PLC Manager

2026-08-03 10:34:14 +02:00 · 2026-07-27 22:16:52 +02:00
parent 0a4b337115
commit b3a8ae898e
32 changed files with 4157 additions and 177 deletions
@@ -0,0 +1,89 @@
+/*
+	Copyright 2006-2026 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 PARTPLCTABLE_H
+#define PARTPLCTABLE_H
+
+#include "customelementgraphicpart.h"
+#include "../../QetGraphicsItemModeler/qetgraphicshandleritem.h"
+
+#include <QVector>
+
+/**
+	@brief The PartPlcTable class
+	This class represents a PLC I/O table preview in the element editor.
+	It shows the user where the PLC table will appear at runtime, so they
+	can position other element parts (rectangles, terminals, etc.) around it.
+	The actual PLC data is read from ElementScene::elementData().
+*/
+class PartPlcTable : public CustomElementGraphicPart
+{
+	Q_OBJECT
+
+	Q_PROPERTY(QRectF rect READ rect WRITE setRect)
+
+	public:
+		PartPlcTable(QETElementEditor *editor, QGraphicsItem *parent = nullptr);
+		~PartPlcTable() override;
+
+		enum { Type = UserType + 1120 };
+		int     type  () const override { return Type; }
+		void    paint (QPainter *, const QStyleOptionGraphicsItem *, QWidget * = nullptr) override;
+		QString name  () const override { return QObject::tr("table PLC", "element part name"); }
+
+		QString           xmlName () const override { return QString("plc_table"); }
+		const QDomElement toXml   (QDomDocument &) const override;
+		void              fromXml (const QDomElement &) override;
+
+		QRectF rect() const;
+		void   setRect(const QRectF &rect);
+
+		QRectF  sceneGeometricRect() const override;
+		QPainterPath shape () const override;
+		QPainterPath shadowShape() const override;
+		QRectF boundingRect() const override;
+		bool   isUseless() const override;
+
+		void startUserTransformation(const QRectF &) override;
+		void handleUserTransformation(const QRectF &, const QRectF &) override;
+
+		void addHandler() override;
+		void removeHandler() override;
+
+	protected:
+		void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
+		QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
+		bool sceneEventFilter(QGraphicsItem *watched, QEvent *event) override;
+
+	private:
+		void switchResizeMode();
+		void adjustHandlerPos();
+		void handlerMousePressEvent   (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
+		void handlerMouseMoveEvent    (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
+		void handlerMouseReleaseEvent (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
+		QSizeF calculateTableSize() const;
+
+	private:
+		QRectF m_rect,
+			   m_old_rect;
+		QList<QPointF> saved_points_;
+		int m_resize_mode = 1,
+			m_vector_index = -1;
+		QVector<QetGraphicsHandlerItem *> m_handler_vector;
+};
+
+#endif // PARTPLCTABLE_H