connectionframe.h

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#ifndef PVS_CONNECTIONFRAME_H_
#define PVS_CONNECTIONFRAME_H_

#include <QGroupBox>
#include <utility>

class QBoxLayout;
class QLabel;

class MainWindow;
class Client;

class ConnectionFrame : public QGroupBox
{

   Q_OBJECT

private:

   QString _computerId;

   QBoxLayout *_mainLayout;
   QBoxLayout *_iconLayout;
   QLabel *_lblUserName;
   QLabel *_lblHostName;
   QLabel *_lblExamMode;

   QLabel *_icoCam, *_icoEye, *_icoLock;
   QList<QLabel*> _icons;

   QImage _remoteScreen;

   QPoint _clickPoint;
   QPoint _previousPosition;
   QPoint _gridPosition;
   QSize _desiredThumbSize;

   Client *_client{};

   int _timerId{}, _timerCounter{};
   bool _isSelected{};
   bool _isTutor{};
   bool _isFromRoomplan;

   void showDefaultThumb();
   void calcDesiredThumbSize(const QSize &frameSize);
   QLabel* addIcon(const QIcon* icon);

   MainWindow *_mainWindow;

public:

   static bool paintDisabled;

   ConnectionFrame(MainWindow* main, QWidget* parent, bool fromRoomplan = false);
   ~ConnectionFrame() override;

   const QPoint& getGridPosition() const { return _gridPosition; }
   void setGridPosition(int x, int y);
   void setGridPosition(const QPoint& pos);
   void updateGeometry();

   void assignClient(Client *client);
   void setSelection(bool selected);
   bool isSelected() const { return _isSelected; }

   const QString& computerId() const { return _computerId; }
   void setComputerId(QString computerId) {
      if (_client != nullptr)
         return;
      _computerId = std::move(computerId); updateLabels();
   }
   Client* client() const { return _client; }

   bool isTutor() const { return _isTutor; }
   bool isFromRoomplan() const { return _isFromRoomplan; }
   void setTutor(bool b);

protected:
   void resizeEvent(QResizeEvent* event) override;
   void mouseDoubleClickEvent(QMouseEvent* event) override;
   void mouseReleaseEvent(QMouseEvent* e) override;
   void enterEvent(QEvent* event) override;
   void leaveEvent(QEvent* event) override;
   void mousePressEvent(QMouseEvent* event) override;
   void mouseMoveEvent(QMouseEvent* event) override;
   void paintEvent(QPaintEvent *event) override;
   void timerEvent(QTimerEvent* event) override;

signals:
   void frameMoving(ConnectionFrame* frame);
   void frameMoved(ConnectionFrame* frame);
   void doubleClicked(ConnectionFrame* frame);
   void clicked(ConnectionFrame* frame);

private slots:
   void onClientDisconnected();
   void onThumbUpdated(Client* client, const QImage& thumb);
   void updateAppearance();
   void updateLabels();
};

#endif