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411 lines
16 KiB
411 lines
16 KiB
/****************************************************************************
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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 QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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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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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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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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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QABSTRACTITEMMODEL_H
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#define QABSTRACTITEMMODEL_H
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#include <QtCore/qvariant.h>
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#include <QtCore/qobject.h>
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#include <QtCore/qhash.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Core)
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class QAbstractItemModel;
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class QPersistentModelIndex;
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class Q_CORE_EXPORT QModelIndex
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{
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friend class QAbstractItemModel;
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friend class QProxyModel;
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public:
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inline QModelIndex() : r(-1), c(-1), p(0), m(0) {}
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inline QModelIndex(const QModelIndex &other)
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: r(other.r), c(other.c), p(other.p), m(other.m) {}
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inline ~QModelIndex() { p = 0; m = 0; }
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inline int row() const { return r; }
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inline int column() const { return c; }
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inline void *internalPointer() const { return p; }
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inline qint64 internalId() const { return reinterpret_cast<qint64>(p); }
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inline QModelIndex parent() const;
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inline QModelIndex sibling(int row, int column) const;
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inline QModelIndex child(int row, int column) const;
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inline QVariant data(int role = Qt::DisplayRole) const;
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inline Qt::ItemFlags flags() const;
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inline const QAbstractItemModel *model() const { return m; }
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inline bool isValid() const { return (r >= 0) && (c >= 0) && (m != 0); }
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inline bool operator==(const QModelIndex &other) const
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{ return (other.r == r) && (other.p == p) && (other.c == c) && (other.m == m); }
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inline bool operator!=(const QModelIndex &other) const
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{ return !(*this == other); }
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inline bool operator<(const QModelIndex &other) const
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{
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if (r < other.r) return true;
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if (r == other.r) {
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if (c < other.c) return true;
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if (c == other.c) {
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if (p < other.p) return true;
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if (p == other.p) return m < other.m;
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}
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}
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return false; }
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private:
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inline QModelIndex(int row, int column, void *ptr, const QAbstractItemModel *model);
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int r, c;
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void *p;
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const QAbstractItemModel *m;
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};
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Q_DECLARE_TYPEINFO(QModelIndex, Q_MOVABLE_TYPE);
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#ifndef QT_NO_DEBUG_STREAM
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Q_CORE_EXPORT QDebug operator<<(QDebug, const QModelIndex &);
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#endif
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class QPersistentModelIndexData;
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class Q_CORE_EXPORT QPersistentModelIndex
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{
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public:
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QPersistentModelIndex();
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QPersistentModelIndex(const QModelIndex &index);
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QPersistentModelIndex(const QPersistentModelIndex &other);
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~QPersistentModelIndex();
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bool operator<(const QPersistentModelIndex &other) const;
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bool operator==(const QPersistentModelIndex &other) const;
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inline bool operator!=(const QPersistentModelIndex &other) const
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{ return !operator==(other); }
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QPersistentModelIndex &operator=(const QPersistentModelIndex &other);
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bool operator==(const QModelIndex &other) const;
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bool operator!=(const QModelIndex &other) const;
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QPersistentModelIndex &operator=(const QModelIndex &other);
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operator const QModelIndex&() const;
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int row() const;
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int column() const;
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void *internalPointer() const;
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qint64 internalId() const;
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QModelIndex parent() const;
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QModelIndex sibling(int row, int column) const;
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QModelIndex child(int row, int column) const;
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QVariant data(int role = Qt::DisplayRole) const;
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Qt::ItemFlags flags() const;
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const QAbstractItemModel *model() const;
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bool isValid() const;
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private:
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QPersistentModelIndexData *d;
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friend uint qHash(const QPersistentModelIndex &);
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#ifndef QT_NO_DEBUG_STREAM
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friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);
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#endif
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};
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Q_DECLARE_TYPEINFO(QPersistentModelIndex, Q_MOVABLE_TYPE);
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inline uint qHash(const QPersistentModelIndex &index)
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{ return qHash(index.d); }
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#ifndef QT_NO_DEBUG_STREAM
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Q_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);
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#endif
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template<typename T> class QList;
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typedef QList<QModelIndex> QModelIndexList;
