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@ -1,4 +1,5 @@
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/build/
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/coverage/
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/dist/
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/node_modules/
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**/build/**
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**/coverage/**
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**/dist/**
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**/vendor/**
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**/node_modules/**
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@ -1,5 +1,5 @@
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/build/
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/coverage/
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/local/
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/node_modules/
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/npm-debug.log
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bower_components
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build
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local
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node_modules
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npm-debug.log
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@ -0,0 +1,19 @@
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{
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"name": "jquery-qrcode",
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"description": "Generate QR codes dynamically.",
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"homepage": "https://larsjung.de/jquery-qrcode/",
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"authors": [
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"Lars Jung <lrsjng@gmail.com> (https://larsjung.de)"
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],
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"main": "dist/jquery.qrcode.js",
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"license": "MIT",
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"repository": {
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"type": "git",
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"url": "https://github.com/lrsjng/jquery-qrcode.git"
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},
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"ignore": [
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"*",
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"!dist/*",
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"!*.md"
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]
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}
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Load Diff
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Load Diff
@ -0,0 +1,10 @@
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---
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env:
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browser: true
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rules:
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func-names: 0
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func-style: 0
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no-var: 0
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prefer-arrow-callback: 0
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strict: 0
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Binary file not shown.
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Before Width: | Height: | Size: 1.8 KiB After Width: | Height: | Size: 13 KiB |
@ -1,81 +1,83 @@
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const WIN = global.window;
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const JQ = WIN.jQuery;
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(function () {
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'use strict';
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const GUI_VALUE_PAIRS = [
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['size', 'px'],
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['minversion', ''],
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['quiet', ' modules'],
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['radius', '%'],
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['msize', '%'],
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['mposx', '%'],
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['mposy', '%']
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];
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var $ = jQuery; // eslint-disable-line no-undef
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var guiValuePairs = [
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['size', 'px'],
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['minversion', ''],
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['quiet', ' modules'],
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['radius', '%'],
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['msize', '%'],
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['mposx', '%'],
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['mposy', '%']
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];
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const update_gui = () => {
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JQ.each(GUI_VALUE_PAIRS, (idx, pair) => {
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const $label = JQ('label[for="' + pair[0] + '"]');
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$label.text($label.text().replace(/:.*/, ': ' + JQ('#' + pair[0]).val() + pair[1]));
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});
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};
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function updateGui() {
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$.each(guiValuePairs, function (idx, pair) {
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var $label = $('label[for="' + pair[0] + '"]');
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$label.text($label.text().replace(/:.*/, ': ' + $('#' + pair[0]).val() + pair[1]));
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});
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}
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const update_qrcode = () => {
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const options = {
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render: JQ('#render').val(),
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ecLevel: JQ('#eclevel').val(),
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minVersion: parseInt(JQ('#minversion').val(), 10),
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function updateQrCode() {
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var options = {
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render: $('#render').val(),
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ecLevel: $('#eclevel').val(),
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minVersion: parseInt($('#minversion').val(), 10),
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fill: JQ('#fill').val(),
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background: JQ('#background').val(),
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fill: $('#fill').val(),
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background: $('#background').val(),
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// fill: $('#img-buffer')[0],
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text: JQ('#text').val(),
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size: parseInt(JQ('#size').val(), 10),
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radius: parseInt(JQ('#radius').val(), 10) * 0.01,
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quiet: parseInt(JQ('#quiet').val(), 10),
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text: $('#text').val(),
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size: parseInt($('#size').val(), 10),
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radius: parseInt($('#radius').val(), 10) * 0.01,
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quiet: parseInt($('#quiet').val(), 10),
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mode: parseInt(JQ('#mode').val(), 10),
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mode: parseInt($('#mode').val(), 10),
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mSize: parseInt(JQ('#msize').val(), 10) * 0.01,
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mPosX: parseInt(JQ('#mposx').val(), 10) * 0.01,
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mPosY: parseInt(JQ('#mposy').val(), 10) * 0.01,
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mSize: parseInt($('#msize').val(), 10) * 0.01,
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mPosX: parseInt($('#mposx').val(), 10) * 0.01,
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mPosY: parseInt($('#mposy').val(), 10) * 0.01,
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label: JQ('#label').val(),
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fontname: JQ('#font').val(),
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fontcolor: JQ('#fontcolor').val(),
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label: $('#label').val(),
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fontname: $('#font').val(),
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fontcolor: $('#fontcolor').val(),
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image: JQ('#img-buffer')[0]
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};
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image: $('#img-buffer')[0]
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};
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// options.fill = JQ('#img-buffer')[0];
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// options.fill = 'rgba(255,0,0,0.5)';
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// options.background = JQ('#img-buffer')[0];
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// options.background = 'rgba(255,0,0,0.5)';
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$('#container').empty().qrcode(options);
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}
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JQ('#container').empty().qrcode(options);
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};
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function update() {
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updateGui();
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updateQrCode();
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}
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const update = () => {
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update_gui();
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update_qrcode();
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};
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function onImageInput() {
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var input = $('#image')[0];
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if (input.files && input.files[0]) {
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var reader = new FileReader();
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reader.onload = function (event) {
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$('#img-buffer').attr('src', event.target.result);
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$('#mode').val('4');
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setTimeout(update, 250);
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};
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reader.readAsDataURL(input.files[0]);
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}
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}
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const on_img_input = () => {
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const input = JQ('#image')[0];
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if (input.files && input.files[0]) {
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const reader = new WIN.FileReader();
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reader.onload = event => {
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JQ('#img-buffer').attr('src', event.target.result);
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JQ('#mode').val('4');
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setTimeout(update, 250);
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};
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reader.readAsDataURL(input.files[0]);
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function download() {
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$('#download').attr('href', $('#container canvas')[0].toDataURL('image/png'));
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}
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};
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const init = () => {
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JQ('#image').on('change', on_img_input);
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JQ('input, textarea, select').on('input change', update);
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JQ(WIN).on('load', update);
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update();
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};
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JQ(init);
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$(function () {
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$('#download').on('click', download);
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$('#image').on('change', onImageInput);
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$('input, textarea, select').on('input change', update);
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$(window).load(update);
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update();
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});
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}());
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@ -1,415 +0,0 @@
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const WIN = window; // eslint-disable-line
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const JQ = WIN.jQuery;
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const is_img_el = x => x && typeof x.tagName === 'string' && x.tagName.toUpperCase() === 'IMG';
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// Wrapper for the original QR code generator.
