From fdfbd5bc09d5a836daf995ae57fdbbb259193b8c Mon Sep 17 00:00:00 2001 From: Adam Soltys Date: Thu, 21 Mar 2013 16:48:38 -0700 Subject: Switch QR code libraries --- public/js/calculator.coffee | 5 +- public/js/qr.js | 738 -------------------------------------------- public/js/qrcode.js | 501 ++++++++++++++++++++++++++++++ 3 files changed, 503 insertions(+), 741 deletions(-) delete mode 100644 public/js/qr.js create mode 100644 public/js/qrcode.js (limited to 'public') diff --git a/public/js/calculator.coffee b/public/js/calculator.coffee index c9d3f017..6c68ae85 100644 --- a/public/js/calculator.coffee +++ b/public/js/calculator.coffee @@ -1,6 +1,6 @@ #= require jquery-1.8.2.min.js #= require moment.min.js -#= require qr.js +#= require qrcode.js #= require bootstrap.min.js #= require 2.5.3-crypto-sha256.js #= require jsbn.js @@ -75,7 +75,6 @@ setup = -> $('#currency').html(g.symbol.slice(-3)) $('#received').hide() - setupQR() setupSocket() fetchExchangeRate() @@ -154,7 +153,7 @@ updateTotal = -> total = '' $('#total').html(total.toString()) - displayQR('bitcoin:' + g.address + '?amount=' + total.toString()) + new QRCode('qr', "bitcoin: #{g.address}?amount=#{total.toString()}") fail = (msg) -> g.errors.push(msg) diff --git a/public/js/qr.js b/public/js/qr.js deleted file mode 100644 index a7ee92d7..00000000 --- a/public/js/qr.js +++ /dev/null @@ -1,738 +0,0 @@ -// alignment pattern -adelta = [ - 0, 11, 15, 19, 23, 27, 31, // force 1 pat - 16, 18, 20, 22, 24, 26, 28, 20, 22, 24, 24, 26, 28, 28, 22, 24, 24, - 26, 26, 28, 28, 24, 24, 26, 26, 26, 28, 28, 24, 26, 26, 26, 28, 28 - ]; - -// version block -vpat = [ - 0xc94, 0x5bc, 0xa99, 0x4d3, 0xbf6, 0x762, 0x847, 0x60d, - 0x928, 0xb78, 0x45d, 0xa17, 0x532, 0x9a6, 0x683, 0x8c9, - 0x7ec, 0xec4, 0x1e1, 0xfab, 0x08e, 0xc1a, 0x33f, 0xd75, - 0x250, 0x9d5, 0x6f0, 0x8ba, 0x79f, 0xb0b, 0x42e, 0xa64, - 0x541, 0xc69 -]; - -// final format bits with mask: level << 3 | mask -fmtword = [ - 0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976, //L - 0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0, //M - 0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed, //Q - 0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b //H -]; - -// 4 per version: number of blocks 1,2; data width; ecc width -eccblocks = [ - 1, 0, 19, 7, 1, 0, 16, 10, 1, 0, 13, 13, 1, 0, 9, 17, - 1, 0, 34, 10, 1, 0, 28, 16, 1, 0, 22, 22, 1, 0, 16, 28, - 1, 0, 55, 15, 1, 0, 44, 26, 2, 0, 17, 18, 2, 0, 13, 22, - 1, 0, 80, 20, 2, 0, 32, 18, 2, 0, 24, 26, 4, 0, 9, 16, - 1, 0, 108, 26, 2, 0, 43, 24, 2, 2, 15, 18, 2, 2, 11, 22, - 2, 0, 68, 18, 4, 0, 27, 16, 4, 0, 19, 24, 4, 0, 15, 28, - 2, 0, 78, 20, 4, 0, 31, 18, 2, 4, 14, 18, 4, 1, 13, 26, - 2, 0, 97, 24, 2, 2, 38, 22, 4, 2, 18, 22, 4, 2, 14, 26, - 2, 0, 116, 30, 3, 2, 36, 22, 4, 4, 16, 20, 4, 4, 12, 24, - 2, 2, 68, 18, 4, 1, 43, 26, 6, 2, 19, 24, 6, 2, 15, 28, - 4, 0, 81, 20, 1, 4, 50, 30, 4, 4, 22, 28, 3, 8, 12, 24, - 2, 2, 92, 24, 6, 2, 36, 22, 4, 6, 20, 26, 7, 4, 14, 28, - 4, 0, 107, 26, 8, 1, 37, 22, 8, 4, 20, 24, 12, 4, 11, 22, - 3, 1, 115, 30, 4, 5, 40, 24, 11, 5, 16, 20, 11, 5, 12, 24, - 5, 1, 87, 22, 5, 5, 41, 24, 5, 7, 24, 30, 11, 7, 12, 24, - 5, 1, 98, 24, 7, 3, 45, 28, 15, 2, 19, 24, 3, 13, 15, 30, - 1, 5, 107, 28, 10, 1, 46, 28, 1, 15, 22, 28, 2, 17, 14, 28, - 5, 1, 120, 30, 9, 4, 43, 26, 17, 1, 22, 28, 2, 19, 14, 28, - 3, 4, 113, 28, 3, 11, 44, 26, 17, 4, 21, 26, 9, 16, 13, 26, - 3, 5, 107, 28, 3, 13, 41, 26, 15, 5, 24, 30, 15, 10, 15, 28, - 4, 4, 116, 28, 17, 0, 42, 26, 17, 6, 22, 28, 19, 6, 16, 30, - 2, 7, 111, 28, 17, 0, 46, 28, 7, 16, 24, 30, 34, 0, 13, 24, - 4, 5, 121, 30, 4, 14, 47, 28, 11, 14, 24, 30, 16, 14, 15, 30, - 6, 4, 117, 30, 6, 14, 45, 28, 11, 16, 24, 30, 30, 2, 16, 30, - 8, 4, 106, 26, 8, 13, 47, 28, 7, 22, 24, 30, 22, 13, 15, 30, - 10, 2, 114, 28, 19, 4, 46, 28, 28, 6, 22, 28, 33, 4, 16, 30, - 8, 4, 122, 30, 22, 3, 45, 28, 8, 26, 23, 30, 12, 28, 15, 30, - 3, 10, 117, 30, 3, 23, 45, 28, 4, 31, 24, 30, 11, 31, 15, 30, - 7, 7, 116, 30, 21, 7, 45, 28, 1, 37, 23, 30, 19, 26, 15, 30, - 5, 10, 115, 30, 19, 10, 47, 28, 15, 25, 24, 30, 23, 25, 15, 30, - 13, 3, 115, 30, 2, 29, 46, 28, 42, 1, 24, 30, 23, 28, 15, 30, - 17, 0, 115, 30, 10, 23, 46, 28, 10, 35, 24, 30, 19, 35, 15, 30, - 17, 1, 115, 30, 14, 21, 46, 28, 29, 19, 24, 30, 11, 46, 15, 30, - 13, 6, 115, 30, 14, 23, 46, 28, 44, 7, 24, 30, 59, 1, 16, 30, - 12, 7, 121, 30, 12, 26, 47, 28, 39, 14, 24, 30, 22, 41, 15, 30, - 6, 14, 121, 30, 6, 34, 47, 28, 46, 10, 24, 30, 2, 64, 15, 30, - 17, 4, 122, 30, 29, 14, 46, 28, 49, 10, 24, 30, 24, 46, 15, 30, - 4, 18, 122, 30, 13, 32, 46, 28, 48, 14, 24, 30, 42, 32, 15, 30, - 20, 4, 117, 30, 40, 7, 47, 28, 43, 22, 24, 30, 10, 67, 15, 30, - 19, 6, 118, 30, 18, 31, 47, 28, 34, 34, 24, 30, 20, 61, 15, 30 -]; - -// Galois field log table -glog = [ - 0xff, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6, 0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b, - 0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81, 0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71, - 0x05, 0x8a, 0x65, 0x2f, 0xe1, 0x24, 0x0f, 0x21, 0x35, 0x93, 0x8e, 0xda, 0xf0, 0x12, 0x82, 0x45, - 0x1d, 0xb5, 0xc2, 0x7d, 0x6a, 0x27, 0xf9, 0xb9, 0xc9, 0x9a, 0x09, 0x78, 0x4d, 0xe4, 0x72, 0xa6, - 0x06, 0xbf, 0x8b, 0x62, 0x66, 0xdd, 0x30, 0xfd, 0xe2, 0x98, 0x25, 0xb3, 0x10, 0x91, 0x22, 0x88, - 0x36, 0xd0, 0x94, 0xce, 0x8f, 0x96, 0xdb, 0xbd, 0xf1, 0xd2, 0x13, 0x5c, 0x83, 0x38, 0x46, 0x40, - 0x1e, 0x42, 0xb6, 0xa3, 0xc3, 0x48, 0x7e, 0x6e, 0x6b, 0x3a, 0x28, 0x54, 0xfa, 0x85, 0xba, 0x3d, - 0xca, 0x5e, 0x9b, 0x9f, 0x0a, 0x15, 0x79, 0x2b, 0x4e, 0xd4, 0xe5, 0xac, 0x73, 0xf3, 0xa7, 0x57, - 0x07, 0x70, 0xc0, 0xf7, 0x8c, 0x80, 0x63, 0x0d, 0x67, 0x4a, 0xde, 0xed, 0x31, 0xc5, 0xfe, 0x18, - 0xe3, 0xa5, 0x99, 0x77, 0x26, 0xb8, 0xb4, 0x7c, 0x11, 0x44, 0x92, 0xd9, 0x23, 0x20, 0x89, 0x2e, - 0x37, 0x3f, 0xd1, 0x5b, 0x95, 0xbc, 0xcf, 0xcd, 0x90, 0x87, 0x97, 0xb2, 0xdc, 0xfc, 0xbe, 0x61, - 0xf2, 0x56, 0xd3, 0xab, 0x14, 0x2a, 0x5d, 0x9e, 0x84, 0x3c, 0x39, 0x53, 0x47, 0x6d, 0x41, 0xa2, - 0x1f, 0x2d, 0x43, 0xd8, 0xb7, 0x7b, 0xa4, 0x76, 0xc4, 0x17, 0x49, 0xec, 0x7f, 0x0c, 0x6f, 0xf6, - 0x6c, 0xa1, 0x3b, 0x52, 0x29, 0x9d, 0x55, 0xaa, 0xfb, 0x60, 0x86, 0xb1, 0xbb, 0xcc, 0x3e, 0x5a, - 0xcb, 0x59, 0x5f, 0xb0, 0x9c, 0xa9, 0xa0, 0x51, 0x0b, 0xf5, 0x16, 0xeb, 0x7a, 0x75, 0x2c, 0xd7, - 0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8, 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf -]; - -// Galios field exponent table -gexp = [ - 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1d, 0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26, - 0x4c, 0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9, 0x8f, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, - 0x9d, 0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35, 0x6a, 0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23, - 0x46, 0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0, 0x5d, 0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1, - 0x5f, 0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc, 0x65, 0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0, - 0xfd, 0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f, 0xfe, 0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2, - 0xd9, 0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, 0x0d, 0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce, - 0x81, 0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93, 0x3b, 0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc, - 0x85, 0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9, 0x4f, 0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54, - 0xa8, 0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa, 0x49, 0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73, - 0xe6, 0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e, 0xfc, 0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff, - 0xe3, 0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4, 0x95, 0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41, - 0x82, 0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6, - 0x51, 0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef, 0xc3, 0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09, - 0x12, 0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5, 0xf7, 0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16, - 0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x00 -]; - -// Working buffers: -// data input and ecc append, image working buffer, fixed part of image, run lengths for badness -var strinbuf=[], eccbuf=[], qrframe=[], framask=[], rlens=[]; -// Control values - width is based on version, last 4 are from table. -var version, width, neccblk1, neccblk2, datablkw, eccblkwid; -var ecclevel = 1; -// set bit to indicate cell in qrframe is immutable. symmetric around diagonal -function setmask(x, y) -{ - var bt; - if (x > y) { - bt = x; - x = y; - y = bt; - } - // y*y = 1+3+5... - bt = y; - bt *= y; - bt += y; - bt >>= 1; - bt += x; - framask[bt] = 1; -} - -// enter alignment pattern - black to qrframe, white to mask (later black frame merged to mask) -function putalign(x, y) -{ - var j; - - qrframe[x + width * y] = 1; - for (j = -2; j < 2; j++) { - qrframe[(x + j) + width * (y - 2)] = 1; - qrframe[(x - 2) + width * (y + j + 1)] = 1; - qrframe[(x + 2) + width * (y + j)] = 1; - qrframe[(x + j + 1) + width * (y + 2)] = 1; - } - for (j = 0; j < 2; j++) { - setmask(x - 1, y + j); - setmask(x + 1, y - j); - setmask(x - j, y - 1); - setmask(x + j, y + 