Viewing file:  Resizeimage.php (6.5 KB) -rw-r--r--
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<?php
namespace App\libraries;
use DB;
/**
* Filename : Resizeimage.php
* Purpose : This is for resize images, create thumbnail image, add image over another image (only for GIF[image type 1], JPG[image type 2], PNG[image type 3] format)
* author : Rasel Ahmed < raselsub2001@gmail.com > Cell : +8801964843191
*/
class Resizeimage
{
public $name;
public $imagePath;
public $source;
public $success;
public $width;
public $height;
public $type;
public $thumb;
public $thumb_width;
public $thumb_height;
function Resizeimage($original=false)
{
$this->imagePath = $original;
}
/* function copyImage
*
* @params imagePath
* @return
*/
function copyImage($name)
{
// reverse the Dir
$name = strrev($name);
// Find the position of first '/'
$slashPos = strpos($name, '/img/' );
// Find the Substring of $name after first '/'
$fileDir = substr($name, $slashPos);
// reverse the substring to check directory
$fileDir = strrev($fileDir);
// Again reverse the string
$name = strrev($name);
if (is_dir($fileDir)) {
try {
copy($this->imagePath, $name);
}
catch (Exception $e) {
echo 'Cannot copy image '. $e->getMessage(). "\n";
}
}
}
/* function delete
*
* @param none
* @return none
*/
function delete()
{
try {
unlink($this->imagepath);
return 1;
}
catch (Exception $e) {
echo 'Cannot delete image'. $e->getMessage(). "\n";
}
}
/*
* funcion createthumbNail
*
* @param $name - filename
* @param $maxWidth - Maximum height of the width image
* @param $maxHeight - Maximum height of the resized image
* @param $proportion - check if aspect ratio should maintain; boolean true for check , false otherwise
* @param $logo_file - Additional image to add over resized image
* @param $dest_x (x coordinate) - postion of the additional image over resized image
* @param $dest_y (y coordinate) - postion of the additional image over resized image
* @return
*/
Public function doResize($name, $maxWidth, $maxHeight, $proportion = true, $logo_file=false, $dest_x=0, $dest_y=0)
{
$this->name = $name;
list($this->width, $this->height, $this->type) = getimagesize($this->imagePath);
$new_width = $maxWidth;
$new_height = $maxHeight;
if ($proportion) {
if ($this->width > $maxWidth || $this->height >$maxHeight){
$proportions = $this->width/$this->height;
if ($proportions > 1.25 || $proportions < 0.8) {
if ($this->width >$this->height) {
$new_width = $maxWidth;
$new_height = round($maxWidth/$proportions);
} else {
$new_height = $maxHeight;
$new_width = round($maxHeight*$proportions);
}
}
} else {
$new_width = $this->width;
$new_height = $this->height;
}
}
switch($this->type)
{
case 1:
//Create a new image from file, GIF Format.
$this->source = @ imagecreatefromgif($this->imagePath);
break;
case 2:
//Create a new image from file, JPEG Format.
$this->source = imagecreatefromjpeg($this->imagePath);
break;
case 3:
//Create a new image from file, PNG Format.
$this->source = imagecreatefrompng($this->imagePath);
break;
default:
$this->source = NULL;
}
if ($this->source) {
$this->thumb_width = $new_width;
$this->thumb_height = $new_height;
//create an image identifier representing a black image of size x_size by y_size.
$this->thumb = imagecreatetruecolor($this->thumb_width, $this->thumb_height);
// Resize the image
imagecopyresized($this->thumb, $this->source, 0, 0, 0, 0, $this->thumb_width, $this->thumb_height, $this->width, $this->height);
// Add image over resized image
if ($logo_file){
$logoImage = imagecreatefromgif($logo_file); // Get logo information
$logoW = imagesx($logoImage);
$logoH = imagesy($logoImage);
imagecopy($this->thumb, $logoImage, $dest_x, $dest_y, 0, 0, $logoW, $logoH);
}
// Save the image
switch($this->type)
{
case 1:
if (function_exists('imagegif'))
{
$this->success = imagegif($this->thumb, $this->name);
break;
}
$this->success = imagejpeg($this->thumb, $this->name, 50);
break;
case 2:
$this->success = imagejpeg($this->thumb, $this->name, 100);
break;
case 3:
$this->success = imagepng($this->thumb, $this->name);
break;
}
}
// Copy the image
$this->copyImage($this->name);
}
/**
* Purpose: check if the the uploaded file is of supported type
*
* @access public
* @param string $type -type of the uploaded file
* @return boolean $status -true if valid ,false otherwise
*/
public static function checkTypeValidity($type)
{
switch($type)
{
case 'image/pjpeg' : $status = true; break;
case 'image/jpeg' : $status = true; break;
case 'image/jpg' : $status = true; break;
case 'image/JPG' : $status = true; break;
case 'image/JPEG' : $status = true; break;
case 'image/png' : $status = true; break;
case 'image/x-png' : $status = true; break;
case 'image/gif' : $status = true; break;
default : $status = false; break;
}
return $status;
}
public static function makeFileName($extension, $start_string = '')
{
$file_name = '';
if ($extension[0] != '.') $extension = '.'.$extension;
while (1) {
$file_name = $start_string.rand(111, 999).time().$extension;
$exist = DB::table('files')->where('filename', '=', $file_name)->get();
if (count($exist) == 0) break;
}
return $file_name;
}
}
?>
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