.mode = Mode.MODE_8BIT_BYTE
+ self.data = data
+
+ def getMode(self):
+ return self.mode
+
+ def getData(self):
+ return self.data
+
+ '''
+ def write(self, buffer): raise Exception('not implemented.')
+ def getLength(self): raise Exception('not implemented.')
+ '''
+
+ def write(self, buffer):
+ data = QRUtil.stringToBytes(self.getData())
+ for d in data:
+ buffer.put(d, 8)
+
+ def getLength(self):
+ return len(QRUtil.stringToBytes(self.getData()))
+
+ def getLengthInBits(self, type):
+ if 1 <= type < 10: # 1 - 9
+ return {
+ Mode.MODE_NUMBER: 10,
+ Mode.MODE_ALPHA_NUM: 9,
+ Mode.MODE_8BIT_BYTE: 8,
+ Mode.MODE_KANJI: 8
+ }[self.mode]
+
+ elif type < 27: # 10 - 26
+ return {
+ Mode.MODE_NUMBER: 12,
+ Mode.MODE_ALPHA_NUM: 11,
+ Mode.MODE_8BIT_BYTE: 16,
+ Mode.MODE_KANJI: 10
+ }[self.mode]
+
+ elif type < 41: # 27 - 40
+ return {
+ Mode.MODE_NUMBER: 14,
+ Mode.MODE_ALPHA_NUM: 13,
+ Mode.MODE_8BIT_BYTE: 16,
+ Mode.MODE_KANJI: 12
+ }[self.mode]
+
+ else:
+ raise Exception('type:%s' % type)
+
+
+class QRMath(object):
+ EXP_TABLE = None
+ LOG_TABLE = None
+
+ @staticmethod
+ def _init():
+
+ QRMath.EXP_TABLE = [0] * 256
+ for i in range(256):
+ QRMath.EXP_TABLE[i] = (1 << i if i < 8 else
+ QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^
+ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8])
+
+ QRMath.LOG_TABLE = [0] * 256
+ for i in range(255):
+ QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i
+
+ @staticmethod
+ def glog(n):
+ if n < 1:
+ raise Exception('log(%s)' % n)
+ return QRMath.LOG_TABLE[n]
+
+ @staticmethod
+ def gexp(n):
+ while n < 0:
+ n += 255
+ while n >= 256:
+ n -= 255
+ return QRMath.EXP_TABLE[n]
+
+
+# initialize statics
+QRMath._init()
+
+
+class Polynomial(object):
+ def __init__(self, num, shift=0):
+ offset = 0
+ length = len(num)
+ while offset < length and num[offset] == 0:
+ offset += 1
+ self.num = num[offset:] + [0] * shift
+
+ def get(self, index):
+ return self.num[index]
+
+ def getLength(self):
+ return len(self.num)
+
+ def __repr__(self):
+ return ','.join([str(self.get(i))
+ for i in range(self.getLength())])
+
+ def toLogString(self):
+ return ','.join([str(QRMath.glog(self.get(i)))
+ for i in range(self.getLength())])
+
+ def multiply(self, e):
+ num = [0] * (self.getLength() + e.getLength() - 1)
+ for i in range(self.getLength()):
+ for j in range(e.getLength()):
+ num[i + j] ^= QRMath.gexp(QRMath.glog(self.get(i)) +
+ QRMath.glog(e.get(j)))
+ return Polynomial(num)
+
+ def mod(self, e):
+ if self.getLength() - e.getLength() < 0:
+ return self
+ ratio = QRMath.glog(self.get(0)) - QRMath.glog(e.get(0))
+ num = self.num[:]
+ for i in range(e.getLength()):
+ num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio)
+ return Polynomial(num).mod(e)
+
+
+class RSBlock(object):
+ RS_BLOCK_TABLE = [
+
+ # L
+ # M
+ # Q
+ # H
+
+ # 1
+ [1, 26, 19],
+ [1, 26, 16],
+ [1, 26, 13],
+ [1, 26, 9],
+
+ # 2
+ [1, 44, 34],
+ [1, 44, 28],
