/**
* Tests Oz_Deepzoom_Descriptor->getDimension()
*/
public function testInvalidDimension()
{
try {
$this->_descriptor->getDimension(-1);
} catch (Oz_Deepzoom_Exception $e) {
$this->assertTrue('Invalid pyramid level (dimension)' === $e->getMessage());
return;
}
$this->fail();
return;
}
/**
* Returns the bitmap image at the given level
*
* @param int $level
*
* @return Gr_Image
*/
public function getImage($level)
{
if (0 <= $level and $level < $this->_descriptor->numLevels()) {
list($width, $height) = $this->_descriptor->getDimension($level);
// don't transform to what we already have
if ($this->_descriptor->width == $width and $this->_descriptor->height == $height) {
return $this->_image;
} else {
$image = clone $this->_image;
$image->resize($width, $height);
return $image;
}
} else {
new Oz_Deepzoom_Exception('Invalid pyramid level');
}
}