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const create_qrcode = (text, level, version, quiet) => {
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const qr = {};
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const qr_gen = require('qrcode-generator');
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qr_gen.stringToBytes = qr_gen.stringToBytesFuncs['UTF-8'];
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const vqr = qr_gen(version, level);
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vqr.addData(text);
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vqr.make();
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quiet = quiet || 0;
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const module_count = vqr.getModuleCount();
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const quiet_module_count = module_count + 2 * quiet;
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const is_dark = (row, col) => {
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row -= quiet;
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col -= quiet;
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return row >= 0 && row < module_count && col >= 0 && col < module_count && vqr.isDark(row, col);
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};
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const add_blank = (l, t, r, b) => {
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const prev_is_dark = qr.is_dark;
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const module_size = 1 / quiet_module_count;
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qr.is_dark = (row, col) => {
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const ml = col * module_size;
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const mt = row * module_size;
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const mr = ml + module_size;
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const mb = mt + module_size;
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return prev_is_dark(row, col) && (l > mr || ml > r || t > mb || mt > b);
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};
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};
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qr.text = text;
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qr.level = level;
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qr.version = version;
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qr.module_count = quiet_module_count;
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qr.is_dark = is_dark;
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qr.add_blank = add_blank;
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return qr;
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};
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// Returns a minimal QR code for the given text starting with version `min_ver`.
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// Returns `undefined` if `text` is too long to be encoded in `max_ver`.
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const create_min_qrcode = (text, level, min_ver, max_ver, quiet) => {
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min_ver = Math.max(1, min_ver || 1);
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max_ver = Math.min(40, max_ver || 40);
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for (let ver = min_ver; ver <= max_ver; ver += 1) {
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try {
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return create_qrcode(text, level, ver, quiet);
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} catch (err) {/* empty */}
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}
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return undefined;
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};
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const draw_background_label = (qr, ctx, settings) => {
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const size = settings.size;
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const font = 'bold ' + settings.mSize * size + 'px ' + settings.fontname;
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const tmp_ctx = JQ('<canvas/>')[0].getContext('2d');
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tmp_ctx.font = font;
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const w = tmp_ctx.measureText(settings.label).width;
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const sh = settings.mSize;
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const sw = w / size;
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||||
const sl = (1 - sw) * settings.mPosX;
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||||
const st = (1 - sh) * settings.mPosY;
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const sr = sl + sw;
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||||
const sb = st + sh;
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||||
const pad = 0.01;
|
||||
|
||||
if (settings.mode === 1) {
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||||
// Strip
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qr.add_blank(0, st - pad, size, sb + pad);
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||||
} else {
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||||
// Box
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||||
qr.add_blank(sl - pad, st - pad, sr + pad, sb + pad);
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||||
}
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||||
