/**
* Load pages recursively
*
* @param Zend_Pdf_Element_Reference $pages
* @param array|null $attributes
*/
protected function _loadPages(Zend_Pdf_Element_Reference $pages, $attributes = array())
{
if ($pages->getType() != Zend_Pdf_Element::TYPE_DICTIONARY) {
throw new Zend_Pdf_Exception('Wrong argument');
}
foreach ($pages->getKeys() as $property) {
if (in_array($property, self::$_inheritableAttributes)) {
$attributes[$property] = $pages->{$property};
$pages->{$property} = null;
}
}
foreach ($pages->Kids->items as $child) {
if ($child->Type->value == 'Pages') {
$this->_loadPages($child, $attributes);
} else {
if ($child->Type->value == 'Page') {
foreach (self::$_inheritableAttributes as $property) {
if ($child->{$property} === null && array_key_exists($property, $attributes)) {
/**
* Important note.
* If any attribute or dependant object is an indirect object, then it's still
* shared between pages.
*/
if ($attributes[$property] instanceof Zend_Pdf_Element_Object || $attributes[$property] instanceof Zend_Pdf_Element_Reference) {
$child->{$property} = $attributes[$property];
} else {
$child->{$property} = $this->_objFactory->newObject($attributes[$property]);
}
}
}
$this->pages[] = new Core_Pdf_Page($child, $this->_objFactory);
}
}
}
}
/**
* Dump Action and its child actions into PDF structures
*
* Returns dictionary indirect object or reference
*
* @internal
* @param Zend_Pdf_ElementFactory $factory Object factory for newly created indirect objects
* @param SplObjectStorage $processedActions list of already processed actions (used to prevent infinity loop caused by cyclic references)
* @return Zend_Pdf_Element_Object|Zend_Pdf_Element_Reference Dictionary indirect object
*/
public function dumpAction(Zend_Pdf_ElementFactory_Interface $factory, SplObjectStorage $processedActions = null)
{
if ($processedActions === null) {
$processedActions = new SplObjectStorage();
}
if ($processedActions->contains($this)) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Action chain cyclyc reference is detected.');
}
$processedActions->attach($this);
$childListUpdated = false;
if (count($this->_originalNextList) != count($this->next)) {
// If original and current children arrays have different size then children list was updated
$childListUpdated = true;
} else {
if (!(array_keys($this->_originalNextList) === array_keys($this->next))) {
// If original and current children arrays have different keys (with a glance to an order) then children list was updated
$childListUpdated = true;
} else {
foreach ($this->next as $key => $childAction) {
if ($this->_originalNextList[$key] !== $childAction) {
$childListUpdated = true;
break;
}
}
}
}
if ($childListUpdated) {
$this->_actionDictionary->touch();
switch (count($this->next)) {
case 0:
$this->_actionDictionary->Next = null;
break;
case 1:
$child = reset($this->next);
$this->_actionDictionary->Next = $child->dumpAction($factory, $processedActions);
break;
default:
require_once 'Zend/Pdf/Element/Array.php';
$pdfChildArray = new Zend_Pdf_Element_Array();
foreach ($this->next as $child) {
$pdfChildArray->items[] = $child->dumpAction($factory, $processedActions);
}
$this->_actionDictionary->Next = $pdfChildArray;
break;
}
} else {
foreach ($this->next as $child) {
$child->dumpAction($factory, $processedActions);
}
}
if ($this->_actionDictionary instanceof Zend_Pdf_Element_Dictionary) {
// It's a newly created action. Register it within object factory and return indirect object
return $factory->newObject($this->_actionDictionary);
} else {
// It's a loaded object
return $this->_actionDictionary;
}
}
/**
* Set text to be displayed for the annotation or, if this type of annotation
* does not display text, an alternate description of the annotation’s contents
* in human-readable form.
*
* @param string $text
* @return Zend_Pdf_Annotation
*/
public function setText($text)
{
if ($this->_annotationDictionary->Contents === null) {
$this->_annotationDictionary->touch();
$this->_annotationDictionary->Contents = new Zend_Pdf_Element_String($text);
} else {
$this->_annotationDictionary->Contents->touch();
$this->_annotationDictionary->Contents->value = new Zend_Pdf_Element_String($text);
}
return $this;
}
/**
* Set text to be displayed for the annotation or, if this type of annotation
* does not display text, an alternate description of the annotation’s contents
* in human-readable form.
