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357 lines
9.6 KiB
357 lines
9.6 KiB
7 years ago
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<?php
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/**
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* Part of the Fuel framework.
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*
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* @package Fuel
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* @version 1.8
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* @author Fuel Development Team
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* @license MIT License
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* @copyright 2010 - 2016 Fuel Development Team
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* @link http://fuelphp.com
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*/
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namespace Fuel\Core;
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class Image_Imagemagick extends \Image_Driver
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{
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protected $image_temp = null;
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protected $accepted_extensions = array('png', 'gif', 'jpg', 'jpeg');
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protected $sizes_cache = null;
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protected $im_path = null;
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public function load($filename, $return_data = false, $force_extension = false)
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{
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extract(parent::load($filename, $return_data, $force_extension));
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$this->clear_sizes();
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if (empty($this->image_temp))
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{
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do
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{
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$this->image_temp = $this->config['temp_dir'].substr($this->config['temp_append'].md5(time() * microtime()), 0, 32).'.png';
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}
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while (is_file($this->image_temp));
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}
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elseif (is_file($this->image_temp))
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{
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$this->debug('Removing previous temporary image.');
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unlink($this->image_temp);
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}
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$this->debug('Temp file: '.$this->image_temp);
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if ( ! is_dir($this->config['temp_dir']))
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{
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throw new \RuntimeException("The temp directory that was given does not exist.");
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}
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elseif (!touch($this->config['temp_dir'] . $this->config['temp_append'] . '_touch'))
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{
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throw new \RuntimeException("Could not write in the temp directory.");
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}
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$this->exec('convert', '"'.$image_fullpath.'"[0] "'.$this->image_temp.'"');
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return $this;
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}
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protected function _crop($x1, $y1, $x2, $y2)
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{
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extract(parent::_crop($x1, $y1, $x2, $y2));
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$image = '"'.$this->image_temp.'"';
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$this->exec('convert', $image.' -crop '.($x2 - $x1).'x'.($y2 - $y1).'+'.$x1.'+'.$y1.' +repage '.$image);
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$this->clear_sizes();
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}
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protected function _resize($width, $height = null, $keepar = true, $pad = true)
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{
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extract(parent::_resize($width, $height, $keepar, $pad));
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$image = '"'.$this->image_temp.'"';
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$this->exec('convert', "-define png:size=".$cwidth."x".$cheight." ".$image." ".
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"-background none ".
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"-resize \"".($pad ? $width : $cwidth)."x".($pad ? $height : $cheight)."!\" ".
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"-gravity center ".
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"-extent ".$cwidth."x".$cheight." ".$image);
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$this->clear_sizes();
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}
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protected function _rotate($degrees)
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{
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extract(parent::_rotate($degrees));
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$image = '"'.$this->image_temp.'"';
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$this->exec('convert', $image." -background none -virtual-pixel background +distort ScaleRotateTranslate ".$degrees." +repage ".$image);
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$this->clear_sizes();
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}
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protected function _flip($direction)
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{
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switch ($direction)
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{
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case 'vertical':
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$arg = '-flip';
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break;
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case 'horizontal':
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$arg = '-flop';
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break;
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case 'both':
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$arg = '-flip -flop';
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break;
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default: return false;
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}
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$image = '"'.$this->image_temp.'"';
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$this->exec('convert', $image.' '.$arg.' '.$image);
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}
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protected function _watermark($filename, $position, $padding = 5)
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{
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$values = parent::_watermark($filename, $position, $padding);
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if ($values == false)
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{
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throw new \InvalidArgumentException("Watermark image not found or invalid filetype.");
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}
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extract($values);
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$x >= 0 and $x = '+'.$x;
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$y >= 0 and $y = '+'.$y;
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$image = '"'.$this->image_temp.'"';
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$this->exec(
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'composite',
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'-compose atop -geometry '.$x.$y.' '.
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'-dissolve '.$this->config['watermark_alpha'].'% '.
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'"'.$filename.'" "'.$this->image_temp.'" '.$image
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);
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}
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protected function _border($size, $color = null)
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{
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extract(parent::_border($size, $color));
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$image = '"'.$this->image_temp.'"';
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$color = $this->create_color($color, 100);
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$command = $image.' -compose copy -bordercolor '.$color.' -border '.$size.'x'.$size.' '.$image;
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$this->exec('convert', $command);
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$this->clear_sizes();
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}
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protected function _mask($maskimage)
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{
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extract(parent::_mask($maskimage));
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$mimage = '"'.$maskimage.'"';
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$image = '"'.$this->image_temp.'"';
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$command = $image.' '.$mimage.' +matte -compose copy-opacity -composite '.$image;
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$this->exec('convert', $command);
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}
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/**
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* Credit to Leif Åstrand <leif@sitelogic.fi> for the base of the round corners.
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*
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* Note there is a defect with this, as non-transparent corners get opaque circles of color. Maybe mask it with auto-generated corners?
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*
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* @link http://www.imagemagick.org/Usage/thumbnails/#rounded
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*/
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protected function _rounded($radius, $sides, $antialias = 0)
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{
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extract(parent::_rounded($radius, $sides, null));
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$image = '"'.$this->image_temp.'"';
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$r = $radius;
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$command = $image." \\( +clone -alpha extract ".
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( ! $tr ? '' : "-draw \"fill black polygon 0,0 0,$r $r,0 fill white circle $r,$r $r,0\" ")."-flip ".
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( ! $br ? '' : "-draw \"fill black polygon 0,0 0,$r $r,0 fill white circle $r,$r $r,0\" ")."-flop ".
