diff options
Diffstat (limited to 'src/quick/scenegraph/coreapi/qsgnodeupdater_p.h')
-rw-r--r-- | src/quick/scenegraph/coreapi/qsgnodeupdater_p.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h b/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h new file mode 100644 index 0000000000..446bdefdc5 --- /dev/null +++ b/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** 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. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef NODEUPDATER_P_H +#define NODEUPDATER_P_H + +#include "qsgnode.h" +#include <QtGui/private/qdatabuffer_p.h> + +QT_BEGIN_NAMESPACE + +class Q_QUICK_EXPORT QSGNodeUpdater +{ +public: + QSGNodeUpdater(); + + virtual void updateStates(QSGNode *n); + virtual bool isNodeBlocked(QSGNode *n, QSGNode *root) const; + + void setToplevelOpacity(qreal alpha) { m_opacity_stack.last() = alpha; } + qreal toplevelOpacity() const { return m_opacity_stack.last(); } + +protected: + virtual void enterTransformNode(QSGTransformNode *); + virtual void leaveTransformNode(QSGTransformNode *); + void enterClipNode(QSGClipNode *c); + void leaveClipNode(QSGClipNode *c); + void enterOpacityNode(QSGOpacityNode *o); + void leaveOpacityNode(QSGOpacityNode *o); + void enterGeometryNode(QSGGeometryNode *); + void leaveGeometryNode(QSGGeometryNode *); + + void visitNode(QSGNode *n); + void visitChildren(QSGNode *n); + + + QDataBuffer<const QMatrix4x4 *> m_combined_matrix_stack; + QDataBuffer<qreal> m_opacity_stack; + const QSGClipNode *m_current_clip; + + int m_force_update; + + qreal m_toplevel_alpha; +}; + +QT_END_NAMESPACE + +#endif // NODEUPDATER_P_H |