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||||
ctx.fillStyle = settings.fontcolor;
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||||
ctx.font = font;
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||||
ctx.fillText(settings.label, sl * size, st * size + 0.75 * settings.mSize * size);
|
||||
};
|
||||
|
||||
const draw_background_img = (qr, ctx, settings) => {
|
||||
const size = settings.size;
|
||||
const w = settings.image.naturalWidth || 1;
|
||||
const h = settings.image.naturalHeight || 1;
|
||||
const sh = settings.mSize;
|
||||
const sw = sh * w / h;
|
||||
const sl = (1 - sw) * settings.mPosX;
|
||||
const st = (1 - sh) * settings.mPosY;
|
||||
const sr = sl + sw;
|
||||
const sb = st + sh;
|
||||
const pad = 0.01;
|
||||
|
||||
if (settings.mode === 3) {
|
||||
// Strip
|
||||
qr.add_blank(0, st - pad, size, sb + pad);
|
||||
} else {
|
||||
// Box
|
||||
qr.add_blank(sl - pad, st - pad, sr + pad, sb + pad);
|
||||
}
|
||||
|
||||
ctx.drawImage(settings.image, sl * size, st * size, sw * size, sh * size);
|
||||
};
|
||||
|
||||
const draw_background = (qr, ctx, settings) => {
|
||||
if (is_img_el(settings.background)) {
|
||||
ctx.drawImage(settings.background, 0, 0, settings.size, settings.size);
|
||||
} else if (settings.background) {
|
||||
ctx.fillStyle = settings.background;
|
||||
ctx.fillRect(settings.left, settings.top, settings.size, settings.size);
|
||||
}
|
||||
|
||||
const mode = settings.mode;
|
||||
if (mode === 1 || mode === 2) {
|
||||
draw_background_label(qr, ctx, settings);
|
||||
} else if (is_img_el(settings.image) && (mode === 3 || mode === 4)) {
|
||||
draw_background_img(qr, ctx, settings);
|
||||
}
|
||||
};
|
||||
|
||||
const draw_modules_default = (qr, ctx, settings, left, top, width, row, col) => {
|
||||
if (qr.is_dark(row, col)) {
|
||||
ctx.r(left, top, width, width);
|
||||
}
|
||||
};
|
||||
|
||||
const draw_modules_rounded_dark = (ctx, l, t, r, b, rad, nw, ne, se, sw) => {
|
||||
if (nw) {
|
||||
ctx.m(l + rad, t);
|
||||
} else {
|
||||
ctx.m(l, t);
|
||||
}
|
||||
|
||||
if (ne) {
|
||||
ctx.l(r - rad, t).a(r, t, r, b, rad);
|
||||
} else {
|
||||
ctx.l(r, t);
|
||||
}
|
||||
|
||||
if (se) {
|
||||
ctx.l(r, b - rad).a(r, b, l, b, rad);
|
||||
} else {
|
||||
ctx.l(r, b);
|
||||
}
|
||||
|
||||
if (sw) {
|
||||
ctx.l(l + rad, b).a(l, b, l, t, rad);
|
||||
} else {
|
||||
ctx.l(l, b);
|
||||
}
|
||||
|
||||
if (nw) {
|
||||
ctx.l(l, t + rad).a(l, t, r, t, rad);
|
||||
} else {
|
||||
ctx.l(l, t);
|
||||
}
|
||||
};
|
||||
|
||||
const draw_modules_rounded_light = (ctx, l, t, r, b, rad, nw, ne, se, sw) => {
|
||||
if (nw) {
|
||||
ctx.m(l + rad, t).l(l, t).l(l, t + rad).a(l, t, l + rad, t, rad);
|
||||
}
|
||||
|
||||
if (ne) {
|
||||
ctx.m(r - rad, t).l(r, t).l(r, t + rad).a(r, t, r - rad, t, rad);
|
||||
}
|
||||
|
||||
if (se) {
|
||||
ctx.m(r - rad, b).l(r, b).l(r, b - rad).a(r, b, r - rad, b, rad);
|
||||
}
|
||||
|
||||
if (sw) {
|
||||
ctx.m(l + rad, b).l(l, b).l(l, b - rad).a(l, b, l + rad, b, rad);
|
||||
}
|
||||
};
|
||||
|
||||
const draw_modules_rounded = (qr, ctx, settings, left, top, width, row, col) => {
|
||||
const right = left + width;
|
||||
const bottom = top + width;
|
||||
const rad = settings.radius * width;
|
||||
|
||||
const row_n = row - 1;
|
||||
const row_s = row + 1;
|
||||
const col_w = col - 1;
|
||||
const col_e = col + 1;
|
||||
|
||||
const is_dark = qr.is_dark;
|
||||
const d_center = is_dark(row, col);
|
||||
const d_nw = is_dark(row_n, col_w);
|
||||
const d_n = is_dark(row_n, col);
|
||||
const d_ne = is_dark(row_n, col_e);
|
||||
const d_e = is_dark(row, col_e);
|
||||
const d_se = is_dark(row_s, col_e);
|
||||
const d_s = is_dark(row_s, col);
|
||||
const d_sw = is_dark(row_s, col_w);
|
||||
const d_w = is_dark(row, col_w);
|
||||
|
||||
if (d_center) {
|
||||
draw_modules_rounded_dark(ctx, left, top, right, bottom, rad, !d_n && !d_w, !d_n && !d_e, !d_s && !d_e, !d_s && !d_w);
|
||||
} else {
|
||||
draw_modules_rounded_light(ctx, left, top, right, bottom, rad, d_n && d_w && d_nw, d_n && d_e && d_ne, d_s && d_e && d_se, d_s && d_w && d_sw);
|
||||
}
|
||||
};
|
||||
|
||||
const draw_modules = (qr, ctx, settings) => {
|
||||
const module_count = qr.module_count;
|
||||
const module_size = settings.size / module_count;
|
||||
|
||||
let fn = draw_modules_default;
|
||||
if (settings.radius > 0 && settings.radius <= 0.5) {
|
||||
fn = draw_modules_rounded;
|
||||
}
|
||||
|
||||
const draw_ctx = {
|
||||
m(x, y) {ctx.moveTo(x, y); return draw_ctx;},
|
||||
l(x, y) {ctx.lineTo(x, y); return draw_ctx;},
|
||||
a(...args) {ctx.arcTo(...args); return draw_ctx;},
|
||||
r(...args) {ctx.rect(...args); return draw_ctx;}
|
||||
};
|
||||
|
||||
ctx.beginPath();
|
||||
for (let row = 0; row < module_count; row += 1) {
|
||||
for (let col = 0; col < module_count; col += 1) {
|
||||
const l = settings.left + col * module_size;
|
||||
const t = settings.top + row * module_size;
|
||||
const w = module_size;
|
||||
|
||||
fn(qr, draw_ctx, settings, l, t, w, row, col);
|
||||
}
|
||||
}
|
||||
if (is_img_el(settings.fill)) {
|
||||
ctx.strokeStyle = 'rgba(0,0,0,0.5)';
|
||||
ctx.lineWidth = 2;
|
||||
ctx.stroke();
|
||||
const prev = ctx.globalCompositeOperation;
|
||||
ctx.globalCompositeOperation = 'destination-out';
|
||||
ctx.fill();
|
||||
ctx.globalCompositeOperation = prev;
|
||||
|
||||
ctx.clip();
|
||||
ctx.drawImage(settings.fill, 0, 0, settings.size, settings.size);
|
||||
ctx.restore();
|
||||
} else {
|
||||
ctx.fillStyle = settings.fill;
|
||||
ctx.fill();
|
||||
}
|
||||
};
|
||||
|
||||
// Draws QR code to the given `canvas` and returns it.
