/****************************************************************************** * Copyright (C) 2009 by Oliver Bock * * oliver.bock[AT]aei.mpg.de * * * * This file is part of PulsatingScience. * * * * PulsatingScience is free software: you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published * * by the Free Software Foundation, version 3 of the License. * * * * PulsatingScience is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with PulsatingScience. If not, see . * * * ******************************************************************************/ #include "pulsescopewidget.h" PulseScopeWidget::PulseScopeWidget(QWidget *parent) : QGraphicsView(parent), m_scene(), m_data(), m_marker() { m_scopeSizeH = 360; m_scopeSizeV = 0; setViewport(new QGLWidget(QGLFormat(QGL::AlphaChannel | QGL::SampleBuffers))); setScene(&m_scene); m_data.fill(0.0f, m_scopeSizeH); m_marker.setPen(QPen(Qt::red)); // TODO: proof of concept only! for(int i = 0; i < m_scopeSizeH; ++i) { m_data[i] = pow(i-180,2); } drawCurve(m_data); } PulseScopeWidget::~PulseScopeWidget() { } void PulseScopeWidget::resizeEvent(QResizeEvent *event) { Q_UNUSED(event); fitInView(m_scene.itemsBoundingRect(), Qt::IgnoreAspectRatio); } void PulseScopeWidget::drawCurve(const QVector& vector) { m_data = vector; // TODO: proof of concept only! QVector checkMax(m_data); qSort(checkMax.begin(), checkMax.end()); m_scopeSizeV = (int)ceil(checkMax.last()) * 2; m_scene.addLine(0.0f, 0.0f, 0.0f, m_scopeSizeV, QPen(Qt::white)); m_scene.addLine(0.0f, m_scopeSizeV / 2, m_scopeSizeH, m_scopeSizeV / 2, QPen(Qt::white)); QPainterPath pulsePath(QPoint(0.0f, m_scopeSizeV / 2)); for(int i = 0; i < m_scopeSizeH; ++i) { pulsePath.lineTo(i,m_data[i]); } m_scene.addPath(pulsePath, QPen(Qt::green)); if(m_marker.scene() == 0) { m_marker.setLine(0.0, 0.0, 0.0, m_scopeSizeV); m_scene.addItem(&m_marker); } fitInView(m_scene.itemsBoundingRect(), Qt::IgnoreAspectRatio); } void PulseScopeWidget::markerStep(float stepSize) { if(m_marker.line().x1() < m_scopeSizeH) { QLineF line = m_marker.line(); line.translate(stepSize, 0); m_marker.setLine(line); } else { markerReset(); } } void PulseScopeWidget::markerReset() { m_marker.setLine(0.0, 0.0, 0.0, m_scopeSizeV); }