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29
30#include "custominputhandler.h"
31
32#include <QtDataVisualization/Q3DCamera>
33
34CustomInputHandler::CustomInputHandler(QObject *parent) :
35 QAbstract3DInputHandler(parent)
36{
37}
38
39//! [0]
40void CustomInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
41{
42 Q_UNUSED(event)
43 setInputPosition(mousePos);
44}
45//! [0]
46
47//! [1]
48void 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

source code of qtdatavis3d/tests/manual/barstest/custominputhandler.cpp