Image uploading and cropping is the most important functionality of any web project.In this article I have also shared Live Demo and Source Code to upload and crop image in a bootmodal using Codeigniter, MySql and jQuery.This is a simple jQuery image cropping plugin cropper.js.
Step 1: Include JS and CSS file
Open "application/config/constants.php" file and add code like as bellow:
Step 2: Create a Model file Cropper
Create a model file named "Cropper.php and Site.php" inside "application/controllers" folder.
Step 3: Create a Controller file Crop Express
Create a Controller file named "Crop.php" inside "application/controllers" folder.
Step 4: Create a view file index
Create a view file named "index.php" inside "application/views/paypal" folder
Step 5: Create a file main.js
Create a view file named "main.php" inside "assets/crop/js" folder
Step 1: Include JS and CSS file
Open "application/config/constants.php" file and add code like as bellow:
?>
Step 2: Create a Model file Cropper
Create a model file named "Cropper.php and Site.php" inside "application/controllers" folder.
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
* @package Cropper : CodeIgniter Crop *
* @author TechArise Team
*
* @email info@techarise.com
*
* Description of Cropper Model
*/
class Cropper extends CI_Model {
private $src;
private $data;
private $dst;
private $type;
private $extension;
private $msg;
private $dstThumb;
//set Src
public function setSrc($src) {
if (!empty($src)) {
$type = exif_imagetype($src);
if($type) {
$this ->src = $src;
$this ->type = $type;
$this ->extension = image_type_to_extension($type);
$this ->setDst();
}
}
}
// set Data
public function setData($data) {
if (!empty($data)) {
return $this ->data = json_decode(stripslashes($data));
}
}
// set File
public function setFile($file, $originalPath) {
$errorCode = $file['error'];
if ($errorCode === UPLOAD_ERR_OK) {
if ( function_exists( 'exif_imagetype' ) ) {
$type = exif_imagetype($file['tmp_name']);
} else {
$r = getimagesize( $file['tmp_name'] );
$type = $r[2];
}
if ($type) {
$extension = image_type_to_extension($type);
$src = $originalPath . date('YmdHis').'-original' . $extension;
if ($type == IMAGETYPE_GIF || $type == IMAGETYPE_JPEG || $type == IMAGETYPE_PNG) {
if (file_exists($src)) {
unlink($src);
}
$result = move_uploaded_file($file['tmp_name'], $src);
if ($result) {
$this ->src = $src;
$this ->type = $type;
$this ->extension = $extension;
$this ->setDst(true);
} else {
$this -> msg = 'Failed to save file';
}
} else {
$this -> msg = 'Please upload image with the following types: JPG, PNG, GIF';
}
} else {
$this -> msg = 'Please upload image file';
}
} else {
$this -> msg = $this -> codeToMessage($errorCode);
}
return $src;
}
// set Dst
public function setDst($thumbPath) {
$imageCropName = date('YmdHis') . '.png';
$this ->dstThumb = $imageCropName;
return $this ->dst = $thumbPath . $imageCropName;
}
// crop image
public function crop($src, $dst, $data) {
if (!empty($src) && !empty($dst) && !empty($data)) {
switch ($this ->type) {
case IMAGETYPE_GIF:
$src_img = imagecreatefromgif($src);
break;
case IMAGETYPE_JPEG:
$src_img = imagecreatefromjpeg($src);
break;
case IMAGETYPE_PNG:
$src_img = imagecreatefrompng($src);
break;
}
