public function temp_filename_test()
{
$filename = system::temp_filename("file", "ext");
$this->assert_true(file_exists($filename), "File not created");
unlink($filename);
$this->assert_pattern($filename, "|/file.*\\.ext\$|");
}
public function rotate($id, $dir)
{
access::verify_csrf();
$item = model_cache::get("item", $id);
access::required("view", $item);
access::required("edit", $item);
$degrees = 0;
switch ($dir) {
case "ccw":
$degrees = -90;
break;
case "cw":
$degrees = 90;
break;
}
if ($degrees) {
$tmpfile = system::temp_filename("rotate", pathinfo($item->file_path(), PATHINFO_EXTENSION));
gallery_graphics::rotate($item->file_path(), $tmpfile, array("degrees" => $degrees), $item);
$item->set_data_file($tmpfile);
$item->save();
}
if (Input::instance()->get("page_type") == "collection") {
json::reply(array("src" => $item->thumb_url(), "width" => $item->thumb_width, "height" => $item->thumb_height));
} else {
json::reply(array("src" => $item->resize_url(), "width" => $item->resize_width, "height" => $item->resize_height));
}
}
static function item_created($item)
{
if ($item->is_photo()) {
$input_file = $item->file_path();
$output_file = system::temp_filename("rawphoto-", "jpg");
$success = rawphoto_graphics::convert($input_file, $output_file);
if ($success) {
$item->set_data_file($output_file);
$item->save();
unlink($output_file);
}
}
}
/**
* Get PDF file metadata (height and width)
* (ref: movie::get_file_metadata())
*/
static function movie_get_file_metadata($file_path, $metadata)
{
if (strtolower(pathinfo($file_path, PATHINFO_EXTENSION)) == "pdf" && ($path = pdf::find_gs())) {
// Parsing gs output properly can be a pain. So, let's go for a reliable albeit inefficient
// approach: re-extract the frame (into tmp) and get its image size.
$temp_file = system::temp_filename("pdf_", "jpg");
pdf_event::movie_extract_frame($file_path, $temp_file, null, null);
list($metadata->height, $metadata->width) = photo::get_file_metadata($temp_file);
}
}
/**
* Overlay an image on top of the input file.
*
* Valid options are: file, position, transparency, padding
*
* Valid positions: northwest, north, northeast,
* west, center, east,
* southwest, south, southeast
*
* padding is in pixels
*
* @param string $input_file
* @param string $output_file
* @param array $options
* @param Item_Model $item (optional)
*/
static function composite($input_file, $output_file, $options, $item = null)
{
try {
graphics::init_toolkit();
$temp_file = system::temp_filename("composite_", pathinfo($output_file, PATHINFO_EXTENSION));
module::event("graphics_composite", $input_file, $temp_file, $options, $item);
if (@filesize($temp_file) > 0) {
// A graphics_composite event made an image - move it to output_file and use it.
@rename($temp_file, $output_file);
} else {
// No events made an image - proceed with standard process.
list($width, $height) = photo::get_file_metadata($input_file);
list($w_width, $w_height) = photo::get_file_metadata($options["file"]);
$pad = isset($options["padding"]) ? $options["padding"] : 10;
$top = $pad;
$left = $pad;
$y_center = max($height / 2 - $w_height / 2, $pad);
$x_center = max($width / 2 - $w_width / 2, $pad);
$bottom = max($height - $w_height - $pad, $pad);
$right = max($width - $w_width - $pad, $pad);
switch ($options["position"]) {
case "northwest":
$x = $left;
$y = $top;
break;
case "north":
$x = $x_center;
$y = $top;
break;
case "northeast":
$x = $right;
$y = $top;
break;
case "west":
$x = $left;
$y = $y_center;
break;
case "center":
$x = $x_center;
$y = $y_center;
break;
case "east":
$x = $right;
$y = $y_center;
break;
case "southwest":
$x = $left;
$y = $bottom;
break;
case "south":
$x = $x_center;
$y = $bottom;
break;
case "southeast":
$x = $right;
$y = $bottom;
break;
}
Image::factory($input_file)->composite($options["file"], $x, $y, $options["transparency"])->quality(module::get_var("gallery", "image_quality"))->save($output_file);
}
module::event("graphics_composite_completed", $input_file, $output_file, $options, $item);
} catch (ErrorException $e) {
// Unlike rotate and resize, composite catches its exceptions here. This is because
// composite is typically called for watermarks. If during thumb/resize generation
// the watermark fails, we'd still like the image resized, just without its watermark.
// If the exception isn't caught here, graphics::generate will replace it with a
// placeholder.
Kohana_Log::add("error", $e->getMessage());
}
}
