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#1321 Finalized plot marker refactoring

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This commit is contained in:
Jacob Støren
2017-03-27 10:38:26 +02:00
parent ef8a98d4e1
commit ba1dfee4e6
5 changed files with 269 additions and 205 deletions
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205
ApplicationCode/UserInterface/RiuSummaryQwtPlot.cpp
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@@ -26,21 +26,19 @@
#include "RiuMainPlotWindow.h"
#include "RiuQwtScalePicker.h"
#include "RiuQwtCurvePointTracker.h"
#include "cafSelectionManager.h"
#include "qwt_date_scale_draw.h"
#include "qwt_date_scale_engine.h"
#include "qwt_date_scale_draw.h"
#include "qwt_legend.h"
#include "qwt_plot_curve.h"
#include "qwt_plot_grid.h"
#include "qwt_plot_layout.h"
#include "qwt_plot_marker.h"
#include "qwt_plot_panner.h"
#include "qwt_plot_picker.h"
#include "qwt_plot_zoomer.h"
#include "qwt_scale_engine.h"
#include "qwt_symbol.h"
#include <QEvent>
#include <QMenu>
@@ -48,199 +46,6 @@
#include <float.h>
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
class RiuQwtPlotPicker : public QwtPlotPicker
{
public:
explicit RiuQwtPlotPicker(QwtPlot* plot, bool isMainAxisHorizontal)
: QwtPlotPicker(plot->canvas()), m_plot(plot), m_isMainAxisHorizontal(isMainAxisHorizontal)
{
this->setTrackerMode(QwtPicker::AlwaysOn);
m_plotMarker = new QwtPlotMarker;
// QwtPlotMarker takes ownership of the symbol, it is deleted in destructor of QwtPlotMarker
QwtSymbol* mySymbol = new QwtSymbol(QwtSymbol::Ellipse, Qt::NoBrush, QPen(Qt::black, 2.0), QSize(12, 12));
m_plotMarker->setSymbol(mySymbol);
}
~RiuQwtPlotPicker()
{
m_plotMarker->detach();
delete m_plotMarker;
}
void removeMarker()
{
if (m_plotMarker->plot())
{
m_plotMarker->detach();
m_plot->replot();
}
}
protected:
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
virtual QwtText trackerText(const QPoint& pos) const override
{
QwtText txt;
if (m_plot)
{
QwtPlot::Axis relatedYAxis = QwtPlot::yLeft;
QwtPlot::Axis relatedXAxis = QwtPlot::xBottom;
QString mainAxisValueString;
QString valueAxisValueString;
QPointF closestPoint = closestCurvePoint(pos, &valueAxisValueString, &mainAxisValueString, &relatedXAxis, &relatedYAxis);
if (!closestPoint.isNull())
{
QString str = valueAxisValueString;
if (!mainAxisValueString.isEmpty())
{
str += QString(" (%1)").arg(mainAxisValueString);
}
txt.setText(str);
}
updateClosestCurvePointMarker(closestPoint, relatedXAxis, relatedYAxis);
}
return txt;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QPointF closestCurvePoint(const QPoint& cursorPosition, QString* valueAxisValueString, QString* mainAxisValueString, QwtPlot::Axis* relatedXAxis, QwtPlot::Axis* relatedYAxis) const
{
QPointF samplePoint;
QwtPlotCurve* closestCurve = nullptr;
double distMin = DBL_MAX;
int closestPointSampleIndex = -1;
const QwtPlotItemList& itmList = m_plot->itemList();
for (QwtPlotItemIterator it = itmList.begin(); it != itmList.end(); it++)
{
if ((*it)->rtti() == QwtPlotItem::Rtti_PlotCurve)
{
QwtPlotCurve* candidateCurve = static_cast<QwtPlotCurve*>(*it);
double dist = DBL_MAX;
int candidateSampleIndex = candidateCurve->closestPoint(cursorPosition, &dist);
if (dist < distMin)
{
closestCurve = candidateCurve;
distMin = dist;
closestPointSampleIndex = candidateSampleIndex;
