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652
vendor/gregwar/image/Gregwar/Image/Adapter/GD.php
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652
vendor/gregwar/image/Gregwar/Image/Adapter/GD.php
vendored
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@ -0,0 +1,652 @@
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<?php
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namespace Gregwar\Image\Adapter;
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use Gregwar\Image\Image;
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use Gregwar\Image\ImageColor;
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class GD extends Common
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{
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public static $gdTypes = array(
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'jpeg' => \IMG_JPG,
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'gif' => \IMG_GIF,
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'png' => \IMG_PNG,
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);
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protected function loadResource($resource)
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{
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parent::loadResource($resource);
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imagesavealpha($this->resource, true);
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}
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/**
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* Gets the width and the height for writing some text.
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*/
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public static function TTFBox($font, $text, $size, $angle = 0)
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{
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$box = imagettfbbox($size, $angle, $font, $text);
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return array(
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'width' => abs($box[2] - $box[0]),
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'height' => abs($box[3] - $box[5]),
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);
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}
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public function __construct()
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{
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parent::__construct();
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if (!(extension_loaded('gd') && function_exists('gd_info'))) {
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throw new \RuntimeException('You need to install GD PHP Extension to use this library');
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getName()
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{
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return 'GD';
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}
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/**
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* {@inheritdoc}
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*/
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public function fillBackground($background = 0xffffff)
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{
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$w = $this->width();
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$h = $this->height();
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$n = imagecreatetruecolor($w, $h);
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imagefill($n, 0, 0, ImageColor::gdAllocate($this->resource, $background));
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imagecopyresampled($n, $this->resource, 0, 0, 0, 0, $w, $h, $w, $h);
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imagedestroy($this->resource);
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$this->resource = $n;
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return $this;
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}
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/**
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* Do the image resize.
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*
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* @return $this
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*/
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protected function doResize($bg, $target_width, $target_height, $new_width, $new_height)
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{
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$width = $this->width();
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$height = $this->height();
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$n = imagecreatetruecolor($target_width, $target_height);
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if ($bg != 'transparent') {
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imagefill($n, 0, 0, ImageColor::gdAllocate($this->resource, $bg));
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} else {
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imagealphablending($n, false);
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$color = ImageColor::gdAllocate($this->resource, 'transparent');
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imagefill($n, 0, 0, $color);
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imagesavealpha($n, true);
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}
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imagecopyresampled($n, $this->resource, ($target_width - $new_width) / 2, ($target_height - $new_height) / 2, 0, 0, $new_width, $new_height, $width, $height);
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imagedestroy($this->resource);
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$this->resource = $n;
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function crop($x, $y, $width, $height)
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{
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$destination = imagecreatetruecolor($width, $height);
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imagealphablending($destination, false);
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imagesavealpha($destination, true);
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imagecopy($destination, $this->resource, 0, 0, $x, $y, $this->width(), $this->height());
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imagedestroy($this->resource);
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$this->resource = $destination;
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function negate()
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{
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imagefilter($this->resource, IMG_FILTER_NEGATE);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function brightness($brightness)
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{
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imagefilter($this->resource, IMG_FILTER_BRIGHTNESS, $brightness);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function contrast($contrast)
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{
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imagefilter($this->resource, IMG_FILTER_CONTRAST, $contrast);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function grayscale()
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{
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imagefilter($this->resource, IMG_FILTER_GRAYSCALE);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function emboss()
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{
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imagefilter($this->resource, IMG_FILTER_EMBOSS);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function smooth($p)
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{
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imagefilter($this->resource, IMG_FILTER_SMOOTH, $p);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function sharp()
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{
