<?php
// $Id$

/**
 * @file
 * Contains theme override functions and preprocess functions for the theme.
 *
 * ABOUT THE TEMPLATE.PHP FILE
 *
 *   The template.php file is one of the most useful files when creating or
 *   modifying Drupal themes. You can add new regions for block content, modify
 *   or override Drupal's theme functions, intercept or make additional
 *   variables available to your theme, and create custom PHP logic. For more
 *   information, please visit the Theme Developer's Guide on Drupal.org:
 *   http://drupal.org/theme-guide
 *
 * OVERRIDING THEME FUNCTIONS
 *
 *   The Drupal theme system uses special theme functions to generate HTML
 *   output automatically. Often we wish to customize this HTML output. To do
 *   this, we have to override the theme function. You have to first find the
 *   theme function that generates the output, and then "catch" it and modify it
 *   here. The easiest way to do it is to copy the original function in its
 *   entirety and paste it here, changing the prefix from theme_ to newtheme_diosav_org_.
 *   For example:
 *
 *     original: theme_breadcrumb()
 *     theme override: newtheme_diosav_org_breadcrumb()
 *
 *   where newtheme_diosav_org is the name of your sub-theme. For example, the
 *   zen_classic theme would define a zen_classic_breadcrumb() function.
 *
 *   If you would like to override any of the theme functions used in Zen core,
 *   you should first look at how Zen core implements those functions:
 *     theme_breadcrumbs()      in zen/template.php
 *     theme_menu_item_link()   in zen/template.php
 *     theme_menu_local_tasks() in zen/template.php
 *
 *   For more information, please visit the Theme Developer's Guide on
 *   Drupal.org: http://drupal.org/node/173880
 *
 * CREATE OR MODIFY VARIABLES FOR YOUR THEME
 *
 *   Each tpl.php template file has several variables which hold various pieces
 *   of content. You can modify those variables (or add new ones) before they
 *   are used in the template files by using preprocess functions.
 *
 *   This makes THEME_preprocess_HOOK() functions the most powerful functions
 *   available to themers.
 *
 *   It works by having one preprocess function for each template file or its
 *   derivatives (called template suggestions). For example:
 *     THEME_preprocess_page    alters the variables for page.tpl.php
 *     THEME_preprocess_node    alters the variables for node.tpl.php or
 *                              for node-forum.tpl.php
 *     THEME_preprocess_comment alters the variables for comment.tpl.php
 *     THEME_preprocess_block   alters the variables for block.tpl.php
 *
 *   For more information on preprocess functions and template suggestions,
 *   please visit the Theme Developer's Guide on Drupal.org:
 *   http://drupal.org/node/223440
 *   and http://drupal.org/node/190815#template-suggestions
 */


/*
 * Add any conditional stylesheets you will need for this sub-theme.
 *
 * To add stylesheets that ALWAYS need to be included, you should add them to
 * your .info file instead. Only use this section if you are including
 * stylesheets based on certain conditions.
 */
/* -- Delete this line if you want to use and modify this code
// Example: optionally add a fixed width CSS file.
if (theme_get_setting('newtheme_diosav_org_fixed')) {
  drupal_add_css(path_to_theme() . '/layout-fixed.css', 'theme', 'all');
}
// */


/**
 * Implementation of HOOK_theme().
 */
function newtheme_diosav_org_theme(&$existing, $type, $theme, $path) {
  $hooks = zen_theme($existing, $type, $theme, $path);
  // Add your theme hooks like this:
  /*
  $hooks['hook_name_here'] = array( // Details go here );
  */
  // @TODO: Needs detailed comments. Patches welcome!
  return $hooks;
}

/**
 * Override or insert variables into all templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered (name of the .tpl.php file.)
 */
/* -- Delete this line if you want to use this function
function newtheme_diosav_org_preprocess(&$vars, $hook) {
  $vars['sample_variable'] = t('Lorem ipsum.');
}
// */

/**
 * Override or insert variables into the page templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("page" in this case.)
 */
/* -- Delete this line if you want to use this function
function newtheme_diosav_org_preprocess_page(&$vars, $hook) {
  $vars['sample_variable'] = t('Lorem ipsum.');
}
// */

/**
 * Override or insert variables into the node templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("node" in this case.)
 */
/* -- Delete this line if you want to use this function
function newtheme_diosav_org_preprocess_node(&$vars, $hook) {
  $vars['sample_variable'] = t('Lorem ipsum.');
}
// */

/**
 * Override or insert variables into the comment templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("comment" in this case.)
 */
/* -- Delete this line if you want to use this function
function newtheme_diosav_org_preprocess_comment(&$vars, $hook) {
  $vars['sample_variable'] = t('Lorem ipsum.');
}
// */

