131 lines
4.3 KiB
PHP
131 lines
4.3 KiB
PHP
<?php
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function wpgpxmaps_isNGGalleryActive() {
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if ( ! function_exists( 'is_plugin_active' ) ) {
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require_once( wp_gpx_maps_sitePath() . '/wp-admin/includes/plugin.php' );
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}
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return is_plugin_active( 'nextgen-gallery/nggallery.php' );
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}
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function wpgpxmaps_isNGGalleryProActive() {
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if ( ! function_exists( 'is_plugin_active' ) ) {
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require_once( wp_gpx_maps_sitePath() . '/wp-admin/includes/plugin.php' );
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}
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return is_plugin_active( 'nextgen-gallery-pro/nggallery-pro.php' );
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}
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function getNGGalleryImages( $ngGalleries, $ngImages, $dt, $lat, $lon, $dtoffset, &$error ) {
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$result = array();
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$galids = explode( ',', $ngGalleries );
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$imgids = explode( ',', $ngImages );
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if ( ! wpgpxmaps_isNGGalleryActive() )
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return '';
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try {
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$pictures = array();
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foreach ( $galids as $g ) {
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$pictures = array_merge( $pictures, nggdb::get_gallery( $g ) );
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}
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foreach ( $imgids as $i ) {
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array_push( $pictures, nggdb::find_image( $i ) );
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}
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foreach ( $pictures as $p ) {
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$item = array();
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$item['data'] = $p->thumbHTML;
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if ( is_callable( 'exif_read_data' ) ) {
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$exif = @exif_read_data( $p->imagePath );
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if ( $exif !== false ) {
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$item['lon'] = (array_key_exists('GPSLongiture', $exif) and array_key_exists('GPSLongitudeRef', $exif)) ?
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getExifGps( $exif['GPSLongitude'], $exif['GPSLongitudeRef'] ) : 0;
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$item['lat'] = (array_key_exists('GPSLatitude', $exif) and array_key_exists('GPSLatitudeRef', $exif)) ?
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getExifGps( $exif['GPSLatitude'], $exif['GPSLatitudeRef'] ) : 0;
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if ( ( $item['lat'] != 0 ) || ( $item['lon'] != 0 ) ) {
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$result[] = $item;
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} elseif ( isset( $p->imagedate ) ) {
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$_dt = strtotime( $p->imagedate ) + $dtoffset;
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$_item = findItemCoordinate( $_dt, $dt, $lat, $lon );
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if ( $_item != null ) {
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$item['lat'] = $_item['lat'];
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$item['lon'] = $_item['lon'];
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$result[] = $item;
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}
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}
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}
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} else {
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$error .= "Sorry, <a href='https://php.net/manual/en/function.exif-read-data.php' target='_blank' rel='noopener noreferrer'>exif_read_data</a> function not found! check your hosting..<br />";
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}
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}
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/* START FIX NEXT GEN GALLERY 2.x */
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if ( class_exists( 'C_Component_Registry' ) ) {
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$renderer = C_Component_Registry::get_instance()->get_utility( 'I_Displayed_Gallery_Renderer' );
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$params['gallery_ids'] = $ngGalleries;
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$params['image_ids'] = $ngImages;
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$params['display_type'] = NEXTGEN_GALLERY_BASIC_THUMBNAILS;
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$params['images_per_page'] = 999;
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/* Salso add js references to get the gallery working */
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$dummy = $renderer->display_images( $params, $inner_content );
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/* START FIX NEXT GEN GALLERY PRO */
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if ( preg_match( "/data-nplmodal-gallery-id=[\"'](.*?)[\"']/", $dummy, $m ) ) {
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$galid = $m[1];
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if ( $galid ) {
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for( $i = 0; $i < count( $result ); ++$i ) {
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$result[$i]['data'] = str_replace( '%PRO_LIGHTBOX_GALLERY_ID%', $galid, $result[$i]['data'] );
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}
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}
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}
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/* END FIX NEXT GEN GALLERY PRO */
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}
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/* END FIX NEXT GEN GALLERY 2.x */
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} catch ( Exception $e ) {
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$error .= 'Error When Retrieving NextGen Gallery galleries/images: $e <br />';
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}
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return $result;
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}
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function findItemCoordinate( $imgdt, $dt, $lat, $lon ) {
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foreach ( array_keys( $dt ) as $i ) {
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if ( $i!=0 && $imgdt >= $dt[$i-1] && $imgdt <= $dt[$i] ) {
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if ( $lat[$i] != 0 && $lon[$i] != 0 )
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return array( 'lat' => $lat[$i], 'lon' => $lon[$i] );
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}
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}
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return null;
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}
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function getExifGps( $exifCoord, $hemi ) {
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$degrees = count( $exifCoord ) > 0 ? gps2Num( $exifCoord[0] ) : 0;
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$minutes = count( $exifCoord ) > 1 ? gps2Num( $exifCoord[1] ) : 0;
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$seconds = count( $exifCoord ) > 2 ? gps2Num( $exifCoord[2] ) : 0;
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$flip = ( $hemi == 'W' or $hemi == 'S' ) ? -1 : 1;
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return $flip * ( $degrees + $minutes / 60 + $seconds / 3600);
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}
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function gps2Num( $coordPart ) {
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$parts = explode( '/', $coordPart );
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if ( count( $parts ) <= 0 )
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return 0;
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if ( count( $parts ) == 1 )
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return $parts[0];
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$lat = floatval( $parts[0] );
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$lon = floatval( $parts[1] );
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if ($lon == 0 )
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return $lat;
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return $lat / $lon;
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}
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?>
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