HorScale.H

// HorScale.H       $Revision: 1.4 $    $Date: 1998/05/13 15:59:13 $ 

#if !defined __HorScale_H

#define __HorScale_H


#include <zm/Scaler.H>
#include <zm/XDR.H>


const int horsStartBorder = 5;
const int horsScaleIndent = 3;
const int horsMarkHeight = 5;
const int horsFreqMarkHeight = 2;
const int horsMarkToLabel = 2;


/*************************************************************
 * Hor Scale as visual and mathematic object
 *************************************************************/

class HorScale : public XDR, public Scaler
{
protected:

  int   border;

  unsigned  markFreq;
  float labelStep;

  void  draw_ruler ();
  void  draw_labels ();

  // Compute max height of scale
  void  compute_height ();

public:

  HorScale (const XDO& xdo);
  virtual ~HorScale ();

  void  set_border (int w);

  virtual void  string (char* s, float value);

  virtual void  set_mark_freq (unsigned mark_freq);
  virtual void  set_label_step (float label_step);
  float     get_label_step () const  {return labelStep;};
  virtual void  set_range (float v_left, float v_right);
  virtual void  set_width (int w);
  virtual void  set_height (int h);
  virtual void  set_xy (int x, int y);
  virtual void  set_font (const char* szFontName);

  virtual void  draw_grid (XDR& rect);

  virtual void  expose ();
};


#endif  // HorScale.H