refs #568, specialized view class for DB objects

* CViewWithDbObjects
* new menu for views (delete key, remove)
* adjusted derived classes

src/blackgui/shortcut.cpp

@@ -50,4 +50,15 @@ namespace BlackGui
         return k;
     }
 
+    const QKeySequence &CShortcut::keyDelete()
+    {
+        static const QKeySequence k(Qt::Key_Delete);
+        return k;
+    }
+
+    const QKeySequence &CShortcut::keyEscape()
+    {
+        static const QKeySequence k(Qt::Key_Escape);
+        return k;
+    }
 } // ns

src/blackgui/shortcut.h

@@ -44,6 +44,12 @@ namespace BlackGui
 
         //! Save in views
         static const QKeySequence &keySaveViews();
+
+        //! Delete, e.g. selected rows
+        static const QKeySequence &keyDelete();
+
+        //! Escape
+        static const QKeySequence &keyEscape();
     };
 } // ns
 #endif // guard

src/blackgui/views/aircrafticaoview.cpp

@@ -17,7 +17,7 @@ namespace BlackGui
 {
     namespace Views
     {
-        CAircraftIcaoCodeView::CAircraftIcaoCodeView(QWidget *parent) : CViewBase(parent)
+        CAircraftIcaoCodeView::CAircraftIcaoCodeView(QWidget *parent) : CViewWithDbObjects(parent)
         {
             this->m_menus |= MenuBackend;
             this->standardInit(new CAircraftIcaoCodeListModel(this));

src/blackgui/views/aircrafticaoview.h

@@ -13,7 +13,7 @@
 #define BLACKGUI_AIRCRAFTICAOVIEW_H
 
 #include "blackgui/blackguiexport.h"
-#include "viewbase.h"
+#include "viewdbobjects.h"
 #include "../models/aircrafticaolistmodel.h"
 
 namespace BlackGui
@@ -21,9 +21,9 @@ namespace BlackGui
     namespace Views
     {
         //! Aircraft ICAO codes view
-        class BLACKGUI_EXPORT CAircraftIcaoCodeView : public CViewBase<Models::CAircraftIcaoCodeListModel, BlackMisc::Aviation::CAircraftIcaoCodeList, BlackMisc::Aviation::CAircraftIcaoCode>
+        class BLACKGUI_EXPORT CAircraftIcaoCodeView :
+            public CViewWithDbObjects<Models::CAircraftIcaoCodeListModel, BlackMisc::Aviation::CAircraftIcaoCodeList, BlackMisc::Aviation::CAircraftIcaoCode, int>
         {
-
         public:
             //! Constructor
             explicit CAircraftIcaoCodeView(QWidget *parent = nullptr);

src/blackgui/views/aircraftmodelview.cpp

@@ -30,7 +30,7 @@ namespace BlackGui
 {
     namespace Views
     {
-        CAircraftModelView::CAircraftModelView(QWidget *parent) : CViewBase(parent)
+        CAircraftModelView::CAircraftModelView(QWidget *parent) : CViewWithDbObjects(parent)
         {
             // default
             this->standardInit(new CAircraftModelListModel(CAircraftModelListModel::OwnSimulatorModel, this));
@@ -50,26 +50,22 @@ namespace BlackGui
             switch (mode)
             {
             case CAircraftModelListModel::StashModel:
-                this->m_menus = MenuClear;
+                this->m_menus = MenuClear | MenuHighlightDbData;
-                this->setCustomMenu(new CHighlightDbModelsMenu(this, true));
                 break;
             case CAircraftModelListModel::Database:
                 this->m_menus = MenuBackend;
                 break;
             case CAircraftModelListModel::VPilotRuleModel:
-                this->m_menus = MenuRefresh;
+                this->m_menus = MenuRefresh | MenuHighlightDbData;;
-                this->setCustomMenu(new CHighlightDbModelsMenu(this, true));
                 this->setCustomMenu(new CHighlightStashedModelsMenu(this, true));
                 break;
             case CAircraftModelListModel::OwnSimulatorModelMapping:
-                this->m_menus = MenuDisplayAutomatically;
+                this->m_menus = MenuDisplayAutomatically | MenuHighlightDbData;
-                this->setCustomMenu(new CHighlightDbModelsMenu(this, true));
                 this->setCustomMenu(new CHighlightStashedModelsMenu(this, true));
                 break;
             case CAircraftModelListModel::OwnSimulatorModel:
             default:
-                this->m_menus = MenuDisplayAutomatically | MenuBackend | MenuRefresh;
+                this->m_menus = MenuDisplayAutomatically | MenuBackend | MenuRefresh | MenuHighlightDbData;
-                this->setCustomMenu(new CHighlightDbModelsMenu(this, true));
                 break;
             }
         }
@@ -95,7 +91,7 @@ namespace BlackGui
             return c;
         }
 
