InputHandler C++ Example Code.

QDocs to follow in separate task.

Change-Id: I9f1352c190818ba43637345881e151e566188160
Task-id: QTRD-2562
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/examples/custominput/custominputhandler.cpp b/examples/custominput/custominputhandler.cpp
new file mode 100644
index 00000000..dad7c851
--- /dev/null
+++ b/examples/custominput/custominputhandler.cpp
@@ -0,0 +1,49 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+**
+****************************************************************************/
+
+#include "custominputhandler.h"
+
+#include <QtDataVisualization/Q3DCamera>
+
+CustomInputHandler::CustomInputHandler(QObject *parent) :
+    QAbstract3DInputHandler(parent)
+{
+}
+
+void CustomInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
+{
+    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);
+}