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var v = []; var d = []; var h = []; var b = []; var k = []; var w = 2; function g(r, o) { var f; if (r > o) { f = r; r = o; o = f; } f = o; f *= o; f += o; f >>= 1; b[(f += r)] = 1; } function m(r, f) { var e; for (h[r + o * f] = 1, e = -2; e < 2; e++) { h[r + e + o * (f - 2)] = 1; h[r - 2 + o * (f + e + 1)] = 1; h[r + 2 + o * (f + e)] = 1; h[r + e + 1 + o * (f + 2)] = 1; } for (e = 0; e < 2; e++) { g(r - 1, f + e); g(r + 1, f - e); g(r - e, f - 1); g(r + e, f + 1); } } function x(r) { for (; r >= 255; ) { r = ((r -= 255) >> 8) + (255 & r); } return r; } var z = []; function p(r, o, f, e) { var a; var t; var n; for (a = 0; a < e; a++) { v[f + a] = 0; } for (a = 0; a < o; a++) { if (255 != (n = l[v[r + a] ^ v[f]])) { for (t = 1; t < e; t++) { v[f + t - 1] = v[f + t] ^ u[x(n + z[e - t])]; } } else { for (t = f; t < f + e; t++) { v[t] = v[t + 1]; } } v[f + e - 1] = 255 == n ? 0 : u[x(n + z[0])]; } } function A(r, o) { var f; if (r > o) { f = r; r = o; o = f; } f = o; f += o * o; f >>= 1; return b[(f += r)]; } function C(r) { var f; var e; var a; var t; switch (r) { case 0: for (e = 0; e < o; e++) { for (f = 0; f < o; f++) { (f + e) & 1 || A(f, e) || (h[f + e * o] ^= 1); } } break; case 1: for (e = 0; e < o; e++) { for (f = 0; f < o; f++) { 1 & e || A(f, e) || (h[f + e * o] ^= 1); } } break; case 2: for (e = 0; e < o; e++) { for (a = 0, f = 0; f < o; f++, a++) { if (3 == a) { a = 0; } a || A(f, e) || (h[f + e * o] ^= 1); } } break; case 3: for (t = 0, e = 0; e < o; e++, t++) { for (3 == t && (t = 0), a = t, f = 0; f < o; f++, a++) { if (3 == a) { a = 0; } a || A(f, e) || (h[f + e * o] ^= 1); } } break; case 4: for (e = 0; e < o; e++) { for (a = 0, t = (e >> 1) & 1, f = 0; f < o; f++, a++) { if (3 == a) { a = 0; t = !t; } t || A(f, e) || (h[f + e * o] ^= 1); } } break; case 5: for (t = 0, e = 0; e < o; e++, t++) { for (3 == t && (t = 0), a = 0, f = 0; f < o; f++, a++) { if (3 == a) { a = 0; } (f & e & 1) + !(!a | !t) || A(f, e) || (h[f + e * o] ^= 1); } } break; case 6: for (t = 0, e = 0; e < o; e++, t++) { for (3 == t && (t = 0), a = 0, f = 0; f < o; f++, a++) { if (3 == a) { a = 0; } ((f & e & 1) + (a && a == t)) & 1 || A(f, e) || (h[f + e * o] ^= 1); } } break; case 7: for (t = 0, e = 0; e < o; e++, t++) { for (3 == t && (t = 0), a = 0, f = 0; f < o; f++, a++) { if (3 == a) { a = 0; } ((a && a == t) + ((f + e) & 1)) & 1 || A(f, e) || (h[f + e * o] ^= 1); } } } } function F(r) { var o; var f = 0; for (o = 0; o <= r; o++) { if (k[o] >= 5) { f += 3 + k[o] - 5; } } for (o = 3; o < r - 1; o += 2) { if ( k[o - 2] == k[o + 2] && k[o + 2] == k[o - 1] && k[o - 1] == k[o + 1] && 3 * k[o - 1] == k[o] && (0 == k[o - 3] || o + 3 > r || 3 * k[o - 3] >= 4 * k[o] || 3 * k[o + 3] >= 4 * k[o]) ) { f += 40; } } return f; } function M() { var r; var f; var e; var a; var t; var n = 0; var c = 0; for (f = 0; f < o - 1; f++) { for (r = 0; r < o - 1; r++) { if ( (h[r + o * f] && h[r + 1 + o * f] && h[r + o * (f + 1)] && h[r + 1 + o * (f + 1)]) || !