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SpeedPlotView: Replace QQueue by boost::circular_buffer, reduce number of points to draw, increase legend background size

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This commit is contained in:
Anton Lashkov 2015-12-05 15:07:16 +04:00
parent cd2496215e
commit dd9728334a
2 changed files with 45 additions and 21 deletions
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57
src/gui/properties/speedplotview.cpp
View file

@ -34,6 +34,7 @@
SpeedPlotView::SpeedPlotView(QWidget *parent)
: QGraphicsView(parent)
, m_xData(HOUR6_SEC)
, m_viewablePointsCount(MIN5_SEC)
, m_maxCapacity(HOUR6_SEC)
{
@ -66,6 +67,17 @@ SpeedPlotView::SpeedPlotView(QWidget *parent)
greenPen.setStyle(Qt::DotLine);
m_properties[TRACKER_UP] = GraphProperties(tr("Tracker Upload"), bluePen);
m_properties[TRACKER_DOWN] = GraphProperties(tr("Tracker Download"), greenPen);
m_yData[UP] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[DOWN] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[PAYLOAD_UP] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[PAYLOAD_DOWN] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[OVERHEAD_UP] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[OVERHEAD_DOWN] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[DHT_UP] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[DHT_DOWN] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[TRACKER_UP] = boost::circular_buffer<double>(HOUR6_SEC);
m_yData[TRACKER_DOWN] = boost::circular_buffer<double>(HOUR6_SEC);
}
void SpeedPlotView::setGraphEnable(GraphID id, bool enable)
@ -75,18 +87,12 @@ void SpeedPlotView::setGraphEnable(GraphID id, bool enable)
void SpeedPlotView::pushXPoint(double x)
{
while (m_xData.size() >= m_maxCapacity)
m_xData.pop_front();
m_xData.append(x);
m_xData.push_back(x);
}
void SpeedPlotView::pushYPoint(GraphID id, double y)
{
while (m_yData[id].size() >= m_maxCapacity)
m_yData[id].pop_front();
m_yData[id].append(y);
m_yData[id].push_back(y);
}
void SpeedPlotView::setViewableLastPoints(TimePeriod period)
@ -117,16 +123,16 @@ void SpeedPlotView::replot()
double SpeedPlotView::maxYValue()
{
double maxYValue = 0;
for (QMap<GraphID, QQueue<double> >::const_iterator it = m_yData.begin(); it != m_yData.end(); ++it) {
for (QMap<GraphID, boost::circular_buffer<double> >::const_iterator it = m_yData.begin(); it != m_yData.end(); ++it) {
if (!m_properties[it.key()].m_enable)
continue;
QQueue<double> &queue = m_yData[it.key()];
const boost::circular_buffer<double> &queue = it.value();
for (int i = queue.size() - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j) {
if (queue.at(i) > maxYValue)
maxYValue = queue.at(i);
if (queue[i] > maxYValue)
maxYValue = queue[i];
}
}
@ -197,17 +203,32 @@ void SpeedPlotView::paintEvent(QPaintEvent *)
double y_multiplier = (max_y == 0.0) ? 0.0 : rect.height() / max_y;
double x_tick_size = double(rect.width()) / m_viewablePointsCount;
for (QMap<GraphID, QQueue<double> >::const_iterator it = m_yData.begin(); it != m_yData.end(); ++it) {
for (QMap<GraphID, boost::circular_buffer<double> >::const_iterator it = m_yData.begin(); it != m_yData.end(); ++it) {
if (!m_properties[it.key()].m_enable)
continue;
QQueue<double> &queue = m_yData[it.key()];
QVector<QPointF> points;
const boost::circular_buffer<double> &queue = it.value();
QVector<QPoint> points;
for (int i = queue.size() - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j) {
points.push_back(QPointF(rect.right() - j * x_tick_size,
rect.bottom() - queue.at(i) * y_multiplier));
int new_x = rect.right() - j * x_tick_size;
int new_y = rect.bottom() - queue[i] * y_multiplier;
if (points.size() > 1) {
QPoint &last_point = points[points.size()-1];
QPoint &prelast_point = points[points.size()-2];
if (last_point.x() == new_x && prelast_point.x() == new_x)
{
last_point.setY(qMax(last_point.y(), new_y));
prelast_point.setY(qMin(prelast_point.y(), new_y));
continue;
}
}
points.push_back(QPoint(new_x, new_y));
}
painter.setPen(m_properties[it.key()].m_pen);
@ -229,7 +250,7 @@ void SpeedPlotView::paintEvent(QPaintEvent *)
legend_height += 1.5 * font_metrics.height();
}
QRectF legend_background_rect(legend_top_left, QSizeF(legend_width, legend_height));
QRectF legend_background_rect(QPoint(legend_top_left.x()-4, legend_top_left.y()-4), QSizeF(legend_width+8, legend_height+8));
QColor legendBackgroundColor = QWidget::palette().color(QWidget::backgroundRole());
legendBackgroundColor.setAlpha(128); // 50% transparent
painter.fillRect(legend_background_rect, legendBackgroundColor);

9
src/gui/properties/speedplotview.h
View file

@ -29,9 +29,12 @@
#ifndef SPEEDPLOTVIEW_H
#define SPEEDPLOTVIEW_H
#ifndef Q_MOC_RUN
#include <boost/circular_buffer.hpp>
#endif
#include <QGraphicsView>
#include <QMap>
#include <QQueue>
class QPen;
class SpeedPlotView : public QGraphicsView
@ -94,8 +97,8 @@ private:
bool m_enable;
};
QQueue<double> m_xData;
QMap<GraphID, QQueue<double> > m_yData;
boost::circular_buffer<double> m_xData;
QMap<GraphID, boost::circular_buffer<double> > m_yData;
QMap<GraphID, GraphProperties> m_properties;
PeriodInSeconds m_viewablePointsCount;