Merge branch 'feature/resource-explorer' into develop

scwx-qt/scwx-qt.cmake

@@ -50,9 +50,11 @@ set(HDR_GL_DRAW source/scwx/qt/gl/draw/draw_item.hpp
 set(SRC_GL_DRAW source/scwx/qt/gl/draw/draw_item.cpp
                 source/scwx/qt/gl/draw/rectangle.cpp)
 set(HDR_MANAGER source/scwx/qt/manager/radar_product_manager.hpp
+                source/scwx/qt/manager/radar_product_manager_notifier.hpp
                 source/scwx/qt/manager/resource_manager.hpp
                 source/scwx/qt/manager/settings_manager.hpp)
 set(SRC_MANAGER source/scwx/qt/manager/radar_product_manager.cpp
+                source/scwx/qt/manager/radar_product_manager_notifier.cpp
                 source/scwx/qt/manager/resource_manager.cpp
                 source/scwx/qt/manager/settings_manager.cpp)
 set(HDR_MAP source/scwx/qt/map/color_table_layer.hpp
@@ -73,6 +75,12 @@ set(SRC_MAP source/scwx/qt/map/color_table_layer.cpp
             source/scwx/qt/map/overlay_layer.cpp
             source/scwx/qt/map/radar_product_layer.cpp
             source/scwx/qt/map/radar_range_layer.cpp)
+set(HDR_MODEL source/scwx/qt/model/radar_product_model.hpp
+              source/scwx/qt/model/tree_item.hpp
+              source/scwx/qt/model/tree_model.hpp)
+set(SRC_MODEL source/scwx/qt/model/radar_product_model.cpp
+              source/scwx/qt/model/tree_item.cpp
+              source/scwx/qt/model/tree_model.cpp)
 set(HDR_REQUEST source/scwx/qt/request/nexrad_file_request.hpp)
 set(SRC_REQUEST source/scwx/qt/request/nexrad_file_request.cpp)
 set(HDR_SETTINGS source/scwx/qt/settings/general_settings.hpp
@@ -140,6 +148,8 @@ set(PROJECT_SOURCES ${HDR_MAIN}
                     ${UI_MAIN}
                     ${HDR_MAP}
                     ${SRC_MAP}
+                    ${HDR_MODEL}
+                    ${SRC_MODEL}
                     ${HDR_REQUEST}
                     ${SRC_REQUEST}
                     ${HDR_SETTINGS}
@@ -172,6 +182,8 @@ source_group("Source Files\\manager"  FILES ${SRC_MANAGER})
 source_group("UI Files\\main"         FILES ${UI_MAIN})
 source_group("Header Files\\map"      FILES ${HDR_MAP})
 source_group("Source Files\\map"      FILES ${SRC_MAP})
+source_group("Header Files\\model"    FILES ${HDR_MODEL})
+source_group("Source Files\\model"    FILES ${SRC_MODEL})
 source_group("Header Files\\request"  FILES ${HDR_REQUEST})
 source_group("Source Files\\request"  FILES ${SRC_REQUEST})
 source_group("Header Files\\settings" FILES ${HDR_SETTINGS})

scwx-qt/source/scwx/qt/main/main_window.cpp

@@ -6,6 +6,7 @@
 #include <scwx/qt/manager/radar_product_manager.hpp>
 #include <scwx/qt/manager/settings_manager.hpp>
 #include <scwx/qt/map/map_widget.hpp>
+#include <scwx/qt/model/radar_product_model.hpp>
 #include <scwx/qt/ui/flow_layout.hpp>
 #include <scwx/qt/ui/level2_products_widget.hpp>
 #include <scwx/qt/ui/level2_settings_widget.hpp>
@@ -123,6 +124,24 @@ MainWindow::MainWindow(QWidget* parent) :
    ui->vcpValueLabel->setVisible(false);
    ui->vcpDescriptionLabel->setVisible(false);
 
