wp-gpx-maps/wp-gpx-maps_utils_nggallery.php at master · wp-plugins/wp-gpx-maps · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
<?php

	function isNGGalleryActive() {
		if (!function_exists('is_plugin_active')) {
			require_once(sitePath() . '/wp-admin/includes/plugin.php');
		}
		return is_plugin_active("nextgen-gallery/nggallery.php");
	}

	function isNGGalleryProActive() {
		if (!function_exists('is_plugin_active')) {
			require_once(sitePath() . '/wp-admin/includes/plugin.php');
		}
		return is_plugin_active("nextgen-gallery-pro/nggallery-pro.php");
	}


	function getNGGalleryImages($ngGalleries, $ngImages, $dt, $lat, $lon, $dtoffset, &$error)
	{

		$result = array();
		$galids = explode(',', $ngGalleries);
		$imgids = explode(',', $ngImages);

		if (!isNGGalleryActive())
			return '';
		try {

			$pictures = array();
			foreach ($galids as $g) {
				$pictures = array_merge($pictures, nggdb::get_gallery($g));
			}
			foreach ($imgids as $i) {
				array_push($pictures, nggdb::find_image($i));
			}

			foreach ($pictures as $p) {

				$item = array();
				$item["data"] = $p->thumbHTML;

				if (is_callable('exif_read_data'))
				{
					$exif = @exif_read_data($p->imagePath);
					if ($exif !== false)
					{
						$item["lon"] = getExifGps($exif["GPSLongitude"], $exif['GPSLongitudeRef']);
						$item["lat"] = getExifGps($exif["GPSLatitude"], $exif['GPSLatitudeRef']);
						if (($item["lat"] != 0) || ($item["lon"] != 0))
						{
							$result[] = $item;
						}
						else if (isset($p->imagedate))
						{
							$_dt = strtotime($p->imagedate) + $dtoffset;
							$_item = findItemCoordinate($_dt, $dt, $lat, $lon);
							if ($_item != null)
							{
								$item["lat"] = $_item["lat"];
								$item["lon"] = $_item["lon"];
								$result[] = $item;
							}
						}
					}
				}
				else
				{
					$error .= "Sorry, <a href='http://php.net/manual/en/function.exif-read-data.php' target='_blank' >exif_read_data</a> function not found! check your hosting..<br />";
				}
			}


/* START FIX NEXT GEN GALLERY 2.x */

			if ( class_exists("C_Component_Registry") )
			{

				$renderer  = C_Component_Registry::get_instance()->get_utility('I_Displayed_Gallery_Renderer');
				$params['gallery_ids']     = $ngGalleries;
				$params['image_ids']       = $ngImages;
				$params['display_type']    = NEXTGEN_GALLERY_BASIC_THUMBNAILS;
				$params['images_per_page'] = 999;
				// also add js references to get the gallery working
				$dummy = $renderer->display_images($params, $inner_content);

	/* START FIX NEXT GEN GALLERY PRO */

				if (preg_match("/data-nplmodal-gallery-id=[\"'](.*?)[\"']/", $dummy, $m))
				{
					$galid = $m[1];
					if ($galid)
					{
						for($i = 0; $i < count($result); ++$i)
						{
							$result[$i]["data"] = str_replace("%PRO_LIGHTBOX_GALLERY_ID%", $galid, $result[$i]["data"]);
						}
					}
				}
	/* END FIX NEXT GEN GALLERY PRO */
			}

/* END FIX NEXT GEN GALLERY 2.x */

		} catch (Exception $e) {
			$error .= 'Error When Retrieving NextGen Gallery galleries/images: $e <br />';
		}

		return $result;
	}

	function findItemCoordinate($imgdt, $dt, $lat, $lon)
	{
		foreach(array_keys($dt) as $i)
		{
			if ($i!=0 && $imgdt >= $dt[$i-1] && $imgdt <= $dt[$i])
			{
				if ($lat[$i] != 0 && $lon[$i] != 0)
					return array( "lat" => $lat[$i], "lon" => $lon[$i] );
			}
		}
		return null;
	}

	function getExifGps($exifCoord, $hemi)
	{
		$degrees = count($exifCoord) > 0 ? gps2Num($exifCoord[0]) : 0;
		$minutes = count($exifCoord) > 1 ? gps2Num($exifCoord[1]) : 0;
		$seconds = count($exifCoord) > 2 ? gps2Num($exifCoord[2]) : 0;
		$flip = ($hemi == 'W' or $hemi == 'S') ? -1 : 1;
		return $flip * ($degrees + $minutes / 60 + $seconds / 3600);
	}

	function gps2Num($coordPart)
	{
		$parts = explode('/', $coordPart);
		if (count($parts) <= 0)
			return 0;
		if (count($parts) == 1)
			return $parts[0];
		$lat = floatval($parts[0]);
		$lon = floatval($parts[1]);
		if ($lon == 0)
			return $lat;
		return $lat / $lon;
	}

?>