/****************************************************************************
**
** Copyright (C) 2011 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the 
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
** 
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
****************************************************************************/

#ifndef QSORTFILTERPROXYMODEL_H
#define QSORTFILTERPROXYMODEL_H

#include <QtGui/qabstractproxymodel.h>

#ifndef QT_NO_SORTFILTERPROXYMODEL

#include <QtCore/qregexp.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QSortFilterProxyModelPrivate;
class QSortFilterProxyModelLessThan;
class QSortFilterProxyModelGreaterThan;

class Q_GUI_EXPORT QSortFilterProxyModel : public QAbstractProxyModel
{
    friend class QSortFilterProxyModelLessThan;
    friend class QSortFilterProxyModelGreaterThan;

    Q_OBJECT
    Q_PROPERTY(QRegExp filterRegExp READ filterRegExp WRITE setFilterRegExp)
    Q_PROPERTY(int filterKeyColumn READ filterKeyColumn WRITE setFilterKeyColumn)
    Q_PROPERTY(bool dynamicSortFilter READ dynamicSortFilter WRITE setDynamicSortFilter)
    Q_PROPERTY(Qt::CaseSensitivity filterCaseSensitivity READ filterCaseSensitivity WRITE setFilterCaseSensitivity)
    Q_PROPERTY(Qt::CaseSensitivity sortCaseSensitivity READ sortCaseSensitivity WRITE setSortCaseSensitivity)
    Q_PROPERTY(bool isSortLocaleAware READ isSortLocaleAware WRITE setSortLocaleAware)
    Q_PROPERTY(int sortRole READ sortRole WRITE setSortRole)
    Q_PROPERTY(int filterRole READ filterRole WRITE setFilterRole)

public:
    QSortFilterProxyModel(QObject *parent = 0);
    ~QSortFilterProxyModel();

    void setSourceModel(QAbstractItemModel *sourceModel);

    QModelIndex mapToSource(const QModelIndex &proxyIndex) const;
    QModelIndex mapFromSource(const QModelIndex &sourceIndex) const;

    QItemSelection mapSelectionToSource(const QItemSelection &proxySelection) const;
    QItemSelection mapSelectionFromSource(const QItemSelection &sourceSelection) const;

    QRegExp filterRegExp() const;
    void setFilterRegExp(const QRegExp &regExp);

    int filterKeyColumn() const;
    void setFilterKeyColumn(int column);

    Qt::CaseSensitivity filterCaseSensitivity() const;
    void setFilterCaseSensitivity(Qt::CaseSensitivity cs);

    Qt::CaseSensitivity sortCaseSensitivity() const;
    void setSortCaseSensitivity(Qt::CaseSensitivity cs);

    bool isSortLocaleAware() const;
    void setSortLocaleAware(bool on);

    int sortColumn() const;
    Qt::SortOrder sortOrder() const;

    bool dynamicSortFilter() const;
    void setDynamicSortFilter(bool enable);

    int sortRole() const;
    void setSortRole(int role);

    int filterRole() const;
    void setFilterRole(int role);

public Q_SLOTS:
    void setFilterRegExp(const QString &pattern);
    void setFilterWildcard(const QString &pattern);
    void setFilterFixedString(const QString &pattern);
    void clear();
    void invalidate();

protected:
    virtual bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
    virtual bool filterAcceptsColumn(int source_column, const QModelIndex &source_parent) const;
    virtual bool lessThan(const QModelIndex &left, const QModelIndex &right) const;

    void filterChanged();
    void invalidateFilter();

public:
#ifdef Q_NO_USING_KEYWORD
    inline QObject *parent() const { return QObject::parent(); }
#else
    using QObject::parent;
#endif

    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
    QModelIndex parent(const QModelIndex &child) const;

    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;
    bool hasChildren(const QModelIndex &parent = QModelIndex()) const;

    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);

    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
    bool setHeaderData(int section, Qt::Orientation orientation,
            const QVariant &value, int role = Qt::EditRole);

    QMimeData *mimeData(const QModelIndexList &indexes) const;
    bool dropMimeData(const QMimeData *data, Qt::DropAction action,
                      int row, int column, const QModelIndex &parent);

    bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex());
    bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex());
    bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
    bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex());

    void fetchMore(const QModelIndex &parent);
    bool canFetchMore(const QModelIndex &parent) const;
    Qt::ItemFlags flags(const QModelIndex &index) const;

    QModelIndex buddy(const QModelIndex &index) const;
    QModelIndexList match(const QModelIndex &start, int role,
                          const QVariant &value, int hits = 1,
                          Qt::MatchFlags flags =
                          Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const;
    QSize span(const QModelIndex &index) const;
    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);

    QStringList mimeTypes() const;
    Qt::DropActions supportedDropActions() const;
private:
    Q_DECLARE_PRIVATE(QSortFilterProxyModel)
    Q_DISABLE_COPY(QSortFilterProxyModel)

    Q_PRIVATE_SLOT(d_func(), void _q_sourceDataChanged(const QModelIndex &source_top_left, const QModelIndex &source_bottom_right))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceHeaderDataChanged(Qt::Orientation orientation, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceAboutToBeReset())
    Q_PRIVATE_SLOT(d_func(), void _q_sourceReset())
    Q_PRIVATE_SLOT(d_func(), void _q_sourceLayoutAboutToBeChanged())
    Q_PRIVATE_SLOT(d_func(), void _q_sourceLayoutChanged())
    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeInserted(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsInserted(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeRemoved(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsRemoved(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeInserted(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsInserted(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeRemoved(const QModelIndex &source_parent, int start, int end))
    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsRemoved(const QModelIndex &source_parent, int start, int end))
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QT_NO_SORTFILTERPROXYMODEL

#endif // QSORTFILTERPROXYMODEL_H
