You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
530 lines
15 KiB
530 lines
15 KiB
<?php
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* If you did not receive a copy of the license and are unable to
|
|
* obtain it through the world-wide-web, please send an email
|
|
* to license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Pdf
|
|
* @subpackage Fonts
|
|
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id$
|
|
*/
|
|
|
|
/** Zend_Pdf_Resource */
|
|
// require_once 'Zend/Pdf/Resource.php';
|
|
|
|
/**
|
|
* Zend_Pdf_Font
|
|
*
|
|
* Zend_Pdf_Font class constants are used within Zend_Pdf_Resource_Font
|
|
* and its subclusses.
|
|
*/
|
|
// require_once 'Zend/Pdf/Font.php';
|
|
|
|
/**
|
|
* Abstract class which manages PDF fonts.
|
|
*
|
|
* Defines the public interface and creates shared storage for concrete
|
|
* subclasses which are responsible for generating the font's information
|
|
* dictionaries, mapping characters to glyphs, and providing both overall font
|
|
* and glyph-specific metric data.
|
|
*
|
|
* Font objects should be normally be obtained from the factory methods
|
|
* {@link Zend_Pdf_Font::fontWithName} and {@link Zend_Pdf_Font::fontWithPath}.
|
|
*
|
|
* @package Zend_Pdf
|
|
* @subpackage Fonts
|
|
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
abstract class Zend_Pdf_Resource_Font extends Zend_Pdf_Resource
|
|
{
|
|
/**** Instance Variables ****/
|
|
|
|
|
|
/**
|
|
* The type of font. Use TYPE_ constants defined in {@link Zend_Pdf_Font}.
|
|
* @var integer
|
|
*/
|
|
protected $_fontType = Zend_Pdf_Font::TYPE_UNKNOWN;
|
|
|
|
/**
|
|
* Array containing descriptive names for the font. See {@link fontName()}.
|
|
* @var array
|
|
*/
|
|
protected $_fontNames = array();
|
|
|
|
/**
|
|
* Flag indicating whether or not this font is bold.
|
|
* @var boolean
|
|
*/
|
|
protected $_isBold = false;
|
|
|
|
/**
|
|
* Flag indicating whether or not this font is italic.
|
|
* @var boolean
|
|
*/
|
|
protected $_isItalic = false;
|
|
|
|
/**
|
|
* Flag indicating whether or not this font is monospaced.
|
|
* @var boolean
|
|
*/
|
|
protected $_isMonospace = false;
|
|
|
|
/**
|
|
* The position below the text baseline of the underline (in glyph units).
|
|
* @var integer
|
|
*/
|
|
protected $_underlinePosition = 0;
|
|
|
|
/**
|
|
* The thickness of the underline (in glyph units).
|
|
* @var integer
|
|
*/
|
|
protected $_underlineThickness = 0;
|
|
|
|
/**
|
|
* The position above the text baseline of the strikethrough (in glyph units).
|
|
* @var integer
|
|
*/
|
|
protected $_strikePosition = 0;
|
|
|
|
/**
|
|
* The thickness of the strikethrough (in glyph units).
|
|
* @var integer
|
|
*/
|
|
protected $_strikeThickness = 0;
|
|
|
|
/**
|
|
* Number of glyph units per em. See {@link getUnitsPerEm()}.
|
|
* @var integer
|
|
*/
|
|
protected $_unitsPerEm = 0;
|
|
|
|
/**
|
|
* Typographical ascent. See {@link getAscent()}.
|
|
* @var integer
|
|
*/
|
|
protected $_ascent = 0;
|
|
|
|
/**
|
|
* Typographical descent. See {@link getDescent()}.
|
|
* @var integer
|
|
*/
|
|
protected $_descent = 0;
|
|
|
|
/**
|
|
* Typographical line gap. See {@link getLineGap()}.
|
|
* @var integer
|
|
*/
|
|
protected $_lineGap = 0;
|
|
|
|
|
|
|
|
/**** Public Interface ****/
|
|
|
|
|
|
/* Object Lifecycle */
|
|
|
|
/**
|
|
* Object constructor.
