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<?php declare(strict_types=1); |
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namespace Compolomus\Compomage; |
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use Compolomus\Compomage\Interfaces\ImageInterface; |
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use Exception; |
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use InvalidArgumentException; |
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use LogicException; |
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use RangeException; |
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use SplFileObject; |
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class GD extends AbstractImage |
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{ |
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/** |
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* GD constructor. |
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* @param string $image |
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* @throws Exception |
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*/ |
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public function __construct(string $image) |
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{ |
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$this->init($image); |
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} |
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/** |
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* @param int $width |
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* @param int $height |
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* @return ImageInterface |
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* @throws Exception |
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*/ |
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public function resizeByTransparentBackground(int $width, int $height): ImageInterface |
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{ |
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$temp = new SplFileObject(tempnam(sys_get_temp_dir(), 'image' . mt_rand()), 'w+'); |
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imagepng($this->newImage($width, $height), $temp->getRealPath(), 9, PNG_ALL_FILTERS); |
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return $this->setBackground($width, $height, new Image($temp->getRealPath(), Image::GD)); |
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} |
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/** |
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* @param int $width |
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* @param int $height |
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* @return ImageInterface |
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* @throws Exception |
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*/ |
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public function resizeByBlurBackground(int $width, int $height): ImageInterface |
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{ |
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$background = new Image(base64_encode((string) $this), Image::GD); |
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$background->blur()->resize($width, $height); |
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return $this->setBackground($width, $height, $background); |
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} |
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/** |
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* @param int $level |
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* @return ImageInterface |
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*/ |
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public function brightness(int $level): ImageInterface |
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{ |
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if (!$this->compareRangeValue($level, 255)) |
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{ |
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throw new InvalidArgumentException('Wrong brightness level, range -255 - 255, ' . $level . ' given'); |
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} |
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imagefilter($this->getImage(), IMG_FILTER_BRIGHTNESS, $level); |
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return $this; |
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} |
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/** |
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* @param int $level |
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* @return ImageInterface |
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*/ |
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public function contrast(int $level): ImageInterface |
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{ |
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if (!$this->compareRangeValue($level, 100)) |
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{ |
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throw new InvalidArgumentException('Wrong contrast level, range -100 - 100, ' . $level . ' given'); |
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} |
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imagefilter($this->getImage(), IMG_FILTER_CONTRAST, $level); |
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return $this; |
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} |
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/** |
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* @return ImageInterface |
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*/ |
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public function negate(): ImageInterface |
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{ |
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imagefilter($this->getImage(), IMG_FILTER_NEGATE); |
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return $this; |
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} |
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/** |
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* @return ImageInterface |
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*/ |
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public function blur(): ImageInterface |
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{ |
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for ($i = 0; $i < 30; $i++) { |
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if ($i % 5 === 0) { |
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imagefilter($this->getImage(), IMG_FILTER_SMOOTH, -7); |
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} |
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imagefilter($this->getImage(), IMG_FILTER_GAUSSIAN_BLUR); |
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} |
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return $this; |
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} |
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/** |
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* @return ImageInterface |
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*/ |
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public function flip(): ImageInterface |
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{ |
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imageflip($this->getImage(), IMG_FLIP_VERTICAL); |
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return $this; |
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} |
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/** |
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* @return ImageInterface |
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*/ |
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public function flop(): ImageInterface |
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{ |
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imageflip($this->getImage(), IMG_FLIP_HORIZONTAL); |
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return $this; |
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} |
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/** |
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* @return ImageInterface |
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*/ |
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public function grayscale(): ImageInterface |
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{ |
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imagefilter($this->getImage(), IMG_FILTER_GRAYSCALE); |
