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/* Copyright (c) 2012 Patrick Ruoff
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#include "video_widget.h"
#include <QDebug>
using namespace cv;
using namespace std;
void VideoWidget::update_image(Mat frame, std::auto_ptr< vector<Vec2f> > points)
{
QMutexLocker((QMutex*)&mtx);
this->frame = frame;
this->points = points;
QImage qframe;
// convert to QImage
if (frame.channels() == 3)
qframe = QImage((const unsigned char*)(frame.data), frame.cols, frame.rows, frame.cols * 3, QImage::Format_RGB888).rgbSwapped();
else if (frame.channels() == 1)
qframe = QImage((const unsigned char*)(frame.data), frame.cols, frame.rows, frame.cols, QImage::Format_Indexed8).convertToFormat(QImage::Format_RGB888);
if (qframe.size() == size() || (qframe.width() <= width() && qframe.height() <= height()))
{
;;;
}
else
qframe = qframe.scaled(size(), Qt::IgnoreAspectRatio, Qt::FastTransformation);
QPainter painter(&qframe);
painter.setPen(Qt::blue);
painter.setBrush(Qt::blue);
if (points.get() != NULL) {
const int crosshair_radius = 10;
for (vector<Vec2f>::iterator iter = points->begin();
iter != points->end();
++iter)
{
int x = (*iter)[0];
int y = (*iter)[1];
painter.drawLine(QLine(x-crosshair_radius, y, x+crosshair_radius, y));
painter.drawLine(QLine(x, y-crosshair_radius, x, y+crosshair_radius));
}
}
pixmap = QPixmap::fromImage(qframe);
}
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