(h[r + o * f] || h[r + 1 + o * f] || h[r + o * (f + 1)] || h[r + 1 + o * (f + 1)]) ) { n += 3; } } } for (f = 0; f < o; f++) { for (k[0] = 0, e = a = r = 0; r < o; r++) { (t = h[r + o * f]) == a ? k[e]++ : (k[++e] = 1); c += (a = t) ? 1 : -1; } n += F(e); } if (c < 0) { c = -c; } var i = c; var s = 0; for (i += i << 2, i <<= 1; i > o * o; ) { i -= o * o; s++; } for (n += 10 * s, r = 0; r < o; r++) { for (k[0] = 0, e = a = f = 0; f < o; f++) { (t = h[r + o * f]) == a ? k[e]++ : (k[++e] = 1); a = t; } n += F(e); } return n; } var R = null; var _ = { get ecclevel() { return w; }, set ecclevel(r) { w = r; }, get size() { return _size; }, set size(r) { _size = r; }, get canvas() { return R; }, set canvas(r) { R = r; }, getFrame: function (k) { return (function (k) { var F; var R; var _; var q; var y; var I; var N; var Q; q = k.length; r = 0; do { r++; _ = 4 * (w - 1) + 16 * (r - 1); f = s[_++]; e = s[_++]; a = s[_++]; t = s[_]; if (q <= (_ = a * (f + e) + e - 3 + (r <= 9))) { break; } } while (r < 40); for (o = 17 + 4 * r, y = a + (a + t) * (f + e) + e, q = 0; q < y; q++) { d[q] = 0; } for (v = k.slice(0), q = 0; q < o * o; q++) { h[q] = 0; } for (q = 0; q < (o * (o + 1) + 1) / 2; q++) { b[q] = 0; } for (q = 0; q < 3; q++) { for (_ = 0, R = 0, 1 == q && (_ = o - 7), 2 == q && (R = o - 7), h[R + 3 + o * (_ + 3)] = 1, F = 0; F < 6; F++) { h[R + F + o * _] = 1; h[R + o * (_ + F + 1)] = 1; h[R + 6 + o * (_ + F)] = 1; h[R + F + 1 + o * (_ + 6)] = 1; } for (F = 1; F < 5; F++) { g(R + F, _ + 1); g(R + 1, _ + F + 1); g(R + 5, _ + F); g(R + F + 1, _ + 5); } for (F = 2; F < 4; F++) { h[R + F + o * (_ + 2)] = 1; h[R + 2 + o * (_ + F + 1)] = 1; h[R + 4 + o * (_ + F)] = 1; h[R + F + 1 + o * (_ + 4)] = 1; } } if (r > 1) { for (q = n[r], R = o - 7; ; ) { for (F = o - 7; F > q - 3 && (m(F, R), !(F < q)); ) { F -= q; } if (R <= q + 9) { break; } m(6, (R -= q)); m(R, 6); } } for (h[8 + o * (o - 8)] = 1, R = 0; R < 7; R++) { g(7, R); g(o - 8, R); g(7, R + o - 7); } for (F = 0; F < 8; F++) { g(F, 7); g(F + o - 8, 7); g(F, o - 8); } for (F = 0; F < 9; F++) { g(F, 8); } for (F = 0; F < 8; F++) { g(F + o - 8, 8); g(8, F); } for (R = 0; R < 7; R++) { g(8, R + o - 7); } for (F = 0; F < o - 14; F++) { 1 & F ? (g(8 + F, 6), g(6, 8 + F)) : ((h[8 + F + 6 * o] = 1), (h[6 + o * (8 + F)] = 1)); } if (r > 6) { for (q = c[r - 7], _ = 17, F = 0; F < 6; F++) { for (R = 0; R < 3; R++, _--) { 1 & (_ > 11 ? r >> (_ - 12) : q >> _) ? ((h[5 - F + o * (2 - R + o - 11)] = 1), (h[2 - R + o - 11 + o * (5 - F)] = 