private function createTextObject(ZendResourceFont $font, $text, $encoding)
{
return new StringObject($font->encodeString($text, $encoding));
}
/**
* @param string $text
* @param AnchorPath $p
* @param FontStyle $fontStyle
*
* @return mixed[]
* @throws \Exception
*/
private function preparePathText($text, AnchorPath $p, ZendAbstractFont $font, FontStyle $fontStyle)
{
$fontScale = $fontStyle->getSize() / (double) $font->getUnitsPerEm();
// split text into encoded characters and widths
$chars = [];
$widthSum = 0;
foreach (TextUtils::getCodes($text) as $code) {
$char = $font->encodeString(html_entity_decode('&#' . $code . ';', ENT_NOQUOTES, 'UTF-8'), 'UTF-8');
$width = $font->widthForGlyph($font->glyphNumberForCharacter($code));
$widthSum += $width;
$chars[] = [$char, $fontScale * $width];
}
// compute start position
switch ($fontStyle->getHAlign()) {
case FontStyle::HORIZONTAL_ALIGN_MIDDLE:
$startPos = ($p->getLen() - $fontScale * $widthSum) / 2.0;
break;
case FontStyle::HORIZONTAL_ALIGN_RIGHT:
$startPos = $p->getLen() - $fontScale * $widthSum;
break;
case FontStyle::HORIZONTAL_ALIGN_LEFT:
default:
$startPos = 0;
}
// compute vertical shift
switch ($fontStyle->getVAlign()) {
case FontStyle::VERTICAL_ALIGN_TOP:
$yShift = $fontScale * ($font->getAscent() - $font->getDescent());
break;
case FontStyle::VERTICAL_ALIGN_CENTRAL:
$yShift = 0.5 * $fontScale * $font->getAscent();
break;
case FontStyle::VERTICAL_ALIGN_BOTTOM:
$yShift = $fontScale * $font->getDescent();
break;
case FontStyle::VERTICAL_ALIGN_BASE:
default:
$yShift = 0;
}
return [$chars, $startPos, $yShift];
}
/**
* Draw a line of text at the specified position.
*
* @param string $text
* @param float $x
* @param float $y
* @param string $charEncoding (optional) Character encoding of source text.
* Defaults to current locale.
* @throws \ZendPdf\Exception\ExceptionInterface
* @return \ZendPdf\Page
*/
public function drawText($text, $x, $y, $charEncoding = '')
{
if ($this->_font === null) {
throw new Exception\LogicException('Font has not been set');
}
$this->_addProcSet('Text');
$textObj = new InternalType\StringObject($this->_font->encodeString($text, $charEncoding));
$xObj = new InternalType\NumericObject($x);
$yObj = new InternalType\NumericObject($y);
$this->_contents .= "BT\n" . $xObj->toString() . ' ' . $yObj->toString() . " Td\n" . $textObj->toString() . " Tj\n" . "ET\n";
return $this;
}
