public static function CreateThumb($site, $image, $filename, $folder = 'files')
{
// directory
$dir = SITES_LOCATION . '/' . $site['FriendlyId'] . '/' . $folder . '/';
// set thumb size
$target_w = THUMB_MAX_WIDTH;
$target_h = THUMB_MAX_HEIGHT;
list($curr_w, $curr_h, $type, $attr) = Image::getImageInfo($image);
$ext = 'jpg';
switch ($type) {
// create image
case IMAGETYPE_JPEG:
$ext = 'jpg';
break;
case IMAGETYPE_PNG:
$ext = 'png';
break;
case IMAGETYPE_GIF:
$ext = 'gif';
break;
case 'image/svg+xml':
$ext = 'svg';
break;
default:
return false;
}
$scale_h = $target_h / $curr_h;
$scale_w = $target_w / $curr_w;
$factor_x = $curr_w / $target_w;
$factor_y = $curr_h / $target_h;
if ($factor_x > $factor_y) {
$factor = $factor_y;
} else {
$factor = $factor_x;
}
$up_w = ceil($target_w * $factor);
$up_h = ceil($target_h * $factor);
$x_start = ceil(($curr_w - $up_w) / 2);
$y_start = ceil(($curr_h - $up_h) / 2);
switch ($type) {
// create image
case IMAGETYPE_JPEG:
$n_img = imagecreatefromjpeg($image);
break;
case IMAGETYPE_PNG:
$n_img = imagecreatefrompng($image);
break;
case IMAGETYPE_GIF:
$n_img = imagecreatefromgif($image);
break;
case 'image/svg+xml':
break;
default:
return false;
}
$dst_img = ImageCreateTrueColor($target_w, $target_h);
switch ($type) {
// fix for transparency issues
case IMAGETYPE_PNG:
imagealphablending($dst_img, true);
imagesavealpha($dst_img, true);
$transparent_color = imagecolorallocatealpha($dst_img, 0, 0, 0, 127);
imagefill($dst_img, 0, 0, $transparent_color);
break;
case IMAGETYPE_GIF:
$transparency_index = imagecolortransparent($dst_img);
if ($transparency_index >= 0) {
$transparent_color = imagecolorsforindex($dst_img, $transparency_index);
$transparency_index = imagecolorallocate($dst_img, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($dst_img, 0, 0, $transparency_index);
imagecolortransparent($dst_img, $transparency_index);
}
break;
default:
break;
}
// (for testing) die('curr_w='.$curr_w.' curr_h='.$curr_h.' x_start='.$x_start.' y_start='.$y_start.' target_w='.$target_w.' target_h='.$target_h.' up_w='.$up_w.' up_h='.$up_h);
if ($type != 'image/svg+xml') {
imagecopyresampled($dst_img, $n_img, 0, 0, $x_start, $y_start, $target_w, $target_h, $up_w, $up_h);
}
//return $dst_img;
$full = $dir . 'thumbs/' . $filename;
if (!file_exists($dir)) {
mkdir($dir, 0777, true);
}
switch ($ext) {
case 'jpg':
// save file on S3
if (FILES_ON_S3 == true) {
// write image and copy buffer
ob_start();
imagejpeg($dst_img, NULL, 100);
$contents = ob_get_contents();
ob_end_clean();
$meta = array('width' => $target_w, 'height' => $target_h);
S3::SaveContents($site, $type, 'thumbs/' . $filename, $contents, $meta, $folder);
} else {
// save file locally
imagejpeg($dst_img, $full, 100);
}
break;
case 'png':
// save file on S3
if (FILES_ON_S3 == true) {
// write image and copy buffer
ob_start();
imagepng($dst_img, NULL);
$contents = ob_get_contents();
ob_end_clean();
$meta = array('width' => $target_w, 'height' => $target_h);
S3::SaveContents($site, $type, 'thumbs/' . $filename, $contents, $meta, $folder);
} else {
// save file locally
imagepng($dst_img, $full);
}
break;
case 'gif':
// save file on S3
if (FILES_ON_S3 == true) {
// write image and copy buffer
ob_start();
imagegif($dst_img, null);
$meta = array();
$contents = ob_get_contents();
ob_end_clean();
S3::SaveContents($site, $type, 'thumbs/' . $filename, $contents, $meta, $folder);
} else {
// save file locally
imagegif($dst_img, $full);
}
break;
case 'svg':
// save file on S3
if (FILES_ON_S3 == true) {
S3::SaveFile($site, $type, 'thumbs/' . $filename, $image, $folder);
} else {
// save file locally
copy($image, $full);
}
break;
default:
return false;
return true;
}
}
