diff --git a/CMakeLists.txt b/CMakeLists.txt
index a2bdca5f..1d97a7b1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,555 +1,556 @@
 cmake_minimum_required(VERSION 3.2.0)
 project(kphotoalbum LANGUAGES CXX VERSION 5.6.1)
 
 if(POLICY CMP0063)
     cmake_policy(SET CMP0063 NEW)
 endif()
 
 # provide drop-down menu for build-type in cmake-gui:
 set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS ";Debug;Release;RelWithDebInfo;MinSizeRel")
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
 
 find_package(ECM REQUIRED NO_MODULE)
 list(APPEND CMAKE_MODULE_PATH ${ECM_MODULE_PATH} )
 
 include(KDEInstallDirs)
 include(KDECompilerSettings)
 include(KDECMakeSettings)
 include(FeatureSummary)
 
 # enable exceptions:
 kde_enable_exceptions()
 
 add_definitions(
     -DQT_NO_CAST_FROM_ASCII
     -DQT_NO_CAST_TO_ASCII
     -DQT_NO_URL_CAST_FROM_STRING
     -DQT_NO_CAST_FROM_BYTEARRAY
     -DQT_DEPRECATED_WARNINGS
     -DQT_STRICT_ITERATORS
+    -DQT_DISABLE_DEPRECATED_BEFORE=0x050900
     )
 
 
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_REQUIRED TRUE)
 
 ########### dependencies  ###############
 
 find_package(Qt5 5.9 REQUIRED COMPONENTS Sql Xml Widgets Network)
 find_package(Phonon4Qt5 REQUIRED)
 find_package(KF5 5.44 REQUIRED COMPONENTS Archive Completion Config CoreAddons DocTools I18n IconThemes JobWidgets KIO TextWidgets XmlGui WidgetsAddons)
 
 find_package(JPEG REQUIRED)
 if(JPEG_FOUND)
     include_directories(${JPEG_INCLUDE_DIR})
 endif()
 
 ### 2018-12-30 jzarl
 # When Exiv2 0.26 can be deprecated, FindExiv2.cmake should be removed
 # and only find_package(exiv2) should be used
 find_package(exiv2 CONFIG QUIET)
 if(exiv2_FOUND)
     # search againg with REQUIRED, so that the feature summary correctly shows exiv as required dependency
     find_package(exiv2 CONFIG REQUIRED)
     set(EXIV2_LIBRARIES exiv2lib)
 else()
     find_package(Exiv2 REQUIRED)
 endif()
 
 find_package(KF5Kipi 5.1.0)
 set_package_properties(KF5Kipi
     PROPERTIES
     TYPE RECOMMENDED
     PURPOSE "Enables integration of KDE image plugin interface (shared functionality between KPhotoAlbum and other apps like gwenview or digikam)"
     )
 set(HASKIPI ${KF5Kipi_FOUND})
 
 find_package(KF5Purpose)
 set_package_properties(KF5Purpose
     PROPERTIES
     TYPE RECOMMENDED
     PURPOSE "Enables integration with KDE Purpose plugins, which provide image sharing and similar functionality."
     )
 
 find_package(KF5KDcraw)
 set_package_properties(KF5KDcraw
     PROPERTIES
     TYPE OPTIONAL
     PURPOSE "Enables RAW image support"
     )
 set(HAVE_KDCRAW ${KF5KDcraw_FOUND} )
 
 find_package(Marble)
 set_package_properties(Marble
     PROPERTIES
     TYPE OPTIONAL
     PURPOSE "Enables support for geographic map location using embedded GPS information."
     )
 set(HAVE_MARBLE ${Marble_FOUND})
 if(Marble_FOUND)
     include(MarbleChecks)
 endif()
 
 add_custom_target(
     UpdateVersion ALL
     COMMAND ${CMAKE_COMMAND}
     -DBASE_DIR=${CMAKE_CURRENT_SOURCE_DIR} -DPROJECT_NAME=KPA -DPROJECT_VERSION="${PROJECT_VERSION}"
     -DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE}" -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules/UpdateVersion.cmake"
     COMMENT "Updating version header."
     BYPRODUCTS "${CMAKE_CURRENT_SOURCE_DIR}/version.h"
     )
 
