[8509] | 1 | <?php |
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| 2 | /* ----------------------------------------------------------------------------- |
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| 3 | Plugin : Histogram |
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| 4 | Author : Grum |
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| 5 | email : grum@piwigo.org |
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| 6 | website : http://photos.grum.fr |
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| 7 | |
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| 8 | << May the Little SpaceFrog be with you ! >> |
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| 9 | ------------------------------------------------------------------------------ |
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| 10 | See main.inc.php for release information |
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| 11 | |
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| 12 | HGram_root : common classe for admin and public classes |
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| 13 | |
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| 14 | --------------------------------------------------------------------------- */ |
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| 15 | |
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| 16 | if(!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!'); |
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| 17 | |
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| 18 | |
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| 19 | include_once('hgram_histogram.class.inc.php'); |
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| 20 | include_once(PHPWG_PLUGINS_PATH.'GrumPluginClasses/classes/CommonPlugin.class.inc.php'); |
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| 21 | include_once(PHPWG_PLUGINS_PATH.'GrumPluginClasses/classes/GPCAjax.class.inc.php'); |
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| 22 | |
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| 23 | class HGram_root extends CommonPlugin |
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| 24 | { |
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| 25 | const LOCAL_DIRECTORY='/local/plugins/Histogram/'; |
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| 26 | |
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| 27 | static public $pluginName='Histogram'; |
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| 28 | static public $pluginNameFile='hgram'; |
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| 29 | static public $pluginTables=array('histo'); |
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| 30 | |
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| 31 | public function __construct($prefixeTable, $filelocation) |
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| 32 | { |
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| 33 | $this->setPluginName(self::$pluginName); |
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| 34 | $this->setPluginNameFiles(self::$pluginNameFile); |
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| 35 | parent::__construct($prefixeTable, $filelocation); |
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| 36 | $this->section_name=$this->getPluginNameFiles(); |
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| 37 | |
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| 38 | $this->setTablesList(self::$pluginTables); |
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| 39 | } |
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| 40 | |
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| 41 | /** |
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| 42 | * initialize default values |
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| 43 | * |
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| 44 | */ |
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| 45 | public function initConfig() |
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| 46 | { |
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| 47 | $this->config=array( |
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| 48 | 'histo_width' => 256, |
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| 49 | 'histo_height' => 100, |
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| 50 | 'histo_method' => 'L', // L:luminance, A:average, M:max |
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| 51 | 'color_bg' => 0xffffff, |
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| 52 | 'color_v' => 0x606060, |
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| 53 | 'color_r' => 0xC00000, |
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| 54 | 'color_g' => 0x00C000, |
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| 55 | 'color_b' => 0x0000C0, |
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| 56 | 'mode_v' => 'surface', |
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| 57 | 'mode_r' => 'line', |
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| 58 | 'mode_g' => 'line', |
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| 59 | 'mode_b' => 'line' |
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| 60 | ); |
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| 61 | } |
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| 62 | |
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| 63 | /** |
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| 64 | * check if the given picture as histogram values |
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| 65 | * |
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| 66 | * @param Integer $id : piwigo image id |
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| 67 | * @return Bool : true if histogram exists |
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| 68 | */ |
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| 69 | public function checkHistogram($id) |
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| 70 | { |
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| 71 | $sql="SELECT COUNT(imageId) FROM ".$this->tables['histo']." |
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| 72 | WHERE imageId='$id';"; |
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| 73 | $result=pwg_query($sql); |
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| 74 | if($result) |
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| 75 | { |
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| 76 | $count=0; |
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| 77 | while($row=pwg_db_fetch_row($result)) |
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| 78 | { |
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| 79 | $count=$row[0]; |
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| 80 | } |
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| 81 | return($count>0); |
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| 82 | } |
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| 83 | return(false); |
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| 84 | } |
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| 85 | |
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| 86 | public function readHistogram($id) |
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| 87 | { |
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| 88 | $sql="SELECT path FROM ".IMAGES_TABLE." |
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| 89 | WHERE id='$id';"; |
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| 90 | $result=pwg_query($sql); |
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| 91 | if($result) |
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| 92 | { |
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| 93 | while($row=pwg_db_fetch_assoc($result)) |
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| 94 | { |
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| 95 | $fileName=GPCCore::getPiwigoSystemPath().'/'.$row['path']; |
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| 96 | } |
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| 97 | |
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| 98 | if(file_exists($fileName)) |
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| 99 | { |
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| 100 | $values=Histogram::read($fileName); |
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| 101 | |
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| 102 | $sql="REPLACE INTO ".$this->tables['histo']." VALUES ('$id', '".implode(';',$values['L'])."', '".implode(';',$values['A'])."', '".implode(';',$values['M'])."', '".implode(';',$values['R'])."', '".implode(';',$values['G'])."', '".implode(';',$values['B'])."', '')"; |
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| 103 | $result=pwg_query($sql); |
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| 104 | } |
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| 105 | } |
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| 106 | } |
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| 107 | |
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| 108 | public function getHistogram($id) |
