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+<!DOCTYPE html>
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+<html class="writer-html5" lang="en" >
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+<head>
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+ <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
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+
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0" />
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+ <title>Custom QROutputInterface — PHP-QRCode main
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+ Manual</title>
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+ <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
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+ <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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+ <!--[if lt IE 9]>
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+ <script src="../_static/js/html5shiv.min.js"></script>
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+ <![endif]-->
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+
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+ <script src="../_static/jquery.js?v=5d32c60e"></script>
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+ <script src="../_static/_sphinx_javascript_frameworks_compat.js?v=2cd50e6c"></script>
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+ <script src="../_static/documentation_options.js?v=a8da1a53"></script>
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+ <script src="../_static/doctools.js?v=888ff710"></script>
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+ <script src="../_static/sphinx_highlight.js?v=dc90522c"></script>
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+ <script src="../_static/js/theme.js"></script>
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+ <link rel="index" title="Index" href="../genindex.html" />
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+ <link rel="search" title="Search" href="../search.html" />
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+ <link rel="next" title="QREps" href="../Built-In-Output/QREps.html" />
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+ <link rel="prev" title="QROutputAbstract" href="QROutputAbstract.html" />
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+</head>
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+
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+<body class="wy-body-for-nav">
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+ <div class="wy-grid-for-nav">
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+ <nav data-toggle="wy-nav-shift" class="wy-nav-side">
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+ <div class="wy-side-scroll">
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+ <div class="wy-side-nav-search" >
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+
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+
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+
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+ <a href="../index.html" class="icon icon-home">
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+ PHP-QRCode
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+ </a>
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+<div role="search">
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+ <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
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+ <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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+ <input type="hidden" name="check_keywords" value="yes" />
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+ <input type="hidden" name="area" value="default" />
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+ </form>
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+</div>
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+ </div><div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu">
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+ <p class="caption" role="heading"><span class="caption-text">Usage</span></p>
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+<ul>
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+<li class="toctree-l1"><a class="reference internal" href="../Usage/Overview.html">Overview</a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Overview.html#features">Features</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Overview.html#requirements">Requirements</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Overview.html#framework-integration">Framework Integration</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Overview.html#shameless-advertising">Shameless advertising</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l1"><a class="reference internal" href="../Usage/Installation.html">Installation</a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Installation.html#installation-with-composer">Installation with Composer</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Installation.html#composer-json">composer.json</a><ul>
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+<li class="toctree-l4"><a class="reference internal" href="../Usage/Installation.html#version-switch">Version switch</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Installation.html#terminal">Terminal</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Installation.html#manual-installation">Manual installation</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Installation.html#can-i-use-this-library-without-using-composer">Can i use this library without using composer?</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Installation.html#supported-php-versions-extension-requirements">Supported PHP versions & extension requirements</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Installation.html#imagemagick">ImageMagick</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l1"><a class="reference internal" href="../Usage/Quickstart.html">Quickstart</a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Quickstart.html#import-the-library">Import the library</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Quickstart.html#create-your-first-qr-code">Create your first QR Code</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Quickstart.html#configuration">Configuration</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Quickstart.html#reading-qr-codes">Reading QR Codes</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Quickstart.html#notes">Notes</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l1"><a class="reference internal" href="../Usage/Advanced-usage.html">Advanced usage</a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Advanced-usage.html#configuration-via-qroptions">Configuration via <code class="docutils literal notranslate"><span class="pre">QROptions</span></code></a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#supply-an-iterable-of-options">Supply an <code class="docutils literal notranslate"><span class="pre">iterable</span></code> of options</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#load-and-save-options-from-to-json">Load and save options from/to JSON</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#extending-the-qroptions-class">Extending the <code class="docutils literal notranslate"><span class="pre">QROptions</span></code> class</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Advanced-usage.html#qrcode-methods"><code class="docutils literal notranslate"><span class="pre">QRCode</span></code> methods</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#render-a-qrmatrix-instance">Render a <code class="docutils literal notranslate"><span class="pre">QRMatrix</span></code> instance</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#mixed-mode">Mixed mode</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#qr-code-reader">QR Code reader</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Advanced-usage.html#common-output-options">Common output options</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#save-to-file">Save to file</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#base64-uri-output">Base64 URI output</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#return-the-image-resource">Return the image resource</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="../Usage/Advanced-usage.html#add-a-logo-space">Add a logo space</a></li>