1); - } -} - -//======================================================================== -// Reed Solomon error correction -// exponentiation mod N -function modnn(x) -{ - while (x >= 255) { - x -= 255; - x = (x >> 8) + (x & 255); - } - return x; -} - -var genpoly = []; - -// Calculate and append ECC data to data block. Block is in strinbuf, indexes to buffers given. -function appendrs(data, dlen, ecbuf, eclen) -{ - var i, j, fb; - - for (i = 0; i < eclen; i++) - strinbuf[ecbuf + i] = 0; - for (i = 0; i < dlen; i++) { - fb = glog[strinbuf[data + i] ^ strinbuf[ecbuf]]; - if (fb != 255) /* fb term is non-zero */ - for (j = 1; j < eclen; j++) - strinbuf[ecbuf + j - 1] = strinbuf[ecbuf + j] ^ gexp[modnn(fb + genpoly[eclen - j])]; - else - for( j = ecbuf ; j < ecbuf + eclen; j++ ) - strinbuf[j] = strinbuf[j + 1]; - strinbuf[ ecbuf + eclen - 1] = fb == 255 ? 0 : gexp[modnn(fb + genpoly[0])]; - } -} - -//======================================================================== -// Frame data insert following the path rules - -// check mask - since symmetrical use half. -function ismasked(x, y) -{ - var bt; - if (x > y) { - bt = x; - x = y; - y = bt; - } - bt = y; - bt += y * y; - bt >>= 1; - bt += x; - return framask[bt]; -} - -//======================================================================== -// Apply the selected mask out of the 8. -function applymask(m) -{ - var x, y, r3x, r3y; - - switch (m) { - case 0: - for (y = 0; y < width; y++) - for (x = 0; x < width; x++) - if (!((x + y) & 1) && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - break; - case 1: - for (y = 0; y < width; y++) - for (x = 0; x < width; x++) - if (!(y & 1) && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - break; - case 2: - for (y = 0; y < width; y++) - for (r3x = 0, x = 0; x < width; x++, r3x++) { - if (r3x == 3) - r3x = 0; - if (!r3x && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - } - break; - case 3: - for (r3y = 0, y = 0; y < width; y++, r3y++) { - if (r3y == 3) - r3y = 0; - for (r3x = r3y, x = 0; x < width; x++, r3x++) { - if (r3x == 3) - r3x = 0; - if (!r3x && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - } - } - break; - case 4: - for (y = 0; y < width; y++) - for (r3x = 0, r3y = ((y >> 1) & 1), x = 0; x < width; x++, r3x++) { - if (r3x == 3) { - r3x = 0; - r3y = !r3y; - } - if (!r3y && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - } - break; - case 5: - for (r3y = 0, y = 0; y < width; y++, r3y++) { - if (r3y == 3) - r3y = 0; - for (r3x = 0, x = 0; x < width; x++, r3x++) { - if (r3x == 3) - r3x = 0; - if (!((x & y & 1) + !(!r3x | !r3y)) && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - } - } - break; - case 6: - for (r3y = 0, y = 0; y < width; y++, r3y++) { - if (r3y == 3) - r3y = 0; - for (r3x = 0, x = 0; x < width; x++, r3x++) { - if (r3x == 3) - r3x = 0; - if (!(((x & y & 1) + (r3x && (r3x == r3y))) & 1) && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - } - } - break; - case 7: - for (r3y = 0, y = 0; y < width; y++, r3y++) { - if (r3y == 3) - r3y = 0; - for (r3x = 0, x = 0; x < width; x++, r3x++) { - if (r3x == 3) - r3x = 0; - if (!(((r3x && (r3x == r3y)) + ((x + y) & 1)) & 1) && !ismasked(x, y)) - qrframe[x + y * width] ^= 1; - } - } - break; - } - return; -} - -// Badness coefficients. -var N1 = 3, N2 = 3, N3 = 40, N4 = 10; - -// Using the table of the length of each run, calculate the amount of bad image -// - long runs or those that look like finders; called twice, once each for X and Y -function badruns(length) -{ - var i; - var runsbad = 0; - for (i = 0; i <= length; i++) - if (rlens[i] >= 5) - runsbad += N1 + rlens[i] - 5; - // BwBBBwB as in finder - for (i = 3; i < length - 1; i += 2) - if (rlens[i - 2] == rlens[i + 2] - && rlens[i + 2] == rlens[i - 1] - && rlens[i - 1] == rlens[i + 1] - && rlens[i - 1] * 3 == rlens[i] - // white around the black pattern? Not part of spec - && (rlens[i - 3] == 0 // beginning - || i + 3 > length // end - || rlens[i - 3] * 3 >= rlens[i] * 4 || rlens[i + 3] * 3 >= rlens[i] * 4) - ) - runsbad += N3; - return runsbad; -} - -// Calculate how bad the masked image is - blocks, imbalance, runs, or finders. -function badcheck() -{ - var x, y, h, b, b1; - var thisbad = 0; - var bw = 0; - - // blocks of same color. - for (y = 0; y < width - 1; y++) - for (x = 0; x < width - 1; x++) - if ((qrframe[x + width * y] && qrframe[(x + 1) + width * y] - && qrframe[x + width * (y + 1)] && qrframe[(x + 1) + width * (y + 1)]) // all black - || !(qrframe[x + width * y] || qrframe[(x + 1) + width * y] - || qrframe[x + width * (y + 1)] || qrframe[(x + 1) + width * (y + 1)])) // all white - thisbad += N2; - - // X runs - for (y = 0; y < width; y++) { - rlens[0] = 0; - for (h = b = x = 0; x < width; x++) { - if ((b1 = qrframe[x + width * y]) == b) - rlens[h]++; - else - rlens[++h] = 1; - b = b1; - bw += b ? 