From a28cdb72a4ea768a898ca07f0df0fa3c17c073a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomi=20Korpip=C3=A4=C3=A4?= <tomi.korpipaa@digia.com>
Date: Tue, 10 Sep 2013 11:42:13 +0300
Subject: Module renamed

Task-number: QTRD-2224

Change-Id: Iec18b6121809300b11d85445281d3c626c434f35
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
---
 src/datavisualization/input/q3dinputhandler.cpp | 124 ++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/datavisualization/input/q3dinputhandler.cpp

(limited to 'src/datavisualization/input/q3dinputhandler.cpp')

diff --git a/src/datavisualization/input/q3dinputhandler.cpp b/src/datavisualization/input/q3dinputhandler.cpp
new file mode 100644
index 00000000..85583a16
--- /dev/null
+++ b/src/datavisualization/input/q3dinputhandler.cpp
@@ -0,0 +1,124 @@
+/****************************************************************************
+**
+** 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 "q3dinputhandler.h"
+#include "q3dcamera.h"
+#include "q3dlight.h"
+
+QT_DATAVISUALIZATION_BEGIN_NAMESPACE
+
+Q3DInputHandler::Q3DInputHandler(QObject *parent) :
+    QAbstract3DInputHandler(parent)
+{
+}
+
+Q3DInputHandler::~Q3DInputHandler()
+{
+}
+
+// Input event listeners
+void Q3DInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos)
+{
+    if (Qt::LeftButton == event->button()) {
+        if (scene()->isSlicingActivated()) {
+            if (scene()->isInputInsideMainView(mousePos)) {
+                setInputState(QDataVis::InputOnOverview);
+                //qDebug() << "Mouse pressed on overview";
+            } else if (scene()->isInputInsideSliceView(mousePos)) {
+                setInputState(QDataVis::InputOnSlice);
+                //qDebug() << "Mouse pressed on zoom";
+            } else {
+                setInputState(QDataVis::InputNone);
+            }
+        } else {
+            setInputState(QDataVis::InputOnScene);
+            // update mouse positions to prevent jumping when releasing or repressing a button
+            setInputPosition(mousePos);
+            emit selectionAtPoint(mousePos);
+            //qDebug() << "Mouse pressed on scene";
+
+        }
+    } else if (Qt::MiddleButton == event->button()) {
+        // reset rotations
+        setInputPosition(QPoint(0, 0));
+    } else if (Qt::RightButton == event->button()) {
+        // disable rotating when in slice view
+        setInputState(QDataVis::InputRotating);
+        // update mouse positions to prevent jumping when releasing or repressing a button
+        setInputPosition(mousePos);
+    }
+    // TODO: Call actual camera class when it's been written.
+    //m_cameraHelper->updateMousePos(m_mousePos);}
+}
+
+void Q3DInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos)
+{
+    Q_UNUSED(event);
+    if (QDataVis::InputRotating == inputState()) {
+        // update mouse positions to prevent jumping when releasing or repressing a button
+        setInputPosition(mousePos);
+    }
+    setInputState(QDataVis::InputNone);
+}
+
+void Q3DInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
+{
+    Q_UNUSED(event);
+    if (QDataVis::InputRotating == inputState()) {
+
+        // Calculate mouse movement since last frame
+        QPointF rotations = scene()->camera()->rotations();
+        GLfloat xRotation = rotations.x();
+        GLfloat yRotation = rotations.y();
+        GLfloat mouseMoveX = GLfloat(inputPosition().x() - mousePos.x())
+                / (scene()->viewport().width() / rotationSpeed);
+        GLfloat mouseMoveY = GLfloat(inputPosition().y() - mousePos.y())
+                / (scene()->viewport().height() / rotationSpeed);
+        // Apply to rotations
+        xRotation -= mouseMoveX;
+        yRotation -= mouseMoveY;
+        scene()->camera()->setRotations(QPointF(xRotation, yRotation));
+        scene()->camera()->updateViewMatrix(1.0f);
+
+        setPreviousInputPos(inputPosition());
+        setInputPosition(mousePos);
+    }
+}
+
+void Q3DInputHandler::wheelEvent(QWheelEvent *event)
+{
+    // disable zooming if in slice view
+    if (scene()->isSlicingActivated())
+        return;
+
+    // Adjust zoom level based on what zoom range we're in.
+    int zoomLevel = scene()->camera()->zoomLevel();
+    if (zoomLevel > oneToOneZoomLevel)
+        zoomLevel += event->angleDelta().y() / nearZoomRangeDivider;
+    else if (zoomLevel > halfSizeZoomLevel)
+        zoomLevel += event->angleDelta().y() / midZoomRangeDivider;
+    else
+        zoomLevel += event->angleDelta().y() / farZoomRangeDivider;
+    if (zoomLevel > maxZoomLevel)
+        zoomLevel = maxZoomLevel;
+    else if (zoomLevel < minZoomLevel)
+        zoomLevel = minZoomLevel;
+
+    scene()->camera()->setZoomLevel(zoomLevel);
+}
+
+QT_DATAVISUALIZATION_END_NAMESPACE
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