calendar improvements: week on weekly list starts on Monday,

ability to show grayed months/weeks/days (without any picture in it),
added icons for created/posted fields
language uniformization

calendar fixes: correct number of pictures in calendar view,
code simplification (I hope so)

git-svn-id: http://piwigo.org/svn/trunk@1059 68402e56-0260-453c-a942-63ccdbb3a9ee

include/calendar_base.class.php

@@ -37,7 +37,8 @@ class CalendarBase
   var $url_base;
   // array of date components e.g. (2005,10,12) ...
   var $date_components;
-
+  //
+  var $calendar_levels;
 
   /**
    * Initialize the calendar
@@ -52,16 +53,45 @@ class CalendarBase
     $this->date_components = $date_components;
   }
 
+  function get_display_name()
+  {
+    global $conf;
+    $res = '';
+    $url = $this->url_base;
+
+    for ($i=0; $i<count($this->date_components); $i++)
+    {
+      $res .= $conf['level_separator'];
+
+      $url .= $this->date_components[$i].'-';
+      if ( isset($this->date_components[$i+1]) )
+      {
+        $res .=
+          '<a href="'.$url.'">'
+          .$this->get_date_component_label($i, $this->date_components[$i])
+          .'</a>';
+      }
+      else
+      {
+        $res .=
+          '<span class="calInHere">'
+          .$this->get_date_component_label($i, $this->date_components[$i])
+          .'</span>';
+      }
+    }
+    return $res;
+  }
+
 //--------------------------------------------------------- private members ---
   /**
    * Returns a display name for a date component optionally using labels
   */
-  function get_date_component_label($date_component, $labels=null)
+  function get_date_component_label($level, $date_component)
   {
     $label = $date_component;
-    if (isset($labels[$date_component]))
+    if (isset($this->calendar_levels[$level]['labels'][$date_component]))
     {
-      $label = $labels[$date_component];
+      $label = $this->calendar_levels[$level]['labels'][$date_component];
     }
     elseif ($date_component == 'any' )
     {
@@ -69,7 +99,7 @@ class CalendarBase
     }
     return $label;
   }
-  
+
   /**
    * Creates a calendar navigation bar.
    *
@@ -77,15 +107,31 @@ class CalendarBase
    * @param array items - hash of items to put in the bar (e.g. 2005,2006)
    * @param array selected_item - item currently selected (e.g. 2005)
    * @param string class_prefix - html class attribute prefix for span elements
-   * @param bool allow_any - adds any to the end of the bar
+   * @param bool show_any - adds any link to the end of the bar
+   * @param bool show_empty - shows all labels even those without items
    * @param array labels - optional labels for items (e.g. Jan,Feb,...)
    * @return string the navigation bar
    */
   function get_nav_bar_from_items($url_base, $items, $selected_item,
-                                  $class_prefix, $allow_any, $labels=null)
+                                  $class_prefix, $show_any,
+                                  $show_empty=false, $labels=null)
   {
+    global $conf;
+
     $nav_bar = '';
-      
+
+    if ($conf['calendar_show_empty'] and $show_empty and !empty($labels) )
+    {
+      foreach ($labels as $item => $label)
+      {
+        if ( ! isset($items[$item]) )
+        {
+          $items[$item] = -1;
+        }
+      }
+      ksort($items);
+    }
+
     foreach ($items as $item => $nb_images)
     {
       $label = $item;
@@ -98,6 +144,11 @@ class CalendarBase
         $nav_bar .= '<span class="'.$class_prefix.'Sel">';
         $nav_bar .= $label;
       }
+      elseif ($nb_images==-1)
+      {
+        $nav_bar .= '<span class="'.$class_prefix.'Empty">';
+        $nav_bar .= $label;
+      }
       else
       {
         $nav_bar .= '<span class="'.$class_prefix.'">';
@@ -112,8 +163,8 @@ class CalendarBase
       }
       $nav_bar.= '</span>';
     }
-    global $conf;
-    if ($conf['calendar_show_any'] and $allow_any and count($items) > 1)
+
+    if ($conf['calendar_show_any'] and $show_any and count($items) > 1)
     {
       $label = l10n('calendar_any');
       if (isset($selected_item) and 'any' == $selected_item)
@@ -137,18 +188,15 @@ class CalendarBase
   /**
    * Creates a calendar navigation bar for a given level.
    *
-   * @param string sql_func - YEAR/MONTH/DAY/WEEK/DAYOFWEEK ...
-   * @param string sql_offset - (e.g. +1 for WEEK - first in year is 1)
-   * @param array labels - optional labels to show in the navigation bar
+   * @param int level - the level (0-year,1-month/week,2-day)
    * @return void
    */
-  function build_nav_bar($level, $sql_func,
-                         $sql_offset='', $labels=null)
+  function build_nav_bar($level, $labels=null)
   {
-    global $template;
-    
+    global $template, $conf;
+
     $query = '
-SELECT DISTINCT('.$sql_func.'('.$this->date_field.')'.$sql_offset
+SELECT DISTINCT('.$this->calendar_levels[$level]['sql']
       .') as period';
     $query.= $this->inner_sql;
     $query.= $this->get_date_where($level);
@@ -163,6 +211,24 @@ SELECT DISTINCT('.$sql_func.'('.$this->date_field.')'.$sql_offset
       $level_items[$row['period']] = 0;
     }
 
+    if ( count($level_items)==1 )
+    {
+      if ( ! isset($this->date_components[$level]) )
+      {
+        list($key) = array_keys($level_items);
+        $this->date_components[$level] = (int)$key;
+      }
+    }
+
+    if ( $conf['calendar_multi_bar']==false )
+    {
+      if ( $level<count($this->date_components) and
+           $level!=count($this->calendar_levels)-1 )
+      {
+        return;
+      }
+    }
+
     $url_base = $this->url_base;
     for ($i=0; $i<$level; $i++)
     {
@@ -180,9 +246,10 @@ SELECT DISTINCT('.$sql_func.'('.$this->date_field.')'.$sql_offset
       $url_base,
       $level_items,
       $selected,
-      'cal',
+      'calItem',
       true,
-      $labels
+      true,
+      isset($labels) ? $labels : $this->calendar_levels[$level]['labels']
       );
 
     $template->assign_block_vars(