|
||||
const draw_on_canvas = (canvas, settings) => {
|
||||
const qr = create_min_qrcode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
|
||||
if (!qr) {
|
||||
return null;
|
||||
}
|
||||
|
||||
const $canvas = JQ(canvas).data('qrcode', qr);
|
||||
const ctx = $canvas[0].getContext('2d');
|
||||
|
||||
draw_background(qr, ctx, settings);
|
||||
draw_modules(qr, ctx, settings);
|
||||
|
||||
return $canvas;
|
||||
};
|
||||
|
||||
// Returns a `canvas` element representing the QR code for the given settings.
|
||||
const create_canvas = settings => {
|
||||
const $canvas = JQ('<canvas/>').attr('width', settings.size).attr('height', settings.size);
|
||||
return draw_on_canvas($canvas, settings);
|
||||
};
|
||||
|
||||
// Returns an `image` element representing the QR code for the given settings.
|
||||
const create_img = settings => {
|
||||
return JQ('<img/>').attr('src', create_canvas(settings)[0].toDataURL('image/png'));
|
||||
};
|
||||
|
||||
// Returns a `div` element representing the QR code for the given settings.
|
||||
const create_div = settings => {
|
||||
const qr = create_min_qrcode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
|
||||
if (!qr) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// some shortcuts to improve compression
|
||||
const settings_size = settings.size;
|
||||
const settings_bgColor = settings.background;
|
||||
const math_floor = Math.floor;
|
||||
|
||||
const module_count = qr.module_count;
|
||||
const module_size = math_floor(settings_size / module_count);
|
||||
const offset = math_floor(0.5 * (settings_size - module_size * module_count));
|
||||
|
||||
const container_css = {
|
||||
position: 'relative',
|
||||
left: 0,
|
||||
top: 0,
|
||||
padding: 0,
|
||||
margin: 0,
|
||||
width: settings_size,
|
||||
height: settings_size
|
||||
};
|
||||
const dark_css = {
|
||||
position: 'absolute',
|
||||
padding: 0,
|
||||
margin: 0,
|
||||
width: module_size,
|
||||
height: module_size,
|
||||
'background-color': settings.fill
|
||||
};
|
||||
|
||||
const $div = JQ('<div/>').data('qrcode', qr).css(container_css);
|
||||
|
||||
if (settings_bgColor) {
|
||||
$div.css('background-color', settings_bgColor);
|
||||
}
|
||||
|
||||
for (let row = 0; row < module_count; row += 1) {
|
||||
for (let col = 0; col < module_count; col += 1) {
|
||||
if (qr.is_dark(row, col)) {
|
||||
JQ('<div/>')
|
||||
.css(dark_css)
|
||||
.css({
|
||||
left: offset + col * module_size,
|
||||
top: offset + row * module_size
|
||||
})
|
||||
.appendTo($div);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $div;
|
||||
};
|
||||
|
||||
const create_html = settings => {
|
||||
if (settings.render === 'canvas') {
|
||||
return create_canvas(settings);
|
||||
} else if (settings.render === 'image') {
|
||||
return create_img(settings);
|
||||
}
|
||||
|
||||
return create_div(settings);
|
||||
};
|
||||
|
||||
const DEFAULTS = {
|
||||
// render method: `'canvas'`, `'image'` or `'div'`
|
||||
render: 'canvas',
|
||||
|
||||
// version range somewhere in 1 .. 40
|
||||
minVersion: 1,
|
||||
maxVersion: 40,
|
||||
|
||||
// error correction level: `'L'`, `'M'`, `'Q'` or `'H'`
|
||||
ecLevel: 'L',
|
||||
|
||||
// offset in pixel if drawn onto existing canvas
|
||||
left: 0,
|
||||
top: 0,
|
||||
|
||||
// size in pixel
|
||||
size: 200,
|
||||
|
||||
// code color or image element
|
||||
fill: '#000',
|
||||
|
||||
// background color or image element, `null` for transparent background
|
||||
background: '#fff',
|
||||
|
||||
// content
|
||||
text: 'no text',
|
||||
|
||||
// corner radius relative to module width: 0.0 .. 0.5
|
||||
radius: 0,
|
||||
|
||||
// quiet zone in modules
|
||||
quiet: 0,
|
||||
|
||||
// modes
|
||||
// 0: normal
|
||||
// 1: label strip
|
||||
// 2: label box
|
||||
// 3: image strip
|
||||
// 4: image box
|
||||
mode: 0,
|
||||
|
||||
mSize: 0.1,
|
||||
mPosX: 0.5,
|
||||
mPosY: 0.5,
|
||||
|
||||
label: 'no label',
|
||||
fontname: 'sans',
|
||||
fontcolor: '#000',
|
||||
|
||||
image: null
|
||||
};
|
||||
|
||||
JQ.fn.qrcode = module.exports = function main(options) {
|
||||
const settings = JQ.extend({}, DEFAULTS, options);
|
||||
|
||||
return this.each((idx, el) => {
|
||||
if (el.nodeName.toLowerCase() === 'canvas') {
|
||||
draw_on_canvas(el, settings);
|
||||
} else {
|
||||
JQ(el).append(create_html(settings));
|
||||
}
|
||||
});
|
||||
};
|
||||
@ -0,0 +1,446 @@
|
||||
(function (vendor_qrcode) {
|
||||
'use strict';
|
||||
|
||||
var $ = jQuery; // eslint-disable-line no-undef
|
||||
|
||||
// Wrapper for the original QR code generator.
