X-lanni
143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
/*****************************************************************
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*
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* This file is part of the GMAPPING project
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*
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* GMAPPING Copyright (c) 2004 Giorgio Grisetti,
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* Cyrill Stachniss, and Wolfram Burgard
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*
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* This software is licensed under the "Creative Commons
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* License (Attribution-NonCommercial-ShareAlike 2.0)"
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* and is copyrighted by Giorgio Grisetti, Cyrill Stachniss,
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* and Wolfram Burgard.
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*
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* Further information on this license can be found at:
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* http://creativecommons.org/licenses/by-nc-sa/2.0/
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*
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* GMAPPING is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE.
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*
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*****************************************************************/
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#include <iostream>
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#include "qgraphpainter.h"
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#include "moc_qgraphpainter.cpp"
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using namespace std;
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QGraphPainter::QGraphPainter( QWidget * parent, const char * name, WFlags f):
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QWidget(parent, name, f|WRepaintNoErase|WResizeNoErase){
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m_pixmap=new QPixmap(size());
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m_pixmap->fill(Qt::white);
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autoscale=false;
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m_useYReference = false;
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}
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void QGraphPainter::resizeEvent(QResizeEvent * sizeev){
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m_pixmap->resize(sizeev->size());
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}
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QGraphPainter::~QGraphPainter(){
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delete m_pixmap;
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}
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void QGraphPainter::clear(){
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values.clear();
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}
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void QGraphPainter::valueAdded(double v){
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values.push_back(v);
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}
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void QGraphPainter::valueAdded(double v, double _min, double _max){
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setRange(_min, _max);
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values.push_back(v);
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}
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void QGraphPainter::setYReference(double y){
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m_useYReference = true;
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reference=y;
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}
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void QGraphPainter::disableYReference(){
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m_useYReference = false;
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}
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void QGraphPainter::setTitle(const char* t){
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title=t;
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}
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void QGraphPainter::setRange(double _min, double _max){
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min=_min;
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max=_max;
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}
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void QGraphPainter::setAutoscale(bool a) {
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autoscale=a;
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}
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bool QGraphPainter::getAutoscale() const {
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return autoscale;
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}
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void QGraphPainter::timerEvent(QTimerEvent * te) {
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if (te->timerId()==timer)
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update();
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}
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void QGraphPainter::start(int period){
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timer=startTimer(period);
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}
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void QGraphPainter::paintEvent ( QPaintEvent * ){
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m_pixmap->fill(Qt::white);
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QPainter painter(m_pixmap);
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double _min=MAXDOUBLE, _max=-MAXDOUBLE;
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if (autoscale){
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for (unsigned int i=0; i<(unsigned int)width() && i<values.size(); i++){
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_min=_min<values[i]?_min:values[i];
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_max=_max>values[i]?_max:values[i];
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}
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} else {
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_min=min;
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_max=max;
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}
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painter.setPen(Qt::black);
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painter.drawRect(0, 0, width(), height());
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const int boundary=2;
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int xoffset=40;
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double scale=((double)height()-2*boundary-2)/(_max-_min);
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if (m_useYReference) {
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painter.setPen(Qt::green);
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painter.drawLine(xoffset+boundary/2, height()-(int)(scale*(reference-_min)),
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width()-boundary/2, height()-(int)(scale*(reference-_min)));
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}
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painter.setPen(Qt::blue);
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unsigned int start=0;
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if (values.size()>(unsigned int)width()-2*boundary-xoffset)
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start=values.size()-width()+2*boundary+xoffset;
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int oldv=0;
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if ((unsigned int)width()-2*boundary-xoffset>1 && values.size()>1)
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oldv = (int)(scale*(values[1+start]-_min)) + boundary;
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for (unsigned int i=1; i<(unsigned int)width()-2*boundary-xoffset && i<values.size(); i++){
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int v=(int)(scale*(values[i+start]-_min)) + boundary;
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painter.drawLine(i-1+boundary+xoffset, height()-boundary-oldv,
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xoffset+i+boundary, height()-boundary-v);
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oldv=v;
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}
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painter.setPen(Qt::black);
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painter.drawText( 3, height()/2, title);
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QFont sansFont( "Helvetica [Cronyx]", 6);
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painter.setFont(sansFont);
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bitBlt(this,0,0,m_pixmap,0,0,m_pixmap->width(),m_pixmap->height(),CopyROP);
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}
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