add Footnote on TemplateProcessor

[kirkrob]

Is your feature request related to a problem? Please describe.

allow adding a footnote using TemplateProcessor

Describe the solution you'd like

read word/footnotes.xml inside the word file (.docx) and add the footnotes, then inside word/document.xml reference those footnotes

A clear and concise description of what you want to happen.

example

   $TemplateProcess = new TemplateProcessor(example.docx');

    $Text = new TextRun(array('alignment' => Jc::CENTER, 'spaceBefore' => converter::pointToTwip(0), 'spaceAfter' => converter::pointToTwip(0), 'lineHeight' => '1.5'));
    $Text->addText('example text', array('bold' => true, 'size' => 14));
    $footnote = $Text->addFootnote();
    $footnote->addText('example Footnote 1', array('italic'=> true,'size' => 9));
    $TemplateProcess->setComplexBlock('reference1', $Text);

    $TemplateProcess->saveAs('TemplateSetComplexValueWithFootNote.docx');

Describe alternatives you've considered

Edit Files: src/PhpWord/TemplateProcessor.php

need on new TemplateProcessor

• add protected $tempDocumentFootNotes = ''; // to store xml from word/footnotes.xml
• add protected function getDocumentContentFootNotes() // return 'word/footnotes.xml';
• add $this->tempDocumentFootNotes = $this->zipClass->getFromName($this->getDocumentContentFootNotes()); on public function __construct($documentTemplate) // for read xml and store in $tempDocumentFootNotes

need on $TemplateProcess->setComplexBlock

• add private function isFoteNote($complexType) // to know if there are notes in what you want to save
• add private function WriteFoteNote($complexType) // add to $tempDocumentFootNotes the note
• add private function insertFootNote($xml,$pos) // insert xml footnote into tempDocumentFootNotes

need on $TemplateProcess->saveAs($fileName) specifically in public function save()

• use again protected function getDocumentContentFootNotes() // return 'word/footnotes.xml';
• add protected function saveFootNote($fileName, $xml) $fileName get from getDocumentContentFootNotes() and $xml get from $this->tempDocumentFootNotes

Edit Files: src/PhpWord/Writer/Word2007/Element/Footnote.php

• add public function writeNote($Id)
• add protected $elementNode = 'w:footnote';
• add protected $refStyle = 'FootnoteReference';
• add protected $refNode = 'w:footnoteRef';

Additional context

attached

• modified src/PhpWord/Writer/Word2007/Element/Footnote.php on code.zip
• modified src/PhpWord/Writer/Word2007/Element/Footnote.php on code.zip
• input word file
• output word file

Code.zip
example.docx
TemplateSetComplexValueWithFootNote.docx