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#pragma once
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#ifndef SCHEMATICNODE_H
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#define SCHEMATICNODE_H
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#include <qgraphicsitem></qgraphicsitem>
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#include "schematicviewer.h"
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// forward declarations
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class SchematicPort;
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//========================================================
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//
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//  StageSchematicName.
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//
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//========================================================
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class SchematicName final : public QGraphicsTextItem {
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  Q_OBJECT
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  double m_width;
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  double m_height;
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public:
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  SchematicName(QGraphicsItem *parent, double width, double height);
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  ~SchematicName();
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  bool eventFilter(QObject *object, QEvent *event) override;
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  void setName(const QString &name);
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protected:
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  void focusInEvent(QFocusEvent *fe) override;
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  void focusOutEvent(QFocusEvent *fe) override;
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  void keyPressEvent(QKeyEvent *ke) override;
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signals:
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  void focusOut();
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protected slots:
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  void onContentsChanged();
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};
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//========================================================
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//
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// SchematicThumbnailToggle
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//
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//========================================================
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class SchematicThumbnailToggle final : public QObject, public QGraphicsItem {
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  Q_OBJECT
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#ifndef MACOSX
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  Q_INTERFACES(QGraphicsItem)
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#endif
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  bool m_isDown;
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public:
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  SchematicThumbnailToggle(SchematicNode *parent, bool isOpened);
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  ~SchematicThumbnailToggle();
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  QRectF boundingRect() const override;
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override;
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  void setIsDown(bool value);
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protected:
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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signals:
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  void toggled(bool isOpened);
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};
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//========================================================
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//
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// SchematicToggle
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//
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//========================================================
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class SchematicToggle : public QObject, public QGraphicsItem {
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  Q_OBJECT
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#ifndef MACOSX
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  Q_INTERFACES(QGraphicsItem)
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#endif
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protected:
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  QIcon m_imageOn, m_imageOn2, m_imageOff;
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  QColor m_colorOn, m_colorOff;
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  int m_state;
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  int m_flags;
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  int m_width, m_height;
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public:
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  enum { eIsParentColumn = 0x01, eEnableNullState = 0x02 };
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  SchematicToggle(SchematicNode *parent, const QIcon &imageOn, QColor colorOn,
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                  int flags, bool isNormalIconView = true);
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  SchematicToggle(SchematicNode *parent, const QIcon &imageOn, QColor colorOn,
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                  const QIcon &imageOff, QColor colorOff, int flags,
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                  bool isNormalIconView = true);
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  //! the schematic toggle can be a 3-state or a 2-state toggle!
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  SchematicToggle(SchematicNode *parent, const QIcon &imageOn,
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                  const QIcon &imageOn2, QColor colorOn, int flags,
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                  bool isNormalIconView = true);
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  SchematicToggle(SchematicNode *parent, const QIcon &imageOn,
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                  const QIcon &imageOn2, QColor colorOn, const QIcon &imageOff,
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                  QColor colorOff, int flags, bool isNormalIconView = true);
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  ~SchematicToggle();
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  QRectF boundingRect() const override;
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  // reimplemeted in SchematicToggle_SplineOptions
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override;
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  //! this is used for a 2-state toggle;
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  void setIsActive(bool value) { m_state = value ? 1 : 0; }
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  //! this is used for a 3-state toggle;
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  void setState(int state) { m_state = state; }
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  void setSize(int width, int height) {
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    m_width  = width;
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    m_height = height;
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    update();
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  }
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protected:
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  // reimplemeted in SchematicToggle_SplineOptions
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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  void contextMenuEvent(QGraphicsSceneContextMenuEvent *cme) override;
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signals:
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  //! this is triggered for a 2-state toggle;
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  void toggled(bool isChecked);
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  //! this is triggered for a 3-state toggle;
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  void stateChanged(int state);
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};
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//========================================================
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class SchematicToggle_SplineOptions final : public SchematicToggle {
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  Q_OBJECT
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public:
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  SchematicToggle_SplineOptions(SchematicNode *parent, const QPixmap &pixmap,
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                                int flags)
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      : SchematicToggle(parent, QIcon(pixmap), QColor(0, 0, 0, 0), flags) {}
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  SchematicToggle_SplineOptions(SchematicNode *parent, const QPixmap &pixmap1,
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                                const QPixmap &pixmap2, int flags)
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      : SchematicToggle(parent, QIcon(pixmap1), QIcon(pixmap2),
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                        QColor(0, 0, 0, 0), flags) {}
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override;
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protected:
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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};
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//========================================================
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//
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// SchematicHandleSpinBox
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//
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//========================================================
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class SchematicHandleSpinBox : public QObject, public QGraphicsItem {
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  Q_OBJECT
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#ifndef MACOSX
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  Q_INTERFACES(QGraphicsItem)
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#endif
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protected:
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  Qt::MouseButton m_buttonState;
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  int m_delta;
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  QPixmap m_pixmap;
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public:
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  SchematicHandleSpinBox(QGraphicsItem *parent);
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  ~SchematicHandleSpinBox();
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  QRectF boundingRect() const override;
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override;
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signals:
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  void modifyHandle(int);
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  void changeStatus();
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  void sceneChanged();
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  void handleReleased();
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protected:
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  void mouseMoveEvent(QGraphicsSceneMouseEvent *me) override;
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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  void mouseReleaseEvent(QGraphicsSceneMouseEvent *me) override;
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};
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//========================================================
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//
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// class SchematicLink
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//
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//========================================================
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/*!
