//----------------------------------------------------------------------------
// Class definition include
//----------------------------------------------------------------------------
#include "pPlotterScaleY.h"

// ----------------------------------------------------------------------------
// WX headers inclusion.
// For compilers that support precompilation, includes <wx/wx.h>.
// ----------------------------------------------------------------------------

#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif

//----------------------------------------------------------------------------
// Class implementation
//----------------------------------------------------------------------------

#define mpLN10 2.3025850929940456840179914546844

IMPLEMENT_CLASS(pPlotterScaleY, pPlotterLayer)
//----------------------------------------------------------------------------
// Methods
//----------------------------------------------------------------------------
pPlotterScaleY::pPlotterScaleY(wxString aName,int flags) {

	SetName(aName);/*
	SetFont(*wxSMALL_FONT);
	SetPen(*wxGREY_PEN);*/
	wxFont ff( *wxSMALL_FONT);
	wxPen pp( *wxGREY_PEN);
	SetPen( pp );
	SetFont( ff );
}

void pPlotterScaleY::Plot(wxDC& dc, mpWindow& w) 
{

	int divisions=20;
	
	dc.SetPen( m_pen);
	dc.SetFont( m_font);
	
	//data
	float min= (float)w.getMinScrY();
	float max=(float)w.getMaxScrY();
	float scrY=(float)w.GetScrY()-50;
	double scaleY=(scrY/(max-min))*w.getZoomFactor();
	int offsetpy=w.getOffsetPixelsY();
	int offsetY=w.getOffsetY();


	//setting origins
	const int orgy   = w.GetScrY()-40;
	const int extend = w.GetScrY()-50;
	dc.SetDeviceOrigin(70,orgy);
	dc.SetAxisOrientation(true,true);

	//draw the axe
	dc.DrawLine( 0,0, 0, (max-min)*scaleY);

	//maximum value in Y
	int d=max-min;
	if(d<20)
		{
			int k=d/divisions;
			while(k==0)
				{
					divisions--;
					k=d/divisions;
				}
		}
	float step=(max-min)/divisions;
	

	//drawing the axe with the numbers
	wxString s;
	//drawing the first line
	dc.DrawLine(0,0,-10,0);
	s.Printf(_T("%d"),(int)(min));
	dc.DrawText(s,(wxCoord)-20,(wxCoord)0);
	
	
	for(float i=0;i<=(max);i+=step)
	{
		
		int p=(i-min-offsetY)*scaleY+offsetpy;
		if(p>=0)
		{	
			dc.DrawLine(0,p,-10,p);
			s.Printf(_T("%d"),(int)(i));
			dc.DrawText(s,(wxCoord)-20,(wxCoord)p);
		}
	}	
	//drawing the last line
	int p=(max-min-offsetY)*scaleY+offsetpy;
	dc.DrawLine(0,p,-10,p);
	s.Printf(_T("%d"),(int)(max));
	dc.DrawText(s,(wxCoord)-20,(wxCoord)p);
}