src/views/viewproperties.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2010 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Aaron J. Seigo <aseigo@kde.org>                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  19  ***************************************************************************/
  20
  21 #ifndef VIEWPROPERTIES_H
  22 #define VIEWPROPERTIES_H
  23
  24 #include <views/dolphinview.h>
  25 #include <kurl.h>
  26 #include <libdolphin_export.h>
  27
  28 class ViewPropertySettings;
  29 /**
  30  * @brief Maintains the view properties like 'view mode' or
  31  *        'show hidden files' for a directory.
  32  *
  33  * The view properties are automatically stored as part of the file
  34  * .directory inside the corresponding path. To read out the view properties
  35  * just construct an instance by passing the path of the directory:
  36  *
  37  * \code
  38  * ViewProperties props(KUrl("/home/peter/Documents"));
  39  * const DolphinView::Mode mode = props.viewMode();
  40  * const bool showHiddenFiles = props.isShowHiddenFilesEnabled();
  41  * \endcode
  42  *
  43  * When modifying a view property, the '.directory' file is automatically updated
  44  * inside the destructor.
  45  *
  46  * If no .directory file is available or the global view mode is turned on
  47  * (see GeneralSettings::globalViewMode()), the values from the global .directory file
  48  * are used for initialization.
  49  */
  50 class LIBDOLPHINPRIVATE_EXPORT ViewProperties
  51 {
  52 public:
  53     explicit ViewProperties(const KUrl& url);
  54     virtual ~ViewProperties();
  55
  56     void setViewMode(DolphinView::Mode mode);
  57     DolphinView::Mode viewMode() const;
  58
  59     void setShowPreview(bool show);
  60     bool showPreview() const;
  61
  62     void setShowHiddenFiles(bool show);
  63     bool showHiddenFiles() const;
  64
  65     void setCategorizedSorting(bool categorized);
  66     bool categorizedSorting() const;
  67
  68     void setSorting(DolphinView::Sorting sorting);
  69     DolphinView::Sorting sorting() const;
  70
  71     void setSortOrder(Qt::SortOrder sortOrder);
  72     Qt::SortOrder sortOrder() const;
  73
  74     void setSortFoldersFirst(bool foldersFirst);
  75     bool sortFoldersFirst() const;
  76
  77     /**
  78      * Sets the additional information for the current set view-mode.
  79      * Note that the additional-info property is the only property where
  80      * the value is dependent from another property (in this case the view-mode).
  81      */
  82     void setAdditionalInfo(const KFileItemDelegate::InformationList& info);
  83
  84     /**
  85      * Returns the additional information for the current set view-mode.
  86      * Note that the additional-info property is the only property where
  87      * the value is dependent from another property (in this case the view-mode).
  88      */
  89     KFileItemDelegate::InformationList additionalInfo() const;
  90
  91     /**
  92      * Sets the directory properties view mode, show preview,
  93      * show hidden files, sorting and sort order like
  94      * set in \a props.
  95      */
  96     void setDirProperties(const ViewProperties& props);
  97
  98     /**
  99      * If \a autoSave is true, the properties are automatically
 100      * saved when the destructor is called. Per default autosaving
 101      * is enabled.
 102      */
 103     void setAutoSaveEnabled(bool autoSave);
 104     bool isAutoSaveEnabled() const;
 105
 106     void update();
 107
 108     /**
 109      * Saves the view properties for the directory specified
 110      * in the constructor. The method is automatically
 111      * invoked in the destructor, if
 112      * ViewProperties::isAutoSaveEnabled() returns true and
 113      * at least one property has been changed.
 114      */
 115     void save();
 116
 117     /**
 118      * Returns the URL of the directory, where the mirrored view properties
 119      * are stored into. Mirrored view properties are used if:
 120      * - there is no write access for storing the view properties into
 121      *   the original directory
 122      * - for non local directories
 123      */
 124     static KUrl mirroredDirectory();
 125
 126 private:
 127     /**
 128      * Returns the destination directory path where the view
 129      * properties are stored. \a subDir specifies the used sub
 130      * directory.
 131      */
 132     QString destinationDir(const QString& subDir) const;
 133
 134     /**
 135      * Helper method for ViewProperties::additionalInfo(): Returns
 136      * the additional info for the outdated version 1 of the view-properties.
 137      */
 138     KFileItemDelegate::InformationList additionalInfoV1() const;
 139
 140     /**
 141      * Helper method for ViewProperties::additionalInfo(): Returns
 142      * the additional info for the current version 2 of the view-properties.
 143      */
 144     KFileItemDelegate::InformationList additionalInfoV2() const;
 145
 146     /**
 147      * Returns the view-mode prefix when storing additional properties for
 148      * a view-mode.
 149      */
 150     QString viewModePrefix() const;
 151
 152     /**
 153      * Returns true, if \a filePath is part of the home-path (see QDir::homePath()).
 154      */
 155     static bool isPartOfHome(const QString& filePath);
 156
 157     Q_DISABLE_COPY(ViewProperties)
 158
 159 private:
 160     bool m_changedProps;
 161     bool m_autoSave;
 162     QString m_filePath;
 163     ViewPropertySettings* m_node;
 164 };
 165
 166 #endif