EVOL-Allow different style of strick paragraph

Paragraph double strick were not supported, modification has been done to support different strick type

Author: devX2712

src/PhpPresentation/Reader/PowerPoint2007.php

@@ -1235,7 +1235,7 @@ protected function loadParagraph(XMLReader $document, DOMElement $oElement, $oSh
                         $oText->getFont()->setItalic('true' == $att || '1' == $att ? true : false);
                     }
                     if ($oElementrPr->hasAttribute('strike')) {
-                        $oText->getFont()->setStrikethrough('noStrike' == $oElementrPr->getAttribute('strike') ? false : true);
+                        $oText->getFont()->setStrikethrough($oElementrPr->getAttribute('strike'));
                     }
                     if ($oElementrPr->hasAttribute('sz')) {
                         $oText->getFont()->setSize((int) ((int) $oElementrPr->getAttribute('sz') / 100));

src/PhpPresentation/Style/Font.php

@@ -149,6 +149,7 @@ class Font implements ComparableInterface
     public function __construct()
     {
         $this->color = new Color(Color::COLOR_BLACK);
+        $this->strikethrough    = 'noStrike';
     }
 
     /**
@@ -344,8 +345,11 @@ public function isStrikethrough(): bool
     /**
      * Set Strikethrough.
      */
-    public function setStrikethrough(bool $pValue = false): self
+    public function setStrikethrough($pValue = 'noStrike')
     {
+        if ($pValue == '') {
+            $pValue = 'noStrike';
+        }
         $this->strikethrough = $pValue;
 
         return $this;

src/PhpPresentation/Writer/PowerPoint2007/AbstractSlide.php

@@ -649,7 +649,7 @@ protected function writeRunStyles(XMLWriter $objWriter, RichText\Run $element):
 
         $objWriter->writeAttributeIf($element->getFont()->isBold(), 'b', '1');
         $objWriter->writeAttributeIf($element->getFont()->isItalic(), 'i', '1');
-        $objWriter->writeAttributeIf($element->getFont()->isStrikethrough(), 'strike', 'sngStrike');
+        $objWriter->writeAttributeIf($element->getFont()->isStrikethrough(), 'strike', $element->getFont()->isStrikethrough());
 
         // Size
         $objWriter->writeAttribute('sz', ($element->getFont()->getSize() * 100));