112 lines
2.9 KiB
PHP
112 lines
2.9 KiB
PHP
<?php
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namespace Misuzu\Imaging;
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use InvalidArgumentException;
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final class GdImage extends Image {
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private $gd;
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private int $type;
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private const CONSTRUCTORS = [
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IMAGETYPE_GIF => 'imagecreatefromgif',
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IMAGETYPE_JPEG => 'imagecreatefromjpeg',
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IMAGETYPE_PNG => 'imagecreatefrompng',
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IMAGETYPE_BMP => 'imagecreatefrombmp',
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IMAGETYPE_WBMP => 'imagecreatefromwbmp',
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IMAGETYPE_WEBP => 'imagecreatefromwebp',
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];
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private const SAVERS = [
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IMAGETYPE_GIF => 'imagegif',
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IMAGETYPE_JPEG => 'imagejpeg',
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IMAGETYPE_PNG => 'imagepng',
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IMAGETYPE_BMP => 'imagebmp',
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IMAGETYPE_WBMP => 'imagewbmp',
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IMAGETYPE_WEBP => 'imagewebp',
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];
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public function __construct($pathOrWidth, int $height = -1) {
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parent::__construct($pathOrWidth);
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if(is_int($pathOrWidth)) {
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$this->gd = imagecreatetruecolor($pathOrWidth, $height < 1 ? $pathOrWidth : $height);
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$this->type = IMAGETYPE_PNG;
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} elseif(is_string($pathOrWidth)) {
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$imageInfo = getimagesize($pathOrWidth);
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if($imageInfo !== false) {
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$this->type = $imageInfo[2];
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if(isset(self::CONSTRUCTORS[$this->type]))
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$this->gd = self::CONSTRUCTORS[$this->type]($pathOrWidth);
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}
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}
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if(!isset($this->gd)) {
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throw new InvalidArgumentException('Unsupported image format.');
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}
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}
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public function __destruct() {
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if(isset($this->gd))
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$this->destroy();
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}
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public function getWidth(): int {
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return imagesx($this->gd);
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}
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public function getHeight(): int {
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return imagesy($this->gd);
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}
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public function hasFrames(): bool {
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return false;
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}
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public function next(): bool {
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return false;
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}
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public function resize(int $width, int $height): bool {
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$resized = imagescale($this->gd, $width, $height, IMG_BICUBIC_FIXED);
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if($resized === false)
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return false;
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imagedestroy($this->gd);
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$this->gd = $resized;
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return true;
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}
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public function crop(int $width, int $height, int $x, int $y): bool {
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$cropped = imagecrop($this->gd, compact('width', 'height', 'x', 'y'));
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if($cropped === false)
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return false;
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imagedestroy($this->gd);
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$this->gd = $cropped;
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return true;
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}
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public function setPage(int $width, int $height, int $x, int $y): bool {
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return false;
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}
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public function save(string $path): bool {
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if(isset(self::SAVERS[$this->type]))
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return self::SAVERS[$this->type]($this->gd, $path);
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return false;
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}
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public function destroy(): void {
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if(imagedestroy($this->gd)) {
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$this->gd = null;
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$this->type = 0;
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}
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}
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}
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