 # For config-kpa-*.h
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 set(libdatebar_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/DateBar/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/DateBar/DateBarWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DateBar/ViewHandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DateBar/MouseHandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DateBar/MouseHandler.cpp
     )
 
 set(libSettings_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/SettingsData.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/SettingsDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/ViewerSizeConfig.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/CategoryItem.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/CategoryPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/TagGroupsPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/GeneralPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/FileVersionDetectionPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/ThumbnailsPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/ViewerPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/DatabaseBackendPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/UntaggedGroupBox.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/CategoriesGroupsWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/BirthdayPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/DateTableWidgetItem.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/Logging.cpp
     )
 
 set(libxmldb_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/Database.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/XMLCategoryCollection.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/XMLCategory.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/XMLImageDateCollection.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/NumberedBackup.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/FileReader.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/FileWriter.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/ElementWriter.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/XmlReader.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/CompressFileInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/XMLDB/Logging.cpp
     )
 
 set(libThumbnailView_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/FilterWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailRequest.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailToolTip.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/GridResizeInteraction.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/GridResizeSlider.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/SelectionInteraction.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/MouseTrackingInteraction.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/CellGeometry.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailModel.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailFacade.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailComponent.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/KeyboardEventHandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailDND.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/Delegate.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/SelectionMaintainer.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/VideoThumbnailCycler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/MouseInteraction.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/ThumbnailFactory.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ThumbnailView/enums.cpp
     )
 
 set(libPlugins_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/Logging.cpp
     )
 if(KF5Kipi_FOUND)
     set(libPlugins_SRCS ${libPlugins_SRCS}
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/Interface.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/ImageCollection.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/ImageInfo.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/CategoryImageCollection.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/ImageCollectionSelector.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Settings/PluginsPage.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/UploadWidget.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/UploadImageCollection.cpp
         )
 endif()
 if(KF5Purpose_FOUND)
     set(libPlugins_SRCS ${libPlugins_SRCS}
         ${CMAKE_CURRENT_SOURCE_DIR}/Plugins/PurposeMenu.cpp
         )
 endif()
 
 set(libViewer_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/ViewerWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/ImageDisplay.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/ViewHandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/SpeedDisplay.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/InfoBox.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/CategoryImageConfig.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/AbstractDisplay.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/VideoDisplay.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/TextDisplay.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/InfoBoxResizer.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/VisibleOptionsMenu.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/VideoShooter.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/TaggedArea.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Viewer/Logging.cpp
     )
 
 set(libCategoryListView_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/CategoryListView/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/CategoryListView/DragableTreeWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/CategoryListView/CheckDropItem.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/CategoryListView/DragItemInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/CategoryListView/Logging.cpp
     )
 
 set(libHTMLGenerator_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/HTMLDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/Generator.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/Setup.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/ImageSizeCheckBox.h
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/HTMLGenerator/ImageSizeCheckBox.cpp
     )
 
 set(libUtilities_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/AlgorithmHelper.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/ShowBusyCursor.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/List.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/UniqFilenameMapper.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/FileUtil.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/BooleanGuard.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/Process.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/DeleteFiles.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/ToolTip.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/JpeglibWithFix.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/StringSet.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/FastJpeg.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/DemoUtil.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/DescriptionUtil.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/FileNameUtil.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/VideoUtil.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/ImageUtil.cpp
     )
 
 set(libMainWindow_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/DeleteDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/RunDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/FeatureDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/InvalidDateFinder.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/AutoStackImages.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/TokenEditor.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/WelcomeDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/Window.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/SplashScreen.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/ExternalPopup.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/CategoryImagePopup.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/SearchBar.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/ImageCounter.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/DirtyIndicator.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/StatisticsDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/BreadcrumbViewer.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/StatusBar.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/UpdateVideoThumbnail.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/DuplicateMerger/DuplicateMerger.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/DuplicateMerger/DuplicateMatch.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/DuplicateMerger/MergeToolTip.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/CopyPopup.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/Options.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/MainWindow/Logging.cpp
     )
 
 set(libImageManager_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ImageLoaderThread.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/AsyncLoader.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ImageRequest.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ImageClientInterface.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ImageDecoder.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/RawImageDecoder.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/RequestQueue.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ThumbnailCache.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ImageEvent.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ThumbnailBuilder.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/PreloadRequest.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/CancelEvent.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/VideoImageRescaleRequest.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/VideoThumbnails.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/VideoLengthExtractor.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/ExtractOneVideoFrame.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/CacheFileInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImageManager/enums.cpp
     )
 
 set(libDB_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/Category.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/CategoryCollection.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ExactCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageDate.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/MD5Map.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/MemberMap.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageInfoList.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageDB.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/FileInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/NegationCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/NewImageFinder.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageScout.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/NoTagCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/GroupCounter.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/CategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageSearchInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/CategoryItem.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ContainerCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ValueCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/OrCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/AndCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/FastDir.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/OptimizedFileList.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/FileName.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/FileNameList.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/CategoryPtr.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ExifMode.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageDateCollection.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/ImageInfoPtr.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/MD5.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/MediaCount.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/RawId.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/SimpleCategoryMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/DB/UIDelegate.cpp
     )
 