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        \brief The class provides method to draw links between two SchematicPort
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        A link can has a cubic shape or a line shape and is drawing calling the
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   updatePath() method. The class also provides
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        methods to retrieve the start SchematicPort and the end SchematicPort of
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   the link and a method to remove the
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        link from these two SchematicPort.
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        \see SchematicPort, SchematicNode.
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*/
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class SchematicLink : public QObject, public QGraphicsItem {
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  Q_OBJECT
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  SchematicPort *m_startPort, *m_endPort;
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  QPainterPath m_path, m_hitPath;
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  bool m_lineShaped;
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  bool m_highlighted;
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public:
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  SchematicLink(QGraphicsItem *parent, QGraphicsScene *scene);
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  ~SchematicLink();
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  //! Reimplements the pure virtual QGraphicsItem::boundingRect() method.
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  QRectF boundingRect() const override;
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  //! Reimplements the virtual QGraphicsItem::shape() method.
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  QPainterPath shape() const override;
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  //! Reimplements the pure virtual QGraphicsItem::paint() method.
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override;
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  /*! Update the link path.\n
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    The link is has a cubic shape starting from \b startPos and ending to \b
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    endPos.
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    If a link path  already exists, the path is updating otherwise a path is
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    created.*/
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  void updatePath(const QPointF &startPos, const QPointF &endPos);
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  //! Update the link path.\n
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  //! Call the updatePath(const QPointF &startPos, const QPointF &endPos)
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  //! method. The \b start pos and the \b endPos
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  //! are taken from the the given \b startPort and \b endPort.
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  void updatePath(SchematicPort *startPort, SchematicPort *endPort);
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  void updatePath() { updatePath(m_startPort, m_endPort); }
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  void updateEndPos(const QPointF &endPos);
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  //! Sets the start SchematicPort of the link to \b startPort.
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  void setStartPort(SchematicPort *startPort) { m_startPort = startPort; }
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  //! Sets the start SchematicPort of the link to \b startPort.
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  void setEndPort(SchematicPort *endPort) { m_endPort = endPort; }
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  //! Returns the start SchematicPort of the link.
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  SchematicPort *getStartPort() const { return m_startPort; }
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  //! Returns the end SchematicPort of the link.
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  SchematicPort *getEndPort() const { return m_endPort; }
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  /*! Returns the other SchematicPort linked to the specified \b port.\n
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    Returns 0 if \b port isn't neither the start SchematicPort eihter the end
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    SchematicPort of this link.*/
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  SchematicPort *getOtherPort(const SchematicPort *port) const;
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  /*! Returns the other SchematicNode linked to the specified \b node.\n
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    Returns 0 if \b node isn't neither the parent node of the start
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    SchematicPort
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    eihter the parent node of the end SchematicPort of the link.*/
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  SchematicNode *getOtherNode(const SchematicNode *node) const;
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  //! Returns true if the link is line shaped.
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  bool isLineShaped() { return m_lineShaped; }
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  void setLineShaped(bool value) { m_lineShaped = value; }
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  bool isHighlighted() { return m_highlighted; }
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  void setHighlighted(bool value) { m_highlighted = value; }
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protected:
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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  void mouseReleaseEvent(QGraphicsSceneMouseEvent *me) override;
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};
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//========================================================
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//
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// class SchematicPort
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//
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//========================================================
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/*!
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        \brief The class provides method to draw and andle a SchematicPort.
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        A SchematicPort is a child af a SchematicNode and is used to link a
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  parent node to other nodes. It can be an input port,
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        or better , a port used to accept link coming from other node. A port
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  that isn't an input port cannot accept
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        links but can begin to draw links.\n
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  A SchematicPort has got a hook thet is a position where links starts or
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  ends.\n
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        A SchematicPort can be linked to an arbitriary number of links.
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        A SchematicPort handles a container of all links to retrieve all linked
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  node; each link is indexed using a
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        progressive number assigned when the link is inserted to the container.
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        \see SchematicNode, SchematicLink.
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*/
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class SchematicPort : public QObject, public QGraphicsItem {
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  Q_OBJECT
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#ifndef MACOSX
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  Q_INTERFACES(QGraphicsItem)
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#endif
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protected:
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  Qt::MouseButton m_buttonState;
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  SchematicNode *m_node;
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  QPointF m_hook;
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  bool m_highlighted;
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  QList<schematiclink *=""> m_ghostLinks;</schematiclink>
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  SchematicPort *m_linkingTo;
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  QList<schematiclink *=""> m_links;</schematiclink>
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  int m_type;
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public:
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  SchematicPort(QGraphicsItem *parent, SchematicNode *node, int type);
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  ~SchematicPort();
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  SchematicNode *getNode() const { return m_node; }
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  QRectF boundingRect() const override { return QRectF(0, 0, 1, 1); };
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override{};
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  //! Add the \b link to the links container.
