plotitem.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#pragma once
 
#include <memory>
#include <optional>
#include <QtGlobal>
#include <QQuickPaintedItem>
#include "qmlconfig.h"
 
class QwtPlot;
 
namespace LC::Util
{
    class UTIL_QML_API PlotItem : public QQuickPaintedItem
    {
        Q_OBJECT
 
        Q_PROPERTY (QList<QPointF> points READ GetPoints WRITE SetPoints NOTIFY pointsChanged)
 
        Q_PROPERTY (QVariant multipoints READ GetMultipoints WRITE SetMultipoints NOTIFY multipointsChanged)
 
        Q_PROPERTY (double minXValue READ GetMinXValue WRITE SetMinXValue NOTIFY minXValueChanged)
        Q_PROPERTY (double maxXValue READ GetMaxXValue WRITE SetMaxXValue NOTIFY maxXValueChanged)
        Q_PROPERTY (double minYValue READ GetMinYValue WRITE SetMinYValue NOTIFY minYValueChanged)
        Q_PROPERTY (double maxYValue READ GetMaxYValue WRITE SetMaxYValue NOTIFY maxYValueChanged)
 
        Q_PROPERTY (bool yGridEnabled READ GetYGridEnabled WRITE SetYGridEnabled NOTIFY yGridChanged)
        Q_PROPERTY (bool yMinorGridEnabled READ GetYMinorGridEnabled WRITE SetYMinorGridEnabled NOTIFY yMinorGridChanged)
 
        Q_PROPERTY (double alpha READ GetAlpha WRITE SetAlpha NOTIFY alphaChanged)
        Q_PROPERTY (QColor color READ GetColor WRITE SetColor NOTIFY colorChanged)
        Q_PROPERTY (bool leftAxisEnabled READ GetLeftAxisEnabled WRITE SetLeftAxisEnabled NOTIFY leftAxisEnabledChanged)
        Q_PROPERTY (bool bottomAxisEnabled READ GetBottomAxisEnabled WRITE SetBottomAxisEnabled NOTIFY bottomAxisEnabledChanged)
        Q_PROPERTY (QString leftAxisTitle READ GetLeftAxisTitle WRITE SetLeftAxisTitle NOTIFY leftAxisTitleChanged)
        Q_PROPERTY (QString bottomAxisTitle READ GetBottomAxisTitle WRITE SetBottomAxisTitle NOTIFY bottomAxisTitleChanged)
 
        Q_PROPERTY (QString plotTitle READ GetPlotTitle WRITE SetPlotTitle NOTIFY plotTitleChanged)
 
        Q_PROPERTY (QColor background READ GetBackground WRITE SetBackground NOTIFY backgroundChanged)
        Q_PROPERTY (QColor textColor READ GetTextColor WRITE SetTextColor NOTIFY textColorChanged)
        Q_PROPERTY (QColor gridLinesColor READ GetGridLinesColor WRITE SetGridLinesColor NOTIFY gridLinesColorChanged)
 
        Q_PROPERTY (int xExtent READ GetXExtent NOTIFY extentsChanged)
        Q_PROPERTY (int yExtent READ GetYExtent NOTIFY extentsChanged)
 
        QList<QPointF> Points_;
 
        struct PointsSet
        {
            QColor Color_;
            std::optional<QColor> BrushColor_;
            QList<QPointF> Points_;
        };
        QList<PointsSet> Multipoints_;
 
        double MinXValue_ = -1;
        double MaxXValue_ = -1;
        double MinYValue_ = -1;
        double MaxYValue_ = -1;
 
        bool YGridEnabled_ = false;
        bool YMinorGridEnabled_ = false;
 
        double Alpha_ = 0.3;
 
        QColor Color_;
 
        bool LeftAxisEnabled_ = false;
        bool BottomAxisEnabled_ = false;
 
        QString LeftAxisTitle_;
        QString BottomAxisTitle_;
 
        QString PlotTitle_;
 
        QColor BackgroundColor_;
        QColor TextColor_;
        QColor GridLinesColor_;
 
        int XExtent_ = 0;
        int YExtent_ = 0;
 
        std::shared_ptr<QwtPlot> Plot_;
    public:
        explicit PlotItem (QQuickItem* = nullptr);
 
        QList<QPointF> GetPoints () const;
        void SetPoints (const QList<QPointF>&);
 
        QVariant GetMultipoints () const;
        void SetMultipoints (const QVariant&);
 
        double GetMinXValue () const;
        void SetMinXValue (double);
        double GetMaxXValue () const;
        void SetMaxXValue (double);
        double GetMinYValue () const;
        void SetMinYValue (double);
        double GetMaxYValue () const;
        void SetMaxYValue (double);
 
        bool GetYGridEnabled () const;
        void SetYGridEnabled (bool);
        bool GetYMinorGridEnabled () const;
        void SetYMinorGridEnabled (bool);
 
        double GetAlpha () const;
        void SetAlpha (double);
 
        QColor GetColor () const;
        void SetColor (const QColor&);
 
        bool GetLeftAxisEnabled () const;
        void SetLeftAxisEnabled (bool);
        bool GetBottomAxisEnabled () const;
        void SetBottomAxisEnabled (bool);
 
        QString GetLeftAxisTitle () const;
        void SetLeftAxisTitle (const QString&);
        QString GetBottomAxisTitle () const;
        void SetBottomAxisTitle (const QString&);
 
        QString GetPlotTitle () const;
        void SetPlotTitle (const QString&);
 
        QColor GetBackground () const;
        void SetBackground (const QColor&);
        QColor GetTextColor () const;
        void SetTextColor (const QColor&);
        QColor GetGridLinesColor () const;
        void SetGridLinesColor (const QColor&);
 
        int GetXExtent () const;
        int GetYExtent () const;
 
        void paint (QPainter*) override;
    private:
        template<typename T, typename Notifier>
        void SetNewValue (T val, T& ourVal, Notifier&& notifier);
 
        int CalcXExtent (QwtPlot&) const;
        int CalcYExtent (QwtPlot&) const;
    signals:
        void pointsChanged ();
        void multipointsChanged ();
 
        void minXValueChanged ();
        void maxXValueChanged ();
        void minYValueChanged ();
        void maxYValueChanged ();
 
        void yGridChanged ();
        void yMinorGridChanged ();
 
        void alphaChanged ();
 
        void colorChanged ();
 
        void leftAxisEnabledChanged ();
        void bottomAxisEnabledChanged ();
 
        void leftAxisTitleChanged ();
        void bottomAxisTitleChanged ();
 
        void plotTitleChanged ();
 
        void backgroundChanged ();
        void textColorChanged ();
        void gridLinesColorChanged ();
 
        void extentsChanged ();
    };
}