487 lines
11 KiB
C++
487 lines
11 KiB
C++
#include "Chart.h"
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int Chart::ChannelIndex = 0;
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Chart::Chart(QChart *chart, QWidget *parent)
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{
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chart->legend()->setAlignment(Qt::AlignRight);
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chart->legend()->setMarkerShape(QLegend::MarkerShapeDefault);
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chart->setTheme(QChart::ChartThemeQt);
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//chart->setPlotArea(this->geometry());
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QValueAxis *axisX = new QValueAxis();
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axisX->setRange(-5, 5);
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axisX->setTickCount(11);
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axisX->setLabelFormat("%.2f");
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chart->addAxis(axisX, Qt::AlignBottom);
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QValueAxis *axisY = new QValueAxis();
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axisY->setRange(-3, 3);
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axisY->setTickCount(7);
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//axisY->setLabelFormat("%.2f");
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chart->addAxis(axisY, Qt::AlignLeft);
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setParent(parent);
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setChart(chart);
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setScroll(true);
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//默认不使用，因为使用显卡加速图形会闪
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setUseOpenGL(false);
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if(!updateTimer)
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{
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updateTimer = new QTimer(this);
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connect(updateTimer,SIGNAL(timeout()),
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this,SLOT(timeout()));
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updateTimer->start(10);//10hz刷新
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}
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}
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Chart::Chart(QWidget *parent)
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{
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setParent(parent);
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chart()->legend()->setAlignment(Qt::AlignRight);
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chart()->legend()->setMarkerShape(QLegend::MarkerShapeDefault);
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chart()->setTheme(QChart::ChartThemeQt);
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//chart()->setPlotArea(this->geometry());
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QValueAxis *axisX = new QValueAxis();
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//axisX->setRange(-5, 5);
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//axisX->setTickCount(11);
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//axisX->setLabelFormat("%.2f");
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chart()->addAxis(axisX, Qt::AlignBottom);
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QValueAxis *axisY = new QValueAxis();
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axisY->setRange(-3, 3);
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axisY->setTickCount(7);
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axisY->setLabelFormat("%.2f");
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chart()->addAxis(axisY, Qt::AlignLeft);
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setScroll(true);
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//默认不使用，因为使用显卡加速图形会闪
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setUseOpenGL(false);
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if(!updateTimer)
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{
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updateTimer = new QTimer(this);
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connect(updateTimer,SIGNAL(timeout()),
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this,SLOT(timeout()));
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updateTimer->start(10);//20hz刷新
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}
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}
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Chart::~Chart()
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{
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if(updateTimer)
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{
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if(updateTimer->isActive())
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{
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updateTimer->stop();
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}
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delete updateTimer;
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}
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}
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void Chart::leaveEvent(QEvent *e)
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{
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isPress = false;
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setCursor(Qt::ArrowCursor);
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QChartView::leaveEvent(e);
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}
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void Chart::hideEvent(QHideEvent *e)
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{
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qDebug() << e;
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}
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void Chart::showEvent(QShowEvent *e)
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{
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qDebug() << e;
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}
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void Chart::mouseMoveEvent(QMouseEvent *e)
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{
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const QPoint curPos = e->pos();
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if (isPress)
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{
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QPoint offset = curPos - lastPoint;
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lastPoint = curPos;
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chart()->scroll(-offset.x(), offset.y());
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}
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QChartView::mouseMoveEvent(e);
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}
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void Chart::mouseReleaseEvent(QMouseEvent *e)
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{
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isPress = false;
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setCursor(Qt::ArrowCursor);
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QChartView::mouseReleaseEvent(e);
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}
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void Chart::mousePressEvent(QMouseEvent *e)
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{
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if (e->button() == Qt::RightButton)
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{
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lastPoint = e->pos();
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isPress = true;
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setCursor(Qt::ClosedHandCursor);
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}
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QChartView::mousePressEvent(e);
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}
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void Chart::mouseDoubleClickEvent(QMouseEvent *e)
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{
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qDebug() << "Chart double clicked" << e;
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//双击生成一个标
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QChartView::mouseDoubleClickEvent(e);
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}
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void Chart::wheelEvent(QWheelEvent *e)
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{
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//以鼠标坐标为中心进行缩放
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QPointF curVal = chart()->mapToValue(QPointF(e->pos()));
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//缩放比例
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const double factor = 1.5;
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switch(e->modifiers())
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{
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case Qt::ControlModifier://垂直缩放
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{
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QValueAxis *axis = dynamic_cast<QValueAxis*>(chart()->axisY());
