/**
* Outputs the image to browser
*
* Sets headers Content-length and Content-type, and echoes the image in the specified format.
* All other headers (such as Content-disposition) must be added manually.
*
* @param string $format Image format
*/
function output($format)
{
$args = func_get_args();
$data = call_user_func_array(array($this, 'asString'), $args);
$this->writeHeader('Content-length', strlen($data));
$this->writeHeader('Content-type', GDImage_MapperFactory::mimeType($format));
echo $data;
}
/**
* Create and load an image from a file or URL. You can override the file
* format by specifying the second parameter.
*
* @param string $uri File or url
* @param string $format *DEPRECATED* Format hint, usually not needed
* @return GDImage_Image GDImage_PaletteImage or GDImage_TrueColorImage instance
*/
static function loadFromFile($uri, $format = null)
{
$data = file_get_contents($uri);
$handle = @imagecreatefromstring($data);
if (!self::isValidImageHandle($handle)) {
$mapper = GDImage_MapperFactory::selectMapper($uri, $format);
$handle = $mapper->load($uri);
}
if (!self::isValidImageHandle($handle)) {
JError::raiseError(500, JText::_('JLIB_GDIMAGE_ERROR_INVALID_SOURCE') . ' ' . $uri);
return false;
}
return self::loadFromHandle($handle);
}