<?php

/*

Copyright (c) 2005-2008, Alex Tingle.  $Revision: 281 $

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; either version 2

of the License, or (at your option) any later version.

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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

*/

/** Singleton class. Manages EC3 options. Global options that are guaranteed to

 *  exist (start of week, siteurl, home) are not managed by this class. */

class ec3_Options

{

  // Some global variables.

  var $version='3.1.4';

  var $myfiles='';

  var $call_count=0;

  var $schedule='ec3_schedule'; // table name

  // Code differences required by different versions of WordPress.

  // Defaults represent the latest version of WP.

  /** The name of the column wp_posts.user_nicename. */

  var $wp_user_nicename='user_nicename';

  /** The root of the XHTML id of the category checkboxes (edit page). */

  var $wp_in_category='in-category-';

  /** Is DBX available? */

  var $wp_have_dbx=true;

  /** Do we have categories? (WP<2.3) */

  var $wp_have_categories=false;

  // Settings used to flags activity between posts_where and other filters:

  var $is_listing=false;

  var $is_date_range=false;

  var $is_today=false;

  var $days=false;

  var $range_from=false;

  var $range_before=false;

  var $join_ec3_sch=false;

  var $join_only_active_events=false;

  var $order_by_start=false;

  /** May be set TRUE by a template before the call to wp_head().

    * Turns off CSS in header. */

  var $nocss=false;

  /** Which category is used for events? DEFAULT=0 */

  var $event_category;

  /** Show only events in calendar. DEFAULT=false */

  var $show_only_events;

  /** Number to months displayed by get_calendar(). DEFAULT=1 */

  var $num_months;

  /** Should day names be abbreviated to 1 or 3 letters? DEFAULT=1 */

  var $day_length;

  /** Hide the 'EC' logo on calendar displays? DEFAULT=0 */

  var $hide_logo;

  /** Display event box within post. DEFAULT=0 */

  var $hide_event_box;

  /** Use advanced post behaviour? DEFAULT=0 */

  var $advanced;

  /** Position navigation links or hide them. DEFAULT=0 */

  var $navigation;

  /** Disable popups? DEFAULT=0 */

  var $disable_popups;

  /** Local timezone. */

  var $tz;

  function ec3_Options()

  {

    global $table_prefix,$wp_version;

    $mydir=

      preg_replace('%^.*[/\\\\]([^/\\\\]+)[/\\\\]options.php$%','$1',__FILE__);

    load_plugin_textdomain('ec3','wp-content/plugins/'.$mydir.'/gettext');

    $this->myfiles=get_option('siteurl').'/wp-content/plugins/'.$mydir;

    $this->schedule=$table_prefix.$this->schedule; // table name

    // wp_version < 2.0

    if(ereg('^1[.]',$wp_version))

    {

      $this->wp_user_nicename='user_nickname';

      $this->wp_have_dbx=false;

    }

    // wp_version < 2.1

    if(ereg('^(1[.]|2[.]0)',$wp_version))

    {

      $this->wp_in_category='category-';

    }

    // wp_version < 2.3

    if(ereg('^(1[.]|2[.][012])',$wp_version))

    {

      $this->wp_have_categories=true;

    }

    $this->read_event_category();

    $this->read_show_only_events();

    $this->read_num_months();

    $this->read_day_length();

    $this->read_hide_logo();

    $this->read_hide_event_box();

    $this->read_advanced();

    $this->read_navigation();

    $this->read_disable_popups();

    $this->read_tz();

  }

  function reset_query()

  {

    $this->is_listing=false;

    $this->is_date_range=false;

    $this->is_today=false;

    $this->days=false;

    $this->range_from=false;

    $this->range_before=false;

    $this->join_ec3_sch=false;

    $this->join_only_active_events=false;

    $this->order_by_start=false;

  }

  // READ functions

  function read_event_category()

  {

    $this->event_category=intval( get_option('ec3_event_category') );

  }

  function read_show_only_events()

  {

    $this->show_only_events=intval(get_option('ec3_show_only_events'));

  }

  function read_num_months()

  {

    $this->num_months =abs(intval(get_option('ec3_num_months')));

    if(!$this->num_months)

        $this->num_months=1;

  }

  function read_day_length()

  {

    $this->day_length=intval(get_option('ec3_day_length'));

    if($this->day_length==0)

        $this->day_length=1;

  }

  function read_hide_logo()

  {

    $this->hide_logo=intval(get_option('ec3_hide_logo'));

  }

  function read_hide_event_box()

  {

    $this->hide_event_box=intval(get_option('ec3_hide_event_box'));

  }

  function read_advanced()

  {

    $this->advanced=intval(get_option('ec3_advanced'));

    // Sometimes we want to play around with the value of advanced.

    // 'advanced_setting' ALWAYS holds the REAL value.

    $this->advanced_setting=$this->advanced;

  }

  function read_navigation()

  {

    $this->navigation=intval(get_option('ec3_navigation'));

  }

  function read_disable_popups()

  {

    $this->disable_popups=intval(get_option('ec3_disable_popups'));

  }

  function read_tz()

  {

    $this->tz = get_option('ec3_tz');

    if(empty($this->tz) || $this->tz=='wordpress')

    {

      // Use WordPress default (doesn't understand daylight saving time).

      $gmt_offset=-intval(get_option('gmt_offset'));

      $this->tz='UTC';

      if($gmt_offset>0)

        $this->tz.='+'.$gmt_offset;

      elseif($gmt_offset<0)

        $this->tz.=$gmt_offset;

    }

  }

  // SET functions

  function set_event_category($val)

  {

    if($this->event_category!=$val)

    {

      update_option('ec3_event_category',$val);

      $this->read_event_category();

    }

  }

  function set_show_only_events($val)

  {

    if($this->show_only_events!=$val)

    {

      update_option('ec3_show_only_events',$val);

      $this->read_show_only_events();

    }

  }

  function set_num_months($val)

  {

    if($this->num_months!=$val)

    {

      update_option('ec3_num_months',$val);

      $this->read_num_months();

    }

  }

  function set_day_length($val)

  {

    if($this->day_length!=$val)

    {

      update_option('ec3_day_length',$val);

      $this->read_day_length();

    }

  }

  function set_hide_logo($val)

  {

    if($this->hide_logo!=$val)

    {

      update_option('ec3_hide_logo',$val);

      $this->read_hide_logo();

    }

  }

  function set_hide_event_box($val)

  {

    if($this->hide_event_box!=$val)

    {

      update_option('ec3_hide_event_box',$val);

      $this->read_hide_event_box();

    }

  }

  function set_advanced($val)

  {

    if($this->advanced_setting!=$val)

    {

      update_option('ec3_advanced',$val);

    }

    // read_advanced() does some special magic, so we always call it.

    $this->read_advanced();

  }

  function set_navigation($val)

  {

    if($this->navigation!=$val)

    {

      update_option('ec3_navigation',$val);

      $this->read_navigation();

    }

  }

  function set_disable_popups($val)

  {

    if($this->disable_popups!=$val)

    {

      update_option('ec3_disable_popups',$val);

      $this->read_disable_popups();

    }

  }

  function set_tz($val)

  {

    if(!preg_match('/(WordPress|[_a-zA-Z\/]+)/',$val))

      return;

    if($this->tz!=$val)

    {

      update_option('ec3_tz',$val);

      $this->read_tz();

    }

  }

} // end class ec3_Options

/** Singleton instance of ec3_Options. */

$ec3=new ec3_Options();

?>