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| ** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). |
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| ** This file is part of the Qt3D module of the Qt Toolkit. |
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| |
| #include "scene.h" |
| |
| #include <QtCore/QDebug> |
| #include <QtCore/QTimer> |
| #include <QtCore/QDateTime> |
| |
| #include <QtGui/QPainter> |
| #include <Qt3DRender/QPaintedTextureImage> |
| #include <Qt3DRender/QTexture> |
| |
| #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) |
| { |
| int w = painter->device()->width(); |
| int h = painter->device()->height(); |
| |
| // 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; |
| } |