monstrum/cropbox 问题修复 & 功能扩展

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monstrum/cropbox

Composer 安装命令:

composer require monstrum/cropbox

包简介

Image Editor in standard jQuery plugin Structure. Fork from https://github.com/acornejo/jquery-cropbox

README 文档

README

jQuery plugin for in-place image cropping (zoom & pan, as opposed to select and drag).

This plugin depends only on jQuery. If either Hammer.js or jquery.hammer.js is loaded, the cropbox plugin will support gestures for panning and zooming the cropbox. Similary, if the jquery.mousewheel.js plugin is loaded, then the cropbox plugin will support zoom in & out using the mousewheel. All dependencies on third party libraries (other than jQuery) are strictly optional. Support for CommonJS and AMD loading is built in.

In browsers that support the HTML5 FIle API and Canvas API, the cropbox plugin provides mehtods to crop the image on the client and obtain the resulting cropped image as a Data URL or a binary blob to upload it to the server.

Check out the plugin in action here http://acornejo.github.io/jquery-cropbox/

History: This plugin started as a fork of jQcrop, and added touch support, mousewheel support and client resize support through the canvas api.

Install with Bower: bower install cropbox

Usage

	$('yourimage').cropbox({
	    width: 200,
		height: 200
	}, function() {
		//on load
		console.log('Url: ' + this.getDataURL());
	}).on('cropbox', function(e, data) {
        console.log('crop window: ' + data);
	});

Options

Option Type Default Required Description
width integer 200 no Width in pixels of the cropping window
height integer 200 no Height in pixels of the cropping window
zoom integer 10 no Number of incremental zoom steps. With the default of 10, you have to click the zoom-in button 9 times to reach 100%.
maxZoom number 1.0 no Maximum zoom value. With the default of 1.0 users can't zoom beyond the maximum image resolution.
controls string/jquery null no If not null, this is the entire html block that should appear on hover over the image for instructions and/or buttons (could include the zoom in/out buttons for example). If null, the default html block is used which has the text "Click to drag" and the zoom in/out buttons. Use false to disable controls.
result {cropX:number, cropY:number, cropW:number, cropH:number} null no Set the initial cropping area
showControls never, always, hover, auto auto no This flag is used to determine when to display the controls. Never, always and hover do exactly what you would expect (never show them, always show them, show them on hover). The auto flag is the same as the hover flag, except that on mobile devices it always shows the controls (since there is no hover event).

Methods

Name Parameters Description
zoomIn (none) Increase image zoom level by one step
zoomOut (none) Decrease image zoom level by one step
zoom percent Set zoom leevl to a value between 0 and 1. Need to call update to reflect the changes.
drag {startX: integer, startY: integer, dx: integer, dy: integer} Simulate image dragging, starting from (startX,startY) and moving a delta of (dx,dy). Need to call update to reflect the changes.
setCrop {cropX: number, cropY: number, cropW: number, cropH: number} Set crop window.
update (none) Update the cropped result (must call after zoom and drag).
getDataURL (none) Generate a URL for the cropped image on the client (requires HTML5 compliant browser).
getBlob (none) Generate a Blob with the cropped image (requires HTML5 compliant browser).
remove (none) Remove the cropbox functionality from the image.

Event

To get the crop results, bind a function on the cropbox event or read the object's result property .

    $('yourimage').cropbox({width: 250, height: 250})
    .on('cropbox', function (e, result) {
        console.log(result);
    });

A reference to the cropbox object can be accessed like so:

	var crop = $('yourimage').data('cropbox');
	console.log(crop.result);

or inside the onload function:

	var crop = $('yourimage').cropbox({}, function() {
		console.log(this.result);
	});

You then have access to all the properties and methods used for that specific element.

Bug Reporting

Use the issues section to report any problems or questions regarding jquery-cropbox.

Please understand that I develop this plugin in my spare time, which is limited. To make the best use of my time, I ask that you submit a detailed bug report and include a jsfiddle that exhibits the problem, otherwise I won't be able to offer much help.

A sample jsfiddle is provided here, fork it and create a minimal example that recreates the problem you are having and provide a link to it in the issue.

monstrum/cropbox 适用场景与选型建议

monstrum/cropbox 是一款 基于 JavaScript 开发的 Composer 扩展包,目前已累计 58 次下载、GitHub Stars 达 0, 最近一次更新时间为 2015 年 07 月 26 日, 在 PHP 生态内属于活跃度较高的组件。

它主要适用于以下技术方向: 「thumbnail」 「crop」 「image drag and crop」 「zoom and crop」 等业务场景。在实际项目中,围绕这些方向常见需要落地的问题包括:接口对接、性能调优、并发安全、与既有框架(Laravel / ThinkPHP / Yii / Webman 等)的兼容适配,以及生产环境的日志埋点与稳定性保障。

我们在过去多个企业项目中使用过 monstrum/cropbox 或与其功能相近的方案,如果你在选型或落地过程中遇到问题,例如 版本兼容、二次改造、私有化封装、与内部系统对接、生产 BUG 排查,欢迎联系我们协助评估。

围绕 monstrum/cropbox 我们能提供哪些服务?
定制开发 / 二次开发

基于 monstrum/cropbox 在你已有业务上做功能扩展、字段裁剪、UI 适配、与内部账号 / 权限 / 日志系统的深度对接。

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项目外包 & 长期维护

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统计信息

  • 总下载量: 58
  • 月度下载量: 0
  • 日度下载量: 0
  • 收藏数: 0
  • 点击次数: 18
  • 依赖项目数: 1
  • 推荐数: 0

GitHub 信息

  • Stars: 0
  • Watchers: 1
  • Forks: 79
  • 开发语言: JavaScript

其他信息

  • 授权协议: MIT
  • 更新时间: 2015-07-26