author | Eckhart Koeppen <eckhart.koppen@nokia.com> |
Fri, 16 Apr 2010 11:39:52 +0300 | |
branch | RCL_3 |
changeset 9 | 740e5562c97f |
parent 4 | 3b1da2848fc7 |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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3b1da2848fc7
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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changeset
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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 QtCore 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 QABSTRACTITEMMODEL_P_H |
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#define QABSTRACTITEMMODEL_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 QAbstractItemModel*. This header file may change from version |
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// 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 "private/qobject_p.h" |
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#include "QtCore/qstack.h" |
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#include "QtCore/qset.h" |
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#include "QtCore/qhash.h" |
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QT_BEGIN_NAMESPACE |
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class QPersistentModelIndexData |
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{ |
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public: |
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QPersistentModelIndexData() : model(0) {} |
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QPersistentModelIndexData(const QModelIndex &idx) : index(idx), model(idx.model()) {} |
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QModelIndex index; |
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QAtomicInt ref; |
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const QAbstractItemModel *model; |
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static QPersistentModelIndexData *create(const QModelIndex &index); |
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static void destroy(QPersistentModelIndexData *data); |
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}; |
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class Q_CORE_EXPORT QAbstractItemModelPrivate : public QObjectPrivate |
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{ |
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Q_DECLARE_PUBLIC(QAbstractItemModel) |
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public: |
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QAbstractItemModelPrivate() : QObjectPrivate(), supportedDragActions(-1), roleNames(defaultRoleNames()) {} |
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void removePersistentIndexData(QPersistentModelIndexData *data); |
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void movePersistentIndexes(QVector<QPersistentModelIndexData *> indexes, int change, const QModelIndex &parent, Qt::Orientation orientation); |
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void rowsAboutToBeInserted(const QModelIndex &parent, int first, int last); |
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void rowsInserted(const QModelIndex &parent, int first, int last); |
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void rowsAboutToBeRemoved(const QModelIndex &parent, int first, int last); |
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void rowsRemoved(const QModelIndex &parent, int first, int last); |
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void columnsAboutToBeInserted(const QModelIndex &parent, int first, int last); |
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void columnsInserted(const QModelIndex &parent, int first, int last); |
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void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last); |
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void columnsRemoved(const QModelIndex &parent, int first, int last); |
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static QAbstractItemModel *staticEmptyModel(); |
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static bool variantLessThan(const QVariant &v1, const QVariant &v2); |
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void itemsAboutToBeMoved(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation); |
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void itemsMoved(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation); |
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bool allowMove(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation); |
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inline QModelIndex createIndex(int row, int column, void *data = 0) const { |
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return q_func()->createIndex(row, column, data); |
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} |
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inline QModelIndex createIndex(int row, int column, int id) const { |
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return q_func()->createIndex(row, column, id); |
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} |
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inline bool indexValid(const QModelIndex &index) const { |
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return (index.row() >= 0) && (index.column() >= 0) && (index.model() == q_func()); |
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} |
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inline void invalidatePersistentIndexes() { |
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foreach (QPersistentModelIndexData *data, persistent.indexes) { |
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data->index = QModelIndex(); |
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data->model = 0; |
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} |
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persistent.indexes.clear(); |
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} |
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/*! |
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\internal |
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clean the QPersistentModelIndex relative to the index if there is one. |
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To be used before an index is invalided |
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*/ |
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inline void invalidatePersistentIndex(const QModelIndex &index) { |
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QHash<QModelIndex, QPersistentModelIndexData *>::iterator it = persistent.indexes.find(index); |
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if(it != persistent.indexes.end()) { |
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QPersistentModelIndexData *data = *it; |
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persistent.indexes.erase(it); |
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data->index = QModelIndex(); |
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data->model = 0; |
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} |
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} |
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struct Change { |
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Change() : first(-1), last(-1) {} |
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Change(const Change &c) : parent(c.parent), first(c.first), last(c.last) {} |
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Change(const QModelIndex &p, int f, int l) : parent(p), first(f), last(l) {} |
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QModelIndex parent; |
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int first, last; |
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bool isValid() { return first >= 0 && last >= 0; } |
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}; |
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QStack<Change> changes; |
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struct Persistent { |
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Persistent() {} |
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QHash<QModelIndex, QPersistentModelIndexData *> indexes; |
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QStack<QVector<QPersistentModelIndexData *> > moved; |
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QStack<QVector<QPersistentModelIndexData *> > invalidated; |
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void insertMultiAtEnd(const QModelIndex& key, QPersistentModelIndexData *data); |
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} persistent; |
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Qt::DropActions supportedDragActions; |
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QHash<int,QByteArray> roleNames; |
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static const QHash<int,QByteArray> &defaultRoleNames(); |
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}; |
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QT_END_NAMESPACE |
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#endif // QABSTRACTITEMMODEL_P_H |