+   // Configure Menu
+   ui->menuView->insertAction(ui->actionRadarToolbox,
+                              ui->radarToolboxDock->toggleViewAction());
+   ui->radarToolboxDock->toggleViewAction()->setText(tr("Radar &Toolbox"));
+   ui->actionRadarToolbox->setVisible(false);
+
+   ui->menuView->insertAction(ui->actionResourceExplorer,
+                              ui->resourceExplorerDock->toggleViewAction());
+   ui->resourceExplorerDock->toggleViewAction()->setText(
+      tr("&Resource Explorer"));
+   ui->actionResourceExplorer->setVisible(false);
+
+   // Configure Docks
+   ui->resourceExplorerDock->setVisible(false);
+
+   ui->resourceTreeView->setModel(new model::RadarProductModel(this));
+
+   // Configure Map
    p->ConfigureMapLayout();
 
    // Add Level 2 Products

scwx-qt/source/scwx/qt/main/main_window.ui

@@ -52,13 +52,21 @@
     </property>
     <addaction name="actionAboutSupercellWx"/>
    </widget>
+   <widget class="QMenu" name="menuView">
+    <property name="title">
+     <string>&amp;View</string>
+    </property>
+    <addaction name="actionRadarToolbox"/>
+    <addaction name="actionResourceExplorer"/>
+   </widget>
    <addaction name="menuFile"/>
+   <addaction name="menuView"/>
    <addaction name="menuHelp"/>
   </widget>
   <widget class="QStatusBar" name="statusbar"/>
   <widget class="QDockWidget" name="radarToolboxDock">
    <property name="windowTitle">
-    <string>Toolbox</string>
+    <string>Radar Toolbox</string>
    </property>
    <attribute name="dockWidgetArea">
     <number>1</number>
@@ -217,6 +225,21 @@
     </layout>
    </widget>
   </widget>
+  <widget class="QDockWidget" name="resourceExplorerDock">
+   <property name="windowTitle">
+    <string>Resource Explorer</string>
+   </property>
+   <attribute name="dockWidgetArea">
+    <number>2</number>
+   </attribute>
+   <widget class="QWidget" name="dockWidgetContents">
+    <layout class="QVBoxLayout" name="verticalLayout_3">
+     <item>
+      <widget class="QTreeView" name="resourceTreeView"/>
+     </item>
+    </layout>
+   </widget>
+  </widget>
   <action name="actionExit">
    <property name="text">
     <string>E&amp;xit</string>
@@ -235,6 +258,16 @@
     <string>Ctrl+O</string>
    </property>
   </action>
+  <action name="actionRadarToolbox">
+   <property name="text">
+    <string>Radar Toolbox</string>
+   </property>
+  </action>
+  <action name="actionResourceExplorer">
+   <property name="text">
+    <string>&amp;Resource Explorer</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>

scwx-qt/source/scwx/qt/manager/radar_product_manager.cpp

@@ -1,4 +1,5 @@
 #include <scwx/qt/manager/radar_product_manager.hpp>
+#include <scwx/qt/manager/radar_product_manager_notifier.hpp>
 #include <scwx/common/constants.hpp>
 #include <scwx/provider/nexrad_data_provider_factory.hpp>
 #include <scwx/util/logger.hpp>
@@ -937,15 +938,29 @@ void RadarProductManager::UpdateAvailableProducts()
 std::shared_ptr<RadarProductManager>
 RadarProductManager::Instance(const std::string& radarSite)
 {
-   std::lock_guard<std::mutex> guard(instanceMutex_);
+   std::shared_ptr<RadarProductManager> instance        = nullptr;
+   bool                                 instanceCreated = false;
 
-   if (!instanceMap_.contains(radarSite))
    {
-      instanceMap_[radarSite] =
-         std::make_shared<RadarProductManager>(radarSite);
+      std::lock_guard<std::mutex> guard(instanceMutex_);
+
+      if (!instanceMap_.contains(radarSite))
+      {
+         instanceMap_[radarSite] =
+            std::make_shared<RadarProductManager>(radarSite);
+         instanceCreated = true;
+      }
+
+      instance = instanceMap_[radarSite];
    }
 
-   return instanceMap_[radarSite];
+   if (instanceCreated)
+   {
+      emit RadarProductManagerNotifier::Instance().RadarProductManagerCreated(
+         radarSite);
+   }
+
+   return instance;
 }
 