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const double Min = axis->min();
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const double Max = axis->max();
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const double Central = curVal.y();
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double bottomOffset;
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double topOffset;
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if (e->delta() > 0)
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{//放大
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bottomOffset = 1.0 / factor * (Central - Min);
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topOffset = 1.0 / factor * (Max - Central);
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}
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else
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{//缩小
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bottomOffset = 1.0 * factor * (Central - Min);
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topOffset = 1.0 * factor * (Max - Central);
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}
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chart()->axisY()->setRange(Central - bottomOffset, Central + topOffset);
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}break;
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case Qt::ShiftModifier://水平缩放
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{
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QValueAxis *axis = dynamic_cast<QValueAxis*>(chart()->axisX());
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const double Min = axis->min();
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const double Max = axis->max();
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const double Central = curVal.x();
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double bottomOffset;
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double topOffset;
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if (e->delta() > 0)
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{//放大
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bottomOffset = 1.0 / factor * (Central - Min);
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topOffset = 1.0 / factor * (Max - Central);
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}
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else
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{//缩小
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bottomOffset = 1.0 * factor * (Central - Min);
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topOffset = 1.0 * factor * (Max - Central);
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}
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chart()->axisX()->setRange(Central - bottomOffset, Central + topOffset);
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}break;
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default://水平移动
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{
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QValueAxis *axis = dynamic_cast<QValueAxis*>(chart()->axisX());
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qreal dwidth = chart()->plotArea().width()/(axis->tickCount()*2);
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if(e->delta() > 0)
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{
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chart()->scroll(-dwidth,0);
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}
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else if(e->delta() < 0)
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{
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chart()->scroll(dwidth,0);
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}
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}
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}
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QChartView::wheelEvent(e);
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}
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void Chart::resizeEvent(QResizeEvent *e)
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{
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chart()->setPos(0,0);
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chart()->setGeometry(this->geometry());
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//chart()->setPlotArea(this->geometry());
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}
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void Chart::timeout(void)//10Hz
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{
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//timeseries += 0.1;
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//chartUpdate();
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}
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void Chart::chartUpdate(void)
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{
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//读取新数据，如果没有，那就保持
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//当到达最大时（0.95），开始滚动
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if(isScroll() == true)
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{
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QValueAxis *axis = dynamic_cast<QValueAxis*>(chart()->axisX());
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const double Min = axis->min();
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const double Max = axis->max();
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if(timeseries > (Min + (Max - Min) * 0.95))
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{
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chart()->axisX()->setRange(Min + 0.01,Max + 0.01);
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}
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}
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}
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void Chart::setUseOpenGL(const bool &value)
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{
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isOpenGL= value;
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}
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bool Chart::addSeries(QString name = tr("new"))
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{
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//查找有没有这个名字的序列
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bool isContain = false;
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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if(serie->name() == name)
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{
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isContain = true;
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}
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}
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if(isContain == false)
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{
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QLineSeries *s = new QLineSeries();
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s->setColor(ColorMap::Color[ChannelIndex]);
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s->setName(name);
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//s->append(timeseries,0);
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s->setUseOpenGL(isOpenGL);
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chart()->addSeries(s);
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chart()->setAxisX(chart()->axisX(),s);
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chart()->setAxisY(chart()->axisY(),s);
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ChannelIndex ++;
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if(ChannelIndex >= 16)
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{
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ChannelIndex = 0;
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}
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}
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else
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{
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qInfo() << "this chart has contain a serie name by :" << name;
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}
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return isContain;
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}
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bool Chart::addSeries(QString name = tr("new"), int index = 0)
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{
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if(index >= 16)
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{
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int a = index/16;
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ChannelIndex = index - a*16;
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}
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//查找有没有这个名字的序列
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bool isContain = false;
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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if(serie->name() == name)
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{
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isContain = true;
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}
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}
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if(isContain == false)
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{