-        bool CAircraftModelView::hasModelsToStash() const
+        bool CAircraftModelView::hasSelectedModelsToStash() const
         {
             return m_allowStash && hasSelection();
         }
@@ -117,6 +113,18 @@ namespace BlackGui
             this->setFilterDialog(new CAircraftModelFilterDialog(this));
         }
 
+        int CAircraftModelView::removeModelsWithModelString(const QStringList &modelStrings, Qt::CaseSensitivity sensitivity)
+        {
+            if (modelStrings.isEmpty()) { return 0; }
+            CAircraftModelList copy(this->container());
+            int delta = copy.removeModelsWithString(modelStrings, sensitivity);
+            if (delta > 0)
+            {
+                this->updateContainerMaybeAsync(copy);
+            }
+            return delta;
+        }
+
         void CAircraftModelView::dropEvent(QDropEvent *event)
         {
             if (!isDropAllowed()) { return; }
@@ -207,12 +215,6 @@ namespace BlackGui
             } // valid mime?
         }
 
-        void CAircraftModelView::ps_toggleHighlightDbModels()
-        {
-            bool h = derivedModel()->highlightDbData();
-            derivedModel()->setHighlightDbData(!h);
-        }
-
         void CAircraftModelView::ps_toggleHighlightStashedModels()
         {
             bool h = derivedModel()->highlightGivenModelStrings();
@@ -225,16 +227,6 @@ namespace BlackGui
             emit requestStash();
         }
 
-        void CAircraftModelView::CHighlightDbModelsMenu::customMenu(QMenu &menu) const
-        {
-            const CAircraftModelView *mv = qobject_cast<const CAircraftModelView *>(parent());
-            Q_ASSERT_X(mv, Q_FUNC_INFO, "no view");
-            QAction *a = menu.addAction(CIcons::database16(), "Highlight DB models", mv, SLOT(ps_toggleHighlightDbModels()));
-            a->setCheckable(true);
-            a->setChecked(mv->derivedModel()->highlightDbData());
-            this->nestedCustomMenu(menu);
-        }
-
         void CAircraftModelView::CHighlightStashedModelsMenu::customMenu(QMenu &menu) const
         {
             const CAircraftModelView *mv = qobject_cast<const CAircraftModelView *>(parent());

src/blackgui/views/aircraftmodelview.h

@@ -15,7 +15,7 @@
 #include "blackgui/blackguiexport.h"
 #include "blackgui/filters/aircraftmodelfilterdialog.h"
 #include "blackgui/models/aircraftmodellistmodel.h"
-#include "viewbase.h"
+#include "viewdbobjects.h"
 
 namespace BlackGui
 {
@@ -23,7 +23,7 @@ namespace BlackGui
     {
         //! Aircraft view
         class BLACKGUI_EXPORT CAircraftModelView :
-            public CViewBase<Models::CAircraftModelListModel, BlackMisc::Simulation::CAircraftModelList, BlackMisc::Simulation::CAircraftModel>
+            public CViewWithDbObjects<Models::CAircraftModelListModel, BlackMisc::Simulation::CAircraftModelList, BlackMisc::Simulation::CAircraftModel, int>
         {
             Q_OBJECT
 
@@ -46,15 +46,18 @@ namespace BlackGui
             //! Allow to stash
             void setAllowStash(bool stash) { m_allowStash = stash; }
 
