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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
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6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
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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 |