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Diffstat (limited to 'examples/qt3d/simple-cpp/orbittransformcontroller.cpp')
-rw-r--r-- | examples/qt3d/simple-cpp/orbittransformcontroller.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/examples/qt3d/simple-cpp/orbittransformcontroller.cpp b/examples/qt3d/simple-cpp/orbittransformcontroller.cpp new file mode 100644 index 000000000..a7d66837b --- /dev/null +++ b/examples/qt3d/simple-cpp/orbittransformcontroller.cpp @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). +** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later 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 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "orbittransformcontroller.h" + +#include <Qt3DCore/qtransform.h> + +QT_BEGIN_NAMESPACE + +OrbitTransformController::OrbitTransformController(QObject *parent) + : QObject(parent) + , m_target(Q_NULLPTR) + , m_matrix() + , m_radius(1.0f) + , m_angle(0.0f) +{ +} + +void OrbitTransformController::setTarget(Qt3DCore::QTransform *target) +{ + if (m_target != target) { + m_target = target; + emit targetChanged(); + } +} + +Qt3DCore::QTransform *OrbitTransformController::target() const +{ + return m_target; +} + +void OrbitTransformController::setRadius(float radius) +{ + if (!qFuzzyCompare(radius, m_radius)) { + m_radius = radius; + updateMatrix(); + emit radiusChanged(); + } +} + +float OrbitTransformController::radius() const +{ + return m_radius; +} + +void OrbitTransformController::setAngle(float angle) +{ + if (!qFuzzyCompare(angle, m_angle)) { + m_angle = angle; + updateMatrix(); + emit angleChanged(); + } +} + +float OrbitTransformController::angle() const +{ + return m_angle; +} + +void OrbitTransformController::updateMatrix() +{ + m_matrix.setToIdentity(); + m_matrix.rotate(m_angle, QVector3D(0.0f, 1.0f, 0.0f)); + m_matrix.translate(m_radius, 0.0f, 0.0f); + m_target->setMatrix(m_matrix); +} + +QT_END_NAMESPACE |