public static function create_gradient($direction, $size, $from, $to, $stops = false)
{
if (!class_exists('GradientGD')) {
include dirname(__FILE__) . '/libraries/gradientgd.php';
}
$file = "{$direction}_{$size}_" . str_replace('#', '', $from) . "_" . str_replace('#', '', $to) . ".png";
if ($direction == 'horizontal') {
$height = 50;
$width = $size;
$repeat = 'y';
} else {
$height = $size;
$width = 50;
$repeat = 'x';
}
if (!Scaffold_Cache::exists('gradients/' . $file)) {
Scaffold_Cache::create('gradients');
$file = Scaffold_Cache::find('gradients') . '/' . $file;
$gradient = new GradientGD($width, $height, $direction, $from, $to, $stops);
$gradient->save($file);
}
$file = Scaffold_Cache::find('gradients') . '/' . $file;
self::$gradients[] = array($direction, $size, $from, $to, $file);
$properties = "\n\t\t\tbackground-position: top left;\n\t\t background-repeat: repeat-{$repeat};\n\t\t background-image: url(" . Scaffold::url_path($file) . ");\n\t\t";
return $properties;
}
public static function create_rgba($r, $g, $b, $a)
{
if (!class_exists('RgbaGd')) {
include dirname(__FILE__) . '/libraries/rgbagd.php';
}
$file = "color_r{$r}_g{$g}_b{$b}_a{$a}.png";
$alpha = intval(127 - 127 * $a);
if (!Scaffold_Cache::exists('rgba/' . $file)) {
Scaffold_Cache::create('rgba');
$file = Scaffold_Cache::find('rgba') . '/' . $file;
$rgba = new RgbaGd($r, $g, $b, $alpha);
$rgba->save($file);
}
$file = Scaffold_Cache::find('rgba') . '/' . $file;
self::$rgba[] = array($r, $g, $b, $alpha);
$properties = "\n\t\t\tbackground-position: top left;\n\t\t background-repeat: repeat;\n\t\t background-image: url(" . Scaffold::url_path($file) . ") !important;\n\t\t background-image:none;\n\t\t background: rgba({$r},{$g},{$b},{$a});\n\t\t filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=" . Scaffold::url_path($file) . ", sizingMethod=scale);\n\t\t";
return $properties;
}
/**
* Parse the CSS. This takes an array of files, options and configs
* and parses the CSS, outputing the processed CSS string.
*
* @param array List of files
* @param array Configuration options
* @param string Options
* @param boolean Return the CSS rather than displaying it
* @return string The processed css file as a string
*/
public static function parse($files, $config, $options = array(), $display = false)
{
# Benchmark will do the entire run from start to finish
Scaffold_Benchmark::start('system');
try {
# Setup the cache and other variables/constants
Scaffold::setup($config);
self::$options = $options;
$css = false;
# Time it takes to get the flags
Scaffold_Benchmark::start('system.flags');
# Get the flags from each of the loaded modules.
$flags = self::$flags === false ? array() : self::flags();
# Time it takes to get the flags
Scaffold_Benchmark::stop('system.flags');
# The final, combined CSS file in the cache
$combined = md5(serialize(array($files, $flags))) . '.css';
/**
* Check if we should use the combined cache right now and skip unneeded processing
*/
if (SCAFFOLD_PRODUCTION === true and Scaffold_Cache::exists($combined) and Scaffold_Cache::is_fresh($combined)) {
Scaffold::$output = Scaffold_Cache::open($combined);
}
if (Scaffold::$output === null) {
# We're processing the files
Scaffold_Benchmark::start('system.check_files');
foreach ($files as $file) {
# The time to process a single file
Scaffold_Benchmark::start('system.file.' . basename($file));
# Make sure this file is allowed
if (substr($file, 0, 4) == "http" or substr($file, -4, 4) != ".css") {
Scaffold::error('Scaffold cannot the requested file - ' . $file);
}
/**
* If there are flags, we'll include them in the filename
*/
if (!empty($flags)) {
# Webligo PHP5.1 compat
$cached_file = dirname($file) . DIRECTORY_SEPARATOR . substr(basename($file), 0, strrpos(basename($file), '.')) . '_' . implode('_', $flags) . '.css';
# $cached_file = dirname($file) . DIRECTORY_SEPARATOR . pathinfo($file, PATHINFO_FILENAME) . '_' . implode('_', $flags) . '.css';
} else {
$cached_file = $file;
}
$request = Scaffold::find_file($file, false, true);
/**
* While not in production, we want to to always recache, so we'll fake the time
*/
$modified = SCAFFOLD_PRODUCTION ? Scaffold_Cache::modified($cached_file) : 0;
/**
* If the CSS file has been changed, or the cached version doesn't exist
*/
if (!Scaffold_Cache::exists($cached_file) or $modified < filemtime($request)) {
Scaffold_Cache::write(Scaffold::process($request), $cached_file);
Scaffold_Cache::remove($combined);
}
$css .= Scaffold_Cache::open($cached_file);
# The time it's taken to process this file
Scaffold_Benchmark::stop('system.file.' . basename($file));
}
Scaffold::$output = $css;
/**
* If any of the files have changed we need to recache the combined
*/
if (!Scaffold_Cache::exists($combined)) {
Scaffold_Cache::write(self::$output, $combined);
}
# The time it takes to process the files
Scaffold_Benchmark::stop('system.check_files');
/**
* Hook to modify what is sent to the browser
*/
if (SCAFFOLD_PRODUCTION === false) {
Scaffold::hook('display');
}
}
/**
* Set the HTTP headers for the request. Scaffold will set
* all the headers required to score an A grade on YSlow. This
* means your CSS will be sent as quickly as possible to the browser.
*/
$length = strlen(Scaffold::$output);
$modified = Scaffold_Cache::modified($combined);
$lifetime = SCAFFOLD_PRODUCTION === true ? $config['cache_lifetime'] : 0;
Scaffold::set_headers($modified, $lifetime, $length);
/**
* If the user wants us to render the CSS to the browser, we run this event.
* This will send the headers and output the processed CSS.
*/
if ($display === true) {
Scaffold::render(Scaffold::$output, $config['gzip_compression']);
}
# Benchmark will do the entire run from start to finish
Scaffold_Benchmark::stop('system');
} catch (Exception $e) {
/**
* The message returned by the error
*/
$message = $e->getMessage();
/**
* Load in the error view
*/
if (SCAFFOLD_PRODUCTION === false && $display === true) {
Scaffold::send_headers();
require Scaffold::find_file('scaffold_error.php', 'views');
}
}
# Log the final execution time
#$benchmark = Scaffold_Benchmark::get('system');
#Scaffold_Log::log('Total Execution - ' . $benchmark['time']);
# Save the logs and exit
Scaffold_Event::run('system.shutdown');
return self::$output;
}
