/**
* Creates a color that can be accessed in this object.
*
* When a color is set, the integer resource of it is returned.
*
* @param string $name The name of the color.
* @param integer $alpha Alpha transparency (0 - 127).
*
* @return integer The resource of the color that can be passed to GD.
*/
private function _allocateColor($name, $alpha = 0)
{
if (empty($this->_colors[$name])) {
if ($name == 'none') {
$this->_colors[$name] = $this->call('imageColorAllocateAlpha', array($this->_im, 0, 0, 0, 127));
} else {
list($r, $g, $b) = Horde_Image::getRGB($name);
$this->_colors[$name] = $this->call('imageColorAllocateAlpha', array($this->_im, $r, $g, $b, $alpha));
}
}
return $this->_colors[$name];
}
/**
* Draws a rectangle.
*
* @param integer $x The left x-coordinate of the rectangle.
* @param integer $y The top y-coordinate of the rectangle.
* @param integer $width The width of the rectangle.
* @param integer $height The height of the rectangle.
* @param string $color The line color of the rectangle.
* @param string $fill The color to fill the rectangle.
*/
public function rectangle($x, $y, $width, $height, $color = 'black', $fill = 'none')
{
list($r, $g, $b) = Horde_Image::getRGB($color);
if ($fill != 'none') {
list($fR, $fG, $fB) = Horde_Image::getRGB($fill);
}
$x2 = $x + $width;
$y2 = $y + $height;
for ($h = $y; $h <= $y2; $h++) {
for ($w = $x; $w <= $x2; $w++) {
// See if we're on an edge.
if ($w == $x || $h == $y || $w == $x2 || $h == $y2) {
$this->_img[$h][$w] = array('r' => $r, 'g' => $g, 'b' => $b);
} elseif ($fill != 'none') {
$this->_img[$h][$w] = array('r' => $fR, 'g' => $fG, 'b' => $fB);
}
}
}
}
/**
* Creates a color that can be accessed in this object.
*
* When a color is set, the rgba values are returned in an array.
*
* @param string $name The name of the color.
*
* @return array The red, green, blue, alpha values of the color.
*/
public function allocateColor($name)
{
list($r, $g, $b) = Horde_Image::getRGB($name);
return array('red' => $r, 'green' => $g, 'blue' => $b, 'alpha' => 255);
}