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| 109 | { |
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| 110 | $returned=array( |
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| 111 | 'L' => array(), |
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| 112 | 'A' => array(), |
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| 113 | 'M' => array(), |
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| 114 | 'R' => array(), |
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| 115 | 'G' => array(), |
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| 116 | 'B' => array() |
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| 117 | ); |
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| 118 | $sql="SELECT valueL AS L, valueA AS A, valueM AS M, valueR AS R, valueG AS G, valueB AS B |
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| 119 | FROM ".$this->tables['histo']." |
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| 120 | WHERE imageId='$id';"; |
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| 121 | $result=pwg_query($sql); |
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| 122 | if($result) |
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| 123 | { |
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| 124 | while($row=pwg_db_fetch_assoc($result)) |
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| 125 | { |
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| 126 | $returned['L']=explode(';', $row['L']); |
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| 127 | $returned['A']=explode(';', $row['A']); |
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| 128 | $returned['M']=explode(';', $row['M']); |
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| 129 | $returned['R']=explode(';', $row['R']); |
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| 130 | $returned['G']=explode(';', $row['G']); |
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| 131 | $returned['B']=explode(';', $row['B']); |
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| 132 | } |
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| 133 | } |
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| 134 | |
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| 135 | return($returned); |
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| 136 | } |
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| 137 | |
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| 138 | |
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| 139 | public function getHistogramGraph($id, $read=false) |
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| 140 | { |
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| 141 | $sql="SELECT graphFile FROM ".$this->tables['histo']." |
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| 142 | WHERE imageId='$id';"; |
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| 143 | $result=pwg_query($sql); |
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| 144 | if($result) |
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| 145 | { |
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| 146 | $fileName=''; |
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| 147 | $exist=false; |
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| 148 | while($row=pwg_db_fetch_assoc($result)) |
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| 149 | { |
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| 150 | $fileName=$row['graphFile']; |
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| 151 | $exist=true; |
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| 152 | } |
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| 153 | |
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| 154 | if(!$exist) |
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| 155 | { |
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| 156 | if($read) |
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| 157 | { |
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| 158 | self::readHistogram($id); |
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| 159 | } |
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| 160 | else |
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| 161 | { |
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| 162 | return(''); |
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| 163 | } |
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| 164 | } |
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| 165 | |
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| 166 | if($fileName=='' or !file_exists(GPCCore::getPiwigoSystemPath().self::LOCAL_DIRECTORY.$fileName)) |
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| 167 | { |
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| 168 | $fileName=md5( |
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| 169 | sprintf("%s-%s", |
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| 170 | $id, |
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| 171 | implode('-', $this->config) |
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| 172 | ) |
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| 173 | ).".png"; |
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| 174 | |
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| 175 | $values=self::getHistogram($id); |
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| 176 | |
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| 177 | Histogram::build(GPCCore::getPiwigoSystemPath().self::LOCAL_DIRECTORY.$fileName, $values, $this->config); |
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| 178 | |
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| 179 | $sql="UPDATE ".$this->tables['histo']." |
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| 180 | SET graphFile='$fileName' |
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| 181 | WHERE imageId='$id';"; |
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| 182 | pwg_query($sql); |
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| 183 | } |
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| 184 | |
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| 185 | return($fileName); |
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| 186 | } |
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| 187 | return(''); |
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| 188 | } |
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| 189 | |
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| 190 | /** |
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| 191 | * get a valid token for an image (used to build histogram) |
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| 192 | * |
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| 193 | * @param Integer $imageId : image id |
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| 194 | * @return String : valid token |
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| 195 | */ |
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| 196 | public function getToken($imageId) |
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| 197 | { |
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| 198 | global $conf; |
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| 199 | return(hash_hmac('md5', "$imageId-".session_id(), $conf['secret_key'])); |
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| 200 | } |
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| 201 | |
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| 202 | /** |
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| 203 | * purge all histogram graph in directory cache |
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| 204 | */ |
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| 205 | public function purgeHistoCache() |
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| 206 | { |
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| 207 | $files=scandir(GPCCore::getPiwigoSystemPath().self::LOCAL_DIRECTORY); |
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| 208 | foreach($files as $fileName) |
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| 209 | { |
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| 210 | if(!is_dir($fileName)) unlink(GPCCore::getPiwigoSystemPath().self::LOCAL_DIRECTORY.'/'.$fileName); |
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| 211 | } |
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| 212 | |
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| 213 | $sql="UPDATE ".$this->tables['histo']." |
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| 214 | SET graphFile='';"; |
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| 215 | pwg_query($sql); |
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| 216 | } |
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| 217 | |
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| 218 | |
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| 219 | } //class |
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| 220 | |
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| 221 | |
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| 222 | ?> |
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