1 files changed, 22 insertions, 0 deletions
diff --git a/src/datavis3d/data/qbardataitem.cpp b/src/datavis3d/data/qbardataitem.cpp
index 467ee7f3..63e60281 100644
--- a/src/datavis3d/data/qbardataitem.cpp
+++ b/src/datavis3d/data/qbardataitem.cpp
@@ -63,6 +63,11 @@ QBarDataItem::QBarDataItem()
 {
 }
 
+QBarDataItem::QBarDataItem(const QBarDataItem &other)
+{
+    operator=(other);
+}
+
 /*!
  * Destroys QBarDataItem.
  */
@@ -71,6 +76,17 @@ QBarDataItem::~QBarDataItem()
     delete d_ptr;
 }
 
+QBarDataItem &QBarDataItem::operator=(const QBarDataItem &other)
+{
+    m_value = other.m_value;
+    if (other.d_ptr)
+        createExtraData();
+    else
+        d_ptr = 0;
+    // TODO set extra data
+    return *this;
+}
+
 void QBarDataItem::setValue(qreal value)
 {
     m_value = value;
@@ -81,6 +97,12 @@ qreal QBarDataItem::value() const
     return m_value;
 }
 
+void QBarDataItem::createExtraData()
+{
+    if (!d_ptr)
+        d_ptr = new QBarDataItemPrivate;
+}
+
 
 QBarDataItemPrivate::QBarDataItemPrivate()
 {