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<?php /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: / // {{{ Header /* * This is a driver file contains the Image_Tools_Border class. * * PHP versions 4 and 5 * * LICENSE: * Copyright (c) 2005-2008 Firman Wandayandi <firman@php.net> * * This source file is subject to the BSD License license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://www.opensource.org/licenses/bsd-license.php * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to pear-dev@list.php.net so we can send you a copy immediately. * * @category Images * @package Image_Tools * @author Firman Wandayandi <firman@php.net> * @copyright Copyright (c) 2005-2008 Firman Wandayandi <firman@php.net> * @license http://www.opensource.org/licenses/bsd-license.php * BSD License * @version CVS: $Id: Border.php,v 1.7 2008/05/26 06:13:06 firman Exp $ / // }}} // {{{ Dependencies /* * Image_Tools / require_once 'Image/Tools.php'; /* * Image_Tools_Utils / require_once 'Image/Tools/Utils.php'; // }}} // {{{ Class: Image_Tools_Border /* * This class provide border creation on an image. * * @category Images * @package Image_Tools * @author Firman Wandayandi <firman@php.net> * @copyright Copyright (c) 2005-2006 Firman Wandayandi <firman@php.net> * @license http://www.opensource.org/licenses/bsd-license.php * BSD License * @version Release: 1.0.0RC1 / class Image_Tools_Border extends Image_Tools { // {{{ Properties /* * Border options: * <pre> * image mixed Destination image, a filename or an image string * data or a GD image resource. * style string Border style * params array Parameters * </pre> * * @var array * @access protected / var $options = array( 'image' => null, 'style' => 'rounded', 'params' => array() ); /* * Available options for Image_Tools_Border. * * @var array * @access protected / var $availableOptions = array( 'image' => 'mixed', 'style' => 'string', 'params' => 'array' ); /* * Available methods for Image_Tool_Border (only public methods). * * @var array * @access protected / var $availableMethods = array( 'rounded' => array( 'radius' => 'integer', 'background' => 'mixed', 'antiAlias' => 'integer' ), 'bevel' => array( 'size' => 'integer', 'highlight' => 'mixed', 'shadow' => 'mixed' ), 'line' => array( 'width' => 'integer', 'color' => 'mixed', 'offset' => 'integer', 'background' => 'mixed' ) ); /* * Image_Tools_Border API version. * * @var string * @access protected / var $version = '1.0'; /* * Image width. * * @var int * @access private / var $_iWidth = 0; /* * Image height. * * @var int * @access private / var $_iHeight = 0; // }}} // {{{ preRender() /* * Function which called before render. * * @return bool\|PEAR_Error TRUE on success or PEAR_Error on failure. * @access protected / function preRender() { $res = Image_Tools::createImage($this->options['image']); if (PEAR::isError($res)) { return $res; } $this->resultImage = $res; $this->_iWidth = imagesx($this->resultImage); $this->_iHeight = imagesy($this->resultImage); return true; } // }}} // {{{ _rounded() /* * Make an image be a rounded edge. * * @param int $radius optional Radius size. * @param mixed $background Background color. * @param int $antiAlias Anti-alias factor. * * @return bool\|PEAR_Error TRUE on success or PEAR_Error on failure. * @access private / function _rounded($radius = 3, $background = 'FFFFFF', $antiAlias = 3) { if (!Image_Tools::isGDImageResource($this->resultImage)) { return PEAR::raiseError('Invalid image resource Image_Tools_Mask::$_resultImage'); } $background = Image_Tools_Utils::colorToRGBA($background); $antiAlias = min(3, $antiAlias); $iDot = imagecreate(1, 1); imagecolorallocate($iDot, $background['r'], $background['g'], $background['b']); for ($i = 0 - $radius; $i <= $radius; $i++) { $y = $i < 0 ? $i + $radius - 1 : $this->_iHeight - ($radius - $i); for ($j = 0 - $radius; $j <= $radius; $j++) { $x = $j < 0 ? $j + $radius - 1 : $this->_iWidth - ($radius - $j); if ($i != 0 \|\| $j != 0) { $distance = round(sqrt(($i $i) + ($j * $j))); $opacity = $distance < $radius - $antiAlias ? 0 : max(0, 100 - (($radius - $distance) * 33)); $opacity = $distance > $radius ? 