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
}
$this->redirect("/browse");
//on to view!
}
//mega: AIzaSyALc9l8tOL3WZiGQ1Av3CsLsJdZyt477KA
//noname: AIzaSyC9VwjNP3Yrk0pdsQeidKMuVJhnj70OfA0
use_javascript("https://www.google.com/jsapi?key=AIzaSyC9VwjNP3Yrk0pdsQeidKMuVJhnj70OfA0");
//See https://code.google.com/apis/console/#project:326513611386:overview
use_javascript("formatted_colors.js");
use_javascript("google_images.js");
//use_javascript("jquery-ui.js");
//use_stylesheet("jquery-ui.css");
use_javascript("base64.js");
use_javascript("canvas2image.js");
if (isset($img_path)) {
?>
<div class="mosaic-wrapper">
<?php
$img = ImageManipulation::imagecreatefrom($img_path);
//Returns Image object.
MosaicGenerator::printCanvasMosaic($img, $cell_size, $keywords);
//Defines three Javascript variables: The color matrix, the size of each image, and the keywords.
?>
<script src="/js/generate_mosaic.js"> </script> <!-- Picks up three variables from printCanvasMosaic(), creates canvas mosaic !-->
<div class="mosaic-actions">
<div class="tweak-size">
<p>Mosaic Size: </p>
<select>
<option value="300">Small </option>
<option value="600" selected>Medium </option>
<option value="900">Large </option>
<option value="1600">Huge </option>
</select>