+ [1, 44, 22],
+ [1, 44, 16],
+
+ # 3
+ [1, 70, 55],
+ [1, 70, 44],
+ [2, 35, 17],
+ [2, 35, 13],
+
+ # 4
+ [1, 100, 80],
+ [2, 50, 32],
+ [2, 50, 24],
+ [4, 25, 9],
+
+ # 5
+ [1, 134, 108],
+ [2, 67, 43],
+ [2, 33, 15, 2, 34, 16],
+ [2, 33, 11, 2, 34, 12],
+
+ # 6
+ [2, 86, 68],
+ [4, 43, 27],
+ [4, 43, 19],
+ [4, 43, 15],
+
+ # 7
+ [2, 98, 78],
+ [4, 49, 31],
+ [2, 32, 14, 4, 33, 15],
+ [4, 39, 13, 1, 40, 14],
+
+ # 8
+ [2, 121, 97],
+ [2, 60, 38, 2, 61, 39],
+ [4, 40, 18, 2, 41, 19],
+ [4, 40, 14, 2, 41, 15],
+
+ # 9
+ [2, 146, 116],
+ [3, 58, 36, 2, 59, 37],
+ [4, 36, 16, 4, 37, 17],
+ [4, 36, 12, 4, 37, 13],
+
+ # 10
+ [2, 86, 68, 2, 87, 69],
+ [4, 69, 43, 1, 70, 44],
+ [6, 43, 19, 2, 44, 20],
+ [6, 43, 15, 2, 44, 16]
+ ]
+
+ def __init__(self, totalCount, dataCount):
+ self.totalCount = totalCount
+ self.dataCount = dataCount
+
+ def getDataCount(self):
+ return self.dataCount
+
+ def getTotalCount(self):
+ return self.totalCount
+
+ def __repr__(self):
+ return '(total=%s,data=%s)' % (self.totalCount, self.dataCount)
+
+ @staticmethod
+ def getRSBlocks(typeNumber, errorCorrectLevel):
+ rsBlock = RSBlock.getRsBlockTable(typeNumber, errorCorrectLevel)
+ length = len(rsBlock) // 3
+ list = []
+ for i in range(length):
+ count = rsBlock[i * 3 + 0]
+ totalCount = rsBlock[i * 3 + 1]
+ dataCount = rsBlock[i * 3 + 2]
+ list += [RSBlock(totalCount, dataCount)] * count
+ return list
+
+ @staticmethod
+ def getRsBlockTable(typeNumber, errorCorrectLevel):
+ return {
+ 1: RSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0],
+ 0: RSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1],
+ 3: RSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2],
+ 2: RSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]
+ }[errorCorrectLevel]
+
+
+class BitBuffer(object):
+ def __init__(self, inclements=32):
+ self.inclements = inclements
+ self.buffer = [0] * self.inclements
+ self.length = 0
+
+ def getBuffer(self):
+ return self.buffer
+
+ def getLengthInBits(self):
+ return self.length
+
+ def get(self, index):
+ return ((self.buffer[index // 8] >> (7 - index % 8)) & 1) == 1
+
+ def putBit(self, bit):
+ if self.length == len(self.buffer) * 8:
+ self.buffer += [0] * self.inclements
+ if bit:
+ self.buffer[self.length // 8] |= (0x80 >> (self.length % 8))
+ self.length += 1
+
+ def put(self, num, length):
+ for i in range(length):
+ self.putBit(((num >> (length - i - 1)) & 1) == 1)
+
+ def __repr__(self):
+ return ''.join('1' if self.get(i) else '0'
+ for i in range(self.getLengthInBits()))
+
+
+class GridDrawer(object):
+ """Mechanism to draw grids of boxes"""
+ def __init__(self, invert_code, smooth_factor):
+ self.invert_code = invert_code
+ self.smoothFactor = smooth_factor
+ self.grid = None
+
+ def set_grid(self, grid):
+ if len({len(g) for g in grid}) != 1:
+ raise Exception("The array is not rectangular")
+ else:
+ self.grid = grid
+
+ def row_count(self):
