public function testRectangle() {
// Normal scaling with preserved aspect ratio.
list($width, $height) = Resize::rectangle(560, 250, 480, 0);
$this->assertEquals(215, $height);
list($width, $height) = Resize::rectangle(256, 128, 0, 500);
$this->assertEquals(1000, $width);
// Enforce target dimensions (skewing the rectangle).
$this->assertEquals(array(500, 400), Resize::rectangle(800, 600, 500, 400));
// Test IF_*.
list($width, $height) = Resize::rectangle(800, 600, 480, 0, Resize::IF_SMALLER);
$this->assertEquals(600, $height);
list($width, $height) = Resize::rectangle(480, 320, 800, 0, Resize::IF_BIGGER);
$this->assertEquals(320, $height);
}
/**
* Resize an embed tag by matching all width/height
* attributes in the given $markup, using the first pair
* to calculate new width/height values and then replacing
* the old attributes. This method is quite dumb and will
* not handle unexpected or complicated markup well.
*
* @param string $markup
* @param integer $width
* @param integer $height
* @param integer $when
*
* @return string
*/
public static function using_attributes($markup, $width, $height,
$when = Resize::ALWAYS) {
// These two variable names must match the two keys in the
// $search array below.
$attrWidth = 0;
$attrHeight = 0;
// Regexes to match width and height attributes in markup.
$search = array(
'attrWidth' => '/width(\s*)=\1"?\d+"?/i',
'attrHeight' => '/height(\s*)=\1"?\d+"?/i'
);
$matches = array();
// Find all width and height attributes in the markup given.
foreach ($search as $key => $pattern) {
if (preg_match($pattern, $markup, $matches))
if (preg_match('/\d+/i', $matches[0], $matches))
$$key = $matches[0];
}
list($width, $height) = Resize::rectangle($attrWidth, $attrHeight, $width, $height, $when);
$replace = array(
"width=\"{$width}\"",
"height=\"{$height}\""
);
$markup = strip_tags($markup, '<iframe><object><param><embed><video>');
$markup = preg_replace($search, $replace, $markup);
return $markup;
}
