/**
* Crops the given image to the wanted ratio, then calls media_resize_image to scale it
* to the wanted size
*
* Crops are centered horizontally but prefer the upper third of an vertical
* image because most pics are more interesting in that area (rule of thirds)
*
* @author Andreas Gohr <*****@*****.**>
*/
function media_crop_image($file, $ext, $w, $h = 0)
{
global $conf;
if (!$h) {
$h = $w;
}
$info = @getimagesize($file);
//get original size
if ($info == false) {
return $file;
}
// that's no image - it's a spaceship!
// calculate crop size
$fr = $info[0] / $info[1];
$tr = $w / $h;
if ($tr >= 1) {
if ($tr > $fr) {
$cw = $info[0];
$ch = (int) $info[0] / $tr;
} else {
$cw = (int) $info[1] * $tr;
$ch = $info[1];
}
} else {
if ($tr < $fr) {
$cw = (int) $info[1] * $tr;
$ch = $info[1];
} else {
$cw = $info[0];
$ch = (int) $info[0] / $tr;
}
}
// calculate crop offset
$cx = (int) ($info[0] - $cw) / 2;
$cy = (int) ($info[1] - $ch) / 3;
//cache
$local = getCacheName($file, '.media.' . $cw . 'x' . $ch . '.crop.' . $ext);
$mtime = @filemtime($local);
// 0 if not exists
if ($mtime > @filemtime($file) || media_crop_imageIM($ext, $file, $info[0], $info[1], $local, $cw, $ch, $cx, $cy) || media_resize_imageGD($ext, $file, $cw, $ch, $local, $cw, $ch, $cx, $cy)) {
if ($conf['fperm']) {
chmod($local, $conf['fperm']);
}
return media_resize_image($local, $ext, $w, $h);
}
//still here? cropping failed
return media_resize_image($file, $ext, $w, $h);
}
/**
* Crops the given image to the wanted ratio, then calls media_resize_image to scale it
* to the wanted size
*
* Crops are centered horizontally but prefer the upper third of an vertical
* image because most pics are more interesting in that area (rule of thirds)
*
* @author Andreas Gohr <*****@*****.**>
*/
function media_crop_image($file, $ext, $w, $h = 0)
{
global $conf;
if (!$h) {
$h = $w;
}
$info = @getimagesize($file);
//get original size
if ($info == false) {
return $file;
}
// that's no image - it's a spaceship!
// calculate crop size
$fr = $info[0] / $info[1];
$tr = $w / $h;
// check if the crop can be handled completely by resize,
// i.e. the specified width & height match the aspect ratio of the source image
if ($w == round($h * $fr)) {
return media_resize_image($file, $ext, $w);
}
if ($tr >= 1) {
if ($tr > $fr) {
$cw = $info[0];
$ch = (int) ($info[0] / $tr);
} else {
$cw = (int) ($info[1] * $tr);
$ch = $info[1];
}
} else {
if ($tr < $fr) {
$cw = (int) ($info[1] * $tr);
$ch = $info[1];
} else {
$cw = $info[0];
$ch = (int) ($info[0] / $tr);
}
}
// calculate crop offset
$cx = (int) (($info[0] - $cw) / 2);
$cy = (int) (($info[1] - $ch) / 3);
//cache
$local = getCacheName($file, '.media.' . $cw . 'x' . $ch . '.crop.' . $ext);
$mtime = @filemtime($local);
// 0 if not exists
if ($mtime > @filemtime($file) || media_crop_imageIM($ext, $file, $info[0], $info[1], $local, $cw, $ch, $cx, $cy) || media_resize_imageGD($ext, $file, $cw, $ch, $local, $cw, $ch, $cx, $cy)) {
if (!empty($conf['fperm'])) {
@chmod($local, $conf['fperm']);
}
return media_resize_image($local, $ext, $w, $h);
}
//still here? cropping failed
return media_resize_image($file, $ext, $w, $h);
}
/**
* Crops the given image to the wanted ratio, then calls media_resize_image to scale it
* to the wanted size
*
* Crops are centered horizontally but prefer the upper third of an vertical
* image because most pics are more interesting in that area (rule of thirds)
*
* @author Andreas Gohr <*****@*****.**>
*/
function media_crop_image($file, $ext, $w, $h = 0)
{
global $conf;
if (!$h) {
$h = $w;
}
$info = @getimagesize($file);
//get original size
if ($info == false) {
return $file;
}
// that's no image - it's a spaceship!
if ($conf['syslog']) {
syslog(LOG_WARNING, '[media.php] media_crop_image: ' . $file . ', size: ' . $info[0] . 'x' . $info[1] . ', resize to:' . $w . 'x' . $h);
}
// calculate crop size
$fr = $info[0] / $info[1];
$tr = $w / $h;
// check if the crop can be handled completely by resize,
// i.e. the specified width & height match the aspect ratio of the source image
// check rounding for either width or height to avoid cropping for portrait photos
if ($w == round($h * $fr) || $h == round($w / $fr)) {
if ($conf['syslog']) {
syslog(LOG_WARNING, '[media.php] media_crop_image: use media_resize_image instead: ' . $file . ', width: ' . $w);
}
return media_resize_image($file, $ext, $w);
}
if ($conf['syslog']) {
syslog(LOG_WARNING, '[media.php] media_crop_image: resize is not possible and we are doing crop now');
}
if ($conf['syslog']) {
syslog(LOG_WARNING, '[media.php] media_crop_image: fr: ' . $fr . ' tr: ' . $tr . ' round w: ' . round($h * $fr)) . ' round h:' . round($w / $fr);
}
if ($tr >= 1) {
if ($tr > $fr) {
$cw = $info[0];
$ch = (int) ($info[0] / $tr);
} else {
$cw = (int) ($info[1] * $tr);
$ch = $info[1];
}
} else {
if ($tr < $fr) {
$cw = (int) ($info[1] * $tr);
$ch = $info[1];
} else {
$cw = $info[0];
$ch = (int) ($info[0] / $tr);
}
}
// calculate crop offset
$cx = (int) (($info[0] - $cw) / 2);
$cy = (int) (($info[1] - $ch) / 3);
//cache
$local = getCacheName($file, '.media.' . $cw . 'x' . $ch . '.crop.' . $ext);
$mtime = @filemtime($local);
// 0 if not exists
if ($mtime > @filemtime($file) || media_crop_imageIM($ext, $file, $info[0], $info[1], $local, $cw, $ch, $cx, $cy) || media_resize_imageGD($ext, $file, $cw, $ch, $local, $cw, $ch, $cx, $cy)) {
if (!empty($conf['fperm'])) {
@chmod($local, $conf['fperm']);
}
return media_resize_image($local, $ext, $w, $h);
}
//still here? cropping failed
return media_resize_image($file, $ext, $w, $h);
}
