source: plugins/blowupConfig/lib/class.blowup.config.php @ 1179:a43a29427ef3

<?php
# -- BEGIN LICENSE BLOCK ---------------------------------------
#
# This file is part of Dotclear 2.
#
# Copyright (c) 2003-2013 Olivier Meunier & Association Dotclear
# Licensed under the GPL version 2.0 license.
# See LICENSE file or
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK -----------------------------------------
if (!defined('DC_RC_PATH')) { return; }

class blowupConfig
{
     protected static $fonts = array(
          'sans-serif' => array(
               'ss1' => 'Arial, Helvetica, sans-serif',
               'ss2' => 'Verdana,Geneva, Arial, Helvetica, sans-serif',
               'ss3' => '"Lucida Grande", "Lucida Sans Unicode", sans-serif',
               'ss4' => '"Trebuchet MS", Helvetica, sans-serif',
               'ss5' => 'Impact, Charcoal, sans-serif'
          ),

          'serif' => array(
               's1' => 'Times, "Times New Roman", serif',
               's2' => 'Georgia, serif',
               's3' => 'Baskerville, "Palatino Linotype", serif'
          ),

          'monospace' => array(
               'm1' => '"Andale Mono", "Courier New", monospace',
               'm2' => '"Courier New", Courier, mono, monospace'
          )
     );

     protected static $fonts_combo = array();
     protected static $fonts_list = array();

     public static $top_images = array(
          'default' => 'Default',
          'blank' => 'Blank',
          'light-trails-1' => 'Light Trails 1',
          'light-trails-2' => 'Light Trails 2',
          'light-trails-3' => 'Light Trails 3',
          'light-trails-4' => 'Light Trails 4',
          'butterflies' => 'Butterflies',
          'flourish-1' => 'Flourished 1',
          'flourish-2' => 'Flourished 2',
          'animals' => 'Animals',
          'flamingo' => 'Flamingo',
          'rabbit' => 'Rabbit',
          'roadrunner-1' => 'Road Runner 1',
          'roadrunner-2' => 'Road Runner 2',
          'typo' => 'Typo'
     );

     public static function fontsList()
     {
          if (empty(self::$fonts_combo))
          {
               self::$fonts_combo[__('default')] = '';
               foreach (self::$fonts as $family => $g)
               {
                    $fonts = array();
                    foreach ($g as $code => $font) {
                         $fonts[str_replace('"','',$font)] = $code;
                    }
                    self::$fonts_combo[$family] = $fonts;
               }
          }

          return self::$fonts_combo;
     }

     public static function fontDef($c)
     {
          if (empty(self::$fonts_list))
          {
               foreach (self::$fonts as $family => $g)
               {
                    foreach ($g as $code => $font) {
                         self::$fonts_list[$code] = $font;
                    }
               }
          }

          return isset(self::$fonts_list[$c]) ? self::$fonts_list[$c] : null;
     }

     public static function adjustFontSize($s)
     {
          if (preg_match('/^([0-9.]+)\s*(%|pt|px|em|ex)?$/',$s,$m)) {
               if (empty($m[2])) {
                    $m[2] = 'px';
               }
               return $m[1].$m[2];
          }

          return null;
     }

     public static function adjustPosition($p)
     {
          if (!preg_match('/^[0-9]+(:[0-9]+)?$/',$p)) {
               return null;
          }

          $p = explode(':',$p);

          return $p[0].(count($p) == 1 ? ':0' : ':'.$p[1]);
     }

     public static function adjustColor($c)
     {
          if ($c === '') {
               return '';
          }

          $c = strtoupper($c);

          if (preg_match('/^[A-F0-9]{3,6}$/',$c)) {
               $c = '#'.$c;
          }

          if (preg_match('/^#[A-F0-9]{6}$/',$c)) {
               return $c;
          }

          if (preg_match('/^#[A-F0-9]{3,}$/',$c)) {
               return '#'.substr($c,1,1).substr($c,1,1).substr($c,2,1).substr($c,2,1).substr($c,3,1).substr($c,3,1);
          }

          return '';
     }

     public static function cleanCSS($css)
     {
          // TODO ?
          return $css;
     }

     public static function imagesPath()
     {
          global $core;
          return path::real($core->blog->public_path).'/blowup-images';
     }

     public static function imagesURL()
     {
          global $core;
          return $core->blog->settings->system->public_url.'/blowup-images';
     }

     public static function canWriteImages($create=false)
     {
          global $core;

