diff --git a/demos/chartviewer/charts/charts.pri b/demos/chartviewer/charts/charts.pri
index f2d564e..d73bc74 100644
--- a/demos/chartviewer/charts/charts.pri
+++ b/demos/chartviewer/charts/charts.pri
@@ -1,13 +1,14 @@
-INCLUDEPATH += $$PWD 
+INCLUDEPATH += $$PWD
 DEPENDPATH += $$PWD
-
-SOURCES+= \
-        linechart.cpp \
-        scatterchart.cpp \
-        splinechart.cpp \
-        piechart.cpp \
-        verticalstackedbarchart.cpp \
-        horizontalstackedbarchart.cpp \
-        verticalbarchart.cpp \
-        horizontalbarchart.cpp \
-        areachart.cpp
\ No newline at end of file
+SOURCES += linechart.cpp \
+    scatterchart.cpp \
+    splinechart.cpp \
+    verticalstackedbarchart.cpp \
+    horizontalstackedbarchart.cpp \
+    verticalbarchart.cpp \
+    horizontalbarchart.cpp \
+    horizontalpercentbarchart.cpp \
+    verticalpercentbarchart.cpp \
+    areachart.cpp \
+    piechart.cpp \
+    donutchart.cpp
diff --git a/demos/chartviewer/charts/donutchart.cpp b/demos/chartviewer/charts/donutchart.cpp
new file mode 100644
index 0000000..8402b2f
--- /dev/null
+++ b/demos/chartviewer/charts/donutchart.cpp
@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qpieseries.h"
+
+class DonutChart: public Chart
+{
+public:
+    QString name() { return QObject::tr("DonutChart"); }
+    QString category()  { return QObject::tr("PieSeries"); }
+    QString subCategory() { return QString::null; }
+
+    QChart* createChart(const DataTable& table)
+    {
+        QChart* chart = new QChart();
+        chart->setTitle("Donut chart");
+
+        for (int i = 0, j = table.count(); i < table.count(); i++,j--) {
+            QPieSeries *series = new QPieSeries(chart);
+            foreach (Data data, table[i]) {
+                QPieSlice *slice = series->append(data.second, data.first.y());
+                if (data == table[i].first()) {
+                    slice->setLabelVisible();
+                }
+            }
+            series->setPieSize( j / (qreal) table.count());
+            if(j>1) series->setHoleSize( (j-1)/ (qreal) table.count()+0.1);
+            series->setHorizontalPosition(0.5);
+            series->setVerticalPosition(0.5);
+            chart->addSeries(series);
+        }
+        return chart;
+    }
+
+};
+
+DECLARE_CHART(DonutChart)
+
diff --git a/demos/chartviewer/charts/horizontalpercentbarchart.cpp b/demos/chartviewer/charts/horizontalpercentbarchart.cpp
new file mode 100644
index 0000000..ce1223a
--- /dev/null
+++ b/demos/chartviewer/charts/horizontalpercentbarchart.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qhorizontalpercentbarseries.h"
+#include "qbarset.h"
+
+class HorizontalPercentBarChart: public Chart
+{
+public:
+    QString name() { return QObject::tr("HorizontalPercentBarChart"); }
+    QString category()  { return QObject::tr("BarSeries"); }
+    QString subCategory() { return QObject::tr("Horizontal"); }
+
+    QChart* createChart(const DataTable& table)
+    {
+
+        QChart* chart = new QChart();
+
+        chart->setTitle("Horizontal percent chart");
+
+        QHorizontalPercentBarSeries* series = new QHorizontalPercentBarSeries(chart);
+        for (int i(0); i < table.count(); i++) {
+            QBarSet *set = new QBarSet("Bar set " + QString::number(i));
+            foreach (Data data, table[i])
+                *set << data.first.y();
+            series->append(set);
+        }
+        chart->addSeries(series);
+        chart->createDefaultAxes();
+        return chart;
+    }
+
+};
+
+DECLARE_CHART(HorizontalPercentBarChart)
+
diff --git a/demos/chartviewer/charts/verticalpercentbarchart.cpp b/demos/chartviewer/charts/verticalpercentbarchart.cpp
new file mode 100644
index 0000000..5adeb38
--- /dev/null
+++ b/demos/chartviewer/charts/verticalpercentbarchart.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qpercentbarseries.h"
+#include "qbarset.h"
+
+class VerticalPercentBarChart: public Chart
+{
+public:
+    QString name() { return QObject::tr("VerticalPercentBarChart"); }
+    QString category()  { return QObject::tr("BarSeries"); }
+    QString subCategory() { return QObject::tr("Vertical"); }
+
+    QChart* createChart(const DataTable& table)
+    {
+
+        QChart* chart = new QChart();
+
+        chart->setTitle("Stacked bar chart");
+
+        QPercentBarSeries* series = new QPercentBarSeries(chart);
+        for (int i(0); i < table.count(); i++) {
+            QBarSet *set = new QBarSet("Bar set " + QString::number(i));
+            foreach (Data data, table[i])
+                *set << data.first.y();
+            series->append(set);
+        }
+        chart->addSeries(series);
+        chart->createDefaultAxes();
+        return chart;
+    }
+
+};
+
+DECLARE_CHART(VerticalPercentBarChart)
+
diff --git a/demos/chartviewer/window.cpp b/demos/chartviewer/window.cpp
index 976c645..031b566 100644
--- a/demos/chartviewer/window.cpp
+++ b/demos/chartviewer/window.cpp
@@ -296,6 +296,8 @@ void Window::checkTemplate()
     if (m_template == index || index == 0)
         return;
 
+    m_template = index;
+
     QString category = m_templateComboBox->itemData(index).toString();
     Charts::ChartList list = Charts::chartList();