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# qfilesystemmodel.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QFILESYSTEMMODEL_H
    00043 #define QFILESYSTEMMODEL_H
    00044
    00045 #include <QtCore/qabstractitemmodel.h>
    00046 #include <QtCore/qpair.h>
    00047 #include <QtCore/qdir.h>
    00048 #include <QtGui/qicon.h>
    00049 #include <QtCore/qdiriterator.h>
    00050
    00051 QT_BEGIN_HEADER
    00052
    00053 QT_BEGIN_NAMESPACE
    00054
    00055 QT_MODULE(Gui)
    00056
    00057 #ifndef QT_NO_FILESYSTEMMODEL
    00058
    00059 class ExtendedInformation;
    00060 class QFileSystemModelPrivate;
    00061 class QFileIconProvider;
    00062
    00063 class Q_GUI_EXPORT QFileSystemModel : public QAbstractItemModel
    00064 {
    00065     Q_OBJECT
    00066     Q_PROPERTY(bool resolveSymlinks READ resolveSymlinks WRITE setResolveSymlinks)
    00067     Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly)
    00068     Q_PROPERTY(bool nameFilterDisables READ nameFilterDisables WRITE setNameFilterDisables)
    00069
    00070 Q_SIGNALS:
    00071     void rootPathChanged(const QString &newPath);
    00072     void fileRenamed(const QString &path, const QString &oldName, const QString &newName);
    00073     void directoryLoaded(const QString &path);
    00074
    00075 public:
    00076     enum Roles {
    00077         FileIconRole = Qt::DecorationRole,
    00078         FilePathRole = Qt::UserRole + 1,
    00079         FileNameRole = Qt::UserRole + 2,
    00080         FilePermissions = Qt::UserRole + 3
    00081     };
    00082
    00083     explicit QFileSystemModel(QObject *parent = 0);
    00084     ~QFileSystemModel();
    00085
    00086     QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
    00087     QModelIndex index(const QString &path, int column = 0) const;
    00088     QModelIndex parent(const QModelIndex &child) const;
    00089     bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
    00090     bool canFetchMore(const QModelIndex &parent) const;
    00091     void fetchMore(const QModelIndex &parent);
    00092
    00093     int rowCount(const QModelIndex &parent = QModelIndex()) const;
    00094     int columnCount(const QModelIndex &parent = QModelIndex()) const;
    00095
    00096     QVariant myComputer(int role = Qt::DisplayRole) const;
    00097     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
    00098     bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
    00099
    00100     QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
    00101
    00102     Qt::ItemFlags flags(const QModelIndex &index) const;
    00103
    00104     void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
    00105
    00106     QStringList mimeTypes() const;
    00107     QMimeData *mimeData(const QModelIndexList &indexes) const;
    00108     bool dropMimeData(const QMimeData *data, Qt::DropAction action,
    00109                       int row, int column, const QModelIndex &parent);
    00110     Qt::DropActions supportedDropActions() const;
    00111
    00112     // QFileSystemModel specific API
    00113     QModelIndex setRootPath(const QString &path);
    00114     QString rootPath() const;
    00115     QDir rootDirectory() const;
    00116
    00117     void setIconProvider(QFileIconProvider *provider);
    00118     QFileIconProvider *iconProvider() const;
    00119
    00120     void setFilter(QDir::Filters filters);
    00121     QDir::Filters filter() const;
    00122
    00123     void setResolveSymlinks(bool enable);
    00124     bool resolveSymlinks() const;
    00125
    00126     void setReadOnly(bool enable);
    00127     bool isReadOnly() const;
    00128
    00129     void setNameFilterDisables(bool enable);
    00130     bool nameFilterDisables() const;
    00131
    00132     void setNameFilters(const QStringList &filters);
    00133     QStringList nameFilters() const;
    00134
    00135     QString filePath(const QModelIndex &index) const;
    00136     bool isDir(const QModelIndex &index) const;
    00137     qint64 size(const QModelIndex &index) const;
    00138     QString type(const QModelIndex &index) const;
    00139     QDateTime lastModified(const QModelIndex &index) const;
    00140
    00141     QModelIndex mkdir(const QModelIndex &parent, const QString &name);
    00142     inline bool rmdir(const QModelIndex &index) const;
    00143     inline QString fileName(const QModelIndex &index) const;
    00144     inline QIcon fileIcon(const QModelIndex &index) const;
    00145     QFile::Permissions permissions(const QModelIndex &index) const;
    00146     inline QFileInfo fileInfo(const QModelIndex &index) const;
    00147     bool remove(const QModelIndex &index) const;
    00148
    00149 protected:
    00150     QFileSystemModel(QFileSystemModelPrivate &, QObject *parent = 0);
    00151     void timerEvent(QTimerEvent *event);
    00152     bool event(QEvent *event);
    00153
    00154 private:
    00155     Q_DECLARE_PRIVATE(QFileSystemModel)
    00156     Q_DISABLE_COPY(QFileSystemModel)
    00157
    00158     Q_PRIVATE_SLOT(d_func(), void _q_directoryChanged(const QString &directory, const QStringList &list))
    00159     Q_PRIVATE_SLOT(d_func(), void _q_performDelayedSort())
    00160     Q_PRIVATE_SLOT(d_func(), void _q_fileSystemChanged(const QString &path, const QList<QPair<QString, QFileInfo> > &))
    00161     Q_PRIVATE_SLOT(d_func(), void _q_resolvedName(const QString &fileName, const QString &resolvedName))
    00162
    00163     friend class QFileDialogPrivate;
    00164 };
    00165
    00166 inline bool QFileSystemModel::rmdir(const QModelIndex &aindex) const
    00167 { QDir dir; return dir.rmdir(filePath(aindex)); }
    00168 inline QString QFileSystemModel::fileName(const QModelIndex &aindex) const
    00169 { return aindex.data(Qt::DisplayRole).toString(); }
    00170 inline QIcon QFileSystemModel::fileIcon(const QModelIndex &aindex) const
    00171 { return qvariant_cast<QIcon>(aindex.data(Qt::DecorationRole)); }
    00172 inline QFileInfo QFileSystemModel::fileInfo(const QModelIndex &aindex) const
    00173 { return QFileInfo(filePath(aindex)); }
    00174
    00175 #endif // QT_NO_FILESYSTEMMODEL
    00176
    00177 QT_END_NAMESPACE
    00178
    00179 QT_END_HEADER
    00180
    00181 #endif // QFILESYSTEMMODEL_H
    00182