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/***************************************************************************
* Copyright (C) 2005 Tobi Vollebregt *
* tobivollebregt@gmail.com *
* *
* Copyright (C) 2005 by Joe Ferris *
* jferris@optimistictech.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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <kservice.h>
#include <tdeglobal.h>
#include <kiconloader.h>
#include "calculatorcatalog.h"
#include "expression.h"
Expression::Expression(CalculatorCatalog* catalog, const TQString& text): KatapultItem(), _catalog(catalog), _text(text)
{
evaluate();
}
TQPixmap Expression::icon(int size) const
{
const char* icon = "checkmark";
if (_parseError) {
icon = "no";
}
return TDEGlobal::iconLoader()->loadIcon(icon, TDEIcon::NoGroup, size);
}
TQString Expression::text() const
{
return _text;
}
void Expression::setText(const TQString& text)
{
_text = text;
evaluate();
}
double Expression::result() const
{
return _result;
}
bool Expression::parseError() const
{
return _parseError;
}
CalculatorCatalog* Expression::catalog() const
{
return _catalog;
}
void Expression::evaluate(bool assignments) const
{
if (!_text.isEmpty()) {
TQString t = _text;
CalculatorCatalog::ParserControl cntrl;
cntrl.expression = t.replace(',', '.').ascii();
cntrl.catalog = _catalog;
cntrl.assignments = assignments;
if (yyparse(&cntrl) == 0) {
_result = cntrl.result;
_parseError = false;
if (assignments) {
_catalog->setVar(_catalog->getVarID("ans"), _result);
}
} else {
_parseError = true;
}
} else {
_parseError = true;
}
}
#include "expression.moc"
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