diff options
Diffstat (limited to 'src/quick3d/quick3dextras/qt3dquickwindow.cpp')
| -rw-r--r-- | src/quick3d/quick3dextras/qt3dquickwindow.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/quick3d/quick3dextras/qt3dquickwindow.cpp b/src/quick3d/quick3dextras/qt3dquickwindow.cpp new file mode 100644 index 000000000..96c4bff6a --- /dev/null +++ b/src/quick3d/quick3dextras/qt3dquickwindow.cpp @@ -0,0 +1,254 @@ +/**************************************************************************** +** +** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <Qt3DQuickExtras/qt3dquickwindow.h> +#include <Qt3DQuick/QQmlAspectEngine> +#include <Qt3DRender/qcamera.h> +#include <Qt3DRender/qrenderaspect.h> +#include <Qt3DRender/qrendersettings.h> +#include <Qt3DRender/qrendersurfaceselector.h> +#include <Qt3DInput/qinputaspect.h> +#include <Qt3DInput/qinputsettings.h> +#include <Qt3DLogic/qlogicaspect.h> + +#include <QQmlContext> + +#include <QtGui/qopenglcontext.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DExtras { + +namespace Quick { + +Qt3DQuickWindow::Qt3DQuickWindow(QWindow *parent) + : QQuickWindow(parent) + , m_engine(Q_NULLPTR) + , m_renderAspect(Q_NULLPTR) + , m_inputAspect(Q_NULLPTR) + , m_logicAspect(Q_NULLPTR) + , m_initialized(false) + , m_cameraAspectRatioMode(AutomaticAspectRatio) +{ + setSurfaceType(QSurface::OpenGLSurface); + + resize(1024, 768); + + QSurfaceFormat format; +#ifdef QT_OPENGL_ES_2 + format.setRenderableType(QSurfaceFormat::OpenGLES); +#else + if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGL) { + format.setVersion(4, 3); + format.setProfile(QSurfaceFormat::CoreProfile); + } +#endif + format.setDepthBufferSize(24); + format.setSamples(4); + format.setStencilBufferSize(8); + setFormat(format); + QSurfaceFormat::setDefaultFormat(format); + create(); + + m_engine.reset(new Qt3DCore::Quick::QQmlAspectEngine); + m_renderAspect = new Qt3DRender::QRenderAspect; + m_inputAspect = new Qt3DInput::QInputAspect; + m_logicAspect = new Qt3DLogic::QLogicAspect; + + m_engine->aspectEngine()->registerAspect(m_renderAspect); + m_engine->aspectEngine()->registerAspect(m_inputAspect); + m_engine->aspectEngine()->registerAspect(m_logicAspect); +} + +Qt3DQuickWindow::~Qt3DQuickWindow() +{ +} + +void Qt3DQuickWindow::registerAspect(Qt3DCore::QAbstractAspect *aspect) +{ + Q_ASSERT(!isVisible()); + m_engine->aspectEngine()->registerAspect(aspect); +} + +void Qt3DQuickWindow::registerAspect(const QString &name) +{ + Q_ASSERT(!isVisible()); + m_engine->aspectEngine()->registerAspect(name); +} + +void Qt3DQuickWindow::setSource(const QUrl &source) +{ + m_source = source; +} + +Qt3DCore::Quick::QQmlAspectEngine *Qt3DQuickWindow::engine() const +{ + return m_engine.data(); +} + +void Qt3DQuickWindow::setCameraAspectRatioMode(CameraAspectRatioMode mode) +{ + if (m_cameraAspectRatioMode == mode) + return; + + m_cameraAspectRatioMode = mode; + setCameraAspectModeHelper(); + emit cameraAspectRatioModeChanged(mode); +} + +Qt3DQuickWindow::CameraAspectRatioMode Qt3DQuickWindow::cameraAspectRatioMode() const +{ + return m_cameraAspectRatioMode; +} + +void Qt3DQuickWindow::showEvent(QShowEvent *e) +{ + if (!m_initialized) { + + // Connect to the QQmlAspectEngine's statusChanged signal so that when the QML is loaded + // and th eobjects hav ebeen instantiated, but before we set them on the QAspectEngine we + // can swoop in and set the window surface and camera on the framegraph and ensure the camera + // respects the window's aspect ratio + connect(m_engine.data(), &Qt3DCore::Quick::QQmlAspectEngine::sceneCreated, + this, &Qt3DQuickWindow::onSceneCreated); + + m_engine->setSource(m_source); + + // Set the QQmlIncubationController on the window + // to benefit from asynchronous incubation + m_engine->qmlEngine()->setIncubationController(QQuickWindow::incubationController()); + + m_initialized = true; + } + QQuickWindow::showEvent(e); +} + +void Qt3DQuickWindow::onSceneCreated(QObject *rootObject) +{ + Q_ASSERT(rootObject); + + setWindowSurface(rootObject); + + if (m_cameraAspectRatioMode == AutomaticAspectRatio) { + // Set aspect ratio of first camera to match the window + QList<Qt3DRender::QCamera *> cameras + = rootObject->findChildren<Qt3DRender::QCamera *>(); + if (cameras.isEmpty()) { + qWarning() << "No camera found"; + } else { + m_camera = cameras.first(); + setCameraAspectModeHelper(); + } + } + + // Set ourselves up as a source of input events for the input aspect + Qt3DInput::QInputSettings *inputSettings = rootObject->findChild<Qt3DInput::QInputSettings *>(); + if (inputSettings) { + inputSettings->setEventSource(this); + } else { + qWarning() << "No Input Settings found, keyboard and mouse events won't be handled"; + } +} + +void Qt3DQuickWindow::setWindowSurface(QObject *rootObject) +{ + // Find surface selector in framegraph and set ourselves up as the + // render surface there + Qt3DRender::QRenderSettings *rendererSettings + = rootObject->findChild<Qt3DRender::QRenderSettings *>(); + if (!rendererSettings) { + qWarning() << "No renderer settings component found"; + return; + } + + Qt3DCore::QNode *frameGraphRoot = rendererSettings->activeFrameGraph(); + if (!frameGraphRoot) { + qWarning() << "No active frame graph found"; + return; + } + + Qt3DRender::QRenderSurfaceSelector *surfaceSelector = qobject_cast<Qt3DRender::QRenderSurfaceSelector *>(frameGraphRoot); + if (!surfaceSelector) + surfaceSelector = frameGraphRoot->findChild<Qt3DRender::QRenderSurfaceSelector *>(); + if (!surfaceSelector) { + qWarning() << "No render surface selector found in frame graph"; + return; + } + + surfaceSelector->setSurface(this); +} + +void Qt3DQuickWindow::setCameraAspectModeHelper() +{ + switch (m_cameraAspectRatioMode) { + case AutomaticAspectRatio: + connect(this, &QWindow::widthChanged, this, &Qt3DQuickWindow::updateCameraAspectRatio); + connect(this, &QWindow::heightChanged, this, &Qt3DQuickWindow::updateCameraAspectRatio); + break; + case UserAspectRatio: + disconnect(this, &QWindow::widthChanged, this, &Qt3DQuickWindow::updateCameraAspectRatio); + disconnect(this, &QWindow::heightChanged, this, &Qt3DQuickWindow::updateCameraAspectRatio); + break; + } +} + +void Qt3DQuickWindow::updateCameraAspectRatio() +{ + if (m_camera) { + m_camera->setAspectRatio(static_cast<float>(width()) / + static_cast<float>(height())); + } +} + +} // Quick + +} // Qt3DExtras + +QT_END_NAMESPACE |