#ifndef DISPLAY_SCHEMA_H
#define DISPLAY_SCHEMA_H


#include <QGraphicsView>
#include <QWidget>

#include <comdel/domain/schema.h>
#include <comdel/domain/library.h>

namespace display {

    class BusConnection;

class Schema: public QGraphicsView
{
    Q_OBJECT

public:

    enum State {
        DEFAULT,
        CREATING_CONNECTION
    };

    struct Context {
        display::Pin *pin;
        QPointF startingPoint;
    };

    State state = DEFAULT;
    Context context;

    Schema();

    std::vector<BusConnection*> connections;

    void setSchema(domain::Schema* schema, domain::Library* library);

    void updateConnections();

protected:

    void dragEnterEvent(QDragEnterEvent *event) override;
    void dropEvent(QDropEvent *event) override;
    void dragMoveEvent(QDragMoveEvent *event) override;

private:
    QGraphicsScene scene;

    domain::Schema* schema;
    domain::Library* library;
};

} // namespace display

#endif // DISPLAY_SCHEMA_H