psgraph.h

//
// C++ Interface: psgraph
//
// Description: 
//
//
// Author: Werner Stille <kpl@werner-stille.de>, (C) 2017
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef PSGRAPH_H
#define PSGRAPH_H

#include <QPointF>
#include <QSizeF>
#include "textitem.h"

class QGraphicsItem;
class QTextStream;
class ArcItem;
class ArrayItem;
class Array3DItem;
class ArrowItem;
class EllipseItem;
class FrameItem;
class FunItem;
class Fun3DItem;
class ImageItem;
class LegendItem;
class LineItem;
class ParFunItem;
class RectItem;
class ScaleBarItem;
class ScaledItem;
class SplineItem;
class TextItem;
class ThreeDItem;

class Q_DECL_EXPORT PSGraph
{
public:
  PSGraph(QTextStream* stream, const QList<QGraphicsItem*>& list,
          const QSizeF& size, bool landscape = false, bool eps = true);
  PSGraph(QTextStream* stream, const QSizeF& size,
          const QPointF& topRight = QPointF(),
          const QPointF& bottomLeft = QPointF(), bool landscape = false,
          bool eps = true);
  ~PSGraph();
  void drawArray(const double* x, const double* y, double fx, double fy, int n,
                 KplItem::FillStyle fillStyle = KplItem::NoBrush,
                 double xOff = 0, double yOff = 0, bool clip = true);
  void drawItems(const QList<QGraphicsItem*>& list);
  void drawText(const QString& text, double x, double y,
                TextItem::Alignment alignment = TextItem::AlignLeft);
  void finish();
  void setColorData(unsigned color);
  void setDir(double dir);
  double setRelSize(double m_relSize);
  static const double pts;

protected:
  void cm2r(double xcm, double ycm, double fx, double fy, double* xu,
            double* yu) const;
  void draw3D(ThreeDItem* item);
  void drawArc(ArcItem* item);
  void drawArray(ArrayItem* item);
  void drawArray3D(Array3DItem* item);
  void drawArrow(ArrowItem* item);
  void drawEllipse(EllipseItem* item);
  void drawErrorBars(const double* x, const double* y, const double* errors,
                     double fx, double fy, int n, double xOff = 0,
                     double yOff = 0, bool clip = true);
  void drawFrame(FrameItem* item);
  void drawFunc(FunItem* item);
  void drawFunc3D(Fun3DItem* item);
  void drawImage(ImageItem* item);
  void drawLegend(LegendItem* item);
  void drawLine(LineItem* item);
  void drawParFunc(ParFunItem* item);
  void drawRect(RectItem* item);
  void drawScaleBar(ScaleBarItem* item);
  void drawSpline(SplineItem* item);
  void drawText(TextItem* item);
  void labelX(const QString& text, int exp, bool xTop);
  void labelY(const QString& text, int exp, bool yRight);
  void prolog(bool landscape, bool eps,
              const QPointF& topRight = QPointF(),
              const QPointF& bottomLeft = QPointF());
  void psStr(const QString& text);
  void resetDashOffset();
  void scale(double xMin, double xMax, double yMin, double yMax,
             bool logX = false, bool logY = false);
  void setColorFrame(unsigned color);
  void setColorGrid(unsigned color);
  void setProperties(ScaledItem* item);
  void setSymbol(KplItem::Symbol symbol);
  void window(double x0, double width, double y0, double height);
  bool m_logX, m_logY;
  KplItem::Symbol m_symbol;
  double m_x0, m_y0, m_width, m_height, m_xMin, m_yMin, m_xMax, m_yMax,
    m_relSize;
  QTextStream* ts;
  QSizeF m_size;
};

#endif