/**
* Installs a new font family
* This function maps a font-family name to a font. It tries to locate the
* bold, italic, and bold italic versions of the font as well. Once the
* files are located, ttf versions of the font are copied to the fonts
* directory. Changes to the font lookup table are saved to the cache.
*
* @param string $fontname the font-family name
* @param string $normal the filename of the normal face font subtype
* @param string $bold the filename of the bold face font subtype
* @param string $italic the filename of the italic face font subtype
* @param string $bold_italic the filename of the bold italic face font subtype
*
* @throws Exception
*/
function install_font_family($fontname, $normal, $bold = null, $italic = null, $bold_italic = null)
{
$fontMetrics = new FontMetrics(CanvasFactory::get_instance(new DOMPDF()), new Options());
// Check if the base filename is readable
if (!is_readable($normal)) {
throw new Exception("Unable to read '{$normal}'.");
}
$dir = dirname($normal);
$basename = basename($normal);
$last_dot = strrpos($basename, '.');
if ($last_dot !== false) {
$file = substr($basename, 0, $last_dot);
$ext = strtolower(substr($basename, $last_dot));
} else {
$file = $basename;
$ext = '';
}
if (!in_array($ext, array(".ttf", ".otf"))) {
throw new Exception("Unable to process fonts of type '{$ext}'.");
}
// Try $file_Bold.$ext etc.
$path = "{$dir}/{$file}";
$patterns = array("bold" => array("_Bold", "b", "B", "bd", "BD"), "italic" => array("_Italic", "i", "I"), "bold_italic" => array("_Bold_Italic", "bi", "BI", "ib", "IB"));
foreach ($patterns as $type => $_patterns) {
if (!isset(${$type}) || !is_readable(${$type})) {
foreach ($_patterns as $_pattern) {
if (is_readable("{$path}{$_pattern}{$ext}")) {
${$type} = "{$path}{$_pattern}{$ext}";
break;
}
}
if (is_null(${$type})) {
echo "Unable to find {$type} face file.\n";
}
}
}
$fonts = compact("normal", "bold", "italic", "bold_italic");
$entry = array();
// Copy the files to the font directory.
foreach ($fonts as $var => $src) {
if (is_null($src)) {
$entry[$var] = DOMPDF_FONT_DIR . mb_substr(basename($normal), 0, -4);
continue;
}
// Verify that the fonts exist and are readable
if (!is_readable($src)) {
throw new Exception("Requested font '{$src}' is not readable");
}
$dest = DOMPDF_FONT_DIR . basename($src);
if (!is_writeable(dirname($dest))) {
throw new Exception("Unable to write to destination '{$dest}'.");
}
echo "Copying {$src} to {$dest}...\n";
if (!copy($src, $dest)) {
throw new Exception("Unable to copy '{$src}' to '{$dest}'");
}
$entry_name = mb_substr($dest, 0, -4);
echo "Generating Adobe Font Metrics for {$entry_name}...\n";
$font_obj = Font::load($dest);
$font_obj->saveAdobeFontMetrics("{$entry_name}.ufm");
$entry[$var] = $entry_name;
}
// Store the fonts in the lookup table
$fontMetrics->setFontFamily($fontname, $entry);
// Save the changes
$fontMetrics->saveFontFamilies();
}
/**
* Renders the HTML to PDF
*/
public function render()
{
$this->saveLocale();
$logOutputFile = $this->options->getLogOutputFile();
if ($logOutputFile) {
if (!file_exists($logOutputFile) && is_writable(dirname($logOutputFile))) {
touch($logOutputFile);
}
$this->startTime = microtime(true);
ob_start();
}
$this->processHtml();
$this->css->apply_styles($this->tree);
// @page style rules : size, margins
$pageStyles = $this->css->get_page_styles();
$basePageStyle = $pageStyles["base"];
unset($pageStyles["base"]);
foreach ($pageStyles as $pageStyle) {
$pageStyle->inherit($basePageStyle);
}
if (is_array($basePageStyle->size)) {
$this->setPaper(array(0, 0, $basePageStyle->size[0], $basePageStyle->size[1]));
}
//TODO: We really shouldn't be doing this; properties were already set in the constructor. We should add Canvas methods to set the page size and orientation after instantiaion (see #1059).