 set(libImportExport_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/Export.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/Import.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/ImportMatcher.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/XMLHandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/MiniViewer.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/ImportHandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/ImageRow.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/ImportDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/ImportSettings.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/KimFileReader.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/MD5CheckPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/ImportExport/Logging.cpp
     )
 
 set(libAnnotationDialog_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/Dialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ListSelect.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ImagePreview.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ImagePreviewWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/DateEdit.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/CompletableLineEdit.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ListViewItemHider.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ShowSelectionOnlyManager.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ShortCutManager.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/ResizableFrame.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/DescriptionEdit.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/AreaTagSelectDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/AnnotationDialog/enums.cpp
     )
 
 set(libBrowser_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/BrowserWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/BrowserPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/OverviewPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/CategoryPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/ImageViewPage.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/TreeFilter.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/Breadcrumb.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/BreadcrumbList.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/AbstractCategoryModel.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/FlatCategoryModel.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/TreeCategoryModel.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/CenteringIconView.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Browser/enums.cpp
     )
 
 set(libExif_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/documentation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/Database.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/InfoDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/SearchDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/SearchInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/TreeView.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/Info.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/RangeWidget.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/DatabaseElement.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/ReReadDialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/Grid.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/Logging.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Exif/SearchDialogSettings.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/Settings/ExifPage.cpp
     )
 
 set(libBackgroundTaskManager_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/JobInterface.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/JobManager.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/StatusIndicator.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/JobViewer.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/JobModel.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/JobInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/CompletedJobInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/Priority.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/PriorityQueue.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundTaskManager/Logging.cpp
     )
 
 set(libBackgroundJobs_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundJobs/SearchForVideosWithoutLengthInfo.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundJobs/ReadVideoLengthJob.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundJobs/SearchForVideosWithoutVideoThumbnailsJob.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundJobs/HandleVideoThumbnailRequestJob.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/BackgroundJobs/ExtractOneThumbnailJob.cpp
     )
 
 option(KPA_ENABLE_REMOTECONTROL "Build with support for companion Android/QML app." OFF)
 set(libRemoteControl_SRCS)
 if(KPA_ENABLE_REMOTECONTROL)
     # requires cmake 3.12
     add_compile_definitions(KPA_ENABLE_REMOTECONTROL)
     set(libRemoteControl_SRCS
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/RemoteCommand.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/RemoteConnection.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/Server.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/RemoteInterface.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/SearchInfo.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/RemoteImageRequest.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/ImageNameStore.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/ConnectionIndicator.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/RemoteControl/Logging.cpp
         )
 endif()
 
 set(libMap_SRCS)
 if(Marble_FOUND)
     set(libMap_SRCS
         ${CMAKE_CURRENT_SOURCE_DIR}/Browser/GeoPositionPage.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Map/GeoCluster.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Map/MapView.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Map/Logging.cpp
         ${CMAKE_CURRENT_SOURCE_DIR}/Map/GeoCoordinates.cpp
         )
 endif()
 
 add_subdirectory(images)
 add_subdirectory(icons)
 add_subdirectory(demo)
 add_subdirectory(themes)
 add_subdirectory(scripts)
 add_subdirectory(doc)
 
 
 ########### next target ###############
 
 set(kphotoalbum_SRCS
     main.cpp
     ${libdatebar_SRCS}
     ${libSettings_SRCS}
     ${libsurvey_SRCS}
     ${libxmldb_SRCS}
     ${libThumbnailView_SRCS}
     ${libPlugins_SRCS}
     ${libViewer_SRCS}
     ${libCategoryListView_SRCS}
     ${libHTMLGenerator_SRCS}
     ${libMainWindow_SRCS}
     ${libImageManager_SRCS}
     ${libDB_SRCS}
     ${libImportExport_SRCS}
     ${libAnnotationDialog_SRCS}
     ${libExif_SRCS}
     ${libBrowser_SRCS}
     ${libBackgroundTaskManager_SRCS}
     ${libBackgroundJobs_SRCS}
     ${libRemoteControl_SRCS}
     ${libMap_SRCS}
     ${libUtilities_SRCS}
     )
 
 add_executable(kphotoalbum ${kphotoalbum_SRCS})
 add_dependencies(kphotoalbum UpdateVersion)
 