100 : $opacity; imagecopymerge($this->resultImage, $iDot, $x, $y, 0, 0, 1, 1, $opacity); } } } imagedestroy($iDot); return true; } // }}} // {{{ _bevel() /** * Make an image bevel border. * * @param int $size Border size. * @param mixed $highlight Highlight color. * @param mixed $shadow Shadow color. * * @return bool\|PEAR_Error TRUE on success or PEAR_Error on failure. * @access private / function _bevel($size = 8, $highlight = 'FFFFFF', $shadow = '000000') { if (!Image_Tools::isGDImageResource($this->resultImage)) { return PEAR::raiseError('Invalid image resource Image_Tools_Mask::$_resultImage'); } $highlight = Image_Tools_Utils::colorToRGBA($highlight); $shadow = Image_Tools_Utils::colorToRGBA($shadow); // Create an image resource for highlight. $iLight = imagecreate($this->_iWidth, $this->_iHeight); imagecolorallocate($iLight, $highlight['r'], $highlight['g'], $highlight['b']); // Create an image resource for shadow. $iShadow = imagecreate(1, 1); imagecolorallocate($iShadow, $shadow['r'], $shadow['g'], $shadow['b']); for ($j = 0; $j < $size; $j++) { $opacity = 100 - (($j + 1) (100 / $size)); imagecopymerge($this->resultImage, $iLight, $j, $j, 0, 0, 1, $this->_iHeight - (2 * $j), $opacity); imagecopymerge($this->resultImage, $iLight, $j - 1, $j - 1, 0, 0, $this->_iWidth - (2 * $j), 1, $opacity); imagecopymerge($this->resultImage, $iShadow, $this->_iWidth - ($j + 1), $j, 0, 0, 1, $this->_iHeight - (2 * $j), max(0, $opacity - 10)); imagecopymerge($this->resultImage, $iShadow, $j, $this->_iHeight - ($j + 1), 0, 0, $this->_iWidth - (2 * $j), 1, max(0, $opacity - 10)); } // Free highlight and shadow image resources. imagedestroy($iLight); imagedestroy($iShadow); return true; } // }}} // {{{ _line() /** * Draw a line around an image * * Draw a line around an image. If $offset is 0, the line is just around the image. * If $offset is positive, the line is outside the image, and the gad is filled with background color. * If $offset is -width / 2, the line is centered on the border of the image. * If $offset is -$width, the line in just inside the image. * If $offset is negative, the line is inside the image. * * @param int $width Line width * @param mixed $color Line color * @param int $offset Distance between line and image. * * @return bool\|PEAR_Error TRUE on success or PEAR_Error on failure. * @access private * @author Charles Brunet <charles.fmj@gmail.com> / function _line($width = 2, $color = '000000', $offset = 0, $background = 'FFFFFF') { // Agrandir l'image si n�cessaire $mag = $width + $offset; if ($mag > 0) { $w= $this->_iWidth + (2 $mag); $h= $this->_iHeight + (2 * $mag); // Create the target image if ( function_exists('imagecreatetruecolor') ) { $target = imagecreatetruecolor($w, $h); } else { $target = imagecreate($w, $h); } if ( ! Image_Tools::isGDImageResource($target) ) { return PEAR::raiseError('Cannot initialize new GD image stream'); } $background = Image_Tools_Utils::colorToRGBA($background); $background = imagecolorallocate($target, $background['r'], $background['g'], $background['b']); imagefilledrectangle($target, 0, 0, $w-1, $h-1, $background); imagecopy($target, $this->resultImage, $mag, $mag, 0, 0, $this->_iWidth, $this->_iHeight); $this->_iWidth = $w; $this->_iHeight = $h; imagedestroy($this->resultImage); $this->resultImage = $target; } if (!Image_Tools::isGDImageResource($this->resultImage)) { return PEAR::raiseError('Invalid image resource Image_Tools_Mask::$_resultImage'); } $color = Image_Tools_Utils::colorToRGBA($color); $color = imagecolorallocate($this->resultImage, $color['r'], $color['g'], $color['b']); $a = ($mag < 0)?0-$mag:0; for ($i=$a; $i<$a+$width; ++$i) { imagerectangle($this->resultImage, $i, $i, $this->_iWidth-$i-1, $this->_iHeight-$i-1, $color); } return true; } // }}} // {{{ render() /** * This method is useless, use directly call for specific border style * method. * * @return TRUE\|PEAR_Error * @access protected / function render() { $callback = array($this, "_{$this->options['style']}"); if (!is_callable($callback)) { return PEAR::raiseError('Invalid border style or not supported'); } return call_user_func_array($callback, $this->options['params']); } // }}} } // }}} / * Local variables: * mode: php * tab-width: 4 * c-basic-offset: 4 * c-hanging-comment-ender-p: nil * End: */ ?>

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