Organize views as tree

CHANGELOG.md

@@ -13,6 +13,14 @@ All notable changes to this project will be documented in this file.
     * added delete module action and shortcut
     * added entries for context menu
     * adapted appearance for menu content tree, selection details tree, grouping content tree (same model for all)
+  * refactored view widget
+    * changed appearance from tabular view to tree view
+    * added 'directory' elements to organize and manage groups of views
+    * added drag'n drop feature allowing to relocate views or directories to another branch in the tree
+    * added column for view ID
+    * added functions to Python GUI API to create, modify and delete views and directories
+    * added UNDO functionality for create/delete view and directory actions
+    * fixed sort-by-column feature. The tree is not sorted at program start thus showing elements in 'natural' order.
   * refactored search bar
     * changed appearance of search bar to be more intuitive
     * added menu for extended options - e.g. option to search in selected columns only
@@ -65,7 +73,6 @@ All notable changes to this project will be documented in this file.
   * added support for Ubuntu 24.04 LTS
   * added INIT field declaration to FF-gate-types in example library
   * added drag'n drop feature allowing to move several nodes in graph view at same time
-  * added functions to Python GUI API to create, modify and delete views
   * added GUI PluginParameter type `ComboBox` for parameters that can be requested from plugin
   * added GUI PluginParameter types `Module` and `Gated` for parameters that can be requested from plugin
   * added `Show content` button to `Groupings` widget to show content of grouping as a list

plugins/gui/include/gui/basic_tree_model/base_tree_model.h

@@ -146,6 +146,8 @@ namespace hal
          */
         BaseTreeItem* getRootItem() const;
 
+        void insertChildItem(BaseTreeItem* childItem, BaseTreeItem* parentItem = nullptr, int row = -1);
+
     protected:
         RootTreeItem* mRootItem;
     };

plugins/gui/include/gui/context_manager_widget/context_manager_widget.h

@@ -30,8 +30,8 @@
 #include "hal_core/defines.h"
 
 #include "gui/graph_widget/contexts/graph_context.h"
-#include "gui/context_manager_widget/models/context_table_model.h"
-#include "gui/context_manager_widget/models/context_table_proxy_model.h"
+#include "gui/context_manager_widget/models/context_tree_model.h"
+#include "gui/context_manager_widget/models/context_proxy_model.h"
 #include "gui/searchbar/searchbar.h"
 #include "gui/settings/settings_items/settings_item_keybind.h"
 
@@ -40,6 +40,8 @@
 #include <QTableView>
 #include <QPushButton>
 #include <QMenu>
+#include <QTreeView>
+
 
 
 namespace hal
@@ -60,6 +62,7 @@ namespace hal
         Q_OBJECT
         Q_PROPERTY(QString disabledIconStyle READ disabledIconStyle WRITE setDisabledIconStyle)
         Q_PROPERTY(QString newViewIconPath READ newViewIconPath WRITE setNewViewIconPath)
+        Q_PROPERTY(QString newDirIconPath READ newDirIconPath WRITE setNewDirIconPath)
         Q_PROPERTY(QString newViewIconStyle READ newViewIconStyle WRITE setNewViewIconStyle)
         Q_PROPERTY(QString renameIconPath READ renameIconPath WRITE setRenameIconPath)
         Q_PROPERTY(QString renameIconStyle READ renameIconStyle WRITE setRenameIconStyle)
@@ -84,7 +87,7 @@ namespace hal
         ContextManagerWidget(GraphTabWidget* tab_view, QWidget* parent = nullptr);
 
         /**
-         * Selects the given context if possible (if it is indeed in the widget's ContextTableModel).
+         * Selects the given context if possible (if it is indeed in the widget's ContextTreeModel).
          *
          * @param context - The context to select.
          */
@@ -97,11 +100,28 @@ namespace hal
          */
         GraphContext* getCurrentContext();
 
+        /**
+         * Get the currently selected directory in the table.
+         *
+         * @return The ContextTreeItem.
+         */
+        ContextTreeItem* getCurrentItem();
+
         /**
          * Opens the currently selected GraphContext in hal's GraphTabWidget
          */
         void handleOpenContextClicked();
 
