389 lines
8.8 KiB
PHP
389 lines
8.8 KiB
PHP
<?php
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/**
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* @package OpenCart
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* @author Daniel Kerr
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* @copyright Copyright (c) 2005 - 2022, OpenCart, Ltd. (https://www.opencart.com/)
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* @license https://opensource.org/licenses/GPL-3.0
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* @link https://www.opencart.com
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*/
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namespace Opencart\System\Library;
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/**
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* Class Image
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*/
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class Image {
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/**
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* @var string
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*/
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private string $file;
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/**
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* @var object|false|\GdImage|resource
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*/
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private object $image;
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/**
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* @var int|mixed
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*/
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private int $width;
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/**
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* @var int|mixed
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*/
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private int $height;
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/**
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* @var string|mixed
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*/
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private string $bits;
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/**
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* @var string|mixed
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*/
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private string $mime;
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/**
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* Constructor
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*
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* @param string $file
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*
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*/
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public function __construct(string $file) {
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if (!extension_loaded('gd')) {
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exit('Error: PHP GD is not installed!');
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}
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if (is_file($file)) {
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$this->file = $file;
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$info = getimagesize($file);
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$this->width = $info[0];
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$this->height = $info[1];
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$this->bits = isset($info['bits']) ? $info['bits'] : '';
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$this->mime = isset($info['mime']) ? $info['mime'] : '';
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if ($this->mime == 'image/gif') {
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$this->image = imagecreatefromgif($file);
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} elseif ($this->mime == 'image/png') {
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$this->image = imagecreatefrompng($file);
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imageinterlace($this->image, false);
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} elseif ($this->mime == 'image/jpeg') {
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$this->image = imagecreatefromjpeg($file);
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} elseif ($this->mime == 'image/webp') {
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$this->image = imagecreatefromwebp($file);
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}
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} else {
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throw new \Exception('Error: Could not load image ' . $file . '!');
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}
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}
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/**
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* getFile
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*
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* @return string
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*/
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public function getFile(): string {
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return $this->file;
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}
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/**
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* getImage
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*
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* @return object
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*/
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public function getImage(): object {
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return $this->image;
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}
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/**
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* getWidth
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*
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* @return int
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*/
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public function getWidth(): int {
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return $this->width;
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}
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/**
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* getHeight
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*
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* @return int
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*/
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public function getHeight(): int {
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return $this->height;
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}
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/**
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* getBits
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*
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* @return string
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*/
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public function getBits(): string {
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return $this->bits;
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}
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/**
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* getMime
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*
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* @return string
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*/
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public function getMime(): string {
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return $this->mime;
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}
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/**
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* Save
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*
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* @param string $file
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* @param int $quality
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*
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* @return void
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*/
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public function save(string $file, int $quality = 90): void {
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$info = pathinfo($file);
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$extension = strtolower($info['extension']);
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if (is_object($this->image) || is_resource($this->image)) {
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if ($extension == 'jpeg' || $extension == 'jpg') {
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imagejpeg($this->image, $file, $quality);
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} elseif ($extension == 'png') {
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imagepng($this->image, $file);
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} elseif ($extension == 'gif') {
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imagegif($this->image, $file);
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} elseif ($extension == 'webp') {
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imagewebp($this->image, $file);
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}
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imagedestroy($this->image);
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}
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}
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/**
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* Resize
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*
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* @param int $width
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* @param int $height
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* @param string $default
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*
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* @return void
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*/
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public function resize(int $width = 0, int $height = 0, string $default = ''): void {
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if (!$this->width || !$this->height) {
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return;
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}
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$xpos = 0;
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$ypos = 0;
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$scale = 1;
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$scale_w = $width / $this->width;
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$scale_h = $height / $this->height;
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if ($default == 'w') {
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$scale = $scale_w;
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} elseif ($default == 'h') {
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$scale = $scale_h;
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} else {
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$scale = min($scale_w, $scale_h);
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}
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if ($scale == 1 && $scale_h == $scale_w && ($this->mime != 'image/png' || $this->mime != 'image/webp')) {
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return;
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}
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$new_width = (int)($this->width * $scale);
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$new_height = (int)($this->height * $scale);
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$xpos = (int)(($width - $new_width) / 2);
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$ypos = (int)(($height - $new_height) / 2);
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$image_old = $this->image;
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$this->image = imagecreatetruecolor($width, $height);
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if ($this->mime == 'image/png') {
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imagealphablending($this->image, false);
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imagesavealpha($this->image, true);
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$background = imagecolorallocatealpha($this->image, 255, 255, 255, 127);