/**
 * Override or insert variables into the block templates.
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("block" in this case.)
 */
/* -- Delete this line if you want to use this function
function newtheme_diosav_org_preprocess_block(&$vars, $hook) {
  $vars['sample_variable'] = t('Lorem ipsum.');
}
// */

/*!
 * Views Slideshow Dynamic display block preprocess functions
 * Author P.P. Blaauw
 * Version 1.3 (07-SEP-2009)
 * Licenced under GPL license
 * http://www.gnu.org/licenses/gpl.html
 */

 /**
 * Override or insert variables into the views_slideshow_ddblock_cycle_block_content templates.
 *   Used to convert variables from view_fields to slider_items template variables
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 * 
 */
function newtheme_diosav_org_preprocess_views_slideshow_ddblock(&$vars) {
  drupal_rebuild_theme_registry();
  $settings = $vars['views_slideshow_ddblock_slider_settings'];
  // for showing debug info
  views_slideshow_ddblock_show_content_debug_info($vars);
  if ($settings['output_type'] == 'view_fields') {
    if ($settings['view_name'] == 'news_items' && $settings['view_display_id'] == 'block_1') {
      if (!empty($vars['views_slideshow_ddblock_content'])) {
        foreach ($vars['views_slideshow_ddblock_content'] as $key1 => $result) {
          // add slide image variable
          $slider_items[$key1]['slide_image'] = views_slideshow_ddblock_add_image(
            $vars,
            // determines which imagcache preset to use, leave to 'slider_item_image'
            'slider_item_image',
            // name of CCK generated image field, change if needed.
            $result->node_data_field_pager_item_text_field_image_fid,
            // alt attribute of image or NULL
            $result->node_title,
            // cck content type for default image or NULL, change if needed
            NULL, //'ddblock_news_item',
            // cck fieldname for default image or NULL, change if needed
            NULL, //'field_image',
            // to link the image to or NULL, change if needed
            NULL // base_path() . 'node/' . $result->nid
          );
          // add slide_text variable
          if (isset($result->node_data_field_pager_item_text_field_slide_text_value)) {
            $slider_items[$key1]['slide_text'] =  check_markup($result->node_data_field_pager_item_text_field_slide_text_value);
          }
          // add slide_title variable
          if (isset($result->node_title)) {
            $slider_items[$key1]['slide_title'] =  check_plain($result->node_title);
          }
          // add slide_read_more variable and slide_node variable
          if (isset($result->nid)) {
            $slider_items[$key1]['slide_read_more'] = '<a href="' . base_path() . 'node/' .  $result->nid . '">' . t('Read more') . '</a>';
            $slider_items[$key1]['slide_node'] = base_path() . 'node/' . $result->nid;
          }
        }
      }
    }    
    $vars['views_slideshow_ddblock_slider_items'] = $slider_items;
  }
}  
/**
 * Override or insert variables into the views_slideshow_ddblock_cycle_pager_content templates.
 *   Used to convert variables from view_fields  to pager_items template variables
 *  Only used for custom pager items
 *
 * @param $vars
 *   An array of variables to pass to the theme template.
 *
 */
function newtheme_diosav_org_preprocess_views_slideshow_ddblock_pager_content(&$vars) {
  $settings = $vars['views_slideshow_ddblock_pager_settings'];
  // for showing debug info
  views_slideshow_ddblock_show_pager_debug_info($vars);
  if (($settings['output_type'] == 'view_fields') && 
      ($settings['pager'] == 'number-pager' || 
      $settings['pager'] == 'custom-pager' ||
      $settings['pager'] == 'scrollable-pager' )) {
    if ($settings['view_name'] == 'news_items' && $settings['view_display_id'] == 'block_1') {
      if (!empty($vars['views_slideshow_ddblock_content'])) {
        foreach ($vars['views_slideshow_ddblock_content'] as $key1 => $result) {
          // add pager_item_image variable
          $pager_items[$key1]['image'] = views_slideshow_ddblock_add_image(
            $vars,
            // determines which imagcache preset to use, leave to 'pager_item_image'
            'pager_item_image',
            // name of CCK generated image field, change if needed.
            $result->node_data_field_pager_item_text_field_image_fid,
            // alt attribute of image or NULL
            $result->node_data_field_pager_item_text_field_pager_item_text_value,
            // cck content type for default image or NULL, change if needed
            NULL, //'ddblock_news_item',
            // cck fieldname for default image or NULL, change if needed
            NULL, //'field_image',
            // to link the image to or NULL, change if needed
            NULL // base_path() . 'node/' . $result->nid
          );
          // add pager_item _text variable
          if (isset($result->node_data_field_pager_item_text_field_pager_item_text_value)) {
            $pager_items[$key1]['text'] =  check_plain($result->node_data_field_pager_item_text_field_pager_item_text_value);
          }
        }
      }
    }
    $vars['views_slideshow_ddblock_pager_items'] = $pager_items;
  }    
}