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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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/**
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* NetPBM implementation for Image_Transform package
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This source file is subject to version 3.0 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_0.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to license@php.net so we can mail you a copy immediately.
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*
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* @category Image
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* @package Image_Transform
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* @author Peter Bowyer <peter@mapledesign.co.uk>
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* @author Philippe Jausions <Philippe.Jausions@11abacus.com>
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* @copyright 2002-2005 The PHP Group
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version CVS: $Id: NetPBM.php,v 1.21 2007/04/19 16:36:09 dufuz Exp $
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* @link http://pear.php.net/package/Image_Transform
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*/
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require_once 'Image/Transform.php';
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require_once 'System.php';
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/**
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* NetPBM implementation for Image_Transform package
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*
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* @category Image
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* @package Image_Transform
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* @subpackage Image_Transform_Driver_NetPBM
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* @author Peter Bowyer <peter@mapledesign.co.uk>
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* @author Philippe Jausions <Philippe.Jausions@11abacus.com>
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* @copyright 2002-2005 The PHP Group
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version Release: @package_version@
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* @link http://pear.php.net/package/Image_Transform
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* @link http://netpbm.sourceforge.net/
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*/
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class Image_Transform_Driver_NetPBM extends Image_Transform
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{
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/**
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* associative array commands to be executed
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* @var array
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*/
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var $command = array();
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/**
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* Class Constructor
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*/
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function Image_Transform_Driver_NetPBM()
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{
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$this->__construct();
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} // End function Image_NetPBM
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/**
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* Class Constructor
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*/
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function __construct()
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{
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if (!defined('IMAGE_TRANSFORM_NETPBM_PATH')) {
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$path = dirname(System::which('pnmscale'))
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. DIRECTORY_SEPARATOR;
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define('IMAGE_TRANSFORM_NETPBM_PATH', $path);
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}
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH . 'pnmscale'
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. ((OS_WINDOWS) ? '.exe' : ''))) {
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$this->isError(PEAR::raiseError('Couldn\'t find "pnmscale" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED));
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}
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} // End function Image_NetPBM
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/**
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* Load image
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*
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* @param string filename
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* @return bool|PEAR_Error TRUE or a PEAR_Error object on error
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* @access public
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*/
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function load($image)
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{
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$this->image = $image;
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$result = $this->_get_image_details($image);
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if (PEAR::isError($result)) {
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return $result;
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}
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return true;
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} // End load
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/**
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* Resize the image.
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*
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* @access private
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*
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* @param int $new_x New width
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* @param int $new_y New height
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* @param mixed $options Optional parameters
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*
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* @return true on success or PEAR Error object on error
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* @see PEAR::isError()
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*/
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function _resize($new_x, $new_y, $options = null)
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{
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// there's no technical reason why resize can't be called multiple
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// times...it's just silly to do so
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$scaleMethod = $this->_getOption('scaleMethod', $options, 'smooth');
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switch ($scaleMethod) {
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case 'pixel':
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$scale_x = $new_x / $this->img_x;
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if ($scale_x == $new_y / $this->img_x
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&& $scale_x > 1
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&& floor($scale_x) == $scale_x) {
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if (System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pnmenlarge'
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. ((OS_WINDOWS) ? '.exe' : ''))) {
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmenlarge',
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$scale_x);
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} else {
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return PEAR::raiseError('Couldn\'t find "pnmenlarge" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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} else {
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmscale',
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'-nomix -width ' . ((int) $new_x)
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. ' -height ' . ((int) $new_y));
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}
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break;
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case 'smooth':
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default:
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmscale',
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'-width ' . ((int) $new_x) . ' -height '
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. ((int) $new_y));
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// Smooth things if scaling by a factor more than 3
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// (see pnmscale man page)
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if ($new_x / $this->img_x > 3
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|| $new_y / $this->img_y > 3) {
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if (System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pnmsmooth' . ((OS_WINDOWS) ? '.exe' : ''))) {
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmsmooth');
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} else {
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return PEAR::raiseError('Couldn\'t find "pnmsmooth" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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}
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} // End [SWITCH]
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$this->_set_new_x($new_x);
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$this->_set_new_y($new_y);
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return true;
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} // End resize
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/**
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* Rotates the image
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*
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* @param int $angle The angle to rotate the image through
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* @param array $options
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* @return bool|PEAR_Error TRUE on success, PEAR_Error object on error