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return $this; |
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} |
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/** |
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* @param string $text |
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* @param string $font |
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* @param string $position |
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* @return $this |
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* @throws InvalidArgumentException |
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* @throws Exception |
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*/ |
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public function copyright(string $text, string $font, string $position = 'SouthWest'): ImageInterface |
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{ |
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if (!array_key_exists(strtoupper($position), self::POSITIONS)) { |
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throw new InvalidArgumentException('Wrong position'); |
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} |
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imagecopymerge( |
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$this->getImage(), |
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$image = $this->prepareImage($text, $font), |
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(int) ((($this->getWidth() - imagesx($image)) / 2) * self::POSITIONS[strtoupper($position)]['x']) + self::POSITIONS[strtoupper($position)]['padX'], |
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(int) ((($this->getHeight() - imagesy($image)) / 2) * self::POSITIONS[strtoupper($position)]['y']) + self::POSITIONS[strtoupper($position)]['padY'], |
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0, |
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0, |
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$this->getWidth(), |
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$this->getHeight(), |
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80 |
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); |
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return $this; |
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} |
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/** |
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* @param string $text |
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* @param string $font |
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* @return resource |
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* @throws InvalidArgumentException |
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* @throws Exception |
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*/ |
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private function prepareImage(string $text, string $font) |
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{ |
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if (!$coordinates = imagettfbbox($fontSize = 15, 0, $font, $text)) { |
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throw new InvalidArgumentException('Does not support font'); |
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} |
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$minX = min([$coordinates[0], $coordinates[2], $coordinates[4], $coordinates[6]]); |
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$maxX = max([$coordinates[0], $coordinates[2], $coordinates[4], $coordinates[6]]); |
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$minY = min([$coordinates[1], $coordinates[3], $coordinates[5], $coordinates[7]]); |
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$maxY = max([$coordinates[1], $coordinates[3], $coordinates[5], $coordinates[7]]); |
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$textX = (int) abs($minX) + 1; |
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$textY = (int) abs($minY) + 1; |
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$image = $this->newImage($maxX - $minX + 2, $maxY - $minY + 2); |
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imagecolortransparent($image, $white = imagecolorallocate($image, 0, 0, 0)); |
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imagefilledrectangle($image, 0, 0, $this->getWidth(), 20, $white); |
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imagettftext($image, $fontSize, 0, $textX, $textY, $white, $font, $text); |
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imagettftext($image, $fontSize, 0, $textX + 1, $textY + 1, $blue = imagecolorallocate($image, 0, 128, 128), |
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$font, $text); |
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imagettftext($image, $fontSize, 0, $textX + 1, $textY + 1, $red = imagecolorallocate($image, 255, 0, 0), $font, |
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$text); |
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imagettftext($image, $fontSize, 0, $textX + 2, $textY + 2, $black = imagecolorallocate($image, 255, 255, 255), |
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$font, $text); |
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imagettftext($image, $fontSize, 0, $textX + 2, $textY + 2, $gray = imagecolorallocate($image, 128, 128, 128), |
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$font, $text); |
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return $image; |
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} |
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/** |
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* @param int $width |
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* @param int $height |
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* @return resource |
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*/ |
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protected function newImage(int $width, int $height) |
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{ |
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$newimage = imagecreatetruecolor($width, $height); |
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$transparent = imagecolorallocatealpha($newimage, 255, 255, 255, 127); |
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imagefill($newimage, 0, 0, $transparent); |
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imagealphablending($newimage, true); |
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imagesavealpha($newimage, true); |
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return $newimage; |
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} |
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/** |
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* @param int $width |
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* @param int $height |
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* @return ImageInterface |
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*/ |
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public function resize(int $width, int $height): ImageInterface |
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{ |
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$newimage = $this->newImage($width, $height); |
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imagecopyresampled($newimage, $this->getImage(), 0, 0, 0, 0, $width, $height, $this->getWidth(), |
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$this->getHeight()); |
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$this->setImage($newimage); |
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$this->setSizes(); |
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return $this; |
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} |
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protected function setSizes(): void |
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{ |
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$this->setWidth(imagesx($this->getImage())); |
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$this->setHeight(imagesy($this->getImage())); |
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$this->setOrientation(); |
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} |
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/** |
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* @param int $width |
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* @param int $height |
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* @param int $x |
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* @param int $y |