          $public = path::real($core->blog->public_path);
          $imgs = self::imagesPath();

          if (!function_exists('imagecreatetruecolor') || !function_exists('imagepng') || !function_exists('imagecreatefrompng')) {
               $core->error->add(__('At least one of the following functions is not available: '.
                    'imagecreatetruecolor, imagepng & imagecreatefrompng.'));
               return false;
          }

          if (!is_dir($public)) {
               $core->error->add(__('The \'public\' directory does not exist.'));
               return false;
          }

          if (!is_dir($imgs)) {
               if (!is_writable($public)) {
                    $core->error->add(sprintf(__('The \'%s\' directory cannot be modified.'),'public'));
                    return false;
               }
               if ($create) {
                    files::makeDir($imgs);
               }
               return true;
          }

          if (!is_writable($imgs)) {
               $core->error->add(sprintf(__('The \'%s\' directory cannot be modified.'),'public/blowup-images'));
               return false;
          }

          return true;
     }

     public static function uploadImage($f)
     {
          if (!self::canWriteImages(true)) {
               throw new Exception(__('Unable to create images.'));
          }

          $name = $f['name'];
          $type = files::getMimeType($name);

          if ($type != 'image/jpeg' && $type != 'image/png') {
               throw new Exception(__('Invalid file type.'));
          }

          $dest = self::imagesPath().'/uploaded'.($type == 'image/png' ? '.png' : '.jpg');

          if (@move_uploaded_file($f['tmp_name'],$dest) === false) {
               throw new Exception(__('An error occurred while writing the file.'));
          }

          $s = getimagesize($dest);
          if ($s[0] != 800) {
               throw new Exception(__('Uploaded image is not 800 pixels wide.'));
          }

          return $dest;
     }

     public static function createImages(&$config,$uploaded)
     {
          $body_color = $config['body_bg_c'];
          $prelude_color = $config['prelude_c'];
          $gradient = $config['body_bg_g'];
          $comment_color = $config['post_comment_bg_c'];
          $comment_color_my = $config['post_commentmy_bg_c'];
          $top_image = $config['top_image'];

          $config['top_height'] = null;

          if ($top_image != 'custom' && !isset(self::$top_images[$top_image])) {
               $top_image = 'default';
          }
          if ($uploaded && !is_file($uploaded)) {
               $uploaded = null;
          }

          if (!self::canWriteImages(true)) {
               throw new Exception(__('Unable to create images.'));
          }

          $body_fill = array(
               'light' => dirname(__FILE__).'/../alpha-img/gradient-l.png',
               'medium' => dirname(__FILE__).'/../alpha-img/gradient-m.png',
               'dark' => dirname(__FILE__).'/../alpha-img/gradient-d.png'
          );

          $body_g = isset($body_fill[$gradient]) ? $body_fill[$gradient] : false;

          if ($top_image == 'custom' && $uploaded) {
               $page_t = $uploaded;
          } else {
               $page_t = dirname(__FILE__).'/../alpha-img/page-t/'.$top_image.'.png';
          }

          $body_bg = dirname(__FILE__).'/../alpha-img/body-bg.png';
          $page_t_mask = dirname(__FILE__).'/../alpha-img/page-t/image-mask.png';
          $page_b = dirname(__FILE__).'/../alpha-img/page-b.png';
          $comment_t = dirname(__FILE__).'/../alpha-img/comment-t.png';
          $comment_b = dirname(__FILE__).'/../alpha-img/comment-b.png';
          $default_bg = '#e0e0e0';
          $default_prelude = '#ededed';

          self::dropImage(basename($body_bg));
          self::dropImage('page-t.png');
          self::dropImage(basename($page_b));
          self::dropImage(basename($comment_t));
          self::dropImage(basename($comment_b));

          $body_color = self::adjustColor($body_color);
          $prelude_color = self::adjustColor($prelude_color);
          $comment_color = self::adjustColor($comment_color);

          if ($top_image || $body_color || $gradient != 'light' || $prelude_color || $uploaded)
          {
               if (!$body_color) {
                    $body_color = $default_bg;
               }
               $body_color = sscanf($body_color,'#%2X%2X%2X');

               # Create body gradient with color
               $d_body_bg = imagecreatetruecolor(50,180);
               $fill = imagecolorallocate($d_body_bg,$body_color[0],$body_color[1],$body_color[2]);
               imagefill($d_body_bg,0,0,$fill);

               # User choosed a gradient
               if ($body_g) {
                    $s_body_bg = imagecreatefrompng($body_g);
                    imagealphablending($s_body_bg,true);
                    imagecopy($d_body_bg,$s_body_bg,0,0,0,0,50,180);
                    imagedestroy($s_body_bg);
               }

               if (!$prelude_color) {
                    $prelude_color = $default_prelude;
               }
               $prelude_color = sscanf($prelude_color,'#%2X%2X%2X');

               $s_prelude = imagecreatetruecolor(50,30);
               $fill = imagecolorallocate($s_prelude,$prelude_color[0],$prelude_color[1],$prelude_color[2]);
               imagefill($s_prelude,0,0,$fill);
               imagecopy($d_body_bg,$s_prelude,0,0,0,0,50,30);

               imagepng($d_body_bg,self::imagesPath().'/'.basename($body_bg));
          }

          if ($top_image || $body_color || $gradient != 'light')
          {
               # Create top image from uploaded image
               $size = getimagesize($page_t);
               $size = $size[1];
               $type = files::getMimeType($page_t);