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*/
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function rotate($angle, $options = null)
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{
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if (!($angle == $this->_rotation_angle($angle))) {
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// No rotation needed
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return true;
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}
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// For pnmrotate, we want to limit rotations from -45 to +45 degrees
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// even if acceptable range is -90 to +90 (see pnmrotate man page)
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// Bring image to that range by using pamflip
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if ($angle > 45 && $angle < 315) {
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pamflip' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "pamflip" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$quarters = floor(ceil($angle / 45) / 2);
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pamflip',
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'-rotate' . (360 - $quarters * 90));
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$angle -= $quarters * 90;
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}
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if ($angle != 0) {
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if ($angle > 45) {
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$angle -= 360;
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}
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pnmrotate' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "pnmrotate" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$bgcolor = $this->_getColor('canvasColor', $options,
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array(255, 255, 255));
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$bgcolor = $this->colorarray2colorhex($bgcolor);
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$scaleMethod = $this->_getOption('scaleMethod', $options, 'smooth');
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if ($scaleMethod != 'pixel') {
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmrotate',
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'-background=' . $bgcolor . ' -' . (float) $angle);
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} else {
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmrotate',
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'-background=' . $bgcolor . ' -noantialias -' . (float) $angle);
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}
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}
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return true;
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} // End rotate
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/**
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* Crop an image
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*
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* @param int $width Cropped image width
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* @param int $height Cropped image height
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* @param int $x positive X-coordinate to crop at
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* @param int $y positive Y-coordinate to crop at
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*
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* @return mixed TRUE or a PEAR error object on error
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* @todo keep track of the new cropped size
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**/
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function crop($width, $height, $x = 0, $y = 0)
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{
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// Sanity check
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if (!$this->intersects($width, $height, $x, $y)) {
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return PEAR::raiseError('Nothing to crop', IMAGE_TRANSFORM_ERROR_OUTOFBOUND);
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}
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if ($x != 0 || $y != 0
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|| $width != $this->img_x
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|| $height != $this->img_y) {
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pnmcut' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "pnmcut" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmcut',
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'-left ' . ((int) $x)
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. ' -top ' . ((int) $y)
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. ' -width ' . ((int) $width)
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. ' -height ' . ((int) $height));
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}
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return true;
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} // End crop
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/**
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* Adjust the image gamma
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*
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* @param float $outputgamma
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*
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* @return mixed TRUE or a PEAR error object on error
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*/
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function gamma($outputgamma = 1.0) {
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if ($outputgamme != 1.0) {
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pnmgamma' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "pnmgamma" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pnmgamma',
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(float) $outputgamma);
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}
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return true;
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}
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/**
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* Vertical mirroring
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*
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* @see mirror()
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* @return TRUE or PEAR Error object on error
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**/
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function flip()
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{
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pamflip' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "pamflip" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pamflip',
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'-topbottom');
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return true;
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}
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/**
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* Horizontal mirroring
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*
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* @see flip()
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* @return TRUE or PEAR Error object on error
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**/
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function mirror()
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{
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'pamflip' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "pamflip" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'pamflip',
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'-leftright');
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return true;
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}
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/**
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* Converts an image into greyscale colors
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*
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* @access public
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* @return mixed TRUE or a PEAR error object on error
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**/
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function greyscale()
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{
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if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
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'ppmtopgm' . ((OS_WINDOWS) ? '.exe' : ''))) {
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return PEAR::raiseError('Couldn\'t find "ppmtopgm" binary',
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IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
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}
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$this->command[] = $this->_prepare_cmd(
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IMAGE_TRANSFORM_NETPBM_PATH,
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'ppmtopgm');
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return true;
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}
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347 |
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348 |
/**
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349 |
* adds text to an image
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*
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351 |
* @param array options Array contains options
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352 |
* array(
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353 |
* 'text' // The string to draw
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354 |
* 'x' // Horizontal position
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355 |
* 'y' // Vertical Position
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* 'color' // Font color
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357 |
* 'font' // Font to be used
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|
|
358 |
* 'size' // Size of the fonts in pixel
|
|
|
359 |
* 'resize_first' // Tell if the image has to be resized
|
|
|
360 |
* // before drawing the text
|
|
|
361 |
* )
|
|
|
362 |
*
|
|
|
363 |
* @return void
|
|
|
364 |
*/
|
|
|
365 |
function addText($params)
|
|
|
366 |
{
|
|
|
367 |
if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH .
|
|
|
368 |
'ppmlabel' . ((OS_WINDOWS) ? '.exe' : ''))) {
|
|
|
369 |
return PEAR::raiseError('Couldn\'t find "ppmlabel" binary',
|
|
|
370 |
IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
|
|
|
371 |
}
|
|
|
372 |
|
|
|
373 |
// we ignore 'resize_first' since the more logical approach would be
|
|
|
374 |
// for the user to just call $this->_resize() _first_ ;)
|
|
|
375 |
extract(array_merge($this->_get_default_text_params(), $params));
|
|
|
376 |
|
|
|
377 |
$options = array('colorFont' => $color);
|
|
|
378 |
$color = $this->_getColor('colorFont', $options, array(0, 0, 0));
|
|
|
379 |
$color = $this->colorarray2colorhex($color);
|
|
|
380 |
|
|
|
381 |
$this->command[] = $this->_prepare_cmd(
|
|
|
382 |
IMAGE_TRANSFORM_NETPBM_PATH,
|
|
|
383 |
'ppmlabel',
|
|
|
384 |
'-angle ' . ((int) $angle)
|
|
|
385 |
. ' -colour ' . escapeshellarg($color)
|
|
|
386 |
. ' -size ' . ((float) $size)
|
|
|
387 |
. ' -x ' . ((int) $x)
|
|
|
388 |
. ' -y ' . ((int) ($y + $size))
|
|
|
389 |
. ' -text ' . escapeshellarg($text));
|
|
|
390 |
|
|
|
391 |
} // End addText
|
|
|
392 |
|
|
|
393 |
/**
|
|
|
394 |
* Image_Transform_Driver_NetPBM::_postProcess()
|
|
|
395 |
*
|
|
|
396 |
* @param $type
|
|
|
397 |
* @param $quality
|
|
|
398 |
* @return string A chain of shell command
|
|
|
399 |
* @link http://netpbm.sourceforge.net/doc/directory.html
|
|
|
400 |
*/
|
|
|
401 |
function _postProcess($type, $quality)
|
|
|
402 |
{
|
|
|
403 |
array_unshift($this->command, $this->_prepare_cmd(
|
|
|
404 |
IMAGE_TRANSFORM_NETPBM_PATH,
|
|
|
405 |
strtolower($this->type) . 'topnm',
|
|
|
406 |
escapeshellarg($this->image)));
|
|
|
407 |
$arg = '';
|
|
|
408 |
$type = strtolower($type);
|
|
|
409 |
$program = '';
|
|
|
410 |
switch ($type) {
|
|
|
411 |
// ppmto* converters
|
|
|
412 |
case 'gif':
|
|
|
413 |
if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH . 'ppmquant'
|
|
|
414 |
. ((OS_WINDOWS) ? '.exe' : ''))) {
|
|
|
415 |
return PEAR::raiseError('Couldn\'t find "ppmquant" binary',
|
|
|
416 |
IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
|
|
|
417 |
}
|
|
|
418 |
$this->command[] = $this->_prepare_cmd(
|
|
|
419 |
IMAGE_TRANSFORM_NETPBM_PATH,
|
|
|
420 |
'ppmquant',
|
|
|
421 |
256);
|
|
|
422 |
case 'acad':
|
|
|
423 |
case 'bmp':
|
|
|
424 |
case 'eyuv':
|
|
|
425 |
case 'ilbm':
|
|
|
426 |
case 'leaf':
|
|
|
427 |
case 'lj':
|
|
|
428 |
case 'mitsu':
|
|
|
429 |
case 'mpeg':
|
|
|
430 |
case 'neo':
|
|
|
431 |
case 'pcx':
|
|
|
432 |
case 'pi1':
|
|
|
433 |
