Move defaults and geometries out of Qt3DRender and into Qt3DExtras

QBoundingVolumeDebug has been disabled for now. Will be re-enabled later on.

Change-Id: Id6b0abab2ec2aa697330bd20d782f9d104d25d50
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 197 insertions, 0 deletions

diff --git a/src/extras/defaults/qforwardrenderer.cpp b/src/extras/defaults/qforwardrenderer.cpp
new file mode 100644
index 000000000..8e6dc9425
--- /dev/null
+++ b/src/extras/defaults/qforwardrenderer.cpp
@@ -0,0 +1,197 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qforwardrenderer.h"
+#include "qforwardrenderer_p.h"
+
+#include <Qt3DRender/qviewport.h>
+#include <Qt3DRender/qcameraselector.h>
+#include <Qt3DRender/qclearbuffers.h>
+#include <Qt3DRender/qfilterkey.h>
+#include <Qt3DRender/qfrustumculling.h>
+#include <Qt3DRender/qrendersurfaceselector.h>
+
+QT_BEGIN_NAMESPACE
+
+using namespace Qt3DRender;
+
+namespace Qt3DExtras {
+
+QForwardRendererPrivate::QForwardRendererPrivate()
+    : QTechniqueFilterPrivate()
+    , m_surfaceSelector(new QRenderSurfaceSelector)
+    , m_viewport(new QViewport())
+    , m_cameraSelector(new QCameraSelector())
+    , m_clearBuffer(new QClearBuffers())
+    , m_frustumCulling(new QFrustumCulling())
+{
+}
+
+void QForwardRendererPrivate::init()
+{
+    Q_Q(QForwardRenderer);
+
+    m_frustumCulling->setParent(m_clearBuffer);
+    m_clearBuffer->setParent(m_cameraSelector);
+    m_cameraSelector->setParent(m_viewport);
+    m_viewport->setParent(m_surfaceSelector);
+    m_surfaceSelector->setParent(q);
+
+    m_viewport->setNormalizedRect(QRectF(0.0f, 0.0f, 1.0f, 1.0f));
+    m_clearBuffer->setClearColor(Qt::white);
+    m_clearBuffer->setBuffers(QClearBuffers::ColorDepthBuffer);
+
+    QFilterKey *forwardRenderingStyle = new QFilterKey(q);
+    forwardRenderingStyle->setName(QStringLiteral("renderingStyle"));
+    forwardRenderingStyle->setValue(QStringLiteral("forward"));
+    q->addMatch(forwardRenderingStyle);
+}
+
+/*!
+    \class Qt3DRender::QForwardRenderer
+    \brief The Qt3DRender::QForwardRenderer provides a default \l {QFrameGraph}{FrameGraph} implementation of a forward renderer.
+    \inmodule Qt3DRender
+    \since 5.5
+
+    Forward rendering is how OpenGL is traditionally. It renders directly to the backbuffer
+    one object at a time shading each one as it goes.
+
+    Internally the Qt3DRender::QForwardRenderer is a subclass of Qt3DRender::QTechniqueFilter.
+    This a is a single leaf Framegraph tree which contains a Qt3DRender::QViewport, a Qt3DRender::QCameraSelector
+    and a Qt3DRender::QClearBuffers.
+    The Qt3DRender::QForwardRenderer has a default requirement annotation whose name is "renderingStyle" and value "forward".
+    If you need to filter out your techniques, you should do so based on that annotation.
+
+    By default the viewport occupies the whole screen and the clear color is white. Frustum culling is also enabled.
+*/
+
+/*!
+    Constructs a new Qt3DRender::QForwardRenderer instance with parent object \a parent.
+ */
+QForwardRenderer::QForwardRenderer(QNode *parent)
+    : QTechniqueFilter(*new QForwardRendererPrivate, parent)
+{
+    Q_D(QForwardRenderer);
+    QObject::connect(d->m_clearBuffer, SIGNAL(clearColorChanged(const QColor &)), this, SIGNAL(clearColorChanged(const QColor &)));
+    QObject::connect(d->m_viewport, SIGNAL(normalizedRectChanged(const QRectF &)), this, SIGNAL(viewportRectChanged(const QRectF &)));
+    QObject::connect(d->m_cameraSelector, SIGNAL(cameraChanged(Qt3DCore::QEntity *)), this, SIGNAL(cameraChanged(Qt3DCore::QEntity *)));
+    QObject::connect(d->m_surfaceSelector, SIGNAL(surfaceChanged(QObject *)), this, SIGNAL(surfaceChanged(QObject *)));
+    d->init();
+}
+
+/*!
+    Destroys the QForwardRenderer instance.
+*/
+QForwardRenderer::~QForwardRenderer()
+{
+}
+
+void QForwardRenderer::setViewportRect(const QRectF &viewportRect)
+{
+    Q_D(QForwardRenderer);
+    d->m_viewport->setNormalizedRect(viewportRect);
+}
+
+void QForwardRenderer::setClearColor(const QColor &clearColor)
+{
+    Q_D(QForwardRenderer);
+    d->m_clearBuffer->setClearColor(clearColor);
+}
+
+/*!
+    Sets the camera which should be used to render the scene to \a camera.
+
+    \note A camera is a QEntity having a QCameraLens as one of its components.
+*/
+void QForwardRenderer::setCamera(Qt3DCore::QEntity *camera)
+{
+    Q_D(QForwardRenderer);
+    d->m_cameraSelector->setCamera(camera);
+}
+
+void QForwardRenderer::setSurface(QObject *surface)
+{
+    Q_D(QForwardRenderer);
+    d->m_surfaceSelector->setSurface(surface);
+}
+
+/*!
+    \property Qt3DRender::QForwardRenderer::viewportRect
+
+    Holds the current viewport normalizedRect.
+ */
+QRectF QForwardRenderer::viewportRect() const
+{
+    Q_D(const QForwardRenderer);
+    return d->m_viewport->normalizedRect();
+}
+
+/*!
+    \property Qt3DRender::QForwardRenderer::clearColor
+
+    Holds the current clearColor.
+*/
+QColor QForwardRenderer::clearColor() const
+{
+    Q_D(const QForwardRenderer);
+    return d->m_clearBuffer->clearColor();
+}
+
+/*!
+    \property Qt3DRender::QForwardRenderer::camera
+
+    Holds the current QEntity camera used to render the scene.
+
+    \note A camera is a QEntity that has a QCameraLens as one of its components.
+*/
+Qt3DCore::QEntity *QForwardRenderer::camera() const
+{
+    Q_D(const QForwardRenderer);
+    return d->m_cameraSelector->camera();
+}
+
+QObject *QForwardRenderer::surface() const
+{
+    Q_D(const QForwardRenderer);
+    return d->m_surfaceSelector->surface();
+}
+
+} // namespace Qt3DExtras
+
+QT_END_NAMESPACE