 } // namespace manager

scwx-qt/source/scwx/qt/manager/radar_product_manager_notifier.cpp

@@ -0,0 +1,34 @@
+#include <scwx/qt/manager/radar_product_manager_notifier.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace manager
+{
+
+static const std::string logPrefix_ =
+   "scwx::qt::manager::radar_product_manager_notifier";
+
+class RadarProductManagerNotifierImpl
+{
+public:
+   explicit RadarProductManagerNotifierImpl() {}
+   ~RadarProductManagerNotifierImpl() {}
+};
+
+RadarProductManagerNotifier::RadarProductManagerNotifier() :
+    p(std::make_unique<RadarProductManagerNotifierImpl>())
+{
+}
+RadarProductManagerNotifier::~RadarProductManagerNotifier() = default;
+
+RadarProductManagerNotifier& RadarProductManagerNotifier::Instance()
+{
+   static RadarProductManagerNotifier instance_ {};
+   return instance_;
+}
+
+} // namespace manager
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/manager/radar_product_manager_notifier.hpp

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <memory>
+
+#include <QObject>
+
+namespace scwx
+{
+namespace qt
+{
+namespace manager
+{
+
+class RadarProductManagerNotifierImpl;
+
+class RadarProductManagerNotifier : public QObject
+{
+   Q_OBJECT
+
+public:
+   explicit RadarProductManagerNotifier();
+   ~RadarProductManagerNotifier();
+
+   static RadarProductManagerNotifier& Instance();
+
+signals:
+   void RadarProductManagerCreated(const std::string& radarSite);
+
+private:
+   std::unique_ptr<RadarProductManagerNotifierImpl> p;
+};
+
+} // namespace manager
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/model/radar_product_model.cpp

@@ -0,0 +1,146 @@
+#include <scwx/qt/model/radar_product_model.hpp>
+#include <scwx/qt/manager/radar_product_manager.hpp>
+#include <scwx/qt/manager/radar_product_manager_notifier.hpp>
+#include <scwx/util/logger.hpp>
+#include <scwx/util/time.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+static const std::string logPrefix_ = "scwx::qt::model::radar_product_model";
+static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
+
+class RadarProductModelImpl : public QObject
+{
+   Q_OBJECT
+
+public:
+   explicit RadarProductModelImpl(RadarProductModel* self);
+   ~RadarProductModelImpl() = default;
+
+   RadarProductModel*        self_;
+   std::shared_ptr<TreeItem> rootItem_;
+};
+
+RadarProductModel::RadarProductModel(QObject* parent) :
+    TreeModel(parent), p(std::make_unique<RadarProductModelImpl>(this))
+{
+}
+RadarProductModel::~RadarProductModel() = default;
+
+const std::shared_ptr<TreeItem> RadarProductModel::root_item() const
+{
+   return p->rootItem_;
+}
+
+RadarProductModelImpl::RadarProductModelImpl(RadarProductModel* self) :
+    self_ {self},
+    rootItem_ {std::make_shared<TreeItem>(
+       std::vector<QVariant> {QObject::tr("Product")})}
+{
+   connect(
+      &manager::RadarProductManagerNotifier::Instance(),
+      &manager::RadarProductManagerNotifier::RadarProductManagerCreated,
+      this,
+      [=](const std::string& radarSite)
+      {
+         logger_->debug("Adding radar site: {}", radarSite);
+
+         const QModelIndex rootIndex =
+            self_->createIndex(rootItem_->row(), 0, rootItem_.get());
+         const int rootChildren = rootItem_->child_count();
+
+         self_->beginInsertRows(rootIndex, rootChildren, rootChildren);
+
+         TreeItem* radarSiteItem =
+            new TreeItem({QString::fromStdString(radarSite)});
+         rootItem_->AppendChild(radarSiteItem);
+
+         self_->endInsertRows();
+
+         connect(
+            manager::RadarProductManager::Instance(radarSite).get(),
+            &manager::RadarProductManager::NewDataAvailable,
+            this,
+            [=](common::RadarProductGroup             group,
+                const std::string&                    product,
+                std::chrono::system_clock::time_point latestTime)
+            {
+               const QString groupName {QString::fromStdString(
+                  common::GetRadarProductGroupName(group))};
+
+               // Find existing group item (e.g., Level 2, Level 3)
+               TreeItem* groupItem = radarSiteItem->FindChild(0, groupName);
+
+               if (groupItem == nullptr)
+               {
+                  // Existing group item was not found, create it
+                  const QModelIndex radarSiteIndex =
+                     self_->createIndex(radarSiteItem->row(), 0, radarSiteItem);
+                  const int radarSiteChildren = radarSiteItem->child_count();
+
+                  self_->beginInsertRows(
+                     radarSiteIndex, radarSiteChildren, radarSiteChildren);
+
+                  groupItem = new TreeItem({groupName});
+                  radarSiteItem->AppendChild(groupItem);
+
+                  self_->endInsertRows();
+               }
+
+               TreeItem* productItem = nullptr;
+
+               if (group == common::RadarProductGroup::Level2)
+               {
+                  // Level 2 items are not separated by product
+                  productItem = groupItem;
+               }
+               else
+               {
+                  // Find existing product item (e.g., N0B, N0Q)
+                  const QString productName {QString::fromStdString(product)};
+                  productItem = groupItem->FindChild(0, productName);
+
+                  if (productItem == nullptr)
+                  {
+                     // Existing product item was not found, create it
+                     const QModelIndex groupItemIndex =
+                        self_->createIndex(groupItem->row(), 0, groupItem);
+                     const int groupItemChildren = groupItem->child_count();
+
+                     self_->beginInsertRows(
+                        groupItemIndex, groupItemChildren, groupItemChildren);
+
+                     productItem = new TreeItem({productName});
+                     groupItem->AppendChild(productItem);
+
+                     self_->endInsertRows();
+                  }
+               }
+
+               // Create leaf item for product time
+               const QModelIndex productItemIndex =
+                  self_->createIndex(productItem->row(), 0, productItem);
+               const int productItemChildren = productItem->child_count();
+
+               self_->beginInsertRows(
+                  productItemIndex, productItemChildren, productItemChildren);
+
+               productItem->AppendChild(new TreeItem {
+                  QString::fromStdString(util::TimeString(latestTime))});
+
+               self_->endInsertRows();
+            },
+            Qt::QueuedConnection);
+      });
+}
+
+#include "radar_product_model.moc"
+
+} // namespace model
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/model/radar_product_model.hpp

@@ -0,0 +1,31 @@
+#pragma once
+
+#include <scwx/qt/model/tree_model.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+class RadarProductModelImpl;
+
+class RadarProductModel : public TreeModel
+{
+public:
+   explicit RadarProductModel(QObject* parent = nullptr);
+   ~RadarProductModel();
+
+protected:
+   const std::shared_ptr<TreeItem> root_item() const override;
+
+private:
+   std::unique_ptr<RadarProductModelImpl> p;
+
+   friend class RadarProductModelImpl;
+};
+
+} // namespace model
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/model/tree_item.cpp

