/*************************************************************************** exercisecompare.h ------------------- begin : 2004/06/03 copyright : (C) 2004 by Sebastian Stein email : seb.kde@hpfsc.de ***************************************************************************/ /*************************************************************************** * * * 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. * * * ***************************************************************************/ #ifndef EXERCISECOMPARE_H #define EXERCISECOMPARE_H #define DEBUG #ifdef DEBUG #include <kdebug.h> #endif #include "exercisebase.h" #include "ratio.h" #include "ratiowidget.h" class TQGridLayout; class TQLabel; class TQPushButton; class TQVBoxLayout; #include <tqwidget.h> /*! Constructs a TQWidget, which shows the task to the user. * The class also provides input fields, so that the user can enter the result. * It also controls the interaction, so that the entered result gets checked * and a new task can be generated. * \author Sebastian Stein * */ class ExerciseCompare : public ExerciseBase { Q_OBJECT public: /** constructor */ ExerciseCompare(TQWidget * parent = 0, const char * name = 0); /** destructor */ ~ExerciseCompare(); /** force the creation of a new task */ void forceNewTask(); public slots: void update(); signals: /** class emits this signal, if the task was solved correctly by the user */ void signalExerciseSolvedCorrect(); /** class emits this signal, if the task was solved not correctly by the user * */ void signalExerciseSolvedWrong(); private: short m_currentState; RatioWidget* m_firstRatioWidget; RatioWidget* m_secondRatioWidget; TQPushButton* m_checkButton; TQPushButton* m_signButton; TQLabel* result_label; TQGridLayout* baseGrid; TQWidget* baseWidget; TQVBoxLayout* realLayout; ratio m_firstRatio; ratio m_secondRatio; enum SignButtonState { lessThen, greaterThen }; SignButtonState m_signButtonState; void createTask(); void showResult(); void nextTask(); private slots: void slotCheckButtonClicked(); void slotSignButtonClicked(); }; #endif