Filelight – graphical disk usage analyzer
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filelight/src/part/fileTree.cpp

68 lines
1.6 KiB

//Author: Max Howell <max.howell@methylblue.com>, (C) 2004
//Copyright: See COPYING file that comes with this distribution
#include "fileTree.h"
#include <kglobal.h>
#include <klocale.h>
#include <tqfile.h>
//static definitions
const uint File::DENOMINATOR[4] = { 1<<0, 1<<10, 1<<20, 1<<30 };
static const char PREFIX[4] = { 'K', 'M', 'G', 'T' };
TQString
File::fullPath( const Directory *root /*= 0*/ ) const
{
TQString path;
if( root == this )
root = 0; //prevent returning empty string when there is something we could return
for( const Directory *d = (Directory*)this; d != root && d; d = d->parent() )
path.prepend( d->name() );
return path;
}
TQString
File::humanReadableSize( UnitPrefix key /*= mega*/ ) const //FIXME inline
{
return humanReadableSize( m_size, key );
}
TQString
File::humanReadableSize( uint size, UnitPrefix key /*= mega*/ ) //static
{
if( size == 0 )
return "0 B";
TQString s;
double prettySize = (double)size / (double)DENOMINATOR[key];
const KLocale &locale = *KGlobal::locale();
if( prettySize >= 0.01 )
{
//use three significant figures
if( prettySize < 1 ) s = locale.formatNumber( prettySize, 2 );
else if( prettySize < 100 ) s = locale.formatNumber( prettySize, 1 );
else s = locale.formatNumber( prettySize, 0 );
s += ' ';
s += PREFIX[key];
s += 'B';
}
if( prettySize < 0.1 )
{
s += " (";
s += locale.formatNumber( size / DENOMINATOR[key - 1], 0 );
s += ' ';
s += PREFIX[key - 1];
s += "B)";
}
return s;
}