<?php
/**
 * Renders PDF page header
 * @ingroup themeable
 */
function theme_pdfview_pdf_header($this) {
  if (!isset($this->original_lMargin)) {
    $this->original_lMargin = $this->lMargin;
  }
  if (!isset($this->original_rMargin)) {
    $this->original_rMargin = $this->rMargin;
  }
  
  //set current position
  $this->SetXY($this->original_lMargin, $this->header_margin);
  
  if (($this->header_logo) AND ($this->header_logo != K_BLANK_IMAGE)) {
    $this->Image(K_PATH_IMAGES.$this->header_logo, $this->original_lMargin, $this->header_margin, $this->header_logo_width);
  }
  else {
    $this->img_rb_y = $this->GetY();
  }
  
  $cell_height = round((K_CELL_HEIGHT_RATIO * $this->header_font[2]) / $this->k, 2);
  
  $header_x = $this->original_lMargin + ($this->header_logo_width * 1.05); //set left margin for text data cell
  
  // header title
  $this->SetFont($this->header_font[0], 'B', $this->header_font[2] + 1);
  $this->SetX($header_x);
  $this->Cell($this->header_width, $cell_height, $this->header_title, 0, 1, 'L'); 
  
  // header string
  $this->SetFont($this->header_font[0], $this->header_font[1], $this->header_font[2]);
  $this->SetX($header_x);
  $this->MultiCell($this->header_width, $cell_height, $this->header_string, 0, 'L', 0);
  
  // print an ending header line
  if (empty($this->header_width)) {
    //set style for cell border
    $this->SetLineWidth(0.1);
    $this->SetDrawColor(0, 0, 0);
    $this->SetY(1 + max($this->img_rb_y, $this->GetY()));
    $this->SetX($this->original_lMargin);
    $this->Cell(0, 0, '', 'T', 0, 'C'); 
  }
  
  //restore position
 $this->SetXY($this->original_lMargin, $this->tMargin);
 return $this;
}

/**
 * Renders PDF page footer
 * @ingroup themeable
 */
function theme_pdfview_pdf_footer($this) {
  if (!isset($this->original_lMargin)) {
    $this->original_lMargin = $this->lMargin;
  }
  if (!isset($this->original_rMargin)) {
    $this->original_rMargin = $this->rMargin;
  }

  //set font
  $this->SetFont($this->footer_font[0], $this->footer_font[1] , $this->footer_font[2]);
  //set style for cell border
  $line_width = 0.1;
  $this->SetLineWidth($line_width);
  $this->SetDrawColor(0, 0, 0);

  $footer_height = round((K_CELL_HEIGHT_RATIO * $this->footer_font[2]) / $this->k, 2); //footer height
  //get footer y position
  $footer_y = $this->h - $this->footer_margin - $footer_height;
  //set current position
  $this->SetXY($this->original_lMargin, $footer_y);

  //print document barcode
  if ($this->barcode) {
    $this->Ln();
    $barcode_width = round(($this->w - $this->original_lMargin - $this->original_rMargin)); //max width
    $this->writeBarcode($this->original_lMargin, $footer_y + $line_width, $barcode_width, $footer_height - $line_width, "C128B", false, false, 2, $this->barcode);
  }

  $this->SetXY($this->original_lMargin, $footer_y);

  //Print page number
  $this->Cell(0, $footer_height, $this->l['w_page']." ".$this->PageNo().' / {nb}', 'T', 0, 'R');
  return $this;
}

/**
 * Renders PDF output for a node
 * @ingroup themeable
 */
function theme_pdfview_node(&$pdf, $node) {
  $pdf->AddPage();

  $pdf = theme('pdfview_title', $pdf, $node->title);

  $author = strip_tags(theme('username', $node));
  $pdf = theme('pdfview_author', $pdf, $author);

  $pdf = theme('pdfview_published', $pdf, $node->created);

  if (node_hook($node, 'view')) {
    node_invoke($node, 'view');
  }
  else {
    $node = node_prepare($node);
  }
  node_invoke_nodeapi($node, 'view');
  $content = drupal_render($node->content);

  $content = pdfview_check_images($content);
  $pdf->SetFont(variable_get('pdfview_tcpdf_font_main_name', 'FreeSans'), '', variable_get('pdfview_tcpdf_font_main_size', 10));
  $pdf = theme('pdfview_html', $pdf, $content);

  return $pdf;
}

/**
 * Renders a title
 * @ingroup themeable
 */
function theme_pdfview_title(&$pdf, $title) {
  $pdf->SetFont(variable_get('pdfview_tcpdf_font_main_name', 'FreeSans'), 'B',  variable_get('pdfview_tcpdf_font_main_size', 10) * variable_get('pdfview_tcpdf_font_title_magnification', 1.3));
  $pdf->SetLineWidth(1);
  $pdf = theme('pdfview_html', $pdf, $title);
  $pdf->Ln(5);
  return $pdf;
}

/**
 * Renders an author line
 * @ingroup themeable
 */
function theme_pdfview_author(&$pdf, $author) {
  $pdf->SetFont(variable_get('pdfview_tcpdf_font_main_name', 'FreeSans'),'BI', variable_get('pdfview_tcpdf_font_main_size', 10));
  $pdf->MultiCell(0, 5, t('By @author', array('@author' => $author)), 0, 'L', 0);
  return $pdf;
}

/**
 * Renders a publication date
 * @ingroup themeable
 */
function theme_pdfview_published(&$pdf, $timestamp) {
  $published = format_date($timestamp, 'small');
  $pdf->SetFont('', '', variable_get('pdfview_tcpdf_font_main_size', 10));
  $pdf->MultiCell(0, 5, t('Published: @date', array('@date' => $published)), 0, 'L', 0);
  $pdf->Ln(5);
  return $pdf;
}

/**
 * Renders an HTML string to PDF
 * @ingroup themeable
 */
function theme_pdfview_html(&$pdf, $html) {
  $pdf->writeHTML($html, FALSE);
  return $pdf;
}