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class QMimeData;
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class QAbstractItemModelPrivate;
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template <class Key, class T> class QMap;
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class Q_CORE_EXPORT QAbstractItemModel : public QObject
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{
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Q_OBJECT
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friend class QPersistentModelIndexData;
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friend class QAbstractItemViewPrivate;
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public:
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explicit QAbstractItemModel(QObject *parent = 0);
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virtual ~QAbstractItemModel();
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bool hasIndex(int row, int column, const QModelIndex &parent = QModelIndex()) const;
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virtual QModelIndex index(int row, int column,
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const QModelIndex &parent = QModelIndex()) const = 0;
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virtual QModelIndex parent(const QModelIndex &child) const = 0;
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inline QModelIndex sibling(int row, int column, const QModelIndex &idx) const
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{ return index(row, column, parent(idx)); }
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virtual int rowCount(const QModelIndex &parent = QModelIndex()) const = 0;
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virtual int columnCount(const QModelIndex &parent = QModelIndex()) const = 0;
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virtual bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
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virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const = 0;
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virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
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virtual QVariant headerData(int section, Qt::Orientation orientation,
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int role = Qt::DisplayRole) const;
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virtual bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,
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int role = Qt::EditRole);
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virtual QMap<int, QVariant> itemData(const QModelIndex &index) const;
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virtual bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles);
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virtual QStringList mimeTypes() const;
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virtual QMimeData *mimeData(const QModelIndexList &indexes) const;
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virtual bool dropMimeData(const QMimeData *data, Qt::DropAction action,
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int row, int column, const QModelIndex &parent);
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virtual Qt::DropActions supportedDropActions() const;
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Qt::DropActions supportedDragActions() const;
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void setSupportedDragActions(Qt::DropActions);
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virtual bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex());
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virtual bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex());
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virtual bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
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virtual bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex());
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inline bool insertRow(int row, const QModelIndex &parent = QModelIndex());
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inline bool insertColumn(int column, const QModelIndex &parent = QModelIndex());
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inline bool removeRow(int row, const QModelIndex &parent = QModelIndex());
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inline bool removeColumn(int column, const QModelIndex &parent = QModelIndex());
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virtual void fetchMore(const QModelIndex &parent);
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virtual bool canFetchMore(const QModelIndex &parent) const;
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virtual Qt::ItemFlags flags(const QModelIndex &index) const;
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virtual void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
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virtual QModelIndex buddy(const QModelIndex &index) const;
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virtual QModelIndexList match(const QModelIndex &start, int role,
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const QVariant &value, int hits = 1,
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Qt::MatchFlags flags =
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Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const;
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virtual QSize span(const QModelIndex &index) const;
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const QHash<int,QByteArray> &roleNames() const;
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#ifdef Q_NO_USING_KEYWORD
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inline QObject *parent() const { return QObject::parent(); }
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#else
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using QObject::parent;
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#endif
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Q_SIGNALS:
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void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
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void headerDataChanged(Qt::Orientation orientation, int first, int last);
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void layoutChanged();
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void layoutAboutToBeChanged();
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#if !defined(Q_MOC_RUN) && !defined(qdoc)
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private: // can only be emitted by QAbstractItemModel
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#endif
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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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void modelAboutToBeReset();
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void modelReset();
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void rowsAboutToBeMoved( const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow );
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void rowsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int row );
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void columnsAboutToBeMoved( const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn );
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void columnsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int column );
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public Q_SLOTS:
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virtual bool submit();
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virtual void revert();
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protected:
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QAbstractItemModel(QAbstractItemModelPrivate &dd, QObject *parent = 0);
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inline QModelIndex createIndex(int row, int column, void *data = 0) const;
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inline QModelIndex createIndex(int row, int column, int id) const;
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inline QModelIndex createIndex(int row, int column, quint32 id) const;
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void encodeData(const QModelIndexList &indexes, QDataStream &stream) const;
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bool decodeData(int row, int column, const QModelIndex &parent, QDataStream &stream);
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void beginInsertRows(const QModelIndex &parent, int first, int last);
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void endInsertRows();
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void beginRemoveRows(const QModelIndex &parent, int first, int last);