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+</ul>
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+</li>
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+</ul>
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+</li>
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+<li class="toctree-l1"><a class="reference internal" href="../Usage/Configuration-settings.html">Configuration settings</a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#version">version</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#versionmin">versionMin</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#versionmax">versionMax</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#ecclevel">eccLevel</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#maskpattern">maskPattern</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#addquietzone">addQuietzone</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#quietzonesize">quietzoneSize</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#outputtype">outputType</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#outputinterface">outputInterface</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#returnresource">returnResource</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#cachefile">cachefile</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#outputbase64">outputBase64</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#eol">eol</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#bgcolor">bgColor</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#invertmatrix">invertMatrix</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#drawlightmodules">drawLightModules</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#drawcircularmodules">drawCircularModules</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#circleradius">circleRadius</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#keepassquare">keepAsSquare</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#connectpaths">connectPaths</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#excludefromconnect">excludeFromConnect</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#modulevalues">moduleValues</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#addlogospace">addLogoSpace</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#logospacewidth">logoSpaceWidth</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#logospaceheight">logoSpaceHeight</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#logospacestartx">logoSpaceStartX</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#logospacestarty">logoSpaceStartY</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#scale">scale</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#imagetransparent">imageTransparent</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#transparencycolor">transparencyColor</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#quality">quality</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#gdimageuseupscale">gdImageUseUpscale</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#imagickformat">imagickFormat</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#cssclass">cssClass</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#svgaddxmlheader">svgAddXmlHeader</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#svgdefs">svgDefs</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#svgpreserveaspectratio">svgPreserveAspectRatio</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#svgusefillattributes">svgUseFillAttributes</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#textlinestart">textLineStart</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#jsonflags">jsonFlags</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#jsonasbooleans">jsonAsBooleans</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#fpdfmeasureunit">fpdfMeasureUnit</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#readeruseimagickifavailable">readerUseImagickIfAvailable</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#readergrayscale">readerGrayscale</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#readerinvertcolors">readerInvertColors</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#readerincreasecontrast">readerIncreaseContrast</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#imagebase64">imageBase64</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#jpegquality">jpegQuality</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#pngcompression">pngCompression</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#imagetransparencybg">imageTransparencyBG</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../Usage/Configuration-settings.html#imagickbg">imagickBG</a></li>
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+</ul>
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+</li>
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+</ul>
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+<p class="caption" role="heading"><span class="caption-text">Customizing output</span></p>
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+<ul class="current">
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+<li class="toctree-l1"><a class="reference internal" href="Module-Values.html">Module values</a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="Module-Values.html#basics">Basics</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="Module-Values.html#assigning-values">Assigning values</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="Module-Values.html#handling-in-your-own-qroutputinterface">Handling in your own <code class="docutils literal notranslate"><span class="pre">QROutputInterface</span></code></a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="Module-Values.html#setting-module-values">Setting module values</a></li>
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+<li class="toctree-l3"><a class="reference internal" href="Module-Values.html#using-the-module-values">Using the module values</a></li>
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+</ul>
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+</li>
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+</ul>
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+</li>
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+<li class="toctree-l1"><a class="reference internal" href="QROutputAbstract.html"><code class="docutils literal notranslate"><span class="pre">QROutputAbstract</span></code></a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="QROutputAbstract.html#properties">Properties</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#options-and-matrix"><code class="docutils literal notranslate"><span class="pre">$options</span></code> and <code class="docutils literal notranslate"><span class="pre">$matrix</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#modulecount-scale-and-length"><code class="docutils literal notranslate"><span class="pre">$moduleCount</span></code>, <code class="docutils literal notranslate"><span class="pre">$scale</span></code> and <code class="docutils literal notranslate"><span class="pre">$length</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#modulevalues"><code class="docutils literal notranslate"><span class="pre">$moduleValues</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#copies-of-qroptions-values">Copies of <code class="docutils literal notranslate"><span class="pre">QROptions</span></code> values</a></li>
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+</ul>
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+</li>
