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graphwidget.cpp
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graphwidget.cpp
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#include "graphwidget.h"
Path::Path(const QVector<double> &x, const QVector<double> &y)
{
Path();
int N = std::min(x.size(), y.size());
for (int i=0; i<=N; i++)
{
v_data.append(QPointF(x[i], y[i]));
}
}
Path::Path() : s_color(Qt::red), s_target(0)
{
}
GraphWidget::GraphWidget(QWidget *parent/*=NULL*/) : QWidget(parent), trans(0, 0), s_scale(defaultScale)
{
this->createTime= QDateTime::currentMSecsSinceEpoch()/1000;
t1 = new Path();
t1->addPoint(QPointF(0,0));
t1->setColor(QColor(255,7,00));
t2 = new Path();
t2->addPoint(QPointF(0,0));
t2->setColor(QColor(255,250,0));
t3 = new Path();
t3->addPoint(QPointF(0,0));
t3->setColor(QColor(0,209,14));
}
bool GraphWidget::addPath(Path* p)
{
if (!paths.contains(p))
{
paths.insert(p);
return true;
}
else
return false;
}
Path* GraphWidget::takePath(Path *p)
{
paths.remove(p);
return p;
}
void GraphWidget::clearPaths(bool del /* = no */)
{
if (del)
foreach (Path* p, paths)
delete p;
paths.clear();
}
QSize GraphWidget::minimumSizeHint() const
{
return QSize(50, 50);
}
QSize GraphWidget::sizeHint() const
{
return QSize(80, 80);
}
void GraphWidget::paintEvent(QPaintEvent *event)
{
int i=0;
QPainter p(this);
p.fillRect(this->rect(), QColor(78,78,127));
p.setRenderHint(QPainter::Antialiasing, false);
//draw t1 //could make some loop but mehh...
//draw horizontal scale
p.setPen(QColor(179,179,179));
for(int i=0; i<=300; i+=50){
p.drawLine( 1, yToCanvY(i), this->width(), yToCanvY(i) );
}
for(int i=0; i<=120; i+=10){
p.drawLine( qRound(xToCanvX(i)-trans.x()), 1, qRound(xToCanvX(i)-trans.x()), this->height() );
}
p.setPen(QColor(166,4,0));
p.drawLine( 1, yToCanvY(t1->target()), this->width(), yToCanvY(t1->target()) );
p.setPen(QColor(166,163,0));
p.drawLine( 1, yToCanvY(t2->target()), this->width(), yToCanvY(t2->target()) );
p.setPen(QColor(0,130,9));
p.drawLine( 1, yToCanvY(t3->target()), this->width(), yToCanvY(t3->target()) );
p.setRenderHint(QPainter::Antialiasing, true);
if (t1->size()>0){
for (i=1; i<t1->size(); i++)
{
p.setPen(QColor(qMin(255,(int)((double)255*((*t1)[i-1].y()/(t1->target()+1)))),0,255-qMin(255,(int)((double)255*((*t1)[i-1].y()/(t1->target()+1))))));
p.drawLine( xToCanvX((*t1)[i-1].x()), yToCanvY((*t1)[i-1].y()),
xToCanvX((*t1)[i].x()), yToCanvY((*t1)[i].y()) );
}
}
if (t2->size()>0){
for (i=1; i<t2->size(); i++)
{
p.drawLine( xToCanvX((*t2)[i-1].x()), yToCanvY((*t2)[i-1].y()),
xToCanvX((*t2)[i].x()), yToCanvY((*t2)[i].y()) );
}
}
if (t3->size()>0){
for (i=1; i<t3->size(); i++)
{
p.setPen(QColor(0,qMin(255,(int)((double)255*((*t3)[i].y()/(t3->target()+1)))),255-qMin(255,(int)((double)255*((*t3)[i].y()/(t3->target()+1))))));
p.drawLine( xToCanvX((*t3)[i-1].x()), yToCanvY((*t3)[i-1].y()),
xToCanvX((*t3)[i].x()), yToCanvY((*t3)[i].y()) );
}
}
if(xToCanvX((*t2)[i-1].x())>this->width()){
trans.setX( (((*t2)[i-1].x()*((double)width()/(double)120))-(width()))*-1 );
}
p.end();
}
void GraphWidget::mousePressEvent(QMouseEvent *event)
{
prevPos = event->pos();
}
void GraphWidget::mouseMoveEvent(QMouseEvent *event)
{
trans += event->pos() - prevPos;
prevPos = event->pos();
repaint();
}
void GraphWidget::addMeasurment(double temp1, double temp2, double temphb, qint64 time){
t1->addPoint(QPointF(time-this->createTime,temp1));
t2->addPoint(QPointF(time-this->createTime,temp2));
t3->addPoint(QPointF(time-this->createTime,temphb));
repaint();
}
void GraphWidget::setTargets(double temp1, double temp2, double temp3){
if(temp1>=0)
t1->setTarget(temp1);
if(temp2>=0)
t2->setTarget(temp2);
if(temp3>=0)
t3->setTarget(temp3);
repaint();
}