src/analog/abstractmeter.cpp

/***************************************************************************
 *   Copyright (C) 2006-2008 by Tomasz Ziobrowski                          *
 *   http://www.3electrons.com                                             *
 *   e-mail: t.ziobrowski@3electrons.com                                   *
 *                                                                         *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#include <assert.h>
#include "abstractmeter.h"
#include "functions.h" 

AbstractMeter::AbstractMeter(QWidget * parent )
 : WidgetWithBackground (parent)
{
  m_min=m_minimum=0.0;
  m_max=m_maximum=1.0;
  m_digitOffset=1.0;
  m_nominal=0.25;
  m_critical=0.75; 
} 


bool AbstractMeter::calcMaxMin()
{
 return range(m_minimum,m_maximum,m_min,m_max,8,true); 
}

void AbstractMeter::setValue( double val )
{
  if ( m_value != val )
  {
    m_value = val;
    update(); 
    emit valueChanged(val);
    emit valueChanged((int)val); 
  }
}

void AbstractMeter::setValue( int val )
{
  if ( m_value != val )
  {
    m_value = val;
    update(); // Ciekawe czy tak jest lepiej ??
    // to znaczy najpierw odmalowa� a potem generowa� sygna� ? 
    emit valueChanged(val);
    emit valueChanged(double(val));
  }
}

void AbstractMeter::setMinimum(double i)
{
  if ((m_maximum - i) > 0.00001 )
  {
    m_minimum = i;
    if (calcMaxMin()) updateWithBackground();
  }
}

void AbstractMeter::setMaximum(double i)
{
  if ( (i - m_minimum) > 0.00001 )
  {
    m_maximum = i;
    if (calcMaxMin()) updateWithBackground();
  }
}