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<?php
/**
* All functions relevant to creating and displaying color ranges
*
* @version 0.3
* @author Matt McClanahan <cardinal@dodds.net>
* @package Imlib
* @access public
*/
class ImlibColorRange extends ImlibCliprect
{
/**
* Resource id# of the current color range
*
* @access private
*/
var $cr;
/**
* Resource id# of the image to draw on
*
* @access private
*/
var $im;
/**
* ImlibColorRange constructor
*
* @access public
*/
function ImlibColorRange()
{
$this->cr = 0;
$this->im = 0;
}
/**
* Add a color to the color range at distance $x.
*
* A distance of 0 will center it between the previous color and the end.
* $x is ignored for the first color.
*
* @param int Distance from the previous color
* @param int Red
* @param int Blue
* @param int Green
* @param int Alpha
* @access public
*/
function add_color($x,$r,$g,$b,$a)
{
if (!is_resource($this->cr))
return false;
imlib_add_color_to_color_range($this->cr,$x,$r,$g,$b,$a);
}
/**
* Add a color to the color range at distance $x.
*
* A distance of 0 will center it between the previous color and the end.
* $x is ignored for the first color.
*
* @param int Distance from the previous color
* @param array Color array (r,g,b,a)
* @access public
*/
function add_color_array($x,$arr)
{
list($r,$g,$b,$a) = $arr;
$this->add_color($x,$r,$g,$b,$a);
}
/**
* Create a new color range
*
* @return int Resource id# of the new color range
* @access public
*/
function create()
{
if (is_resource($this->cr))
return false;
return $this->cr = imlib_create_color_range();
}
/**
* Free the current color range
*
* @access public
*/
function free()
{
if (!is_resource($this->cr))
return false;
imlib_free_color_range($this->cr);
unset($this->cr);
}
/**
* Fill the current image with a rectangle using the current color range
*
* The color range will be filled in the specified box at angle $angle
*
* @param int Upper-left X coordinate of the box
* @param int Upper-left Y coordinate of the box
* @param int Width of the box
* @param int Height of the box
* @param int Angle to rotate the color range (degrees)
* @access public
*/
function fill_rectangle($x,$y,$w,$h,$angle)
{
if (!is_resource($this->im) || !is_resource($this->cr))
return false;
if ($this->cliprect_inuse)
return imlib_image_fill_color_range_rectangle($this->im,$this->cr,
$x,$y,$w,$h,$angle,$this->get_cliprect_array());
else
return imlib_image_fill_color_range_rectangle($this->im,$this->cr,
$x,$y,$w,$h,$angle);
}
/**
* Set the image to draw the color range on
*
* @param int Resource id# of the image
* @access public
*/
function set_image($im)
{
if (is_resource($im))
$this->im = $im;
}
};
?>
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