custominputhandler.cpp Example File

custominput/custominputhandler.cpp
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#include "custominputhandler.h" #include <QtDataVisualization/Q3DCamera> CustomInputHandler::CustomInputHandler(QObject *parent) : QAbstract3DInputHandler(parent) { } void CustomInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos) { Q_UNUSED(event) setInputPosition(mousePos); } void CustomInputHandler::wheelEvent(QWheelEvent *event) { // Adjust zoom level based on what zoom range we're in. int zoomLevel = scene()->activeCamera()->zoomLevel(); if (zoomLevel > 100) zoomLevel += event->angleDelta().y() / 12; else if (zoomLevel > 50) zoomLevel += event->angleDelta().y() / 60; else zoomLevel += event->angleDelta().y() / 120; if (zoomLevel > 500) zoomLevel = 500; else if (zoomLevel < 10) zoomLevel = 10; scene()->activeCamera()->setZoomLevel(zoomLevel); }