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;
}
/**
* 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);
}
