usImageDisplayWidget.cpp

/****************************************************************************
 *
 * This file is part of the ustk software.
 * Copyright (C) 2016 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ustk with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at ustk@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Authors:
 * Marc Pouliquen
 *
 *****************************************************************************/
 
#include <visp3/ustk_gui/usImageDisplayWidget.h>
 
#if (defined(USTK_HAVE_VTK_QT) || defined(USTK_HAVE_QT5))
 
usImageDisplayWidget::usImageDisplayWidget()
  : m_label(NULL), m_QImage(), m_pixmap(), m_useScanConversion(true), m_scanConverter(), m_postScan(), m_image()
{
  this->setMinimumSize(200, 200);
  m_label = new QLabel(this);
  m_label->setMinimumSize(200, 200);
  m_label->autoFillBackground();
}
 
usImageDisplayWidget::~usImageDisplayWidget()
{
  if (m_label)
    delete m_label;
}
 
void usImageDisplayWidget::updateFrame(const vpImage<unsigned char> img)
{
  m_useScanConversion = false;
  m_image = img;
  m_QImage = QImage(img.bitmap, img.getWidth(), img.getHeight(), img.getWidth(), QImage::Format_Indexed8);
  QImage I = m_QImage.convertToFormat(QImage::Format_RGB888);
  I = I.scaled(this->width(), this->height());
  m_pixmap = QPixmap::fromImage(I);
  m_label->setPixmap(m_pixmap);
  m_label->update();
}
 
void usImageDisplayWidget::updateFrame(const usImagePostScan2D<unsigned char> img)
{
  m_useScanConversion = false;
  m_image = img;
  m_QImage = QImage(img.bitmap, img.getWidth(), img.getHeight(), img.getWidth(), QImage::Format_Indexed8);
  QImage I = m_QImage.convertToFormat(QImage::Format_RGB888);
  I = I.scaled(this->width(), this->height());
  m_pixmap = QPixmap::fromImage(I);
  m_label->setPixmap(m_pixmap);
  m_label->update();
}
 
void usImageDisplayWidget::updateFrame(const usImagePreScan2D<unsigned char> img)
{
  if (m_useScanConversion) {
    m_scanConverter.convert(img, m_postScan);
    m_QImage = QImage(m_postScan.bitmap, m_postScan.getWidth(), m_postScan.getHeight(), m_postScan.getWidth(),
                      QImage::Format_Indexed8);
  } else {
    m_image = img;
    m_QImage = QImage(img.bitmap, img.getWidth(), img.getHeight(), img.getWidth(), QImage::Format_Indexed8);
  }
  QImage I = m_QImage.convertToFormat(QImage::Format_RGB888);
  I = I.scaled(this->width(), this->height());
  m_pixmap = QPixmap::fromImage(I);
  m_label->setPixmap(m_pixmap);
  m_label->update();
}
 
void usImageDisplayWidget::resizeEvent(QResizeEvent *event)
{
  m_label->resize(event->size());
  if (m_QImage.size() != QSize(0, 0)) { // excludes init case
    QImage I = m_QImage.convertToFormat(QImage::Format_RGB888);
    I = I.scaled(this->width(), this->height());
    m_pixmap = QPixmap::fromImage(I);
    m_label->setPixmap(m_pixmap);
    m_label->update();
  }
}
 
void usImageDisplayWidget::useScanConversion(bool enable) { m_useScanConversion = enable; }
 
#endif