-            //! Has any models to stash amd is allowed to stash
+            //! Has any models to stash and it is allowed to stash
-            bool hasModelsToStash() const;
+            bool hasSelectedModelsToStash() const;
 
-            //! Add the technically supported metatypes as allows
+            //! Add the technically supported metatypes allowed for drag and drop
             void setImplementedMetaTypeIds();
 
             //! Add my own filter dialog
             void addFilterDialog();
 
+            //! Remove models with model strings
+            int removeModelsWithModelString(const QStringList &modelStrings, Qt::CaseSensitivity sensitivity = Qt::CaseInsensitive);
+
         signals:
             //! Request to stash if applicable
             void requestStash();
@@ -67,9 +70,6 @@ namespace BlackGui
             virtual void dropEvent(QDropEvent *event) override;
 
         private slots:
-            //! Highlight DB models
-            void ps_toggleHighlightDbModels();
-
             //! Highlight stashed models
             void ps_toggleHighlightStashedModels();
 
@@ -79,17 +79,6 @@ namespace BlackGui
         private:
             bool m_allowStash = false; //!< allow to stash
 
-            //! Custom menu for the models which have been loaded
-            class CHighlightDbModelsMenu : public BlackGui::IMenuDelegate
-            {
-            public:
-                //! Constructor
-                CHighlightDbModelsMenu(CAircraftModelView *parent, bool separatorAtEnd) : IMenuDelegate(parent, separatorAtEnd) {}
-
-                //! \copydoc IMenuDelegate::customMenu
-                virtual void customMenu(QMenu &menu) const override;
-            };
-
             //! Custom menu for the models which have been loaded
             class CHighlightStashedModelsMenu : public BlackGui::IMenuDelegate
             {

src/blackgui/views/airlineicaoview.cpp

@@ -17,7 +17,7 @@ namespace BlackGui
 {
     namespace Views
     {
-        CAirlineIcaoCodeView::CAirlineIcaoCodeView(QWidget *parent) : CViewBase(parent)
+        CAirlineIcaoCodeView::CAirlineIcaoCodeView(QWidget *parent) : CViewWithDbObjects(parent)
         {
             this->m_menus |= MenuBackend;
             this->standardInit(new CAirlineIcaoCodeListModel(this));

src/blackgui/views/airlineicaoview.h

@@ -13,7 +13,7 @@
 #define BLACKGUI_AIRLINEICAOVIEW_H
 
 #include "blackgui/blackguiexport.h"
-#include "viewbase.h"
+#include "viewdbobjects.h"
 #include "../models/airlineicaolistmodel.h"
 
 namespace BlackGui
@@ -21,9 +21,9 @@ namespace BlackGui
     namespace Views
     {
         //! Aircraft ICAO codes view
-        class BLACKGUI_EXPORT CAirlineIcaoCodeView : public CViewBase<Models::CAirlineIcaoCodeListModel, BlackMisc::Aviation::CAirlineIcaoCodeList, BlackMisc::Aviation::CAirlineIcaoCode>
+        class BLACKGUI_EXPORT CAirlineIcaoCodeView :
+            public CViewWithDbObjects<Models::CAirlineIcaoCodeListModel, BlackMisc::Aviation::CAirlineIcaoCodeList, BlackMisc::Aviation::CAirlineIcaoCode, int>
         {
-
         public:
             //! Constructor
             explicit CAirlineIcaoCodeView(QWidget *parent = nullptr);

src/blackgui/views/distributorview.cpp

@@ -16,7 +16,7 @@ namespace BlackGui
 {
     namespace Views
     {
-        CDistributorView::CDistributorView(QWidget *parent) : CViewBase(parent)
+        CDistributorView::CDistributorView(QWidget *parent) : CViewWithDbObjects(parent)
         {
             this->m_menus |= MenuBackend;
             this->standardInit(new CDistributorListModel(this));

src/blackgui/views/distributorview.h

@@ -13,7 +13,7 @@
 #define BLACKGUI_DISTRIBUTORVIEW_H
 
 #include "blackgui/blackguiexport.h"
-#include "viewbase.h"
+#include "viewdbobjects.h"
 #include "../models/distributorlistmodel.h"
 
