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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickcontext2dnode_p.h"
#include <QtQuick/private/qsgcontext_p.h>
#include <QtCore/qmath.h>
QT_BEGIN_NAMESPACE
QQuickContext2DNode::QQuickContext2DNode(QQuickCanvasItem* item)
: QSGGeometryNode()
, m_item(item)
, m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4)
, m_texture(0)
, m_size(1, 1)
, m_dirtyGeometry(false)
, m_dirtyTexture(false)
{
setMaterial(&m_materialO);
setOpaqueMaterial(&m_material);
setGeometry(&m_geometry);
setFlag(UsePreprocess, true);
}
QQuickContext2DNode::~QQuickContext2DNode()
{
delete m_texture;
}
void QQuickContext2DNode::setSize(const QSizeF& size)
{
if (m_size != size) {
m_dirtyGeometry = true;
m_size = size;
}
}
void QQuickContext2DNode::preprocess()
{
bool doDirty = false;
QSGDynamicTexture *t = qobject_cast<QSGDynamicTexture *>(m_material.texture());
if (t) {
doDirty = t->updateTexture();
}
if (doDirty) {
m_dirtyTexture = true;
markDirty(DirtyMaterial);
}
}
void QQuickContext2DNode::setTexture(QQuickContext2DTexture* texture)
{
if (texture != m_texture) {
m_dirtyTexture = true;
m_texture = texture;
}
}
void QQuickContext2DNode::update()
{
if (m_dirtyGeometry)
updateGeometry();
if (m_dirtyTexture)
updateTexture();
m_dirtyGeometry = false;
m_dirtyTexture = false;
}
void QQuickContext2DNode::updateTexture()
{
m_material.setTexture(m_texture);
m_materialO.setTexture(m_texture);
markDirty(DirtyMaterial);
}
void QQuickContext2DNode::updateGeometry()
{
QRectF source = m_texture->textureSubRect();
QSGGeometry::updateTexturedRectGeometry(&m_geometry,
QRectF(0, 0, m_size.width(), m_size.height()),
source);
markDirty(DirtyGeometry);
}
QT_END_NAMESPACE
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