/***************************************************************************
                          textinput.cpp  -  description
                             -------------------
    begin                : Sat May 5 2001
    copyright            : (C) 2001 by Volker Schroer
    email                : DL1KSV@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#include "textinput.h"
#include <qobject.h>
#include <errno.h>
#include "parameter.h"

extern Parameter settings;
extern int errno;

TextInput::TextInput(int ptt = -1):Input(ptt)
{
}
TextInput::~TextInput()
{
}

/** Opens the Device for writting, for Textfiles this means write nothing ! */
bool TextInput::open_Device_write(QString *errorstring)
{

const char name[]="Demo.out";
fd=open(name,O_RDWR|O_CREAT|O_TRUNC,S_IRWXU);
if (fd >= 0)
  return true;
else
 {
  *errorstring= QString(QObject::tr("Could not open Demo.out"));
   return false;
 }
}

/** gets the samples from the device */
int TextInput::getSamples(double *sample,int anzahl)
{
static char Buf[128];
int pos;
int i,j;
double x;

pos = 0;
j=0;
while (j<anzahl)
 {
  do
  i= read(fd,&Buf[pos],sizeof(Buf[0]));
  while ( (i == 1) && (Buf[pos++] != '\n') && (pos <128) );
  if ( i== 1 )
   {
   	if ( pos >= 127)
   		qWarning("Input file has strange lines\n");
    pos--;
	  Buf[pos]=0;
    x = atof(Buf);
	  *(sample++)=x;
    j++;
		pos=0;
    }
   else

		
    lseek(fd,0,SEEK_SET);
		
 } // End while
return j;
}

/** puts the Samples onto the Device, for a Textmode Device nothing happens */
int TextInput::putSamples(double *sample,int anzahl)
{
int i;
char c;
QString s;
for(i=0;i<anzahl;i++)
	{
	 
                s.setNum(sample[i],'f',6);
                write(fd,s.latin1(),s.length());
		c='\n';
		write(fd,&c,1);
	}
return anzahl;
}
	
/** Dummy */
void TextInput::PTT(bool )
{
}
/** Dummy */
bool TextInput::open_Device_read(QString *errorstring)
{
*errorstring=QString("");
if (settings.inputFilename == "" )
 {
   *errorstring= QString(QObject::tr("Error, no Demofile selected")); 
    return false;
  }
fd = open(settings.inputFilename,O_RDONLY);
if (fd > 0)
        return true;
else
 {
    *errorstring= QString(QObject::tr("Error, Could not open Demofile "));
    return false;
  }
   
}
bool TextInput::close_Device()
{
if (fd >= 0)
        close(fd);
fd = -1;
return true;
}