 namespace BlackGui
@@ -21,13 +21,13 @@ namespace BlackGui
     namespace Views
     {
         //! Distributors
-        class BLACKGUI_EXPORT CDistributorView : public CViewBase<Models::CDistributorListModel, BlackMisc::Simulation::CDistributorList, BlackMisc::Simulation::CDistributor>
+        class BLACKGUI_EXPORT CDistributorView :
+            public CViewWithDbObjects<BlackGui::Models::CDistributorListModel, BlackMisc::Simulation::CDistributorList, BlackMisc::Simulation::CDistributor, QString>
         {
-
         public:
             //! Constructor
             explicit CDistributorView(QWidget *parent = nullptr);
         };
-    }
+    } // ns
-}
+} // ns
 #endif // guard

src/blackgui/views/liveryview.cpp

@@ -16,7 +16,7 @@ namespace BlackGui
 {
     namespace Views
     {
-        CLiveryView::CLiveryView(QWidget *parent) : CViewBase(parent)
+        CLiveryView::CLiveryView(QWidget *parent) : CViewWithDbObjects(parent)
         {
             this->m_menus |= MenuBackend;
             this->standardInit(new CLiveryListModel(this));

src/blackgui/views/liveryview.h

@@ -12,7 +12,7 @@
 #ifndef BLACKGUI_LIVERYVIEW_H
 #define BLACKGUI_LIVERYVIEW_H
 
-#include "viewbase.h"
+#include "viewdbobjects.h"
 #include "blackgui/blackguiexport.h"
 #include "blackgui/models/liverylistmodel.h"
 
@@ -21,13 +21,13 @@ namespace BlackGui
     namespace Views
     {
         //! Distributors
-        class BLACKGUI_EXPORT CLiveryView : public CViewBase<Models::CLiveryListModel, BlackMisc::Aviation::CLiveryList, BlackMisc::Aviation::CLivery>
+        class BLACKGUI_EXPORT CLiveryView :
+            public CViewWithDbObjects<Models::CLiveryListModel, BlackMisc::Aviation::CLiveryList, BlackMisc::Aviation::CLivery, int>
         {
-
         public:
             //! Constructor
             explicit CLiveryView(QWidget *parent = nullptr);
         };
-    }
+    } // ns
-}
+} // ns
 #endif // guard

src/blackgui/views/viewbase.cpp

@@ -57,6 +57,8 @@ namespace BlackGui
             clearSelection->setObjectName("Clear selection shortcut for " + this->objectName());
             QShortcut *saveJson = new QShortcut(CShortcut::keySaveViews(), this, SLOT(ps_saveJsonShortcut()), nullptr, Qt::WidgetShortcut);
             saveJson->setObjectName("Save JSON for " + this->objectName());
+            QShortcut *deleteRow = new QShortcut(CShortcut::keyDelete(), this, SLOT(ps_removeSelectedRows()), nullptr, Qt::WidgetShortcut);
+            deleteRow->setObjectName("Delete selected rows for " + this->objectName());
         }
 
         bool CViewBaseNonTemplate::setParentDockWidgetInfoArea(CDockWidgetInfoArea *parentDockableWidget)
@@ -166,6 +168,13 @@ namespace BlackGui
             if (this->m_menus.testFlag(MenuRefresh)) { menu.addAction(BlackMisc::CIcons::refresh16(), "Update", this, SIGNAL(requestUpdate())); }
             if (this->m_menus.testFlag(MenuBackend)) { menu.addAction(BlackMisc::CIcons::refresh16(), "Reload from backend", this, SIGNAL(requestNewBackendData())); }
             if (this->m_menus.testFlag(MenuClear)) { menu.addAction(BlackMisc::CIcons::delete16(), "Clear", this, SLOT(ps_clear())); }
+            if (this->m_menus.testFlag(MenuRemoveSelectedRows))
+            {
+                if (this->hasSelection())
+                {
+                    menu.addAction(BlackMisc::CIcons::delete16(), "Remove selected rows", this, SLOT(ps_removeSelectedRows()), CShortcut::keyDelete());
+                }
+            }
             if (this->m_menus.testFlag(MenuDisplayAutomatically))
             {
                 QAction *a = menu.addAction(CIcons::appMappings16(), "Automatically display (when loaded)", this, SLOT(ps_toggleAutoDisplay()));
@@ -347,6 +356,10 @@ namespace BlackGui
         void CViewBaseNonTemplate::menuAddItems(Menu menusToAdd)
         {
             this->m_menus |= menusToAdd;
+            if (menusToAdd.testFlag(MenuRemoveSelectedRows))
+            {
+                this->m_enableDeleteSelectedRows = true;
+            }
         }
 
