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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, 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.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QTREEWIDGET_P_H
-#define QTREEWIDGET_P_H
-
-//
-// W A R N I N G
-// -------------
-//
-// This file is not part of the Qt API. This header file may change
-// from version to version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QtCore/qabstractitemmodel.h>
-#include <private/qabstractitemmodel_p.h>
-#include <QtCore/qpair.h>
-#include <QtCore/qbasictimer.h>
-#include <QtGui/qtreewidget.h>
-#include <private/qtreeview_p.h>
-#include <QtGui/qheaderview.h>
-
-#ifndef QT_NO_TREEWIDGET
-
-QT_BEGIN_NAMESPACE
-
-class QTreeWidgetItem;
-class QTreeWidgetItemIterator;
-class QTreeModelPrivate;
-
-class QTreeModel : public QAbstractItemModel
-{
- Q_OBJECT
- friend class QTreeWidget;
- friend class QTreeWidgetPrivate;
- friend class QTreeWidgetItem;
- friend class QTreeWidgetItemPrivate;
- friend class QTreeWidgetItemIterator;
- friend class QTreeWidgetItemIteratorPrivate;
-
-public:
- explicit QTreeModel(int columns = 0, QTreeWidget *parent = 0);
- ~QTreeModel();
-
- inline QTreeWidget *view() const
- { return qobject_cast<QTreeWidget*>(QObject::parent()); }
-
- void clear();
- void setColumnCount(int columns);
-
- QTreeWidgetItem *item(const QModelIndex &index) const;
- void itemChanged(QTreeWidgetItem *item);
-
- QModelIndex index(const QTreeWidgetItem *item, int column) const;
- QModelIndex index(int row, int column, const QModelIndex &parent) const;
- QModelIndex parent(const QModelIndex &child) const;
- int rowCount(const QModelIndex &parent) const;
- int columnCount(const QModelIndex &parent = QModelIndex()) const;
- bool hasChildren(const QModelIndex &parent) const;
-
- QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
- bool setData(const QModelIndex &index, const QVariant &value, int role);
-
- QMap<int, QVariant> itemData(const QModelIndex &index) const;
-
- QVariant headerData(int section, Qt::Orientation orientation, int role) const;
- bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,
- int role);
-
- Qt::ItemFlags flags(const QModelIndex &index) const;
-
- void sort(int column, Qt::SortOrder order);
- void ensureSorted(int column, Qt::SortOrder order,
- int start, int end, const QModelIndex &parent);
- static bool itemLessThan(const QPair<QTreeWidgetItem*,int> &left,
- const QPair<QTreeWidgetItem*,int> &right);
- static bool itemGreaterThan(const QPair<QTreeWidgetItem*,int> &left,
- const QPair<QTreeWidgetItem*,int> &right);
- static QList<QTreeWidgetItem*>::iterator sortedInsertionIterator(
- const QList<QTreeWidgetItem*>::iterator &begin,
- const QList<QTreeWidgetItem*>::iterator &end,
- Qt::SortOrder order, QTreeWidgetItem *item);
-
- bool insertRows(int row, int count, const QModelIndex &);
- bool insertColumns(int column, int count, const QModelIndex &);
-
- bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
-
- // dnd
- QStringList mimeTypes() const;
- QMimeData *mimeData(const QModelIndexList &indexes) const;
- bool dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent);
- Qt::DropActions supportedDropActions() const;
-
- QMimeData *internalMimeData() const;
-
- inline QModelIndex createIndexFromItem(int row, int col, QTreeWidgetItem *item) const
- { return createIndex(row, col, item); }
-
-protected:
- QTreeModel(QTreeModelPrivate &, QTreeWidget *parent = 0);
- void emitDataChanged(QTreeWidgetItem *item, int column);
