/**
* Renders internal and external media with exif info at bottom of each JPEG image
*
* @author Andreas Gohr <*****@*****.**>
* @param string $src media ID
* @param string $title descriptive text
* @param string $align left|center|right
* @param int $width width of media in pixel
* @param int $height height of media in pixel
* @param string $cache cache|recache|nocache
* @param bool $render should the media be embedded inline or just linked
* @return string
*/
function _media($src, $title = null, $align = null, $width = null, $height = null, $cache = null, $render = true)
{
$ret = '';
list($ext, $mime) = mimetype($src);
if (substr($mime, 0, 5) == 'image') {
// first get the $title
if (!is_null($title)) {
$title = $this->_xmlEntities($title);
} elseif ($ext == 'jpg' || $ext == 'jpeg') {
//try to use the caption from IPTC/EXIF
require_once DOKU_INC . 'lib/plugins/colorbox/JpegMetaGPS.php';
$jpeg = new JpegMetaGPS(mediaFN($src));
if ($jpeg !== false) {
$cap = $jpeg->getTitle();
}
if (!empty($cap)) {
$title = $this->_xmlEntities($cap);
}
}
if (!$render) {
// if the picture is not supposed to be rendered
// return the title of the picture
if (!$title) {
// just show the sourcename
$title = $this->_xmlEntities(utf8_basename(noNS($src)));
}
return $title;
}
//add image tag
if (($ext == 'jpg' || $ext == 'jpeg') && !$width && !strpos($src, 'wiki:dokuwiki')) {
// force to scale image to 680px
$ret .= '<img src="' . ml($src, array('w' => "680", 'h' => $height, 'cache' => $cache, 'rev' => $this->_getLastMediaRevisionAt($src))) . '"';
} else {
$ret .= '<img src="' . ml($src, array('w' => $width, 'h' => $height, 'cache' => $cache, 'rev' => $this->_getLastMediaRevisionAt($src))) . '"';
}
$ret .= ' class="media' . $align . '"';
if ($title) {
$ret .= ' title="' . $title . '"';
$ret .= ' alt="' . $title . '"';
} else {
$ret .= ' alt=""';
}
if (!is_null($width)) {
$ret .= ' width="' . $this->_xmlEntities($width) . '"';
}
if (!is_null($height)) {
$ret .= ' height="' . $this->_xmlEntities($height) . '"';
}
// add exif and gps info at the bottom of each image
if ($ext == 'jpg' || $ext == 'jpeg') {
//try to use the caption from IPTC/EXIF
if (!$jepg) {
require_once DOKU_INC . 'lib/plugins/colorbox/JpegMetaGPS.php';
$jpeg = new JpegMetaGPS(mediaFN($src));
}
if ($jpeg !== false) {
$infoshort = $jpeg->getShortExifInfo();
$info = $jpeg->getExifInfo();
$gpslink = $jpeg->getGPSInfo();
$ret .= ' exif="' . implode(';', array_map(function ($v, $k) {
if ($v) {
return strtolower($k) . ':' . $v . '';
}
}, $infoshort, array_keys($infoshort))) . '"';
if ($gpslink) {
$ret .= ' map="' . $gpslink . '"';
}
$ret .= ' token="' . media_get_token($src, "1360", $height) . '"';
$ret .= '/></a>';
$ret .= '<div class="exiftitle">' . $title . '</div>';
$ret .= '<div class="exif">';
$ret .= implode(', ', array_map(function ($v, $k) {
return $k . '=' . $v;
}, $info, array_keys($info)));
if ($gpslink) {
$ret .= ' <a href=' . $gpslink . '>Google GPS Location';
}
$ret .= ' </a></div>';
$ret .= '<a>';
}
}
//
} elseif (media_supportedav($mime, 'video') || media_supportedav($mime, 'audio')) {
// first get the $title
$title = !is_null($title) ? $this->_xmlEntities($title) : false;
if (!$render) {
// if the file is not supposed to be rendered
// return the title of the file (just the sourcename if there is no title)
return $title ? $title : $this->_xmlEntities(utf8_basename(noNS($src)));
}
$att = array();
$att['class'] = "media{$align}";
if ($title) {
$att['title'] = $title;
}
if (media_supportedav($mime, 'video')) {
//add video
$ret .= $this->_video($src, $width, $height, $att);
}
if (media_supportedav($mime, 'audio')) {
//add audio
$ret .= $this->_audio($src, $att);
}
} elseif ($mime == 'application/x-shockwave-flash') {
if (!$render) {
// if the flash is not supposed to be rendered
// return the title of the flash
if (!$title) {
// just show the sourcename
$title = utf8_basename(noNS($src));
}
return $this->_xmlEntities($title);
}
$att = array();
$att['class'] = "media{$align}";
if ($align == 'right') {
$att['align'] = 'right';
}
if ($align == 'left') {
$att['align'] = 'left';
}
$ret .= html_flashobject(ml($src, array('cache' => $cache), true, '&'), $width, $height, array('quality' => 'high'), null, $att, $this->_xmlEntities($title));
} elseif ($title) {
// well at least we have a title to display