*
* @param string $text
* @return Zend_Pdf_Annotation
*/
public function setText($text)
{
require_once 'Zend/Pdf/Element/String.php';
if ($this->_annotationDictionary->Contents === null) {
$this->_annotationDictionary->touch();
$this->_annotationDictionary->Contents = new Zend_Pdf_Element_String($text);
} else {
$this->_annotationDictionary->Contents->touch();
$this->_annotationDictionary->Contents->value = new Zend_Pdf_Element_String($text);
}
return $this;
}
/**
* Dump current drawing instructions into the content stream.
*
* @todo Don't forget to close all current graphics operations (like path drawing)
*
* @throws Zend_Pdf_Exception
*/
public function flush()
{
if ($this->_saveCount != 0) {
throw new Zend_Pdf_Exception('Saved graphics state is not restored');
}
if ($this->_contents == '') {
return;
}
if ($this->_pageDictionary->Contents->getType() != Zend_Pdf_Element::TYPE_ARRAY) {
/**
* It's a stream object.
* Prepare Contents page attribute for update.
*/
$this->_pageDictionary->touch();
$currentPageContents = $this->_pageDictionary->Contents;
$this->_pageDictionary->Contents = new Zend_Pdf_Element_Array();
$this->_pageDictionary->Contents->items[] = $currentPageContents;
} else {
$this->_pageDictionary->Contents->touch();
}
$this->_pageDictionary->Contents->items[] = $this->_objFactory->newStreamObject($this->_contents);
$this->_contents == '';
}
/**
*
* @param Zend_Pdf_Annotation $annotation
* @return Zend_Pdf_Page
*/
public function attachAnnotation(Zend_Pdf_Annotation $annotation)
{
$annotationDictionary = $annotation->getResource();
if (!$annotationDictionary instanceof Zend_Pdf_Element_Object && !$annotationDictionary instanceof Zend_Pdf_Element_Reference) {
$annotationDictionary = $this->_objFactory->newObject($annotationDictionary);
}
if ($this->_pageDictionary->Annots === null) {
$this->_pageDictionary->touch();
$this->_pageDictionary->Annots = new Zend_Pdf_Element_Array();
} else {
$this->_pageDictionary->Annots->touch();
}
$this->_pageDictionary->Annots->items[] = $annotationDictionary;
$annotationDictionary->touch();
$annotationDictionary->P = $this->_pageDictionary;
return $this;
}
/**
* Dump Outline and its child outlines into PDF structures
*
* Returns dictionary indirect object or reference
*
* @internal
* @param Zend_Pdf_ElementFactory $factory object factory for newly created indirect objects
* @param boolean $updateNavigation Update navigation flag
* @param Zend_Pdf_Element $parent Parent outline dictionary reference
* @param Zend_Pdf_Element $prev Previous outline dictionary reference
* @param SplObjectStorage $processedOutlines List of already processed outlines
* @return Zend_Pdf_Element
* @throws Zend_Pdf_Exception
*/
public function dumpOutline(Zend_Pdf_ElementFactory_Interface $factory, $updateNavigation, Zend_Pdf_Element $parent, Zend_Pdf_Element $prev = null, SplObjectStorage $processedOutlines = null)
{
if ($processedOutlines === null) {
$processedOutlines = new SplObjectStorage();
}
$processedOutlines->attach($this);
if ($updateNavigation) {
$this->_outlineDictionary->touch();
$this->_outlineDictionary->Parent = $parent;
$this->_outlineDictionary->Prev = $prev;
$this->_outlineDictionary->Next = null;
}
$updateChildNavigation = false;
if (count($this->_originalChildOutlines) != count($this->childOutlines)) {
// If original and current children arrays have different size then children list was updated
$updateChildNavigation = true;
} else {
if (!(array_keys($this->_originalChildOutlines) === array_keys($this->childOutlines))) {
// If original and current children arrays have different keys (with a glance to an order) then children list was updated
$updateChildNavigation = true;
} else {
foreach ($this->childOutlines as $key => $childOutline) {
