/**
* Reads and parses the TrueType font data from the file on disk.
*/
public function parse()
{
if ($this->_isParsed) {
return;
}
parent::parse();
/* There is nothing additional to parse for TrueType fonts at this time.
*/
$this->_isParsed = true;
}
/**
* Object constructor
*
* @param \ZendPdf\BinaryParser\Font\OpenType\AbstractOpenType $fontParser Font parser object containing OpenType file.
* @throws \ZendPdf\Exception\ExceptionInterface
*/
public function __construct(OpenTypeFontParser\AbstractOpenType $fontParser)
{
parent::__construct();
$fontParser->parse();
/* Object properties */
$this->_fontNames = $fontParser->names;
$this->_isBold = $fontParser->isBold;
$this->_isItalic = $fontParser->isItalic;
$this->_isMonospaced = $fontParser->isMonospaced;
$this->_underlinePosition = $fontParser->underlinePosition;
$this->_underlineThickness = $fontParser->underlineThickness;
$this->_strikePosition = $fontParser->strikePosition;
$this->_strikeThickness = $fontParser->strikeThickness;
$this->_unitsPerEm = $fontParser->unitsPerEm;
$this->_ascent = $fontParser->ascent;
$this->_descent = $fontParser->descent;
$this->_lineGap = $fontParser->lineGap;
$this->_glyphWidths = $fontParser->glyphWidths;
$this->_missingGlyphWidth = $this->_glyphWidths[0];
$this->_cmap = $fontParser->cmap;
/* Resource dictionary */
$baseFont = $this->getFontName(Pdf\Font::NAME_POSTSCRIPT, 'en', 'UTF-8');
$this->_resource->BaseFont = new InternalType\NameObject($baseFont);
$this->_resource->FirstChar = new InternalType\NumericObject(0);
$this->_resource->LastChar = new InternalType\NumericObject(count($this->_glyphWidths) - 1);
/* Now convert the scalar glyph widths to \ZendPdf\InternalType\NumericObect objects.
*/
$pdfWidths = array();
foreach ($this->_glyphWidths as $width) {
$pdfWidths[] = new InternalType\NumericObject($this->toEmSpace($width));
}
/* Create the \ZendPdf\InternalType\ArrayObject object and add it to the font's
* object factory and resource dictionary.
*/
$widthsArrayElement = new InternalType\ArrayObject($pdfWidths);
$widthsObject = $this->_objectFactory->newObject($widthsArrayElement);
$this->_resource->Widths = $widthsObject;
}
/**
* Object constructor
*
* @param \ZendPdf\BinaryParser\Font\OpenType\AbstractOpenType $fontParser Font parser object
* containing OpenType file.
* @param integer $embeddingOptions Options for font embedding.
* @throws \ZendPdf\Exception\ExceptionInterface
*/
public function __construct(Pdf\BinaryParser\Font\OpenType\AbstractOpenType $fontParser)
{
parent::__construct();
$fontParser->parse();
/* Object properties */
$this->_fontNames = $fontParser->names;
$this->_isBold = $fontParser->isBold;
$this->_isItalic = $fontParser->isItalic;
$this->_isMonospaced = $fontParser->isMonospaced;
$this->_underlinePosition = $fontParser->underlinePosition;
$this->_underlineThickness = $fontParser->underlineThickness;
$this->_strikePosition = $fontParser->strikePosition;
$this->_strikeThickness = $fontParser->strikeThickness;
$this->_unitsPerEm = $fontParser->unitsPerEm;
$this->_ascent = $fontParser->ascent;
$this->_descent = $fontParser->descent;
$this->_lineGap = $fontParser->lineGap;
$this->_cmap = $fontParser->cmap;
/* Resource dictionary */
$baseFont = $this->getFontName(Pdf\Font::NAME_POSTSCRIPT, 'en', 'UTF-8');
$this->_resource->BaseFont = new InternalType\NameObject($baseFont);
/**
* Prepare widths array.