1)) : (g(5 - F, 2 - R + o - 11), g(2 - R + o - 11, 5 - F)); } } } for (R = 0; R < o; R++) { for (F = 0; F <= R; F++) { if (h[F + o * R]) { g(F, R); } } } for (y = v.length, I = 0; I < y; I++) { d[I] = v.charCodeAt(I); } v = d.slice(0); if (y >= (F = a * (f + e) + e) - 2) { y = F - 2; if (r > 9) { y--; } } I = y; if (r > 9) { for (v[I + 2] = 0, v[I + 3] = 0; I--; ) { q = v[I]; v[I + 3] |= 255 & (q << 4); v[I + 2] = q >> 4; } v[2] |= 255 & (y << 4); v[1] = y >> 4; v[0] = 64 | (y >> 12); } else { for (v[I + 1] = 0, v[I + 2] = 0; I--; ) { q = v[I]; v[I + 2] |= 255 & (q << 4); v[I + 1] = q >> 4; } v[1] |= 255 & (y << 4); v[0] = 64 | (y >> 4); } for (I = y + 3 - (r < 10); I < F; ) { v[I++] = 236; v[I++] = 17; } for (z[0] = 1, I = 0; I < t; I++) { for (z[I + 1] = 1, N = I; N > 0; N--) { z[N] = z[N] ? z[N - 1] ^ u[x(l[z[N]] + I)] : z[N - 1]; } z[0] = u[x(l[z[0]] + I)]; } for (I = 0; I <= t; I++) { z[I] = l[z[I]]; } for (_ = F, R = 0, I = 0; I < f; I++) { p(R, a, _, t); R += a; _ += t; } for (I = 0; I < e; I++) { p(R, a + 1, _, t); R += a + 1; _ += t; } for (R = 0, I = 0; I < a; I++) { for (N = 0; N < f; N++) { d[R++] = v[I + N * a]; } for (N = 0; N < e; N++) { d[R++] = v[f * a + I + N * (a + 1)]; } } for (N = 0; N < e; N++) { d[R++] = v[f * a + I + N * (a + 1)]; } for (I = 0; I < t; I++) { for (N = 0; N < f + e; N++) { d[R++] = v[F + I + N * t]; } } for (v = d, F = R = o - 1, _ = y = 1, Q = (a + t) * (f + e) + e, I = 0; I < Q; I++) { for (q = v[I], N = 0; N < 8; N++, q <<= 1) { if (128 & q) { h[F + o * R] = 1; } do { y ? F-- : (F++, _ ? (0 != R ? R-- : ((_ = !_), 6 == (F -= 2) && (F--, (R = 9)))) : R != o - 1 ? R++ : ((_ = !_), 6 == (F -= 2) && (F--, (R -= 8)))); y = !y; } while (A(F, R)); } } for (v = h.slice(0), q = 0, R = 30000, _ = 0; _ < 8 && (C(_), (F = M()) < R && ((R = F), (q = _)), 7 != q); _++) { h = v.slice(0); } for (q != _ && C(q), R = i[q + ((w - 1) << 3)], _ = 0; _ < 8; _++, R >>= 1) { if (1 & R) { h[o - 1 - _ + 8 * o] = 1; _ < 6 ? (h[8 + o * _] = 1) : (h[8 + o * (_ + 1)] = 1); } } for (_ = 0; _ < 7; _++, R >>= 1) { if (1 & R) { h[8 + o * (o - 7 + _)] = 1; _ ? (h[6 - _ + 8 * o] = 1) : (h[7 + 8 * o] = 1); } } return h; })(k); }, draw: function (r, f, e, a, t) { w = t || w; if ((f = f || R)) { var n = Math.min(e, a); var c = this.getFrame(r); var i = uni.createContext(); var s = Math.round(n / (o + 8)); var l = s * (o + 8); var u = Math.floor((n - l) / 2); n = l; i.clearRect(0, 0, e, e); i.setFillStyle('#000000'); for (var v = 0; v < o; v++) { for (var d = 0; d < o; d++) { if (c[d * o + v]) { i.rect(s * (4 + v) + u, s * (4 + d) + u, s, s); } } } i.fill(); uni.drawCanvas({ canvasId: f, actions: i.getActions() }); } else { console.warn('No canvas provided to draw QR code in!'); } } }; module.exports = { qrApi: _ }; })();