Element editor : improve code

Better use of signal partsAdded and partsRemoved

sources/editor/UndoCommand/deletepartscommand.cpp

@@ -0,0 +1,66 @@
+/*
+	Copyright 2006-2022 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/>.
+*/
+#include "deletepartscommand.h"
+#include "../elementscene.h"
+
+/**
+ * @brief DeletePartsCommand::DeletePartsCommand
+ * @param scene
+ * @param parts
+ * @param parent
+ */
+DeletePartsCommand::DeletePartsCommand(QPointer<ElementScene> scene,
+									   const QVector<QGraphicsItem *> &parts,
+									   QUndoCommand *parent) :
+	QUndoCommand{parent},
+	m_scene{scene},
+	m_parts{parts}
+{
+	setText(QObject::tr("suppression", "undo caption"));
+	m_scene->qgiManager().manage(parts);
+}
+
+/**
+ * @brief DeletePartsCommand::~DeletePartsCommand
+ */
+DeletePartsCommand::~DeletePartsCommand()
+{
+	if (m_scene) {
+		m_scene->qgiManager().release(m_parts);
+	}
+}
+
+/**
+ * @brief DeletePartsCommand::undo
+ */
+void DeletePartsCommand::undo()
+{
+	if (m_scene) {
+		m_scene->addItems(m_parts);
+	}
+}
+
+/**
+ * @brief DeletePartsCommand::redo
+ */
+void DeletePartsCommand::redo()
+{
+	if (m_scene) {
+		m_scene->removeItems(m_parts);
+	}
+}