57 lines
2.1 KiB
PHP
57 lines
2.1 KiB
PHP
|
<?php
|
||
|
|
namespace Misuzu\Imaging;
|
||
|
|
|
||
|
|
use InvalidArgumentException;
|
||
|
|
use UnexpectedValueException;
|
||
|
|
|
||
|
|
abstract class Image {
|
||
|
|
public function __construct($pathOrWidth) {
|
||
|
|
if(!is_int($pathOrWidth) && !is_string($pathOrWidth))
|
||
|
|
throw new InvalidArgumentException('The first argument must be or type string to open an image file, or int to set a width for a new image.');
|
||
|
|
}
|
||
|
|
|
||
|
|
public static function create($pathOrWidth, int $height = -1): Image {
|
||
|
|
if(extension_loaded('imagick'))
|
||
|
|
return new ImagickImage($pathOrWidth, $height);
|
||
|
|
if(extension_loaded('gd'))
|
||
|
|
return new GdImage($pathOrWidth, $height);
|
||
|
|
throw new UnexpectedValueException('No image manipulation extensions are available.');
|
||
|
|
}
|
||
|
|
|
||
|
|
abstract public function getWidth(): int;
|
||
|
|
abstract public function getHeight(): int;
|
||
|
|
abstract public function hasFrames(): bool;
|
||
|
|
abstract public function next(): bool;
|
||
|
|
abstract public function resize(int $width, int $height): bool;
|
||
|
|
abstract public function crop(int $width, int $height, int $x, int $y): bool;
|
||
|
|
abstract public function setPage(int $width, int $height, int $x, int $y): bool;
|
||
|
|
abstract public function save(string $path): bool;
|
||
|
|
abstract public function destroy(): void;
|
||
|
|
|
||
|
|
public function squareCrop(int $dimensions): void {
|
||
|
|
$originalWidth = $this->getWidth();
|
||
|
|
$originalHeight = $this->getHeight();
|
||
|
|
|
||
|
|
if($originalWidth > $originalHeight) {
|
||
|
|
$targetWidth = $originalWidth * $dimensions / $originalHeight;
|
||
|
|
$targetHeight = $dimensions;
|
||
|
|
} else {
|
||
|
|
$targetWidth = $dimensions;
|
||
|
|
$targetHeight = $originalHeight * $dimensions / $originalWidth;
|
||
|
|
}
|
||
|
|
|
||
|
|
$targetWidth = intval($targetWidth);
|
||
|
|
$targetHeight = intval($targetHeight);
|
||
|
|
|
||
|
|
do {
|
||
|
|
$this->resize($targetWidth, $targetHeight);
|
||
|
|
$this->crop(
|
||
|
|
$dimensions, $dimensions,
|
||
|
|
ceil(($targetWidth - $dimensions) / 2),
|
||
|
|
ceil(($targetHeight - $dimensions) / 2)
|
||
|
|
);
|
||
|
|
$this->setPage($dimensions, $dimensions, 0, 0);
|
||
|
|
} while($this->next());
|
||
|
|
}
|
||
|
|
}
|