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+<li class="toctree-l2"><a class="reference internal" href="QROutputAbstract.html#methods">Methods</a><ul>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#setmodulevalues"><code class="docutils literal notranslate"><span class="pre">setModuleValues()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#modulevalueisvalid"><code class="docutils literal notranslate"><span class="pre">moduleValueIsValid()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#preparemodulevalue"><code class="docutils literal notranslate"><span class="pre">prepareModuleValue()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#getdefaultmodulevalue"><code class="docutils literal notranslate"><span class="pre">getDefaultModuleValue()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#getmodulevalue-and-getmodulevalueat"><code class="docutils literal notranslate"><span class="pre">getModuleValue()</span></code> and <code class="docutils literal notranslate"><span class="pre">getModuleValueAt()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#setmatrixdimensions"><code class="docutils literal notranslate"><span class="pre">setMatrixDimensions()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#getoutputdimensions"><code class="docutils literal notranslate"><span class="pre">getOutputDimensions()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#collectmodules"><code class="docutils literal notranslate"><span class="pre">collectModules()</span></code></a></li>
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+<li class="toctree-l3"><a class="reference internal" href="QROutputAbstract.html#savetofile-and-tobase64datauri"><code class="docutils literal notranslate"><span class="pre">saveToFile()</span></code> and <code class="docutils literal notranslate"><span class="pre">toBase64DataURI()</span></code></a></li>
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+</ul>
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+</li>
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+</ul>
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+</li>
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+<li class="toctree-l1 current"><a class="current reference internal" href="#">Custom <code class="docutils literal notranslate"><span class="pre">QROutputInterface</span></code></a><ul>
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+<li class="toctree-l2"><a class="reference internal" href="#class-skeleton">Class skeleton</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="#module-values">Module values</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="#transform-the-output">Transform the output</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="#run-the-custom-output">Run the custom output</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="#summary">Summary</a></li>
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+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+<p class="caption" role="heading"><span class="caption-text">Built-In Output Modules</span></p>
|
|
|
+<ul>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QREps.html">QREps</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QREps.html#example">Example</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QREps.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QREps.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QREps.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QRFpdf.html">QRFpdf</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRFpdf.html#example">Example</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRFpdf.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRFpdf.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QRFpdf.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QRGdImage.html">QRGdImage</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRGdImage.html#example">Example</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRGdImage.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRGdImage.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QRGdImage.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QRImagick.html">QRImagick</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRImagick.html#example">Example</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRImagick.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRImagick.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QRImagick.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QRMarkupHTML.html">QRMarkupHTML</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRMarkupHTML.html#example">Example</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRMarkupHTML.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRMarkupHTML.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QRMarkupHTML.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QRMarkupSVG.html">QRMarkupSVG</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRMarkupSVG.html#example">Example</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRMarkupSVG.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRMarkupSVG.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QRMarkupSVG.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Built-In-Output/QRString.html">QRString</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRString.html#plain-text">Plain text</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRString.html#json">JSON</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRString.html#additional-methods">Additional methods</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Built-In-Output/QRString.html#options-that-affect-this-module">Options that affect this module</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Built-In-Output/QRString.html#options-that-have-no-effect">Options that have no effect</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+</ul>
|
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|
+</li>
|
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+</ul>
|
|
|
+<p class="caption" role="heading"><span class="caption-text">Appendix</span></p>
|
|
|
+<ul>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Appendix/Terminology.html">Terminology</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#qr-code">QR Code</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#matrix">Matrix</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#module">Module</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#version">Version</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#function-patterns">Function Patterns</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#finder-pattern">Finder Pattern</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#alignment-pattern">Alignment Pattern</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#timing-pattern">Timing Pattern</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#separators">Separators</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#quiet-zone">Quiet Zone</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#encoding-region">Encoding Region</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#data">Data</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#version-information">Version Information</a></li>
|
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|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#format-information">Format Information</a></li>
|
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|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#darkmodule">Darkmodule</a></li>
|
|
|
+</ul>
|
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+</li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#mode">Mode</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#segment">Segment</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#extended-channel-interpretation-eci">Extended Channel Interpretation (ECI)</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#mixed-mode">Mixed Mode</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#ecc-error-correction-coding">ECC (Error Correction Coding)</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#ecc-level">ECC Level</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#maximum-data-capacity">Maximum data capacity</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#data-masking">Data masking</a><ul>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#evaluation">Evaluation</a></li>