1 : -1; - } - thisbad += badruns(h); - } - - // black/white imbalance - if (bw < 0) - bw = -bw; - - var big = bw; - count = 0; - big += big << 2; - big <<= 1; - while (big > width * width) - big -= width * width, count++; - thisbad += count * N4; - - // Y runs - for (x = 0; x < width; x++) { - rlens[0] = 0; - for (h = b = y = 0; y < width; y++) { - if ((b1 = qrframe[x + width * y]) == b) - rlens[h]++; - else - rlens[++h] = 1; - b = b1; - } - thisbad += badruns(h); - } - return thisbad; -} - -function genframe(instring) -{ - var x, y, k, t, v, i, j, m; - -// find the smallest version that fits the string - t = instring.length; - version = 0; - do { - version++; - k = (ecclevel - 1) * 4 + (version - 1) * 16; - neccblk1 = eccblocks[k++]; - neccblk2 = eccblocks[k++]; - datablkw = eccblocks[k++]; - eccblkwid = eccblocks[k]; - k = datablkw * (neccblk1 + neccblk2) + neccblk2 - 3 + (version <= 9); - if (t <= k) - break; - } while (version < 40); - -// FIXME - insure that it fits insted of being truncated - width = 17 + 4 * version; - -// allocate, clear and setup data structures - v = datablkw + (datablkw + eccblkwid) * (neccblk1 + neccblk2) + neccblk2; - for( t = 0; t < v; t++ ) - eccbuf[t] = 0; - strinbuf = instring.slice(0); - - for( t = 0; t < width * width; t++ ) - qrframe[t] = 0; - - for( t = 0 ; t < (width * (width + 1) + 1) / 2; t++) - framask[t] = 0; - -// insert finders - black to frame, white to mask - for (t = 0; t < 3; t++) { - k = 0; - y = 0; - if (t == 1) - k = (width - 7); - if (t == 2) - y = (width - 7); - qrframe[(y + 3) + width * (k + 3)] = 1; - for (x = 0; x < 6; x++) { - qrframe[(y + x) + width * k] = 1; - qrframe[y + width * (k + x + 1)] = 1; - qrframe[(y + 6) + width * (k + x)] = 1; - qrframe[(y + x + 1) + width * (k + 6)] = 1; - } - for (x = 1; x < 5; x++) { - setmask(y + x, k + 1); - setmask(y + 1, k + x + 1); - setmask(y + 5, k + x); - setmask(y + x + 1, k + 5); - } - for (x = 2; x < 4; x++) { - qrframe[(y + x) + width * (k + 2)] = 1; - qrframe[(y + 2) + width * (k + x + 1)] = 1; - qrframe[(y + 4) + width * (k + x)] = 1; - qrframe[(y + x + 1) + width * (k + 4)] = 1; - } - } - -// alignment blocks - if (version > 1) { - t = adelta[version]; - y = width - 7; - for (;;) { - x = width - 7; - while (x > t - 3) { - putalign(x, y); - if (x < t) - break; - x -= t; - } - if (y <= t + 9) - break; - y -= t; - putalign(6, y); - putalign(y, 6); - } - } - -// single black - qrframe[8 + width * (width - 8)] = 1; - -// timing gap - mask only - for (y = 0; y < 7; y++) { - setmask(7, y); - setmask(width - 8, y); - setmask(7, y + width - 7); - } - for (x = 0; x < 8; x++) { - setmask(x, 7); - setmask(x + width - 8, 7); - setmask(x, width - 8); - } - -// reserve mask-format area - for (x = 0; x < 9; x++) - setmask(x, 8); - for (x = 0; x < 8; x++) { - setmask(x + width - 8, 8); - setmask(8, x); - } - for (y = 0; y < 7; y++) - setmask(8, y + width - 7); - -// timing row/col - for (x = 0; x < width - 14; x++) - if (x & 1) { - setmask(8 + x, 6); - setmask(6, 8 + x); - } - else { - qrframe[(8 + x) + width * 6] = 1; - qrframe[6 + width * (8 + x)] = 1; - } - -// version block - if (version > 6) { - t = vpat[version - 7]; - k = 17; - for (x = 0; x < 6; x++) - for (y = 0; y < 3; y++, k--) - if (1 & (k > 11 ? version >> (k - 12) : t >> k)) { - qrframe[(5 - x) + width * (2 - y + width - 11)] = 1; - qrframe[(2 - y + width - 11) + width * (5 - x)] = 1; - } - else { - setmask(5 - x, 2 - y + width - 11); - setmask(2 - y + width - 11, 5 - x); - } - } - -// sync mask bits - only set above for white spaces, so add in black bits - for (y = 0; y < width; y++) - for (x = 0; x <= y; x++) - if (qrframe[x + width * y]) - setmask(x, y); - -// convert string to bitstream -// 8 bit data to QR-coded 8 bit data (numeric or alphanum, or kanji not supported) - v = strinbuf.length; - -// string to array - for( i = 0 ; i < v; i++ ) - eccbuf[i] = strinbuf.charCodeAt(i); - strinbuf = eccbuf.slice(0); - -// calculate max string length - x = datablkw * (neccblk1 + neccblk2) + neccblk2; - if (v >= x - 2) { - v = x - 2; - if (version > 9) - v--; - } - -// shift and repack to insert length prefix - i = v; - if (version > 9) { - strinbuf[i + 2] = 0; - strinbuf[i + 3] = 0; - while (i--) { - t = strinbuf[i]; - strinbuf[i + 3] |= 255 & (t << 4); - strinbuf[i + 2] = t >> 4; - } - strinbuf[2] |= 255 & (v << 4); - strinbuf[1] = v >> 4; - strinbuf[0] = 0x40 | (v >> 12); - } - else { - strinbuf[i + 1] = 0; - strinbuf[i + 2] = 0; - while (i--) { - t = strinbuf[i]; - strinbuf[i + 2] |= 255 & (t << 4); - strinbuf[i + 1] = t >> 4; - } - strinbuf[1] |= 255 & (v << 4); - strinbuf[0] = 0x40 | (v >> 4); - } -// fill to end with pad pattern - i = v + 3 - (version < 10); - while (i < x) { - strinbuf[i++] = 0xec; - // buffer has room if (i == x) break; - strinbuf[i++] = 0x11; - } - -// calculate and append ECC - -// calculate generator polynomial - genpoly[0] = 1; - for (i = 0; i < eccblkwid; i++) { - genpoly[i + 1] = 1; - for (j = i; j > 0; j--) - genpoly[j] = genpoly[j] - ? genpoly[j - 1] ^ gexp[modnn(glog[genpoly[j]] + i)] : genpoly[j - 1]; - genpoly[0] = gexp[modnn(glog[genpoly[0]] + i)]; - } - for (i = 0; i <= eccblkwid; i++) - genpoly[i] = glog[genpoly[i]]; // use logs for genpoly[] to save calc step - -// append ecc to data buffer - k = x; - y = 0; - for (i = 0; i < neccblk1; i++) { - appendrs(y, datablkw, k, eccblkwid); - y += datablkw; - k += eccblkwid; - } - for (i = 0; i < neccblk2; i++) { - appendrs(y, datablkw + 1, k, eccblkwid); - y += datablkw + 1; - k += eccblkwid; - } -// interleave blocks - y = 0; - for (i = 0; i < datablkw; i++) { - for (j = 0; j < neccblk1; j++) - eccbuf[y++] = strinbuf[i + j * datablkw]; - for (j = 0; j < neccblk2; j++) - eccbuf[y++] = strinbuf[(neccblk1 * datablkw) + i + (j * (datablkw + 1))]; - } - for (j = 0; j < neccblk2; j++) - eccbuf[y++] = strinbuf[(neccblk1 * datablkw) + i + (j * (datablkw + 1))]; - for (i = 0; i < eccblkwid; i++) - for (j = 0; j < neccblk1 + neccblk2; j++) - eccbuf[y++] = strinbuf[x + i + j * eccblkwid]; - strinbuf = eccbuf; - -// pack bits into frame avoiding masked area. - x = y = width - 1; - k = v = 1; // up, minus - /* inteleaved data and ecc codes */ - m = (datablkw + eccblkwid) * (neccblk1 + neccblk2) + neccblk2; - for (i = 0; i < m; i++) { - t = strinbuf[i]; - for (j = 0; j < 8; j++, t <<= 1) { - if (0x80 & t) - qrframe[x + width * y] = 1; - do { // find next fill position - if (v) - x--; - else { - x++; - if (k) { - if (y != 0) - y--; - else { - x -= 2; - k = !k; - if (x == 6) { - x--; - y = 9; - } - } - } - else { - if (y != width - 1) - y++; - else { - x -= 2; - k = !k; - if (x == 6) { - x--; - y -= 8; - } - } - } - } - v = !v; - } while (ismasked(x, y)); - } - } - -// save pre-mask copy of frame - strinbuf = qrframe.slice(0); - t = 0; // best - y = 30000; // demerit -// for instead of while since in original arduino code -// if an early mask was "good enough" it wouldn't try for a better one -// since they get more complex and take longer. - for (k = 0; k < 8; k++) { - applymask(k); // returns black-white imbalance - x = badcheck(); - if (x < y) { // current mask better than previous best? - y = x; - t = k; - } - if (t == 7) - break; // don't increment i to a void redoing mask - qrframe = strinbuf.slice(0); // reset for next pass - } - if (t != k) // redo best mask - none good enough, last wasn't t - applymask(t); - -// add in final mask/ecclevel bytes - y = fmtword[t + ((ecclevel - 1) << 3)]; - // low byte - for (k = 0; k < 8; k++, y >>= 1) - if (y & 1) { - qrframe[(width - 1 - k) + width * 8] = 1; - if (k < 6) - qrframe[8 + width * k] = 1; - else - qrframe[8 + width * (k + 1)] = 1; - } - // high byte - for (k = 0; k < 7; k++, y >>= 1) - if (y & 1) { - qrframe[8 + width * (width - 7 + k)] = 1; - if (k) - qrframe[(6 - k) + width * 8] = 1; - else - qrframe[7 + width * 8] = 1; - } - -// return image - return qrframe; -} - -var wd, ht, qrc; -function setupQR(){ - wd = 300; - ht = 300; - mp = document.getElementById("mapcanv"); - - var elem = document.getElementById('qrcanv'); - qrc = elem.getContext('2d'); - qrc.canvas.width = wd; - qrc.canvas.height = ht; - qrc.fillStyle = '#eee'; - qrc.fillRect(0,0,wd,ht); -} - -function displayQR(value) { - d = document; - ecclevel = 1; - qf = genframe(value); - qrc.lineWidth=1; - - var i,j; - px = wd; - if( ht < wd ) - px = ht; - px /= width+10; - px=Math.round(px - 0.5); - qrc.clearRect(0,0,wd,ht); - qrc.fillStyle = '#fff'; - qrc.fillRect(0,0,px*(width+8),px*(width+8)); - qrc.fillStyle = '#000'; - for( i = 0; i < width; i++ ) - for( j = 0; j < width; j++ ) - if( qf[j*width+i] ) - qrc.fillRect(px*(4+i),px*(4+j),px,px) -} diff --git a/public/js/qrcode.js b/public/js/qrcode.js new file mode 100644 index 00000000..9fb20227 --- /dev/null +++ b/public/js/qrcode.js @@ -0,0 +1,501 @@ +/** + * @fileoverview + * - Using the 'QRCode for Javascript library' + * - Fixed dataset of 'QRCode for Javascript library' for support full-spec. + * - this library has no dependencies. + * + * @author davidshimjs + * @see http://www.d-project.com/ + * @see http://jeromeetienne.github.com/jquery-qrcode/ + */ +var QRCode; + +(function () { + //--------------------------------------------------------------------- + // QRCode for JavaScript + // + // Copyright (c) 2009 Kazuhiko Arase + // + // URL: http://www.d-project.com/ + // + // Licensed under the MIT license: + // http://www.opensource.org/licenses/mit-license.php + // + // The word "QR Code" is registered