if (!$src_img) {
$this -> msg = "Failed to read the image file";
return;
}
$size = getimagesize($src);
$size_w = $size[0]; // natural width
$size_h = $size[1]; // natural height
$src_img_w = $size_w;
$src_img_h = $size_h;
$degrees = $data ->rotate;
// Rotate the source image
if (is_numeric($degrees) && $degrees != 0) {
// PHP's degrees is opposite to CSS's degrees
$new_img = imagerotate( $src_img, -$degrees, imagecolorallocatealpha($src_img, 0, 0, 0, 127) );
imagedestroy($src_img);
$src_img = $new_img;
$deg = abs($degrees) % 180;
$arc = ($deg > 90 ? (180 - $deg) : $deg) * M_PI / 180;
$src_img_w = $size_w * cos($arc) + $size_h * sin($arc);
$src_img_h = $size_w * sin($arc) + $size_h * cos($arc);
// Fix rotated image miss 1px issue when degrees < 0
$src_img_w -= 1;
$src_img_h -= 1;
}
$tmp_img_w = $data -> width;
$tmp_img_h = $data -> height;
$dst_img_w = 220;
$dst_img_h = 220;
$src_x = $data -> x;
$src_y = $data -> y;
if ($src_x <= -$tmp_img_w || $src_x > $src_img_w) {
$src_x = $src_w = $dst_x = $dst_w = 0;
} else if ($src_x <= 0) {
$dst_x = -$src_x;
$src_x = 0;
$src_w = $dst_w = min($src_img_w, $tmp_img_w + $src_x);
} else if ($src_x <= $src_img_w) {
$dst_x = 0;
$src_w = $dst_w = min($tmp_img_w, $src_img_w - $src_x);
}
if ($src_w <= 0 || $src_y <= -$tmp_img_h || $src_y > $src_img_h) {
$src_y = $src_h = $dst_y = $dst_h = 0;
} else if ($src_y <= 0) {
$dst_y = -$src_y;
$src_y = 0;
$src_h = $dst_h = min($src_img_h, $tmp_img_h + $src_y);
} else if ($src_y <= $src_img_h) {
$dst_y = 0;
$src_h = $dst_h = min($tmp_img_h, $src_img_h - $src_y);
}
// Scale to destination position and size
$ratio = $tmp_img_w / $dst_img_w;
$dst_x /= $ratio;
$dst_y /= $ratio;
$dst_w /= $ratio;
$dst_h /= $ratio;
$dst_img = imagecreatetruecolor($dst_img_w, $dst_img_h);
// Add transparent background to destination image
imagefill($dst_img, 0, 0, imagecolorallocatealpha($dst_img, 0, 0, 0, 127));
imagesavealpha($dst_img, true);
$result = imagecopyresampled($dst_img, $src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
if ($result) {
if (!imagepng($dst_img, $dst)) {
$this -> msg = "Failed to save the cropped image file";
}
} else {
$this -> msg = "Failed to crop the image file";
}
imagedestroy($src_img);
imagedestroy($dst_img);
}
}
// codeToMessage
public function codeToMessage($code) {
$errors = array(
UPLOAD_ERR_INI_SIZE =>'The uploaded file exceeds the upload_max_filesize directive in php.ini',
UPLOAD_ERR_FORM_SIZE =>'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
UPLOAD_ERR_PARTIAL =>'The uploaded file was only partially uploaded',
UPLOAD_ERR_NO_FILE =>'No file was uploaded',
UPLOAD_ERR_NO_TMP_DIR =>'Missing a temporary folder',
UPLOAD_ERR_CANT_WRITE =>'Failed to write file to disk',
UPLOAD_ERR_EXTENSION =>'File upload stopped by extension',
);
if (array_key_exists($code, $errors)) {
return $errors[$code];
}
return 'Unknown upload error';
}
public function getResult() {
return !empty($this ->data) ? $this ->dst : $this ->src;
}
public function getThumbResult() {
return !empty($this ->data) ? $this ->dstThumb : $this ->src;
}
public function getMsg() {
return $this -> msg;
}
}
?>
Step 3: Create a Controller file Crop Express
Create a Controller file named "Crop.php" inside "application/controllers" folder.