|
|
|
+<li class="toctree-l3"><a class="reference internal" href="../Appendix/Terminology.html#mask-pattern">Mask pattern</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Terminology.html#reflectance">Reflectance</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Appendix/URI-Content.html">Popular content and URI schemes</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#url-https">URL <code class="docutils literal notranslate"><span class="pre">https</span></code></a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#e-mail-mailto">E-Mail <code class="docutils literal notranslate"><span class="pre">mailto</span></code></a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#phone-numbers-tel">Phone numbers <code class="docutils literal notranslate"><span class="pre">tel</span></code></a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#geo-coordinates-geo">Geo Coordinates <code class="docutils literal notranslate"><span class="pre">geo</span></code></a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#mobile-authenticators-otpauth">Mobile Authenticators <code class="docutils literal notranslate"><span class="pre">otpauth</span></code></a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#wireless-network-configuration">Wireless Network configuration</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#contact-information-vcard">Contact information: vCard</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#calendar-events-vcalendar-and-icalendar">Calendar Events: vCalendar and iCalendar</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/URI-Content.html#see-also">See also</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Appendix/Performance-considerations.html">Performance considerations</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Performance-considerations.html#version">Version</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Performance-considerations.html#ecc-level">Ecc level</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Performance-considerations.html#data-mode">Data mode</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Performance-considerations.html#mask-pattern">Mask pattern</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Performance-considerations.html#output">Output</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Appendix/Contribute.html">How to contribute</a><ul>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Contribute.html#questions-and-issues">Questions and issues</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Contribute.html#bug-reports">Bug reports</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Contribute.html#pull-requests-and-bug-fixes">Pull requests and bug fixes</a></li>
|
|
|
+<li class="toctree-l2"><a class="reference internal" href="../Appendix/Contribute.html#documentation">Documentation</a></li>
|
|
|
+</ul>
|
|
|
+</li>
|
|
|
+<li class="toctree-l1"><a class="reference internal" href="../Appendix/License.html">License</a></li>
|
|
|
+</ul>
|
|
|
+
|
|
|
+ </div>
|
|
|
+ </div>
|
|
|
+ </nav>
|
|
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+
|
|
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+ <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"><nav class="wy-nav-top" aria-label="Mobile navigation menu" >
|
|
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+ <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
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+ <a href="../index.html">PHP-QRCode</a>
|
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+ </nav>
|
|
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+
|
|
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+ <div class="wy-nav-content">
|
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+ <div class="rst-content">
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|
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+ <div role="navigation" aria-label="Page navigation">
|
|
|
+ <ul class="wy-breadcrumbs">
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+ <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
|
|
|
+ <li class="breadcrumb-item active">Custom <code class="docutils literal notranslate"><span class="pre">QROutputInterface</span></code></li>
|
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+ <li class="wy-breadcrumbs-aside">
|
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+ <a href="https://github.com/chillerlan/php-qrcode/blob/main/docs/Customizing/Custom-output-interface.md" class="fa fa-github"> Edit on GitHub</a>
|
|
|
+ </li>
|
|
|
+ </ul>
|
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+ <hr/>
|
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+</div>
|
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+ <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
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+ <div itemprop="articleBody">
|
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+
|
|
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+ <section id="custom-qroutputinterface">
|
|
|
+<h1>Custom <code class="docutils literal notranslate"><span class="pre">QROutputInterface</span></code><a class="headerlink" href="#custom-qroutputinterface" title="Link to this heading"></a></h1>
|
|
|
+<p>Let’s suppose that you want to create your own output interface because there’s no built-in output class that supports the format you need for your application.
|
|
|
+In this example we’ll create a string output class that outputs the coordinates for each module, separated by module type.</p>
|
|
|
+<section id="class-skeleton">
|
|
|
+<h2>Class skeleton<a class="headerlink" href="#class-skeleton" title="Link to this heading"></a></h2>
|
|
|
+<p>We’ll start with a skeleton that extends <code class="docutils literal notranslate"><span class="pre">QROutputAbstract</span></code> and implements the methods that are required by <code class="docutils literal notranslate"><span class="pre">QROutputInterface</span></code>:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">MyCustomOutput</span> <span class="k">extends</span> <span class="nx">QROutputAbstract</span><span class="p">{</span>
|
|
|
+
|
|
|
+ <span class="k">public</span> <span class="k">static</span> <span class="k">function</span> <span class="nf">moduleValueIsValid</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span><span class="o">:</span><span class="nx">bool</span><span class="p">{}</span>
|
|
|
+
|
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|
+ <span class="k">protected</span> <span class="k">function</span> <span class="nf">prepareModuleValue</span><span class="p">(</span><span class="nv">$value</span><span class="p">){}</span>
|
|
|
+
|
|
|
+ <span class="k">protected</span> <span class="k">function</span> <span class="nf">getDefaultModuleValue</span><span class="p">(</span><span class="nx">bool</span> <span class="nv">$isDark</span><span class="p">){}</span>
|
|
|
+
|
|
|
+ <span class="k">public</span> <span class="k">function</span> <span class="nf">dump</span><span class="p">(</span><span class="nx">string</span> <span class="nv">$file</span> <span class="o">=</span> <span class="k">null</span><span class="p">){}</span>
|
|
|
+
|
|
|
+<span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+</section>
|
|
|
+<section id="module-values">
|
|
|
+<h2>Module values<a class="headerlink" href="#module-values" title="Link to this heading"></a></h2>
|
|
|
+<p>The validator should check whether the given input value and range is valid for the output class and if it can be given to the <code class="docutils literal notranslate"><span class="pre">QROutputAbstract::prepareModuleValue()</span></code> method.