$ret .= $this->_xmlEntities($title);
} else {
// just show the sourcename
$ret .= $this->_xmlEntities(utf8_basename(noNS($src)));
}
return $ret;
}
/**
* Defines how a thumbnail should look like
*/
function _image(&$img, $data)
{
global $ID;
global $conf;
// calculate thumbnail size
if (!$data['crop']) {
$w = (int) $this->_meta($img, 'width');
$h = (int) $this->_meta($img, 'height');
if ($conf['syslog']) {
syslog(LOG_WARNING, '[gallery:syntax.php] image file: ' . $conf['mediadir'] . utf8_encodeFN(str_replace(':', '/', $img['id'])) . $img['file'] . '. size: ' . $w . 'x' . $h);
}
if ($w && $h) {
$dim = array();
if ($w > $data['tw'] || $h > $data['th']) {
$fr = $w / $h;
if ($fr >= $data['tw'] / $data['th']) {
$w = $data['tw'];
$h = round($w / $fr);
} else {
$h = $data['th'];
$w = round($h * $fr);
}
$dim = array('w' => $w, 'h' => $h);
if ($conf['syslog']) {
syslog(LOG_WARNING, '[gallery:syntax.php] image file: ' . $conf['mediadir'] . utf8_encodeFN(str_replace(':', '/', $img['id'])) . $img['file'] . '. reize to: ' . $w . 'x' . $h);
}
}
} else {
// this should not happen but if it does this usually means a corrupted image file therefore we want to log it
syslog(LOG_WARNING, 'no size info found which is likely due to corrupted image file. force crop to ' . $data['tw'] . 'x' . $data['th'] . '. file: ' . $conf['mediadir'] . utf8_encodeFN(str_replace(':', '/', $img['id'])) . $img['file']);
$data['crop'] = true;
// no size info -> always crop
}
}
if ($data['crop']) {
$w = $data['tw'];
$h = $data['th'];
$dim = array('w' => $w, 'h' => $h);
}
//prepare img attributes
$i = array();
$i['width'] = $w;
$i['height'] = $h;
$i['border'] = 0;
if ($this->_meta($img, 'title')) {
$i['alt'] = $this->_meta($img, 'title');
} else {
$i['alt'] = end(explode(":", $img['id']));
}
$i['longdesc'] = str_replace("\n", ' ', $this->_meta($img, 'desc'));
if (!$i['longdesc']) {
unset($i['longdesc']);
}
$i['class'] = 'tn';
// get exif and gps info
$orientation = $img['meta']->getField("Orientation");
if ($conf['syslog']) {
syslog(LOG_WARNING, '[gallery:syntax.php] orientation: ' . $orientation);
}
switch ($orientation) {
case 6:
if ($i['width'] > $i['height']) {
// swap width and height if the image is going to be rotated vertically
if ($conf['syslog']) {
syslog(LOG_WARNING, 'swap width and height as the image is going to be rotated vertically');
}
$old_width = $i['width'];
$i['width'] = $i['height'];
$i['height'] = $old_width;
}
break;
case 8:
if ($i['width'] > $i['height']) {
// swap width and height if the image is going to be rotated vertically
if ($conf['syslog']) {
syslog(LOG_WARNING, 'swap width and height as the image is going to be rotated vertically');
}
$old_width = $i['width'];
$i['width'] = $i['height'];
$i['height'] = $old_width;
}
break;
}
require_once DOKU_INC . 'lib/plugins/colorbox/JpegMetaGPS.php';
$jpeg = new JpegMetaGPS(mediaFN($img['id']));
if ($jpeg !== false) {
$info = $jpeg->getShortExifInfo();
$gpslink = $jpeg->getGPSInfo();
if ($info) {
$i['exif'] = implode(';', array_map(function ($v, $k) {
if ($v) {
return strtolower($k) . ':' . $v . '';
}
}, $info, array_keys($info)));
}
if ($gpslink) {
$i['map'] = $gpslink;
}
$i['token'] = media_get_token($img['id'], "1360", "0");
}
$iatt = buildAttributes($i);
$src = ml($img['id'], $dim);
// prepare lightbox dimensions
$w_lightbox = (int) $this->_meta($img, 'width');
$h_lightbox = (int) $this->_meta($img, 'height');
$dim_lightbox = array();
if ($w_lightbox > $data['iw'] || $h_lightbox > $data['ih']) {
$ratio = $this->_ratio($img, $data['iw'], $data['ih']);
$w_lightbox = floor($w_lightbox * $ratio);
$h_lightbox = floor($h_lightbox * $ratio);
$dim_lightbox = array('w' => $w_lightbox, 'h' => $h_lightbox);
}
//prepare link attributes
$a = array();
$a['title'] = $this->_meta($img, 'title');
if ($data['lightbox']) {
$href = ml($img['id'], $dim_lightbox);
$a['class'] = "lightbox JSnocheck";
$a['rel'] = 'lightbox[gal-' . substr(md5($ID), 4) . ']';
//unique ID for the gallery
} elseif ($img['detail'] && !$data['direct']) {
$href = $img['detail'];
} else {
$href = ml($img['id'], array('id' => $ID), $data['direct']);
}
$aatt = buildAttributes($a);
// prepare output
$ret = '';
$ret .= '<a href="' . $href . '" ' . $aatt . '>';
$ret .= '<img src="' . $src . '" ' . $iatt . ' />';
$ret .= '</a>';
return $ret;
}