QRootWindow.h

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// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#ifndef QROOTWINDOW_H
#define QROOTWINDOW_H

#include <QWidget>

#include "RtypesCore.h"

class QMouseEvent;
class QPaintEvent;
class TGLayoutHints;
class Event_t;
class TQRootFrame;
class TGFrame;
class TGCompositeFrame;

class QRootWindow : public QWidget {
   Q_OBJECT

   public:
      QRootWindow( QWidget *parent = nullptr, const char *name = nullptr, bool designermode = false);

      virtual ~QRootWindow();

      TGCompositeFrame* GetRootFrame();
      int GetRootWid() const { return fiWinid; }

      void AddSubFrame(TGFrame* f, TGLayoutHints* l = nullptr);

      void SetEditable(bool on=true);

      void SetResizeOnPaint(bool on = true) { fbResizeOnPaint = on; }

      double ScaledWidth();

      double ScaledHeight();

   protected:

      bool eventFilter(QObject *, QEvent *) override;
      void paintEvent(QPaintEvent *e) override;
      void closeEvent(QCloseEvent *e) override;

      //virtual QPaintEngine * paintEngine() const { return nullptr; }

      Bool_t MapQMouseEvent(QMouseEvent *e, Event_t* rev);

      TQRootFrame *fxRootwindow{nullptr};

      Int_t fiWinid{0};
      WId fQtWinId;

      Bool_t fbResizeOnPaint{kFALSE};

      double fQtScalingfactor{0};
};

#endif