public function executeGenerate(sfWebRequest $request)
{
//data passes from index -> generate -> view. generate uses redirect at end.
//hidden input field
$this->generate_mosaic = $request->getPostParameter("generate");
if ($this->generate_mosaic == "1") {
$base_path = "/var/www/symfony/web/uploads/";
//this is where the images go.
$all_files = $request->getFiles();
$file = $all_files["image"];
$fname = $file["name"];
$fmime = $file["type"];
$ftmp = $file["tmp_name"];
//temp path
$fsize = $file["size"];
$new_fname = uniqid();
//random name
while (file_exists($base_path . $new_fname)) {
$new_fname = uniqid();
}
$img_path = $base_path . $new_fname;
move_uploaded_file($ftmp, $img_path);
//move image from temp path to uploads path.
$img = ImageManipulation::imagecreatefrom($img_path);
//see lib/image_lib.php. returns Image object.
$img_width = imagesx($img);
$img_height = imagesy($img);
$img_ratio = $img_height / $img_width;
$user_width = $request->getPostParameter("size");
//specified by user.
$cell_sizes = array("small" => 5, "medium" => 15, "large" => 30);
//user uses semantic descriptions (eg. "small").
if (array_key_exists($user_width, $cell_sizes)) {
$cell_size = $cell_sizes[$user_width];
//match semantic user size with pixel value from $cell_sizes
} else {
$cell_size = $cell_sizes["medium"];
//default
}
$user_large_mosaic = $request->getPostParameter("large_mosaic");
//Checkbox for large mosaic
$mosaic_width = 600;
$mosaic_height = ceil($mosaic_width * $img_ratio);
//Height adjusts to ratio.
$new_img_width = $mosaic_width / $cell_size;
//Image shrunk down so that later, $new_img_width * $cell_size = $mosaic_w
$new_img_height = ceil($new_img_width * $img_ratio);
$size_arr = getimagesize($img_path);
//getimagesize() gets size from path; imagesx() gets size from Image object.
ImageManipulation::resize_image($img_path, $img, $size_arr, $new_img_width, $new_img_height);
//See lib/image_lib.php. No returns, resizes image.
$keywords = $request->getPostParameter("keywords");
if (empty($keywords)) {
$keywords = "cars";
//Default
}
$this->getUser()->setAttribute("img_path", $img_path);
//Set Session variable. That way, if user refreshes, mosaic is still there.
$this->getUser()->setAttribute("cell_size", $cell_size);
//Same for cell sizes.
$this->getUser()->setAttribute("keywords", $keywords);
//Same for key
}
$this->redirect("/browse");
//on to view!
}
