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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** 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 Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
- \example qmlcustominput
- \title Qt Quick 2 Custom Input Example
- \ingroup qtdatavisualization_examples
- \brief Customizing input in a QML application.
-
- The Qt Quick 2 Custom Input example shows how to customize the 3D graph controls from Qt Quick 2 using the MouseArea to capture and process mouse events in QML.
- Custom input handling code in this example shows how the camera is now controlled by using NumberAnimation to animate the camera and item selection
- is done on mouseover rather than clicking any mouse buttons. Also the code shows how to implement similar zoom with mouse wheel functionality as the default
- input handler implements.
-
- \image qmlcustominput-example.png
-
- \include examples-run.qdocinc
-
- \section1 Removing Default Input Handling
-
- The default input handling mechanism is disabled by setting the inputHandler property to null.
-
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 0
- \dots 0
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 1
- \dots 0
-
- \section1 Implementing Custom Selection Handling
-
- The on mouseover selection handling is implemented using standard MouseArea to capture the mouse events.
- The mouse area is configured to capture hover events and has two custom properties for \c mouseX and \c mouseY
- to store the last known mouse coordinates.
-
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 2
-
- Whenever a pointer movement related signal is received the code updates the \c mouseX and \c mouseY properties.
-
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 3
-
- As the selection is one shot, and is cleared each time a 3D frame is rendered, a timer is setup to retrigger selection so that the selection moves to the item
- currently under the mouse cursor as the camera animates around the graph even when the mouse cursor is not moving.
-
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 4
-
- \section1 Implementing Custom Zoom Handling
-
- The camera has a zoom factor that represents amount of zoom in percentages. In this example the zoom range is limited
- between 10% and 500%. This range is then divided to four subranges where angleDelta is scaled to different amount of zoom change
- based on the current subrange.
-
- \dots
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 5
- \dots
-
- \section1 Implementing Custom Camera Handling
-
- The camera is animated to constantly rotate around the graph with two animations. The rotation around the graph is done with
- a simple NumberAnimation that just increments during 20 seconds from 0 degrees to 360 degrees and sets the \l Q3DCamera::xRotation property.
-
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 6
-
- The camera movement up and down is implemented with a SequentialAnimation that varies the \l Q3DCamera::yRotation property of the camera
- from 5 degrees to 45 degrees and back with in and out easing.
-
- \snippet qmlcustominput/qml/qmlcustominput/main.qml 7
-*/