trademark of + // DENSO WAVE INCORPORATED + // http://www.denso-wave.com/qrcode/faqpatent-e.html + // + //--------------------------------------------------------------------- + function QR8bitByte(data){this.mode=QRMode.MODE_8BIT_BYTE;this.data=data;} + QR8bitByte.prototype={getLength:function(buffer){return this.data.length;},write:function(buffer){for(var i=0;i=7){this.setupTypeNumber(test);} + if(this.dataCache==null){this.dataCache=QRCodeModel.createData(this.typeNumber,this.errorCorrectLevel,this.dataList);} + this.mapData(this.dataCache,maskPattern);},setupPositionProbePattern:function(row,col){for(var r=-1;r<=7;r++){if(row+r<=-1||this.moduleCount<=row+r)continue;for(var c=-1;c<=7;c++){if(col+c<=-1||this.moduleCount<=col+c)continue;if((0<=r&&r<=6&&(c==0||c==6))||(0<=c&&c<=6&&(r==0||r==6))||(2<=r&&r<=4&&2<=c&&c<=4)){this.modules[row+r][col+c]=true;}else{this.modules[row+r][col+c]=false;}}}},getBestMaskPattern:function(){var minLostPoint=0;var pattern=0;for(var i=0;i<8;i++){this.makeImpl(true,i);var lostPoint=QRUtil.getLostPoint(this);if(i==0||minLostPoint>lostPoint){minLostPoint=lostPoint;pattern=i;}} + return pattern;},createMovieClip:function(target_mc,instance_name,depth){var qr_mc=target_mc.createEmptyMovieClip(instance_name,depth);var cs=1;this.make();for(var row=0;row>i)&1)==1);this.modules[Math.floor(i/3)][i%3+this.moduleCount-8-3]=mod;} + for(var i=0;i<18;i++){var mod=(!test&&((bits>>i)&1)==1);this.modules[i%3+this.moduleCount-8-3][Math.floor(i/3)]=mod;}},setupTypeInfo:function(test,maskPattern){var data=(this.errorCorrectLevel<<3)|maskPattern;var bits=QRUtil.getBCHTypeInfo(data);for(var i=0;i<15;i++){var mod=(!test&&((bits>>i)&1)==1);if(i<6){this.modules[i][8]=mod;}else if(i<8){this.modules[i+1][8]=mod;}else{this.modules[this.moduleCount-15+i][8]=mod;}} + for(var i=0;i<15;i++){var mod=(!test&&((bits>>i)&1)==1);if(i<8){this.modules[8][this.moduleCount-i-1]=mod;}else if(i<9){this.modules[8][15-i-1+1]=mod;}else{this.modules[8][15-i-1]=mod;}} + this.modules[this.moduleCount-8][8]=(!test);},mapData:function(data,maskPattern){var inc=-1;var row=this.moduleCount-1;var bitIndex=7;var byteIndex=0;for(var col=this.moduleCount-1;col>0;col-=2){if(col==6)col--;while(true){for(var c=0;c<2;c++){if(this.modules[row][col-c]==null){var dark=false;if(byteIndex>>bitIndex)&1)==1);} + var mask=QRUtil.getMask(maskPattern,row,col-c);if(mask){dark=!dark;} + this.modules[row][col-c]=dark;bitIndex--;if(bitIndex==-1){byteIndex++;bitIndex=7;}}} + row+=inc;if(row<0||this.moduleCount<=row){row-=inc;inc=-inc;break;}}}}};QRCodeModel.PAD0=0xEC;QRCodeModel.PAD1=0x11;QRCodeModel.createData=function(typeNumber,errorCorrectLevel,dataList){var rsBlocks=QRRSBlock.getRSBlocks(typeNumber,errorCorrectLevel);var buffer=new QRBitBuffer();for(var i=0;itotalDataCount*8){throw new Error("code length overflow. (" + +buffer.getLengthInBits() + +">" + +totalDataCount*8 + +")");} + if(buffer.getLengthInBits()+4<=totalDataCount*8){buffer.put(0,4);} + while(buffer.getLengthInBits()%8!=0){buffer.putBit(false);} + while(true){if(buffer.getLengthInBits()>=totalDataCount*8){break;} + buffer.put(QRCodeModel.PAD0,8);if(buffer.getLengthInBits()>=totalDataCount*8){break;} + buffer.put(QRCodeModel.PAD1,8);} + return QRCodeModel.createBytes(buffer,rsBlocks);};QRCodeModel.createBytes=function(buffer,rsBlocks){var offset=0;var maxDcCount=0;var maxEcCount=0;var dcdata=new Array(rsBlocks.length);var ecdata=new Array(rsBlocks.length);for(var r=0;r=0)?modPoly.get(modIndex):0;}} + var totalCodeCount=0;for(var i=0;i=0){d^=(QRUtil.G15<<(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G15)));} + return((data<<10)|d)^QRUtil.G15_MASK;},getBCHTypeNumber:function(data){var 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;},getBCHDigit:function(data){var digit=0;while(data!=0){digit++;data>>>=1;} + return digit;},getPatternPosition:function(typeNumber){return QRUtil.PATTERN_POSITION_TABLE[typeNumber-1];},getMask:function(maskPattern,i,j){switch(maskPattern){case QRMaskPattern.PATTERN000:return(i+j)%2==0;case QRMaskPattern.PATTERN001:return i%2==0;case QRMaskPattern.PATTERN010:return j%3==0;case QRMaskPattern.PATTERN011:return(i+j)%3==0;case QRMaskPattern.PATTERN100:return(Math.floor(i/2)+Math.floor(j/3))%2==0;case QRMaskPattern.PATTERN101:return(i*j)%2+(i*j)%3==0;case QRMaskPattern.PATTERN110:return((i*j)%2+(i*j)%3)%2==0;case QRMaskPattern.PATTERN111:return((i*j)%3+(i+j)%2)%2==0;default:throw new Error("bad maskPattern:"+maskPattern);}},getErrorCorrectPolynomial:function(errorCorrectLength){var a=new QRPolynomial([1],0);for(var i=0;i5){lostPoint+=(3+sameCount-5);}}} + for(var row=0;row=256){n-=255;} + return QRMath.EXP_TABLE[n];},EXP_TABLE:new Array(256),LOG_TABLE:new Array(256)};for(var