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void endRemoveRows();
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bool beginMoveRows(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationRow);
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void endMoveRows();
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void beginInsertColumns(const QModelIndex &parent, int first, int last);
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void endInsertColumns();
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void beginRemoveColumns(const QModelIndex &parent, int first, int last);
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void endRemoveColumns();
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bool beginMoveColumns(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationColumn);
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void endMoveColumns();
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void reset();
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void beginResetModel();
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void endResetModel();
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void changePersistentIndex(const QModelIndex &from, const QModelIndex &to);
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void changePersistentIndexList(const QModelIndexList &from, const QModelIndexList &to);
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QModelIndexList persistentIndexList() const;
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void setRoleNames(const QHash<int,QByteArray> &roleNames);
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private:
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Q_DECLARE_PRIVATE(QAbstractItemModel)
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Q_DISABLE_COPY(QAbstractItemModel)
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};
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inline bool QAbstractItemModel::insertRow(int arow, const QModelIndex &aparent)
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{ return insertRows(arow, 1, aparent); }
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inline bool QAbstractItemModel::insertColumn(int acolumn, const QModelIndex &aparent)
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{ return insertColumns(acolumn, 1, aparent); }
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inline bool QAbstractItemModel::removeRow(int arow, const QModelIndex &aparent)
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{ return removeRows(arow, 1, aparent); }
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inline bool QAbstractItemModel::removeColumn(int acolumn, const QModelIndex &aparent)
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{ return removeColumns(acolumn, 1, aparent); }
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inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, void *adata) const
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{ return QModelIndex(arow, acolumn, adata, this); }
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inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, int aid) const
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#if defined(Q_CC_MSVC)
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#pragma warning( push )
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#pragma warning( disable : 4312 ) // avoid conversion warning on 64-bit
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#endif
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{ return QModelIndex(arow, acolumn, reinterpret_cast<void*>(aid), this); }
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#if defined(Q_CC_MSVC)
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#pragma warning( pop )
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#endif
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inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, quint32 aid) const
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#if defined(Q_CC_MSVC)
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#pragma warning( push )
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#pragma warning( disable : 4312 ) // avoid conversion warning on 64-bit
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#endif
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{ return QModelIndex(arow, acolumn, reinterpret_cast<void*>(aid), this); }
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#if defined(Q_CC_MSVC)
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#pragma warning( pop )
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#endif
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class Q_CORE_EXPORT QAbstractTableModel : public QAbstractItemModel
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{
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Q_OBJECT
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public:
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explicit QAbstractTableModel(QObject *parent = 0);
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~QAbstractTableModel();
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QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) 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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protected:
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QAbstractTableModel(QAbstractItemModelPrivate &dd, QObject *parent);
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private:
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Q_DISABLE_COPY(QAbstractTableModel)
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QModelIndex parent(const QModelIndex &child) const;
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bool hasChildren(const QModelIndex &parent) const;
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};
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class Q_CORE_EXPORT QAbstractListModel : public QAbstractItemModel
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{
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Q_OBJECT
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public:
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explicit QAbstractListModel(QObject *parent = 0);
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~QAbstractListModel();
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QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) 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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protected:
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QAbstractListModel(QAbstractItemModelPrivate &dd, QObject *parent);
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private:
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Q_DISABLE_COPY(QAbstractListModel)
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QModelIndex parent(const QModelIndex &child) const;
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int columnCount(const QModelIndex &parent) const;
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bool hasChildren(const QModelIndex &parent) const;
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};
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// inline implementations
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inline QModelIndex::QModelIndex(int arow, int acolumn, void *adata,
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const QAbstractItemModel *amodel)
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: r(arow), c(acolumn), p(adata), m(amodel) {}
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inline QModelIndex QModelIndex::parent() const
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{ return m ? m->parent(*this) : QModelIndex(); }
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inline QModelIndex QModelIndex::sibling(int arow, int acolumn) const
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{ return m ? (r == arow && c == acolumn) ? *this : m->index(arow, acolumn, m->parent(*this)) : QModelIndex(); }
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inline QModelIndex QModelIndex::child(int arow, int acolumn) const
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{ return m ? m->index(arow, acolumn, *this) : QModelIndex(); }
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inline QVariant QModelIndex::data(int arole) const
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{ return m ? m->data(*this, arole) : QVariant(); }
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inline Qt::ItemFlags QModelIndex::flags() const
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{ return m ? m->flags(*this) : Qt::ItemFlags(0); }
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inline uint qHash(const QModelIndex &index)
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{ return uint((index.row() << 4) + index.column() + index.internalId()); }
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QABSTRACTITEMMODEL_H
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