/**
* Obtains the node's very own opacity value, as specified in its styles,
* taking care of 'inherit' and defaulting to 1.
*
* @param SVGNode $node The node to get the opacity value of.
*
* @return float The node's own opacity value.
*/
private static function getNodeOpacity(SVGNode $node)
{
$opacity = $node->getStyle('opacity');
if (is_numeric($opacity)) {
return floatval($opacity);
} elseif ($opacity === 'inherit') {
$parent = $node->getParent();
if (isset($parent)) {
return self::getNodeOpacity($parent);
}
}
return 1;
}
/**
* @param string|null $cx The center's x coordinate.
* @param string|null $cy The center's y coordinate.
* @param string|null $r The radius.
*/
public function __construct($cx = null, $cy = null, $r = null)
{
parent::__construct();
$this->setAttributeOptional('cx', $cx);
$this->setAttributeOptional('cy', $cy);
$this->setAttributeOptional('r', $r);
}
/**
* @param string|null $x1 The first point's x coordinate.
* @param string|null $y1 The first point's y coordinate.
* @param string|null $x2 The second point's x coordinate.
* @param string|null $y2 The second point's y coordinate.
*/
public function __construct($x1 = null, $y1 = null, $x2 = null, $y2 = null)
{
parent::__construct();
$this->setAttributeOptional('x1', $x1);
$this->setAttributeOptional('y1', $y1);
$this->setAttributeOptional('x2', $x2);
$this->setAttributeOptional('y2', $y2);
}
/**
* @param string|null $x The x coordinate of the upper left corner.
* @param string|null $y The y coordinate of the upper left corner.
* @param string|null $width The width.
* @param string|null $height The height.
*/
public function __construct($x = null, $y = null, $width = null, $height = null)
{
parent::__construct();
$this->setAttributeOptional('x', $x);
$this->setAttributeOptional('y', $y);
$this->setAttributeOptional('width', $width);
$this->setAttributeOptional('height', $height);
}
/**
* Converts the given node into its XML representation and appends that to
* this writer's output string.
*
* The generated string contains the attributes defined via
* SVGNode::getSerializableAttributes() and the styles defined via
* SVGNode::getSerializableStyles().
* Container nodes (<g></g>) and self-closing tags (<rect />) are
* distinguished correctly.
*
* @param SVGNode $node The node to write.
*
* @return void
*/
public function writeNode(SVGNode $node)
{
$this->outString .= '<' . $node->getName();
$this->appendAttributes($node->getSerializableAttributes());
$this->appendStyles($node->getSerializableStyles());
if (!$node instanceof SVGNodeContainer) {
$this->outString .= ' />';
return;
}
$this->outString .= '>';
for ($i = 0, $n = $node->countChildren(); $i < $n; ++$i) {
$this->writeNode($node->getChild($i));
}
$this->outString .= '</' . $node->getName() . '>';
}
public function __construct()
{
parent::__construct();
$this->children = array();
}
public function getSerializableAttributes()
{
$attrs = parent::getSerializableAttributes();
$points = '';
for ($i = 0, $n = count($this->points); $i < $n; ++$i) {
$point = $this->points[$i];
if ($i > 0) {
$points .= ' ';
}
$points .= $point[0] . ',' . $point[1];
}
$attrs['points'] = $points;
return $attrs;
}
/**
* Parses the 'style' attribute (if it exists) and applies all styles to the
* given node.
*
* This method does NOT handle styles expressed as attributes (stroke="").
* @see SVGReader::applyAttributes() For styles expressed as attributes.
*
* @param SVGNode $node The node to apply the styles to.
* @param \SimpleXMLElement $xml The attribute source.
*
* @return void
*/
private function applyStyles(SVGNode $node, \SimpleXMLElement $xml)
{
if (!isset($xml['style'])) {
return;
}
$styles = $this->parseStyles($xml['style']);
foreach ($styles as $key => $value) {
$node->setStyle($key, $value);
}
}
/**
* @param string|null $d The path description.
*/
public function __construct($d = null)
{
parent::__construct();
$this->setAttributeOptional('d', $d);
}