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( ! $bl ? '' : "-draw \"fill black polygon 0,0 0,$r $r,0 fill white circle $r,$r $r,0\" ")."-flip ".
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( ! $tl ? '' : "-draw \"fill black polygon 0,0 0,$r $r,0 fill white circle $r,$r $r,0\" ").
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'\\) -alpha off -compose CopyOpacity -composite '.$image;
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$this->exec('convert', $command);
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}
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protected function _grayscale()
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{
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$image = '"'.$this->image_temp.'"';
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$this->exec('convert', $image." -colorspace Gray ".$image);
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}
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public function sizes($filename = null, $usecache = true)
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{
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$is_loaded_file = $filename == null;
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if ( ! $is_loaded_file or $this->sizes_cache == null or !$usecache)
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{
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$reason = ($filename != null ? "filename" : ($this->sizes_cache == null ? 'cache' : 'option'));
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$this->debug("Generating size of image... (triggered by $reason)");
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if ($is_loaded_file and ! empty($this->image_temp))
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{
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$filename = $this->image_temp;
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}
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$output = $this->exec('identify', '-format "%w %h" "'.$filename.'"[0]');
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list($width, $height) = explode(" ", $output[0]);
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$return = (object) array(
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'width' => $width,
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'height' => $height,
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);
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if ($is_loaded_file)
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{
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$this->sizes_cache = $return;
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}
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$this->debug("Sizes ".( !$is_loaded_file ? "for <code>$filename</code> " : "")."are now $width and $height");
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}
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else
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{
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$return = $this->sizes_cache;
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}
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return $return;
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}
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public function save($filename = null, $permissions = null)
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{
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extract(parent::save($filename, $permissions));
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$this->run_queue();
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$this->add_background();
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$filetype = $this->image_extension;
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$old = '"'.$this->image_temp.'"';
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$new = '"'.$filename.'"';
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if(($filetype == 'jpeg' or $filetype == 'jpg') and $this->config['quality'] != 100)
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{
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$quality = '"'.$this->config['quality'].'%"';
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$this->exec('convert', $old.' -quality '.$quality.' '.$new);
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}
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else
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{
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$this->exec('convert', $old.' '.$new);
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}
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if ($this->config['persistence'] === false)
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{
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$this->reload();
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}
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return $this;
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}
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public function output($filetype = null)
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{
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extract(parent::output($filetype));
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$this->run_queue();
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$this->add_background();
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$image = '"'.$this->image_temp.'"';
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if(($filetype == 'jpeg' or $filetype == 'jpg') and $this->config['quality'] != 100)
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{
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$quality = '"'.$this->config['quality'].'%"';
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$this->exec('convert', $image.' -quality '.$quality.' '.strtolower($filetype).':-', true);
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}
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elseif (substr($this->image_temp, -1 * strlen($filetype)) != $filetype)
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{
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if ( ! $this->config['debug'])
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{
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$this->exec('convert', $image.' '.strtolower($filetype).':-', true);
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}
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}
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else
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{
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if ( ! $this->config['debug'])
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{
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echo file_get_contents($this->image_temp);
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}
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}
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if ($this->config['persistence'] === false)
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{
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$this->reload();
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}
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return $this;
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}
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/**
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* Cleared the currently loaded sizes, used to removed cached sizes.
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*/
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protected function clear_sizes()
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{
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$this->sizes_cache = null;
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}
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protected function add_background()
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{
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if ($this->config['bgcolor'] != null)
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{
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$bgcolor = $this->config['bgcolor'] == null ? '#000' : $this->config['bgcolor'];
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$image = '"'.$this->image_temp.'"';
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$color = $this->create_color($bgcolor, 100);
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$sizes = $this->sizes();
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$command = '-size '.$sizes->width.'x'.$sizes->height.' '.'canvas:'.$color.' '.
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$image.' -composite '.$image;
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$this->exec('convert', $command);
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}
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}
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/**
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* Executes the specified imagemagick executable and returns the output.
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*
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* @param string $program The name of the executable.
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* @param string $params The parameters of the executable.
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* @param boolean $passthru Returns the output if false or pass it to browser.
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* @return mixed Either returns the output or returns nothing.
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*/
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protected function exec($program, $params, $passthru = false)
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{
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// Determine the path
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$this->im_path = realpath($this->config['imagemagick_dir'].$program);
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if ( ! $this->im_path)
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{
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$this->im_path = realpath($this->config['imagemagick_dir'].$program.'.exe');
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}
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if ( ! $this->im_path)
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{
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throw new \RuntimeException("imagemagick executables not found in ".$this->config['imagemagick_dir']);
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}
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$command = $this->im_path." ".$params;
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$this->debug("Running command: <code>$command</code>");
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$code = 0;
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$output = null;
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$passthru ? passthru($command) : exec($command, $output, $code);
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if ($code != 0)
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{
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throw new \FuelException("imagemagick failed to edit the image. Returned with $code.<br /><br />Command:\n <code>$command</code>");
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}
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return $output;
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}
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/**
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* Creates a new color usable by ImageMagick.
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*
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* @param string $hex The hex code of the color
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* @param integer $alpha The alpha of the color, 0 (trans) to 100 (opaque)
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* @return string rgba representation of the hex and alpha values.
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*/
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protected function create_color($hex, $alpha)
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{
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extract($this->create_hex_color($hex));
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return "\"rgba(".$red.", ".$green.", ".$blue.", ".round($alpha / 100, 2).")\"";
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}
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public function __destruct()
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{
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if (is_file($this->image_temp))
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{
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unlink($this->image_temp);
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}
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}
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}
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