mods/photo_album/classes/pa_mypic.class.php

   1 <?php\r
   2 /*==============================================================\r
   3   Photo Album\r
   4  ==============================================================\r
   5   Copyright (c) 2006 by Dylan Cheon & Kelvin Wong\r
   6   Institute for Assistive Technology / University of Victoria\r
   7   http://www.canassist.ca/                                    \r
   8                                                                \r
   9   This program is free software. You can redistribute it and/or\r
  10   modify it under the terms of the GNU General Public License  \r
  11   as published by the Free Software Foundation.                \r
  12  ==============================================================\r
  13  */\r
  14 // $Id:\r
  15 \r
  16 /**\r
  17  * @desc        This file generates image data for the my pictures view\r
  18  * @author      Dylan Cheon & Kelvin Wong\r
  19  * @copyright   2006, Institute for Assistive Technology / University of Victoria \r
  20  * @link        http://www.canassist.ca/                                    \r
  21  * @license GNU\r
  22  */\r
  23 \r
  24 require_once ('define.php');\r
  25 require_once ('classes/pa.class.php');\r
  26 require_once ('include/general_func.php');\r
  27 require_once ('include/data_func.php');\r
  28 \r
  29 /** \r
  30  * @desc        class Mypic\r
  31  * @see         class Pa\r
  32  */\r
  33 class Mypic extends Pa{\r
  34         var $mode=POSTED_NEW;\r
  35         var $image_array=Array();\r
  36         var $page_array=Array();\r
  37         var $current_page=-1;\r
  38         var $show_page_left_buttons=false;\r
  39         var $show_page_right_buttons=false;\r
  40         var $total=NOT_SET;\r
  41         var $last_page=NOT_SET;\r
  42         \r
  43         /**\r
  44          * @desc        class constructor\r
  45          */\r
  46         function Mypic(){\r
  47                 parent::init();\r
  48                 $this->setMode();\r
  49                 $this->checkCurrentPage();\r
  50                 $this->setImages();\r
  51                 $this->setPages();\r
  52         \r
  53         }\r
  54         \r
  55         /**\r
  56          * @desc        This function decides whether to display left arrow and right arrow buttons for the page table\r
  57          */\r
  58         function setPages(){\r
  59                 $temp=get_page_array(MYPIC_NUMBER_OF_IMAGE, MYPIC_NUMBER_OF_IMAGE_PAGE, $this->getVariable('current_page'), $this->getVariable('last_page'));\r
  60                 $current=$this->getVariable('current_page');\r
  61                 if ($current > 1){\r
  62                         $this->setVariable('show_page_left_buttons', true);\r
  63                 } \r
  64                 if ($current < $temp['last_page']){\r
  65                         $this->setVariable('show_page_right_buttons', true);\r
  66                 }\r
  67                 $this->page_array=&$temp;\r
  68                 \r
  69         }       \r
  70         \r
  71         /**\r
  72          * @desc        This function sets the mode value for the image display.  The mode value can be one of POSTED_NEW, APPROVED, DISAPPROVED\r
  73          */\r
  74         function setMode(){\r
  75                 if (isset($_GET['mode'])){\r
  76                         $this->setVariable('mode', intval($_GET['mode']));\r
  77                 } \r
  78         }\r
  79         \r
  80         /**\r
  81          * @desc        This function checks the current page is valid.  Otherwise, the current page is set to 1\r
  82          */\r
  83         function checkCurrentPage(){\r
  84                 $total=get_total_image_number(MY_PIC, $this->getVariable('course_id'), $this->getVariable('mode'));\r
  85                 $last_page=get_last_page(MYPIC_NUMBER_OF_IMAGE, $total);\r
  86                 $this->setVariable('total', $total);\r
  87                 $this->setVariable('last_page', $last_page);\r
  88                 \r
  89                 if (!isset($_GET['current_page'])){\r
  90                         $this->setVariable('current_page', FIRST_PAGE);\r
  91                 } else {\r
  92                         $current_page=to_pos_int($_GET['current_page']);\r
  93                         if ($current_page > $last_page){\r
  94                                 $this->setVariable('current_page',$last_page);\r
  95                         } else {\r
  96                                 $this->setVariable('current_page', $current_page);\r
  97                         }\r
  98                 }\r
  99         }\r
 100         \r
 101         /**\r
 102          * @desc        This function sets the image array\r
 103          */\r
 104         function setImages(){\r
 105                 $array=get_image_array(MY_PIC, parent::getVariable('course_id'), $this->getVariable('mode'), $this->getVariable('current_page'), MYPIC_NUMBER_OF_IMAGE, $_SESSION['login']);\r
 106                 $this->image_array=&$array;\r
 107         }\r
 108                         \r
 109         /**\r
 110          * @desc        This function sets the given string to a value for the class object\r
 111          * @param       String  $string         string name to set up\r
 112          * @param       mixed   $value          string value\r
 113          */\r
 114         function setVariable($string, $value){\r
 115                 switch ($string){\r
 116                         case 'mode':\r
 117                                 if ($value==APPROVED || $value==DISAPPROVED || $value==POSTED_NEW){\r
 118                                         $this->{$string}=$value;\r
 119                                 }\r
 120                         break;\r
 121                         case 'current_page':\r
 122                         case 'last_page':\r
 123                         case 'total':\r
 124                                 if (is_int($value)){\r
 125                                         $this->{$string}=$value;\r
 126                                 } else {\r
 127                                         parent::storeError("value ".$string." is not integer");\r
 128                                 }\r
 129                         break;\r
 130                         case 'show_page_left_buttons':\r
 131                         case 'show_page_right_buttons':\r
 132                                 if (is_bool($value)){\r
 133                                         $this->{$string}=$value;\r
 134                                 } else {\r
 135                                         parent::storeError("value ".$string." is not boolean");\r
 136                                 }\r
 137                         break;\r
 138                 }\r
 139         }\r
 140 }