spin_box.h

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/* Copyright (c) 2008-2022 the MRtrix3 contributors.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Covered Software is provided under this License on an "as is"
 * basis, without warranty of any kind, either expressed, implied, or
 * statutory, including, without limitation, warranties that the
 * Covered Software is free of defects, merchantable, fit for a
 * particular purpose or non-infringing.
 * See the Mozilla Public License v. 2.0 for more details.
 *
 * For more details, see http://www.mrtrix.org/.
 */
 
#ifndef __gui_spin_box_h__
#define __gui_spin_box_h__
 
#include "mrtrix.h"
#include "gui/opengl/gl.h"
 
namespace MR
{
  namespace GUI
  {
 
    class SpinBox : public QSpinBox
    { NOMEMALIGN
        Q_OBJECT
 
      public:
        using QSpinBox::QSpinBox;
 
      private:
        void timerEvent (QTimerEvent* event)
        {
          // Process all events, which may include a mouse release event
          // Only allow the timer to trigger additional value changes if the user
          //   has in fact held the mouse button, rather than the timer expiry
          //   simply appearing before the mouse release in the event queue
          qApp->processEvents();
          if (QApplication::mouseButtons() & Qt::LeftButton)
            QSpinBox::timerEvent (event);
        }
 
    };
 
 
  }
}
 
#endif