         int CViewBaseNonTemplate::ps_updateContainer(const CVariant &variant, bool sort, bool resize)
@@ -488,6 +501,12 @@ namespace BlackGui
             this->m_displayAutomatically = a->isChecked();
         }
 
+        void CViewBaseNonTemplate::ps_removeSelectedRows()
+        {
+            if (!m_enableDeleteSelectedRows) { return; }
+            this->removeSelectedRows();
+        }
+
         void CViewBaseNonTemplate::ps_updatedIndicator()
         {
             this->update();
@@ -531,6 +550,14 @@ namespace BlackGui
         int CViewBase<ModelClass, ContainerType, ObjectType>::updateContainer(const ContainerType &container, bool sort, bool resize)
         {
             Q_ASSERT_X(this->m_model, Q_FUNC_INFO, "Missing model");
+            if (container.isEmpty())
+            {
+                // shortcut
+                this->clear();
+                return 0;
+            }
+
+            // we have data
             this->showLoadIndicator(container.size());
             bool reallyResize = resize && isResizeConditionMet(container.size()); // do we really perform resizing
             bool presize = (m_resizeMode == ResizingOnceSubset) &&
@@ -622,6 +649,13 @@ namespace BlackGui
             return this->m_model->container();
         }
 
+        template <class ModelClass, class ContainerType, class ObjectType>
+        const ContainerType &CViewBase<ModelClass, ContainerType, ObjectType>::containerOrFilteredContainer() const
+        {
+            Q_ASSERT(this->m_model);
+            return this->m_model->containerOrFilteredContainer();
+        }
+
         template <class ModelClass, class ContainerType, class ObjectType>
         ContainerType CViewBase<ModelClass, ContainerType, ObjectType>::selectedObjects() const
         {

src/blackgui/views/viewbase.h

@@ -70,14 +70,17 @@ namespace BlackGui
             {
                 MenuNone                 = 0,       ///< no menu
                 MenuClear                = 1 << 0,  ///< allow clearing the view via menu
-                MenuRefresh              = 1 << 1,  ///< allow refreshing the view via menu
+                MenuRemoveSelectedRows   = 1 << 1,  ///< allow to remove selected rows
-                MenuBackend              = 1 << 2,  ///< allow to request data from backend
+                MenuRefresh              = 1 << 2,  ///< allow refreshing the view via menu
-                MenuDisplayAutomatically = 1 << 3,  ///< allow to switch display automatically
+                MenuBackend              = 1 << 3,  ///< allow to request data from backend
-                MenuFilter               = 1 << 4,  ///< filter can be opened
+                MenuDisplayAutomatically = 1 << 4,  ///< allow to switch display automatically
-                MenuSave                 = 1 << 5,  ///< save as JSON
+                MenuFilter               = 1 << 5,  ///< filter can be opened
-                MenuLoad                 = 1 << 6,  ///< load from JSON
+                MenuSave                 = 1 << 6,  ///< save as JSON
+                MenuLoad                 = 1 << 7,  ///< load from JSON
                 MenuLoadAndSave          = MenuLoad | MenuSave,
-                MenuDefault              = MenuClear | MenuDisplayAutomatically
+                MenuDefault              = MenuClear | MenuDisplayAutomatically,
+                // special menu, should be in derived class but enums cannot be derived
+                MenuHighlightDbData      = 1 << 8, ///< highlight DB data
             };
             Q_DECLARE_FLAGS(Menu, MenuFlag)
 
@@ -224,6 +227,9 @@ namespace BlackGui
             //! Hide loading indicator
             void hideLoadIndicator();
 