 # External components
 target_link_libraries(kphotoalbum
     ${JPEG_LIBRARY}
     ${EXIV2_LIBRARIES}
     KF5::Archive
     KF5::Completion
     KF5::ConfigCore
     KF5::ConfigGui
     KF5::CoreAddons
     KF5::I18n
     KF5::IconThemes
     KF5::JobWidgets
     KF5::KIOCore
     KF5::KIOWidgets
     KF5::TextWidgets
     KF5::XmlGui
     KF5::WidgetsAddons
     Phonon::phonon4qt5
     Qt5::Network
     Qt5::Sql
     )
 
 if(KF5Kipi_FOUND)
     target_link_libraries(kphotoalbum KF5::Kipi)
 endif()
 if(KF5Purpose_FOUND)
     target_link_libraries(kphotoalbum KF5::Purpose KF5::PurposeWidgets)
 endif()
 
 if(KF5KDcraw_FOUND)
     target_link_libraries(kphotoalbum KF5::KDcraw)
 endif()
 
 if(Marble_FOUND)
     target_link_libraries(kphotoalbum Marble)
 endif()
 
 install(TARGETS kphotoalbum ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 
 ########### install files ###############
 
 install(PROGRAMS org.kde.kphotoalbum.desktop org.kde.kphotoalbum-import.desktop DESTINATION ${KDE_INSTALL_APPDIR})
 install(FILES kphotoalbumrc DESTINATION ${KDE_INSTALL_CONFDIR})
 install(FILES tips default-setup DESTINATION ${KDE_INSTALL_DATADIR}/kphotoalbum)
 install(FILES kphotoalbumui.rc DESTINATION ${KDE_INSTALL_KXMLGUI5DIR}/kphotoalbum)
 install(FILES org.kde.kphotoalbum.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
 
 configure_file(config-kpa-kdcraw.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-kpa-kdcraw.h)
 configure_file(config-kpa-kipi.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-kpa-kipi.h)
 configure_file(config-kpa-marble.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-kpa-marble.h)
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
 # vi:expandtab:tabstop=4 shiftwidth=4:
diff --git a/CategoryListView/CheckDropItem.cpp b/CategoryListView/CheckDropItem.cpp
index c694f0d1..2a914726 100644
--- a/CategoryListView/CheckDropItem.cpp
+++ b/CategoryListView/CheckDropItem.cpp
@@ -1,170 +1,172 @@
-/* Copyright (C) 2003-2015 Jesper K. Pedersen <blackie@kde.org>
+/* Copyright (C) 2003-2020 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.
+   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) version 3 or any later version
+   accepted by the membership of KDE e. V. (or its successor approved
+   by the membership of KDE e. V.), which shall act as a proxy
+   defined in Section 14 of version 3 of the license.
 
    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.
+   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.
+   along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
+
 #include "CheckDropItem.h"
 
 #include "DragItemInfo.h"
 #include "DragableTreeWidget.h"
 
 #include <DB/Category.h>
 #include <DB/CategoryItem.h>
 #include <DB/ImageDB.h>
 #include <DB/MemberMap.h>
 
 #include <KLocalizedString>
 #include <QDropEvent>
 #include <kmessagebox.h>
 
 CategoryListView::CheckDropItem::CheckDropItem(DragableTreeWidget *parent, const QString &column1,
                                                const QString &column2)
     : QTreeWidgetItem(parent)
     , m_listView(parent)
 {
     setCheckState(0, Qt::Unchecked);
     setText(0, column1);
     setText(1, column2);
 }
 
 CategoryListView::CheckDropItem::CheckDropItem(DragableTreeWidget *listView, QTreeWidgetItem *parent, const QString &column1,
                                                const QString &column2)
     : QTreeWidgetItem(parent)
     , m_listView(listView)
 {
     setCheckState(0, Qt::Unchecked);
     setText(0, column1);
     setText(1, column2);
 }
 
 CategoryListView::DragItemInfoSet CategoryListView::CheckDropItem::extractData(const QMimeData *data) const
 {
     DragItemInfoSet items;
     QByteArray array = data->data(QString::fromUtf8("x-kphotoalbum/x-categorydrag"));
     QDataStream stream(array);
     stream >> items;
 
     return items;
 }
 
 bool CategoryListView::CheckDropItem::dataDropped(const QMimeData *data)
 {
     DragItemInfoSet items = extractData(data);
     const QString newParent = text(0);
     if (!verifyDropWasIntended(newParent, items))
         return false;
 
     DB::MemberMap &memberMap = DB::ImageDB::instance()->memberMap();
     memberMap.addGroup(m_listView->category()->name(), newParent);
 
     for (DragItemInfoSet::const_iterator itemIt = items.begin(); itemIt != items.end(); ++itemIt) {
         const QString oldParent = (*itemIt).parent();
         const QString child = (*itemIt).child();
 
         memberMap.addMemberToGroup(m_listView->category()->name(), newParent, child);
         memberMap.removeMemberFromGroup(m_listView->category()->name(), oldParent, child);
     }
 
