sgi_buslabel.h

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/*
 * LibrePCB - Professional EDA for everyone!
 * Copyright (C) 2013 LibrePCB Developers, see AUTHORS.md for contributors.
 * https://librepcb.org/
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef LIBREPCB_EDITOR_SGI_BUSLABEL_H
#define LIBREPCB_EDITOR_SGI_BUSLABEL_H
 
/*******************************************************************************
 *  Includes
 ******************************************************************************/
#include <librepcb/core/project/schematic/items/si_buslabel.h>
 
#include <QtCore>
#include <QtWidgets>
 
#include <memory>
 
/*******************************************************************************
 *  Namespace / Forward Declarations
 ******************************************************************************/
namespace librepcb {
namespace editor {
 
class GraphicsLayer;
class GraphicsLayerList;
class LineGraphicsItem;
 
/*******************************************************************************
 *  Class SGI_BusLabel
 ******************************************************************************/
 
class SGI_BusLabel final : public QGraphicsItem {
public:
  // Constructors / Destructor
  SGI_BusLabel() = delete;
  SGI_BusLabel(const SGI_BusLabel& other) = delete;
  SGI_BusLabel(SI_BusLabel& label, const GraphicsLayerList& layers) noexcept;
  virtual ~SGI_BusLabel() noexcept;
 
  // General Methods
  SI_BusLabel& getBusLabel() noexcept { return mBusLabel; }
 
  // Inherited from QGraphicsItem
  QRectF boundingRect() const noexcept override { return mBoundingRect; }
  void paint(QPainter* painter, const QStyleOptionGraphicsItem* option,
             QWidget* widget) noexcept override;
 
  // Operator Overloadings
  SGI_BusLabel& operator=(const SGI_BusLabel& rhs) = delete;
 
private:  // Methods
  void busLabelEdited(const SI_BusLabel& obj,
                      SI_BusLabel::Event event) noexcept;
  virtual QVariant itemChange(GraphicsItemChange change,
                              const QVariant& value) noexcept override;
  void updatePosition() noexcept;
  void updateRotation() noexcept;
  void updateText() noexcept;
  void updateAnchor() noexcept;
 
private:  // Data
  SI_BusLabel& mBusLabel;
  std::shared_ptr<const GraphicsLayer> mOriginCrossLayer;
  std::shared_ptr<const GraphicsLayer> mBusLabelLayer;
  QScopedPointer<LineGraphicsItem> mAnchorGraphicsItem;
 
  // Cached Attributes
  QStaticText mStaticText;
  QVector<QLineF> mOverlines;
  QFont mFont;
  bool mRotate180;
  QPointF mTextOrigin;
  QRectF mBoundingRect;
 
  // Slots
  SI_BusLabel::OnEditedSlot mOnEditedSlot;
 
  // Static Stuff
  static QVector<QLineF> sOriginCrossLines;
};
 
/*******************************************************************************
 *  End of File
 ******************************************************************************/
 
}  // namespace editor
}  // namespace librepcb
 
#endif