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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
93 lines
3.3 KiB
C++
93 lines
3.3 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_ARC_H
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#define PART_ARC_H
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#include "abstractpartellipse.h"
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class QPropertyUndoCommand;
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class QetGraphicsHandlerItem;
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/**
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@brief The PartArc class
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This class represents an elliptical arc primitive which may be used to
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compose the drawing of an electrical element within the element editor.
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*/
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class PartArc : public AbstractPartEllipse
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{
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Q_OBJECT
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public:
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PartArc(QETElementEditor *editor, QGraphicsItem *parent = nullptr);
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~PartArc() override;
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private:
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PartArc(const PartArc &);
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// methods
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public:
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enum { Type = UserType + 1101 };
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/**
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Enable the use of qgraphicsitem_cast to safely cast a QGraphicsItem into a PartArc.
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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 * = nullptr) override;
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//Name and XML
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QString name() const override { return(QObject::tr("arc", "element part name")); }
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QString xmlName() const override { return(QString("arc")); }
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const QDomElement toXml (QDomDocument &) const override;
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void fromXml (const QDomElement &) override;
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QPainterPath shape() const override;
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QPainterPath shadowShape() const override;
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void setRect(const QRectF &rect) override {AbstractPartEllipse::setRect(rect); adjustHandlerPos();}
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void setStartAngle(const int &start_angle) override {AbstractPartEllipse::setStartAngle(start_angle); adjustHandlerPos();}
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void setSpanAngle(const int &span_angle) override {AbstractPartEllipse::setSpanAngle(span_angle); adjustHandlerPos();}
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QRectF sceneGeometricRect() const override;
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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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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
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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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private:
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void switchResizeMode();
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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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private:
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QPropertyUndoCommand *m_undo_command = nullptr;
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QPropertyUndoCommand *m_undo_command2 = nullptr;
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int m_resize_mode = 1,
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m_vector_index = -1;
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QPointF m_span_point;
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QVector<QetGraphicsHandlerItem *> m_handler_vector;
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qreal m_rot = 0;
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};
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#endif
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