|
|
|
+For example in the built-in GD output it would check if the value is an array that has a minimum of 3 elements (for RGB), each of which is numeric.</p>
|
|
|
+<p>In this example we’ll accept string values, the characters <code class="docutils literal notranslate"><span class="pre">a-z</span></code> (case-insensitive) and a hyphen <code class="docutils literal notranslate"><span class="pre">-</span></code>:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span> <span class="k">public</span> <span class="k">static</span> <span class="k">function</span> <span class="nf">moduleValueIsValid</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span><span class="o">:</span><span class="nx">bool</span><span class="p">{</span>
|
|
|
+ <span class="k">return</span> <span class="nb">is_string</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span> <span class="o">&&</span> <span class="nb">preg_match</span><span class="p">(</span><span class="s1">'/^[a-z-]+$/i'</span><span class="p">,</span> <span class="nv">$value</span><span class="p">)</span> <span class="o">===</span> <span class="mi">1</span><span class="p">;</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>To prepare the final module substitute, you should transform the given (validated) input value in a way so that it can be accessed without any further calls or transformation.
|
|
|
+In the built-in output for example this means it would return an <code class="docutils literal notranslate"><span class="pre">ImagickPixel</span></code> instance or the integer value returned by <code class="docutils literal notranslate"><span class="pre">imagecolorallocate()</span></code> on the current <code class="docutils literal notranslate"><span class="pre">GdImage</span></code> instance.</p>
|
|
|
+<p>For our example, we’ll lowercase the validated string:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span> <span class="k">protected</span> <span class="k">function</span> <span class="nf">prepareModuleValue</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="k">return</span> <span class="nb">strtolower</span><span class="p">(</span><span class="nv">$value</span><span class="p">);</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>Finally, we need to provide a default value for dark and light, you can call <code class="docutils literal notranslate"><span class="pre">prepareModuleValue()</span></code> here if necessary.
|
|
|
+We’ll return an empty string <code class="docutils literal notranslate"><span class="pre">''</span></code> here as we’re going to use the <code class="docutils literal notranslate"><span class="pre">QROutputInterface::LAYERNAMES</span></code> constant for non-existing values
|
|
|
+(returning <code class="docutils literal notranslate"><span class="pre">null</span></code> would run into an exception in <code class="docutils literal notranslate"><span class="pre">QROutputAbstract::getModuleValue()</span></code>).</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span> <span class="k">protected</span> <span class="k">function</span> <span class="nf">getDefaultModuleValue</span><span class="p">(</span><span class="nx">bool</span> <span class="nv">$isDark</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="k">return</span> <span class="s1">''</span><span class="p">;</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+</section>
|
|
|
+<section id="transform-the-output">
|
|
|
+<h2>Transform the output<a class="headerlink" href="#transform-the-output" title="Link to this heading"></a></h2>
|
|
|
+<p>In our example, we want to collect the modules by type and have the collections listed under a header for each type.
|
|
|
+In order to do so, we need to collect the modules per <code class="docutils literal notranslate"><span class="pre">$M_TYPE</span></code> before we can render the final output.</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span> <span class="k">public</span> <span class="k">function</span> <span class="nf">dump</span><span class="p">(</span><span class="nx">string</span> <span class="nv">$file</span> <span class="o">=</span> <span class="k">null</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="nv">$collections</span> <span class="o">=</span> <span class="p">[];</span>
|
|
|
+
|
|
|
+ <span class="c1">// loop over the matrix and collect the modules per layer</span>
|
|
|
+ <span class="k">foreach</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">matrix</span><span class="o">-></span><span class="na">getMatrix</span><span class="p">()</span> <span class="k">as</span> <span class="nv">$y</span> <span class="o">=></span> <span class="nv">$row</span><span class="p">){</span>
|
|
|
+ <span class="k">foreach</span><span class="p">(</span><span class="nv">$row</span> <span class="k">as</span> <span class="nv">$x</span> <span class="o">=></span> <span class="nv">$M_TYPE</span><span class="p">){</span>
|
|
|
+ <span class="nv">$collections</span><span class="p">[</span><span class="nv">$M_TYPE</span><span class="p">][]</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">module</span><span class="p">(</span><span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">,</span> <span class="nv">$M_TYPE</span><span class="p">);</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="c1">// build the final output</span>
|
|
|
+ <span class="nv">$out</span> <span class="o">=</span> <span class="p">[];</span>
