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https://github.com/qelectrotech/qelectrotech-source-mirror.git
synced 2026-09-28 13:24:14 +02:00
Jeff Patterson
825a1a594d
Mirror (M) and Flip (F) in the element editor reflected the selected parts across the element origin: every part's mirror() and flip() negated the scene x or y coordinate. A part drawn to the right of the origin landed the same distance to the left, so the selection jumped to the other side of the canvas instead of turning around. MirrorElementsCommand and FlipElementsCommand now compute the united scene bounding rectangle of the selected items and reflect across the vertical or horizontal line through its center. The center is snapped to the nearest half of the diagram grid, so points that were on the grid stay on the grid after the reflection. Terminals in particular keep their grid alignment. Each part's mirror() and flip() takes the axis coordinate as a parameter with a default of 0, so the previous behavior remains available to any other caller. The command stores the axis when it is created and undo reapplies the same reflection, which is its own inverse, so the existing undo path is unchanged. Parts covered: PartArc, PartDynamicTextField, PartEllipse, PartLine, PartPolygon, PartRectangle, PartTerminal, PartText. Fixes #812
125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PART_POLYGON_H
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#define PART_POLYGON_H
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#include <QPolygonF>
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#include "customelementgraphicpart.h"
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class QPropertyUndoCommand;
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class QetGraphicsHandlerItem;
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class QAction;
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/**
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@brief The PartPolygon class
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This class represents a polygon primitive which may be used to compose the
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drawing of an electrical element within the element editor.
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*/
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class PartPolygon : public CustomElementGraphicPart
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{
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Q_OBJECT
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Q_PROPERTY(bool closed READ isClosed WRITE setClosed)
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Q_PROPERTY(QPolygonF polygon READ polygon WRITE setPolygon)
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// constructors, destructor
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public:
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PartPolygon(QETElementEditor *editor, QGraphicsItem *parent = nullptr);
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~PartPolygon() override;
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private:
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PartPolygon(const PartPolygon &);
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signals:
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void closedChange();
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void polygonChanged();
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// methods
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public:
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enum { Type = UserType + 1105 };
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/**
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* Enable the use of qgraphicsitem_cast to safely cast a QGraphicsItem into a PartPolygon.
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* @return the QGraphicsItem type
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*/
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int type() const override { return Type; }
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void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) override;
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QString name() const override { return(QObject::tr("polygone", "element part name")); }
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QString xmlName() const override { return(QString("polygon")); }
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void fromXml(const QDomElement &) override;
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const QDomElement toXml(QDomDocument &) const override;
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QPainterPath shape () const override;
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QPainterPath shadowShape() const override;
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QRectF boundingRect() const override;
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bool isUseless() const override;
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QRectF sceneGeometricRect() const override;
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void startUserTransformation(const QRectF &) override;
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void handleUserTransformation(const QRectF &, const QRectF &) override;
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QET::ScalingMethod preferredScalingMethod() const override;
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QPolygonF polygon () const;
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void setPolygon (const QPolygonF &polygon);
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void addPoint (const QPointF &point);
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void setLastPoint (const QPointF &point);
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void removeLastPoint ();
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bool isClosed () const {return m_closed;}
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void setClosed (bool close);
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void setHandlerColor(QPointF pos, const QColor &color) final;
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void resetAllHandlerColor() final;
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void setRotation (qreal angle);
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qreal rotation () const;
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void flip(qreal axis_y = 0);
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void mirror(qreal axis_x = 0);
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void addHandler() override;
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void removeHandler() override;
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protected:
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QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
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bool sceneEventFilter(QGraphicsItem *watched, QEvent *event) override;
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void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
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private:
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void adjustHandlerPos();
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void handlerMousePressEvent (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
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void handlerMouseMoveEvent (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
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void handlerMouseReleaseEvent (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
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void insertPoint();
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void removePoint();
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bool m_closed;
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QList<QPointF> saved_points_;
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QPolygonF m_polygon;
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QPropertyUndoCommand *m_undo_command;
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int m_vector_index = -1;
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QVector<QetGraphicsHandlerItem *> m_handler_vector;
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QAction *m_insert_point,
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*m_remove_point;
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QPointF m_context_menu_pos;
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qreal m_rot;
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};
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#endif
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