149 lines
4.5 KiB
PHP
149 lines
4.5 KiB
PHP
<?php
|
|
|
|
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
|
|
|
/**
|
|
* Image_Graph - PEAR PHP OO Graph Rendering Utility.
|
|
*
|
|
* PHP versions 4 and 5
|
|
*
|
|
* LICENSE: This library is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or (at your
|
|
* option) any later version. This library is distributed in the hope that it
|
|
* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
|
|
* General Public License for more details. You should have received a copy of
|
|
* the GNU Lesser General Public License along with this library; if not, write
|
|
* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
* 02111-1307 USA
|
|
*
|
|
* @category Images
|
|
* @package Image_Graph
|
|
* @subpackage Fill
|
|
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
|
|
* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
|
|
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
|
|
* @version CVS: $Id: Gradient.php,v 1.15 2005/08/24 20:36:03 nosey Exp $
|
|
* @link http://pear.php.net/package/Image_Graph
|
|
*/
|
|
|
|
/**
|
|
* Include file Image/Graph/Fill/Image.php
|
|
*/
|
|
require_once 'Image/Graph/Fill/Image.php';
|
|
|
|
/**
|
|
* Fill using a gradient color.
|
|
* This creates a scaled fillstyle with colors flowing gradiently between 2
|
|
* specified RGB values. Several directions are supported:
|
|
*
|
|
* 1 Vertically (IMAGE_GRAPH_GRAD_VERTICAL)
|
|
*
|
|
* 2 Horizontally (IMAGE_GRAPH_GRAD_HORIZONTAL)
|
|
*
|
|
* 3 Mirrored vertically (the color grades from a- b-a vertically)
|
|
* (IMAGE_GRAPH_GRAD_VERTICAL_MIRRORED)
|
|
*
|
|
* 4 Mirrored horizontally (the color grades from a-b-a horizontally)
|
|
* IMAGE_GRAPH_GRAD_HORIZONTAL_MIRRORED
|
|
*
|
|
* 5 Diagonally from top-left to right-bottom
|
|
* (IMAGE_GRAPH_GRAD_DIAGONALLY_TL_BR)
|
|
*
|
|
* 6 Diagonally from bottom-left to top-right
|
|
* (IMAGE_GRAPH_GRAD_DIAGONALLY_BL_TR)
|
|
*
|
|
* 7 Radially (concentric circles in the center) (IMAGE_GRAPH_GRAD_RADIAL)
|
|
*
|
|
* @category Images
|
|
* @package Image_Graph
|
|
* @subpackage Fill
|
|
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
|
|
* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
|
|
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
|
|
* @version Release: 0.7.2
|
|
* @link http://pear.php.net/package/Image_Graph
|
|
*/
|
|
class Image_Graph_Fill_Gradient extends Image_Graph_Fill //Image_Graph_Fill_Image
|
|
{
|
|
|
|
/**
|
|
* The direction of the gradient
|
|
* @var int
|
|
* @access private
|
|
*/
|
|
var $_direction;
|
|
|
|
/**
|
|
* The first color to gradient
|
|
* @var mixed
|
|
* @access private
|
|
*/
|
|
var $_startColor;
|
|
|
|
/**
|
|
* The last color to gradient
|
|
* @var mixed
|
|
* @access private
|
|
*/
|
|
var $_endColor;
|
|
|
|
/**
|
|
* Image_Graph_GradientFill [Constructor]
|
|
*
|
|
* @param int $direction The direction of the gradient
|
|
* @param mixed $startColor The value of the starting color
|
|
* @param mixed $endColor The value of the ending color
|
|
*/
|
|
function Image_Graph_Fill_Gradient($direction, $startColor, $endColor)
|
|
{
|
|
parent::Image_Graph_Fill();
|
|
$this->_direction = $direction;
|
|
$this->_startColor = $startColor;
|
|
$this->_endColor = $endColor;
|
|
}
|
|
|
|
/**
|
|
* Return the fillstyle
|
|
*
|
|
* @return int A GD fillstyle
|
|
* @access private
|
|
*/
|
|
function _getFillStyle($ID = false)
|
|
{
|
|
switch ($this->_direction) {
|
|
case IMAGE_GRAPH_GRAD_HORIZONTAL:
|
|
$direction = 'horizontal';
|
|
break;
|
|
case IMAGE_GRAPH_GRAD_VERTICAL:
|
|
$direction = 'vertical';
|
|
break;
|
|
case IMAGE_GRAPH_GRAD_HORIZONTAL_MIRRORED:
|
|
$direction = 'horizontal_mirror';
|
|
break;
|
|
case IMAGE_GRAPH_GRAD_VERTICAL_MIRRORED:
|
|
$direction = 'vertical_mirror';
|
|
break;
|
|
case IMAGE_GRAPH_GRAD_DIAGONALLY_TL_BR:
|
|
$direction = 'diagonal_tl_br';
|
|
break;
|
|
case IMAGE_GRAPH_GRAD_DIAGONALLY_BL_TR:
|
|
$direction = 'diagonal_bl_tr';
|
|
break;
|
|
case IMAGE_GRAPH_GRAD_RADIAL:
|
|
$direction = 'radial';
|
|
break;
|
|
}
|
|
|
|
return array(
|
|
'type' => 'gradient',
|
|
'start' => $this->_startColor,
|
|
'end' => $this->_endColor,
|
|
'direction' => $direction
|
|
);
|
|
}
|
|
|
|
}
|
|
|
|
?>
|