case 'pict':
|
|
|
434 |
case 'pj':
|
|
|
435 |
case 'pjxl':
|
|
|
436 |
case 'puzz':
|
|
|
437 |
case 'sixel':
|
|
|
438 |
case 'tga':
|
|
|
439 |
case 'uil':
|
|
|
440 |
case 'xpm':
|
|
|
441 |
case 'yuv':
|
|
|
442 |
$program = 'ppmto' . $type;
|
|
|
443 |
break;
|
|
|
444 |
|
|
|
445 |
// Windows icon
|
|
|
446 |
case 'winicon':
|
|
|
447 |
case 'ico':
|
|
|
448 |
$type = 'winicon';
|
|
|
449 |
$program = 'ppmto' . $type;
|
|
|
450 |
break;
|
|
|
451 |
|
|
|
452 |
// pbmto* converters
|
|
|
453 |
case 'ascii':
|
|
|
454 |
case 'text':
|
|
|
455 |
case 'txt':
|
|
|
456 |
$type = 'ascii';
|
|
|
457 |
case 'atk':
|
|
|
458 |
case 'bbubg':
|
|
|
459 |
case 'epsi':
|
|
|
460 |
case 'epson':
|
|
|
461 |
case 'escp2':
|
|
|
462 |
case 'icon': // Sun icon
|
|
|
463 |
case 'gem':
|
|
|
464 |
case 'go':
|
|
|
465 |
case 'lj':
|
|
|
466 |
case 'ln03':
|
|
|
467 |
case 'lps':
|
|
|
468 |
case 'macp':
|
|
|
469 |
case 'mda':
|
|
|
470 |
case 'mgr':
|
|
|
471 |
case 'pi3':
|
|
|
472 |
case 'pk':
|
|
|
473 |
case 'plot':
|
|
|
474 |
case 'ptx':
|
|
|
475 |
case 'wbp':
|
|
|
476 |
case 'xbm':
|
|
|
477 |
case 'x10bm':
|
|
|
478 |
case 'ybm':
|
|
|
479 |
case 'zinc':
|
|
|
480 |
case '10x':
|
|
|
481 |
$program = 'pbmto' . $type;
|
|
|
482 |
break;
|
|
|
483 |
|
|
|
484 |
// pamto* converters
|
|
|
485 |
case 'jpc':
|
|
|
486 |
$type = 'jpeg2k';
|
|
|
487 |
case 'html':
|
|
|
488 |
case 'pfm':
|
|
|
489 |
case 'tga':
|
|
|
490 |
$program = 'pamto' . $type;
|
|
|
491 |
break;
|
|
|
492 |
|
|
|
493 |
// pnmto* converters
|
|
|
494 |
case 'jpc':
|
|
|
495 |
$type = 'jpeg2k';
|
|
|
496 |
break;
|
|
|
497 |
case 'wfa':
|
|
|
498 |
$type = 'fiasco';
|
|
|
499 |
break;
|
|
|
500 |
case 'jpg':
|
|
|
501 |
$type = 'jpeg';
|
|
|
502 |
case 'jpeg':
|
|
|
503 |
$arg = '--quality=' . $quality;
|
|
|
504 |
case 'jbig':
|
|
|
505 |
case 'fits':
|
|
|
506 |
case 'palm':
|
|
|
507 |
case 'pclxl':
|
|
|
508 |
case 'png':
|
|
|
509 |
case 'ps':
|
|
|
510 |
case 'rast':
|
|
|
511 |
case 'rle':
|
|
|
512 |
case 'sgi':
|
|
|
513 |
case 'sir':
|
|
|
514 |
case 'tiff':
|
|
|
515 |
case 'xwd':
|
|
|
516 |
$program = 'pnmto' . $type;
|
|
|
517 |
break;
|
|
|
518 |
|
|
|
519 |
} // switch
|
|
|
520 |
|
|
|
521 |
if ($program == '') {
|
|
|
522 |
$program = 'pnmto' . $type;
|
|
|
523 |
}
|
|
|
524 |
|
|
|
525 |
if (!System::which(IMAGE_TRANSFORM_NETPBM_PATH . $program
|
|
|
526 |
. ((OS_WINDOWS) ? '.exe' : ''))) {
|
|
|
527 |
return PEAR::raiseError("Couldn't find \"$program\" binary",
|
|
|
528 |