@@ -0,0 +1,138 @@
+#include <scwx/qt/model/tree_item.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+static const std::string logPrefix_ = "scwx::qt::model::tree_item";
+
+class TreeItem::Impl
+{
+public:
+   explicit Impl(const std::vector<QVariant>& data, TreeItem* parent) :
+       childItems_ {}, itemData_ {data}, parentItem_ {parent}
+   {
+   }
+   ~Impl() { qDeleteAll(childItems_); }
+
+   std::vector<TreeItem*> childItems_;
+   std::vector<QVariant>  itemData_;
+   TreeItem*              parentItem_;
+};
+
+TreeItem::TreeItem(const std::vector<QVariant>& data, TreeItem* parent) :
+    p {std::make_unique<Impl>(data, parent)}
+{
+}
+
+TreeItem::TreeItem(std::initializer_list<QVariant> data, TreeItem* parent) :
+    TreeItem(std::vector<QVariant> {data}, parent)
+{
+}
+
+TreeItem::~TreeItem() {}
+
+TreeItem::TreeItem(TreeItem&&) noexcept            = default;
+TreeItem& TreeItem::operator=(TreeItem&&) noexcept = default;
+
+void TreeItem::AppendChild(TreeItem* item)
+{
+   item->p->parentItem_ = this;
+   p->childItems_.push_back(item);
+}
+
+TreeItem* TreeItem::FindChild(int column, const QVariant& data)
+{
+   auto it = std::find_if(p->childItems_.begin(),
+                          p->childItems_.end(),
+                          [&](auto& item) {
+                             return (column < item->column_count() &&
+                                     item->data(column) == data);
+                          });
+
+   TreeItem* item = nullptr;
+   if (it != p->childItems_.end())
+   {
+      item = *it;
+   }
+
+   return item;
+}
+
+const TreeItem* TreeItem::child(int row) const
+{
+   const TreeItem* item = nullptr;
+
+   if (0 <= row && row < p->childItems_.size())
+   {
+      item = p->childItems_[row];
+   }
+
+   return item;
+}
+
+TreeItem* TreeItem::child(int row)
+{
+   TreeItem* item = nullptr;
+
+   if (0 <= row && row < p->childItems_.size())
+   {
+      item = p->childItems_[row];
+   }
+
+   return item;
+}
+
+std::vector<TreeItem*> TreeItem::children()
+{
+   return p->childItems_;
+}
+
+int TreeItem::child_count() const
+{
+   return static_cast<int>(p->childItems_.size());
+}
+
+int TreeItem::column_count() const
+{
+   return static_cast<int>(p->itemData_.size());
+}
+
+QVariant TreeItem::data(int column) const
+{
+   if (0 <= column && column < p->itemData_.size())
+   {
+      return p->itemData_[column];
+   }
+   else
+   {
+      return QVariant();
+   }
+}
+
+int TreeItem::row() const
+{
+   int row = 0;
+
+   if (p->parentItem_ != nullptr)
+   {
+      const auto& childItems = p->parentItem_->p->childItems_;
+      row =
+         std::distance(childItems.cbegin(),
+                       std::find(childItems.cbegin(), childItems.cend(), this));
+   }
+
+   return row;
+}
+
+const TreeItem* TreeItem::parent_item() const
+{
+   return p->parentItem_;
+}
+
+} // namespace model
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/model/tree_item.hpp

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include <QVariant>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+class TreeItem
+{
+public:
+   explicit TreeItem(const std::vector<QVariant>& data,
+                     TreeItem*                    parent = nullptr);
+   explicit TreeItem(std::initializer_list<QVariant> data,
+                     TreeItem*                       parent = nullptr);
+   virtual ~TreeItem();
+
+   TreeItem(const TreeItem&)            = delete;
+   TreeItem& operator=(const TreeItem&) = delete;
+
+   TreeItem(TreeItem&&) noexcept;
+   TreeItem& operator=(TreeItem&&) noexcept;
+
+   void      AppendChild(TreeItem* child);
+   TreeItem* FindChild(int column, const QVariant& data);
+
+   const TreeItem*        child(int row) const;
+   TreeItem*              child(int row);
+   std::vector<TreeItem*> children();
+   int                    child_count() const;
+   int                    column_count() const;
+   QVariant               data(int column) const;
+   int                    row() const;
+   const TreeItem*        parent_item() const;
+
+private:
+   class Impl;
+   std::unique_ptr<Impl> p;
+};
+
+} // namespace model
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/model/tree_model.cpp