|
|
*
|
|
*/
|
|
public function __construct()
|
|
{
|
|
parent::__construct(new Zend_Pdf_Element_Dictionary());
|
|
$this->_resource->Type = new Zend_Pdf_Element_Name('Font');
|
|
}
|
|
|
|
|
|
/* Object Magic Methods */
|
|
|
|
/**
|
|
* Returns the full name of the font in the encoding method of the current
|
|
* locale. Transliterates any characters that cannot be naturally
|
|
* represented in that character set.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function __toString()
|
|
{
|
|
return $this->getFontName(Zend_Pdf_Font::NAME_FULL, '', '//TRANSLIT');
|
|
}
|
|
|
|
|
|
/* Accessors */
|
|
|
|
/**
|
|
* Returns the type of font.
|
|
*
|
|
* @return integer One of the TYPE_ constants defined in
|
|
* {@link Zend_Pdf_Font}.
|
|
*/
|
|
public function getFontType()
|
|
{
|
|
return $this->_fontType;
|
|
}
|
|
|
|
/**
|
|
* Returns the specified descriptive name for the font.
|
|
*
|
|
* The font name type is usually one of the following:
|
|
* <ul>
|
|
* <li>{@link Zend_Pdf_Font::NAME_FULL}
|
|
* <li>{@link Zend_Pdf_Font::NAME_FAMILY}
|
|
* <li>{@link Zend_Pdf_Font::NAME_PREFERRED_FAMILY}
|
|
* <li>{@link Zend_Pdf_Font::NAME_STYLE}
|
|
* <li>{@link Zend_Pdf_Font::NAME_PREFERRED_STYLE}
|
|
* <li>{@link Zend_Pdf_Font::NAME_DESCRIPTION}
|
|
* <li>{@link Zend_Pdf_Font::NAME_SAMPLE_TEXT}
|
|
* <li>{@link Zend_Pdf_Font::NAME_ID}
|
|
* <li>{@link Zend_Pdf_Font::NAME_VERSION}
|
|
* <li>{@link Zend_Pdf_Font::NAME_POSTSCRIPT}
|
|
* <li>{@link Zend_Pdf_Font::NAME_CID_NAME}
|
|
* <li>{@link Zend_Pdf_Font::NAME_DESIGNER}
|
|
* <li>{@link Zend_Pdf_Font::NAME_DESIGNER_URL}
|
|
* <li>{@link Zend_Pdf_Font::NAME_MANUFACTURER}
|
|
* <li>{@link Zend_Pdf_Font::NAME_VENDOR_URL}
|
|
* <li>{@link Zend_Pdf_Font::NAME_COPYRIGHT}
|
|
* <li>{@link Zend_Pdf_Font::NAME_TRADEMARK}
|
|
* <li>{@link Zend_Pdf_Font::NAME_LICENSE}
|
|
* <li>{@link Zend_Pdf_Font::NAME_LICENSE_URL}
|
|
* </ul>
|
|
*
|
|
* Note that not all names are available for all fonts. In addition, some
|
|
* fonts may contain additional names, whose indicies are in the range
|
|
* 256 to 32767 inclusive, which are used for certain font layout features.
|
|
*
|
|
* If the preferred language translation is not available, uses the first
|
|
* available translation for the name, which is usually English.
|
|
*
|
|
* If the requested name does not exist, returns null.
|
|
*
|
|
* All names are stored internally as Unicode strings, using UTF-16BE
|
|
* encoding. You may optionally supply a different resulting character set.
|
|
*
|
|
* @param integer $nameType Type of name requested.
|
|
* @param mixed $language Preferred language (string) or array of languages
|
|
* in preferred order. Use the ISO 639 standard 2-letter language codes.
|
|
* @param string $characterSet (optional) Desired resulting character set.
|
|
* You may use any character set supported by {@link iconv()};
|
|
* @return string
|
|
*/
|
|
public function getFontName($nameType, $language, $characterSet = null)
|
|
{
|
|
if (! isset($this->_fontNames[$nameType])) {
|
|
return null;
|
|
}
|
|
$name = null;
|
|
if (is_array($language)) {
|
|
foreach ($language as $code) {
|
|
if (isset($this->_fontNames[$nameType][$code])) {
|
|
$name = $this->_fontNames[$nameType][$code];
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
if (isset($this->_fontNames[$nameType][$language])) {
|
|
$name = $this->_fontNames[$nameType][$language];
|
|
}
|
|
}
|
|
/* If the preferred language could not be found, use whatever is first.
