//=========================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//=========================================================================

#ifndef __smtk_extension_qtOverlay_h
#define _qtOverlay_h

#include "smtk/extension/qt/Exports.h"
#include <QPointer>
#include <QWidget>

namespace smtk
{
namespace extension
{
class SMTKQTEXT_EXPORT qtOverlay : public QWidget
{
  Q_OBJECT

public:
  qtOverlay(QWidget* parent = 0);
  void addOverlayWidget(QWidget* w);
  void setColor(const QColor& ocolor) { m_overlayColor = ocolor; }

protected:
  void paintEvent(QPaintEvent*) override;
  QPointer<QWidget> m_overlayWidget;
  QColor m_overlayColor;
};

class SMTKQTEXT_EXPORT qtOverlayFilter : public QObject
{
  Q_OBJECT

public:
  // onWidget is what the overlay will be covering
  qtOverlayFilter(QWidget* onWidget, QObject* parent = 0);
  ~qtOverlayFilter() override;
  qtOverlay* overlay() { return m_overlay; }
  void setActive(bool val);
  bool active() { return m_Active; }
  void addOverlayWidget(QWidget* w);

protected:
  bool eventFilter(QObject* obj, QEvent* ev) override;

  QPointer<qtOverlay> m_overlay;
  QPointer<QWidget> m_overlayOn;
  //        QPointer<QWidget> m_overlayWidget;
  bool m_Active;
};
}; // namespace extension
}; // namespace smtk

#endif // __smtk_extension_qtOverlay_