$this->setCanvas(CanvasFactory::get_instance($this, $this->paperSize, $this->paperOrientation));
$this->fontMetrics->setCanvas($this->pdf);
if ($this->options->isFontSubsettingEnabled() && $this->pdf instanceof CPDF) {
foreach ($this->tree->get_frames() as $frame) {
$style = $frame->get_style();
$node = $frame->get_node();
// Handle text nodes
if ($node->nodeName === "#text") {
$this->getCanvas()->register_string_subset($style->font_family, $node->nodeValue);
continue;
}
// Handle generated content (list items)
if ($style->display === "list-item") {
$chars = ListBullet::get_counter_chars($style->list_style_type);
$this->getCanvas()->register_string_subset($style->font_family, $chars);
continue;
}
// Handle other generated content (pseudo elements)
// FIXME: This only captures the text of the stylesheet declaration,
// not the actual generated content, and forces all possible counter
// values. See notes in issue #750.
if ($frame->get_node()->nodeName == "dompdf_generated") {
// all possible counter values
$chars = ListBullet::get_counter_chars('decimal');
$this->getCanvas()->register_string_subset($style->font_family, $chars);
$chars = ListBullet::get_counter_chars('upper-alpha');
$this->getCanvas()->register_string_subset($style->font_family, $chars);
$chars = ListBullet::get_counter_chars('lower-alpha');
$this->getCanvas()->register_string_subset($style->font_family, $chars);
$chars = ListBullet::get_counter_chars('lower-greek');
$this->getCanvas()->register_string_subset($style->font_family, $chars);
// the text of the stylesheet declaration
$this->getCanvas()->register_string_subset($style->font_family, $style->content);
continue;
}
}
}
$root = null;
foreach ($this->tree->get_frames() as $frame) {
// Set up the root frame
if (is_null($root)) {
$root = Factory::decorate_root($this->tree->get_root(), $this);
continue;
}
// Create the appropriate decorators, reflowers & positioners.
Factory::decorate_frame($frame, $this, $root);
}
// Add meta information
$title = $this->dom->getElementsByTagName("title");
if ($title->length) {
$this->getCanvas()->add_info("Title", trim($title->item(0)->nodeValue));
}
$metas = $this->dom->getElementsByTagName("meta");
$labels = array("author" => "Author", "keywords" => "Keywords", "description" => "Subject");
foreach ($metas as $meta) {
$name = mb_strtolower($meta->getAttribute("name"));
$value = trim($meta->getAttribute("content"));
if (isset($labels[$name])) {
$this->pdf->add_info($labels[$name], $value);
continue;
}
if ($name === "dompdf.view" && $this->parseDefaultView($value)) {
$this->getCanvas()->set_default_view($this->defaultView, $this->defaultViewOptions);
}
}
$root->set_containing_block(0, 0, $this->getCanvas()->get_width(), $this->getCanvas()->get_height());
$root->set_renderer(new Renderer($this));
// This is where the magic happens:
$root->reflow();
// Clean up cached images
Cache::clear();
global $_dompdf_warnings, $_dompdf_show_warnings;
if ($_dompdf_show_warnings && isset($_dompdf_warnings)) {
echo '<b>Dompdf Warnings</b><br><pre>';
foreach ($_dompdf_warnings as $msg) {
echo $msg . "\n";
}
if (strtolower($this->options->getPdfBackend()) == "cpdf") {
echo $this->getCanvas()->get_cpdf()->messages;
}
echo '</pre>';
flush();
}
$this->restoreLocale();
}
