<?php

/**
 * @file
 * Generate a PDF for the print_pdf module using the TCPDF library.
 *
 * @ingroup print
 */

define('PRINT_PDF_TCPDF_FONT_FAMILY_DEFAULT', '');
define('PRINT_PDF_TCPDF_FONT_SIZE_DEFAULT', 10);
define('PRINT_PDF_TCPDF_FONT_SUBSETTING_DEFAULT', FALSE);

/**
 * Implements hook_pdf_tool_info().
 */
function print_pdf_tcpdf_pdf_tool_info() {
  return array(
    'name' => 'TCPDF',
    'min_version' => '5.9.001',
    'url' => 'http://sourceforge.net/projects/tcpdf/files/latest',
    'expand_css' => TRUE,
    'public_dirs' => array(
      'cache',
    ),
    'tool_dirs' => array(
      'images',
    ),
  );
}

/**
 * Implements hook_theme().
 */
function print_pdf_tcpdf_theme() {
  return array(
    'print_pdf_tcpdf_header' => array(
      'variables' => array('pdf' => NULL, 'html' => '', 'font' => array()),
      'file' => 'print_pdf_tcpdf.pages.inc',
    ),
    'print_pdf_tcpdf_page' => array(
      'variables' => array('pdf' => NULL),
      'file' => 'print_pdf_tcpdf.pages.inc',
    ),
    'print_pdf_tcpdf_content' => array(
      'variables' => array('pdf' => NULL, 'html' => '', 'font' => array()),
      'file' => 'print_pdf_tcpdf.pages.inc',
    ),
    'print_pdf_tcpdf_footer' => array(
      'variables' => array('pdf' => NULL, 'html' => '', 'font' => array()),
      'file' => 'print_pdf_tcpdf.pages.inc',
    ),
    'print_pdf_tcpdf_footer2' => array(
      'variables' => array('pdf' => NULL),
      'file' => 'print_pdf_tcpdf.pages.inc',
    ),
  );
}

/**
 * Implements hook_menu().
 */
function print_pdf_tcpdf_menu() {
  $items = array();

  $items['admin/config/user-interface/print/pdf/tcpdf'] = array(
    'title' => 'TCPDF',
    'description' => 'Configure the TCPDF options.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('print_pdf_tcpdf_settings'),
    'access arguments'  => array('administer print'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'print_pdf_tcpdf.admin.inc',
  );

  return $items;
}

/**
 * Implements hook_pdf_tool_version().
 */
function print_pdf_tcpdf_pdf_tool_version($pdf_tool) {
  if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
    // Prevent TCPDF default configs.
    define('K_TCPDF_EXTERNAL_CONFIG', TRUE);
  }
  if (file_exists(DRUPAL_ROOT . '/' . $pdf_tool)) {
    include_once DRUPAL_ROOT . '/' . $pdf_tool;
  }

  // Hide warnings, as some TCPDF constants may still be undefined.
  if (class_exists('TCPDF')) {
    @$pdf = new TCPDF();

    if (class_exists('TCPDF_STATIC')) {
      return TCPDF_STATIC::getTCPDFVersion();
    }
    elseif (method_exists($pdf, 'getTCPDFVersion')) {
      return $pdf->getTCPDFVersion();
    }
    elseif (defined('PDF_PRODUCER')) {
      sscanf(PDF_PRODUCER, "TCPDF %s", $version);

      return $version;
    }
  }
  return 'unknown';
}

/**
 * Implements hook_print_pdf_available_libs_alter().
 */
function print_pdf_tcpdf_print_pdf_available_libs_alter(&$pdf_tools) {
  module_load_include('inc', 'print', 'includes/print');
  $tools = _print_scan_libs('tcpdf', '!^tcpdf.php$!');

  foreach ($tools as $tool) {
    $pdf_tools['print_pdf_tcpdf|' . $tool] = 'TCPDF (' . dirname($tool) . ')';
  }
}