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/***************************************************************************
taskview.cpp - Header File
-------------------
begin : Tue Feb 08 13:42:00 CET 2002
copyright : (C) 2001 - 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 TASKVIEW_H
#define TASKVIEW_H
#define _CHECK_TASK 0
#define _NEXT_TASK 1
#include "exercisebase.h"
#include "resultwidget.h"
#include "task.h"
#include "taskwidget.h"
#ifdef DEBUG
#include <kdebug.h>
#endif
#include <qwidget.h>
class QVBoxLayout;
class QHBoxLayout;
class QGridLayout;
class QSpacerItem;
class QLabel;
class QPushButton;
class QLineEdit;
class QFrame;
/*! Constructs a QWidget, 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 TaskView : public ExerciseBase
{
Q_OBJECT
public:
/** constructor */
TaskView(QWidget * parent = 0, const char * name = 0,
bool padd_sub = true, bool pmul_div = false,
unsigned int pnr_ratios = 2, unsigned int pmax_md = 10);
/** destructor */
~TaskView();
/** set new task parameters, which will be used for the next task to be
* generated */
void setTaskParameters(bool padd_sub, bool pmul_div, unsigned int pnr_ratios, unsigned int pmax_md);
/** 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 signalTaskSolvedCorrect();
/** class emits this signal, if the task was solved not correctly by the user
* */
void signalTaskSolvedWrong();
private:
bool add_sub;
bool mul_div;
unsigned int nr_ratios;
unsigned int curr_nr_ratios;
unsigned int max_md;
short m_currentState;
ResultWidget* m_resultWidget;
QPushButton* m_checkButton;
QLabel* result_label;
TaskWidget* m_taskWidget;
QLineEdit* numer_edit;
QFrame* edit_line;
QLineEdit* deno_edit;
QGridLayout* baseGrid;
QWidget* baseWidget;
QVBoxLayout* realLayout;
task current_task;
ratio result;
ratio entered_result;
void showResult();
void nextTask();
private slots:
void slotCheckButtonClicked();
};
#endif
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