     //DB::ImageDB::instance()->setMemberMap( memberMap );
 
     m_listView->emitItemsChanged();
     return true;
 }
 
 bool CategoryListView::CheckDropItem::isSelfDrop(const QMimeData *data) const
 {
     const QString thisCategory = text(0);
     const DragItemInfoSet children = extractData(data);
     const DB::CategoryItemPtr categoryInfo = m_listView->category()->itemsCategories();
 
     for (DragItemInfoSet::const_iterator childIt = children.begin(); childIt != children.end(); ++childIt) {
         if (thisCategory == (*childIt).child() || categoryInfo->isDescendentOf(thisCategory, (*childIt).child()))
             return true;
     }
     return false;
 }
 
 void CategoryListView::CheckDropItem::setTristate(bool b)
 {
     if (b)
-        setFlags(flags() | Qt::ItemIsTristate);
+        setFlags(flags() | Qt::ItemIsAutoTristate);
     else
-        setFlags(flags() & ~Qt::ItemIsTristate);
+        setFlags(flags() & ~Qt::ItemIsAutoTristate);
 }
 
 bool CategoryListView::CheckDropItem::verifyDropWasIntended(const QString &parent, const DragItemInfoSet &items)
 {
     QStringList children;
     for (DragItemInfoSet::const_iterator itemIt = items.begin(); itemIt != items.end(); ++itemIt) {
         children.append((*itemIt).child());
     }
 
     QString allChildren;
     if (children.size() == 1) {
         allChildren = children[0];
     } else if (children.size() == 2) {
         allChildren = i18n("\"%1\" and \"%2\"", children[0], children[1]);
     } else {
         for (int i = 0; i < children.size() - 1; i++) {
             if (i == 0) {
                 allChildren += i18n("\"%1\"", children[i]);
             } else {
                 allChildren += i18n(", \"%1\"", children[i]);
             }
         }
         allChildren += i18n(" and \"%1\"", children[children.size() - 1]);
     }
 
     const QString msg = i18np(
         "<p>"
         "You have just dragged an item onto another. This will make the target item a tag group "
         "and define the dragged item as a member of this group. "
         "Tag groups may be used to denote facts such as 'Las Vegas is in the USA'. In that example "
         "you would drag Las Vegas onto USA. "
         "When you have set up tag groups, you can, for instance, see all images from the USA by "
         "simply selecting that item in the Browser."
         "</p>"
         "<p>"
         "Was it really your intention to make \"%3\" a tag group and add \"%2\" as a member?"
         "</p>",
 
         "<p>"
         "You have just dragged some items onto one other item. This will make the target item a "
         "tag group and define the dragged items as members of this group. "
         "Tag groups may be used to denote facts such as 'Las Vegas and New York are in the USA'. "
         "In that example you would drag Las Vegas and New York onto USA. "
         "When you have set up tag groups, you can, for instance, see all images from the USA by "
         "simply selecting that item in the Browser."
         "</p>"
         "<p>"
         "Was it really your intention to make \"%3\" a tag group and add %2 as members?"
         "</p>",
 
         children.size(), allChildren, parent);
 
     const int answer = KMessageBox::warningContinueCancel(nullptr, msg, i18n("Move Items"), KStandardGuiItem::cont(),
                                                           KStandardGuiItem::cancel(),
                                                           QString::fromLatin1("DoYouReallyWantToMessWithMemberGroups"));
     return answer == KMessageBox::Continue;
 }
 
 void CategoryListView::CheckDropItem::setDNDEnabled(const bool b)
 {
     if (b)
         setFlags(Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | flags());
     else
         setFlags(flags() & ~Qt::ItemIsDragEnabled & ~Qt::ItemIsDropEnabled);
 }
 // vi:expandtab:tabstop=4 shiftwidth=4:
diff --git a/Copyright_Header_Template.txt b/Copyright_Header_Template.txt
index db00d223..04c76c67 100644
--- a/Copyright_Header_Template.txt
+++ b/Copyright_Header_Template.txt
@@ -1,18 +1,18 @@
-/* Copyright (C) 2019 The KPhotoAlbum Development Team
+/* Copyright (C) 2020 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) version 3 or any later version
    accepted by the membership of KDE e. V. (or its successor approved
    by the membership of KDE e. V.), which shall act as a proxy
    defined in Section 14 of version 3 of the license.
 
    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. If not, see <http://www.gnu.org/licenses/>.
 */