|
||||
function QRCode(text, level, version, quiet) {
|
||||
var qr = vendor_qrcode(version, level);
|
||||
qr.addData(text);
|
||||
qr.make();
|
||||
|
||||
quiet = quiet || 0;
|
||||
|
||||
var qrModuleCount = qr.getModuleCount();
|
||||
var quietModuleCount = qr.getModuleCount() + 2 * quiet;
|
||||
|
||||
function isDark(row, col) {
|
||||
row -= quiet;
|
||||
col -= quiet;
|
||||
|
||||
if (row < 0 || row >= qrModuleCount || col < 0 || col >= qrModuleCount) {
|
||||
return false;
|
||||
}
|
||||
|
||||
return qr.isDark(row, col);
|
||||
}
|
||||
|
||||
var addBlank = function (l, t, r, b) {
|
||||
var prevIsDark = this.isDark; // eslint-disable-line no-invalid-this
|
||||
var moduleSize = 1 / quietModuleCount;
|
||||
|
||||
this.isDark = function (row, col) { // eslint-disable-line no-invalid-this
|
||||
var ml = col * moduleSize;
|
||||
var mt = row * moduleSize;
|
||||
var mr = ml + moduleSize;
|
||||
var mb = mt + moduleSize;
|
||||
|
||||
return prevIsDark(row, col) && (l > mr || ml > r || t > mb || mt > b);
|
||||
};
|
||||
};
|
||||
|
||||
this.text = text;
|
||||
this.level = level;
|
||||
this.version = version;
|
||||
this.moduleCount = quietModuleCount;
|
||||
this.isDark = isDark;
|
||||
this.addBlank = addBlank;
|
||||
}
|
||||
|
||||
// Check if canvas is available in the browser (as Modernizr does)
|
||||
var hasCanvas = (function () {
|
||||
var elem = document.createElement('canvas');
|
||||
return Boolean(elem.getContext && elem.getContext('2d'));
|
||||
}());
|
||||
|
||||
// Returns a minimal QR code for the given text starting with version `minVersion`.
|
||||
// Returns `undefined` if `text` is too long to be encoded in `maxVersion`.
|
||||
function createQRCode(text, level, minVersion, maxVersion, quiet) {
|
||||
minVersion = Math.max(1, minVersion || 1);
|
||||
maxVersion = Math.min(40, maxVersion || 40);
|
||||
for (var version = minVersion; version <= maxVersion; version += 1) {
|
||||
try {
|
||||
return new QRCode(text, level, version, quiet);
|
||||
} catch (err) {/* empty */}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
function drawBackgroundLabel(qr, context, settings) {
|
||||
var size = settings.size;
|
||||
var font = 'bold ' + (settings.mSize * size) + 'px ' + settings.fontname;
|
||||
var ctx = $('<canvas/>')[0].getContext('2d');
|
||||
|
||||
ctx.font = font;
|
||||
|
||||
var w = ctx.measureText(settings.label).width;
|
||||
var sh = settings.mSize;
|
||||
var sw = w / size;
|
||||
var sl = (1 - sw) * settings.mPosX;
|
||||
var st = (1 - sh) * settings.mPosY;
|
||||
var sr = sl + sw;
|
||||
var sb = st + sh;
|
||||
var pad = 0.01;
|
||||
|
||||
if (settings.mode === 1) {
|
||||
// Strip
|
||||
qr.addBlank(0, st - pad, size, sb + pad);
|
||||
} else {
|
||||
// Box
|
||||
qr.addBlank(sl - pad, st - pad, sr + pad, sb + pad);
|
||||
}
|
||||
|
||||
context.fillStyle = settings.fontcolor;
|
||||
context.font = font;
|
||||
context.fillText(settings.label, sl * size, st * size + 0.75 * settings.mSize * size);
|
||||
}
|
||||
|
||||
function drawBackgroundImage(qr, context, settings) {
|
||||
var size = settings.size;
|
||||
var w = settings.image.naturalWidth || 1;
|
||||
var h = settings.image.naturalHeight || 1;
|
||||
var sh = settings.mSize;
|
||||
var sw = sh * w / h;
|
||||
var sl = (1 - sw) * settings.mPosX;
|
||||
var st = (1 - sh) * settings.mPosY;
|
||||
var sr = sl + sw;
|
||||
var sb = st + sh;
|
||||
var pad = 0.01;
|
||||
|
||||
if (settings.mode === 3) {
|
||||
// Strip
|
||||
qr.addBlank(0, st - pad, size, sb + pad);
|
||||
} else {
|
||||
// Box
|
||||
qr.addBlank(sl - pad, st - pad, sr + pad, sb + pad);
|
||||
}
|
||||
|
||||
context.drawImage(settings.image, sl * size, st * size, sw * size, sh * size);
|
||||
}
|
||||
|
||||
function drawBackground(qr, context, settings) {