i=0;i<8;i++){QRMath.EXP_TABLE[i]=1<>>(7-index%8))&1)==1;},put:function(num,length){for(var i=0;i>>(length-i-1))&1)==1);}},getLengthInBits:function(){return this.length;},putBit:function(bit){var bufIndex=Math.floor(this.length/8);if(this.buffer.length<=bufIndex){this.buffer.push(0);} + if(bit){this.buffer[bufIndex]|=(0x80>>>(this.length%8));} + this.length++;}};var QRCodeLimitLength=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]]; + + function _isSupportCanvas() { + return typeof CanvasRenderingContext2D != "undefined"; + } + + // android 2.x doesn't support Data-URI spec + function _getAndroid() { + var android = false; + var sAgent = navigator.userAgent; + + if (/android/i.test(sAgent)) { // android + android = true; + aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i); + + if (aMat && aMat[1]) { + android = parseFloat(aMat[1]); + } + } + + return android; + } + + // Drawing in DOM by using Table tag + var Drawing = !_isSupportCanvas() ? (function () { + var _el = null; + var _htOption = null; + + var Drawing = function (el, htOption) { + _el = el; + _htOption = htOption; + }; + + /** + * Draw the QRCode + * + * @param {QRCode} oQRCode + */ + Drawing.prototype.draw = function (oQRCode) { + var nCount = oQRCode.getModuleCount(); + var nWidth = Math.floor(_htOption.width / nCount); + var nHeight = Math.floor(_htOption.height / nCount); + var aHTML = ['']; + + for (var row = 0; row < nCount; row++) { + aHTML.push(''); + + for (var col = 0; col < nCount; col++) { + aHTML.push(''); + } + + aHTML.push(''); + } + + aHTML.push('
'); + _el.innerHTML = aHTML.join(''); + + // Fix the margin values as real size. + var elTable = _el.childNodes[0]; + var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2; + var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2; + + if (nLeftMarginTable > 0 && nTopMarginTable > 0) { + elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px"; + } + }; + + /** + * Clear the QRCode + */ + Drawing.prototype.clear = function () { + _el.innerHTML = ''; + }; + + return Drawing; + })() : (function () { // Drawing in Canvas + var _el = null; + var _elCanvas = null; + var _elImage = null; + var _fFail = null; + var _fSuccess = null; + var _htOption = null; + var _bSupportDataURI = null; + var _oContext = null; + var _bIsPainted = false; + var _android = _getAndroid(); + + function _onMakeImage() { + _elImage.src = _elCanvas.toDataURL("image/png"); + _elImage.style.display = "block"; + _elCanvas.style.display = "none"; + } + + // Android 2.1 bug workaround + // http://code.google.com/p/android/issues/detail?id=5141 + if (_android && _android <= 2.1) { + var factor = 1 / window.devicePixelRatio; + var drawImage = CanvasRenderingContext2D.prototype.drawImage; + CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) { + if (("nodeName" in image) && /img/i.test(image.nodeName)) { + for (var i = arguments.length - 1; i >= 1; i--) { + arguments[i] = arguments[i] * factor; + } + } else if (typeof dw == "undefined") { + arguments[1] *= factor; + arguments[2] *= factor; + arguments[3] *= factor; + arguments[4] *= factor; + } + + drawImage.apply(this, arguments); + }; + } + + /** + * Check whether the user's browser supports Data URI or not + * + * @private + * @param {Function} fSuccess Occurs if it supports Data URI + * @param {Function} fFail Occurs if it doesn't support Data URI + */ + function _safeSetDataURI(fSuccess, fFail) { + _fFail = fFail; + _fSuccess = fSuccess; + + // Check it just once + if (_bSupportDataURI === null) { + var el = document.createElement("img"); + var fOnError = function () { + _bSupportDataURI = false; + + if (_fFail) { + _fFail(); + } + }; + var fOnSuccess = function () { + _bSupportDataURI = true; + + if (_fSuccess) { + _fSuccess(); + } + }; + + el.onabort = fOnError; + el.onerror = fOnError; + el.onload = fOnSuccess; + el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data. + return; + } else if (_bSupportDataURI === true && _fSuccess) { + _fSuccess(); + } else if (_bSupportDataURI === false && _fFail) { + _fFail(); + } + }; + + /** + * Drawing QRCode by using canvas + * + * @constructor + * @param {HTMLElement} el + * @param {Object} htOption QRCode Options + */ + var Drawing = function (el, htOption) { + _htOption = htOption; + _elCanvas = document.createElement("canvas"); + _elCanvas.width = htOption.width; + _elCanvas.height = htOption.height; + el.appendChild(_elCanvas); + _el = el; + _oContext = _elCanvas.getContext("2d"); + _bIsPainted = false; + _elImage = document.createElement("img"); + _elImage.style.display = "none"; + _el.appendChild(_elImage); + _bSupportDataURI = null; + }; + + /** + * Draw the QRCode + * + * @param {QRCode} oQRCode + */ + Drawing.prototype.draw = function (oQRCode) { + _elImage.style.display = "none"; + var nCount = oQRCode.getModuleCount(); + var nWidth = _htOption.width / nCount; + var nHeight = _htOption.height / nCount; + var nRoundedWidth = Math.round(nWidth); + var nRoundedHeight = Math.round(nHeight); + this.clear(); + + for (var row = 0; row < nCount; row++) { + for (var col = 0; col < nCount; col++) { + var bIsDark = oQRCode.isDark(row, col); + var nLeft = col * nWidth; + var nTop = row * nHeight; + _oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; + _oContext.lineWidth = 1; + _oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; + _oContext.fillRect(nLeft, nTop, nWidth, nHeight); + + // 안티 앨리어싱 방지 처리 + _oContext.strokeRect( + Math.floor(nLeft) + 0.5, + Math.floor(nTop) + 0.5, + nRoundedWidth, + nRoundedHeight + ); + + _oContext.strokeRect( + Math.ceil(nLeft) - 0.5, + Math.ceil(nTop) - 0.5, + nRoundedWidth, + nRoundedHeight + ); + } + } + + _bIsPainted = true; + }; + + /** + * Make the image from Canvas if the browser supports Data URI. + */ + Drawing.prototype.makeImage = function () { + if (_bIsPainted) { + _safeSetDataURI(_onMakeImage); + } + }; + + /** + * Return whether the QRCode is painted or not + * + * @return {Boolean} + */ + Drawing.prototype.isPainted = function () { + return _bIsPainted; + }; + + /** + * Clear the QRCode + */ + Drawing.prototype.clear = function () { + _oContext.clearRect(0, 0, _elCanvas.width, _elCanvas.height); + _bIsPainted = false; + }; + + /** + * @private + * @param {Number} nNumber + */ + Drawing.prototype.round = function (nNumber) { + if (!nNumber) { + return nNumber; + } + + return Math.floor(nNumber * 1000) / 1000; + }; + + return Drawing; + })(); + + /** + * Get the type by string length + * + * @private + * @param {String} sText + * @param {Number} nCorrectLevel + * @return {Number} type + */ + function _getTypeNumber(sText, nCorrectLevel) { + var nType = 1; + + for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) { + var nLimit = 0; + + switch (nCorrectLevel) { + case QRErrorCorrectLevel.L : + nLimit = QRCodeLimitLength[i][0]; + break; + case QRErrorCorrectLevel.M : + nLimit = QRCodeLimitLength[i][1]; + break; + case QRErrorCorrectLevel.Q : + nLimit = QRCodeLimitLength[i][2]; + break; + case QRErrorCorrectLevel.H : + nLimit = QRCodeLimitLength[i][3]; + break; + } + + if (sText.length <= nLimit) { + break; + } else { + nType++; + } + } + + if (nType > QRCodeLimitLength.length) { + throw new Error("Too long data"); + } + + return nType; + } + + /** + * @class QRCode + * @constructor + * @example + * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie"); + * + * @example + * var oQRCode = new QRCode("test", { + * text : "http://naver.com", + * width : 128, + * height : 128 + * }); + * + * oQRCode.clear(); // Clear the QRCode. + * oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode. + * + * @param {HTMLElement|String} el target element or 'id' attribute of element. + * @param {Object|String} vOption + * @param {String} vOption.text QRCode link data + * @param {Number} [vOption.width=256] + * @param {Number} [vOption.height=256] + * @param {String} [vOption.colorDark="#000000"] + * @param {String} [vOption.colorLight="#ffffff"] + * @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] + */ + QRCode = function (el, vOption) { + this._htOption = { + width : 256, + height : 256, + typeNumber : 4, + colorDark : "#000000", + colorLight : "#ffffff", + correctLevel : QRErrorCorrectLevel.H + }; + + if (typeof vOption === 'string') { + vOption = { + text : vOption + }; + } + + // Overwrites options + if (vOption) { + for (var i in vOption) { + this._htOption[i] = vOption[i]; + } + } + + if (typeof el == "string") { + el = document.getElementById(el); + } + + this._android = _getAndroid(); + this._el = el; + this._oQRCode = null; + this._oDrawing = new Drawing(this._el, this._htOption); + + if (this._htOption.text) { + this.makeCode(this._htOption.text); + } + }; + + /** + * Make the QRCode + * + * @param {String} sText link data + */ + QRCode.prototype.makeCode = function (sText) { + this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel); + this._oQRCode.addData(sText); + this._oQRCode.make(); + this._el.title = sText; + this._oDrawing.draw(this._oQRCode); + this.makeImage(); + }; + + /** + * Make the Image from Canvas element + * - It occurs automatically + * - Android below 3 doesn't support Data-URI spec. + * + * @private + */ + QRCode.prototype.makeImage = function () { + if (typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) { + this._oDrawing.makeImage(); + } + }; + + /** + * Clear the QRCode + */ + QRCode.prototype.clear = function () { + this._oDrawing.clear(); + }; + + /** + * @name QRCode.CorrectLevel + */ + QRCode.CorrectLevel = QRErrorCorrectLevel; +})(); \ No newline at end of file -- cgit v1.2.3