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Diffstat (limited to 'boca-1.5.1/src/libchart/classes/Color.php')
| -rw-r--r-- | boca-1.5.1/src/libchart/classes/Color.php | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/boca-1.5.1/src/libchart/classes/Color.php b/boca-1.5.1/src/libchart/classes/Color.php new file mode 100644 index 0000000..178435b --- /dev/null +++ b/boca-1.5.1/src/libchart/classes/Color.php @@ -0,0 +1,74 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /** + * Color + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + */ + + class Color + { + /** + * Creates a new color + * + * @access public + * @param integer red [0,255] + * @param integer green [0,255] + * @param integer blue [0,255] + * @param integer alpha [0,255] + */ + + function Color($red, $green, $blue, $alpha = 0) + { + $this->red = (int)$red; + $this->green = (int)$green; + $this->blue = (int)$blue; + $this->alpha = (int)round($alpha * 127.0 / 255); + + $this->gdColor = null; + } + + /** + * Get GD color + * + * @access public + * @param $img GD image resource + */ + + function getColor($img) + { + // Checks if color has already been allocated + + if(!$this->gdColor) + { + if($this->alpha == 0 || !function_exists('imagecolorallocatealpha')) + $this->gdColor = imagecolorallocate($img, $this->red, $this->green, $this->blue); + else + $this->gdColor = imagecolorallocatealpha($img, $this->red, $this->green, $this->blue, $this->alpha); + } + + // Returns GD color + + return $this->gdColor; + } + } +?> |