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<?php declare(strict_types=1); |
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namespace Suricate; |
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class Image |
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{ |
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use Traits\ImageFilter; |
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public $source; |
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private $destination; |
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private $width; |
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private $height; |
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public function load($filename) |
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{ |
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if (is_file($filename) && $imgString = file_get_contents($filename)) { |
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$imgString = imagecreatefromstring($imgString); |
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if ($imgString !== false) { |
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$this->source = $imgString; |
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$this->destination = $this->source; |
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$this->width = imagesx($this->source); |
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$this->height = imagesy($this->source); |
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return $this; |
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} |
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throw new \InvalidArgumentException('Cannot load ' . $filename . ', not an image'); |
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} |
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throw new \InvalidArgumentException('Cannot load ' . $filename . ', file unreadable'); |
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} |
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public function getWidth() |
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{ |
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return $this->width; |
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} |
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public function getHeight() |
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{ |
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return $this->height; |
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} |
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public function isPortrait() |
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{ |
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return $this->width < $this->height; |
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} |
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public function isLandscape() |
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{ |
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return $this->height < $this->width; |
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} |
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public function chain() |
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{ |
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$this->source = $this->destination; |
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$this->width = imagesx($this->source); |
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$this->height = imagesy($this->source); |
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return $this; |
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} |
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public function resize($width = null, $height = null) |
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{ |
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if ($this->source) { |
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if ($width == null) { |
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$width = intval(round(($height / $this->height) * $this->width, 0)); |
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} elseif ($height == null) { |
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$height = intval(round(($width / $this->width) * $this->height, 0)); |
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} |
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$this->destination = imagecreatetruecolor($width, $height); |
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if ($this->destination === false) { |
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throw new \RuntimeException("Can't create destination image"); |
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} |
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imagecopyresampled( |
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$this->destination, |
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$this->source, |
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0, |
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0, |
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0, |
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0, |
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$width, |
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$height, |
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$this->width, |
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$this->height |
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); |
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return $this->chain(); |
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} |
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return $this; |
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} |
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public function crop($width, $height) |
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{ |
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$centerX = round($this->width / 2); |
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$centerY = round($this->height / 2); |
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$cropWidthHalf = round($width / 2); |
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$cropHeightHalf = round($height / 2); |
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$x1 = intval(max(0, $centerX - $cropWidthHalf)); |
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$y1 = intval(max(0, $centerY - $cropHeightHalf)); |
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$this->destination = imagecreatetruecolor($width, $height); |
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if ($this->destination === false) { |
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throw new \RuntimeException("Can't create destination image"); |
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} |
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imagecopy($this->destination, $this->source, 0, 0, $x1, $y1, $width, $height); |
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return $this->chain(); |
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} |
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public function resizeCanvas($width, $height, $position = null, $color = [0, 0, 0]) |
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{ |
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$this->destination = imagecreatetruecolor($width, $height); |
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if ($this->destination === false) { |
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throw new \RuntimeException("Can't create destination image"); |
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} |
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$colorRes = imagecolorallocate($this->destination, $color[0], $color[1], $color[2]); |
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$imageObj = new Image(); |
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$imageObj->width = $width; |
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$imageObj->height = $height; |
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imagefill($this->destination, 0, 0, $colorRes); |
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if ($position !== null) { |
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list($x, $y) = $imageObj->getCoordinatesFromString($position, $this->width, $this->height); |
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} else { |
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$x = 0; |
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$y = 0; |
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} |
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imagecopy($this->destination, $this->source, $x, $y, 0, 0, $this->width, $this->height); |
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return $this->chain(); |
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} |
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public function rotate() |
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{ |
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} |
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public function mirror() |
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{ |
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} |
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public function flip() |
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{ |
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} |
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public function merge($source, $position = null, $x = null, $y = null, $percent = 100) |
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{ |
