source: extensions/rv_gmaps/trunk/map_data.php @ 15907

<?php
if ( !defined('PHPWG_ROOT_PATH') )
  define('PHPWG_ROOT_PATH','../../');
include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );

if (!isset($rvm_dir))
  access_denied( 'Plugin not installed' );

include_once( dirname(__FILE__) .'/include/functions_map.php');
include_once( dirname(__FILE__) .'/include/functions.php');


//set_make_full_url();
$page['root_path']=get_absolute_root_url(false);

$rewritten = '';
foreach (array_keys($_GET) as $key)
{
  $rewritten = $key;
  break;
}
// deleting first "/" if displayed
$tokens = explode(
  '/',
  preg_replace('#^/#', '', $rewritten)
  );
$next_token = 0;
$result = rvm_parse_map_data_url($tokens, $next_token);
$page = array_merge( $page, $result );

$where_sql = rvm_bounds_to_sql( $page['box'] );

$img_fields = ' i.id,i.representative_ext,i.name,i.comment,i.path,i.lat,i.lon';

$was_flat = @$page['flat'];
$page['flat']=true;
rvm_build_section_items($img_fields, $where_sql, RVM_BUILD_HASH);
if (!$was_flat) unset($page['flat']);

/*header('Cache-Control: public' );
header('Expires: '.gmdate('D, d M Y H:i:s', time()+600).' GMT');
header('Pragma:');*/
header('Content-Type: text/plain; charset='.get_pwg_charset());
header('X-Robots-Tag: noindex');

if ( extension_loaded('zlib') && !ini_get('zlib.output_compression') )
  ob_start('ob_gzhandler');

$clusters = array();
$cluster_debug = '';
if ( !empty($page['items']) )
{
  include_once( dirname(__FILE__) .'/include/cluster_maker.php');
  $cm = new ClusterMaker();
  $clusters = $cm->make_clusters(
      $page['items'],
      isset($_GET['lap']) ? $_GET['lap'] : 0.01,
      isset($_GET['lop']) ? $_GET['lop'] : 0.01,
      isset($_GET['n']) ? $_GET['n'] : rvm_get_config_var('nb_markers',40)
    );
  $cluster_debug .= ' cluster: '. $cm->debug_str. ';';
}

function jsgm_position( $position )
{
  return 'new google.maps.LatLng(' . $position['lat'] . ',' . $position['lon'] . ')';
}

function jsgm_bounds( $bounds )
{
  return 'new google.maps.LatLngBounds(' . jsgm_position(bounds_sw($bounds)) . ',' . jsgm_position(bounds_ne($bounds)) . ')';
}

function jsgm_str( $str )
{
  return '"'. str_replace(array("\\",'"',"\n","\r","\t"), array("\\\\",'\"',"\\n","\\r","\\t"), $str) .'"';
}

$out='';
function rvo($s) {
  global $out; $out.=$s;
}

function rvf() {
  global $out; echo $out; $out='';
  ob_flush();
}

$start_output = get_moment();

rvo( '{' );

rvo( "\ntitle:".jsgm_str( strip_tags(trigger_event('render_element_description', $page['title']) ) ) );
rvo( ",\n" );

rvo( "page_url:".jsgm_str( duplicate_index_url( array('start'=>0) ) ) );
rvo( ",\n" );

rvo( "blowup_url:".jsgm_str( rvm_duplicate_blowup_url( array('start'=>0) ) ) );
rvo( ",\n" );

rvo( "kml_url:".jsgm_str( rvm_duplicate_kml_index_url( array('start'=>0, 'flat'=>1) ) ) );
rvo( ",\n" );

rvo( "nb_items:".count($page['items']) );
rvo( ",\n" );

rvo( "bounds:" );
if ( isset($cm) )
  rvo( jsgm_bounds( $cm->bounds ) );
else
  rvo( "null" );
rvo( ",\n" );


rvo( "\nnb_clusters:".count($clusters) );
rvo( "," );

rvo( "\nimage_clusters:[\n" );
$i=0;
foreach( $clusters as $c )
{
  if ($i) rvo( ",\n\n" );
  rvo( "{" );
  rvo( 'position:'. jsgm_position( bounds_center($c->bounds) ) );
  rvo( ",\n" );
  rvo( 'bounds:'. jsgm_bounds( $c->bounds ) );
  rvo( ",\n" );
  rvo( 'nb_items:'.count($c->items) );
  rvo( ",\n" );

  rvo( 'blowup_url:"'.rvm_duplicate_blowup_url(array('box'=>$c->bounds), array('start') ). '"' );
  rvo( ",\n" );

  $max_per_cluster = rvm_get_config_var('nb_images_per_marker',20);
  if ( count($c->items) >  $max_per_cluster )
  {
    $c->items = array_slice($c->items, 0, $max_per_cluster);
  }
  rvo( 'items:[' );
  for ($j=0; $j<count($c->items); $j++)
  {
    $img = $page['items'] [ $c->items[$j] ];
    $img['file'] = basename( $img['path'] );
    if (!empty( $img['name'] ) )
      $title = $img['name'];
    else
      $title = str_replace('_', ' ', get_filename_wo_extension($img['file']));

    $params = array(
        'image_id' => $img['id'],
        'image_file' => $img['file'],
        'flat' => 1,
      );
    $page_url = duplicate_picture_url($params, array('start') );

    if ($j) rvo( "," );
    rvo( "{" );
    rvo( "tn:".jsgm_str( get_thumbnail_url( $img ) ) );
    rvo( ",name:".jsgm_str( trigger_event('render_element_description', $title) ) );
    rvo( ",comment:".jsgm_str( trigger_event('render_element_description', $img['comment']) ) );
    rvo( ",page_url:".jsgm_str( $page_url ) );
    rvo( "}" );
  }
  rvo( ']' );
  rvo( "\n" );
  rvo( "}" );
  rvf();
  $i++;
}
rvo( "] /*clusters*/\n" );

$time = get_elapsed_time($t2, get_moment());
$page['queries_time'] = number_format($page['queries_time'],3,'.',' ');
rvo( "\n,debug:'$time; out:".get_elapsed_time($start_output,get_moment()).";$cluster_debug queries:".$page['count_queries']." in ".$page['queries_time']."s'\n" );

rvo( '}' );
rvf();
?>