@@ -0,0 +1,145 @@
+#include <scwx/qt/model/tree_model.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+static const std::string logPrefix_ = "scwx::qt::model::tree_model";
+
+class TreeModelImpl
+{
+public:
+   explicit TreeModelImpl() = default;
+   ~TreeModelImpl()         = default;
+};
+
+TreeModel::TreeModel(QObject* parent) :
+    QAbstractItemModel(parent), p(std::make_unique<TreeModelImpl>())
+{
+}
+TreeModel::~TreeModel() = default;
+
+int TreeModel::rowCount(const QModelIndex& parent) const
+{
+   const TreeItem* parentItem;
+
+   if (parent.isValid())
+   {
+      parentItem = static_cast<const TreeItem*>(parent.constInternalPointer());
+   }
+   else
+   {
+      parentItem = root_item().get();
+   }
+
+   return parentItem->child_count();
+}
+
+int TreeModel::columnCount(const QModelIndex& parent) const
+{
+   const TreeItem* parentItem;
+
+   if (parent.isValid())
+   {
+      parentItem = static_cast<const TreeItem*>(parent.constInternalPointer());
+   }
+   else
+   {
+      parentItem = root_item().get();
+   }
+
+   return parentItem->column_count();
+}
+
+QVariant TreeModel::data(const QModelIndex& index, int role) const
+{
+   if (!index.isValid() || role != Qt::DisplayRole)
+   {
+      return QVariant();
+   }
+
+   const TreeItem* item = static_cast<const TreeItem*>(index.internalPointer());
+
+   return item->data(index.column());
+}
+
+Qt::ItemFlags TreeModel::flags(const QModelIndex& index) const
+{
+   Qt::ItemFlags flags;
+
+   if (!index.isValid())
+   {
+      flags = Qt::NoItemFlags;
+   }
+   else
+   {
+      flags = QAbstractItemModel::flags(index);
+   }
+
+   return flags;
+}
+
+QVariant
+TreeModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+   if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
+   {
+      return root_item()->data(section);
+   }
+
+   return QVariant();
+}
+
+QModelIndex
+TreeModel::index(int row, int column, const QModelIndex& parent) const
+{
+   if (!hasIndex(row, column, parent))
+   {
+      return QModelIndex();
+   }
+
+   const TreeItem* parentItem;
+
+   if (!parent.isValid())
+   {
+      parentItem = root_item().get();
+   }
+   else
+   {
+      parentItem = static_cast<const TreeItem*>(parent.constInternalPointer());
+   }
+
+   const TreeItem* childItem = parentItem->child(row);
+   if (childItem)
+   {
+      return createIndex(row, column, childItem);
+   }
+
+   return QModelIndex();
+}
+
+QModelIndex TreeModel::parent(const QModelIndex& index) const
+{
+   if (!index.isValid())
+   {
+      return QModelIndex();
+   }
+
+   const TreeItem* childItem =
+      static_cast<const TreeItem*>(index.constInternalPointer());
+   const TreeItem* parentItem = childItem->parent_item();
+
+   if (parentItem == root_item().get() || parentItem == nullptr)
+   {
+      return QModelIndex();
+   }
+
+   return createIndex(parentItem->row(), 0, parentItem);
+}
+
+} // namespace model
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/model/tree_model.hpp

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <scwx/qt/model/tree_item.hpp>
+
+#include <QAbstractItemModel>
+
+namespace scwx
+{
+namespace qt
+{
+namespace model
+{
+
+class TreeModelImpl;
+
+class TreeModel : public QAbstractItemModel
+{
+public:
+   explicit TreeModel(QObject* parent = nullptr);
+   virtual ~TreeModel();
+
+   int rowCount(const QModelIndex& parent = QModelIndex()) const override;
+   int columnCount(const QModelIndex& parent = QModelIndex()) const override;
+
+   QVariant      data(const QModelIndex& index,
+                      int                role = Qt::DisplayRole) const override;
+   Qt::ItemFlags flags(const QModelIndex& index) const override;
+   QVariant      headerData(int             section,
+                            Qt::Orientation orientation,
+                            int             role = Qt::DisplayRole) const override;
+   QModelIndex   index(int                row,
+                       int                column,
+                       const QModelIndex& parent = QModelIndex()) const override;
+   QModelIndex   parent(const QModelIndex& index) const override;
+
+protected:
+   virtual const std::shared_ptr<TreeItem> root_item() const = 0;
+
+private:
+   std::unique_ptr<TreeModelImpl> p;
+};
+
+} // namespace model
+} // namespace qt
+} // namespace scwx