+            //! Remove selected rows
+            virtual int removeSelectedRows() = 0;
+
         protected:
             //! Constructor
             CViewBaseNonTemplate(QWidget *parent);
@@ -286,6 +292,7 @@ namespace BlackGui
             bool m_acceptRowSelected                  = false;       //!< selection changed
             bool m_acceptDoubleClickSelection         = false;       //!< double clicked
             bool m_displayAutomatically               = true;        //!< display directly when loaded
+            bool m_enableDeleteSelectedRows           = false;       //!< selected rows can be deleted
             QWidget *m_filterWidget                   = nullptr;     //!< filter widget if any
             Menu                      m_menus         = MenuDefault; //!< Default menu settings
             BlackGui::IMenuDelegate  *m_menu          = nullptr;     //!< custom menu if any
@@ -341,6 +348,9 @@ namespace BlackGui
             //! Clear the model
             virtual void ps_clear() { this->clear(); }
 
+            //! Remove selected rows
+            void ps_removeSelectedRows();
+
         private:
             //! Set the filter widget internally
             void setFilterWidgetImpl(QWidget *filterWidget);
@@ -350,6 +360,9 @@ namespace BlackGui
         //! Base class for views
         template <class ModelClass, class ContainerType, class ObjectType> class CViewBase : public CViewBaseNonTemplate
         {
+            // I cannot use Q_OBJECT here, because error: Template classes not supported by Q_OBJECT
+            // Cannot declare slots as SLOT because I have no Q_OBJECT macro
+
         public:
             //! Destructor
             virtual ~CViewBase() { if (this->m_model) { this->m_model->markDestroyed(); }}
@@ -364,6 +377,7 @@ namespace BlackGui
             virtual void clear() override { Q_ASSERT(this->m_model); this->m_model->clear(); }
 
             //! Update whole container
+            //! \return int size after update
             int updateContainer(const ContainerType &container, bool sort = true, bool resize = true);
 
             //! Update whole container in background
@@ -381,18 +395,22 @@ namespace BlackGui
             //! Access to container
             const ContainerType &container() const;
 
+            //! \copydoc BlackGui::Models::ListModelBase::containerOrFilteredContainer
+            const ContainerType &containerOrFilteredContainer() const;
+
             //! Selected objects
             ContainerType selectedObjects() const;
 
+            //! \copydoc CViewBaseNonTemplate::removeSelectedRows
+            //! \remarks Actually a slot, but not defined as such as the template does not support Q_OBJECT
+            virtual int removeSelectedRows() override;
+
             //! Update selected objects
             int updateSelected(const BlackMisc::CVariant &variant, const BlackMisc::CPropertyIndex &index);
 
             //! Selected object (or default)
             ObjectType selectedObject() const;
 
-            //! Remove selected rows
-            int removeSelectedRows();
-
             //! \copydoc BlackMisc::CContainerBase::removeIf
             template <class K0, class V0, class... KeysValues>
             int removeIf(K0 k0, V0 v0, KeysValues... keysValues)