|
||||
if ($(settings.background).is('img')) {
|
||||
context.drawImage(settings.background, 0, 0, settings.size, settings.size);
|
||||
} else if (settings.background) {
|
||||
context.fillStyle = settings.background;
|
||||
context.fillRect(settings.left, settings.top, settings.size, settings.size);
|
||||
}
|
||||
|
||||
var mode = settings.mode;
|
||||
if (mode === 1 || mode === 2) {
|
||||
drawBackgroundLabel(qr, context, settings);
|
||||
} else if (mode === 3 || mode === 4) {
|
||||
drawBackgroundImage(qr, context, settings);
|
||||
}
|
||||
}
|
||||
|
||||
function drawModuleDefault(qr, context, settings, left, top, width, row, col) {
|
||||
if (qr.isDark(row, col)) {
|
||||
context.rect(left, top, width, width);
|
||||
}
|
||||
}
|
||||
|
||||
function drawModuleRoundedDark(ctx, l, t, r, b, rad, nw, ne, se, sw) {
|
||||
if (nw) {
|
||||
ctx.moveTo(l + rad, t);
|
||||
} else {
|
||||
ctx.moveTo(l, t);
|
||||
}
|
||||
|
||||
if (ne) {
|
||||
ctx.lineTo(r - rad, t);
|
||||
ctx.arcTo(r, t, r, b, rad);
|
||||
} else {
|
||||
ctx.lineTo(r, t);
|
||||
}
|
||||
|
||||
if (se) {
|
||||
ctx.lineTo(r, b - rad);
|
||||
ctx.arcTo(r, b, l, b, rad);
|
||||
} else {
|
||||
ctx.lineTo(r, b);
|
||||
}
|
||||
|
||||
if (sw) {
|
||||
ctx.lineTo(l + rad, b);
|
||||
ctx.arcTo(l, b, l, t, rad);
|
||||
} else {
|
||||
ctx.lineTo(l, b);
|
||||
}
|
||||
|
||||
if (nw) {
|
||||
ctx.lineTo(l, t + rad);
|
||||
ctx.arcTo(l, t, r, t, rad);
|
||||
} else {
|
||||
ctx.lineTo(l, t);
|
||||
}
|
||||
}
|
||||
|
||||
function drawModuleRoundendLight(ctx, l, t, r, b, rad, nw, ne, se, sw) {
|
||||
if (nw) {
|
||||
ctx.moveTo(l + rad, t);
|
||||
ctx.lineTo(l, t);
|
||||
ctx.lineTo(l, t + rad);
|
||||
ctx.arcTo(l, t, l + rad, t, rad);
|
||||
}
|
||||
|
||||
if (ne) {
|
||||
ctx.moveTo(r - rad, t);
|
||||
ctx.lineTo(r, t);
|
||||
ctx.lineTo(r, t + rad);
|
||||
ctx.arcTo(r, t, r - rad, t, rad);
|
||||
}
|
||||
|
||||
if (se) {
|
||||
ctx.moveTo(r - rad, b);
|
||||
ctx.lineTo(r, b);
|
||||
ctx.lineTo(r, b - rad);
|
||||
ctx.arcTo(r, b, r - rad, b, rad);
|
||||
}
|
||||
|
||||
if (sw) {
|
||||
ctx.moveTo(l + rad, b);
|
||||
ctx.lineTo(l, b);
|
||||
ctx.lineTo(l, b - rad);
|
||||
ctx.arcTo(l, b, l + rad, b, rad);
|
||||
}
|
||||
}
|
||||
|
||||
function drawModuleRounded(qr, context, settings, left, top, width, row, col) {
|
||||
var isDark = qr.isDark;
|
||||
var right = left + width;
|
||||
var bottom = top + width;
|
||||
var radius = settings.radius * width;
|
||||
var rowT = row - 1;
|
||||
var rowB = row + 1;
|
||||
var colL = col - 1;
|
||||
var colR = col + 1;
|
||||
var center = isDark(row, col);
|
||||
var northwest = isDark(rowT, colL);
|
||||
var north = isDark(rowT, col);
|
||||
var northeast = isDark(rowT, colR);
|
||||
var east = isDark(row, colR);
|
||||
var southeast = isDark(rowB, colR);
|
||||
var south = isDark(rowB, col);
|
||||
var southwest = isDark(rowB, colL);
|
||||
var west = isDark(row, colL);
|
||||
|
||||
if (center) {
|
||||
drawModuleRoundedDark(context, left, top, right, bottom, radius, !north && !west, !north && !east, !south && !east, !south && !west);
|
||||
} else {
|
||||
drawModuleRoundendLight(context, left, top, right, bottom, radius, north && west && northwest, north && east && northeast, south && east && southeast, south && west && southwest);
|
||||
}
|
||||
}
|
||||
|
||||
function drawModules(qr, context, settings) {
|
||||
var moduleCount = qr.moduleCount;
|
||||
var moduleSize = settings.size / moduleCount;
|
||||
var fn = drawModuleDefault;
|
||||
var row;
|
||||
var col;
|
||||
|
||||
if (settings.radius > 0 && settings.radius <= 0.5) {
|
||||
fn = drawModuleRounded;
|
||||
}
|
||||
|
||||
context.beginPath();
|
||||
for (row = 0; row < moduleCount; row += 1) {
|
||||