IMAGE_TRANSFORM_ERROR_UNSUPPORTED);
|
|
|
529 |
}
|
|
|
530 |
$this->command[] = $this->_prepare_cmd(
|
|
|
531 |
IMAGE_TRANSFORM_NETPBM_PATH,
|
|
|
532 |
$program);
|
|
|
533 |
return implode('|', $this->command);
|
|
|
534 |
}
|
|
|
535 |
|
|
|
536 |
/**
|
|
|
537 |
* Save the image file
|
|
|
538 |
*
|
|
|
539 |
* @param $filename string the name of the file to write to
|
|
|
540 |
* @param string $type (jpeg,png...);
|
|
|
541 |
* @param int $quality 75
|
|
|
542 |
* @return TRUE or PEAR Error object on error
|
|
|
543 |
*/
|
|
|
544 |
function save($filename, $type = null, $quality = 75)
|
|
|
545 |
{
|
|
|
546 |
$type = (is_null($type)) ? $this->type : $type;
|
|
|
547 |
$options = array();
|
|
|
548 |
if (!is_null($quality)) {
|
|
|
549 |
$options['quality'] = $quality;
|
|
|
550 |
}
|
|
|
551 |
$quality = $this->_getOption('quality', $options, $quality);
|
|
|
552 |
|
|
|
553 |
$nullDevice = (OS_WINDOWS) ? 'nul' : '/dev/null';
|
|
|
554 |
|
|
|
555 |
$cmd = $this->_postProcess($type, $quality) . '> "' . $filename . '"';
|
|
|
556 |
exec($cmd . '2> ' . $nullDevice, $res, $exit);
|
|
|
557 |
if (!$this->keep_settings_on_save) {
|
|
|
558 |
$this->free();
|
|
|
559 |
}
|
|
|
560 |
|
|
|
561 |
return ($exit == 0) ? true : PEAR::raiseError(implode('. ', $res),
|
|
|
562 |
IMAGE_TRANSFORM_ERROR_IO);
|
|
|
563 |
} // End save
|
|
|
564 |
|
|
|
565 |
/**
|
|
|
566 |
* Display image without saving and lose changes
|
|
|
567 |
*
|
|
|
568 |
* @param string $type (jpeg,png...);
|
|
|
569 |
* @param int $quality 75
|
|
|
570 |
* @return TRUE or PEAR Error object on error
|
|
|
571 |
*/
|
|
|
572 |
function display($type = null, $quality = null)
|
|
|
573 |
{
|
|
|
574 |
$type = (is_null($type)) ? $this->type : $type;
|
|
|
575 |
$options = array();
|
|
|
576 |
if (!is_null($quality)) {
|
|
|
577 |
$options['quality'] = $quality;
|
|
|
578 |
}
|
|
|
579 |
$quality = $this->_getOption('quality', $options, 75);
|
|
|
580 |
|
|
|
581 |
header('Content-type: ' . $this->getMimeType($type));
|
|
|
582 |
$cmd = $this->_postProcess($type, $quality);
|
|
|
583 |
passthru($cmd . ' 2>&1');
|
|
|
584 |
if (!$this->keep_settings_on_save) {
|
|
|
585 |
$this->free();
|
|
|
586 |
}
|
|
|
587 |
|
|
|
588 |
return true;
|
|
|
589 |
}
|
|
|
590 |
|
|
|
591 |
/**
|
|
|
592 |
* Destroy image handle
|
|
|
593 |
*
|
|
|
594 |
* @return void
|
|
|
595 |
*/
|
|
|
596 |
function free()
|
|
|
597 |
{
|
|
|
598 |
$this->command = array();
|
|
|
599 |
}
|
|
|
600 |
|
|
|
601 |
|
|
|
602 |
} // End class ImageIM
|