/**
* Compiles the CSS using the engine and caches the result
* @access public
* @param $source Scaffold_Source
* @return array
*/
public function compile(Scaffold_Source $source)
{
$id = $source->id();
$modified = $source->last_modified();
$expired = $this->cache->expired($id, $modified);
if ($this->production === false or $expired === true) {
$this->cache->set($id, $this->parse($source));
}
$result = array();
$result['string'] = $this->cache->get($id);
$result['last_modified'] = $this->cache->modified($id);
return $result;
}
public static function create_gradient($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 $properties;
}
/**
* Sets the initial variables, checks if we need to process the css
* and then sends whichever file to the browser.
*
* @return void
*/
public static function setup($config)
{
/**
* Choose whether to show or hide errors
*/
if (SCAFFOLD_PRODUCTION === false) {
ini_set('display_errors', true);
error_reporting(E_ALL & ~E_STRICT);
} else {
ini_set('display_errors', false);
error_reporting(0);
}
/**
* Define contstants for system paths for easier access.
*/
if (!defined('SCAFFOLD_SYSPATH') && !defined('SCAFFOLD_DOCROOT')) {
define('SCAFFOLD_SYSPATH', self::fix_path($config['system']));
define('SCAFFOLD_DOCROOT', $config['document_root']);
define('SCAFFOLD_URLPATH', str_replace(SCAFFOLD_DOCROOT, '', SCAFFOLD_SYSPATH));
}
/**
* Add include paths for finding files
*/
Scaffold::add_include_path(SCAFFOLD_SYSPATH, SCAFFOLD_DOCROOT);
/**
* Tell the cache where to save files and for how long to keep them for
*/
Scaffold_Cache::setup(Scaffold::fix_path($config['cache']), $config['cache_lifetime']);
/**
* The level at which logged messages will halt processing and be thrown as errors
*/
self::$error_threshold = $config['error_threshold'];
/**
* Disabling flags allows for quicker processing
*/
if ($config['disable_flags'] === true) {
self::$flags = false;
}
/**
* Tell the log where to save it's files. Set it to automatically save the log on exit
*/
if ($config['enable_log'] === true) {
// START - Modified by Webligo Developments
if ($config['log_path']) {
Scaffold_Log::log_directory($config['log_path']);
} else {
Scaffold_Log::log_directory(SCAFFOLD_SYSPATH . 'logs');
}
// END - Modified by Webligo Developments
//Scaffold_Log::log_directory(SCAFFOLD_SYSPATH.'logs');
Scaffold_Event::add('system.shutdown', array('Scaffold_Log', 'save'));
}
/**
* Load each of the modules
*/
foreach (Scaffold::list_files(SCAFFOLD_SYSPATH . 'modules') as $module) {
$name = basename($module);
$module_config = SCAFFOLD_SYSPATH . 'config/' . $name . '.php';
if (file_exists($module_config)) {
unset($config);
include $module_config;
self::$config[$name] = $config;
}
self::add_include_path($module);
if ($controller = Scaffold::find_file($name . '.php', false, true)) {
require_once $controller;
self::$modules[$name] = new $name();
}
}
/**
* Module Initialization Hook
* This hook allows modules to load libraries and create events
* before any processing is done at all.
*/
self::hook('initialize');
/**
* Create the shutdown event
*/
Scaffold_Event::add('system.shutdown', array('Scaffold', 'shutdown'));
}
/**
* Saves the contents of the source object
* @access public
* @param $source Scaffold_Source
* @return void
*/
public function save(Scaffold_Source $source)
{
$this->cache->set($source->id, $source->contents, $source->last_modified);
}
/**
* Generates the background grid.png
*
* @author Anthony Short
* @param $cl Column width
* @param $bl Baseline
* @param $gw Gutter Width
* @return null
*/
private static function create_grid_image($cw, $bl, $lgw, $rgw)
{
# Path to the image
$file = "{$lgw}_{$cw}_{$rgw}_{$bl}_grid.png";
if (($cache = Scaffold_Cache::find('Layout/' . $file)) === false) {
Scaffold_Cache::create('Layout');
$image = ImageCreate($cw + $lgw + $rgw, $bl);
$colorWhite = ImageColorAllocate($image, 255, 255, 255);
$colorGrey = ImageColorAllocate($image, 200, 200, 200);
$colorBlue = ImageColorAllocate($image, 240, 240, 255);
# Draw left gutter
Imagefilledrectangle($image, 0, 0, $lgw - 1, $bl, $colorWhite);
# Draw column
Imagefilledrectangle($image, $lgw, 0, $cw + $lgw - 1, $bl, $colorBlue);
# Draw right gutter
Imagefilledrectangle($image, $lgw + $cw + 1, 0, $lgw + $cw + $rgw, $bl, $colorWhite);
# Draw baseline
imageline($image, 0, $bl - 1, $lgw + $cw + $rgw, $bl - 1, $colorGrey);
$cache = Scaffold_Cache::find('Layout') . '/' . $file;
ImagePNG($image, $cache);
# Kill it
ImageDestroy($image);
}
return Scaffold::url_path($cache);
}
/**
* Sets the lifetime of the cache
*
* @param $time
* @return void
*/
public function lifetime($time)
{
self::$lifetime = $time;
}