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imagefilter($this->resource, IMG_FILTER_MEAN_REMOVAL);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function edge()
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{
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imagefilter($this->resource, IMG_FILTER_EDGEDETECT);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function colorize($red, $green, $blue)
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{
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imagefilter($this->resource, IMG_FILTER_COLORIZE, $red, $green, $blue);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function sepia()
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{
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imagefilter($this->resource, IMG_FILTER_GRAYSCALE);
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imagefilter($this->resource, IMG_FILTER_COLORIZE, 100, 50, 0);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function gaussianBlur($blurFactor = 1)
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{
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$blurFactor = round($blurFactor); // blurFactor has to be an integer
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$originalWidth = $this->width();
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$originalHeight = $this->height();
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$smallestWidth = ceil($originalWidth * pow(0.5, $blurFactor));
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$smallestHeight = ceil($originalHeight * pow(0.5, $blurFactor));
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// for the first run, the previous image is the original input
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$prevImage = $this->resource;
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$prevWidth = $originalWidth;
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$prevHeight = $originalHeight;
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// scale way down and gradually scale back up, blurring all the way
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for ($i = 0; $i < $blurFactor; ++$i) {
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// determine dimensions of next image
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$nextWidth = $smallestWidth * pow(2, $i);
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$nextHeight = $smallestHeight * pow(2, $i);
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// resize previous image to next size
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$nextImage = imagecreatetruecolor($nextWidth, $nextHeight);
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imagecopyresized($nextImage, $prevImage, 0, 0, 0, 0,
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$nextWidth, $nextHeight, $prevWidth, $prevHeight);
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// apply blur filter
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imagefilter($nextImage, IMG_FILTER_GAUSSIAN_BLUR);
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// now the new image becomes the previous image for the next step
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$prevImage = $nextImage;
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$prevWidth = $nextWidth;
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$prevHeight = $nextHeight;
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}
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// scale back to original size and blur one more time
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imagecopyresized($this->resource, $nextImage,
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0, 0, 0, 0, $originalWidth, $originalHeight, $nextWidth, $nextHeight);
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imagefilter($this->resource, IMG_FILTER_GAUSSIAN_BLUR);
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// clean up
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imagedestroy($prevImage);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function merge(Image $other, $x = 0, $y = 0, $width = null, $height = null)
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{
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$other = clone $other;
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$other->init();
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$other->applyOperations();
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imagealphablending($this->resource, true);
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if (null == $width) {
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$width = $other->width();
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}
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if (null == $height) {
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$height = $other->height();
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}
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imagecopyresampled($this->resource, $other->getAdapter()->getResource(), $x, $y, 0, 0, $width, $height, $width, $height);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function rotate($angle, $background = 0xffffff)
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{
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$this->resource = imagerotate($this->resource, $angle, ImageColor::gdAllocate($this->resource, $background));
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imagealphablending($this->resource, true);
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imagesavealpha($this->resource, true);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function fill($color = 0xffffff, $x = 0, $y = 0)
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{
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imagealphablending($this->resource, false);
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imagefill($this->resource, $x, $y, ImageColor::gdAllocate($this->resource, $color));
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function write($font, $text, $x = 0, $y = 0, $size = 12, $angle = 0, $color = 0x000000, $align = 'left')
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{
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imagealphablending($this->resource, true);
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if ($align != 'left') {
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$sim_size = self::TTFBox($font, $text, $size, $angle);
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if ($align == 'center') {
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$x -= $sim_size['width'] / 2;
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}
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if ($align == 'right') {
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$x -= $sim_size['width'];
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}
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}
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imagettftext($this->resource, $size, $angle, $x, $y, ImageColor::gdAllocate($this->resource, $color), $font, $text);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function rectangle($x1, $y1, $x2, $y2, $color, $filled = false)
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{
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if ($filled) {
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imagefilledrectangle($this->resource, $x1, $y1, $x2, $y2, ImageColor::gdAllocate($this->resource, $color));
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} else {
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imagerectangle($this->resource, $x1, $y1, $x2, $y2, ImageColor::gdAllocate($this->resource, $color));
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function roundedRectangle($x1, $y1, $x2, $y2, $radius, $color, $filled = false)
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{
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if ($color) {
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$color = ImageColor::gdAllocate($this->resource, $color);
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}
