node_graphicsitem.hpp

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#pragma once
 
#include <QFontMetrics>
#include <QGraphicsItem>
#include <QGraphicsObject>
#include <QGraphicsSceneHoverEvent>
#include <QGraphicsSceneMouseEvent>
#include <QMargins>
#include <QPainter>
#include <QPen>
#include <QPointF>
 
#include "../../node/node.hpp"
#include "pad.hpp"
 
static const QMargins BOX_MARGIN(7, 7, 7, 7);
static const QColor BOX_COLOR = QColorConstants::Svg::midnightblue;
static const QColor BOX_COLOR_AT_SELECTION = Qt::red;
static const QColor INNER_COLOR = QColorConstants::Svg::mistyrose;
static const int BOX_WIDTH = 2;
static const int FONT_SIZE = 15; // points
//static const int PAD_SIZE = 5;
static const int PAD_SPACING = 20;
 
class NodeGraphicsItem : public QGraphicsObject
{
    Q_OBJECT
 
public:
    static const int Type = QGraphicsItem::UserType + 2;
 
    explicit NodeGraphicsItem(QGraphicsItem *parent = nullptr, Node *node = nullptr);
 
    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) override;
    QRectF boundingRect() const override;
    int type() const override { return Type; }

    inline Node *getNode() { return m_node; }
 
private:
    void onNodeObjectNameChanged(const QString &object_name);
    void drawOuterFrame(QPainter *painter);
    void createPads(QRect frame_geometry);
 
    Node *m_node;
    QRect m_frame_geometry;
    QRect m_node_name_geometry;
    QFont m_font;
    QString m_object_name;
    QList<QMetaObject::Connection> m_node_connections;
};