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imagecolortransparent($this->image, $background);
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} elseif ($this->mime == 'image/webp') {
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imagealphablending($this->image, false);
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imagesavealpha($this->image, true);
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$background = imagecolorallocatealpha($this->image, 255, 255, 255, 127);
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imagecolortransparent($this->image, $background);
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} else {
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$background = imagecolorallocate($this->image, 255, 255, 255);
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}
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imagefilledrectangle($this->image, 0, 0, $width, $height, $background);
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imagecopyresampled($this->image, $image_old, $xpos, $ypos, 0, 0, $new_width, $new_height, $this->width, $this->height);
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imagedestroy($image_old);
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$this->width = $width;
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$this->height = $height;
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}
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/**
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* Watermark
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*
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* @param object $watermark
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* @param string $position
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*
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* @return void
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*/
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public function watermark(\Opencart\System\Library\Image $watermark, string $position = 'bottomright'): void {
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switch ($position) {
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case 'topleft':
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$watermark_pos_x = 0;
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$watermark_pos_y = 0;
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break;
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case 'topcenter':
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$watermark_pos_x = (int)(($this->width - $watermark->getWidth()) / 2);
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$watermark_pos_y = 0;
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break;
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case 'topright':
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$watermark_pos_x = ($this->width - $watermark->getWidth());
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$watermark_pos_y = 0;
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break;
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case 'middleleft':
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$watermark_pos_x = 0;
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$watermark_pos_y = (int)(($this->height - $watermark->getHeight()) / 2);
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break;
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case 'middlecenter':
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$watermark_pos_x = (int)(($this->width - $watermark->getWidth()) / 2);
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$watermark_pos_y = (int)(($this->height - $watermark->getHeight()) / 2);
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break;
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case 'middleright':
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$watermark_pos_x = ($this->width - $watermark->getWidth());
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$watermark_pos_y = (int)(($this->height - $watermark->getHeight()) / 2);
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break;
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case 'bottomleft':
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$watermark_pos_x = 0;
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$watermark_pos_y = ($this->height - $watermark->getHeight());
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break;
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case 'bottomcenter':
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$watermark_pos_x = (int)(($this->width - $watermark->getWidth()) / 2);
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$watermark_pos_y = ($this->height - $watermark->getHeight());
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break;
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case 'bottomright':
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$watermark_pos_x = ($this->width - $watermark->getWidth());
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$watermark_pos_y = ($this->height - $watermark->getHeight());
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break;
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}
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imagealphablending($this->image, true);
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imagesavealpha($this->image, true);
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imagecopy($this->image, $watermark->getImage(), $watermark_pos_x, $watermark_pos_y, 0, 0, $watermark->getWidth(), $watermark->getHeight());
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imagedestroy($watermark->getImage());
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}
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/**
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* Crop
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*
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* @param int $top_x
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* @param int $top_y
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* @param int $bottom_x
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* @param int $bottom_y
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*
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* @return void
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*/
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public function crop(int $top_x, int $top_y, int $bottom_x, int $bottom_y): void {
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$image_old = $this->image;
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$this->image = imagecreatetruecolor($bottom_x - $top_x, $bottom_y - $top_y);
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imagecopy($this->image, $image_old, 0, 0, $top_x, $top_y, $this->width, $this->height);
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imagedestroy($image_old);
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$this->width = $bottom_x - $top_x;
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$this->height = $bottom_y - $top_y;
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}
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/**
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* Rotate
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*
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* @param int $degree
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* @param string $color
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*
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* @return void
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*/
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public function rotate(int $degree, string $color = 'FFFFFF'): void {
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$rgb = $this->html2rgb($color);
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$this->image = imagerotate($this->image, $degree, imagecolorallocate($this->image, $rgb[0], $rgb[1], $rgb[2]));
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$this->width = imagesx($this->image);
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$this->height = imagesy($this->image);
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}
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/**
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* Filter
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*
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* @return void
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*/
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private function filter(): void {
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$args = func_get_args();
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call_user_func_array('imagefilter', $args);
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}
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/**
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* Text
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*
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* @param string $text
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* @param int $x
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* @param int $y
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* @param int $size
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* @param string $color
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*
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* @return void
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*/
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private function text(string $text, int $x = 0, int $y = 0, int $size = 5, string $color = '000000'): void {
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$rgb = $this->html2rgb($color);
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imagestring($this->image, $size, $x, $y, $text, imagecolorallocate($this->image, $rgb[0], $rgb[1], $rgb[2]));
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}
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/**
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* Merge
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*
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* @param object $merge
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* @param int $x
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* @param int $y
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* @param int $opacity
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*
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* @return void
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*/
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private function merge(object $merge, int $x = 0, int $y = 0, int $opacity = 100): void {
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imagecopymerge($this->image, $merge->getImage(), $x, $y, 0, 0, $merge->getWidth(), $merge->getHeight(), $opacity);
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}
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/**
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* HTML2RGB
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*
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* @param string $color
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*
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* @return array
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*/
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private function html2rgb(string $color): array {
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if ($color[0] == '#') {
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$color = substr($color, 1);
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}
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if (strlen($color) == 6) {
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[$r, $g, $b] = [$color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5]];
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} elseif (strlen($color) == 3) {
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[$r, $g, $b] = [$color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2]];
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} else {
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return [];
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}
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$r = hexdec($r);
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$g = hexdec($g);
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$b = hexdec($b);
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return [$r, $g, $b];
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}
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}
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