|
|
|
+
|
|
|
+ <span class="k">foreach</span><span class="p">(</span><span class="nv">$collections</span> <span class="k">as</span> <span class="nv">$M_TYPE</span> <span class="o">=></span> <span class="nv">$collection</span><span class="p">){</span>
|
|
|
+ <span class="nv">$name</span> <span class="o">=</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">getModuleValue</span><span class="p">(</span><span class="nv">$M_TYPE</span><span class="p">)</span> <span class="o">?:</span> <span class="nv">$this</span><span class="o">::</span><span class="na">LAYERNAMES</span><span class="p">[</span><span class="nv">$M_TYPE</span><span class="p">]);</span>
|
|
|
+ <span class="c1">// the section header</span>
|
|
|
+ <span class="nv">$out</span><span class="p">[]</span> <span class="o">=</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s2">"%s (%012b)</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$name</span><span class="p">,</span> <span class="nv">$M_TYPE</span><span class="p">);</span>
|
|
|
+ <span class="c1">// the list of modules</span>
|
|
|
+ <span class="nv">$out</span><span class="p">[]</span> <span class="o">=</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s2">"%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nb">implode</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$collection</span><span class="p">));</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="k">return</span> <span class="nb">implode</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$out</span><span class="p">);</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>We’ve introduced another method that handles the module rendering, which incooperates handling of the <code class="docutils literal notranslate"><span class="pre">QROptions::$drawLightModules</span></code> setting:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span> <span class="k">protected</span> <span class="k">function</span> <span class="nf">module</span><span class="p">(</span><span class="nx">int</span> <span class="nv">$x</span><span class="p">,</span> <span class="nx">int</span> <span class="nv">$y</span><span class="p">,</span> <span class="nx">int</span> <span class="nv">$M_TYPE</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+
|
|
|
+ <span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="nv">$this</span><span class="o">-></span><span class="na">drawLightModules</span> <span class="o">&&</span> <span class="o">!</span><span class="nv">$this</span><span class="o">-></span><span class="na">matrix</span><span class="o">-></span><span class="na">isDark</span><span class="p">(</span><span class="nv">$M_TYPE</span><span class="p">)){</span>
|
|
|
+ <span class="k">return</span> <span class="s1">''</span><span class="p">;</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="k">return</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s1">'x: %s, y: %s'</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">);</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>Speaking of option settings, there’s also <code class="docutils literal notranslate"><span class="pre">QROptions::$connectPaths</span></code> which we haven’t taken care of yet - the good news is that we don’t need to as it is already implemented!
|
|
|
+We’ll modify the above <code class="docutils literal notranslate"><span class="pre">dump()</span></code> method to use <code class="docutils literal notranslate"><span class="pre">QROutputAbstract::collectModules()</span></code> instead.</p>
|
|
|
+<p>The module collector accepts a closure as its only parameter, the closure is called with 4 parameters:</p>
|
|
|
+<ul class="simple">
|
|
|
+<li><p><code class="docutils literal notranslate"><span class="pre">$x</span></code> : current column</p></li>
|
|
|
+<li><p><code class="docutils literal notranslate"><span class="pre">$y</span></code> : current row</p></li>
|
|
|
+<li><p><code class="docutils literal notranslate"><span class="pre">$M_TYPE</span></code> : field value</p></li>
|
|
|
+<li><p><code class="docutils literal notranslate"><span class="pre">$M_TYPE_LAYER</span></code>: (possibly modified) field value that acts as layer id</p></li>
|
|
|
+</ul>
|
|
|
+<p>We’ll only need the first 3 parameters, so our closure would look as follows:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span><span class="nv">$closure</span> <span class="o">=</span> <span class="nx">fn</span><span class="p">(</span><span class="nx">int</span> <span class="nv">$x</span><span class="p">,</span> <span class="nx">int</span> <span class="nv">$y</span><span class="p">,</span> <span class="nx">int</span> <span class="nv">$M_TYPE</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">module</span><span class="p">(</span><span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">,</span> <span class="nv">$M_TYPE</span><span class="p">);</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>As of PHP 8.1+ we can narrow this down with the <a class="reference external" href="https://www.php.net/manual/en/functions.first_class_callable_syntax.php">first class callable syntax</a>:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span><span class="nv">$closure</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">module</span><span class="p">(</span><span class="o">...</span><span class="p">);</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>This is our final output method then:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span> <span class="k">public</span> <span class="k">function</span> <span class="nf">dump</span><span class="p">(</span><span class="nx">string</span> <span class="nv">$file</span> <span class="o">=</span> <span class="k">null</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="nv">$collections</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">collectModules</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">module</span><span class="p">(</span><span class="o">...</span><span class="p">));</span>