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QLineSeries *s = new QLineSeries();
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s->setColor(ColorMap::Color[ChannelIndex]);
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s->setName(name);
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//s->append(timeseries,0);
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s->setUseOpenGL(isOpenGL);
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chart()->addSeries(s);
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chart()->setAxisX(chart()->axisX(),s);
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chart()->setAxisY(chart()->axisY(),s);
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ChannelIndex ++;
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if(ChannelIndex >= 16)
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{
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ChannelIndex = 0;
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}
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}
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else
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{
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qInfo() << "this chart has contain a serie name by :" << name;
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}
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return isContain;
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}
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bool Chart::addSeries(QString name = tr("new"),QColor color = QColor("#FFFFFF"))
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{
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//查找有没有这个名字的序列
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bool isContain = false;
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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if(serie->name() == name)
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{
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isContain = true;
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}
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}
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if(isContain == false)
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{
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QLineSeries *s = new QLineSeries();
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s->setColor(color);
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s->setName(name);
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//s->append(timeseries,0);
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s->setUseOpenGL(isOpenGL);
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chart()->addSeries(s);
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chart()->setAxisX(chart()->axisX(),s);
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chart()->setAxisY(chart()->axisY(),s);
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ChannelIndex ++;
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if(ChannelIndex >= 16)
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{
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ChannelIndex = 0;
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}
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}
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else
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{
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qInfo() << "this chart has contain a serie name by :" << name;
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}
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return isContain;
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}
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void Chart::setSerieData(QString name,QVariant data)
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{
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timeseries++;
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//qDebug() << timeseries << timeseries;
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//出新了比以前更大或者更小的值，那么就设置一下量程
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{
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QValueAxis *axis = dynamic_cast<QValueAxis*>(chart()->axisY());
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if(data.toDouble() > axis->max())
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{
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//设置最大值
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const double Min = axis->min();
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double FreeArea = (data.toDouble() - Min) * 0.1;
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chart()->axisY()->setRange(Min, data.toDouble() + FreeArea);
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}
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else if(data.toDouble() < axis->min())
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{
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//设置最小值
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const double Max = axis->max();
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double FreeArea = (Max - data.toDouble()) * 0.1;
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chart()->axisY()->setRange(data.toDouble() - FreeArea, Max);
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}
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}
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//查找有没有这个名字的序列
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bool isContain = false;
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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QLineSeries *s = qobject_cast<QLineSeries *>(serie);
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if(s->name() == name)
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{
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s->append(timeseries,data.toDouble());
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isContain = true;
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}
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}
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if(isContain == false)
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{
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addSeries(name,ChannelIndex);
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ChannelIndex ++;
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if(ChannelIndex >= 16)
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{
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ChannelIndex = 0;
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}
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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QLineSeries *s = qobject_cast<QLineSeries *>(serie);
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if(s->name() == name)
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{
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s->append(timeseries,data.toDouble());
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}
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}
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}
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chartUpdate();
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}
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void Chart::removeSerie(QString name)
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{
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//找到，删除
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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QLineSeries *s = qobject_cast<QLineSeries *>(serie);
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if(s)
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{
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if(s->name() == name)
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{
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chart()->removeSeries(s);
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s->clear();
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s->deleteLater();
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delete s;
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}
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}
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}
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}
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void Chart::removeAllSerie(void)
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{
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//找到，删除
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QList<QAbstractSeries *> slist = chart()->series();
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for(QAbstractSeries *serie:slist)
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{
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QLineSeries *s = qobject_cast<QLineSeries *>(serie);
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if(s)
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{
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chart()->removeSeries(s);
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s->clear();
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s->deleteLater();
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delete s;
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}
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}
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}
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