diff --git a/src/common/KReportData.h b/src/common/KReportData.h
--- a/src/common/KReportData.h
+++ b/src/common/KReportData.h
@@ -29,16 +29,27 @@
 {
 
 public:
+    KReportData();
     virtual ~KReportData();
 
     //! Describes sorting for single field
     /*! By default the order is ascending. */
     class KREPORT_EXPORT SortedField
     {
     public:
         SortedField();
-        QString field;
-        Qt::SortOrder order;
+        ~SortedField();
+        SortedField& operator=(const SortedField &other);
+        void setField(const QString &field);
+        void setOrder(Qt::SortOrder order);
+        QString field() const;
+        QString field();
+        Qt::SortOrder order() const;
+        Qt::SortOrder order();
+        
+        private:
+            class Private;
+            Private * const d;
     };
 
     //! Open the dataset
@@ -117,6 +128,11 @@
     //! @a source is implementation-specific identifier.
     //! Owner of the returned pointer is the caller.
     virtual KReportData* create(const QString &source) const Q_REQUIRED_RESULT;
+    
+private:
+    Q_DISABLE_COPY(KReportData)
+    class Private;
+    Private * const d;
 };
 
 #endif
diff --git a/src/common/KReportData.cpp b/src/common/KReportData.cpp
--- a/src/common/KReportData.cpp
+++ b/src/common/KReportData.cpp
@@ -18,13 +18,81 @@
 #include "KReportData.h"
 #include <QVariant>
 
-KReportData::~KReportData()
+class KReportData::SortedField::Private 
 {
-}
+    
+public:
+    QString field;
+    Qt::SortOrder order = Qt::AscendingOrder;
+};
+
+class KReportData::Private
+{
+public:
+    bool dummy = true;
+};
+
+//==========KReportData::SortedField==========
 
 KReportData::SortedField::SortedField()
-    : order(Qt::AscendingOrder)
+    : d(new Private())
+{
+}
+
+KReportData::SortedField::~SortedField()
+{
+    delete d;
+}
+
+KReportData::SortedField & KReportData::SortedField::operator=(const KReportData::SortedField& other)
+{
+    if (this != &other) {
+        setField(other.field());
+        setOrder(other.order());
+    }
+    return *this;
+}
+
+QString KReportData::SortedField::field()
+{
+    return d->field;
+}
+
+QString KReportData::SortedField::field() const
+{
+    return d->field;
+}
+
+Qt::SortOrder KReportData::SortedField::order()
+{
+    return d->order;
+}
+
+Qt::SortOrder KReportData::SortedField::order() const
+{
+    return d->order;
+}
+
+void KReportData::SortedField::setField(const QString& field)
+{
+    d->field = field;
+}
+
+void KReportData::SortedField::setOrder(Qt::SortOrder order)
+{
+    d->order = order;
+}
+
+
+//==========KReportData==========
+
+KReportData::KReportData() : d(new Private())
+{
+}
+
+KReportData::~KReportData()
 {
+    delete d;
 }
 
 QStringList KReportData::fieldKeys() const
diff --git a/src/common/KReportDetailSectionData.cpp b/src/common/KReportDetailSectionData.cpp
--- a/src/common/KReportDetailSectionData.cpp
+++ b/src/common/KReportDetailSectionData.cpp
@@ -91,8 +91,8 @@
             }
             m_groupList.append(dgsd);
             KReportData::SortedField s;
-            s.field = dgsd->m_column;
-            s.order = dgsd->m_sort;
+            s.setField(dgsd->m_column);
+            s.setOrder(dgsd->m_sort);
             m_sortedFields.append(s);
 	    
         } else if (elemThis.tagName() == QLatin1String("report:section") && elemThis.attribute(QLatin1String("report:section-type")) == QLatin1String("detail")) {
diff --git a/src/wrtembed/KReportDesignerItemBase.h b/src/wrtembed/KReportDesignerItemBase.h
--- a/src/wrtembed/KReportDesignerItemBase.h
+++ b/src/wrtembed/KReportDesignerItemBase.h
@@ -79,6 +79,7 @@
     QString renderText() const;
 
 private:
+    Q_DISABLE_COPY(KReportDesignerItemBase)
     class Private;
     Private * const d;
 };