qelectrotech-source-mirror/sources/undocommand/deleteqgraphicsitemcommand.h

/*
	Copyright 2006-2021 The QElectroTech Team
	This file is part of QElectroTech.

	QElectroTech 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.

	QElectroTech 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 QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DELETEQGRAPHICSITEMCOMMAND_H
#define DELETEQGRAPHICSITEMCOMMAND_H

#include "../diagramcontent.h"

#include <QHash>
#include <QUndoCommand>

class Diagram;
class ElementTextItemGroup;
class Terminal;
class QetGraphicsTableItem;
class QGraphicsScene;

class DeleteQGraphicsItemCommand : public QUndoCommand
{
	public:
		DeleteQGraphicsItemCommand(Diagram *diagram, const DiagramContent &content, QUndoCommand * parent = nullptr);
		~DeleteQGraphicsItemCommand() override;

	private:
		DeleteQGraphicsItemCommand(const DeleteQGraphicsItemCommand &);

		void setPotentialsOfRemovedElements();
		Terminal *terminalInSamePotential(Terminal *terminal, Conductor *conductor_to_exclude);

	public:
		void undo() override;
		void redo() override;

		// attributes
	private:
		DiagramContent m_removed_contents;
		Diagram *m_diagram;
		QHash <Element *, QList<Element *> > m_link_hash; /// keep linked element for each removed element linked to other element.
		QHash <DynamicElementTextItem *, Element *> m_elmt_text_hash; /// Keep the parent element of each deleted dynamic element text item
		QHash <DynamicElementTextItem *, ElementTextItemGroup *> m_grp_texts_hash; ///Keep the parent group of each deleted element text item
		QList <QPair<Terminal *, Terminal *>> m_connected_terminals;
		QHash <QetGraphicsTableItem *, QPointer<QGraphicsScene>> m_table_scene_hash;
		bool m_remove_linked_table = false;
};

#endif // DELETEQGRAPHICSITEMCOMMAND_H