               $d_page_t = imagecreatetruecolor(800,$size);

               if ($type == 'image/png') {
                    $s_page_t = @imagecreatefrompng($page_t);
               } else {
                    $s_page_t = @imagecreatefromjpeg($page_t);
               }

               if (!$s_page_t) {
                    throw new exception(__('Unable to open image.'));
               }

               $fill = imagecolorallocate($d_page_t,$body_color[0],$body_color[1],$body_color[2]);
               imagefill($d_page_t,0,0,$fill);

               if ($type == 'image/png')
               {
                    # PNG, we only add body gradient and image
                    imagealphablending($s_page_t,true);
                    imagecopyresized($d_page_t,$d_body_bg,0,0,0,50,800,130,50,130);
                    imagecopy($d_page_t,$s_page_t,0,0,0,0,800,$size);
               }
               else
               {
                    # JPEG, we add image and a frame with rounded corners
                    imagecopy($d_page_t,$s_page_t,0,0,0,0,800,$size);

                    imagecopy($d_page_t,$d_body_bg,0,0,0,50,8,4);
                    imagecopy($d_page_t,$d_body_bg,0,4,0,54,4,4);
                    imagecopy($d_page_t,$d_body_bg,792,0,0,50,8,4);
                    imagecopy($d_page_t,$d_body_bg,796,4,0,54,4,4);

                    $mask = imagecreatefrompng($page_t_mask);
                    imagealphablending($mask,true);
                    imagecopy($d_page_t,$mask,0,0,0,0,800,11);
                    imagedestroy($mask);

                    $fill = imagecolorallocate($d_page_t,255,255,255);
                    imagefilledrectangle($d_page_t,0,11,3,$size-1,$fill);
                    imagefilledrectangle($d_page_t,796,11,799,$size-1,$fill);
                    imagefilledrectangle($d_page_t,0,$size-9,799,$size-1,$fill);
               }

               $config['top_height'] = ($size).'px';

               imagepng($d_page_t,self::imagesPath().'/page-t.png');

               imagedestroy($d_body_bg);
               imagedestroy($d_page_t);
               imagedestroy($s_page_t);

               # Create bottom image with color
               $d_page_b = imagecreatetruecolor(800,8);
               $fill = imagecolorallocate($d_page_b,$body_color[0],$body_color[1],$body_color[2]);
               imagefill($d_page_b,0,0,$fill);

               $s_page_b = imagecreatefrompng($page_b);
               imagealphablending($s_page_b,true);
               imagecopy($d_page_b,$s_page_b,0,0,0,0,800,160);

               imagepng($d_page_b,self::imagesPath().'/'.basename($page_b));

               imagedestroy($d_page_b);
               imagedestroy($s_page_b);
          }

          if ($comment_color) {
               self::commentImages($comment_color,$comment_t,$comment_b,basename($comment_t),basename($comment_b));
          }
          if ($comment_color_my) {
               self::commentImages($comment_color_my,$comment_t,$comment_b,'commentmy-t.png','commentmy-b.png');
          }
     }

     protected static function commentImages($comment_color,$comment_t,$comment_b,$dest_t,$dest_b)
     {
          $comment_color = sscanf($comment_color,'#%2X%2X%2X');

          $d_comment_t = imagecreatetruecolor(500,25);
          $fill = imagecolorallocate($d_comment_t,$comment_color[0],$comment_color[1],$comment_color[2]);
          imagefill($d_comment_t,0,0,$fill);

          $s_comment_t = imagecreatefrompng($comment_t);
          imagealphablending($s_comment_t,true);
          imagecopy($d_comment_t,$s_comment_t,0,0,0,0,500,25);

          imagepng($d_comment_t,self::imagesPath().'/'.$dest_t);
          imagedestroy($d_comment_t);
          imagedestroy($s_comment_t);

          $d_comment_b = imagecreatetruecolor(500,7);
          $fill = imagecolorallocate($d_comment_b,$comment_color[0],$comment_color[1],$comment_color[2]);
          imagefill($d_comment_b,0,0,$fill);

          $s_comment_b = imagecreatefrompng($comment_b);
          imagealphablending($s_comment_b,true);
          imagecopy($d_comment_b,$s_comment_b,0,0,0,0,500,7);

          imagepng($d_comment_b,self::imagesPath().'/'.$dest_b);
          imagedestroy($d_comment_b);
          imagedestroy($s_comment_b);
     }

     public static function dropImage($img)
     {
          $img = path::real(self::imagesPath().'/'.$img);
          if (is_writable(dirname($img))) {
               @unlink($img);
               @unlink(dirname($img).'/.'.basename($img,'.png').'_sq.jpg');
               @unlink(dirname($img).'/.'.basename($img,'.png').'_m.jpg');
               @unlink(dirname($img).'/.'.basename($img,'.png').'_s.jpg');
               @unlink(dirname($img).'/.'.basename($img,'.png').'_sq.jpg');
               @unlink(dirname($img).'/.'.basename($img,'.png').'_t.jpg');
          }
     }
}
?>