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+#ifndef MOLCALCWIDGET_H
+#define MOLCALCWIDGET_H
+/***************************************************************************
+ * Copyright (C) 2005 by Carsten Niehaus *
+ * 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. *
+ * *
+ * 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 "molcalcwidgetbase.h"
+
+#include "moleculeparser.h"
+
+class KToggleAction;
+class KLineEdit;
+
+class Element;
+class MolcalcDialog;
+class MoleculeParser;
+
+/**
+ * This widget is a small calculator for molecules.
+ *
+ * @author Carsten Niehaus
+ * @author Pino Toscano
+ * @author Inge Wallin
+ */
+class MolcalcWidget : public MolcalcWidgetBase
+{
+ Q_OBJECT
+ public:
+ /**
+ * Constructor
+ * @param parent parent widget
+ * @param name name of this widget
+ */
+ MolcalcWidget( QWidget *parent = 0, const char *name = 0 );
+
+ protected slots:
+ void slotCalcButtonClicked();
+
+ private slots:
+ void clear();
+
+ private:
+ /**
+ * @return the HTML code of an element symbol and its
+ * subscripted amount. Eg: Mg<sub>2</sub>
+ */
+ QString compositionString( ElementCountMap &_map );
+
+ /**
+ * This methods gathers all the data and updates the
+ * contents of the widget.
+ */
+ void updateUI();
+
+ private:
+ MoleculeParser m_parser;
+
+ double m_mass;
+ bool m_validInput;
+ ElementCountMap m_elementMap;
+};
+
+
+#endif // MOLCALC_IMPL_H