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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\qmltype FirstPersonCameraController
\inqmlmodule Qt3D.Extras
\brief The FirstPersonCameraController allows controlling the scene camera
from the first person perspective.
\since 5.7
\inherits Qt3D.Core::Entity
The FirstPersonCameraController allows controlling the scene camera from the first person
perspective.
The controls are:
\table
\header
\li Input
\li Action
\row
\li Left mouse button
\li While the left mouse button is pressed, mouse movement along x-axis pans the camera and
movement along y-axis tilts it.
\row
\li Shift key
\li Turns the fine motion control active while pressed. Makes mouse pan and tilt less
sensitive.
\row
\li Arrow keys
\li Move the camera horizontally relative to camera viewport.
\row
\li Page up and page down keys
\li Move the camera vertically relative to camera viewport.
\endtable
*/
/*!
\qmlproperty Camera FirstPersonCameraController::camera
Holds the currently controlled camera.
*/
/*!
\qmlproperty real FirstPersonCameraController::linearSpeed
Holds the current linear speed of the camera controller. Linear speed determines the
movement speed of the camera.
*/
/*!
\qmlproperty real FirstPersonCameraController::lookSpeed
Holds the current look speed of the camera controller. The look speed determines the turn rate
of the camera pan and tilt.
*/
/*!
\qmlproperty real FirstPersonCameraController::acceleration
Holds the current acceleration.
Specifies the rate at which the camera linear speed increases when a key is held.
If the acceleration is negative, the linear speed stays constant.
Defaults to -1.0.
*/
/*!
\qmlproperty real FirstPersonCameraController::deceleration
Specifies the rate at which the camera linear speed decreases when a key is released.
If the deceleration is negative, the linear speed stays constant.
Defaults to -1.0.
*/
/*!
\qmltype OrbitCameraController
\inqmlmodule Qt3D.Extras
\brief The OrbitCameraController class allows controlling the scene camera along orbital path.
\since 5.7
\inherits Qt3D.Core::Entity
The OrbitCameraController class allows controlling the scene camera along orbital path.
The controls are:
\table
\header
\li Input
\li Action
\row
\li Left mouse button
\li While the left mouse button is pressed, mouse movement along x-axis moves the camera
left and right and movement along y-axis moves it up and down.
\row
\li Right mouse button
\li While the right mouse button is pressed, mouse movement along x-axis pans the camera
around the camera view center and movement along y-axis tilts it around the camera
view center.
\row
\li Both left and right mouse button
\li While both the left and the right mouse button are pressed, mouse movement along y-axis
zooms the camera in and out without changing the view center.
\row
\li Arrow keys
\li Move the camera vertically and horizontally relative to camera viewport.
\row
\li Page up and page down keys
\li Move the camera forwards and backwards.
\row
\li Shift key
\li Changes the behavior of the up and down arrow keys to zoom the camera in and out
without changing the view center. The other movement keys are disabled.
\row
\li Alt key
\li Changes the behovior of the arrow keys to pan and tilt the camera around the view
center. Disables the page up and page down keys.
\endtable
*/
/*!
\qmlproperty Camera OrbitCameraController::camera
Holds the currently controlled camera.
*/
/*!
\qmlproperty real OrbitCameraController::linearSpeed
Holds the current linear speed of the camera controller. Linear speed determines the
movement speed of the camera.
*/
/*!
\qmlproperty real OrbitCameraController::lookSpeed
Holds the current look speed of the camera controller. The look speed determines the turn rate
of the camera pan and tilt.
*/
/*!
\qmlproperty real OrbitCameraController::zoomLimit
Holds the current zoom-in limit. The zoom-in limit determines how close to the view center
the camera can be zoomed.
*/
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