TCanvasWidget.h

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// Author: Sergey Linev, GSI  13/01/2021
 
/*************************************************************************
 * Copyright (C) 1995-2021, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef TCanvasWidget_H
#define TCanvasWidget_H
 
#include <QWidget>
#include <QWebEngineView>
 
class TCanvas;
class TPad;
class TObject;
 
class TCanvasWidget : public QWidget {
 
   Q_OBJECT
 
public:
   TCanvasWidget(QWidget *parent = nullptr);
   virtual ~TCanvasWidget();
 
   /// returns canvas shown in the widget
   TCanvas *getCanvas() { return fCanvas; }
 
signals:
 
   void CanvasUpdated();
 
   void SelectedPadChanged(TPad*);
 
   void PadClicked(TPad*,int,int);
 
   void PadDblClicked(TPad*,int,int);
 
public slots:
 
   void activateEditor(TPad *pad = nullptr, TObject *obj = nullptr);
 
   void activateStatusLine();
 
   void setEditorVisible(bool flag = true);
 
protected:
 
   void resizeEvent(QResizeEvent *event) override;
 
   void SetPrivateCanvasFields(bool on_init);
 
   QWebEngineView *fView{nullptr};  ///< qt webwidget to show
 
   TCanvas *fCanvas{nullptr};
};
 
#endif