1 files changed, 124 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcontext2dnode.cpp b/src/quick/items/context2d/qquickcontext2dnode.cpp
new file mode 100644
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--- /dev/null
+++ b/src/quick/items/context2d/qquickcontext2dnode.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation ([email protected])
+**
+** 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