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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGRAPHICSWIDGET_P_H
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#define QGRAPHICSWIDGET_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of other Qt classes. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <private/qobject_p.h>
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#include "qgraphicsitem_p.h"
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#include "qgraphicswidget.h"
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#include <QtGui/qfont.h>
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#include <QtGui/qpalette.h>
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#include <QtGui/qsizepolicy.h>
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#include <QtGui/qstyle.h>
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QT_BEGIN_NAMESPACE
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class QGraphicsLayout;
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class QStyleOptionTitleBar;
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#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
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class QGraphicsWidgetPrivate : public QGraphicsItemPrivate
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{
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Q_DECLARE_PUBLIC(QGraphicsWidget)
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public:
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QGraphicsWidgetPrivate()
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: margins(0),
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layout(0),
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inheritedPaletteResolveMask(0),
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inheritedFontResolveMask(0),
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inSetGeometry(0),
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polished(0),
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inSetPos(0),
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focusPolicy(Qt::NoFocus),
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focusNext(0),
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focusPrev(0),
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windowFlags(0),
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windowData(0),
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setWindowFrameMargins(false),
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windowFrameMargins(0)
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{ }
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virtual ~QGraphicsWidgetPrivate();
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void init(QGraphicsItem *parentItem, Qt::WindowFlags wFlags);
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qreal titleBarHeight(const QStyleOptionTitleBar &options) const;
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// Margins
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enum {Left, Top, Right, Bottom};
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mutable qreal *margins;
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void ensureMargins() const;
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void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *newScene = 0);
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void setLayout_helper(QGraphicsLayout *l);
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// Layouts
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QGraphicsLayout *layout;
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void setLayoutDirection_helper(Qt::LayoutDirection direction);
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void resolveLayoutDirection();
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// Style
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QPalette palette;
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uint inheritedPaletteResolveMask;
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void setPalette_helper(const QPalette &palette);
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void resolvePalette(uint inheritedMask);
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void updatePalette(const QPalette &palette);
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QPalette naturalWidgetPalette() const;
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QFont font;
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uint inheritedFontResolveMask;
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void setFont_helper(const QFont &font);
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void resolveFont(uint inheritedMask);
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void updateFont(const QFont &font);
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QFont naturalWidgetFont() const;
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// Window specific
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void initStyleOptionTitleBar(QStyleOptionTitleBar *option);
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void adjustWindowFlags(Qt::WindowFlags *wFlags);
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void windowFrameMouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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void windowFrameMousePressEvent(QGraphicsSceneMouseEvent *event);
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void windowFrameMouseMoveEvent(QGraphicsSceneMouseEvent *event);
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void windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent *event);
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void windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent *event);
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bool hasDecoration() const;
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// State
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inline int attributeToBitIndex(Qt::WidgetAttribute att) const
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{
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int bit = -1;
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switch (att) {
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case Qt::WA_SetLayoutDirection: bit = 0; break;
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case Qt::WA_RightToLeft: bit = 1; break;
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case Qt::WA_SetStyle: bit = 2; break;
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case Qt::WA_Resized: bit = 3; break;
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case Qt::WA_DeleteOnClose: bit = 4; break;
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case Qt::WA_NoSystemBackground: bit = 5; break;
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case Qt::WA_OpaquePaintEvent: bit = 6; break;
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case Qt::WA_SetPalette: bit = 7; break;
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case Qt::WA_SetFont: bit = 8; break;
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case Qt::WA_WindowPropagation: bit = 9; break;
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default: break;
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}
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return bit;
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}
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inline void setAttribute(Qt::WidgetAttribute att, bool value)
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{
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int bit = attributeToBitIndex(att);
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if (bit == -1) {
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qWarning("QGraphicsWidget::setAttribute: unsupported attribute %d", int(att));
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return;
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}
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if (value)
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attributes |= (1 << bit);
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else
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attributes &= ~(1 << bit);
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}
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inline bool testAttribute(Qt::WidgetAttribute att) const
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{
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int bit = attributeToBitIndex(att);
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if (bit == -1)
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return false;
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return (attributes & (1 << bit)) != 0;
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}
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quint32 attributes : 10;
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quint32 inSetGeometry : 1;
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quint32 polished: 1;
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quint32 inSetPos : 1;
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// Focus
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Qt::FocusPolicy focusPolicy;
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QGraphicsWidget *focusNext;
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QGraphicsWidget *focusPrev;
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// Windows
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Qt::WindowFlags windowFlags;
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struct WindowData {
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QString windowTitle;
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QStyle::SubControl hoveredSubControl;
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Qt::WindowFrameSection grabbedSection;
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uint buttonMouseOver : 1;
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uint buttonSunken : 1;
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QRectF startGeometry;
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QRect buttonRect;
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WindowData()
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: hoveredSubControl(QStyle::SC_None)
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, grabbedSection(Qt::NoSection)
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, buttonMouseOver(false)
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, buttonSunken(false)
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{}
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} *windowData;
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void ensureWindowData();
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bool setWindowFrameMargins;
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mutable qreal *windowFrameMargins;
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void ensureWindowFrameMargins() const;
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#ifndef QT_NO_ACTION
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QList<QAction *> actions;
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#endif
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};
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#endif //!defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
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QT_END_NAMESPACE
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#endif //QGRAPHICSWIDGET_P_H
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