/* koor.c */

#include <windows.h>
#include <string.h>
#include <stdio.h>
#include "skaala.h"
#define MoveTo(h,x,y) MoveToEx(h,x,y,NULL)

//char *WindowName = "Koordinaatisto";

void Draw_x_asteikko(HDC hDC, double x, double y,double xstep,double xmin,double xmax)
{
  char numero[40] = "";
  double ax;
  for ( ax = x; ax < xmax; ax+=xstep ) {
    sprintf(numero,"%lg",ax);
    TextOut(hDC, sx(ax)-5, sy(y)+15, numero,strlen(numero));
    MoveTo(hDC, sx(ax), sy(y)-10);
    LineTo(hDC, sx(ax), sy(y)+10);
  }
  for ( ax = x; ax > xmin; ax-=xstep ) {
    sprintf(numero,"%lg",ax);
    TextOut(hDC, sx(ax)-5, sy(y)+15, numero,strlen(numero));
    MoveTo(hDC, sx(ax), sy(y)-10);
    LineTo(hDC, sx(ax), sy(y)+10);
  }

}

#if 0
void Draw_y_asteikko(HDC hDC, int x, int y, int ystep,int ymin,int ymax)
{

  char numero[4] = "";
  int i = 0, apu_y = y-ystep;
  while(apu_y > ymin){
    i++;
    sprintf(numero,"%d",i);
    TextOut(hDC, x-30 ,apu_y-10, numero,strlen(numero));
    MoveTo(hDC, x-10, apu_y);
    LineTo(hDC, x+10, apu_y);
    apu_y -= ystep;
  }
  apu_y = y+ystep;
  i = 0;
  while(apu_y < ymax){
    i--;
    sprintf(numero,"%d",i);
    TextOut(hDC, x+15, apu_y-10, numero,strlen(numero));
    MoveTo(hDC, x-10, apu_y);
    LineTo(hDC, x+10, apu_y);
    apu_y += ystep;
  }
}
#endif

void Koordinaatisto(HWND hWnd, HDC hDC, double x, double y, double xstep, double ystep,
                        double xmin, double xmax, double ymin, double ymax)
{
#pragma argsused

  MoveTo(hDC, sx(xmin), sy(y)); /* piirretään x-akseli */
  LineTo(hDC, sx(xmax), sy(y));
  MoveTo(hDC, sx(x), sy(ymin)); /* piirretään y-akseli */
  LineTo(hDC, sx(x), sy(ymax));
  Draw_x_asteikko(hDC,x,y,xstep,xmin,xmax);
//  Draw_y_asteikko(hDC,x,y,ystep,ymin,ymax);
}