+        /**
+         * Handle double clicked
+         */
+        void handleItemDoubleClicked(const QModelIndex &proxyIndex);
+
+        /**
+         * Handle clicked
+         */
+        void handleItemClicked(const QModelIndex &proxyIndex);
+
         /**
          * Initializes the Toolbar of the ContextManagerWidget.
          *
@@ -119,6 +139,7 @@ namespace hal
         ///@{
         QString disabledIconStyle() const;
         QString newViewIconPath() const;
+        QString newDirIconPath() const;
         QString newViewIconStyle() const;
         QString renameIconPath() const;
         QString renameIconStyle() const;
@@ -139,6 +160,7 @@ namespace hal
         void setDisabledIconStyle(const QString &path);
         void setNewViewIconPath(const QString &path);
         void setNewViewIconStyle(const QString &style);
+        void setNewDirIconPath(const QString &path);
         void setRenameIconPath(const QString &path);
         void setRenameIconStyle(const QString &style);
         void setDeleteIconPath(const QString &path);
@@ -167,30 +189,48 @@ namespace hal
          */
         void updateSearchIcon();
 
+        /**
+         * Q_SLOT to select the Directory.
+         */
+        void selectDirectory(ContextTreeItem* item);
+
+        void handleRowsInserted(const QModelIndex &parent, int first, int last);
+
     private Q_SLOTS:
 
-        void handleDeleteShortcutOnFocusChanged(QWidget* oldWidget, QWidget* newWidget);
+        void handleFocusChanged(QWidget* oldWidget, QWidget* newWidget);
+        void handleCreateContextClicked();
+        void handleCreateDirectoryClicked();
+        void handleRenameClicked();
+        void handleDuplicateContextClicked();
+        void handleDeleteClicked();
 
+        void handleContextMenuRequest(const QPoint& point);
+        void handleSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected);
 
     private:
         GraphTabWidget* mTabView;
 
-        QTableView* mContextTableView;
-        ContextTableModel* mContextTableModel;
-        ContextTableProxyModel* mContextTableProxyModel;
+        QTreeView* mContextTreeView;
+        ContextTreeModel* mContextTreeModel;
+        ContextProxyModel* mContextTreeProxyModel;
 
         Searchbar* mSearchbar;
 
         QString mDisabledIconStyle;
 
+        QAction* mNewDirectoryAction;
+
         QAction* mNewViewAction;
         QString mNewViewIconPath;
+        QString mNewDirIconPath;
         QString mNewViewIconStyle;
 
         QAction* mRenameAction;
         QString mRenameIconPath;
         QString mRenameIconStyle;
 
+
         QAction* mDuplicateAction;
         QString mDuplicateIconPath;
         QString mDuplicateIconStyle;
@@ -209,14 +249,6 @@ namespace hal
 
         QShortcut* mShortCutDeleteItem;
 
-        void handleCreateContextClicked();
-        void handleRenameContextClicked();
-        void handleDuplicateContextClicked();
-        void handleDeleteContextClicked();
-
-        void handleContextMenuRequest(const QPoint& point);
-        void handleSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected);
-
         void setToolbarButtonsEnabled(bool enabled);
 
         void toggleSearchbar();

plugins/gui/include/gui/context_manager_widget/models/context_table_proxy_model.h → plugins/gui/include/gui/context_manager_widget/models/context_proxy_model.h

@@ -30,14 +30,15 @@
 
 #include <QRegularExpression>
 #include <QSortFilterProxyModel>
+#include <QMimeData>
 
 namespace hal
 {
     /**
      * @ingroup utility_widgets-context
      * @brief A proxy model to filter the ContextTableModel by a given string.
      */
-    class ContextTableProxyModel : public SearchProxyModel
+    class ContextProxyModel : public SearchProxyModel
     {
         Q_OBJECT
 
@@ -47,7 +48,7 @@ namespace hal
          *
          * @param parent - The widget's parent.
          */
-        ContextTableProxyModel(QObject* parent = nullptr);
+        ContextProxyModel(QObject* parent = nullptr);
 
         /**
          * Determines if the index specified by the row and its parent should be displayed
@@ -60,6 +61,11 @@ namespace hal
          */
         bool filterAcceptsRow(int source_row, const QModelIndex& source_parent) const override;
 
+        QStringList mimeTypes() const override;
+        QMimeData* mimeData(const QModelIndexList &indexes) const override;
+        bool dropMimeData(const QMimeData *mimeData, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
+        bool canDropMimeData(const QMimeData *mimeData, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override;
+
     public Q_SLOTS:
 
         /**
@@ -74,13 +80,13 @@ namespace hal
     protected:
 
         /**
-         * Defines the compare criteria of 2 data entries (might be defined for each column specifically).
+         * Defines the compare criteria of tree entries (might be defined for each column specifically).
          *
          * @param left - The first entry.
          * @param right - The seconds entry.
          * @return True if left < right, False otherwise.
          */
-        bool lessThan(const QModelIndex& left, const QModelIndex& right) const override;
+       bool lessThan(const QModelIndex& left, const QModelIndex& right) const override;
 
     };
 }    // namespace hal