/**
* Returns a {@link Zend_Pdf_Resource_Font} object by file path.
*
* The result of this method is cached, preventing unnecessary duplication
* of font objects. Repetitive calls for the font with the same path will
* return the same object.
*
* The $embeddingOptions parameter allows you to set certain flags related
* to font embedding. You may combine options by OR-ing them together. See
* the EMBED_ constants defined in {@link Zend_Pdf_Font} for the list of
* available options and their descriptions. Note that this value is only
* used when creating a font for the first time. If a font with the same
* name already exists, you will get that object and the options you specify
* here will be ignored. This is because fonts are only embedded within the
* PDF file once.
*
* If the file path supplied does not match the path of a previously
* instantiated object or the font type cannot be determined, an exception
* will be thrown.
*
* @param string $filePath Full path to the font file.
* @param integer $embeddingOptions (optional) Options for font embedding.
* @return Zend_Pdf_Resource_Font
* @throws Zend_Pdf_Exception
*/
public static function fontWithPath($filePath, $embeddingOptions = 0)
{
/* First check the cache. Don't duplicate font objects.
*/
$filePathKey = md5($filePath);
if (isset(Zend_Pdf_Font::$_fontFilePaths[$filePathKey])) {
return Zend_Pdf_Font::$_fontFilePaths[$filePathKey];
}
/* Create a file parser data source object for this file. File path and
* access permission checks are handled here.
*/
$dataSource = new Zend_Pdf_FileParserDataSource_File($filePath);
/* Attempt to determine the type of font. We can't always trust file
* extensions, but try that first since it's fastest.
*/
$fileExtension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
/* If it turns out that the file is named improperly and we guess the
* wrong type, we'll get null instead of a font object.
*/
switch ($fileExtension) {
case 'ttf':
$font = Zend_Pdf_Font::_extractTrueTypeFont($dataSource, $embeddingOptions);
break;
default:
/* Unrecognized extension. Try to determine the type by actually
* parsing it below.
*/
$font = null;
break;
}
if ($font === null) {
/* There was no match for the file extension or the extension was
* wrong. Attempt to detect the type of font by actually parsing it.
* We'll do the checks in order of most likely format to try to
* reduce the detection time.
*/
// OpenType
// TrueType
if ($font === null && $fileExtension != 'ttf') {
$font = Zend_Pdf_Font::_extractTrueTypeFont($dataSource, $embeddingOptions);
}
// Type 1 PostScript
// Mac OS X dfont
// others?
}
/* Done with the data source object.
*/
$dataSource = null;
if ($font !== null) {
/* Parsing was successful. Add this font instance to the cache arrays
* and return it for use.
*/
$fontName = $font->getFontName(Zend_Pdf_Font::NAME_POSTSCRIPT, '', '');
Zend_Pdf_Font::$_fontNames[$fontName] = $font;
$filePathKey = md5($filePath);
Zend_Pdf_Font::$_fontFilePaths[$filePathKey] = $font;
return $font;
} else {
/* The type of font could not be determined. Give up.
*/
throw new Zend_Pdf_Exception("Cannot determine font type: {$filePath}", Zend_Pdf_Exception::CANT_DETERMINE_FONT_TYPE);
}
}
public static function fontWithPath($filePath, $embeddingOptions = 0)
{
$filePathKey = md5($filePath);
if (isset(Zend_Pdf_Font::$_fontFilePaths[$filePathKey])) {
return Zend_Pdf_Font::$_fontFilePaths[$filePathKey];
}
$dataSource = new Zend_Pdf_FileParserDataSource_File($filePath);
$fileExtension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
switch ($fileExtension) {
case 'ttf':
$font = Zend_Pdf_Font::_extractTrueTypeFont($dataSource, $embeddingOptions);
break;
default:
$font = null;
break;
}
if ($font === null) {
if ($font === null && $fileExtension != 'ttf') {
$font = Zend_Pdf_Font::_extractTrueTypeFont($dataSource, $embeddingOptions);
}
}
$dataSource = null;
if ($font !== null) {
$fontName = $font->getFontName(Zend_Pdf_Font::NAME_POSTSCRIPT, '', '');
Zend_Pdf_Font::$_fontNames[$fontName] = $font;
$filePathKey = md5($filePath);
Zend_Pdf_Font::$_fontFilePaths[$filePathKey] = $font;
return $font;
} else {
throw new Zend_Pdf_Exception("Cannot determine font type: {$filePath}", Zend_Pdf_Exception::CANT_DETERMINE_FONT_TYPE);
}
}
