TGo4MdiArea.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 TGO4MDIAREA_H
#define TGO4MDIAREA_H

#include <QMdiArea>

#include <QtCore/QEvent>

class TPad;
class TGo4ViewPanel;

class TGo4MdiArea : public QMdiArea {
   Q_OBJECT

   public:

      TGo4MdiArea(QWidget *parent = nullptr);
      virtual ~TGo4MdiArea();

      TGo4ViewPanel *GetActivePanel();

      TGo4ViewPanel *FindOtherPanel(TGo4ViewPanel *not_this);

      TPad *GetSelectedPad();
      void SetSelectedPad(TPad *pad);

      QMdiSubWindow* AddGo4SubWindow(QWidget *widget, Qt::WindowFlags flags = Qt::Widget);

      void ResponseOnPanelEvent(int funcid, TGo4ViewPanel *panel, TPad *pad);

      static TGo4MdiArea* Instance();

   signals:
      void panelSignal(TGo4ViewPanel *, TPad *, int);

   protected slots:
      void subWindowActivatedSlot(QMdiSubWindow *window);

   private:
      TGo4ViewPanel  *fxActivePanel{nullptr};
      TPad           *fxActivePad{nullptr};
      TPad           *fxSelectedPad{nullptr};

      static TGo4MdiArea* gInstance;
};

#endif