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
* @package Crop : CodeIgniter Crop *
* @author TechArise Team
*
* @email info@techarise.com
*
* Description of Crop Controller
*/
if (!defined('BASEPATH'))
exit('No direct script access allowed');
class Crop extends CI_Controller {
public function __construct() {
parent::__construct();
//$this->load->library('upload');
$this->load->helper(array('form', 'url'));
$this->load->model('Site', 'site');
$this->load->model('Cropper', 'cropper');
}
// index page
public function index() {
$data['title'] = 'Image Crop | TechArise';
$this->site->setUserID(1);
$data['userInfo'] = $this->site->getUserDetails();
$this->load->view('crop/index', $data);
}
// crop avtar
public function upload() {
$json = array();
$avatar_src = $this->input->post('avatar_src');
$avatar_data = $this->input->post('avatar_data');
$avatar_file = $_FILES['avatar_file'];
$ussid = $this->input->post('ussid');
$upltype = $this->input->post('upltype');
$originalPath = ROOT_UPLOAD_PATH;
$thumbPath = ROOT_UPLOAD_PATH.'_thumb/';
$urlPath = HTTP_USER_PROFILE_THUMB_PATH;
$thumb = $this->cropper->setDst($thumbPath);
$this->cropper->setSrc($avatar_src);
$data = $this->cropper->setData($avatar_data);
// set file
$avatar_path = $this->cropper->setFile($avatar_file, $originalPath);
// crop
$this->cropper->crop($avatar_path, $thumb, $data);
// response
$json = array(
'state' => 200,
'message' => $this->cropper->getMsg(),
'result' => $this->cropper->getResult(),
'thumb' => $this->cropper->getThumbResult(),
'ussid' => $ussid,
'upltype' => $upltype,
'urlPath' => $urlPath,
);
echo json_encode($json);
}
// upload prifile avatar Crop Image
public function uploadCropImg() {
$json = array();
$image_url = $this->input->post('image_url');
$user_id = base64_decode($this->input->post('member_id'));
$upltype = $this->input->post('upltype');
if (!empty($user_id) && !empty($upltype) && $upltype=='avatar') {
$this->site->seturl($image_url);
$this->site->setUserID($user_id);
$this->site->setMemberProfilePicture();
$json['success'] = 'success';
} else {
$json['success'] = 'failed';
}
header('Content-Type: application/json');
echo json_encode($json);
}
}
?>
Step 4: Create a view file index
Create a view file named "index.php" inside "application/views/paypal" folder
$this->load->view('templates/header');
?>
if(!empty($userInfo['url'])) {
$url = HTTP_USER_PROFILE_THUMB_PATH.$userInfo['url'];
} else {
$url = HTTP_IMAGES_PATH .'user-default.jpg';
}
?>
$this->load->view('templates/footer');
$this->load->view('crop/profileAvatar');
?>
Step 5: Create a file main.js
Create a view file named "main.php" inside "assets/crop/js" folder
(function (factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as anonymous module.
define(['jquery'], factory);
} else if (typeof exports === 'object') {
// Node / CommonJS
factory(require('jquery'));
} else {
// Browser globals.
factory(jQuery);
}
})(function ($) {
'use strict';
var console = window.console || { log: function () {} };
function CropAvatar($element) {
this.$container = $element;
this.$avatarView = this.$container.find('.avatar-view');
this.$avatar = this.$avatarView.find('img');
this.$avatarModal = this.$container.find('#avatar-modal');
this.$loading = this.$container.find('.loading');
this.$avatarForm = this.$avatarModal.find('.avatar-form');
this.$avatarUpload = this.$avatarForm.find('.avatar-upload');
this.$avatarSrc = this.$avatarForm.find('.avatar-src');
this.$avatarData = this.$avatarForm.find('.avatar-data');
this.$avatarInput = this.$avatarForm.find('.avatar-input');
this.$avatarSave = this.$avatarForm.find('.avatar-save');
this.$avatarBtns = this.$avatarForm.find('button.avatar-btns');
this.$avatarWrapper = this.$avatarModal.find('.avatar-wrapper');
this.$avatarPreview = this.$avatarModal.find('.avatar-preview');
this.init();
}
CropAvatar.prototype = {
constructor: CropAvatar,
support: {
fileList: !!$('').prop('files'),
blobURLs: !!window.URL && URL.createObjectURL,
formData: !!window.FormData
},
init: function () {
this.support.datauri = this.support.fileList && this.support.blobURLs;
if (!this.support.formData) {
this.initIframe();
}
this.initTooltip();
this.initModal();
this.addListener();
},
addListener: function () {
this.$avatarView.on('click', $.proxy(this.click, this));
this.$avatarInput.on('change', $.proxy(this.change, this));
this.$avatarForm.on('submit', $.proxy(this.submit, this));
this.$avatarBtns.on('click', $.proxy(this.rotate, this));
},
initTooltip: function () {
this.$avatarView.tooltip({
placement: 'bottom'
});
},
initModal: function () {
this.$avatarModal.modal({
show: false
});
},
initPreview: function () {
var url = this.$avatar.attr('src');
this.$avatarPreview.html('');
},
initIframe: function () {
var target = 'upload-iframe-' + (new Date()).getTime();
var $iframe = $('