/**
* Displays image without saving and lose changes.
* This method adds the Content-type HTTP header
*
* @access public
* @param string $type Output format, default is the current used format
* @param int $quality Image quality, default is 75
* @param int $expires Set Cache-Control and Expires of HTTP header
* @return mixed True on success or a Jaws_Error object on error
*/
function display($type = '', $quality = null, $expires = 0)
{
if ($this->_readonly) {
$result = parent::display($type, $quality, $expires);
return $result;
}
$options = is_array($quality) ? $quality : array();
if (is_numeric($quality)) {
$options['quality'] = $quality;
}
$quality = $this->_getOption('quality', $options, 75);
$type = $type == 'jpg' ? 'jpeg' : $type;
$type = strtolower($type == '' ? $this->_itype : $type);
$type = empty($type) ? 'png' : $type;
if (!$this->_typeSupported($type, 'w')) {
return Jaws_Error::raiseError('Image type not supported for output.', __FUNCTION__);
}
if (!empty($expires)) {
header("Cache-Control: max-age=" . $expires);
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');
}
if (function_exists('imagealphablending')) {
imagealphablending($this->_hImage, false);
imagesavealpha($this->_hImage, true);
}
$funcName = 'image' . $type;
header('Content-type: ' . image_type_to_mime_type($this->get_image_extension_to_type($type)));
ob_start();
switch ($type) {
case 'jpeg':
$result = $funcName($this->_hImage, null, $quality);
break;
default:
$result = $funcName($this->_hImage);
}
$content = ob_get_contents();
ob_end_clean();
$this->free();
if (!$result) {
return Jaws_Error::raiseError('Couldn\'t display image', __FUNCTION__);
}
return $content;
}
/**
* Displays image without saving and lose changes.
* This method adds the Content-type HTTP header
*
* @access public
* @param string $type Output format, default is the current used format
* @param int $quality Image quality, default is 75
* @param int $expires Set Cache-Control and Expires of HTTP header
* @return mixed True on success or a Jaws_Error object on error
*/
function display($type = '', $quality = null, $expires = 0)
{
if ($this->_readonly) {
$result = parent::display($type, $quality, $expires);
return $result;
}
$options = is_array($quality) ? $quality : array();
if (is_numeric($quality)) {
$options['quality'] = $quality;
}
$quality = $this->_getOption('quality', $options, 75);
try {
$this->_hImage->setImageCompression($quality);
} catch (ImagickException $error) {
return Jaws_Error::raiseError('Could not set image compression.', __FUNCTION__);
}
$type = $type == 'jpg' ? 'jpeg' : $type;
$type = strtolower($type == '' ? $this->_itype : $type);
$type = empty($type) ? 'png' : $type;
try {
$this->_hImage->setImageFormat($type);
} catch (ImagickException $error) {
return Jaws_Error::raiseError('Could not save image to file (conversion failed).', __FUNCTION__);
}
try {
$result = $this->_hImage->getImageBlob();
} catch (ImagickException $error) {
return Jaws_Error::raiseError('Could not display image.', __FUNCTION__);
}
if (!empty($expires)) {
header("Cache-Control: max-age=" . $expires);
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');
}
header('Content-type: ' . image_type_to_mime_type($this->get_image_extension_to_type($type)));
$this->free();
return $result;
}