first commit, again.

src/model/xqviewmodel.h

@@ -0,0 +1,136 @@
+/***************************************************************************
+
+    source::worx xtree
+    Copyright © 2024-2025 c.holzheuer
+    christoph.holzheuer@gmail.com
+
+    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.
+
+***************************************************************************/
+
+
+#ifndef XQVIEWMODEL_H
+#define XQVIEWMODEL_H
+
+#include <QUndoStack>
+#include <QMenu>
+#include <QStandardItemModel>
+#include <QAbstractItemView>
+
+#include <xqsimpleclipboard.h>
+#include <xqmodelsectionlist.h>
+#include <xqitemfactory.h>
+#include <xqcontextmenu.h>
+
+
+class XQTreeTable;
+class XQItem;
+class XQCommand;
+
+
+//! ein erweitertes QStandardItemModel welches 'seine' view bereits enthält.
+
+class XQViewModel : public QStandardItemModel
+{
+  Q_OBJECT
+
+public:
+
+  XQViewModel(QObject* parent = nullptr);
+  virtual ~XQViewModel() = default;
+
+  XQTreeTable* treeTable();
+  virtual void setTreeTable( XQTreeTable* mainView );
+
+  QUndoStack* undoStack();
+  void setUndoStack( QUndoStack* undoStack );
+
+  virtual void initModel( const QString& modelName);
+
+  //little helpers
+  const XQItem& xqRootItem();
+
+  XQItem&       xqItemFromIndex(const QModelIndex& index) const;
+  XQItem&       xqFirstItem(int row) const;
+
+  // undo-/redo-able stuff
+
+  virtual void cmdToggleSection( XQCommand& command );
+  virtual void cmdCut( XQCommand& command );
+  virtual void cmdCutUndo( XQCommand& command );
+  virtual void cmdPaste( XQCommand& command );
+  virtual void cmdPasteUndo( XQCommand& command );
+  virtual void cmdDelete( XQCommand& command );
+  virtual void cmdDeleteUndo( XQCommand& command );
+  virtual void cmdNew( XQCommand& command );
+  virtual void cmdNewUndo( XQCommand& command );
+
+  QHash<int, QByteArray> roleNames() const override;
+
+  /*!
+
+  Derzeit wird die default-implementierung von data/setData genutzt. hier wäre dann die
+  Stelle um setData & data an externe 'handler' umzubiegen, siehe giovannies 'model-injection'
+
+  QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override
+  {
+    return QStandardItemModel::data( index, role );
+  }
+
+  bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole) override
+  {
+    qDebug() << " --- setData: " << value.toString();
+    return QStandardItemModel::setData( index, value, role );
+  }
+
+  */
+
+public slots:
+
+  virtual void onShowContextMenu(const QPoint& point);
+  virtual void onActionTriggered(QAction* action);
+
+  // handle XQCommands ( == UndoCommand )
+  virtual void onCommandRedo( XQCommand& command );
+  virtual void onCommandUndo( XQCommand& command );
+
+signals:
+
+  void itemCreated( XQItem* newItem );
+  void sectionCreated( const XQModelSection& section );
+  void sectionToggled( const XQModelSection& section );
+
+protected:
+
+  void addSection(const XQItemList& list, const XQNodePtr& sheetNode );
+  virtual void initContextMenu() = 0;
+
+  // __fixme: should be created from xml
+  virtual void setupViewProperties();
+
+protected:
+
+  using MemCall    = void (XQViewModel::*)(XQCommand&);
+  using MemCallMap = QMap<XQCommand::CmdType,MemCall>;
+
+  // das eine reference auf ein globales singleton
+  XQItemFactory&        _itemFactory;
+  XQSimpleClipBoard     _clipBoard;
+  XQModelSectionList    _sections;
+
+  XQTreeTable*       _treeTable{};
+  //QAbstractItemView* _treeTable{};
+  QUndoStack*       _undoStack{};
+  XQContextMenu*    _contextMenu{};
+
+  //! Die Modelbeschreibung
+  XQNodePtr      _modelSheet{};
+  //! Der eigentliche Inhalt
+  XQNodePtr      _contentRoot{};
+
+};
+
+#endif // XQVIEWMODEL_H