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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                [TOC] # (一)簡介 有時候,我們在業務流程中需要用到簽名,有時候我們會束手無策,這時修改用該插件就可以將你的在大名寫在電子單上,實現電子業務流程。 jq-signature是一款基于HTML5 canvas的支持移動觸摸設備的在線簽名和涂鴉jQuery插件。可以使用該jQuery插件來制作在線簽名或涂鴉板,用戶繪制的東西可以用圖片的形式保存下來,非常方便實用。 # (二)最簡示例 ## 1、本站預覽 https://hongweizhiyuan.gitee.io/ijquery/signature/ ## 2、本站代碼 https://gitee.com/hongweizhiyuan/ijquery/tree/master/signature ## 3、圖片展示 ![mark](http://qiniu.newthink.cc/blog/180920/25K5k55iBH.png) ## 4、最簡代碼 ``` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>簽名插件</title> <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script> <script type="text/javascript" src="jq-signature.js"></script> <style> *{margin:0px;padding: 0px;} </style> </head> <body> <!--簽名區域--> <div class="js-signature" data-width="600" data-height="200" data-border="1px solid #1ABC9C" data-background="#16A085" data-line-color="#fff" data-auto-fit="true"> </div> <script> $(function () { $('.js-signature').jqSignature(); }) </script> </body> </html> ``` # 其他用法 我們看一看該插件的其他用法! ``` <button id="clearBtn" onclick="clearCanvas();">清除簽名</button> <button id="saveBtn" onclick="saveSignature();" disabled>保存簽名</button> //初始化 $(document).on('ready', function() { $('.js-signature').jqSignature(); }); //清除畫布 function clearCanvas() { $('#signature').html('<p><em>Your signature will appear here when you click "Save Signature"</em></p>'); $('.js-signature').jqSignature('clearCanvas'); $('#saveBtn').attr('disabled', true); } //保存簽名 function saveSignature() { $('#signature').empty(); var dataUrl = $('.js-signature').jqSignature('getDataURL'); var img = $('<img>').attr('src', dataUrl); $('#signature').append($('<p>').text("Here's your signature:")); $('#signature').append(img); } // $('.js-signature').on('jq.signature.changed', function() { $('#saveBtn').attr('disabled', false); }); ``` # 配置參數 | 參數 | 描述 | Data Attribute | 示例| |---|---|---|---| | Width | 簽名canvas的寬度,單位像素,默認值300 | data-width="600" | $().jqSignature({width: 600}); | | Height | 簽名canvas的高度,單位像素,默認值100| data-height="200"| $().jqSignature({height: 200});| | Border | 簽名canvas的邊框CSS樣式。默認為'1px solid #AAAAAA' | data-border="1px solid red" | $().jqSignature({border: '1px solid red'}); | | Background | 簽名canvas的背景顏色,默認值為'#FFFFFF' | data-background="#EEEEEE" | $().jqSignature({background: '#EEEEEE'}); | | Line Color | 簽名的顏色。默認值為#222222' | data-line-color="#ABCDEF" | $().jqSignature({lineColor: '#ABCDEF'}); | | Line Width | 簽名的線寬,單位像素,默認值為1 | data-line-width="2" | $().jqSignature({lineWidth: 2}); | | Auto Fit | 使canvas占滿父元素的寬度,默認值false | data-auto-fit="true" | $().jqSignature({autoFit: true}); | # 參考網址 《HTML5 canvas支持觸摸屏的簽名涂鴉插件》http://www.htmleaf.com/html5/html5-canvas/201505281921.html
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