[1612] | 1 | <?php |
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| 2 | // +-----------------------------------------------------------------------+ |
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[8728] | 3 | // | Piwigo - a PHP based photo gallery | |
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[2297] | 4 | // +-----------------------------------------------------------------------+ |
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[8728] | 5 | // | Copyright(C) 2008-2011 Piwigo Team http://piwigo.org | |
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[2297] | 6 | // | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net | |
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| 7 | // | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick | |
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| 8 | // +-----------------------------------------------------------------------+ |
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| 9 | // | This program is free software; you can redistribute it and/or modify | |
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| 10 | // | it under the terms of the GNU General Public License as published by | |
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| 11 | // | the Free Software Foundation | |
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| 12 | // | | |
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| 13 | // | This program is distributed in the hope that it will be useful, but | |
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| 14 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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| 15 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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| 16 | // | General Public License for more details. | |
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| 17 | // | | |
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| 18 | // | You should have received a copy of the GNU General Public License | |
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| 19 | // | along with this program; if not, write to the Free Software | |
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| 20 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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| 21 | // | USA. | |
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| 22 | // +-----------------------------------------------------------------------+ |
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[1612] | 23 | |
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| 24 | |
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| 25 | |
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[9366] | 26 | /* |
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| 27 | * Returns the name of a photo according to its name and its filename. |
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| 28 | * @param name string |
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| 29 | * @param filename string |
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| 30 | * @return string |
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| 31 | */ |
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| 32 | function get_image_name($name, $filename) |
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| 33 | { |
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| 34 | if (!empty($name)) |
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| 35 | { |
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| 36 | return $name; |
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| 37 | } |
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| 38 | else |
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| 39 | { |
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| 40 | return get_name_from_file($filename); |
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| 41 | } |
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| 42 | } |
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| 43 | |
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[1612] | 44 | /* |
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| 45 | * @param element_info array containing element information from db; |
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| 46 | * at least 'id', 'path', 'has_high' should be present |
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| 47 | */ |
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| 48 | function get_high_path($element_info) |
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| 49 | { |
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| 50 | $path = get_high_location($element_info); |
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| 51 | if (!empty($path) and !url_is_remote($path) ) |
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| 52 | { |
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| 53 | $path = PHPWG_ROOT_PATH.$path; |
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| 54 | } |
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| 55 | return $path; |
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| 56 | } |
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| 57 | |
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| 58 | /** |
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| 59 | * @param element_info array containing element information from db; |
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| 60 | * at least 'id', 'path', 'has_high' should be present |
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| 61 | */ |
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| 62 | function get_high_url($element_info) |
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| 63 | { |
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| 64 | $url = get_high_location($element_info); |
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| 65 | if (!empty($url) and !url_is_remote($url) ) |
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| 66 | { |
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[2026] | 67 | $url = embellish_url(get_root_url().$url); |
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[1612] | 68 | } |
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| 69 | // plugins want another url ? |
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| 70 | return trigger_event('get_high_url', $url, $element_info); |
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| 71 | } |
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| 72 | |
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| 73 | /** |
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| 74 | * @param element_info array containing element information from db; |
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| 75 | * at least 'id', 'path', 'has_high' should be present |
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| 76 | */ |
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| 77 | function get_high_location($element_info) |
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| 78 | { |
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| 79 | $location = ''; |
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| 80 | if ($element_info['has_high'] == 'true') |
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| 81 | { |
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| 82 | $pi = pathinfo($element_info['path']); |
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| 83 | $location=$pi['dirname'].'/pwg_high/'.$pi['basename']; |
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| 84 | } |
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| 85 | return trigger_event( 'get_high_location', $location, $element_info); |
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| 86 | } |
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| 87 | |
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| 88 | |
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| 89 | |
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[2218] | 90 | /* |
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| 91 | * get slideshow default params into array |
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| 92 | * |
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| 93 | * @param void |
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| 94 | * |
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| 95 | * @return slideshow default values into array |
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| 96 | */ |
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| 97 | function get_default_slideshow_params() |
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| 98 | { |
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| 99 | global $conf; |
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| 100 | |
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| 101 | return array( |
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| 102 | 'period' => $conf['slideshow_period'], |
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| 103 | 'repeat' => $conf['slideshow_repeat'], |
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| 104 | 'play' => true, |
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| 105 | ); |
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| 106 | } |
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| 107 | |
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| 108 | /* |
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| 109 | * check and correct slideshow params from array |
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| 110 | * |
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| 111 | * @param array of params |
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| 112 | * |
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| 113 | * @return slideshow corrected values into array |
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| 114 | */ |
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| 115 | function correct_slideshow_params($params = array()) |
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| 116 | { |
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| 117 | global $conf; |
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| 118 | |
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| 119 | if ($params['period'] < $conf['slideshow_period_min']) |
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| 120 | { |
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| 121 | $params['period'] = $conf['slideshow_period_min']; |
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| 122 | } |
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| 123 | else if ($params['period'] > $conf['slideshow_period_max']) |
