GLWindow.h

/*
 * #%L
 * OME-QTWIDGETS C++ library for display of Bio-Formats pixel data and metadata.
 * %%
 * Copyright © 2014 - 2016 Open Microscopy Environment:
 *   - Massachusetts Institute of Technology
 *   - National Institutes of Health
 *   - University of Dundee
 *   - Board of Regents of the University of Wisconsin-Madison
 *   - Glencoe Software, Inc.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are
 * those of the authors and should not be interpreted as representing official
 * policies, either expressed or implied, of any organization.
 * #L%
 */

#ifndef OME_QTWIDGETS_GLWINDOW_H
#define OME_QTWIDGETS_GLWINDOW_H

#include <QtGui/QWindow>
#include <QtGui/QOpenGLFunctions>
#include <QtGui/QOpenGLDebugMessage>

QT_BEGIN_NAMESPACE
class QPainter;
class QOpenGLContext;
class QOpenGLPaintDevice;
class QOpenGLDebugLogger;
QT_END_NAMESPACE

namespace ome
{
  namespace qtwidgets
  {

    class GLWindow : public QWindow,
                     protected QOpenGLFunctions
    {
      Q_OBJECT

    public:
      explicit GLWindow(QWindow *parent = 0);

      ~GLWindow();

      virtual void
      render(QPainter *painter);

      virtual void
      render();

      virtual void
      initialize();

      virtual void
      resize();

      void
      setAnimating(bool animating);

    public slots:
      void
      renderLater();

      void
      renderNow();

      void
      logMessage(QOpenGLDebugMessage message);

    protected:
      bool
      event(QEvent *event);

      void
      exposeEvent(QExposeEvent *event);

      void
      resizeEvent(QResizeEvent *event);

      QOpenGLContext *
      context() const;

      void
      makeCurrent();

    private:
      bool update_pending;
      bool animating;
      QOpenGLContext *glcontext;
      QOpenGLPaintDevice *device;
      QOpenGLDebugLogger *logger;
    };

  }
}

#endif // OME_QTWIDGETS_GLWINDOW_H

/*
 * Local Variables:
 * mode:C++
 * End:
 */