bar/bar.cpp

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/***************************************************************************
 *   Copyright (C) 2003 by Hans Karlsson                                   *
 *   karlsson.h@home.se                                                      *
 *                                                                         *
 *   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 "bar.h"
Bar::Bar( int  x  , int y, int w, int h ) : Meter(x, y, w, h)
{
    value = 0;
    minValue = 0;
    maxValue = 100;
}

Bar::~Bar()
{}

void Bar::setImage( QString fileName )
{
  QFileInfo fileInfo( fileName );
  QString path;

  if( fileInfo.isRelative() )
  {
     path = themePath + "/" + fileName;
  }
  else
  {
     path = fileName;
  }
    //qDebug( "bar: fileName=" + path );
    pixmap.load( path );
    pixmapWidth = pixmap.width();
    pixmapHeight = pixmap.height();

    if( width==0 || height==0)
    {
        width = pixmapWidth;
        height = pixmapHeight;
    }
}

void Bar::setValue( int v )
{
    if ( v > maxValue )
    {
       // maxValue = v;
       v = maxValue;
    }

    if ( v < minValue )
    {
        //minValue = v;
        v = minValue;
    }

    int diff = maxValue-minValue;
    if ( diff != 0)
    {
        if( vertical )
        {
            value = int( (v-minValue)*height / diff + 0.5 );
        }
        else // horizontal
        {
            value = int( (v-minValue)*width / diff + 0.5 );
        }
    }
    else
    {
        value = 0;
    }
}

void Bar::setValue( QString v )
{
    setValue( (int) (v.toDouble() + 0.5 ) );
}

void Bar::setMax( int m )
{
    maxValue = m;
}

void Bar::setMin( int m )
{
    minValue = m;
}

void Bar::setVertical( bool b )
{
    vertical = b;
}


void Bar::mUpdate( QPainter *p )
{
    if( vertical )
    {
        //  int v = int( (value-minValue)*height / (maxValue-minValue) + 0.5 );
        p->drawTiledPixmap(x,y+height-value, width, value, pixmap, 0, pixmapHeight-value );
    }
    else // horizontal
    {
        //int v = int( (value-minValue)*width / (maxValue-minValue) + 0.5 );
        p->drawTiledPixmap( x, y, value, height, pixmap);
    }
}

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