|
|
*/
|
|
if ($name === null) {
|
|
$names = $this->_fontNames[$nameType];
|
|
$name = reset($names);
|
|
}
|
|
/* Convert the character set if requested.
|
|
*/
|
|
if (($characterSet !== null) && ($characterSet != 'UTF-16BE') && PHP_OS != 'AIX') { // AIX knows not this charset
|
|
$name = iconv('UTF-16BE', $characterSet, $name);
|
|
}
|
|
return $name;
|
|
}
|
|
|
|
/**
|
|
* Returns whole set of font names.
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getFontNames()
|
|
{
|
|
return $this->_fontNames;
|
|
}
|
|
|
|
/**
|
|
* Returns true if font is bold.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function isBold()
|
|
{
|
|
return $this->_isBold;
|
|
}
|
|
|
|
/**
|
|
* Returns true if font is italic.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function isItalic()
|
|
{
|
|
return $this->_isItalic;
|
|
}
|
|
|
|
/**
|
|
* Returns true if font is monospace.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function isMonospace()
|
|
{
|
|
return $this->_isMonospace;
|
|
}
|
|
|
|
/**
|
|
* Returns the suggested position below the text baseline of the underline
|
|
* in glyph units.
|
|
*
|
|
* This value is usually negative.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getUnderlinePosition()
|
|
{
|
|
return $this->_underlinePosition;
|
|
}
|
|
|
|
/**
|
|
* Returns the suggested line thickness of the underline in glyph units.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getUnderlineThickness()
|
|
{
|
|
return $this->_underlineThickness;
|
|
}
|
|
|
|
/**
|
|
* Returns the suggested position above the text baseline of the
|
|
* strikethrough in glyph units.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getStrikePosition()
|
|
{
|
|
return $this->_strikePosition;
|
|
}
|
|
|
|
/**
|
|
* Returns the suggested line thickness of the strikethrough in glyph units.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getStrikeThickness()
|
|
{
|
|
return $this->_strikeThickness;
|
|
}
|
|
|
|
/**
|
|
* Returns the number of glyph units per em.
|
|
*
|
|
* Used to convert glyph space to user space. Frequently used in conjunction
|
|
* with {@link widthsForGlyphs()} to calculate the with of a run of text.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getUnitsPerEm()
|
|
{
|
|
return $this->_unitsPerEm;
|
|
}
|
|
|
|
/**
|
|
* Returns the typographic ascent in font glyph units.
|
|
*
|
|
* The typographic ascent is the distance from the font's baseline to the
|
|
* top of the text frame. It is frequently used to locate the initial
|
|
* baseline for a paragraph of text inside a given rectangle.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getAscent()
|
|
{
|
|
return $this->_ascent;
|
|
}
|
|
|
|
/**
|
|
* Returns the typographic descent in font glyph units.
|
|
*
|
|
* The typographic descent is the distance below the font's baseline to the
|
|
* bottom of the text frame. It is always negative.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getDescent()
|
|
{
|
|
return $this->_descent;
|
|
}
|
|
|
|
/**
|
|
* Returns the typographic line gap in font glyph units.
|
|
*
|
|
* The typographic line gap is the distance between the bottom of the text
|
|
* frame of one line to the top of the text frame of the next. It is
|
|
* typically combined with the typographical ascent and descent to determine
|
|
* the font's total line height (or leading).
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getLineGap()
|
|
{
|
|
return $this->_lineGap;
|
|
}
|
|
|
|
/**
|
|
* Returns the suggested line height (or leading) in font glyph units.
|
|
*
|
|
* This value is determined by adding together the values of the typographic
|
|
* ascent, descent, and line gap. This value yields the suggested line
|
|
* spacing as determined by the font developer.
|
|
*
|
|
* It should be noted that this is only a guideline; layout engines will
|
|
* frequently modify this value to achieve special effects such as double-
|
|
* spacing.
|
|
*
|
|
* @return integer
|
|
*/
|
|
public function getLineHeight()
|
|
{
|
|
return $this->_ascent - $this->_descent + $this->_lineGap;
|
|
}
|
|
|
|
|
|
/* Information and Conversion Methods */
|
|
|
|
/**
|
|
* Returns an array of glyph numbers corresponding to the Unicode characters.