- void beginInsertItems(QTreeWidgetItem *parent, int row, int count);
- void endInsertItems();
- void beginRemoveItems(QTreeWidgetItem *parent, int row, int count);
- void endRemoveItems();
- void sortItems(QList<QTreeWidgetItem*> *items, int column, Qt::SortOrder order);
- void timerEvent(QTimerEvent *);
-
-private:
- QTreeWidgetItem *rootItem;
- QTreeWidgetItem *headerItem;
-
- mutable QModelIndexList cachedIndexes;
- QList<QTreeWidgetItemIterator*> iterators;
-
- mutable QBasicTimer sortPendingTimer;
- mutable bool skipPendingSort; //while doing internal operation we don't care about sorting
- bool inline executePendingSort() const;
-
- bool isChanging() const;
-
-private:
- Q_DECLARE_PRIVATE(QTreeModel)
-public:
- struct SkipSorting
- {
- const QTreeModel * const model;
- const bool previous;
- SkipSorting(const QTreeModel *m) : model(m), previous(model->skipPendingSort)
- { model->skipPendingSort = true; }
- ~SkipSorting() { model->skipPendingSort = previous; }
- };
- friend struct SkipSorting;
-};
-
-QT_BEGIN_INCLUDE_NAMESPACE
-#include "private/qabstractitemmodel_p.h"
-QT_END_INCLUDE_NAMESPACE
-
-class QTreeModelPrivate : public QAbstractItemModelPrivate
-{
- Q_DECLARE_PUBLIC(QTreeModel)
-};
-
-class QTreeWidgetItemPrivate
-{
-public:
- QTreeWidgetItemPrivate(QTreeWidgetItem *item)
- : q(item), disabled(false), selected(false), rowGuess(-1), policy(QTreeWidgetItem::DontShowIndicatorWhenChildless) {}
- void propagateDisabled(QTreeWidgetItem *item);
- void sortChildren(int column, Qt::SortOrder order, bool climb);
- QTreeWidgetItem *q;
- QVariantList display;
- uint disabled : 1;
- uint selected : 1;
- int rowGuess;
- QTreeWidgetItem::ChildIndicatorPolicy policy;
-};
-
-
-inline bool QTreeModel::executePendingSort() const
-{
- if (!skipPendingSort && sortPendingTimer.isActive() && !isChanging()) {
- sortPendingTimer.stop();
- int column = view()->header()->sortIndicatorSection();
- Qt::SortOrder order = view()->header()->sortIndicatorOrder();
- QTreeModel *that = const_cast<QTreeModel*>(this);
- that->sort(column, order);
- return true;
- }
- return false;
-}
-
-class QTreeWidgetPrivate : public QTreeViewPrivate
-{
- friend class QTreeModel;
- Q_DECLARE_PUBLIC(QTreeWidget)
-public:
- QTreeWidgetPrivate() : QTreeViewPrivate(), explicitSortColumn(-1) {}
- inline QTreeModel *treeModel() const { return qobject_cast<QTreeModel*>(model); }
- inline QModelIndex index(const QTreeWidgetItem *item, int column = 0) const
- { return treeModel()->index(item, column); }
- inline QTreeWidgetItem *item(const QModelIndex &index) const
- { return treeModel()->item(index); }
- void _q_emitItemPressed(const QModelIndex &index);
- void _q_emitItemClicked(const QModelIndex &index);
- void _q_emitItemDoubleClicked(const QModelIndex &index);
- void _q_emitItemActivated(const QModelIndex &index);
- void _q_emitItemEntered(const QModelIndex &index);
- void _q_emitItemChanged(const QModelIndex &index);
- void _q_emitItemExpanded(const QModelIndex &index);
- void _q_emitItemCollapsed(const QModelIndex &index);
- void _q_emitCurrentItemChanged(const QModelIndex &previous, const QModelIndex &index);
- void _q_sort();
- void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
- void _q_selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
-
- // used by QTreeWidgetItem::sortChildren to make sure the column argument is used
- int explicitSortColumn;
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_TREEWIDGET
-
-#endif // QTREEWIDGET_P_H
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