shortcode.php

<?php

if ( !function_exists('cgmp_autoimage_shortcode_handler') ):
    function cgmp_autoimage_shortcode_handler($attr, $content = null, $code = null) {

        if (is_admin() || is_feed()) {
            return;
        }


        global $post;

        $args = array(
           'post_type' => 'attachment',
           'post_parent' => $post->ID
          );

        $attachments = get_posts( $args );
        $list_coord_gps="";


        if ( $attachments ) {
            foreach ( $attachments as $attachment ) {

                $image_attributes = wp_get_attachment_image_src($attachment->ID,'full');
                $image_thumbnail = wp_get_attachment_image_src($attachment->ID,'thumbnail');

                // from http://stackoverflow.com/questions/2526304/php-extract-gps-exif-data
                $exif = exif_read_data($image_attributes[0], 0, false);


                if ( $exif ) {
                    $gps['LatDegree']=$exif["GPSLatitude"][0];
                    $gps['LatMinute']=$exif["GPSLatitude"][1];
                    $gps['LatSeconds']=$exif["GPSLatitude"][2];
                    $gps['LongDegree']=$exif["GPSLongitude"][0];
                    $gps['LongMinute']=$exif["GPSLongitude"][1];
                    $gps['LongSeconds']=$exif["GPSLongitude"][2];

                    //get the Hemisphere multiplier
                    $LatM = 1;
                    $LongM = 1;

                    if($exif["GPSLatitudeRef"] == 'S')
                    {
                    $LatM = -1;
                    }

                    if($exif["GPSLongitudeRef"] == 'W')
                    {
                    $LongM = -1;
                    }


                    //convert strings to numbers
                    foreach($gps as $key => $value)
                    {
                        $pos = strpos($value, '/');
                        if($pos !== false)
                        {
                            $temp = explode('/',$value);
                            $gps[$key] = $temp[0] / $temp[1];
                        }
                    }

                    //calculate the decimal degree
                    $result['latitude'] = $LatM * ($gps['LatDegree'] + ($gps['LatMinute'] / 60) + ($gps['LatSeconds'] / 3600));
                    $result['longitude'] = $LongM * ($gps['LongDegree'] + ($gps['LongMinute'] / 60) + ($gps['LongSeconds'] / 3600));


                    if( $result['latitude'] && $result['longitude'] ) {
                        // Store image data
                        if (!isset($nbimages)){
                            $nbimages=1;
                        }else{
                            $nbimages++;
                        }

                        $tab_coord_gps[$nbimages]['date']=$exif["DateTime"];
                        $tab_coord_gps[$nbimages]['latlong']=$result['latitude'].",".$result['longitude'];
                        $tab_coord_gps[$nbimages]['marker']="1-default.png";
                        $tab_coord_gps[$nbimages]['thumb'].="#@$image_thumbnail[0]#@";
                    }

                }

            }


                // Sort photos by date
                foreach($tab_coord_gps as $c=>$key) {
                    $sort_date[] = $key['date'];
                }

                array_multisort($sort_date, SORT_ASC, $tab_coord_gps);



                // Prepare string for addmarkerlist
                $nbimages=1;

                                foreach($tab_coord_gps as $img)
                                {

                                    if (!empty($list_coord_gps)){
                                            $list_coord_gps.="|";
                                            $nbimages++;
                                    }
                    $list_coord_gps.=$img['latlong'];
                    $list_coord_gps.="{}".$img['marker'];
                    $list_coord_gps.="{}Image n&deg;".$nbimages."#-";
                    $list_coord_gps.=$img['thumb'];
                    $date=date_create_from_format('Y:m:d H:i:s', $img['date']);
                    $list_coord_gps.="#-".date_format($date,'d/m/Y H:i:s');
                    $list_coord_gps.="#-#*".$img['latlong']."#*";
                                }






            $shortcode_attribs = shortcode_atts(array(
                'latitude' => 0,
                'longitude' => 0,
                'zoom' => '12',
                'width' => 600,
                'height' => 500,
                'maptype' => 'terrain',
                'maptypecontrol' => 'true',
                'pancontrol' => 'false',
                'addresscontent' => '',
                'zoomcontrol' => 'true',
                'scalecontrol' => 'true',
                'streetviewcontrol' => 'true',
                'scrollwheelcontrol' => 'false',
                'showbike' => 'false',
                'bubbleautopan' => 'true',
                'showtraffic' => 'false',
                'showpanoramio' => 'false',
                'addmarkerlist' => $list_coord_gps,
                'kml' => '',
                'directionhint' => 'false',
                'mapalign' => 'center',
                'panoramiouid' => '',
                'addmarkermashup' => 'false',
                'language' => 'default',
                'poweredby' => 'true',
                'draggable' => 'true',
                'tiltfourtyfive' => 'false',
                'addmarkermashupbubble' => 'false'), $attr);

            return "<br style=\"clear: both;\" /><br><br>".cgmp_shortcode_googlemap_handler($shortcode_attribs);
        }else{
            return;
        }
    }
endif;


?>