/**************************************************************************** ** ** Copyright (C) 2009 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 #include #include #include #include #include #include #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(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 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 &left, const QPair &right); static bool itemGreaterThan(const QPair &left, const QPair &right); static QList::iterator sortedInsertionIterator( const QList::iterator &begin, const QList::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 *items, int column, Qt::SortOrder order); void timerEvent(QTimerEvent *); private: QTreeWidgetItem *rootItem; QTreeWidgetItem *headerItem; mutable QModelIndexList cachedIndexes; QList 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(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 *model() const { return qobject_cast(q_func()->model()); } inline QModelIndex index(const QTreeWidgetItem *item, int column = 0) const { return model()->index(item, column); } inline QTreeWidgetItem *item(const QModelIndex &index) const { return model()->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