From f3e38983d77c72f3121c33a149a58fdf9c64158c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kera=CC=88nen=20Pasi?= <pasi.keranen@digia.com>
Date: Fri, 23 Aug 2013 16:17:29 +0300
Subject: New 3D scene for lights and camera setup for input handlers.
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Change-Id: Ib909bd818364c1646615df7c543d57b07b920a83
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
---
 src/datavis3d/input/q3dinputhandler.cpp | 52 +++++++++++++++++++++++----------
 1 file changed, 37 insertions(+), 15 deletions(-)

(limited to 'src/datavis3d/input/q3dinputhandler.cpp')

diff --git a/src/datavis3d/input/q3dinputhandler.cpp b/src/datavis3d/input/q3dinputhandler.cpp
index 4623a69b..a8bfc19a 100644
--- a/src/datavis3d/input/q3dinputhandler.cpp
+++ b/src/datavis3d/input/q3dinputhandler.cpp
@@ -16,38 +16,46 @@
 **
 ****************************************************************************/
 #include "q3dinputhandler.h"
+#include "q3dcamera.h"
+#include "q3dlight.h"
 
 QT_DATAVIS3D_BEGIN_NAMESPACE
 
-Q3DInputHandler::Q3DInputHandler() :
-    QAbstract3DInputHandler()
+Q3DInputHandler::Q3DInputHandler(QObject *parent) :
+    QAbstract3DInputHandler(parent)
+{
+}
+
+Q3DInputHandler::~Q3DInputHandler()
 {
 }
 
 // Input event listeners
 void Q3DInputHandler::mousePressEvent(QMouseEvent *event, const QPoint &mousePos)
 {
-    QRect mainViewPort = mainViewPortRect();
     if (Qt::LeftButton == event->button()) {
-        if (slicingActivated()) {
-            if (mousePos.x() <= mainViewPort.width()
-                    && mousePos.y() <= mainViewPort.height()) {
+        if (scene()->isSlicingActivated()) {
+            if (scene()->isInputInsideMainView(mousePos)) {
                 setInputState(QDataVis::InputOnOverview);
                 //qDebug() << "Mouse pressed on overview";
-            } else {
+            } 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 (!slicingActivated() && Qt::RightButton == event->button()) {
+    } 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
@@ -63,28 +71,42 @@ void Q3DInputHandler::mouseReleaseEvent(QMouseEvent *event, const QPoint &mouseP
     if (QDataVis::InputRotating == inputState()) {
         // 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(mousePos);
     }
     setInputState(QDataVis::InputNone);
-
 }
 
 void Q3DInputHandler::mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos)
 {
     Q_UNUSED(event);
-    if (QDataVis::InputRotating == inputState())
+    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 (slicingActivated())
+    if (scene()->isSlicingActivated())
         return;
 
     // Adjust zoom level based on what zoom range we're in.
-    int zoomLevel = QAbstract3DInputHandler::zoomLevel();
+    int zoomLevel = scene()->camera()->zoomLevel();
     if (zoomLevel > oneToOneZoomLevel)
         zoomLevel += event->angleDelta().y() / nearZoomRangeDivider;
     else if (zoomLevel > halfSizeZoomLevel)
@@ -96,7 +118,7 @@ void Q3DInputHandler::wheelEvent(QWheelEvent *event)
     else if (zoomLevel < minZoomLevel)
         zoomLevel = minZoomLevel;
 
-    setZoomLevel(zoomLevel);
+    scene()->camera()->setZoomLevel(zoomLevel);
 }
 
 QT_DATAVIS3D_END_NAMESPACE
-- 
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