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| 124 | { |
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| 125 | $params['period'] = $conf['slideshow_period_max']; |
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| 126 | } |
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| 127 | |
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| 128 | return $params; |
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| 129 | } |
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| 130 | |
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| 131 | /* |
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| 132 | * Decode slideshow string params into array |
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| 133 | * |
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| 134 | * @param string params like "" |
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| 135 | * |
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| 136 | * @return slideshow values into array |
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| 137 | */ |
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| 138 | function decode_slideshow_params($encode_params = null) |
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| 139 | { |
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| 140 | global $conf; |
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| 141 | |
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| 142 | $result = get_default_slideshow_params(); |
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| 143 | |
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| 144 | if (is_numeric($encode_params)) |
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| 145 | { |
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| 146 | $result['period'] = $encode_params; |
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| 147 | } |
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| 148 | else |
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| 149 | { |
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| 150 | $matches = array(); |
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| 151 | if (preg_match_all('/([a-z]+)-(\d+)/', $encode_params, $matches)) |
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| 152 | { |
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| 153 | $matchcount = count($matches[1]); |
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| 154 | for ($i = 0; $i < $matchcount; $i++) |
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| 155 | { |
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| 156 | $result[$matches[1][$i]] = $matches[2][$i]; |
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| 157 | } |
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| 158 | } |
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| 159 | |
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| 160 | if (preg_match_all('/([a-z]+)-(true|false)/', $encode_params, $matches)) |
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| 161 | { |
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| 162 | $matchcount = count($matches[1]); |
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| 163 | for ($i = 0; $i < $matchcount; $i++) |
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| 164 | { |
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| 165 | $result[$matches[1][$i]] = get_boolean($matches[2][$i]); |
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| 166 | } |
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| 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | return correct_slideshow_params($result); |
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| 171 | } |
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| 172 | |
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| 173 | /* |
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| 174 | * Encode slideshow array params into array |
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| 175 | * |
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| 176 | * @param array params |
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| 177 | * |
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| 178 | * @return slideshow values into string |
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| 179 | */ |
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| 180 | function encode_slideshow_params($decode_params = array()) |
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| 181 | { |
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| 182 | global $conf; |
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| 183 | |
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| 184 | $params = array_diff_assoc(correct_slideshow_params($decode_params), get_default_slideshow_params()); |
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| 185 | $result = ''; |
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| 186 | |
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| 187 | foreach ($params as $name => $value) |
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| 188 | { |
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| 189 | // boolean_to_string return $value, if it's not a bool |
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| 190 | $result .= '+'.$name.'-'.boolean_to_string($value); |
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| 191 | } |
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| 192 | |
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| 193 | return $result; |
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| 194 | } |
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| 195 | |
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[2479] | 196 | // The get_picture_size function return an array containing : |
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| 197 | // - $picture_size[0] : final width |
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| 198 | // - $picture_size[1] : final height |
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| 199 | // The final dimensions are calculated thanks to the original dimensions and |
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| 200 | // the maximum dimensions given in parameters. get_picture_size respects |
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| 201 | // the width/height ratio |
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| 202 | function get_picture_size( $original_width, $original_height, |
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| 203 | $max_width, $max_height ) |
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| 204 | { |
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| 205 | $width = $original_width; |
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| 206 | $height = $original_height; |
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| 207 | $is_original_size = true; |
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| 208 | |
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| 209 | if ( $max_width != "" ) |
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| 210 | { |
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| 211 | if ( $original_width > $max_width ) |
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| 212 | { |
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| 213 | $width = $max_width; |
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| 214 | $height = floor( ( $width * $original_height ) / $original_width ); |
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| 215 | } |
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| 216 | } |
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| 217 | if ( $max_height != "" ) |
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| 218 | { |
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| 219 | if ( $original_height > $max_height ) |
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| 220 | { |
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| 221 | $height = $max_height; |
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| 222 | $width = floor( ( $height * $original_width ) / $original_height ); |
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| 223 | $is_original_size = false; |
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| 224 | } |
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| 225 | } |
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| 226 | if ( is_numeric( $max_width ) and is_numeric( $max_height ) |
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| 227 | and $max_width != 0 and $max_height != 0 ) |
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| 228 | { |
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| 229 | $ratioWidth = $original_width / $max_width; |
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| 230 | $ratioHeight = $original_height / $max_height; |
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| 231 | if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) ) |
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| 232 | { |
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| 233 | if ( $ratioWidth < $ratioHeight ) |
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| 234 | { |
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| 235 | $width = floor( $original_width / $ratioHeight ); |
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| 236 | $height = $max_height; |
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| 237 | } |
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| 238 | else |
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| 239 | { |
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| 240 | $width = $max_width; |
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| 241 | $height = floor( $original_height / $ratioWidth ); |
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| 242 | } |
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| 243 | $is_original_size = false; |
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| 244 | } |
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| 245 | } |
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| 246 | $picture_size = array(); |
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| 247 | $picture_size[0] = $width; |
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| 248 | $picture_size[1] = $height; |
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| 249 | return $picture_size; |
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| 250 | } |
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| 251 | |
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[1903] | 252 | ?> |
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