Curve::Curve(int device_port, int ele_max,QColor color, QWidget *parent)
: QwtPlot(parent),device_port(device_port),color(color),ele_max(ele_max)
{
reset();
setObjectName(tr("%1-%2 Real-Eletric").arg(device_port));
setTitle(tr("实时电流"));
setAxisTitle(QwtPlot::xBottom,"时间(s)");
setAxisTitle(QwtPlot::yLeft,tr("电流(A)"));
setAxisScale(QwtPlot::xBottom,x_min,x_max);
setAxisScale(QwtPlot::yLeft,0.0,50.0);
QwtPlotCanvas *canvas = new QwtPlotCanvas;
canvas->setPalette(QColor("#404040"));
canvas->setBorderRadius(10);
canvas->setFocusIndicator(QwtPlotCanvas::ItemFocusIndicator);
setCanvas(canvas);
insertLegend(new QwtLegend(),QwtPlot::RightLegend);
QwtPlotZoomer *zoomer = new QwtPlotZoomer(canvas);
zoomer->setRubberBandPen(QPen(QColor(Qt::red),1));
zoomer->setTrackerPen(QColor(Qt::red));
zoomer->setMousePattern(QwtEventPattern::MouseSelect2,
Qt::RightButton,Qt::ControlModifier);
zoomer->setMousePattern(QwtEventPattern::MouseSelect3,
Qt::RightButton);
QwtPlotPanner *panner = new QwtPlotPanner(canvas);
panner->setMouseButton(Qt::MidButton);
panner->setCursor(Qt::OpenHandCursor);
panner->setEnabled(true);
panner->setAxisEnabled(QwtPlot::yLeft,false);
connect(panner,SIGNAL(panned(int,int)),this,SLOT(get_coord(int,int)));
new QwtPlotMagnifier(this->canvas());
QwtPlotPicker *m_picker = new QwtPlotPicker( QwtPlot::xBottom, QwtPlot::yLeft,
QwtPlotPicker::HLineRubberBand , QwtPicker::AlwaysOn,
this->canvas() );
m_picker->setTrackerPen(QPen(Qt::red,1));
QFont font;
font.setPixelSize(15);
m_picker->setTrackerFont(font);
d_curve = new QwtPlotCurve(tr("支路%1").arg(device_port));
d_curve->setSymbol(new QwtSymbol(QwtSymbol::Ellipse,Qt::blue,QPen(Qt::blue),QSize(5,5)));
d_curve->setStyle(QwtPlotCurve::Lines);
d_curve->setCurveAttribute( QwtPlotCurve::Fitted );
d_curve->setPen(QPen(Qt::magenta));
d_curve->setRenderHint(QwtPlotItem::RenderAntialiased,true);
d_curve->attach(this);
d_curve_Max = new QwtPlotCurve(tr("最大值"));
d_curve_Max->setStyle(QwtPlotCurve::Lines);
d_curve_Max->setCurveAttribute(QwtPlotCurve::Fitted);
d_curve_Max->setPen(QPen(Qt::red));
d_curve_Max->setRenderHint(QwtPlotItem::RenderAntialiased,true);
d_curve_Max->attach(this);
}
