aboutsummaryrefslogtreecommitdiffstats
path: root/src/quick/items/context2d/qquickcanvasitemnode.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/quick/items/context2d/qquickcanvasitemnode.cpp')
-rw-r--r--src/quick/items/context2d/qquickcanvasitemnode.cpp125
1 files changed, 125 insertions, 0 deletions
diff --git a/src/quick/items/context2d/qquickcanvasitemnode.cpp b/src/quick/items/context2d/qquickcanvasitemnode.cpp
new file mode 100644
index 0000000000..307d5716e6
--- /dev/null
+++ b/src/quick/items/context2d/qquickcanvasitemnode.cpp
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** 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 "qquickcanvasitemnode_p.h"
+
+#include <QtQuick/private/qsgcontext_p.h>
+#include <QtCore/qmath.h>
+
+QT_BEGIN_NAMESPACE
+
+
+QQuickCanvasItemNode::QQuickCanvasItemNode()
+ : QSGGeometryNode()
+ , 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);
+}
+
+QQuickCanvasItemNode::~QQuickCanvasItemNode()
+{
+ delete m_texture;
+}
+
+// Must be called before this node is added to SG
+void QQuickCanvasItemNode::setCallback(QQuickCanvasItemNode::Callback *cb)
+{
+ m_cb = cb;
+ setFlag(UsePreprocess, true);
+}
+
+void QQuickCanvasItemNode::setSize(const QSizeF& size)
+{
+ if (m_size != size) {
+ m_dirtyGeometry = true;
+ m_size = size;
+ }
+}
+
+void QQuickCanvasItemNode::preprocess()
+{
+ if (m_cb)
+ m_cb->process();
+}
+
+void QQuickCanvasItemNode::setTexture(QSGDynamicTexture* texture)
+{
+ if (texture != m_texture) {
+ m_dirtyTexture = true;
+ m_texture = texture;
+ }
+}
+
+void QQuickCanvasItemNode::update()
+{
+ if (m_dirtyGeometry)
+ updateGeometry();
+ if (m_dirtyTexture)
+ updateTexture();
+
+ m_dirtyGeometry = false;
+ m_dirtyTexture = false;
+}
+
+void QQuickCanvasItemNode::updateTexture()
+{
+ m_material.setTexture(m_texture);
+ m_materialO.setTexture(m_texture);
+ markDirty(DirtyMaterial);
+}
+
+void QQuickCanvasItemNode::updateGeometry()
+{
+ QRectF source = m_texture->normalizedTextureSubRect();
+ QSGGeometry::updateTexturedRectGeometry(&m_geometry,
+ QRectF(0, 0, m_size.width(), m_size.height()),
+ source);
+ markDirty(DirtyGeometry);
+}
+
+QT_END_NAMESPACE
+