/**
* Prepare the form objects
*
* @return void
*/
protected function prepareForms()
{
$formRefs = '';
foreach ($this->document->getForms() as $form) {
$i = $this->lastIndex() + 1;
$this->objects[$i] = Object\StreamObject::parse($form->getStream($i));
$formRefs .= $i . ' 0 R ';
}
$formRefs = substr($formRefs, 0, -1);
$this->root->setFormReferences($formRefs);
}
/**
* Parse the font data and create the font objects
*
* @throws Exception
* @return void
*/
public function parse()
{
if (null === $this->fontIndex || null === $this->fontObjectIndex || null === $this->fontDescIndex || null === $this->fontFileIndex) {
throw new Exception('Error: The font indices are not set');
}
if ($this->font instanceof Type1) {
$fontType = 'Type1';
$fontName = $this->font->info->postscriptName;
$fontFile = 'FontFile';
$glyphWidths = ['encoding' => 'StandardEncoding', 'widths' => $this->font->glyphWidths];
$unCompStream = $this->font->fontData;
$length1 = $this->font->length1;
$length2 = " /Length2 " . $this->font->length2 . " /Length3 0";
} else {
$fontType = 'TrueType';
$fontName = $this->font->tables['name']->postscriptName;
$fontFile = 'FontFile2';
$glyphWidths = $this->getGlyphWidths($this->font->tables['cmap']);
$unCompStream = $this->font->read();
$length1 = strlen($unCompStream);
$length2 = null;
}
$this->objects[$this->fontObjectIndex] = StreamObject::parse("{$this->fontObjectIndex} 0 obj\n<<\n /Type /Font\n /Subtype /{$fontType}\n /FontDescriptor " . $this->fontDescIndex . " 0 R\n /Name /TT{$this->fontIndex}\n /BaseFont /" . $fontName . "\n /FirstChar 32\n /LastChar 255\n /Widths [" . implode(' ', $glyphWidths['widths']) . "]\n /Encoding /" . $glyphWidths['encoding'] . "\n>>\nendobj\n\n");
$bBox = '[' . $this->font->bBox->xMin . ' ' . $this->font->bBox->yMin . ' ' . $this->font->bBox->xMax . ' ' . $this->font->bBox->yMax . ']';
if ($this->compression && function_exists('gzcompress')) {
$compStream = gzcompress($unCompStream, 9);
$fontFileObj = "{$this->fontFileIndex} 0 obj\n<</Length " . strlen($compStream) . " /Filter /FlateDecode /Length1 " . $length1 . $length2 . ">>\nstream\n" . $compStream . "\nendstream\nendobj\n\n";
} else {
$fontFileObj = "{$this->fontFileIndex} 0 obj\n<</Length " . strlen($unCompStream) . " /Length1 " . $length1 . $length2 . ">>\nstream\n" . $unCompStream . "\nendstream\nendobj\n\n";
}
$this->objects[$this->fontDescIndex] = StreamObject::parse("{$this->fontDescIndex} 0 obj\n<<\n /Type /FontDescriptor\n /FontName /" . $fontName . "\n /{$fontFile} {$this->fontFileIndex} 0 R\n /MissingWidth {$this->font->missingWidth}\n /StemV " . $this->font->stemV . "\n /Flags " . $this->font->calcFlags() . "\n /FontBBox {$bBox}\n /Descent " . $this->font->descent . "\n /Ascent {$this->font->ascent}\n /CapHeight " . $this->font->capHeight . "\n /ItalicAngle {$this->font->italicAngle}\n>>\nendobj\n\n");
$this->objects[$this->fontFileIndex] = StreamObject::parse($fontFileObj);
}
/**
* Parse the JPG image data
*
* @throws Exception
* @return void
*/
protected function parseJpeg()
{
// Add the image to the objects array.
$colorMode = strtolower($this->colorMode) == 'srgb' ? 'RGB' : $this->colorMode;
$colorSpace = $this->colorMode == 'CMYK' ? "/DeviceCMYK\n /Decode [1 0 1 0 1 0 1 0]" : "/Device" . $colorMode;
$this->objects[$this->index] = StreamObject::parse("{$this->index} 0 obj\n<<\n /Type /XObject\n /Subtype /Image\n /Width " . $this->width . "\n /Height " . $this->height . "\n /ColorSpace {$colorSpace}\n /BitsPerComponent 8\n " . "/Filter /DCTDecode\n /Length {$this->imageDataLength}\n>>\nstream\n{$this->imageData}\nendstream\nendobj\n");
}