|
|
|
+
|
|
|
+ <span class="c1">// build the final output</span>
|
|
|
+ <span class="nv">$out</span> <span class="o">=</span> <span class="p">[];</span>
|
|
|
+
|
|
|
+ <span class="k">foreach</span><span class="p">(</span><span class="nv">$collections</span> <span class="k">as</span> <span class="nv">$M_TYPE</span> <span class="o">=></span> <span class="nv">$collection</span><span class="p">){</span>
|
|
|
+ <span class="nv">$name</span> <span class="o">=</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">getModuleValue</span><span class="p">(</span><span class="nv">$M_TYPE</span><span class="p">)</span> <span class="o">?:</span> <span class="nv">$this</span><span class="o">::</span><span class="na">LAYERNAMES</span><span class="p">[</span><span class="nv">$M_TYPE</span><span class="p">]);</span>
|
|
|
+ <span class="c1">// the section header</span>
|
|
|
+ <span class="nv">$out</span><span class="p">[]</span> <span class="o">=</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s2">"%s (%012b)</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$name</span><span class="p">,</span> <span class="nv">$M_TYPE</span><span class="p">);</span>
|
|
|
+ <span class="c1">// the list of modules</span>
|
|
|
+ <span class="nv">$out</span><span class="p">[]</span> <span class="o">=</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s2">"%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nb">implode</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$collection</span><span class="p">));</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="k">return</span> <span class="nb">implode</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$out</span><span class="p">);</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+</section>
|
|
|
+<section id="run-the-custom-output">
|
|
|
+<h2>Run the custom output<a class="headerlink" href="#run-the-custom-output" title="Link to this heading"></a></h2>
|
|
|
+<p>To run the output we just need to set the <code class="docutils literal notranslate"><span class="pre">QROptions::$outputInterface</span></code> to our custom class:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span><span class="nv">$options</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">QROptions</span><span class="p">;</span>
|
|
|
+<span class="nv">$options</span><span class="o">-></span><span class="na">outputType</span> <span class="o">=</span> <span class="nx">QROutputInterface</span><span class="o">::</span><span class="na">CUSTOM</span><span class="p">;</span>
|
|
|
+<span class="nv">$options</span><span class="o">-></span><span class="na">outputInterface</span> <span class="o">=</span> <span class="nx">MyCustomOutput</span><span class="o">::</span><span class="na">class</span><span class="p">;</span>
|
|
|
+<span class="nv">$options</span><span class="o">-></span><span class="na">connectPaths</span> <span class="o">=</span> <span class="k">true</span><span class="p">;</span>
|
|
|
+<span class="nv">$options</span><span class="o">-></span><span class="na">drawLightModules</span> <span class="o">=</span> <span class="k">true</span><span class="p">;</span>
|
|
|
+
|
|
|
+<span class="c1">// our custom module values</span>
|
|
|
+<span class="nv">$options</span><span class="o">-></span><span class="na">moduleValues</span> <span class="o">=</span> <span class="p">[</span>
|
|
|
+ <span class="nx">QRMatrix</span><span class="o">::</span><span class="na">M_DATA</span> <span class="o">=></span> <span class="s1">'these-modules-are-light'</span><span class="p">,</span>
|
|
|
+ <span class="nx">QRMatrix</span><span class="o">::</span><span class="na">M_DATA_DARK</span> <span class="o">=></span> <span class="s1">'here-is-a-dark-module'</span><span class="p">,</span>
|
|
|
+<span class="p">];</span>
|
|
|
+
|
|
|
+<span class="nv">$qrcode</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">QRCode</span><span class="p">(</span><span class="nv">$options</span><span class="p">);</span>
|
|
|
+<span class="nv">$qrcode</span><span class="o">-></span><span class="na">addByteSegment</span><span class="p">(</span><span class="s1">'test'</span><span class="p">);</span>
|
|
|
+
|
|
|
+<span class="nb">var_dump</span><span class="p">(</span><span class="nv">$qrcode</span><span class="o">-></span><span class="na">render</span><span class="p">());</span>
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>The output looks similar to the following:</p>
|
|
|
+<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>these-modules-are-light (000000000010)
|
|
|
+
|
|
|
+x: 0, y: 0
|
|
|
+x: 1, y: 0
|
|
|
+x: 2, y: 0
|
|
|
+...
|
|
|
+
|
|
|
+here-is-a-dark-module (100000000010)
|
|
|
+
|
|
|
+x: 4, y: 4
|
|
|
+x: 5, y: 4
|
|
|
+x: 6, y: 4
|
|
|
+...