*/
/* Constract characters widths array using font CMap and glyphs widths array */
$glyphWidths = $fontParser->glyphWidths;
$charGlyphs = $this->_cmap->getCoveredCharactersGlyphs();
$charWidths = array();
foreach ($charGlyphs as $charCode => $glyph) {
$charWidths[$charCode] = $glyphWidths[$glyph];
}
$this->_charWidths = $charWidths;
$this->_missingCharWidth = $glyphWidths[0];
/* Width array optimization. Step1: extract default value */
$widthFrequencies = array_count_values($charWidths);
$defaultWidth = null;
$defaultWidthFrequency = -1;
foreach ($widthFrequencies as $width => $frequency) {
if ($frequency > $defaultWidthFrequency) {
$defaultWidth = $width;
$defaultWidthFrequency = $frequency;
}
}
// Store default value in the font dictionary
$this->_resource->DW = new InternalType\NumericObject($this->toEmSpace($defaultWidth));
// Remove characters which corresponds to default width from the widths array
$defWidthChars = array_keys($charWidths, $defaultWidth);
foreach ($defWidthChars as $charCode) {
unset($charWidths[$charCode]);
}
// Order cheracter widths aray by character codes
ksort($charWidths, SORT_NUMERIC);
/* Width array optimization. Step2: Compact character codes sequences */
$lastCharCode = -1;
$widthsSequences = array();
foreach ($charWidths as $charCode => $width) {
if ($lastCharCode == -1) {
$charCodesSequense = array();
$sequenceStartCode = $charCode;
} elseif ($charCode != $lastCharCode + 1) {
// New chracters sequence detected
$widthsSequences[$sequenceStartCode] = $charCodesSequense;
$charCodesSequense = array();
$sequenceStartCode = $charCode;
}
$charCodesSequense[] = $width;
$lastCharCode = $charCode;
}
// Save last sequence, if widths array is not empty (it may happens for monospaced fonts)
if (count($charWidths) != 0) {
$widthsSequences[$sequenceStartCode] = $charCodesSequense;
}
$pdfCharsWidths = array();
foreach ($widthsSequences as $startCode => $widthsSequence) {
/* Width array optimization. Step3: Compact widths sequences */
$pdfWidths = array();
$lastWidth = -1;
$widthsInSequence = 0;
foreach ($widthsSequence as $width) {
if ($lastWidth != $width) {
// New width is detected
if ($widthsInSequence != 0) {
// Previous width value was a part of the widths sequence. Save it as 'c_1st c_last w'.
$pdfCharsWidths[] = new InternalType\NumericObject($startCode);
// First character code
$pdfCharsWidths[] = new InternalType\NumericObject($startCode + $widthsInSequence - 1);
// Last character code
$pdfCharsWidths[] = new InternalType\NumericObject($this->toEmSpace($lastWidth));
// Width
// Reset widths sequence
$startCode = $startCode + $widthsInSequence;
$widthsInSequence = 0;
}
// Collect new width
$pdfWidths[] = new InternalType\NumericObject($this->toEmSpace($width));
$lastWidth = $width;
} else {
// Width is equal to previous
if (count($pdfWidths) != 0) {
// We already have some widths collected
// So, we've just detected new widths sequence
// Remove last element from widths list, since it's a part of widths sequence
array_pop($pdfWidths);
// and write the rest if it's not empty
if (count($pdfWidths) != 0) {
// Save it as 'c_1st [w1 w2 ... wn]'.
$pdfCharsWidths[] = new InternalType\NumericObject($startCode);
// First character code
$pdfCharsWidths[] = new InternalType\ArrayObject($pdfWidths);
// Widths array
// Reset widths collection
$startCode += count($pdfWidths);
$pdfWidths = array();
}
$widthsInSequence = 2;
} else {
// Continue widths sequence
$widthsInSequence++;
}
}
}
// Check if we have widths collection or widths sequence to wite it down
if (count($pdfWidths) != 0) {
// We have some widths collected
// Save it as 'c_1st [w1 w2 ... wn]'.
$pdfCharsWidths[] = new InternalType\NumericObject($startCode);
// First character code
$pdfCharsWidths[] = new InternalType\ArrayObject($pdfWidths);
// Widths array
} elseif ($widthsInSequence != 0) {
// We have widths sequence
// Save it as 'c_1st c_last w'.
$pdfCharsWidths[] = new InternalType\NumericObject($startCode);
// First character code
$pdfCharsWidths[] = new InternalType\NumericObject($startCode + $widthsInSequence - 1);
// Last character code
$pdfCharsWidths[] = new InternalType\NumericObject($this->toEmSpace($lastWidth));
// Width
}
}
/* Create the \ZendPdf\InternalType\ArrayObject object and add it to the font's
* object factory and resource dictionary.
*/
$widthsArrayElement = new InternalType\ArrayObject($pdfCharsWidths);
$widthsObject = $this->_objectFactory->newObject($widthsArrayElement);
$this->_resource->W = $widthsObject;
/* CIDSystemInfo dictionary */
$cidSystemInfo = new InternalType\DictionaryObject();
$cidSystemInfo->Registry = new InternalType\StringObject('Adobe');
$cidSystemInfo->Ordering = new InternalType\StringObject('UCS');
$cidSystemInfo->Supplement = new InternalType\NumericObject(0);
$cidSystemInfoObject = $this->_objectFactory->newObject($cidSystemInfo);
$this->_resource->CIDSystemInfo = $cidSystemInfoObject;
}
