Class Document
/**
* Resolve XRef to object.
*
* @param string $name
*
* @return Element|Object
* @throws \Exception
*/
protected function resolveXRef($name)
{
if (($obj = $this->elements[$name]) instanceof ElementXRef && !is_null($this->document)) {
/** @var ElementXRef $obj */
$object = $this->document->getObjectById($obj->getId());
if (is_null($object)) {
return null;
}
// Update elements list for future calls.
$this->elements[$name] = $object;
}
return $this->elements[$name];
}
/**
* Resolve XRef to object.
*
* @param string $name
*
* @return Element|Object
* @throws \Exception
*/
protected function resolveXRef($name)
{
if (($obj = $this->elements[$name]) instanceof ElementXRef && !is_null($this->document)) {
/** @var ElementXRef $obj */
$object = $this->document->getObjectById($obj->getId());
if (is_null($object)) {
throw new \Exception('Missing object reference #' . $obj->getId() . '.');
}
// Update elements list for future calls.
$this->elements[$name] = $object;
}
return $this->elements[$name];
}
/**
* @param Page
*
* @return string
* @throws \Exception
*/
public function getText(Page $page = null)
{
$text = '';
$sections = $this->getSectionsText($this->content);
$current_font = null;
foreach ($this->document->getObjects() as $obj) {
if ($obj instanceof Font) {
$current_font = $obj;
break;
}
}
if ($current_font === null) {
$current_font = new Font($this->document);
}
$current_position_td = array('x' => false, 'y' => false);
$current_position_tm = array('x' => false, 'y' => false);
array_push(self::$recursionStack, $this->getUniqueId());
foreach ($sections as $section) {
$commands = $this->getCommandsText($section);
foreach ($commands as $command) {
switch ($command[self::OPERATOR]) {
// set character spacing
case 'Tc':
break;
// move text current point
// move text current point
case 'Td':
$args = preg_split('/\\s/s', $command[self::COMMAND]);
$y = array_pop($args);
$x = array_pop($args);
if (floatval($x) <= 0 || $current_position_td['y'] !== false && floatval($y) < floatval($current_position_td['y'])) {
// vertical offset
$text .= "\n";
} elseif ($current_position_td['x'] !== false && floatval($x) > floatval($current_position_td['x'])) {
// horizontal offset
$text .= ' ';
}
$current_position_td = array('x' => $x, 'y' => $y);
break;
// move text current point and set leading
// move text current point and set leading
case 'TD':
$args = preg_split('/\\s/s', $command[self::COMMAND]);
$y = array_pop($args);
$x = array_pop($args);
if (floatval($y) < 0) {
$text .= "\n";
} elseif (floatval($x) <= 0) {
$text .= ' ';
}
break;
case 'Tf':
list($id, ) = preg_split('/\\s/s', $command[self::COMMAND]);
$id = trim($id, '/');
if (!is_null($page)) {
$current_font = $page->getFont($id);
}
break;
case "'":
case 'Tj':
$command[self::COMMAND] = array($command);
case 'TJ':
// Skip if not previously defined, should never happened.
if (is_null($current_font)) {
// Fallback
// TODO : Improve
$text .= $command[self::COMMAND][0][self::COMMAND];
continue;
}
$sub_text = $current_font->decodeText($command[self::COMMAND]);
$text .= $sub_text;
break;
// set leading
// set leading
case 'TL':
$text .= ' ';
break;
case 'Tm':
$args = preg_split('/\\s/s', $command[self::COMMAND]);
$y = array_pop($args);
$x = array_pop($args);
if ($current_position_tm['y'] !== false) {
$delta = abs(floatval($y) - floatval($current_position_tm['y']));
if ($delta > 10) {
$text .= "\n";
}
}
$current_position_tm = array('x' => $x, 'y' => $y);
break;
// set super/subscripting text rise
// set super/subscripting text rise
case 'Ts':
break;
// set word spacing
// set word spacing
case 'Tw':
break;
// set horizontal scaling
// set horizontal scaling
case 'Tz':
$text .= "\n";
break;
// move to start of next line
// move to start of next line
case 'T*':
$text .= "\n";
break;
case 'Da':
break;
case 'Do':
if (!is_null($page)) {
$args = preg_split('/\\s/s', $command[self::COMMAND]);
$id = trim(array_pop($args), '/ ');
$xobject = $page->getXObject($id);
if (is_object($xobject) && !in_array($xobject->getUniqueId(), self::$recursionStack)) {
// Not a circular reference.
$text .= $xobject->getText($page);
}
}
break;
case 'rg':
case 'RG':
break;
case 're':
break;
case 'co':
break;
case 'cs':
break;
case 'gs':
break;
case 'en':
break;
case 'sc':
case 'SC':
break;
case 'g':
case 'G':
break;
case 'V':
break;
case 'vo':
case 'Vo':
break;
default:
}
}
}
array_pop(self::$recursionStack);
return $text . ' ';
}
