Revision control
++ // Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "scene.h"
++
++ #include <QtCore/QDebug>
++ #include <QtCore/QTimer>
++ #include <QtCore/QDateTime>
++
++ #include <QtGui/QPainter>
++ #include <QtGui/qquaternion.h>
++
++ #include <Qt3DRender/QPaintedTextureImage>
++ #include <Qt3DRender/QTexture>
++ #include <Qt3DRender/QGeometryRenderer>
++
++ #include <Qt3DExtras/QCuboidMesh>
++ #include <Qt3DExtras/QDiffuseMapMaterial>
++
++ class MyTextureImage : public Qt3DRender::QPaintedTextureImage
++ {
++ public:
++ MyTextureImage(int w, int h)
++ {
++ setSize(QSize(w, h));
++ }
++
++ protected:
++ void paint(QPainter *painter) override
++ {
++ int w = painter->device()->width();
++ int h = painter->device()->height();
++
++ painter->setViewport(0, h, w, -h);
++
++ // clear to white
++ painter->fillRect(0, 0, w, h, QColor(255, 255, 255));
++
++ // draw some text
++ painter->setPen(QColor(255, 0, 0));
++ painter->setFont(QFont("Times", 30, QFont::Normal, true));
++ painter->drawText(w / 8, h / 6, QDateTime::currentDateTime().toString());
++
++ painter->setPen(QPen(QBrush(QColor(0, 0, 0)) ,10));
++ painter->setBrush(QColor(0, 0, 255));
++
++ // draw some circles
++ for (int i = 0; i < m_circleCount; i++) {
++ float r = w / 8.f;
++ float cw = 0.25 * w + 0.5 * h * (i % 2);
++ float ch = 0.375 * w + 0.375 * h * (i / 2);
++ painter->drawEllipse(QPointF(cw, ch), r, r);
++ }
++
++ m_circleCount = (m_circleCount % 4) + 1;
++ }
++
++ int m_circleCount = 1;
++ };
++
++ Scene::Scene(Qt3DCore::QEntity *rootEntity)
++ : m_rootEntity(rootEntity)
++ {
++ // Cuboid shape data
++ Qt3DExtras::QCuboidMesh *cuboid = new Qt3DExtras::QCuboidMesh();
++
++ // CuboidMesh Transform
++ m_transform = new Qt3DCore::QTransform();
++ m_transform->setScale(4.0f);;
++
++ // create texture
++ m_paintedTextureImage = new MyTextureImage(128, 128);
++ m_paintedTextureImage->update();
++
++ Qt3DRender::QTexture2D *tex = new Qt3DRender::QTexture2D();
++ tex->addTextureImage(m_paintedTextureImage);
++
++ Qt3DExtras::QDiffuseMapMaterial *mat = new Qt3DExtras::QDiffuseMapMaterial();
++ mat->setAmbient(QColor(64, 64, 64));
++ mat->setSpecular(QColor(255, 255, 255));
++ mat->setDiffuse(tex);
++
++ //Cuboid
++ m_cuboidEntity = new Qt3DCore::QEntity(m_rootEntity);
++ m_cuboidEntity->addComponent(cuboid);
++ m_cuboidEntity->addComponent(mat);
++ m_cuboidEntity->addComponent(m_transform);
++
++ QTimer *timer = new QTimer(this);
++ connect(timer, &QTimer::timeout, this, &Scene::updateTimer);
++ timer->start(50);
++ }
++
++ Scene::~Scene()
++ {
++ }
++
++ void Scene::redrawTexture()
++ {
++ m_paintedTextureImage->update();
++ }
++
++ void Scene::setSize(QSize size)
++ {
++ m_paintedTextureImage->setSize(size);
++ }
++
++ void Scene::updateTimer()
++ {
++ m_transform->setRotation(QQuaternion::fromAxisAndAngle(0, 1, 0, m_angle));
++ m_angle += 0.4f;
++ }