/**
* Add border to an image
*
* @param resource $image Image GD resource
* @param array $params Some
* @return resource
* @throws \JBZoo\Utils\Exception
*/
public static function border($image, array $params = array())
{
$params = array_merge(array('color' => '#333', 'size' => 1), $params);
$size = Helper::range($params['size'], 1, 1000);
$rgba = Helper::normalizeColor($params['color']);
$width = imagesx($image);
$height = imagesy($image);
$x1 = 0;
$y1 = 0;
$x2 = $width - 1;
$y2 = $height - 1;
$color = imagecolorallocatealpha($image, $rgba[0], $rgba[1], $rgba[2], $rgba[3]);
for ($i = 0; $i < $size; $i++) {
imagerectangle($image, $x1++, $y1++, $x2--, $y2--, $color);
}
}
/**
* Determine text color
*
* @param mixed $image GD resource
* @param string|array $colors
* @return array
* @throws Exception
*/
protected static function _getColor($image, $colors)
{
$colors = (array) $colors;
$result = array();
foreach ($colors as $color) {
$rgba = Helper::normalizeColor($color);
$result[] = imagecolorallocatealpha($image, $rgba[0], $rgba[1], $rgba[2], $rgba[3]);
}
return $result;
}
/**
* Fill image with color
*
* @param mixed $image GD resource
* @param string $color Hex color string, array(red, green, blue) or array(red, green, blue, alpha).
* Where red, green, blue - integers 0-255, alpha - integer 0-127
* @return $this
* @throws Exception
*/
public static function fill($image, $color = '#000000')
{
$width = imagesx($image);
$height = imagesy($image);
$rgba = Helper::normalizeColor($color);
$fillColor = imagecolorallocatealpha($image, $rgba[0], $rgba[1], $rgba[2], $rgba[3]);
Helper::addAlpha($image, false);
imagefilledrectangle($image, 0, 0, $width, $height, $fillColor);
}
/**
* Add filter to current image
*
* @param string|callable $filter
* @return $this
*
* @throws Exception
*/
public function addFilter($filter)
{
$args = func_get_args();
$args[0] = $this->_image;
$newImage = null;
if (is_string($filter)) {
$filterClass = __NAMESPACE__ . '\\Filter';
if (method_exists($filterClass, $filter)) {
$newImage = call_user_func_array(array($filterClass, $filter), $args);
} else {
throw new Exception('Undefined Image Filter: ' . $filter);
}
} elseif (is_callable($filter)) {
$newImage = call_user_func_array($filter, $args);
}
if (Helper::isGdRes($newImage)) {
$this->_replaceImage($newImage);
}
return $this;
}
