diff options
Diffstat (limited to 'include/derivative.inc.php')
| -rw-r--r-- | include/derivative.inc.php | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/include/derivative.inc.php b/include/derivative.inc.php new file mode 100644 index 000000000..11f1ebb76 --- /dev/null +++ b/include/derivative.inc.php @@ -0,0 +1,239 @@ +<?php +// +-----------------------------------------------------------------------+ +// | Piwigo - a PHP based photo gallery | +// +-----------------------------------------------------------------------+ +// | Copyright(C) 2008-2012 Piwigo Team http://piwigo.org | +// +-----------------------------------------------------------------------+ +// | This program is free software; you can redistribute it and/or modify | +// | it under the terms of the GNU General Public License as published by | +// | the Free Software Foundation | +// | | +// | This program is distributed in the hope that it will be useful, but | +// | WITHOUT ANY WARRANTY; without even the implied warranty of | +// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | +// | General Public License for more details. | +// | | +// | You should have received a copy of the GNU General Public License | +// | along with this program; if not, write to the Free Software | +// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | +// | USA. | +// +-----------------------------------------------------------------------+ + +final class SrcImage +{ + public $rel_path; + + public $coi=null; + private $size=null; + + function __construct($infos) + { + global $conf; + + $ext = get_extension($infos['path']); + if (in_array($ext, $conf['picture_ext'])) + { + $this->rel_path = $infos['path']; + } + elseif (!empty($infos['representative_ext'])) + { + $pi = pathinfo($infos['path']); + $file_wo_ext = get_filename_wo_extension($pi['basename']); + $this->rel_path = $pi['dirname'].'/pwg_representative/' + .$file_wo_ext.'.'.$infos['representative_ext']; + } + else + { + $this->rel_path = get_themeconf('mime_icon_dir').strtolower($ext).'.png'; + } + + $this->coi = @$infos['coi']; + if (isset($infos['width']) && isset($infos['height'])) + { + $this->size = array($infos['width'], $infos['height']); + } + } + + function has_size() + { + return $this->size != null; + } + + function get_size() + { + if ($this->size == null) + not_implemented(); // get size from file + return $this->size; + } +} + + + +final class DerivativeImage +{ + const SAME_AS_SRC = 0x10; + + public $src_image; + + private $requested_type; + + private $flags = 0; + private $params; + private $rel_path, $rel_url; + + function __construct($type, $src_image) + { + $this->src_image = $src_image; + if (is_string($type)) + { + $this->requested_type = $type; + $this->params = ImageStdParams::get_by_type($type); + } + else + { + $this->requested_type = IMG_CUSTOM; + $this->params = $type; + } + + self::build($src_image, $this->params, $this->rel_path, $this->rel_url, $this->flags); + } + + static function thumb_url($infos) + { + $src_image = new SrcImage($infos); + self::build($src_image, ImageStdParams::get_by_type(IMG_THUMB), $rel_path, $rel_url); + return get_root_url().$rel_url; + } + + static function url($type, $infos) + { + $src_image = new SrcImage($infos); + $params = is_string($type) ? ImageStdParams::get_by_type($type) : $type; + self::build($src_image, $params, $rel_path, $rel_url); + return get_root_url().$rel_url; + } + + static function get_all($infos) + { + $src_image = new SrcImage($infos); + $ret = array(); + foreach (ImageStdParams::get_defined_type_map() as $type => $params) + { + $derivative = new DerivativeImage($params, $src_image); + $ret[$type] = $derivative; + } + foreach (ImageStdParams::get_undefined_type_map() as $type => $type2) + { + $ret[$type] = $ret[$type2]; + } + + return $ret; + } + + private static function build($src, &$params, &$rel_path, &$rel_url, &$flags = null) + { + if ( $src->has_size() && $params->is_identity( $src->get_size() ) ) + { + // todo - what if we have a watermark maybe return a smaller size? + $flags |= self::SAME_AS_SRC; + $params = null; + $rel_path = $rel_url = $src->rel_path; + return; + } + + $tokens=array(); + $tokens[] = substr($params->type,0,2); + + if (!empty($src->coi)) + { + $tokens[] = 'ci'.$src->coi; + } + + if ($params->type==IMG_CUSTOM) + { + $params->add_url_tokens($tokens); + } + + $loc = $src->rel_path; + if (substr_compare($loc, './', 0, 2)==0) + { + $loc = substr($loc, 2); + } + elseif (substr_compare($loc, '../', 0, 3)==0) + { + $loc = substr($loc, 3); + } + $loc = substr_replace($loc, '-'.implode('_', $tokens), strrpos($loc, '.'), 0 ); + + $rel_path = PWG_DERIVATIVE_DIR.$loc; + + global $conf; + $url_style=$conf['derivative_url_style']; + if (!$url_style) + { + $mtime = @filemtime(PHPWG_ROOT_PATH.$rel_path); + if ($mtime===false or $mtime < $params->last_mod_time) + { + $url_style = 2; + } + else + { + $url_style = 1; + } + } + + if ($url_style == 2) + { + $rel_url = 'i'; + if ($conf['php_extension_in_urls']) $rel_url .= '.php'; + if ($conf['question_mark_in_urls']) $rel_url .= '?'; + $rel_url .= '/'.$loc; + } + else + { + $rel_url = $rel_path; + } + } + + function get_url() + { + return get_root_url().$this->rel_url; + } + + function same_as_source() + { + return $this->flags & self::SAME_AS_SRC; + } + + + /* returns the size of the derivative image*/ + function get_size() + { + if ($this->flags & self::SAME_AS_SRC) + { + return $this->src_image->get_size(); + } + return $this->params->compute_final_size($this->src_image->get_size(), $this->src_image->coi); + } + + function get_size_htm() + { + $size = $this->get_size(); + if ($size) + { + return 'width="'.$size[0].'" height="'.$size[1].'"'; + } + } + + function get_size_hr() + { + $size = $this->get_size(); + if ($size) + { + return $size[0].' x '.$size[1]; + } + } + +} + +?>
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