/**
Add object to hold shading properties
\param object id.
\param action
\param options
\return action 'new' - dictionary name
'out' - pdf output
*/
function o_shading($id, $action, $options = '')
{
if ($action != 'new') {
$o =& $this->objects[$id];
}
switch ($action) {
case 'new':
$this->objects[$id] = array('t' => 'shading', 'info' => array('type' => '2', 'ColorSpace' => '/DeviceCMYK'));
if (!isset($options['orientation'])) {
$options['orientation'] = 'vertical';
}
if ($options['orientation'] == 'horizontal') {
$angle = 0;
} else {
if ($options['orientation'] == 'vertical') {
$angle = deg2rad(90);
} else {
$angle = $options['orientation'];
}
}
$this->objects[$id]['info']['Coords'] = '[ ' . sprintf('%.3F', $options['size']['x1']) . ' ' . sprintf('%.3F', $options['size']['y1'] + $options['size']['height']) . ' ' . sprintf('%.3F', $options['size']['x1'] + $options['size']['width'] * cos($angle)) . ' ' . sprintf('%.3F', $options['size']['y1'] + $options['size']['height'] * (1 - sin($angle))) . ']';
//$this->objects[$id]['info']['Coords'] = '[0.0 0.0 50.0 50.0]';
if (is_array($options['color0'])) {
if (count($options['color0']) == 3) {
$options['color0'] = eZMath::rgbToCMYK($options['color0']);
}
$color0 = array('c' => sprintf('%.3F', $options['color0']['c']), 'm' => sprintf('%.3F', $options['color0']['m']), 'y' => sprintf('%.3F', $options['color0']['y']), 'k' => sprintf('%.3F', $options['color0']['k']));
} else {
$color0 = eZMath::rgbToCMYK2(0, 0, 0);
}
if (is_array($options['color1'])) {
if (count($options['color1']) == 3) {
$options['color1'] = eZMath::rgbToCMYK($options['color1']);
}
$color1 = array('c' => sprintf('%.3F', $options['color1']['c']), 'm' => sprintf('%.3F', $options['color1']['m']), 'y' => sprintf('%.3F', $options['color1']['y']), 'k' => sprintf('%.3F', $options['color1']['k']));
} else {
$color1 = eZMath::rgbToCMYK2(1, 1, 1);
}
$this->numObj++;
$this->objects[$id]['info']['Function'] = $this->numObj;
$this->o_function($this->numObj, 'new', array('type' => '2', 'Domain' => '[0.0 1.0]', 'C0' => '[' . $color0['c'] . ' ' . $color0['m'] . ' ' . $color0['y'] . ' ' . $color0['k'] . ']', 'C1' => '[' . $color1['c'] . ' ' . $color1['m'] . ' ' . $color1['y'] . ' ' . $color1['k'] . ']', 'N' => '1.0'));
$this->objects[$id]['info']['Extend'] = '[true true]';
// also tell the pages node about the new shading
$this->o_pages($this->currentNode, 'shading', array('label' => 'Sh' . $id, 'objNum' => $id));
return 'Sh' . $id;
break;
case 'out':
$res = "\n" . $id . " 0 obj\n<< ";
$res .= "/ShadingType " . $o['info']['type'] . "\n";
$res .= "/ColorSpace " . $o['info']['ColorSpace'] . "\n";
$res .= "/Coords " . $o['info']['Coords'] . "\n";
$res .= "/Function " . $o['info']['Function'] . " 0 R\n";
$res .= "/Extend " . $o['info']['Extend'] . "\n";
$res .= ">>\nendobject";
return $res;
break;
}
}
static function rgbToCMYK2($r, $g, $b)
{
return eZMath::rgbToCMYK(array('r' => $r, 'g' => $g, 'b' => $b));
}
