diff --git a/qmlplugin/declarativebarseries.cpp b/qmlplugin/declarativebarseries.cpp
index 540d414..b68adc9 100644
--- a/qmlplugin/declarativebarseries.cpp
+++ b/qmlplugin/declarativebarseries.cpp
@@ -34,49 +34,39 @@ DeclarativeBarSeries::DeclarativeBarSeries(QDeclarativeItem *parent) :
 
 void DeclarativeBarSeries::componentComplete()
 {
-    if (!m_series) {
-        DeclarativeChart *declarativeChart = qobject_cast<DeclarativeChart *>(parent());
+}
 
-        if (declarativeChart) {
-            QChart *chart = qobject_cast<QChart *>(declarativeChart->m_chart);
-            Q_ASSERT(chart);
+void DeclarativeBarSeries::setBarCategories(QStringList categories)
+{
+    m_categories = categories;
 
-//            QStringList categories;
-//            categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
-//            m_series = new QBarSeries(categories);
-//            m_series = new QBarSeries(m_categories);
-            m_series = new QBarSeries(m_categories);
+    if (m_series) {
+        delete m_series;
+        m_series = 0;
+    }
 
-            // TODO: use data from model
-            QBarSet *set0 = new QBarSet("Bub");
-            QBarSet *set1 = new QBarSet("Bob");
-            QBarSet *set2 = new QBarSet("Guybrush");
+    DeclarativeChart *declarativeChart = qobject_cast<DeclarativeChart *>(parent());
+    if (declarativeChart) {
+        QChart *chart = qobject_cast<QChart *>(declarativeChart->m_chart);
+        Q_ASSERT(chart);
 
-            *set0 << 1 << 2 << 3 << 4 << 5 << 6;
-            *set1 << 5 << 1 << 2 << 4 << 1 << 7;
-            *set2 << 3 << 5 << 8 << 13 << 8 << 5;
+        m_series = new QBarSeries(m_categories);
 
-            m_series->appendBarSet(set0);
-            m_series->appendBarSet(set1);
-            m_series->appendBarSet(set2);
+        // TODO: use data from model
+        QBarSet *set0 = new QBarSet("Bub");
+        QBarSet *set1 = new QBarSet("Bob");
+        QBarSet *set2 = new QBarSet("Guybrush");
 
-            chart->addSeries(m_series);
-        }
-    }
-}
+        *set0 << 1 << 2 << 3 << 4 << 5 << 6;
+        *set1 << 5 << 1 << 2 << 4 << 1 << 7;
+        *set2 << 3 << 5 << 8 << 13 << 8 << 5;
 
-void DeclarativeBarSeries::setBarCategories(QStringList /*categories*/)
-{
-//    m_categories = categories;
-//    if (m_series) {
-//        // Replace categories of the QBarSeries with the new categories
-//        for (int i(0); i < m_categories.count(); i++) {
-//            if (m_series->categories().at(i) != m_categories.at(i))
-//                m_series->insertCategory(m_series->categoryCount(), m_categories.at(i));
-//        }
-//        while (m_series->categoryCount() > m_categories.count())
-//            m_series->removeCategory(m_series->categoryCount() - 1);
-//    }
+        m_series->appendBarSet(set0);
+        m_series->appendBarSet(set1);
+        m_series->appendBarSet(set2);
+
+        chart->addSeries(m_series);
+    }
 }
 
 QStringList DeclarativeBarSeries::barCategories()