if ($this->_originalChildOutlines[$key] !== $childOutline) {
$updateChildNavigation = true;
break;
}
}
}
}
$lastChild = null;
if ($updateChildNavigation) {
$this->_outlineDictionary->touch();
$this->_outlineDictionary->First = null;
foreach ($this->childOutlines as $childOutline) {
if ($processedOutlines->contains($childOutline)) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Outlines cyclyc reference is detected.');
}
if ($lastChild === null) {
// First pass. Update Outlines dictionary First entry using corresponding value
$lastChild = $childOutline->dumpOutline($factory, $updateChildNavigation, $this->_outlineDictionary, null, $processedOutlines);
$this->_outlineDictionary->First = $lastChild;
} else {
// Update previous outline dictionary Next entry (Prev is updated within dumpOutline() method)
$childOutlineDictionary = $childOutline->dumpOutline($factory, $updateChildNavigation, $this->_outlineDictionary, $lastChild, $processedOutlines);
$lastChild->Next = $childOutlineDictionary;
$lastChild = $childOutlineDictionary;
}
}
$this->_outlineDictionary->Last = $lastChild;
if (count($this->childOutlines) != 0) {
$this->_outlineDictionary->Count = new Zend_Pdf_Element_Numeric(($this->isOpen() ? 1 : -1) * count($this->childOutlines));
} else {
$this->_outlineDictionary->Count = null;
}
} else {
foreach ($this->childOutlines as $childOutline) {
if ($processedOutlines->contains($childOutline)) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Outlines cyclyc reference is detected.');
}
$lastChild = $childOutline->dumpOutline($factory, $updateChildNavigation, $this->_outlineDictionary, $lastChild, $processedOutlines);
}
}
return $this->_outlineDictionary;
}
/**
* Dump current drawing instructions into the content stream.
*
* @todo Don't forget to close all current graphics operations (like path drawing)
*
* @throws Zend_Pdf_Exception
*/
public function flush()
{
if ($this->_saveCount != 0) {
throw new Zend_Pdf_Exception('Saved graphics state is not restored');
}
if ($this->_contents == '') {
return;
}
if ($this->_pageDictionary->Contents->getType() != Zend_Pdf_Element::TYPE_ARRAY) {
/**
* It's a stream object.
* Prepare Contents page attribute for update.
*/
$this->_pageDictionary->touch();
$currentPageContents = $this->_pageDictionary->Contents;
$this->_pageDictionary->Contents = new Zend_Pdf_Element_Array();
$this->_pageDictionary->Contents->items[] = $currentPageContents;
} else {
$this->_pageDictionary->Contents->touch();
}
if (!$this->_safeGS && count($this->_pageDictionary->Contents->items) != 0) {
/**
* Page already has some content which is not treated as safe.
*
* Add save/restore GS operators
*/
$this->_addProcSet('PDF');
$newContentsArray = new Zend_Pdf_Element_Array();
$newContentsArray->items[] = $this->_objFactory->newStreamObject(" q\n");
foreach ($this->_pageDictionary->Contents->items as $contentStream) {
$newContentsArray->items[] = $contentStream;
}
$newContentsArray->items[] = $this->_objFactory->newStreamObject(" Q\n");
$this->_pageDictionary->touch();
$this->_pageDictionary->Contents = $newContentsArray;
$this->_safeGS = true;
}
$this->_pageDictionary->Contents->items[] = $this->_objFactory->newStreamObject($this->_contents);
$this->_contents = '';
}
/**
* Load pages recursively
*
* @param Zend_Pdf_Element_Reference $pages
*/
private function _loadPages(Zend_Pdf_Element_Reference $pages)
{
if ($pages->getType() != Zend_Pdf_Element::TYPE_DICTIONARY) {
throw new Zend_Pdf_Exception('Wrong argument');
}
foreach ($pages->Kids->items as $child) {
if ($child->Type->value == 'Pages') {
$this->_loadPages($child);
} else {
if ($child->Type->value == 'Page') {
$this->pages[] = new Zend_Pdf_Page($child, $this->_objFactory);
}
}
}
}
