diff --git a/DB/ImageSearchInfo.h b/DB/ImageSearchInfo.h
index d8309cf4..ed19659e 100644
--- a/DB/ImageSearchInfo.h
+++ b/DB/ImageSearchInfo.h
@@ -1,146 +1,152 @@
 /* Copyright (C) 2003-2019 The KPhotoAlbum Development Team
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; see the file COPYING.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #ifndef IMAGESEARCHINFO_H
 #define IMAGESEARCHINFO_H
 #include "ImageDate.h"
 #include "ImageInfoPtr.h"
 
 #include <Exif/SearchInfo.h>
 
 #include <QList>
 #include <QMap>
 #include <config-kpa-kgeomap.h>
 #ifdef HAVE_KGEOMAP
 #include <KGeoMap/GeoCoordinates>
 #endif
 #include <Utilities/StringSet.h>
 namespace DB
 {
 
 class SimpleCategoryMatcher;
 class ImageInfo;
 class CategoryMatcher;
 
 class ImageSearchInfo
 {
 public:
     ImageSearchInfo();
     ~ImageSearchInfo();
     ImageSearchInfo(const ImageDate &date,
                     const QString &label, const QString &description);
     ImageSearchInfo(const ImageDate &date,
                     const QString &label, const QString &description,
                     const QString &fnPattern);
     ImageSearchInfo(const ImageSearchInfo &other);
 
     ImageDate date() const;
 
     QString categoryMatchText(const QString &name) const;
     void setCategoryMatchText(const QString &name, const QString &value);
     void renameCategory(const QString &oldName, const QString &newName);
 
     QString label() const;
     QRegExp fnPattern() const;
     QString description() const;
 
     /**
      * @brief checkIfNull evaluates whether the filter is indeed empty and
      * sets isNull() to \c true if that is the case.
      * You only need to call this if you re-use an existing ImageSearchInfo
      * and set/reset search parameters.
      * @see ThumbnailView::toggleRatingFilter
      */
     void checkIfNull();
     bool isNull() const;
     bool match(ImageInfoPtr) const;
     QList<QList<SimpleCategoryMatcher *>> query() const;
 
     void addAnd(const QString &category, const QString &value);
     short rating() const;
     void setRating(short rating);
+    /**
+     * @brief toString generates a description of the ImageSearchInfo.
+     * The idea is not to give a complete description, but rather something
+     * useful for the breadcrumbs at the bottom of the main window.
+     * @return a textual description of the ImageSearchInfo
+     */
     QString toString() const;
 
     void setMegaPixel(short megapixel);
     void setMaxMegaPixel(short maxmegapixel);
     void setSearchRAW(bool m_searchRAW);
     void setSearchMode(int index);
 
     void saveLock() const;
     static ImageSearchInfo loadLock();
 
     void debug();
     void debugMatcher() const;
     Utilities::StringSet findAlreadyMatched(const QString &group) const;
 
     void addExifSearchInfo(const Exif::SearchInfo info);
 
     // By default, an ImageSearchInfo is cacheable, but only one search
     // is cached per image.  For a search that's only going to be
     // performed once, don't try to cache the result.
     void setCacheable(bool cacheable);
     bool isCacheable() const;
 
 #ifdef HAVE_KGEOMAP
     KGeoMap::GeoCoordinates::Pair regionSelection() const;
     void setRegionSelection(const KGeoMap::GeoCoordinates::Pair &actRegionSelection);
 #endif
 
 protected:
     void compile() const;
     void deleteMatchers() const;
 
     QList<SimpleCategoryMatcher *> extractAndMatcher(CategoryMatcher *andMatcher) const;
     QList<QList<SimpleCategoryMatcher *>> convertMatcher(CategoryMatcher *) const;
 
 private:
     ImageDate m_date;
     QMap<QString, QString> m_categoryMatchText;
     QString m_label;
     QString m_description;
     QRegExp m_fnPattern;
     short m_rating;
     short m_megapixel;
     short m_max_megapixel;
     int m_ratingSearchMode;
     bool m_searchRAW;
     bool m_isNull;
     bool m_isCacheable;
     mutable bool m_compiled;
     mutable QList<CategoryMatcher *> m_categoryMatchers;
 
     Exif::SearchInfo m_exifSearchInfo;
 
     int m_matchGeneration;
     bool doMatch(ImageInfoPtr) const;
 
 #ifdef HAVE_KGEOMAP
     KGeoMap::GeoCoordinates::Pair m_regionSelection;
     mutable bool m_usingRegionSelection = false;
     mutable float m_regionSelectionMinLat;
     mutable float m_regionSelectionMaxLat;
     mutable float m_regionSelectionMinLon;
     mutable float m_regionSelectionMaxLon;
 #endif
     // When adding new instance variable, please notice that this class as an explicit written copy constructor.
 };
 }
 
 #endif /* IMAGESEARCHINFO_H */
 
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