| 1 | /**************************************************************************** |
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| 2 | ** |
| 3 | ** Copyright (C) 2016 The Qt Company Ltd. |
| 4 | ** Contact: https://www.qt.io/licensing/ |
| 5 | ** |
| 6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
| 7 | ** |
| 8 | ** $QT_BEGIN_LICENSE:GPL$ |
| 9 | ** Commercial License Usage |
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| 17 | ** GNU General Public License Usage |
| 18 | ** Alternatively, this file may be used under the terms of the GNU |
| 19 | ** General Public License version 3 or (at your option) any later version |
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| 28 | ****************************************************************************/ |
| 29 | |
| 30 | #include "custominputhandler.h" |
| 31 | |
| 32 | #include <QtDataVisualization/Q3DCamera> |
| 33 | |
| 34 | CustomInputHandler::CustomInputHandler(QObject *parent) : |
| 35 | QAbstract3DInputHandler(parent) |
| 36 | { |
| 37 | } |
| 38 | |
| 39 | //! [0] |
| 40 | void CustomInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) |
| 41 | { |
| 42 | Q_UNUSED(event) |
| 43 | setInputPosition(mousePos); |
| 44 | } |
| 45 | //! [0] |
| 46 | |
| 47 | //! [1] |
| 48 | void CustomInputHandler::wheelEvent(QWheelEvent *event) |
| 49 | { |
| 50 | // Adjust zoom level based on what zoom range we're in. |
| 51 | int zoomLevel = scene()->activeCamera()->zoomLevel(); |
| 52 | if (zoomLevel > 100) |
| 53 | zoomLevel += event->angleDelta().y() / 12; |
| 54 | else if (zoomLevel > 50) |
| 55 | zoomLevel += event->angleDelta().y() / 60; |
| 56 | else |
| 57 | zoomLevel += event->angleDelta().y() / 120; |
| 58 | if (zoomLevel > 500) |
| 59 | zoomLevel = 500; |
| 60 | else if (zoomLevel < 10) |
| 61 | zoomLevel = 10; |
| 62 | |
| 63 | scene()->activeCamera()->setZoomLevel(zoomLevel); |
| 64 | } |
| 65 | //! [1] |
| 66 |