/****************************************************************************+
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**+
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** Copyright (C) 2010 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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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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#ifndef QTABLEWIDGET_P_H+
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#define QTABLEWIDGET_P_H+
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+
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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. This header file may change+
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// from version to 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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+
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#include <qheaderview.h>+
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#include <qtablewidget.h>+
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#include <qabstractitemmodel.h>+
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#include <private/qabstractitemmodel_p.h>+
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#include <private/qtableview_p.h>+
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#include <private/qwidgetitemdata_p.h>+
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+
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#ifndef QT_NO_TABLEWIDGET+
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+
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QT_BEGIN_NAMESPACE+
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+
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// workaround for VC++ 6.0 linker bug+
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typedef bool(*LessThan)(const QPair<QTableWidgetItem*,int>&,const QPair<QTableWidgetItem*,int>&);+
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+
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class QTableWidgetMimeData : public QMimeData+
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{+
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    Q_OBJECT+
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public:+
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    QList<QTableWidgetItem*> items;+
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};+
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+
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class QTableModelLessThan+
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{+
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public:+
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    inline bool operator()(QTableWidgetItem *i1, QTableWidgetItem *i2) const+
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        { return (*i1 < *i2); }+
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};+
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+
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class QTableModelGreaterThan+
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{+
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public:+
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    inline bool operator()(QTableWidgetItem *i1, QTableWidgetItem *i2) const+
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        { return (*i2 < *i1); }+
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};+
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+
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class QTableModel : public QAbstractTableModel+
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{+
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    Q_OBJECT+
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public:+
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    enum ItemFlagsExtension {+
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        ItemIsHeaderItem = 128+
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    }; // we need this to separate header items from other items+
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+
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    QTableModel(int rows, int columns, QTableWidget *parent);+
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    ~QTableModel();+
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+
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    bool insertRows(int row, int count = 1, const QModelIndex &parent = QModelIndex());+
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    bool insertColumns(int column, int count = 1, const QModelIndex &parent = QModelIndex());+
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+
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    bool removeRows(int row, int count = 1, const QModelIndex &parent = QModelIndex());+
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    bool removeColumns(int column, int count = 1, const QModelIndex &parent = QModelIndex());+
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+
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    void setItem(int row, int column, QTableWidgetItem *item);+
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    QTableWidgetItem *takeItem(int row, int column);+
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    QTableWidgetItem *item(int row, int column) const;+
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    QTableWidgetItem *item(const QModelIndex &index) const;+
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    void removeItem(QTableWidgetItem *item);+
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+
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    void setHorizontalHeaderItem(int section, QTableWidgetItem *item);+
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    void setVerticalHeaderItem(int section, QTableWidgetItem *item);+
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    QTableWidgetItem *takeHorizontalHeaderItem(int section);+
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    QTableWidgetItem *takeVerticalHeaderItem(int section);+
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    QTableWidgetItem *horizontalHeaderItem(int section);+
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    QTableWidgetItem *verticalHeaderItem(int section);+
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+
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    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const+
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        { return QAbstractTableModel::index(row, column, parent); }+
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+
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    QModelIndex index(const QTableWidgetItem *item) const;+
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+
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    void setRowCount(int rows);+
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    void setColumnCount(int columns);+
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+
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    int rowCount(const QModelIndex &parent = QModelIndex()) const;+
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    int columnCount(const QModelIndex &parent = QModelIndex()) const;+
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+
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    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;+
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    bool setData(const QModelIndex &index, const QVariant &value, int role);+
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    bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles);+
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+
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    QMap<int, QVariant> itemData(const QModelIndex &index) const;+
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+
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    QVariant headerData(int section, Qt::Orientation orientation, int role) const;+
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    bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role);+
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+
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    Qt::ItemFlags flags(const QModelIndex &index) const;+
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+
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    void sort(int column, Qt::SortOrder order);+
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    static bool itemLessThan(const QPair<QTableWidgetItem*,int> &left,+
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                             const QPair<QTableWidgetItem*,int> &right);+
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    static bool itemGreaterThan(const QPair<QTableWidgetItem*,int> &left,+
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                                const QPair<QTableWidgetItem*,int> &right);+
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+
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    void ensureSorted(int column, Qt::SortOrder order, int start, int end);+
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    QVector<QTableWidgetItem*> columnItems(int column) const;+
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    void updateRowIndexes(QModelIndexList &indexes, int movedFromRow, int movedToRow);+
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    static QVector<QTableWidgetItem*>::iterator sortedInsertionIterator(+
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        const QVector<QTableWidgetItem*>::iterator &begin,+
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        const QVector<QTableWidgetItem*>::iterator &end,+
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        Qt::SortOrder order, QTableWidgetItem *item);+
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+
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    bool isValid(const QModelIndex &index) const;+
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    inline long tableIndex(int row, int column) const+
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        { return (row * horizontalHeaderItems.count()) + column; }+
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+
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    void clear();+
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    void clearContents();+
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    void itemChanged(QTableWidgetItem *item);+
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+
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    QTableWidgetItem *createItem() const;+
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    const QTableWidgetItem *itemPrototype() const;+
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    void setItemPrototype(const QTableWidgetItem *item);+
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+
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    // dnd+
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    QStringList mimeTypes() const;+
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    QMimeData *mimeData(const QModelIndexList &indexes) const;+
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    bool dropMimeData(const QMimeData *data, Qt::DropAction action,+
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            int row, int column, const QModelIndex &parent);+
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    Qt::DropActions supportedDropActions() const;+
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+
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    QMimeData *internalMimeData()  const;+
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+
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private:+
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    const QTableWidgetItem *prototype;+
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    QVector<QTableWidgetItem*> tableItems;+
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    QVector<QTableWidgetItem*> verticalHeaderItems;+
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    QVector<QTableWidgetItem*> horizontalHeaderItems;+
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+
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    // A cache must be mutable if get-functions should have const modifiers+
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    mutable QModelIndexList cachedIndexes;+
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};+
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+
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class QTableWidgetPrivate : public QTableViewPrivate+
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{+
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    Q_DECLARE_PUBLIC(QTableWidget)+
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public:+
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    QTableWidgetPrivate() : QTableViewPrivate() {}+
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    inline QTableModel *tableModel() const { return qobject_cast<QTableModel*>(model); }+
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    void setup();+
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+
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    // view signals+
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    void _q_emitItemPressed(const QModelIndex &index);+
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    void _q_emitItemClicked(const QModelIndex &index);+
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    void _q_emitItemDoubleClicked(const QModelIndex &index);+
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    void _q_emitItemActivated(const QModelIndex &index);+
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    void _q_emitItemEntered(const QModelIndex &index);+
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    // model signals+
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    void _q_emitItemChanged(const QModelIndex &index);+
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    // selection signals+
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    void _q_emitCurrentItemChanged(const QModelIndex &previous, const QModelIndex &current);+
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    // sorting+
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    void _q_sort();+
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    void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);+
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};+
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+
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class QTableWidgetItemPrivate+
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{+
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public:+
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    QTableWidgetItemPrivate(QTableWidgetItem *item) : q(item), id(-1) {}+
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    QTableWidgetItem *q;+
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    int id;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QT_NO_TABLEWIDGET+
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+
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#endif // QTABLEWIDGET_P_H+
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