diff options
Diffstat (limited to 'katapult/plugins/catalogs/calculatorcatalog/expression.cpp')
| -rw-r--r-- | katapult/plugins/catalogs/calculatorcatalog/expression.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/katapult/plugins/catalogs/calculatorcatalog/expression.cpp b/katapult/plugins/catalogs/calculatorcatalog/expression.cpp new file mode 100644 index 0000000..37e80bc --- /dev/null +++ b/katapult/plugins/catalogs/calculatorcatalog/expression.cpp @@ -0,0 +1,94 @@ +/*************************************************************************** + * 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 <kglobal.h> +#include <kiconloader.h> + +#include "calculatorcatalog.h" +#include "expression.h" + + +Expression::Expression(CalculatorCatalog* catalog, const QString& text): KatapultItem(), _catalog(catalog), _text(text) +{ + evaluate(); +} + +QPixmap Expression::icon(int size) const +{ + const char* icon = "checkmark"; + if (_parseError) { + icon = "no"; + } + return KGlobal::iconLoader()->loadIcon(icon, KIcon::NoGroup, size); +} + +QString Expression::text() const +{ + return _text; +} + +void Expression::setText(const QString& 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()) { + QString 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" |