|
|
|
+</pre></div>
|
|
|
+</div>
|
|
|
+<p>Profit!</p>
|
|
|
+</section>
|
|
|
+<section id="summary">
|
|
|
+<h2>Summary<a class="headerlink" href="#summary" title="Link to this heading"></a></h2>
|
|
|
+<p>We’ve learned how to create a custom output class for a string based format similar to several of the built-in formats such as SVG or EPS.</p>
|
|
|
+<p>The full code of our custom class below:</p>
|
|
|
+<div class="highlight-php notranslate"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">MyCustomOutput</span> <span class="k">extends</span> <span class="nx">QROutputAbstract</span><span class="p">{</span>
|
|
|
+
|
|
|
+ <span class="k">protected</span> <span class="k">function</span> <span class="nf">prepareModuleValue</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="k">return</span> <span class="nb">strtolower</span><span class="p">(</span><span class="nv">$value</span><span class="p">);</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="k">protected</span> <span class="k">function</span> <span class="nf">getDefaultModuleValue</span><span class="p">(</span><span class="nx">bool</span> <span class="nv">$isDark</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="k">return</span> <span class="s1">''</span><span class="p">;</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="k">public</span> <span class="k">static</span> <span class="k">function</span> <span class="nf">moduleValueIsValid</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span><span class="o">:</span><span class="nx">bool</span><span class="p">{</span>
|
|
|
+ <span class="k">return</span> <span class="nb">is_string</span><span class="p">(</span><span class="nv">$value</span><span class="p">)</span> <span class="o">&&</span> <span class="nb">preg_match</span><span class="p">(</span><span class="s1">'/^[a-z-]+$/i'</span><span class="p">,</span> <span class="nv">$value</span><span class="p">)</span> <span class="o">===</span> <span class="mi">1</span><span class="p">;</span>
|
|
|
+ <span class="p">}</span>
|
|
|
+
|
|
|
+ <span class="k">public</span> <span class="k">function</span> <span class="nf">dump</span><span class="p">(</span><span class="nx">string</span> <span class="nv">$file</span> <span class="o">=</span> <span class="k">null</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
|
|
|
+ <span class="nv">$collections</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">collectModules</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">module</span><span class="p">(</span><span class="o">...</span><span class="p">));</span>
|
|
|
+
|
|
|
+ <span class="c1">// build the final output</span>
|
|
|
+ <span class="nv">$out</span> <span class="o">=</span> <span class="p">[];</span>
|
|
|
+
|
|
|
+ <span class="k">foreach</span><span class="p">(</span><span class="nv">$collections</span> <span class="k">as</span> <span class="nv">$M_TYPE</span> <span class="o">=></span> <span class="nv">$collection</span><span class="p">){</span>
|
|
|
+ <span class="nv">$name</span> <span class="o">=</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">getModuleValue</span><span class="p">(</span><span class="nv">$M_TYPE</span><span class="p">)</span> <span class="o">?:</span> <span class="nv">$this</span><span class="o">::</span><span class="na">LAYERNAMES</span><span class="p">[</span><span class="nv">$M_TYPE</span><span class="p">]);</span>
|
|
|
+ <span class="c1">// the section header</span>
|
|
|
+ <span class="nv">$out</span><span class="p">[]</span> <span class="o">=</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s2">"%s (%012b)</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$name</span><span class="p">,</span> <span class="nv">$M_TYPE</span><span class="p">);</span>
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+ <span class="c1">// the list of modules</span>
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+ <span class="nv">$out</span><span class="p">[]</span> <span class="o">=</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s2">"%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nb">implode</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$collection</span><span class="p">));</span>
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+ <span class="p">}</span>
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+
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+ <span class="k">return</span> <span class="nb">implode</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="nv">$out</span><span class="p">);</span>
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+ <span class="p">}</span>
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+
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+ <span class="k">protected</span> <span class="k">function</span> <span class="nf">module</span><span class="p">(</span><span class="nx">int</span> <span class="nv">$x</span><span class="p">,</span> <span class="nx">int</span> <span class="nv">$y</span><span class="p">,</span> <span class="nx">int</span> <span class="nv">$M_TYPE</span><span class="p">)</span><span class="o">:</span><span class="nx">string</span><span class="p">{</span>
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+
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+ <span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="nv">$this</span><span class="o">-></span><span class="na">drawLightModules</span> <span class="o">&&</span> <span class="o">!</span><span class="nv">$this</span><span class="o">-></span><span class="na">matrix</span><span class="o">-></span><span class="na">isDark</span><span class="p">(</span><span class="nv">$M_TYPE</span><span class="p">)){</span>
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+ <span class="k">return</span> <span class="s1">''</span><span class="p">;</span>
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+ <span class="p">}</span>
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+
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+ <span class="k">return</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s1">'x: %s, y: %s'</span><span class="p">,</span> <span class="nv">$x</span><span class="p">,</span> <span class="nv">$y</span><span class="p">);</span>
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+ <span class="p">}</span>
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+
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+<span class="p">}</span>
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+</pre></div>
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+</div>
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+</section>
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+</section>
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+
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+
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+ </div>
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+ </div>
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+ <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
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+ <a href="QROutputAbstract.html" class="btn btn-neutral float-left" title="QROutputAbstract" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
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+ <a href="../Built-In-Output/QREps.html" class="btn btn-neutral float-right" title="QREps" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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+ </div>
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+
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+ <hr/>
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+
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+ <div role="contentinfo">
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+ <p>© Copyright 2023, smiley.</p>
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+ </div>
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+
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+ SphinxRtdTheme.Navigation.enable(true);
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