You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tdeedu/kalzium/src/kalziumutils.cpp

89 lines
2.5 KiB

/***************************************************************************
copyright : (C) 2005 by Carsten Niehaus
email : cniehaus@kde.org
***************************************************************************/
/***************************************************************************
* *
* 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 "kalziumutils.h"
#include <kdebug.h>
#include <kglobal.h>
#include <klocale.h>
#include <tqfont.h>
#include <tqrect.h>
#include <tqpainter.h>
#include <tqglobal.h>
#include <math.h>
#if defined(Q_OS_SOLARIS)
#include <ieeefp.h>
#endif
int KalziumUtils::maxSize( const TQString& string, const TQRect& rect, TQFont font, TQPainter* p, int minFontSize, int maxFontSize )
{
bool goodSizeFound = false;
int size = maxFontSize;
TQRect r;
do
{
font.setPointSize( size );
p->setFont( font );
r = p->boundingRect( TQRect(), TQt::AlignAuto, string );
r.moveBy( rect.left(), rect.top() );
if ( rect.contains( r ) )
goodSizeFound = true;
else
size--;
}
while ( !goodSizeFound && ( size > minFontSize ) );
return size;
}
int KalziumUtils::StringHeight( const TQString& string, const TQFont& font, TQPainter* p )
{
return p->boundingRect( TQRect(), TQt::AlignAuto, string ).height();
}
int KalziumUtils::StringWidth( const TQString& string, const TQFont& font, TQPainter* p )
{
return p->boundingRect( TQRect(), TQt::AlignAuto, string ).width();
}
double KalziumUtils::strippedValue( double num )
{
if ( !finite( num ) )
return num;
double power;
power = 1e-6;
while ( power < num )
power *= 10;
num = num / power * 10000;
num = tqRound( num );
return num * power / 10000;
}
TQString KalziumUtils::localizedValue( double val, int precision, unsigned long options )
{
TQString str = KGlobal::locale()->formatNumber( val, precision );
while( str.endsWith("0") )
str.truncate( str.length()-1);
if ( str.endsWith( KGlobal::locale()->decimalSymbol() ) )
{
// we do not want trailing ',' values so readd trailing 0
str.append( '0' ); //
}
return str;
}