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* @return ImageInterface |
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*/ |
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public function crop(int $width, int $height, int $x, int $y): ImageInterface |
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{ |
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$width -= $x; |
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$height -= $y; |
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$newimage = $this->newImage($width, $height); |
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imagecopyresampled($newimage, $this->getImage(), 0, 0, $x, $y, $width, $height, $width, $height); |
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$this->setImage($newimage); |
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$this->setSizes(); |
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256
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return $this; |
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} |
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/** |
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* @param int $angle |
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* @return ImageInterface |
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*/ |
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public function rotate(int $angle = 90): ImageInterface |
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{ |
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$angle *= -1; |
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$transparent = imagecolorallocatealpha($this->image, 0, 0, 0, 127); |
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$rotate = imagerotate($this->getImage(), $angle, $transparent); |
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imagealphablending($rotate, true); |
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imagesavealpha($rotate, true); |
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$this->setImage($rotate); |
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$this->setSizes(); |
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return $this; |
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} |
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276
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/** |
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* @throws LogicException |
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* @throws RangeException |
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279
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* @return string |
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*/ |
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281
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public function __toString(): string |
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282
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{ |
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283
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$temp = new SplFileObject(tempnam(sys_get_temp_dir(), 'image' . mt_rand()), 'w+'); |
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284
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imagepng($this->getImage(), $temp->getRealPath(), 9, PNG_ALL_FILTERS); |
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285
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286
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return trim(file_get_contents($temp->getRealPath())); |
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} |
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/** |
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* @param string $filename |
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* @param int $quality |
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* @return bool |
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*/ |
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public function save(string $filename, $quality = 100): bool |
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295
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{ |
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return imagepng($this->getImage(), $filename . '.png', (int) ($quality / 11), PNG_ALL_FILTERS); |
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297
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} |
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298
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299
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/** |
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300
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* @param int $width |
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301
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* @param int $height |
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302
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* @param int $newWidth |
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* @param int $newHeight |
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304
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* @return ImageInterface |
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305
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*/ |
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306
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protected function prepareThumbnail( |
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307
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int $width, |
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int $height, |
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309
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int $newWidth = 0, |
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310
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int $newHeight = 0 |
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311
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): ImageInterface { |
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312
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imagecopyresampled( |
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313
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$newimage = $this->newImage($width, $height), |
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314
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$this->getImage(), |
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315
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|
|
0 - (int) (($newWidth - $width) / 2), |
|
316
|
|
|
0 - (int) (($newHeight - $height) / 2), |
|
317
|
|
|
0, |
|
318
|
|
|
0, |
|
319
|
|
|
$newWidth, |
|
320
|
|
|
$newHeight, |
|
321
|
|
|
$this->getWidth(), |
|
322
|
|
|
$this->getHeight() |
|
323
|
|
|
); |
|
324
|
|
|
$this->setImage($newimage); |
|
325
|
|
|
$this->setSizes(); |
|
326
|
|
|
|
|
327
|
|
|
return $this; |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
/** |
|
331
|
|
|
* @param string $source |
|
332
|
|
|
* @return ImageInterface |
|
333
|
|
|
* @throws InvalidArgumentException |
|
334
|
|
|
* @throws Exception |
|
335
|
|
|
*/ |
|
336
|
3 |
|
protected function tmp(string $source): ImageInterface |
|
337
|
|
|
{ |
|
338
|
3 |
|
if (!$image = @imagecreatefromstring($source)) { |
|
339
|
3 |
|
throw new InvalidArgumentException('Image create failed'); |
|
340
|
|
|
} |
|
341
|
|
|
$this->setImage($image); |
|
342
|
|
|
$this->setSizes(); |
|
343
|
|
|
// save transparent |
|
344
|
|
|
imagesavealpha($this->getImage(), true); |
|
345
|
|
|
imagealphablending($this->getImage(), false); |
|
346
|
|
|
|
|
347
|
|
|
return $this; |
|
348
|
|
|
} |
|
349
|
|
|
|
|
350
|
|
|
/** |
|
351
|
|
|
* @param ImageInterface $watermark |
|
352
|
|
|
* @param int $x |
|
353
|
|
|
* @param int $y |
|
354
|
|
|
* @return ImageInterface |
|
355
|
|
|
*/ |
|
356
|
|
|
protected function prepareWatermark($watermark, int $x, int $y): ImageInterface |
|
357
|
|
|
{ |
|
358
|
|
|
imagealphablending($this->getImage(), true); |
|
|
|
|
|
|
359
|
|
|
imagesavealpha($this->getImage(), true); |
|
|
|
|
|
|
360
|
|
|
imagecopyresampled( |
|
361
|
|
|
$this->getImage(), |
|
|
|
|
|
|
362
|
|
|
$watermark->getImage(), |
|
|
|
|
|
|
363
|
|
|
$x, |
|
364
|
|
|
$y, |
|
365
|
|
|
0, |
|
366
|
|
|
0, |
|
367
|
|
|
$width = $watermark->getWidth(), |
|
|
|
|
|
|
368
|
|
|
$height = $watermark->getHeight(), |
|
|
|
|
|
|
369
|
|
|
$width, |
|
370
|
|
|
$height |
|
371
|
|
|
); |
|
372
|
|
|
|
|
373
|
|
|
return $this; |
|
374
|
|
|
} |
|
375
|
|
|
} |
|
376
|
|
|
|
Compolomus /
Compomage
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