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  void addLink(SchematicLink *link) { m_links.push_back(link); }
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  //! Returns the number of the link contained in the links container or, it is
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  //! the same, the number of nodes
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  //! linked to this SchematicPort
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  int getLinkCount() const { return m_links.size(); }
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  //! Removes the link form the links container.\n
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  //! It doesn't remove the link from the scene and it doesn't delete the link!
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  void removeLink(SchematicLink *link);
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  //! Removes \b link from the scene and the m_links list; delete it .
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  void eraseLink(SchematicLink *link);
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  //! Removes all links from the scene and the m_links list; delete them .
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  void eraseAllLinks();
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  //! Returns the link indexed with \b index.\n
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  //!\note A link is indexed with a progressive number when is inserted in the
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  //! container.
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  SchematicLink *getLink(int index) const {
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    return (index < m_links.size() && index >= 0) ? m_links[index] : 0;
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  }
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  //! Returns the node linked with the link \b index.
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  SchematicNode *getLinkedNode(int index) const {
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    return m_links[index] ? m_links[index]->getOtherNode(m_node) : 0;
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  }
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  //! Make a link from this port to the given port.
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  virtual SchematicLink *makeLink(SchematicPort *port);
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  //! Check and make a connection between the data Objects.
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  //! Returns true if it is possible to have a connection between the data
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  //! Object represented by this SchematicPort
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  //! and that represented by \b port. If check only is false no connections is
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  //! created!
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  //! \see TFxPort, TStageObject.
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  virtual bool linkTo(SchematicPort *port, bool checkOnly = false) = 0;
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  // !Return the hook poeistion of the port.
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  QPointF getHook() const { return m_hook; }
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  //! Returns true if this SchematicPort is linked to \b port. Otherwise returns
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  //! false.
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  bool isLinkedTo(SchematicPort *port) const;
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  void highLight(bool value) { m_highlighted = value; }
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  bool isHighlighted() const { return m_highlighted; }
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  //! Updates all links of the ports.
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  void updateLinksGeometry();
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  //! Returns the scene position of the link end
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  QPointF getLinkEndPoint() const;
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  //! Returns the type of the port. \see eFxSchematicPortType,
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  //! eStageSchematicPortType
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  int getType() const { return m_type; }
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  //! Set the type of the port.
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  void setType(int type) { m_type = type; }
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Toshihiro Shimizu 890ddd
protected:
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  void mouseMoveEvent(QGraphicsSceneMouseEvent *me) override;
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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  void mouseReleaseEvent(QGraphicsSceneMouseEvent *me) override;
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Toshihiro Shimizu 890ddd
private:
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  virtual SchematicPort *searchPort(const QPointF &scenePos) = 0;
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  // linkingPort is used only for stage schematic port -
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  // in order to enable to connect from multiple node at the same time.
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  virtual void hideSnappedLinks(SchematicPort *linkingPort) = 0;
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  virtual void showSnappedLinks(SchematicPort *linkingPort) = 0;
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Toshihiro Shimizu 890ddd
signals:
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  void isClicked();
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  void isReleased(const QPointF &);
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  void sceneChanged();
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  void xsheetChanged();
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};
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Toshihiro Shimizu 890ddd
//========================================================
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//
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// class SchematicNode
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//
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//========================================================
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class SchematicNode : public QObject, public QGraphicsItem {
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  Q_OBJECT
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#ifndef MACOSX
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  Q_INTERFACES(QGraphicsItem)
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#endif
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Toshihiro Shimizu 890ddd
protected:
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  SchematicScene *m_scene;
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  qreal m_width, m_height;
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  Qt::MouseButton m_buttonState;
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  QMap<int, *="" schematicport=""> m_ports;</int,>
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Toshihiro Shimizu 890ddd
public:
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  SchematicNode(SchematicScene *scene);
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  ~SchematicNode();
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  QRectF boundingRect() const override;
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  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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             QWidget *widget = 0) override;
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  SchematicPort *addPort(int portId, SchematicPort *port);
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  void erasePort(int portId);
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  SchematicPort *getPort(int portId) const;
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  QList<schematicnode *=""> getLinkedNodes(int portId) const;</schematicnode>
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  virtual void setSchematicNodePos(const QPointF &pos) const = 0;
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  virtual void setPosition(const QPointF &newPos)            = 0;
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  void updateLinksGeometry();
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  virtual void onClicked(){};
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Toshihiro Shimizu 890ddd
protected:
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  void mouseMoveEvent(QGraphicsSceneMouseEvent *me) override;
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  void mousePressEvent(QGraphicsSceneMouseEvent *me) override;
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  void mouseReleaseEvent(QGraphicsSceneMouseEvent *me) override;
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Toshihiro Shimizu 890ddd
signals:
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  void sceneChanged();
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  void xsheetChanged();
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  void nodeChangedSize();
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};
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#endif  // SCHEMATICNODE_H