for (col = 0; col < moduleCount; col += 1) {
|
||||
var l = settings.left + col * moduleSize;
|
||||
var t = settings.top + row * moduleSize;
|
||||
var w = moduleSize;
|
||||
|
||||
fn(qr, context, settings, l, t, w, row, col);
|
||||
}
|
||||
}
|
||||
if ($(settings.fill).is('img')) {
|
||||
context.strokeStyle = 'rgba(0,0,0,0.5)';
|
||||
context.lineWidth = 2;
|
||||
context.stroke();
|
||||
var prev = context.globalCompositeOperation;
|
||||
context.globalCompositeOperation = 'destination-out';
|
||||
context.fill();
|
||||
context.globalCompositeOperation = prev;
|
||||
|
||||
context.clip();
|
||||
context.drawImage(settings.fill, 0, 0, settings.size, settings.size);
|
||||
context.restore();
|
||||
} else {
|
||||
context.fillStyle = settings.fill;
|
||||
context.fill();
|
||||
}
|
||||
}
|
||||
|
||||
// Draws QR code to the given `canvas` and returns it.
|
||||
function drawOnCanvas(canvas, settings) {
|
||||
var qr = createQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
|
||||
if (!qr) {
|
||||
return null;
|
||||
}
|
||||
|
||||
var $canvas = $(canvas).data('qrcode', qr);
|
||||
var context = $canvas[0].getContext('2d');
|
||||
|
||||
drawBackground(qr, context, settings);
|
||||
drawModules(qr, context, settings);
|
||||
|
||||
return $canvas;
|
||||
}
|
||||
|
||||
// Returns a `canvas` element representing the QR code for the given settings.
|
||||
function createCanvas(settings) {
|
||||
var $canvas = $('<canvas/>').attr('width', settings.size).attr('height', settings.size);
|
||||
return drawOnCanvas($canvas, settings);
|
||||
}
|
||||
|
||||
// Returns an `image` element representing the QR code for the given settings.
|
||||
function createImage(settings) {
|
||||
return $('<img/>').attr('src', createCanvas(settings)[0].toDataURL('image/png'));
|
||||
}
|
||||
|
||||
// Returns a `div` element representing the QR code for the given settings.
|
||||
function createDiv(settings) {
|
||||
var qr = createQRCode(settings.text, settings.ecLevel, settings.minVersion, settings.maxVersion, settings.quiet);
|
||||
if (!qr) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// some shortcuts to improve compression
|
||||
var settings_size = settings.size;
|
||||
var settings_bgColor = settings.background;
|
||||
var math_floor = Math.floor;
|
||||
|
||||
var moduleCount = qr.moduleCount;
|
||||
var moduleSize = math_floor(settings_size / moduleCount);
|
||||
var offset = math_floor(0.5 * (settings_size - moduleSize * moduleCount));
|
||||
|
||||
var row;
|
||||
var col;
|
||||
|
||||
var containerCSS = {
|
||||
position: 'relative',
|
||||
left: 0,
|
||||
top: 0,
|
||||
padding: 0,
|
||||
margin: 0,
|
||||
width: settings_size,
|
||||
height: settings_size
|
||||
};
|
||||
var darkCSS = {
|
||||
position: 'absolute',
|
||||
padding: 0,
|
||||
margin: 0,
|
||||
width: moduleSize,
|
||||
height: moduleSize,
|
||||
'background-color': settings.fill
|
||||
};
|
||||
|
||||
var $div = $('<div/>').data('qrcode', qr).css(containerCSS);
|
||||
|
||||
if (settings_bgColor) {
|
||||
$div.css('background-color', settings_bgColor);
|
||||
}
|
||||
|
||||
for (row = 0; row < moduleCount; row += 1) {
|
||||
for (col = 0; col < moduleCount; col += 1) {
|
||||
if (qr.isDark(row, col)) {
|
||||
$('<div/>')
|
||||
.css(darkCSS)
|
||||
.css({
|
||||
left: offset + col * moduleSize,
|
||||
top: offset + row * moduleSize
|
||||
})
|
||||
.appendTo($div);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $div;
|
||||
}
|
||||
|
||||
function createHTML(settings) {
|
||||
if (hasCanvas && settings.render === 'canvas') {
|
||||
return createCanvas(settings);
|
||||
} else if (hasCanvas && settings.render === 'image') {
|
||||
return createImage(settings);
|
||||
}
|
||||
|
||||
return createDiv(settings);
|
||||
}
|
||||
|
||||
