commit 4ef9886508a71c425d46e0af304098aa681e2e0b Author: DarkCat09 Date: Sat Jul 6 11:36:07 2024 +0400 initial commit diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..d645695 --- /dev/null +++ b/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/index.html b/index.html new file mode 100644 index 0000000..60e588f --- /dev/null +++ b/index.html @@ -0,0 +1,40 @@ + + + + + + QR code data XOR mask + + + + +
+ + + + +
+
+ +
+ + diff --git a/script.js b/script.js new file mode 100644 index 0000000..f6f9c75 --- /dev/null +++ b/script.js @@ -0,0 +1,66 @@ +addEventListener('DOMContentLoaded', () => { + const canvas = document.getElementById("canvas") + const ctx = canvas.getContext("2d") + ctx.fillStyle = "black" + + const options = { + mask: document.getElementById("mask-expr"), + size: document.getElementById("width"), + ver: document.getElementById("version"), + } + + document.getElementById("gen-btn").addEventListener("click", () => { + const mask = options.mask.value + const size = options.size.value + const scale = 40 + + canvas.width = canvas.height = size * scale + + for (let row = 0; row < size; row++) { + for (let col = 0; col < size; col++) { + if (eval(mask) == 0) { + ctx.fillRect(col * scale, row * scale, scale, scale) + } + } + } + }) + + { // Choose best scale for screen height + const height = document.documentElement.clientHeight; + const padding = getComputedStyle(document.body).paddingTop; + // TODO + } + + { // QR version related stuff + const MICRO_4 = 17 // size for version M4, before version 1 + const DIFF = 4 // difference between versions + const MIN_VER = 1 + const MAX_VER = 40 + + const getCodeVersion = () => { + const size = options.size.value + return Math.floor((size - MICRO_4) / DIFF) + } + + const updateSizeVersion = (versionStep) => { + const ver = getCodeVersion() + versionStep + if (ver > MAX_VER || ver < MIN_VER) { + return + } + options.size.value = ver * DIFF + MICRO_4 + options.ver.innerText = ver + } + + document.getElementById("width-incr").addEventListener("click", () => { + updateSizeVersion(+1) + }) + + document.getElementById("width-decr").addEventListener("click", () => { + updateSizeVersion(-1) + }) + + options.size.addEventListener("input", () => { + options.ver.innerText = getCodeVersion() + }) + } +}) diff --git a/style.css b/style.css new file mode 100644 index 0000000..a4d7014 --- /dev/null +++ b/style.css @@ -0,0 +1,40 @@ +body { + margin: 0; + padding: 0.5rem; +} + +#options { + display: flex; + flex-direction: column; + row-gap: 0.25rem; + + width: fit-content; + max-width: calc(100vw - 0.5rem * 2); + margin: auto; +} + +select, input, button { + width: fit-content; + max-width: 100%; + font-size: 1rem; +} + +input[type=number] { + width: calc(1rem * 4 + 0.125rem * 2); +} + +label { + display: flex; + flex-direction: row; + column-gap: 0.25rem; +} + +label#width-wrapper > button { + padding: 0.0625rem 0.25rem; + width: calc(1rem + 0.25rem * 3); +} + +label > span:nth-child(1) { + width: calc(3.5rem); + text-align: right; +}