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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Image;
use function count;
use function extension_loaded;
use function function_exists;
use function imagearc;
use function imagecolorallocate;
use function imagecopyresampled;
use function imagecreatefromstring;
use function imagecreatetruecolor;
use function imagedestroy;
use function imagefilledpolygon;
use function imagefilledrectangle;
use function imagejpeg;
use function imageline;
use function imagepng;
use function imagestring;
use function imagesx;
use function imagesy;
use const PHP_VERSION_ID;
final class ImageWrapper
{
/** @var resource */
private $image;
/**
* @param resource $image
*/
private function __construct($image)
{
$this->image = $image;
}
/**
* @return resource
*/
public function getImage()
{
return $this->image;
}
/**
* @param array<string, int>|null $background
* @psalm-param array{red: int, green: int, blue: int} $background
*/
public static function create(int $width, int $height, ?array $background = null): ?self
{
if (! extension_loaded('gd')) {
return null;
}
$image = imagecreatetruecolor($width, $height);
if ($image === false) {
return null;
}
if (! isset($background, $background['red'], $background['green'], $background['blue'])) {
return new self($image);
}
$backgroundColor = imagecolorallocate($image, $background['red'], $background['green'], $background['blue']);
if ($backgroundColor === false) {
imagedestroy($image);
return null;
}
if (! imagefilledrectangle($image, 0, 0, $width - 1, $height - 1, $backgroundColor)) {
imagedestroy($image);
return null;
}
return new self($image);
}
public static function fromString(string $data): ?self
{
if (! extension_loaded('gd')) {
return null;
}
$image = imagecreatefromstring($data);
if ($image === false) {
return null;
}
return new self($image);
}
public function arc(
int $centerX,
int $centerY,
int $width,
int $height,
int $startAngle,
int $endAngle,
int $color
): bool {
return imagearc($this->image, $centerX, $centerY, $width, $height, $startAngle, $endAngle, $color);
}
/**
* @return int|false
*/
public function colorAllocate(int $red, int $green, int $blue)
{
return imagecolorallocate($this->image, $red, $green, $blue);
}
public function copyResampled(
ImageWrapper $sourceImage,
int $destinationX,
int $destinationY,
int $sourceX,
int $sourceY,
int $destinationWidth,
int $destinationHeight,
int $sourceWidth,
int $sourceHeight
): bool {
return imagecopyresampled(
$this->image,
$sourceImage->getImage(),
$destinationX,
$destinationY,
$sourceX,
$sourceY,
$destinationWidth,
$destinationHeight,
$sourceWidth,
$sourceHeight
);
}
public function destroy(): bool
{
if (PHP_VERSION_ID >= 80000) {
return true;
}
return imagedestroy($this->image);
}
public function filledPolygon(array $points, int $color): bool
{
if (PHP_VERSION_ID < 80000) {
return imagefilledpolygon($this->image, $points, (int) (count($points) / 2), $color);
}
return imagefilledpolygon($this->image, $points, $color);
}
public function height(): int
{
return imagesy($this->image);
}
/**
* @param resource|string|null $file
*/
public function jpeg($file = null, int $quality = -1): bool
{
if (! function_exists('imagejpeg')) {
return false;
}
return imagejpeg($this->image, $file, $quality);
}
public function line(int $x1, int $y1, int $x2, int $y2, int $color): bool
{
return imageline($this->image, $x1, $y1, $x2, $y2, $color);
}
/**
* @param resource|string|null $file
*/
public function png($file = null, int $quality = -1, int $filters = -1): bool
{
if (! function_exists('imagepng')) {
return false;
}
return imagepng($this->image, $file, $quality, $filters);
}
public function string(int $font, int $x, int $y, string $string, int $color): bool
{
return imagestring($this->image, $font, $x, $y, $string, $color);
}
public function width(): int
{
return imagesx($this->image);
}
}
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