+ return len(self.grid) if self.grid is not None else 0
+
+ def col_count(self):
+ return len(self.grid[0]) if self.row_count() > 0 else 0
+
+ def isDark(self, col, row):
+ inside = col >= 0 and 0 <= row < self.row_count() and col < self.col_count()
+ return False if not inside else self.grid[row][col] != self.invert_code
+
+ @staticmethod
+ def moveByDirection(xyd):
+ dm = {0: (1, 0), 1: (0, -1), 2: (-1, 0), 3: (0, 1)}
+ return xyd[0] + dm[xyd[2]][0], xyd[1] + dm[xyd[2]][1]
+
+ @staticmethod
+ def makeDirectionsTable():
+ result = []
+ for cfg in product(range(2), repeat=4):
+ result.append([])
+ for d in range(4):
+ if cfg[3 - d] == 0 and cfg[3 - (d - 1) % 4] != 0:
+ result[-1].append(d)
+ return result
+
+ def createVertexesForAdvDrawer(self):
+ dirTable = self.makeDirectionsTable()
+ result = []
+ # Create vertex
+ for row in range(self.row_count() + 1):
+ for col in range(self.col_count() + 1):
+ indx = (2 ** 0 if self.isDark(col - 0, row - 1) else 0) + \
+ (2 ** 1 if self.isDark(col - 1, row - 1) else 0) + \
+ (2 ** 2 if self.isDark(col - 1, row - 0) else 0) + \
+ (2 ** 3 if self.isDark(col - 0, row - 0) else 0)
+
+ for d in dirTable[indx]:
+ result.append((col, row, d, len(dirTable[indx]) > 1))
+
+ return result
+
+ def getSmoothPosition(self, v, extraSmoothFactor=1.0):
+ vn = self.moveByDirection(v)
+ sc = extraSmoothFactor * self.smoothFactor / 2.0
+ sc1 = 1.0 - sc
+ return (v[0] * sc1 + vn[0] * sc, v[1] * sc1 + vn[1] * sc), (v[0] * sc + vn[0] * sc1, v[1] * sc + vn[1] * sc1)
+
+
+class QrCode(inkex.GenerateExtension):
+ """Generate QR Code Extension"""
+ def add_arguments(self, pars):
+ pars.add_argument("--text", default='www.inkscape.org')
+ pars.add_argument("--typenumber", type=int, default=0)
+ pars.add_argument("--correctionlevel", type=int, default=0)
+ pars.add_argument("--encoding", default="latin_1")
+ pars.add_argument("--modulesize", type=float, default=10.0)
+ pars.add_argument("--invert", type=inkex.Boolean, default="false")
+ pars.add_argument("--drawtype", default="greedy")
+ pars.add_argument("--smoothval", type=float, default=0.2)
+ pars.add_argument("--symbolid", default='')
+ pars.add_argument("--groupid", default='')
+
+ def generate(self):
+
+ scale = self.svg.unittouu('1px') # convert to document units
+ opt = self.options
+
+ if not opt.text:
+ raise inkex.AbortExtension('Please enter an input text')
+ elif opt.drawtype == "symbol" and opt.symbolid == "":
+ raise inkex.AbortExtension('Please enter symbol id')
+
+ if sys.version_info >= (3, 0, 0):
+ # for Python 3 ugly hack to represent bytes as str for Python2 compatibility
+ text_bytes = bytes(opt.text, opt.encoding).decode("latin_1")
+ text_str = str(opt.text)
+ else:
+ text_bytes = opt.text
+ text_str = opt.text.decode('utf-8')
+
+ grp = Group()
+ grp.set('inkscape:label', 'QR Code: ' + text_str)
+ if opt.groupid:
+ grp.set('id', opt.groupid)
+ pos_x, pos_y = self.svg.namedview.center
