plottable-curve.h

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/***************************************************************************
**                                                                        **
**  QCustomPlot, an easy to use, modern plotting widget for Qt            **
**  Copyright (C) 2011, 2012, 2013, 2014 Emanuel Eichhammer               **
**                                                                        **
**  This program 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.                                   **
**                                                                        **
**  This program 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 for more details.                          **
**                                                                        **
**  You should have received a copy of the GNU General Public License     **
**  along with this program.  If not, see http://www.gnu.org/licenses/.   **
**                                                                        **
****************************************************************************
**           Author: Emanuel Eichhammer                                   **
**  Website/Contact: http://www.qcustomplot.com/                          **
**             Date: 07.04.14                                             **
**          Version: 1.2.1                                                **
****************************************************************************/
#ifndef QCP_PLOTTABLE_CURVE_H
#define QCP_PLOTTABLE_CURVE_H

#include "../global.h"
#include "../range.h"
#include "../plottable.h"
#include "../painter.h"

class QCPPainter;
class QCPAxis;

class QCP_LIB_DECL QCPCurveData
{
public:
  QCPCurveData();
  QCPCurveData(double t, double key, double value);
  double t, key, value;
};
Q_DECLARE_TYPEINFO(QCPCurveData, Q_MOVABLE_TYPE);

typedef QMap<double, QCPCurveData> QCPCurveDataMap;
typedef QMapIterator<double, QCPCurveData> QCPCurveDataMapIterator;
typedef QMutableMapIterator<double, QCPCurveData> QCPCurveDataMutableMapIterator;


class QCP_LIB_DECL QCPCurve : public QCPAbstractPlottable
{
  Q_OBJECT
  Q_PROPERTY(QCPScatterStyle scatterStyle READ scatterStyle WRITE setScatterStyle)
  Q_PROPERTY(LineStyle lineStyle READ lineStyle WRITE setLineStyle)
public:
  enum LineStyle { lsNone  
                   ,lsLine 
                 };
  explicit QCPCurve(QCPAxis *keyAxis, QCPAxis *valueAxis);
  virtual ~QCPCurve();
  
  // getters:
  QCPCurveDataMap *data() const { return mData; }
  QCPScatterStyle scatterStyle() const { return mScatterStyle; }
  LineStyle lineStyle() const { return mLineStyle; }
  
  // setters:
  void setData(QCPCurveDataMap *data, bool copy=false);
  void setData(const QVector<double> &t, const QVector<double> &key, const QVector<double> &value);
  void setData(const QVector<double> &key, const QVector<double> &value);
  void setScatterStyle(const QCPScatterStyle &style);
  void setLineStyle(LineStyle style);
  
  // non-property methods:
  void addData(const QCPCurveDataMap &dataMap);
  void addData(const QCPCurveData &data);
  void addData(double t, double key, double value);
  void addData(double key, double value);
  void addData(const QVector<double> &ts, const QVector<double> &keys, const QVector<double> &values);
  void removeDataBefore(double t);
  void removeDataAfter(double t);
  void removeData(double fromt, double tot);
  void removeData(double t);
  
  // reimplemented virtual methods:
  virtual void clearData();
  virtual double selectTest(const QPointF &pos, bool onlySelectable, QVariant *details=0) const;
  
protected:
  // property members:
  QCPCurveDataMap *mData;
  QCPScatterStyle mScatterStyle;
  LineStyle mLineStyle;
  
  // reimplemented virtual methods:
  virtual void draw(QCPPainter *painter);
  virtual void drawLegendIcon(QCPPainter *painter, const QRectF &rect) const;
  virtual QCPRange getKeyRange(bool &foundRange, SignDomain inSignDomain=sdBoth) const;
  virtual QCPRange getValueRange(bool &foundRange, SignDomain inSignDomain=sdBoth) const;
  
  // introduced virtual methods:
  virtual void drawScatterPlot(QCPPainter *painter, const QVector<QPointF> *pointData) const;
  
  // non-virtual methods:
  void getCurveData(QVector<QPointF> *lineData) const;
  double pointDistance(const QPointF &pixelPoint) const;
  QPointF outsideCoordsToPixels(double key, double value, int region, QRect axisRect) const;
  
  friend class QCustomPlot;
  friend class QCPLegend;
};

#endif // QCP_PLOTTABLE_CURVE_H