本文实例讲述了Django imgareaselect手动剪切头像的方法。分享给大家供大家参考。具体如下：
index.html:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>上传图片</title> </head> <body> <form action="." method="post" enctype="multipart/form-data">{% csrf_token %} <table border="0"> {{form.as_table}} <tr> <td></td> <td><input type="submit" value="上传"/></td> </tr> </table> </form> </body> </html> show.html:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>HTML5的标题</title> <style> ul {width:80%;padding:5px;} li{list-style:none;float:left;padding:5px;margin:5px;background-color:#ccc;} .info{color:green;} </style> </head> <body> <p><a href="{%url headhat_index%}">继续上传头像</a></p> {% if messages %} {% for message in messages %} <p{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p> {% endfor %} {% endif %} <ul> {%for p in photos%} <li><img src="{{path}}{{p.photo_name}}" alt="big"/><br/> <img src="{{path}}{{p.photo_thumb}}" alt="thumb"/> <a href="{%url headhat_cut p.id%}">继续剪切</a> </li> {%endfor%} </ul> </body> </html> cut.html:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>剪切</title> <link rel="stylesheet" type="text/css" href="/static/jquery.imgareaselect-0.9.3/css/imgareaselect-default.css" /> <style rel="stylesheet" type="text/css" > .area { background:none repeat scroll 0 0 #EEEEFF; border:2px solid #DDDDEE; padding:0.6em 0.6em 1em 0.6em; width:85%; display:block; margin-bottom:1em; } div.frame { background:none repeat scroll 0 0 #FFFFFF; border:2px solid #DDDDDD; padding:0.4em; } .info{color:green;} </style> <script type="text/javascript" src="js/jquery.min.js"></script><script type="text/javascript" src="js/jquery.imgareaselect.min.js"></script><script type="text/javascript"> function preview(img, selection) { if (!selection.width || !selection.height) return; var scaleX = 100 / selection.width; var scaleY = 100 / selection.height; $('#preview img').css({ width: Math.round(scaleX * 300), height: Math.round(scaleY * 300), marginLeft: -Math.round(scaleX * selection.x1), marginTop: -Math.round(scaleY * selection.y1) }); $('#id_x1').val(selection.x1); $('#id_y1').val(selection.y1); $('#id_x2').val(selection.x2); $('#id_y2').val(selection.y2); $('#id_w').val(selection.width); $('#id_h').val(selection.height); } $(function (){ $('#id_x1').val(100); $('#id_y1').val(100); $('#id_x2').val(200); $('#id_y2').val(200); $('#id_w').val(100); $('#id_h').val(100); $('#photo').imgAreaSelect({ aspectRatio: '1:1', handles: true, fadeSpeed: 200, minHeight:100,minWidth:100,onSelectChange: preview, x1: 100, y1: 100, x2: 200, y2: 200 }); }); </script> </head> <body> <h3>头像剪切 <a href="{%url headhat_index%}"><b>返回</b></a> </h3> {% if messages %} {% for message in messages %} <p{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p> {% endfor %} {% endif %} <div class="area"> <div style="float: left; width: 45%;"> <p class="instructions">点击原图 选择剪切区域</p> <div style="margin: 0pt 0.3em; width: 300px; height: 300px;" class="frame"> <img src="{{vir_path}}" id="photo" alt="30"/> </div> </div> <div style="float: left; width: 40%; padding-top:50px;"> <p style="font-size: 110%; font-weight: bold; padding-left: 0.1em;">预览选择区域</p> <div style="margin: 0pt 1em; width: 100px; height: 100px;" class="frame"> <div style="width: 100px; height: 100px; overflow: hidden;" id="preview"> <img style="width: 244px; height: 244px; margin-left: -71px; margin-top: -54px;" src="{{vir_path}}" alt="300"/> </div> </div> <form action="" method="POST">{% csrf_token %} <table style="margin-top: 1em;"> <thead> <tr> <th style="font-size: 110%; font-weight: bold; text-align: left; padding-left: 0.1em;" colspan="2"> 剪切坐标 </th> <th style="font-size: 110%; font-weight: bold; text-align: left; padding-left: 0.1em;" colspan="2"> 剪切尺寸 </th> </tr> </thead> <tbody> <tr> <td style="width: 10%;"><b>X<sub>1</sub>:</b></td> <td style="width: 30%;">{{form.x1}}</td> <td style="width: 20%;"><b>宽度:</b></td> <td>{{form.w}}</td> </tr> <tr> <td><b>Y<sub>1</sub>:</b></td> <td>{{form.y1}}</td> <td><b>高度:</b></td> <td>{{form.h}}</td> </tr> <tr> <td><b>X<sub>2</sub>:</b></td> <td>{{form.x2}}</td> <td></td> <td></td> </tr> <tr> <td><b>Y<sub>2</sub>:</b></td> <td>{{form.y2}}</td> <td></td> <td><input type="submit" value="保存"/></td> </tr> </tbody> </table> </form> </div> <div style="clear:left;"></div> </div> </body> </html>
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