File indexing completed on 2025-01-26 05:19:14

 /* Atelier KDE Printer Host for 3D Printing
     Copyright (C) <2018>
     Author: Kevin Ottens - ervin@kde.org
 
     This program is free software; you can redistribute it and/or
     modify it under the terms of the GNU General Public License as
     published by the Free Software Foundation; either version 3 of
     the License or any later version accepted by the membership of
     KDE e.V. (or its successor approved by the membership of KDE
     e.V.), which shall act as a proxy defined in Section 14 of
     version 3 of the license.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "cameracontroller.h"
 
 #include <Qt3DRender/QCamera>
 
 namespace
 {
 inline float clampInputs(float input1, float input2)
 {
     float axisValue = input1 + input2;
     return (axisValue < -1) ? -1 : (axisValue > 1) ? 1 : axisValue;
 }
 
 inline float zoomDistance(QVector3D firstPoint, QVector3D secondPoint)
 {
     return (secondPoint - firstPoint).lengthSquared();
 }
 }
 
 CameraController::CameraController(QNode *parent)
     : Qt3DExtras::QAbstractCameraController(parent)
 {
 }
 
 void CameraController::moveCamera(const Qt3DExtras::QAbstractCameraController::InputState &state, float dt)
 {
     auto cam = camera();
     if (!cam) {
         return;
     }
 
     // Mouse
     if (state.leftMouseButtonActive) {
         cam->pan(state.rxAxisValue * lookSpeed() * dt);
         cam->tilt(state.ryAxisValue * lookSpeed() * dt);
     }
 
     // Keyboard
     cam->panAboutViewCenter((state.txAxisValue * lookSpeed()) * dt, QVector3D(0.0f, 0.0f, 1.0f));
     cam->translate(QVector3D(0.0f, 0.0f, state.tyAxisValue * linearSpeed() * dt), Qt3DRender::QCamera::DontTranslateViewCenter);
 }