builderitem.h

Go to the documentation of this file.

/*
 * SPDX-FileCopyrightText: 2006-2021 Istituto Italiano di Tecnologia (IIT)
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
#ifndef BUILDERITEM_H
#define BUILDERITEM_H
 
#include <QObject>
#include <QAction>
#include <QPainter>
#include <QGraphicsPolygonItem>
#include <QGraphicsScene>
#include <QGraphicsItem>
#include <QGraphicsSceneMouseEvent>
#include <yarp/manager/manager.h>
 
#include "commons.h"
 
using namespace yarp::manager;
 
class PortItem;
class ItemSignalHandler;
class Arrow;
 
 
 
class BuilderItem :   public QGraphicsObject
{
    friend class PortItem;
    friend class Arrow;
    friend class Label;
 
public:
 
    BuilderItem(QGraphicsObject * parent = 0) : QGraphicsObject(parent),
        itemType(ModuleItemType),
        offset(QPointF(0,0)),
        pressed(false),
        moved(false),
        creatingNewConnection(false),
        allowInputs(false),
        allowOutputs(false),
        snap(false),
        nestedInApp(false),
        sigHandler(nullptr)
    {}
 
    QRectF boundingRect() const override = 0;
    virtual QPointF connectionPoint() = 0;
    int type() const override = 0;
 
    QString getItemName();
    QPointF getStartingPoint();
    ItemSignalHandler *signalHandler();
    void removeArrow(Arrow *arrow);
    void removeArrows();
    void addArrow(Arrow *arrow);
    QList<Arrow *>* getArrows();
 
    bool arrowAlreadyPresent(BuilderItem *endItem);
    void updateConnections();
    bool allowInputConnections();
    bool allowOutputConnections();
    void snapToGrid(bool snap);
    QPointF computeTopLeftGridPoint(const QPointF &pointP);
    QList<QAction*> getActions();
    void setActions(QList<QAction*>);
    bool isNestedInApp();
 
 
protected:
    QFont font;
    ItemType itemType;
    QString itemName;
 
    QRectF mainRect;
    QRectF boundingR;
 
    QPointF offset;
 
    bool pressed;
    bool moved;
    bool creatingNewConnection;
    bool allowInputs;
    bool allowOutputs;
    bool snap;
    bool nestedInApp;
 
    ItemSignalHandler *sigHandler;
    QList<Arrow *> arrows;
    QList<QAction*> actions;
 
    QPointF startingPoint;
 
};
 
#endif // BUILDERITEM_H