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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "viewportnode_p.h"
#include <Qt3DRender/qviewport.h>
#include <Qt3DRender/private/qviewport_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
using namespace Qt3DCore;
ViewportNode::ViewportNode()
: FrameGraphNode(FrameGraphNode::Viewport)
, m_xMin(0.0f)
, m_yMin(0.0f)
, m_xMax(1.0f)
, m_yMax(1.0f)
, m_gamma(2.2f)
{
}
void ViewportNode::syncFromFrontEnd(const QNode *frontEnd, bool firstTime)
{
const QViewport *node = qobject_cast<const QViewport *>(frontEnd);
if (!node)
return;
FrameGraphNode::syncFromFrontEnd(frontEnd, firstTime);
const QRectF oldRect(m_xMin, m_yMin, m_xMax, m_yMax);
if (oldRect != node->normalizedRect()) {
m_xMin = node->normalizedRect().x();
m_yMin = node->normalizedRect().y();
m_xMax = node->normalizedRect().width();
m_yMax = node->normalizedRect().height();
markDirty(AbstractRenderer::FrameGraphDirty);
}
if (node->gamma() != m_gamma) {
m_gamma = node->gamma();
markDirty(AbstractRenderer::FrameGraphDirty);
}
}
float ViewportNode::xMin() const
{
return m_xMin;
}
void ViewportNode::setXMin(float xMin)
{
m_xMin = xMin;
}
float ViewportNode::yMin() const
{
return m_yMin;
}
void ViewportNode::setYMin(float yMin)
{
m_yMin = yMin;
}
float ViewportNode::xMax() const
{
return m_xMax;
}
void ViewportNode::setXMax(float xMax)
{
m_xMax = xMax;
}
float ViewportNode::yMax() const
{
return m_yMax;
}
void ViewportNode::setYMax(float yMax)
{
m_yMax = yMax;
}
float ViewportNode::gamma() const
{
return m_gamma;
}
void ViewportNode::setGamma(float gamma)
{
m_gamma = gamma;
}
QRectF ViewportNode::computeViewport(const QRectF &childViewport, const ViewportNode *parentViewport)
{
QRectF vp(parentViewport->xMin(),
parentViewport->yMin(),
parentViewport->xMax(),
parentViewport->yMax());
if (childViewport.isEmpty()) {
return vp;
} else {
return QRectF(vp.x() + vp.width() * childViewport.x(),
vp.y() + vp.height() * childViewport.y(),
vp.width() * childViewport.width(),
vp.height() * childViewport.height());
}
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE