diff options
Diffstat (limited to 'src/utils/camerahelper_p.h')
-rw-r--r-- | src/utils/camerahelper_p.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/utils/camerahelper_p.h b/src/utils/camerahelper_p.h new file mode 100644 index 00000000..68e7e5a2 --- /dev/null +++ b/src/utils/camerahelper_p.h @@ -0,0 +1,93 @@ +/**************************************************************************** +** +** 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#ifndef CAMERAPOSITIONER_P_H +#define CAMERAPOSITIONER_P_H + +#include "qdatavis3dglobal.h" +#include "qdatavis3namespace.h" +#include "q3dbars.h" + +class QMatrix4x4; +class QVector3D; +class QPoint; +class QPointF; + +QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE + +class CameraHelper +{ + public: + // How fast camera rotates when mouse is dragged. Default is 100. + static void setRotationSpeed(int speed); + // Set camera rotation in degrees + static void setCameraRotation(const QPointF &rotation); + // Get camera rotations + static QPointF getCameraRotations(); + // Set default camera orientation. Position's x and y should be 0. + static void setDefaultCameraOrientation(const QVector3D &defaultPosition, + const QVector3D &defaultTarget, + const QVector3D &defaultUp); + // Calculate view matrix based on rotation and zoom + static QMatrix4x4 calculateViewMatrix(const QPoint &mousePos, int zoom, + int screenWidth, int screenHeight); + // Calcluate light position based on rotation. Call after calling calculateViewMatrix to get + // up-to-date position + static QVector3D calculateLightPosition(const QVector3D &lightPosition, + GLfloat fixedRotation = 0.0f, + GLfloat distanceModifier = 0.0f); + static void updateMousePos(const QPoint &mousePos); + static void setCameraPreset(CameraPreset preset); +}; + +QTCOMMERCIALDATAVIS3D_END_NAMESPACE + +#endif |