// Plugin
|
||||
// ======
|
||||
|
||||
// Default settings
|
||||
// ----------------
|
||||
var defaults = {
|
||||
// render method: `'canvas'`, `'image'` or `'div'`
|
||||
render: 'canvas',
|
||||
|
||||
// version range somewhere in 1 .. 40
|
||||
minVersion: 1,
|
||||
maxVersion: 40,
|
||||
|
||||
// error correction level: `'L'`, `'M'`, `'Q'` or `'H'`
|
||||
ecLevel: 'L',
|
||||
|
||||
// offset in pixel if drawn onto existing canvas
|
||||
left: 0,
|
||||
top: 0,
|
||||
|
||||
// size in pixel
|
||||
size: 200,
|
||||
|
||||
// code color or image element
|
||||
fill: '#000',
|
||||
|
||||
// background color or image element, `null` for transparent background
|
||||
background: null,
|
||||
|
||||
// content
|
||||
text: 'no text',
|
||||
|
||||
// corner radius relative to module width: 0.0 .. 0.5
|
||||
radius: 0,
|
||||
|
||||
// quiet zone in modules
|
||||
quiet: 0,
|
||||
|
||||
// modes
|
||||
// 0: normal
|
||||
// 1: label strip
|
||||
// 2: label box
|
||||
// 3: image strip
|
||||
// 4: image box
|
||||
mode: 0,
|
||||
|
||||
mSize: 0.1,
|
||||
mPosX: 0.5,
|
||||
mPosY: 0.5,
|
||||
|
||||
label: 'no label',
|
||||
fontname: 'sans',
|
||||
fontcolor: '#000',
|
||||
|
||||
image: null
|
||||
};
|
||||
|
||||
// Register the plugin
|
||||
// -------------------
|
||||
$.fn.qrcode = function (options) {
|
||||
var settings = $.extend({}, defaults, options);
|
||||
|
||||
return this.each(function () {
|
||||
if (this.nodeName.toLowerCase() === 'canvas') { // eslint-disable-line no-invalid-this
|
||||
drawOnCanvas(this, settings); // eslint-disable-line no-invalid-this
|
||||
} else {
|
||||
$(this).append(createHTML(settings)); // eslint-disable-line no-invalid-this
|
||||
}
|
||||
});
|
||||
};
|
||||
}(function () {
|
||||
// `qrcode` is the single public function defined by the `QR Code Generator`
|
||||
// @include "../vendor/qrcode.js"
|
||||
// @include "../vendor/qrcode_UTF8.js"
|
||||
return qrcode; // eslint-disable-line no-undef
|
||||
}()));
|
||||
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Load Diff
@ -0,0 +1,59 @@
|
||||
//---------------------------------------------------------------------
|
||||
//
|
||||
// QR Code Generator for JavaScript UTF8 Support (optional)
|
||||
//
|
||||
// Copyright (c) 2011 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(qrcode) {
|
||||
|
||||
//---------------------------------------------------------------------
|
||||
// overwrite qrcode.stringToBytes
|
||||
//---------------------------------------------------------------------
|
||||
|
||||
qrcode.stringToBytes = function(s) {
|
||||
// http://stackoverflow.com/questions/18729405/how-to-convert-utf8-string-to-byte-array
|
||||
function toUTF8Array(str) {
|
||||
var utf8 = [];
|
||||
for (var i=0; i < str.length; i++) {
|
||||
var charcode = str.charCodeAt(i);
|
||||
if (charcode < 0x80) utf8.push(charcode);
|
||||
else if (charcode < 0x800) {
|
||||
utf8.push(0xc0 | (charcode >> 6),
|
||||
0x80 | (charcode & 0x3f));
|
||||
}
|
||||
else if (charcode < 0xd800 || charcode >= 0xe000) {
|
||||
utf8.push(0xe0 | (charcode >> 12),
|
||||
0x80 | ((charcode>>6) & 0x3f),
|
||||
0x80 | (charcode & 0x3f));
|
||||
}
|
||||
// surrogate pair
|
||||
else {
|
||||
i++;
|
||||
// UTF-16 encodes 0x10000-0x10FFFF by
|
||||
// subtracting 0x10000 and splitting the
|
||||
// 20 bits of 0x0-0xFFFFF into two halves
|
||||
charcode = 0x10000 + (((charcode & 0x3ff)<<10)
|
||||
| (str.charCodeAt(i) & 0x3ff));
|
||||
utf8.push(0xf0 | (charcode >>18),
|
||||
0x80 | ((charcode>>12) & 0x3f),
|
||||
0x80 | ((charcode>>6) & 0x3f),
|
||||
0x80 | (charcode & 0x3f));
|
||||
}
|
||||
}
|
||||
return utf8;
|
||||
}
|
||||
return toUTF8Array(s);
|
||||
};
|
||||
|
||||
}(qrcode);
|
||||
Loading…
Reference in New Issue