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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 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 QVIS3DNAMESPACE_H
+#define QVIS3DNAMESPACE_H
+
+#include "qdatavis3dglobal.h"
+#include <QOpenGLFunctions>
+#include <QVector3D>
+
+QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
+
+// Constants used in several files
+const GLfloat m_pi = 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679f;
+// Compensation for z position; move all objects to positive z, as shader can't handle negative values correctly
+const GLfloat zComp = 10.0f;
+// Default light position. To have shadows working correctly, light should be as far as camera, or a bit further
+// y position is added to the minimum height (or can be thought to be that much above or below the camera)
+const QVector3D defaultLightPos = QVector3D(0.0f, 0.5f, zComp);
+const GLfloat defaultRatio = 1.0f / 1.6f; // default aspect ratio 16:10
+
+// Enums used in several files
+enum BarStyle {
+    Bars = 0,
+    Pyramids,
+    Cones,
+    Cylinders,
+    Spheres
+};
+
+enum CameraPreset {
+    PresetFrontLow = 0,
+    PresetFront,
+    PresetFrontHigh,
+    PresetLeftLow,
+    PresetLeft,
+    PresetLeftHigh,
+    PresetRightLow,
+    PresetRight,
+    PresetRightHigh,
+    PresetBehindLow,
+    PresetBehind,
+    PresetBehindHigh,
+    PresetIsometricLeft,
+    PresetIsometricLeftHigh,
+    PresetIsometricRight,
+    PresetIsometricRightHigh,
+    PresetDirectlyAbove,
+    PresetDirectlyAboveCW45,
+    PresetDirectlyAboveCCW45
+};
+
+enum ColorTheme {
+    ThemeSystem = 0,
+    ThemeBlueCerulean,
+    ThemeBlueIcy,
+    ThemeBlueNcs,
+    ThemeBrownSand,
+    ThemeDark,
+    ThemeHighContrast,
+    ThemeLight
+};
+
+enum LabelTransparency {
+    TransparencyNone = 0,       // Full solid, using colors from theme
+    TransparencyFromTheme,      // Use colors and transparencies from theme
+    TransparencyNoBackground    // Draw just text on transparent background
+};
+
+// TODO: Will this be used in other vis types than q3dbars?
+enum SelectionMode {
+    ModeNone = 0,
+    ModeBar,
+    ModeBarAndRow,
+    ModeBarAndColumn,
+    ModeBarRowAndColumn,
+    ModeZoomRow,
+    ModeZoomColumn
+};
+
+// TODO: Should this be moved to Q3DBarsPrivate? Not for use via API directly?
+enum LabelPosition {
+    LabelBelow = 0,
+    LabelLow,
+    LabelMid,
+    LabelHigh,
+    LabelOver,
+    LabelBottom,    // Absolute positions from here onward, used for axes (QDataItem is ignored)
+    LabelTop,
+    LabelLeft,
+    LabelRight
+};
+
+
+QTCOMMERCIALDATAVIS3D_END_NAMESPACE
+
+#endif