API Documentation

Zend/Pdf/Cmap/SegmentToDelta.php

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Zend Framework

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Category
Zend  
Copyright
Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  
Package
Zend_Pdf  
Subpackage
Fonts  
Version
$Id: SegmentToDelta.php 24594 2012-01-05 21:27:01Z matthew $  

\Zend_Pdf_Cmap_SegmentToDelta

Package: Zend\Pdf\Fonts

Implements the "segment mapping to delta values" character map (type 4).

This is the Microsoft standard mapping table type for OpenType fonts. It provides the ability to cover multiple contiguous ranges of the Unicode character set, with the exception of Unicode Surrogates (U+D800 - U+DFFF).

Parent(s)
\Zend_Pdf_Cmap
Copyright
Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)  
License
New BSD License  

Properties

Propertyprotectedarray  $_glyphIndexArray= 'array()'

Glyph index array. Stores glyph numbers, used with range offset.

Default valuearray()Details
Type
array
Propertyprotectedinteger  $_searchIterations= '0'

The number of binary search steps required to cover the entire search range.

Default value0Details
Type
integer
Propertyprotectedinteger  $_searchRange= '0'

The size of the binary search range for segments.

Default value0Details
Type
integer
Propertyprotectedinteger  $_searchRangeEndCode= '0'

The ending character code for the segment at the end of the low search range.

Default value0Details
Type
integer
Propertyprotectedinteger  $_segmentCount= '0'

The number of segments in the table.

Default value0Details
Type
integer
Propertyprotectedarray  $_segmentTableEndCodes= 'array()'

Array of ending character codes for each segment.

Default valuearray()Details
Type
array
Propertyprotectedarray  $_segmentTableIdDeltas= 'array()'

Array of character code to glyph delta values for each segment.

Default valuearray()Details
Type
array
Propertyprotectedarray  $_segmentTableIdRangeOffsets= 'array()'

Array of offsets into the glyph index array for each segment.

Default valuearray()Details
Type
array
Propertyprotectedarray  $_segmentTableStartCodes= 'array()'

Array of starting character codes for each segment.

Default valuearray()Details
Type
array

Methods

methodpublic__construct( string $cmapData ) : void

Object constructor

Parses the raw binary table data. Throws an exception if the table is malformed.

Parameters
Name Type Description
$cmapData string

Raw binary cmap table data.

Throws
Exception Description
\Zend_Pdf_Exception
methodpublicgetCoveredCharacters( ) : array

Returns an array containing the Unicode characters that have entries in this character map.

Returns
Type Description
array Unicode character codes.
methodpublicglyphNumberForCharacter( integer $characterCode ) : integer

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.

Parameters
Name Type Description
$characterCode integer

Unicode character code (code point).

Returns
Type Description
integer Glyph number.
methodpublicglyphNumbersForCharacters( array $characterCodes ) : array

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()}.

Parameters
Name Type Description
$characterCodes array

Array of Unicode character codes (code points).

Returns
Type Description
array Array of glyph numbers.
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