+ grp.transform.add_translate(pos_x, pos_y)
+ if scale:
+ grp.transform.add_scale(scale)
+
+ # GENERATE THE QRCODE
+ if opt.typenumber == 0:
+ # Automatic QR code size`
+ code = QRCode.getMinimumQRCode(text_bytes, opt.correctionlevel)
+ else:
+ # Manual QR code size
+ code = QRCode(correction=opt.correctionlevel)
+ code.setTypeNumber(int(opt.typenumber))
+ code.addData(text_bytes)
+ code.make()
+
+ self.boxsize = opt.modulesize
+ self.invert_code = opt.invert
+ self.margin = 4
+ self.draw = GridDrawer(opt.invert, opt.smoothval)
+ self.draw.set_grid(code.modules)
+ self.render_svg(grp, opt.drawtype)
+ return grp
+
+ def render_adv(self, greedy):
+
+ verts = self.draw.createVertexesForAdvDrawer()
+ qrPathStr = ""
+ while len(verts) > 0:
+ vertsIndexStart = len(verts) - 1
+ vertsIndexCur = vertsIndexStart
+ ringIndexes = []
+ while True:
+ ringIndexes.append(vertsIndexCur)
+ nextPos = self.draw.moveByDirection(verts[vertsIndexCur])
+ nextIndexes = [i for i, x in enumerate(verts) if x[0] == nextPos[0] and x[1] == nextPos[1]]
+ if len(nextIndexes) == 0 or len(nextIndexes) > 2:
+ raise Exception("Vertex " + str(next_c) + " has no connections")
+ elif len(nextIndexes) == 1:
+ vertsIndexNext = nextIndexes[0]
+ else:
+ if {verts[nextIndexes[0]][2], verts[nextIndexes[1]][2]} != {(verts[vertsIndexCur][2] - 1) % 4, (verts[vertsIndexCur][2] + 1) % 4}:
+ raise Exception("Bad next vertex directions " + str(verts[nextIndexes[0]]) + str(verts[nextIndexes[1]]))
+
+ # Greedy - CCW turn, proud and neutral CW turn
+ vertsIndexNext = nextIndexes[0] if (greedy == "g") == (verts[nextIndexes[0]][2] == (verts[vertsIndexCur][2] + 1) % 4) else nextIndexes[1]
+
+ if vertsIndexNext == vertsIndexStart:
+ break
+
+ vertsIndexCur = vertsIndexNext
+
+ posStart, _ = self.draw.getSmoothPosition(verts[ringIndexes[0]])
+ qrPathStr += "M %f,%f " % self.get_svg_pos(posStart[0], posStart[1])
+ for ri in range(len(ringIndexes)):
+ vc = verts[ringIndexes[ri]]
+ vn = verts[ringIndexes[(ri + 1) % len(ringIndexes)]]
+ if vn[2] != vc[2]:
+ if (greedy != "n") or not vn[3]:
+ # Add bezier
+ # Opt length http://spencermortensen.com/articles/bezier-circle/
+ # c = 0.552284749
+ ex = 1 - 0.552284749
+ _, bs = self.draw.getSmoothPosition(vc)
+ _, bp1 = self.draw.getSmoothPosition(vc, ex)
+ bp2, _ = self.draw.getSmoothPosition(vn, ex)
+ bf, _ = self.draw.getSmoothPosition(vn)
+ qrPathStr += "L %f,%f " % self.get_svg_pos(bs[0], bs[1])
+ qrPathStr += "C %f,%f %f,%f %f,%f " \
+ % (self.get_svg_pos(bp1[0], bp1[1]) + self.get_svg_pos(bp2[0], bp2[1]) +
+ self.get_svg_pos(bf[0], bf[1]))
+ else:
+ # Add straight
+ qrPathStr += "L %f,%f " % self.get_svg_pos(vn[0], vn[1])
+
+ qrPathStr += "z "
+
+ # Delete already processed vertex
+ for i in sorted(ringIndexes, reverse=True):
+ del verts[i]
+
+ path = PathElement()
+ path.set('d', qrPathStr)
+ return path
+
+ def render_obsolete(self):
+ for row in range(self.draw.row_count()):
+ for col in range(self.draw.col_count()):