}
}
}
if (closestCurve && distMin < 50)
{
samplePoint = closestCurve->sample(closestPointSampleIndex);
if (relatedXAxis) *relatedXAxis = static_cast<QwtPlot::Axis>( closestCurve->xAxis());
if (relatedYAxis) *relatedYAxis = static_cast<QwtPlot::Axis>( closestCurve->yAxis());
}
if (mainAxisValueString)
{
const QwtScaleDraw* mainAxisScaleDraw = m_isMainAxisHorizontal ? m_plot->axisScaleDraw(*relatedXAxis): m_plot->axisScaleDraw(*relatedYAxis);
auto dateScaleDraw = dynamic_cast<const QwtDateScaleDraw*>(mainAxisScaleDraw) ;
qreal mainAxisSampleVal = 0.0;
if (m_isMainAxisHorizontal)
mainAxisSampleVal = samplePoint.x();
else
mainAxisSampleVal = samplePoint.y();
if (dateScaleDraw)
{
QDateTime date = dateScaleDraw->toDateTime(mainAxisSampleVal);
*mainAxisValueString = date.toString("hh:mm dd.MMMM.yyyy");
}
else if (mainAxisScaleDraw)
{
*mainAxisValueString = mainAxisScaleDraw->label(mainAxisSampleVal).text();
}
}
if (valueAxisValueString && closestCurve)
{
const QwtScaleDraw* valueAxisScaleDraw = m_isMainAxisHorizontal ? m_plot->axisScaleDraw(*relatedYAxis): m_plot->axisScaleDraw(*relatedXAxis);
qreal valueAxisSampleVal = 0.0;
if (m_isMainAxisHorizontal)
valueAxisSampleVal = samplePoint.x();
else
valueAxisSampleVal = samplePoint.y();
if (valueAxisScaleDraw)
{
*valueAxisValueString = valueAxisScaleDraw->label(valueAxisSampleVal).text();
}
}
return samplePoint;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void updateClosestCurvePointMarker(const QPointF& closestPoint, QwtPlot::Axis relatedXAxis, QwtPlot::Axis relatedYAxis) const
{
bool replotRequired = false;
if (!closestPoint.isNull())
{
if (!m_plotMarker->plot())
{
m_plotMarker->attach(m_plot);
replotRequired = true;
}
if (m_plotMarker->value() != closestPoint)
{
m_plotMarker->setValue(closestPoint.x(), closestPoint.y());
// Set the axes that the marker realtes to, to make the positioning correct
m_plotMarker->setAxes(relatedXAxis, relatedYAxis);
// TODO : Should use a color or other visual indicator to show what axis the curve relates to
replotRequired = true;
}
}
else
{
if (m_plotMarker->plot())
{
m_plotMarker->detach();
replotRequired = true;
}
}
if (replotRequired) m_plot->replot();
}
QPointer<QwtPlot> m_plot;
QwtPlotMarker* m_plotMarker;
bool m_isMainAxisHorizontal;
};
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
@@ -279,7 +84,7 @@ RiuSummaryQwtPlot::RiuSummaryQwtPlot(RimSummaryPlot* plotDefinition, QWidget* pa
connect(scalePicker, SIGNAL(clicked(int, double)), this, SLOT(onAxisClicked(int, double)));
// Create a plot picker to display values next to mouse cursor
m_plotPicker = new RiuQwtPlotPicker(this, true);
m_curvePointTracker = new RiuQwtCurvePointTracker(this, true);
}
@@ -486,7 +291,7 @@ bool RiuSummaryQwtPlot::eventFilter(QObject* watched, QEvent* event)
//--------------------------------------------------------------------------------------------------
void RiuSummaryQwtPlot::leaveEvent(QEvent *)
{
m_plotPicker->removeMarker();
m_curvePointTracker->removeMarkerOnFocusLeave();
}
//--------------------------------------------------------------------------------------------------
@@ -530,7 +335,7 @@ void RiuSummaryQwtPlot::onZoomedSlot()
{
QwtInterval left, right, time;
currentVisibleWindow(&left, &right, &time);
this->setZoomWindow(left, right, time);
m_plotDefinition->updateZoomWindowFromQwt();