newhub/study/前端学习资料/web/100套HTML模板/64-gentelella/vendors/cropper - Hub

File OriginalPic	EditTime	Size
dist	2024-02-15 15:37:45	114.38 KB
src	2024-02-15 15:37:45	84.02 KB
bower.json	2017-06-06 01:19:04	933 B
CHANGELOG.md	2017-06-06 01:19:04	10.29 KB
LICENSE	2017-06-06 01:19:04	1.08 KB
package.json	2017-06-06 01:19:04	1.13 KB
README.md	2017-06-06 01:19:04	23.81 KB

# Cropper

> A simple jQuery image cropping plugin.

- [Website](https://fengyuanchen.github.io/cropper)
- [Cropper without jQuery](https://github.com/fengyuanchen/cropperjs)

[![Build Status Images](https://travis-ci.org/fengyuanchen/cropper.svg)](https://travis-ci.org/fengyuanchen/cropper)

## Table of contents

- [Features](#features)
  - [Main](#main)
  - [Getting started](#getting-started)
  - [Options](#options)
  - [Methods](#methods)
  - [Events](#events)
  - [No conflict](#no-conflict)
  - [Browser support](#browser-support)
  - [Contributing](#contributing)
  - [Versioning](#versioning)
  - [License](#license)

## Features

- Supports 39 [options](#options)
- Supports 27 [methods](#methods)
- Supports 7 [events](#events)
- Supports touch (mobile)
- Supports zooming
- Supports rotating
- Supports scaling (flipping)
- Supports multiple croppers
- Supports to crop on a canvas
- Supports to crop image in the browser-side by canvas
- Supports to translate Exif Orientation information
- Cross-browser support

## Main

```
dist/
├── cropper.css     ( 5 KB)
├── cropper.min.css ( 4 KB)
├── cropper.js      (79 KB)
└── cropper.min.js  (28 KB)
```

## Getting started

### Quick start

Four quick start options are available:

- [Download the latest release](https://github.com/fengyuanchen/cropper/archive/master.zip).
- Clone the repository: `git clone https://github.com/fengyuanchen/cropper.git`.
- Install with [NPM](http://npmjs.org): `npm install cropper`.
- Install with [Bower](http://bower.io): `bower install cropper`.

### Installation

Include files:

```html
<script src="/path/to/jquery.js"></script>
<link  href="/path/to/cropper.css" rel="stylesheet">
<script src="/path/to/cropper.js"></script>
```

The [cdnjs](https://github.com/cdnjs/cdnjs) provides CDN support for Cropper's CSS and JavaScript. You can find the links [here](https://cdnjs.com/libraries/cropper).

### Usage

Initialize with `$.fn.cropper` method.

```html

<div>
  <img id="image" src="picture.jpg">
</div>
```

```css
/* Limit image width to avoid overflow the container */
img {
  max-width: 100%; /* This rule is very important, please do not ignore this! */
}
```

```js
$('#image').cropper({
  aspectRatio: 16 / 9,
  crop: function(e) {
    // Output the result data for cropping image.
    console.log(e.x);
    console.log(e.y);
    console.log(e.width);
    console.log(e.height);
    console.log(e.rotate);
    console.log(e.scaleX);
    console.log(e.scaleY);
  }
});
```

#### FAQ

See the [FAQ](FAQ.md) documentation.

#### Notes

- The size of the cropper inherits from the size of the image's parent element (wrapper), so be sure to wrap the image with a **visible block element**.
  > If you are using cropper in a modal, you should initialize the cropper after the modal shown completely. Otherwise, you will not get a correct cropper.

- The outputted cropped data bases on the original image size, so you can use them to crop the image directly.

- If you try to start cropper on a cross-origin image, please make sure that your browser supports HTML5 [CORS settings attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_settings_attributes), and your image server supports the `Access-Control-Allow-Origin` option (see the [HTTP access control (CORS)](https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS)).

#### Known issues

- [Known iOS resource limits](https://developer.apple.com/library/mac/documentation/AppleApplications/Reference/SafariWebContent/CreatingContentforSafarioniPhone/CreatingContentforSafarioniPhone.html): As iOS devices limit memory, the browser may crash when you are cropping a large image (iPhone camera resolution). To avoid this, you may resize the image first (below 1024px) before start a cropper.

- Known image size increase: When export the cropped image on browser-side with the `HTMLCanvasElement.toDataURL` method, the the exported image'size may be greater than the original image's. This is because the exported image'type is not the same as the original image's. So just pass the original image's type as the first parameter to `toDataURL` to fix this. For example, if the original type is JPEG, then use `$().cropper('getCroppedCanvas').toDataURL('image/jpeg')` to export image.

[⬆ back to top](#table-of-contents)

## Options

You may set cropper options with `$().cropper(options)`.
If you want to change the global default options, You may use `$.fn.cropper.setDefaults(options)`.

### viewMode

- Type: `Number`
- Default: `0`
- Options:
  - `0`: the crop box is just within the container
  - `1`: the crop box should be within the canvas
  - `2`: the canvas should not be within the container
  - `3`: the container should be within the canvas

Define the view mode of the cropper.

### dragMode

- Type: `String`
- Default: `'crop'`
- Options:
  - `'crop'`: create a new crop box
  - `'move'`: move the canvas
  - `'none'`: do nothing

Define the dragging mode of the cropper.

### aspectRatio

- Type: `Number`
- Default: `NaN`

Set the aspect ratio of the crop box. By default, the crop box is free ratio.

### data

- Type: `Object`
- Default: `null`

The previous cropped data if you had stored, will be passed to `setData` method automatically.

### preview

- Type: `String` (**jQuery selector**)
- Default: `''`

Add extra elements (containers) for previewing.

**Notes:**

- The maximum width is the initial width of preview container.
- The maximum height is the initial height of preview container.
- If you set an `aspectRatio` option, be sure to set the preview container with the same aspect ratio.
- If preview is not getting properly displayed, set `overflow:hidden` to the preview container.

### responsive