ResInsight/ApplicationCode/UserInterface/RiuQwtCurvePointTracker.h

69 lines
2.8 KiB
C++

/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2017- Statoil ASA
//
// ResInsight is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
// for more details.
//
/////////////////////////////////////////////////////////////////////////////////
#pragma once
#include "qwt_plot_picker.h"
#include "qwt_plot.h"
#include <QPointer>
class QwtPlotMarker;
class QwtPlotCurve;
class IPlotCurveInfoTextProvider;
//--------------------------------------------------------------------------------------------------
/// Class to add mouse over-tracking of curve points with text marker
//--------------------------------------------------------------------------------------------------
class RiuQwtCurvePointTracker : public QwtPlotPicker
{
public:
explicit RiuQwtCurvePointTracker(QwtPlot* plot, bool isMainAxisHorizontal, IPlotCurveInfoTextProvider* curveInfoTextProvider = nullptr);
~RiuQwtCurvePointTracker() override;
protected:
bool eventFilter(QObject *, QEvent *) override;
void removeMarkerOnFocusLeave();
QwtText trackerText(const QPoint& pos) const override;
QPointF closestCurvePoint(const QPoint& cursorPosition,
QString* curveInfoText,
QString* valueAxisValueString,
QString* mainAxisValueString,
QwtPlot::Axis* relatedXAxis,
QwtPlot::Axis* relatedYAxis) const;
void updateClosestCurvePointMarker(const QPointF& closestPoint,
QwtPlot::Axis relatedXAxis,
QwtPlot::Axis relatedYAxis) const;
QPointer<QwtPlot> m_plot;
QwtPlotMarker* m_plotMarker;
bool m_isMainAxisHorizontal;
IPlotCurveInfoTextProvider* m_curveInfoTextProvider;
};
//--------------------------------------------------------------------------------------------------
/// Interface for retrieving curve info text
//--------------------------------------------------------------------------------------------------
class IPlotCurveInfoTextProvider
{
public:
virtual QString curveInfoText(QwtPlotCurve* curve) = 0;
};