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if ($source instanceof \Suricate\Image) { |
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} else { |
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$source = with(new Image())->load($source); |
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} |
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if ($position !== null) { |
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list($x, $y) = $this->getCoordinatesFromString($position, $source->width, $source->height); |
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} |
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$x = $x !== null ? $x : 0; |
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$y = $y !== null ? $y : 0; |
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// Handle transparent image |
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// creating a cut resource |
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$cut = imagecreatetruecolor($source->getWidth(), $source->getHeight()); |
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if ($cut === false) { |
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throw new \RuntimeException("Can't create destination image"); |
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} |
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// copying relevant section from background to the cut resource |
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imagecopy($cut, $this->destination, 0, 0, $x, $y, $source->getWidth(), $source->getHeight()); |
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// copying relevant section from watermark to the cut resource |
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imagecopy($cut, $source->source, 0, 0, 0, 0, $source->getWidth(), $source->getHeight()); |
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imagecopymerge( |
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$this->destination, |
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$cut, |
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$x, |
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$y, |
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0, |
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0, |
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$source->getWidth(), |
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$source->getHeight(), |
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$percent |
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); |
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return $this->chain(); |
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} |
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public function writeText($text, $x = 0, $y = 0, \Closure $callback = null) |
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{ |
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if ($x < 0) { |
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$x = $this->width + $x; |
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} |
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if ($y < 0) { |
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$y = $this->height + $y; |
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} |
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$imageFont = new ImageFont($text); |
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if ($callback != null) { |
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$callback($imageFont); |
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} |
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$imageFont->apply($this->source, $x, $y); |
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return $this; |
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} |
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public function line($x1, $y1, $x2, $y2, \Closure $callback = null) |
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{ |
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$imageShape = new ImageShape(); |
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$imageShape->setImage($this->source); |
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if ($callback != null) { |
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$callback($imageShape); |
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} |
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$imageShape->drawLine($x1, $y1, $x2, $y2); |
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return $this; |
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} |
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public function save($filename, $outputType = null, $quality = 70) |
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{ |
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$result = false; |
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if ($outputType === null) { |
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$extension = pathinfo($filename, PATHINFO_EXTENSION); |
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} else { |
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$extension = $outputType; |
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} |
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if ($extension !== false) { |
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switch (strtolower($extension)) { |
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case 'jpg': |
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case 'jpeg': |
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$result = imagejpeg($this->source, $filename, $quality); |
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break; |
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case 'png': |
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$result = imagepng($this->source, $filename); |
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break; |
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case 'gif': |
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$result = imagegif($this->source, $filename); |
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break; |
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} |
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} |
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return $result; |
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} |
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private function getCoordinatesFromString($position, $offsetWidth = 0, $offsetHeight = 0) |
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{ |
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switch ($position) { |
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case 'top': |
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$x = floor(($this->width / 2) - ($offsetWidth / 2)); |
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$y = 0; |
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break; |
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case 'top-right': |
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$x = $this->width - $offsetWidth; |
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$y = 0; |
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break; |
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case 'left': |
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$x = 0; |
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$y = floor(($this->height / 2) - ($offsetHeight / 2)); |
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break; |
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case 'center': |
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$x = floor(($this->width / 2) - ($offsetWidth / 2)); |
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$y = floor(($this->height / 2) - ($offsetHeight / 2)); |
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break; |
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case 'right': |
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$x = $this->width - $offsetWidth; |
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$y = floor(($this->height / 2) - ($offsetHeight / 2)); |
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break; |
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case 'bottom-left': |
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$x = 0; |
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$y = $this->height - $offsetHeight; |
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break; |
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case 'bottom': |
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$x = floor(($this->width / 2) - ($offsetWidth / 2)); |
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$y = $this->height - $offsetHeight; |
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break; |
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case 'bottom-right': |
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$x = $this->width - $offsetWidth; |
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$y = $this->height - $offsetHeight; |
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break; |
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case 'top-left': |
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default: |
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$x = 0; |
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$y = 0; |
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break; |
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} |
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return [$x, $y]; |
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} |
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} |
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