BUGFIX while cloning an existant slide

BUGFIX while cloning an existant slide :
- considere if existing object
- cloning each object into collection
- cloning each paragraph for RichText

Author: devX2712

src/PhpPresentation/AbstractShape.php

@@ -135,9 +135,22 @@ public function __construct()
     public function __clone()
     {
         $this->container = null;
-        $this->fill = clone $this->fill;
-        $this->border = clone $this->border;
-        $this->shadow = clone $this->shadow;
+        $this->name = $this->name;
+        if (isset($this->fill)) {
+          $this->fill = clone $this->fill;
+        }
+        if (isset($this->border)) {
+          $this->border = clone $this->border;
+        }
+        if (isset($this->shadow)) {
+          $this->shadow = clone $this->shadow;
+        }
+        if (isset($this->placeholder)) {
+          $this->placeholder = clone $this->placeholder;
+        }
+        if (isset($this->hyperlink)) {
+          $this->hyperlink = clone $this->hyperlink;
+        }
     }
 
     /**

src/PhpPresentation/Shape/RichText.php

@@ -185,7 +185,23 @@ public function __construct()
     }
 
     /**
-     * Get active paragraph index.
+     * Magic Method : clone
+     */
+    public function __clone()
+    {
+        // Call perent clonage for heritage
+        parent::__clone();
+        // Clone each paragraph
+        if (isset($this->richTextParagraphs)) {
+          foreach ($this->richTextParagraphs as &$paragraph) {
+            $paragraph = clone $paragraph;
+        }}
+    }
+
+    /**
+     * Get active paragraph index
+     *
+     * @return int
      */
     public function getActiveParagraphIndex(): int
     {

src/PhpPresentation/Slide.php

@@ -132,6 +132,29 @@ public function setSlideMasterId($masterId = 1)
         return $this;
     }
 
+
+    public function __clone()
+    {
+      // Set parent
+      $this->parent = clone $this->parent;
+      // Shape collection
+      if (isset($this->shapeCollection)) {
+        $this->shapeCollection = clone $this->shapeCollection;
+        foreach ($this->shapeCollection as &$shape) {
+          $shape = clone $shape;
+        }
+      }
+      // Transition object
+      if (isset($this->slideTransition)) {
+        $this->slideTransition = clone $this->slideTransition;
+      }
+      // Note object
+      if (isset($this->slideNote)) {
+        $this->slideNote = clone $this->slideNote;
+      }
+      
+    }
+
     /**
      * Copy slide (!= clone!).
      *