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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtDataVis3D module.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef Q3DBARS_H
+#define Q3DBARS_H
+
+#include "QtDataVis3D/qdatavis3dglobal.h"
+#include "QtDataVis3D/qdatavis3namespace.h"
+#include "q3dwindow.h"
+
+class QOpenGLShaderProgram;
+
+QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
+
+class Q3DBarsPrivate;
+class QDataItem;
+class QDataRow;
+class QDataSet;
+class LabelItem;
+
+class QTCOMMERCIALDATAVIS3D_EXPORT Q3DBars : public Q3DWindow
+{
+    Q_OBJECT
+public:
+    explicit Q3DBars();
+    ~Q3DBars();
+
+    void initialize();
+    void render();
+
+    // Add a row of data. Each new row is added to the front of the sample space, moving previous
+    // rows back (if sample space is more than one row deep)
+    void addDataRow(const QVector<GLfloat> &dataRow,
+                    const QString &labelRow = QString(),
+                    const QVector<QString> &labelsColumn = QVector<QString>());
+    // ownership of dataItems is transferred
+    void addDataRow(const QVector<QDataItem*> &dataRow,
+                    const QString &labelRow = QString(),
+                    const QVector<QString> &labelsColumn = QVector<QString>());
+    // ownership of dataRow is transferred
+    void addDataRow(QDataRow *dataRow);
+
+    // Add complete data set at a time, as a vector of data rows
+    void addDataSet(const QVector< QVector<GLfloat> > &data,
+                    const QVector<QString> &labelsRow = QVector<QString>(),
+                    const QVector<QString> &labelsColumn = QVector<QString>());
+
+    // ownership of dataItems is transferred
+    void addDataSet(const QVector< QVector<QDataItem*> > &data,
+                    const QVector<QString> &labelsRow = QVector<QString>(),
+                    const QVector<QString> &labelsColumn = QVector<QString>());
+    // ownership of dataSet is transferred
+    void addDataSet(QDataSet* dataSet);
+
+    // bar thickness, spacing between bars, and is spacing relative to thickness or absolute
+    // y -component sets the thickness/spacing of z -direction
+    // With relative 0.0f means side-to-side, 1.0f = one thickness in between
+    void setBarSpecs(QSizeF thickness = QSizeF(1.0f, 1.0f),
+                     QSizeF spacing = QSizeF(1.0f, 1.0f),
+                     bool relative = true);
+
+    // bar type; bars (=cubes), pyramids, cones, cylinders, etc.
+    void setBarType(BarStyle style, bool smooth = false);
+
+    // override bar type with own mesh
+    void setMeshFileName(const QString &objFileName);
+
+    // how many samples per row and column, and names for axes
+    void setupSampleSpace(int samplesRow, int samplesColumn, const QString &labelRow = QString(),
+                          const QString &labelColumn = QString(),
+                          const QString &labelHeight = QString());
+
+    // Select preset camera placement
+    void setCameraPreset(CameraPreset preset);
+
+    // Set camera rotation if you don't want to use the presets (in horizontal (-180...180) and
+    // vertical (0...90) angles and distance in percentage (10...500))
+    void setCameraPosition(GLfloat horizontal, GLfloat vertical, GLint distance = 100);
+
+    // Set theme (bar colors, shaders, window color, background colors, light intensity and text colors are affected)
+    void setTheme(ColorTheme theme);
+
+    // Set color if you don't want to use themes. Set uniform to false if you want the (height) color to change from bottom to top
+    void setBarColor(QColor baseColor, QColor heightColor, QColor depthColor, bool uniform = true);
+
+    // TODO: valon siirto / asetus
+    // Change selection mode; single bar, bar and row, bar and column, or all
+    void setSelectionMode(SelectionMode mode);
+
+    // Set window title
+    void setWindowTitle(const QString &title);
+
+    // Font size adjustment (should it be in enum (smallest, smaller, small, normal, large, larger, largest), or just GLfloat?
+    void setFontSize(GLfloat fontsize);
+
+    // Set font
+    void setFont(const QFont &font);
+
+    // Label transparency adjustment
+    void setLabelTransparency(LabelTransparency transparency);
+
+    // Enable or disable background grid
+    void setGridEnabled(bool enable);
+
+    // Adjust shadow quality
+    void setShadowQuality(ShadowQuality quality);
+
+    // Set tick count and step. Note; tickCount * step should be the maximum possible value of data set.
+    // Minimum is the absolute minimum possible value a bar can have. This is especially important to
+    // set if values can be negative.
+    void setTickCount(GLint tickCount, GLfloat step, GLfloat minimum = 0.0f);
+
+protected:
+    void mousePressEvent(QMouseEvent *event);
+    void mouseReleaseEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event);
+    void wheelEvent(QWheelEvent *event);
+    void resizeEvent(QResizeEvent *event);
+
+private:
+    void drawZoomScene();
+    void drawScene();
+    QScopedPointer<Q3DBarsPrivate> d_ptr;
+    Q_DISABLE_COPY(Q3DBars)
+};
+
+QTCOMMERCIALDATAVIS3D_END_NAMESPACE
+
+#endif