Pdf/Cmap/SegmentToDelta.php

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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
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 24593 2012-01-05 20:35:02Z matthew $

\Zend_Pdf_Cmap_SegmentToDelta
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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

Constants

 
                TYPE_BYTE_ENCODING
                = 0

inherited

Byte Encoding character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_BYTE_ENCODING

Inherited_from: \Zend_Pdf_Cmap::TYPE_BYTE_ENCODING

 
                TYPE_HIGH_BYTE_MAPPING
                = 2

inherited

High Byte Mapping character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_HIGH_BYTE_MAPPING

Inherited_from: \Zend_Pdf_Cmap::TYPE_HIGH_BYTE_MAPPING

 
                TYPE_SEGMENT_TO_DELTA
                = 4

inherited

Segment Value to Delta Mapping character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_SEGMENT_TO_DELTA

Inherited_from: \Zend_Pdf_Cmap::TYPE_SEGMENT_TO_DELTA

 
                TYPE_TRIMMED_TABLE
                = 6

inherited

Trimmed Table character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_TRIMMED_TABLE

Inherited_from: \Zend_Pdf_Cmap::TYPE_TRIMMED_TABLE

 
                TYPE_MIXED_COVERAGE
                = 8

inherited

Mixed Coverage character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_MIXED_COVERAGE

Inherited_from: \Zend_Pdf_Cmap::TYPE_MIXED_COVERAGE

 
                TYPE_TRIMMED_ARRAY
                = 10

inherited

Trimmed Array character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_TRIMMED_ARRAY

Inherited_from: \Zend_Pdf_Cmap::TYPE_TRIMMED_ARRAY

 
                TYPE_SEGMENTED_COVERAGE
                = 12

inherited

Segmented Coverage character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_SEGMENTED_COVERAGE

Inherited_from: \Zend_Pdf_Cmap::TYPE_SEGMENTED_COVERAGE

 
                TYPE_BYTE_ENCODING_STATIC
                = 241

inherited

Static Byte Encoding character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_BYTE_ENCODING_STATIC

Variant of TYPE_BYTEENCODING.

Inherited_from: \Zend_Pdf_Cmap::TYPE_BYTE_ENCODING_STATIC

 
                TYPE_UNKNOWN
                = 255

inherited

Unknown character map table type.

Inherited from: \Zend_Pdf_Cmap::TYPE_UNKNOWN

Inherited_from: \Zend_Pdf_Cmap::TYPE_UNKNOWN

 
                MISSING_CHARACTER_GLYPH
                = 0

inherited

Glyph representing missing characters.

Inherited from: \Zend_Pdf_Cmap::MISSING_CHARACTER_GLYPH

Inherited_from: \Zend_Pdf_Cmap::MISSING_CHARACTER_GLYPH

Properties

array $_glyphIndexArray = array()

Glyph index array.

Stores glyph numbers, used with range offset.

Default valuearray()Details

Type: array

integer $_searchIterations = 0

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

Default value0Details

Type: integer

integer $_searchRange = 0

The size of the binary search range for segments.

Default value0Details

Type: integer

integer $_searchRangeEndCode = 0

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

Default value0Details

Type: integer

integer $_segmentCount = 0

The number of segments in the table.

Default value0Details

Type: integer

array $_segmentTableEndCodes = array()

Array of ending character codes for each segment.

Default valuearray()Details

Type: array

array $_segmentTableIdDeltas = array()

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

Default valuearray()Details

Type: array

array $_segmentTableIdRangeOffsets = array()

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

Default valuearray()Details

Type: array

array $_segmentTableStartCodes = array()

Array of starting character codes for each segment.

Default valuearray()Details

Type: array

Methods

__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

_extractInt2(string $data, integer $index) : integer

inherited

Extracts a signed 2-byte integer from a string.

Inherited from: \Zend_Pdf_Cmap::_extractInt2()

Integers are always big-endian. Throws an exception if the index is out of range.

Parameters

Name	Type	Description
$data	string	&$data
$index	integer	Position in string of integer.

Returns

Type	Description
integer

Throws

Exception	Description
\Zend_Pdf_Exception

_extractUInt2(string $data, integer $index) : integer

inherited

Extracts an unsigned 2-byte integer from a string.

Inherited from: \Zend_Pdf_Cmap::_extractUInt2()

Integers are always big-endian. Throws an exception if the index is out of range.

Parameters

Name	Type	Description
$data	string	&$data
$index	integer	Position in string of integer.

Returns

Type	Description
integer

Throws

Exception	Description
\Zend_Pdf_Exception

_extractUInt4(string $data, integer $index) : integer

inherited

Extracts an unsigned 4-byte integer from a string.

Inherited from: \Zend_Pdf_Cmap::_extractUInt4()

Integers are always big-endian. Throws an exception if the index is out of range.

NOTE: If you ask for a 4-byte unsigned integer on a 32-bit machine, the resulting value WILL BE SIGNED because PHP uses signed integers internally for everything. To guarantee portability, be sure to use bitwise or similar operators on large integers!

Parameters

Name	Type	Description
$data	string	&$data
$index	integer	Position in string of integer.

Returns

Type	Description
integer

Throws

Exception	Description
\Zend_Pdf_Exception

cmapWithTypeData(integer $cmapType, mixed $cmapData) : \Zend_Pdf_Cmap

staticinherited

Instantiates the appropriate concrete subclass based on the type of cmap table and returns the instance.

Inherited from: \Zend_Pdf_Cmap::cmapWithTypeData()

The cmap type must be one of the following values:

Throws an exception if the table type is invalid or the cmap table data cannot be validated.

Parameters

Name	Type	Description
$cmapType	integer	Type of cmap.
$cmapData	mixed	Cmap table data. Usually a string or array.

Returns

Type	Description
\Zend_Pdf_Cmap

Throws

Exception	Description
\Zend_Pdf_Exception

getCoveredCharacters() : array

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

Returns

Type	Description
array	Unicode character codes.

glyphNumberForCharacter(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 glyphNumbersForCharacters() which is optimized for bulk operations.

Parameters

Name	Type	Description
$characterCode	integer	Unicode character code (code point).

Returns

Type	Description
integer	Glyph number.

glyphNumbersForCharacters(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.

Pdf/Cmap/SegmentToDelta.php

\Zend_Pdf_Cmap_SegmentToDeltajump to top

Constants

Properties

Methods

\Zend_Pdf_Cmap_SegmentToDelta
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