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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_Marquee 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) 2005-2006 Firman Wandayandi <firman@php.net> * @license http://www.opensource.org/licenses/bsd-license.php * BSD License * @version CVS: $Id: Marquee.php,v 1.4 2008/05/26 06:30:00 firman Exp $ / // }}} // {{{ Dependencies /* * Load Image_Tools as the base class. / require_once 'Image/Tools.php'; // }}} // {{{ Constants /* * Image_Tools_Marquee rectangle marquee. * * @name IMAGE_TOOLS_MARQUEE_TYPE_RECTANGLE * @access public / define('IMAGE_TOOLS_MARQUEE_TYPE_RECTANGLE', 'marquee_rectangle'); /* * Image_Tools_Marquee single column marquee. * * @name IMAGE_TOOLS_MARQUEE_TYPE_SINGLECOL * @access public / define('IMAGE_TOOLS_MARQUEE_TYPE_SINGLECOL', 'marquee_singlecol'); /* * Image_Tools_Marquee single row marquee. * * @name IMAGE_TOOLS_MARQUEE_TYPE_SINGLEROW * @access public / define('IMAGE_TOOLS_MARQUEE_TYPE_SINGLEROW', 'marquee_singlerow'); /* * Image_Tools_Marquee polygon marquee. * Notes: this constant is useless at this time. * * @name IMAGE_TOOLS_MARQUEE_TYPE_POLYGON * @access public / define('IMAGE_TOOLS_MARQUEE_TYPE_POLYGON', 'marquee_polygon'); // }}} // {{{ Class: Image_Tools_Marquee /* * This class provide marquee extraction tool for manipulating 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_Marquee extends Image_Tools { // {{{ Properties /* * Marquee options: * <pre> * sample mixed Sample image, a GD image resource or string filename. * x int X position, this sets X position where marquee will be * placed. * y int Y position, this sets Y position where marquee will be * placed. * </pre> * * @var array * @access protected / var $options = array( 'image' => null, // Destination image. 'sample' => null, // Sample image. 'x' => 0, // X position. 'y' => 0 // Y position. ); /* * Available options for Image_Tools_Marquee. * * @var array * @access protected / var $availableOptions = array( 'image' => 'mixed', 'sample' => 'mixed', 'x' => 'int', 'y' => 'int' ); /* * Available methods for Image_Tool_Marquee (only public methods). * * @var array * @access protected / var $availableMethods = array( 'setRectangleMarquee' => array( 'topLeftX' => 'int', 'topLeftY' => 'int', 'bottomRightX' => 'int', 'bottomRightY' => 'int' ), 'setSingleColMarquee' => array( 'x' => 'int' ), 'setSingleRowMarquee' => array( 'y' => 'int' ) ); /* * Image_Tools_Marquee API version. * * @var string * @access protected / var $version = '1.0'; /* * Marquee information. * * @var array * @access private / var $_marquee = array(); /* * Sample image. * * @var resource * @access private / var $_sample = null; // }}} // {{{ preRender() /* * Function which called before render. * * @return bool\|PEAR_Error TRUE on success or PEAR_Error on failure. * @access protected * @see Image_Tools::createImage() / function preRender() { $res = Image_Tools::createImage($this->options['sample']); if (PEAR::isError($res)) { return $res; } $this->_sample = $res; $res = Image_Tools::createImage($this->options['image']); if (PEAR::isError($res)) { return $res; } $this->resultImage = $res; return true; } // }}} // {{{ setRectangleMarquee() /* * Set marquee using rectangle. * * @param int $topLeftX Top left x coordinate. * @param int $topLeftY Top left y coordinate. * @param int $bottomRightX Bottom right x coordinate. * @param int $bottomRightY Bottom right y coordinate. * * @return bool Always TRUE. * @access public * @see _setMarquee() / function setRectangleMarquee($topLeftX, $topLeftY, $bottomRightX, $bottomRightY) { if ($topLeftX > $bottomRightX) { $tmp = $topLeftX; $topLeftX = $bottomRightX; $bottomRightX = $tmp; } if ($topLeftY > $bottomRightY) { $tmp = $bottomRightY; $topLeftY = $bottomRightY; $bottomRightY = $tmp; } $points = array($topLeftX, $topLeftY, $bottomRightX, $bottomRightY); $this->_setMarquee(IMAGE_TOOLS_MARQUEE_TYPE_RECTANGLE, $points); return true; } // }}} // {{{ setSingleColumnMarquee() /* * Set marquee using single column marquee. * * @param int $x X coordinate. * * @return bool Always TRUE. * @access public * @see _setMarquee() / function setSingleColumnMarquee($x) { $this->_setMarquee(IMAGE_EXTRACT_MARQUEE_TYPE_SINGLECOL, $x); return true; } // }}} // {{{ setSingleRowMarquee() /* * Set marquee using single row marquee. * * @param int $y Y coordinate. * * @return bool Always TRUE. * @access public * @see Image_Tools_Marquee::_setMarquee() / function setSingleRowMarquee($y) { $this->_setMarquee(IMAGE_EXTRACT_MARQUEE_TYPE_SINGLEROW, $y); return true; } // }}} // {{{ render() /* * Draw extraction result to resource. * * @return bool\|PEAR_Error TRUE on success or PEAR_Error on failure. * @access public * @see Image_Tools_Marquee::_extractRectangle(), * Image_Tools_Marquee::_extractSingleCol(), * Image_Tools_Marquee::_extractSingleRow() / function render() { if (!Image_Tools::isGDImageResource($this->resultImage)) { return PEAR::raiseError('Invalid image resource Image_Tools_Mask::$_resultImage'); } $x = $this->options['x']; $y = $this->options['y']; switch ($this->_marquee['type']) { case IMAGE_TOOLS_MARQUEE_TYPE_RECTANGLE: $this->_extractRectangle($this->resultImage, $x, $y); break; case IMAGE_TOOLS_MARQUEE_TYPE_SINGLECOL: $this->_extractSingleColumn($this->resultImage, $x, $y); break; case IMAGE_TOOLS_MARQUEE_TYPE_SINGLEROW: $this->_extractSingleRow($this->resultImage, $x, $y); break; } return true; } // }}} // {{{ _setMarquee() /* * Set marquee informations. * * @param string $type Marquee type. Use marquee type defined constants. * @param mixed $points Marquee coordinate points. * * @access private / function _setMarquee($type, $points) { $this->_marquee = array( 'type' => $type, 'points' => $points ); } // }}} // {{{ _extractRectangle() /* * Extract sample image using rectangle marquee and * draw it on destination image. * * @param resource $img GD image resource. * @param int $dstX Top left x coordinate. * @param int $dstY Top left y coordinate. * * @access private / function _extractRectangle(&$img, $dstX, $dstY) { $srcX = $this->_marquee['points'][0]; $srcY = $this->_marquee['points'][1]; $srcW = $this->_marquee['points'][2] - $srcX; $srcH = $this->_marquee['points'][3] - $srcY; imagecopymerge($img, $this->_sample, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH, 100); } // }}} // {{{ _extractSingleColumn() /* * Extract sample image using single column marquee and * draw it on destination image. * * @param resource $img GD image resource. * @param int $dstX Top left x coordinate. * @param int $dstY Top left y coordinate. * * @access private / function _extractSingleColumn(&$img, $dstX, $dstY) { $srcX = $this->_marquee['points']; $srcY = 0; $srcW = 1; $srcH = imagesy($this->_sample); imagecopymerge($img, $this->_sample, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH, 100); } // }}} // {{{ _extractSingleRow() /* * Extract sample image using single column marquee and * draw it on destination image. * * @param resource $img GD image resource. * @param int $dstX Top left x coordinate. * @param int $dstY Top left y coordinate. * * @access private / function _extractSingleRow(&$img, $dstX, $dstY) { $srcX = 0; $srcY = $this->_marquee['points']; $srcW = imagesx($this->_sample); $srcH = 1; imagecopymerge($img, $this->_sample, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH, 100); } // }}} } // }}} / * Local variables: * mode: php * tab-width: 4 * c-basic-offset: 4 * c-hanging-comment-ender-p: nil * End: */ ?>

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