+ if self.draw.isDark(col, row):
+ x, y = self.get_svg_pos(col, row)
+ return Rectangle.new(x, y, self.boxsize, self.boxsize)
+
+ def render_path(self, pointStr):
+ singlePath = self.get_icon_path_str(pointStr)
+ pathStr = ""
+ for row in range(self.draw.row_count()):
+ for col in range(self.draw.col_count()):
+ if self.draw.isDark(col, row):
+ x, y = self.get_svg_pos(col, row)
+ pathStr += "M %f,%f " % (x, y) + singlePath + " z "
+
+ path = PathElement()
+ path.set('d', pathStr)
+ return path
+
+ def render_symbol(self):
+ symbol = self.svg.getElementById(self.options.symbolid)
+ if symbol is None:
+ raise inkex.AbortExtension("Can't find symbol " + self.options.symbolid)
+ bbox = symbol.path.bounding_box()
+ transform = inkex.Transform(scale=(
+ float(self.boxsize) / bbox.width,
+ float(self.boxsize) / bbox.height,
+ ))
+ for row in range(self.draw.row_count()):
+ for col in range(self.draw.col_count()):
+ if self.draw.isDark(col, row):
+ x, y = self.get_svg_pos(col, row)
+ # Inkscape doesn't support width/height on use tags
+ return Use.new(symbol, x, y, transform=transform)
+
+ render_pathcustom = lambda self: self.render_path(self.options.symbolid)
+ render_neutral = lambda self: self.render_adv("n")
+ render_greedy = lambda self: self.render_adv("g")
+ render_proud = lambda self: self.render_adv("p")
+ render_simple = lambda self: self.render_path("h 1 v 1 h -1")
+
+ def render_circle(self):
+ s = 'm 0.5,0.5 ' \
+ 'c 0.2761423745,0 0.5,0.2238576255 0.5,0.5 ' \
+ 'c 0,0.2761423745 -0.2238576255,0.5 -0.5,0.5 ' \
+ 'c -0.2761423745,0 -0.5,-0.2238576255 -0.5,-0.5 ' \
+ 'c 0,-0.2761423745 0.2238576255,-0.5 0.5,-0.5'
+ return self.render_path(s)
+
+ def render_svg(self, grp, drawtype):
+ """Render to svg"""
+ drawer = getattr(self, "render_" + drawtype, self.render_obsolete)
+ if drawer is None:
+ raise Exception("Unknown draw type: " + drawtype)
+
+ canvas_width = (self.draw.col_count() + 2 * self.margin) * self.boxsize
+ canvas_height = (self.draw.row_count() + 2 * self.margin) * self.boxsize
+
+ # white background providing margin:
+ rect = grp.add(Rectangle.new(0, 0, canvas_width, canvas_height))
+ rect.style['stroke'] = 'none'
+ rect.style['fill'] = "black" if self.invert_code else "white"
+
+ qrg = grp.add(Group())
+ qrg.style['stroke'] = 'none'
+ qrg.style['fill'] = "white" if self.invert_code else "black"
+ qrg.add(drawer())
+
+ def get_svg_pos(self, col, row):
+ return (col + self.margin) * self.boxsize, (row + self.margin) * self.boxsize
+
+ def get_icon_path_str(self, pointStr):
+ result = ""
+ digBuffer = ""
+ for c in pointStr:
+ if c.isdigit() or c == "-" or c == '.':
+ digBuffer += c
+ else:
+ if len(digBuffer) > 0:
+ result += str(float(digBuffer) * self.boxsize)
+ digBuffer = ""
+ result += c
+
+ if len(digBuffer) > 0:
+ result += str(float(digBuffer) * self.boxsize)
+
+ return result
+
+
+
+if __name__ == '__main__':
+ QrCode().run()