src/blackgui/views/viewdbobjects.cpp

@@ -0,0 +1,103 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "viewdbobjects.h"
+#include "blackgui/models/allmodels.h"
+#include <QAction>
+
+using namespace BlackMisc;
+using namespace BlackGui;
+using namespace BlackGui::Models;
+
+namespace BlackGui
+{
+    namespace Views
+    {
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::CViewWithDbObjects(QWidget *parent) :
+            CViewBase<ModelClass, ContainerType, ObjectType>(parent)
+        {
+            // void
+        }
+
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        ObjectType CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::latestObject() const
+        {
+            return this->container().latestObject();
+        }
+
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        ObjectType CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::oldestObject() const
+        {
+            return this->container().oldestObject();
+        }
+
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        void CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::selectDbKeys(const QList<KeyType> &keys)
+        {
+            if (keys.isEmpty()) { return; }
+            this->clearSelection();
+            int r = -1;
+            for (const ObjectType &obj : CViewBase<ModelClass, ContainerType, ObjectType>::containerOrFilteredContainer())
+            {
+                r++;
+                if (!obj.hasValidDbKey()) { continue; }
+                if (keys.contains(obj.getDbKey()))
+                {
+                    this->selectRow(r);
+                }
+            }
+        }
+
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        int CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::removeDbKeys(const QList<KeyType> &keys)
+        {
+            if (keys.isEmpty()) { return 0; }
+            if (this->isEmpty()) { return 0; }
+
+            ContainerType newObjects(this->container());
+            int delta = newObjects.removeObjectsWithKeys(keys);
+            if (delta > 0)
+            {
+                this->updateContainerMaybeAsync(newObjects);
+            }
+            return delta;
+        }
+
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        void CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::customMenu(QMenu &menu) const
+        {
+            CViewBase<ModelClass, ContainerType, ObjectType>::customMenu(menu);
+            if (this->m_menus.testFlag(CViewBase<ModelClass, ContainerType, ObjectType>::MenuHighlightDbData))
+            {
+                menu.addSeparator();
+                QAction *a = menu.addAction(CIcons::database16(), "Highlight DB data", this, SLOT(ps_toggleDbData()));
+                a->setCheckable(true);
+                a->setChecked(this->derivedModel()->highlightDbData());
+            }
+        }
+
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType>
+        void CViewWithDbObjects<ModelClass, ContainerType, ObjectType, KeyType>::ps_toggleDbData()
+        {
+            bool h = this->derivedModel()->highlightDbData();
+            this->derivedModel()->setHighlightDbData(!h);
+        }
+
+        // see here for the reason of thess forward instantiations
+        // http://www.parashift.com/c++-faq/separate-template-class-defn-from-decl.html
+        template class CViewWithDbObjects<BlackGui::Models::CAircraftIcaoCodeListModel, BlackMisc::Aviation::CAircraftIcaoCodeList, BlackMisc::Aviation::CAircraftIcaoCode, int>;
+        template class CViewWithDbObjects<BlackGui::Models::CAircraftModelListModel, BlackMisc::Simulation::CAircraftModelList, BlackMisc::Simulation::CAircraftModel, int>;
+        template class CViewWithDbObjects<BlackGui::Models::CAirlineIcaoCodeListModel, BlackMisc::Aviation::CAirlineIcaoCodeList, BlackMisc::Aviation::CAirlineIcaoCode, int>;
+        template class CViewWithDbObjects<BlackGui::Models::CCountryListModel, BlackMisc::CCountryList, BlackMisc::CCountry, QString>;
+        template class CViewWithDbObjects<BlackGui::Models::CDistributorListModel, BlackMisc::Simulation::CDistributorList, BlackMisc::Simulation::CDistributor, QString>;
+        template class CViewWithDbObjects<BlackGui::Models::CLiveryListModel, BlackMisc::Aviation::CLiveryList, BlackMisc::Aviation::CLivery, int>;
+
+    } // namespace
+} // namespace

src/blackgui/views/viewdbobjects.h

@@ -0,0 +1,53 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_VIEWDBOBJECTS_H
+#define BLACKGUI_VIEWDBOBJECTS_H
+
+#include "blackgui/blackguiexport.h"
+#include "viewbase.h"
+#include <QMenu>
+
+namespace BlackGui
+{
+    namespace Views
+    {
+        //! Base class for views with DB objects
+        template <class ModelClass, class ContainerType, class ObjectType, class KeyType> class CViewWithDbObjects :
+            public CViewBase<ModelClass, ContainerType, ObjectType>
+        {
+        public:
+            //! Get latest object
+            ObjectType latestObject() const;
+
+            //! Get oldets object
+            ObjectType oldestObject() const;
+
+            //! Select given DB keys
+            void selectDbKeys(const QList<KeyType> &keys);
+
+            //! Remove keys
+            int removeDbKeys(const QList<KeyType> &keys);
+
+        protected:
+            //! Constructor
+            explicit CViewWithDbObjects(QWidget *parent = nullptr);
+
+            //! \copydoc QWidget::customMenu
+            virtual void customMenu(QMenu &menu) const override;
+
+        private slots:
+            //! Highlight DB data
+            void ps_toggleDbData();
+        };
+    } // namespace
+} // namespace
+#endif // guard