|
|
*
|
|
* If a particular character doesn't exist in this font, the special 'missing
|
|
* character glyph' will be substituted.
|
|
*
|
|
* See also {@link glyphNumberForCharacter()}.
|
|
*
|
|
* @param array $characterCodes Array of Unicode character codes (code points).
|
|
* @return array Array of glyph numbers.
|
|
*/
|
|
abstract public function glyphNumbersForCharacters($characterCodes);
|
|
|
|
/**
|
|
* Returns the glyph number corresponding to the Unicode character.
|
|
*
|
|
* If a particular character doesn't exist in this font, the special 'missing
|
|
* character glyph' will be substituted.
|
|
*
|
|
* See also {@link glyphNumbersForCharacters()} which is optimized for bulk
|
|
* operations.
|
|
*
|
|
* @param integer $characterCode Unicode character code (code point).
|
|
* @return integer Glyph number.
|
|
*/
|
|
abstract public function glyphNumberForCharacter($characterCode);
|
|
|
|
/**
|
|
* Returns a number between 0 and 1 inclusive that indicates the percentage
|
|
* of characters in the string which are covered by glyphs in this font.
|
|
*
|
|
* Since no one font will contain glyphs for the entire Unicode character
|
|
* range, this method can be used to help locate a suitable font when the
|
|
* actual contents of the string are not known.
|
|
*
|
|
* Note that some fonts lie about the characters they support. Additionally,
|
|
* fonts don't usually contain glyphs for control characters such as tabs
|
|
* and line breaks, so it is rare that you will get back a full 1.0 score.
|
|
* The resulting value should be considered informational only.
|
|
*
|
|
* @param string $string
|
|
* @param string $charEncoding (optional) Character encoding of source text.
|
|
* If omitted, uses 'current locale'.
|
|
* @return float
|
|
*/
|
|
abstract public function getCoveredPercentage($string, $charEncoding = '');
|
|
|
|
/**
|
|
* Returns the widths of the glyphs.
|
|
*
|
|
* The widths are expressed in the font's glyph space. You are responsible
|
|
* for converting to user space as necessary. See {@link unitsPerEm()}.
|
|
*
|
|
* See also {@link widthForGlyph()}.
|
|
*
|
|
* @param array $glyphNumbers Array of glyph numbers.
|
|
* @return array Array of glyph widths (integers).
|
|
* @throws Zend_Pdf_Exception
|
|
*/
|
|
abstract public function widthsForGlyphs($glyphNumbers);
|
|
|
|
/**
|
|
* Returns the width of the glyph.
|
|
*
|
|
* Like {@link widthsForGlyphs()} but used for one glyph at a time.
|
|
*
|
|
* @param integer $glyphNumber
|
|
* @return integer
|
|
* @throws Zend_Pdf_Exception
|
|
*/
|
|
abstract public function widthForGlyph($glyphNumber);
|
|
|
|
/**
|
|
* Convert string to the font encoding.
|
|
*
|
|
* The method is used to prepare string for text drawing operators
|
|
*
|
|
* @param string $string
|
|
* @param string $charEncoding Character encoding of source text.
|
|
* @return string
|
|
*/
|
|
abstract public function encodeString($string, $charEncoding);
|
|
|
|
/**
|
|
* Convert string from the font encoding.
|
|
*
|
|
* The method is used to convert strings retrieved from existing content streams
|
|
*
|
|
* @param string $string
|
|
* @param string $charEncoding Character encoding of resulting text.
|
|
* @return string
|
|
*/
|
|
abstract public function decodeString($string, $charEncoding);
|
|
|
|
|
|
|
|
/**** Internal Methods ****/
|
|
|
|
|
|
/**
|
|
* If the font's glyph space is not 1000 units per em, converts the value.
|
|
*
|
|
* @internal
|
|
* @param integer $value
|
|
* @return integer
|
|
*/
|
|
public function toEmSpace($value)
|
|
{
|
|
if ($this->_unitsPerEm == 1000) {
|
|
return $value;
|
|
}
|
|
return ceil(($value / $this->_unitsPerEm) * 1000); // always round up
|
|
}
|
|
}
|
|
|