1 files changed, 102 insertions, 0 deletions
diff --git a/kbruch/src/exercisecompare.h b/kbruch/src/exercisecompare.h
new file mode 100644
index 00000000..a1c656c2
--- /dev/null
+++ b/kbruch/src/exercisecompare.h
@@ -0,0 +1,102 @@
+/***************************************************************************
+                              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 QGridLayout;
+class QLabel;
+class QPushButton;
+class QVBoxLayout;
+
+
+#include <qwidget.h>
+
+/*! 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 ExerciseCompare : public ExerciseBase
+{
+	Q_OBJECT
+
+public:
+	/** constructor */
+	ExerciseCompare(QWidget * 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;
+	QPushButton* m_checkButton;
+	QPushButton* m_signButton;
+	QLabel* result_label;
+
+	QGridLayout* baseGrid;
+	QWidget* baseWidget;
+	QVBoxLayout* 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