Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle 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 General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * This script implements some useful svg manipulation tricks.

 *

 * @package    core_admin

 * @subpackage cli

 * @copyright  2012 Petr Skoda {@link http://skodak.org}

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

define('CLI_SCRIPT', true);

require(__DIR__.'/../../config.php');

require_once($CFG->libdir.'/clilib.php');

// Now get cli options.

list($options, $unrecognized) = cli_get_params(array('help'=>false, 'ie9fix'=>false, 'noaspectratio'=>false, 'path'=>$CFG->dirroot),

    array('h'=>'help'));

if ($unrecognized) {

    $unrecognized = implode("\n  ", $unrecognized);

    cli_error(get_string('cliunknowoption', 'admin', $unrecognized));

}

// If necessary add files that should be ignored - such as in 3rd party plugins.

$ignorelist = array();

$path = $options['path'];

if (!file_exists($path)) {

    cli_error("Invalid path $path");

}

if ($options['ie9fix']) {

    core_admin_recurse_svgs($path, '', 'core_admin_svgtool_ie9fix', $ignorelist);

} else if ($options['noaspectratio']) {

    core_admin_recurse_svgs($path, '', 'core_admin_svgtool_noaspectratio', $ignorelist);

} else {

    $help =

        "Some svg image tweaks for icon designers.

Options:

-h, --help            Print out this help

--ie9fix              Adds preserveAspectRatio=\"xMinYMid meet\" to every svg image

--noaspectratio       Removes preserveAspectRatio from svg files

--path=PATH           Path to directory or file to be converted, by default \$CFG->dirroot

Examples:

\$ php svgtool.php --ie9fix

\$ php svgtool.php --ie9fix --path=../../../pix

\$ php svgtool.php --noaspectratio

";

    echo $help;

    die;

}

exit(0);

/**

 * Fixes SVG images for IE9.

 *

 * @param string $file

 */

function core_admin_svgtool_ie9fix($file) {

    global $CFG;

    if (strpos($file, $CFG->dirroot.DIRECTORY_SEPARATOR) === 0) {

        $relfile = substr($file, strlen($CFG->dirroot));

    } else {

        $relfile = $file;

    }

    $content = file_get_contents($file);

    if (!preg_match('/<svg\s[^>]*>/', $content, $matches)) {

        echo "  skipping $relfile (invalid format)\n";

        return;

    }

    $svg = $matches[0];

    if (strpos($svg, 'preserveAspectRatio') !== false) {

        return;

    }

    if (!is_writable($file)) {

        echo "  skipping $relfile (can not modify file)\n";

        return;

    }

    $newsvg = rtrim($svg, '>').' preserveAspectRatio="xMinYMid meet">';

    $content = str_replace($svg, $newsvg, $content);

    echo "converting $relfile\n";

    file_put_contents($file, $content);

}

/**

 * Removes preserveAspectRatio attributes from SVG images.

 *

 * @param string $file

 */

function core_admin_svgtool_noaspectratio($file) {

    global $CFG;

    if (strpos($file, $CFG->dirroot.DIRECTORY_SEPARATOR) === 0) {

        $relfile = substr($file, strlen($CFG->dirroot));

    } else {

        $relfile = $file;

    }

    $content = file_get_contents($file);

    if (!preg_match('/<svg\s[^>]*>/', $content, $matches)) {

        echo "  skipping $relfile (invalid format)\n";

        return;

    }

    $svg = $matches[0];

    if (strpos($svg, 'preserveAspectRatio="xMinYMid meet"') === false) {

        return;

    }

    if (!is_writable($file)) {

        echo "  skipping $relfile (can not modify file)\n";

        return;

    }

    $newsvg = preg_replace('/ ?preserveAspectRatio="xMinYMid meet"/', '', $svg);

    $content = str_replace($svg, $newsvg, $content);

    echo "resetting $relfile\n";

    file_put_contents($file, $content);

}

/**

 * Recursively works through directories of this theme, finding and fixing SVG images.

 *

 * @param string $base

 * @param string $sub

 * @param string $filecallback

 * @param array $ignorelist List of files to be ignored and skipped.

 */

function core_admin_recurse_svgs($base, $sub, $filecallback, $ignorelist) {

    if (is_dir("$base/$sub")) {

        $items = new DirectoryIterator("$base/$sub");

        foreach ($items as $item) {

            if ($item->isDot()) {

                continue;

            }

            $file = $item->getFilename();

            core_admin_recurse_svgs("$base/$sub", $file, $filecallback, $ignorelist);

        }

        unset($item);

        unset($items);

        return;

    } else if (is_file("$base/$sub")) {

        if (substr($sub, -4) !== '.svg') {

            return;

        }

        $file = realpath("$base/$sub");

        if (in_array($file, $ignorelist)) {

            return;

        }

        $filecallback($file);

    }

}