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if ($filled == true) {
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imagefilledrectangle($this->resource, $x1 + $radius, $y1, $x2 - $radius, $y2, $color);
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imagefilledrectangle($this->resource, $x1, $y1 + $radius, $x1 + $radius - 1, $y2 - $radius, $color);
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imagefilledrectangle($this->resource, $x2 - $radius + 1, $y1 + $radius, $x2, $y2 - $radius, $color);
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imagefilledarc($this->resource, $x1 + $radius, $y1 + $radius, $radius * 2, $radius * 2, 180, 270, $color, IMG_ARC_PIE);
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imagefilledarc($this->resource, $x2 - $radius, $y1 + $radius, $radius * 2, $radius * 2, 270, 360, $color, IMG_ARC_PIE);
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imagefilledarc($this->resource, $x1 + $radius, $y2 - $radius, $radius * 2, $radius * 2, 90, 180, $color, IMG_ARC_PIE);
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imagefilledarc($this->resource, $x2 - $radius, $y2 - $radius, $radius * 2, $radius * 2, 360, 90, $color, IMG_ARC_PIE);
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} else {
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imageline($this->resource, $x1 + $radius, $y1, $x2 - $radius, $y1, $color);
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imageline($this->resource, $x1 + $radius, $y2, $x2 - $radius, $y2, $color);
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imageline($this->resource, $x1, $y1 + $radius, $x1, $y2 - $radius, $color);
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imageline($this->resource, $x2, $y1 + $radius, $x2, $y2 - $radius, $color);
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imagearc($this->resource, $x1 + $radius, $y1 + $radius, $radius * 2, $radius * 2, 180, 270, $color);
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imagearc($this->resource, $x2 - $radius, $y1 + $radius, $radius * 2, $radius * 2, 270, 360, $color);
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imagearc($this->resource, $x1 + $radius, $y2 - $radius, $radius * 2, $radius * 2, 90, 180, $color);
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imagearc($this->resource, $x2 - $radius, $y2 - $radius, $radius * 2, $radius * 2, 360, 90, $color);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function line($x1, $y1, $x2, $y2, $color = 0x000000)
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{
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imageline($this->resource, $x1, $y1, $x2, $y2, ImageColor::gdAllocate($this->resource, $color));
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function ellipse($cx, $cy, $width, $height, $color = 0x000000, $filled = false)
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{
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if ($filled) {
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imagefilledellipse($this->resource, $cx, $cy, $width, $height, ImageColor::gdAllocate($this->resource, $color));
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} else {
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imageellipse($this->resource, $cx, $cy, $width, $height, ImageColor::gdAllocate($this->resource, $color));
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function circle($cx, $cy, $r, $color = 0x000000, $filled = false)
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{
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return $this->ellipse($cx, $cy, $r, $r, ImageColor::gdAllocate($this->resource, $color), $filled);
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}
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/**
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* {@inheritdoc}
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*/
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public function polygon(array $points, $color, $filled = false)
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{
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if ($filled) {
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imagefilledpolygon($this->resource, $points, count($points) / 2, ImageColor::gdAllocate($this->resource, $color));
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} else {
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imagepolygon($this->resource, $points, count($points) / 2, ImageColor::gdAllocate($this->resource, $color));
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function flip($flipVertical, $flipHorizontal)
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{
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if (!$flipVertical && !$flipHorizontal) {
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return $this;
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}
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if (function_exists('imageflip')) {
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if ($flipVertical && $flipHorizontal) {
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$flipMode = \IMG_FLIP_BOTH;
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} elseif ($flipVertical && !$flipHorizontal) {
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$flipMode = \IMG_FLIP_VERTICAL;
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} elseif (!$flipVertical && $flipHorizontal) {
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$flipMode = \IMG_FLIP_HORIZONTAL;
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}
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imageflip($this->resource, $flipMode);
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} else {
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$width = $this->width();
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$height = $this->height();
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$src_x = 0;
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$src_y = 0;
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$src_width = $width;
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$src_height = $height;
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if ($flipVertical) {
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$src_y = $height - 1;
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$src_height = -$height;
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}
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if ($flipHorizontal) {
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$src_x = $width - 1;
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$src_width = -$width;
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}
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$imgdest = imagecreatetruecolor($width, $height);
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imagealphablending($imgdest, false);
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imagesavealpha($imgdest, true);
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||||
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if (imagecopyresampled($imgdest, $this->resource, 0, 0, $src_x, $src_y, $width, $height, $src_width, $src_height)) {
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imagedestroy($this->resource);
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||||
$this->resource = $imgdest;
|
||||
}
|
||||
}
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function width()
|
||||
{
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||||
if (null === $this->resource) {
|
||||
$this->init();
|
||||
}
|
||||
|
||||
return imagesx($this->resource);
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function height()
|
||||
{
|
||||
if (null === $this->resource) {
|
||||
$this->init();
|
||||
}
|
||||
|
||||
return imagesy($this->resource);
|
||||
}
|
||||
|
||||
protected function createImage($width, $height)
|
||||
{
|
||||
$this->resource = imagecreatetruecolor($width, $height);
|
||||
}
|
||||
|
||||
protected function createImageFromData($data)
|
||||
{
|
||||
$this->resource = @imagecreatefromstring($data);
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts the image to true color.
|
||||
*/
|
||||
protected function convertToTrueColor()
|
||||
{
|
||||
if (!imageistruecolor($this->resource)) {
|
||||
if (function_exists('imagepalettetotruecolor')) {
|
||||
// Available in PHP 5.5
|
||||
imagepalettetotruecolor($this->resource);
|
||||
} else {
|
||||
$transparentIndex = imagecolortransparent($this->resource);
|
||||
|
||||
$w = $this->width();
|
||||
$h = $this->height();
|
||||
|
||||
$img = imagecreatetruecolor($w, $h);
|
||||
imagecopy($img, $this->resource, 0, 0, 0, 0, $w, $h);
|
||||
|
||||
if ($transparentIndex != -1) {
|
||||
$width = $this->width();
|
||||
$height = $this->height();
|
||||
|
||||
imagealphablending($img, false);
|
||||
imagesavealpha($img, true);
|
||||
|
||||
for ($x = 0; $x < $width; ++$x) {
|
||||
for ($y = 0; $y < $height; ++$y) {
|
||||
if (imagecolorat($this->resource, $x, $y) == $transparentIndex) {
|
||||
imagesetpixel($img, $x, $y, 127 << 24);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
$this->resource = $img;
|
||||
}
|
||||
}
|
||||
|
||||
imagesavealpha($this->resource, true);
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function saveGif($file)
|
||||
{
|
||||
$transColor = imagecolorallocatealpha($this->resource, 255, 255, 255, 127);
|
||||
imagecolortransparent($this->resource, $transColor);
|
||||
imagegif($this->resource, $file);
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function savePng($file)
|
||||
{
|
||||
imagepng($this->resource, $file);
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function saveWebp($file, $quality)
|
||||
{
|
||||
imagewebp($this->resource, $file, $quality);
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function saveJpeg($file, $quality)
|
||||
{
|
||||
imagejpeg($this->resource, $file, $quality);
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Try to open the file using jpeg.
|
||||
*/
|
||||
protected function openJpeg($file)
|
||||
{
|
||||
if (file_exists($file) && filesize($file)) {
|
||||
$this->resource = @imagecreatefromjpeg($file);
|
||||
} else {
|
||||
$this->resource = false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Try to open the file using gif.
|
||||
*/
|
||||
protected function openGif($file)
|
||||
{
|
||||
if (file_exists($file) && filesize($file)) {
|
||||
$this->resource = @imagecreatefromgif($file);
|
||||
} else {
|
||||
$this->resource = false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Try to open the file using PNG.
|
||||
*/
|
||||
protected function openPng($file)
|
||||
{
|
||||
if (file_exists($file) && filesize($file)) {
|
||||
$this->resource = @imagecreatefrompng($file);
|
||||
} else {
|
||||
$this->resource = false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Does this adapter supports type ?
|
||||
*/
|
||||
protected function supports($type)
|
||||
{
|
||||
return imagetypes() & self::$gdTypes[$type];
|
||||
}
|
||||
|
||||
protected function getColor($x, $y)
|
||||
{
|
||||
return imagecolorat($this->resource, $x, $y);
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function enableProgressive()
|
||||
{
|
||||
imageinterlace($this->resource, 1);
|
||||
|
||||
return $this;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user