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diff --git a/kpercentage/kpercentage/kanswer.h b/kpercentage/kpercentage/kanswer.h
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+/***************************************************************************
+                        kanswer.h  -  description
+                           -------------------
+  begin                : Fri Nov 30 2001
+  copyright            : (C) 2001 by Matthias Messmer &
+                                     Carsten Niehaus &
+                                     Robert Gogolok
+  email                : bmlmessmer@web.de &
+                         cniehaus@gmx.de &
+                         mail@robert-gogolok.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 KANSWER_H
+#define KANSWER_H
+
+// Qt includes
+
+// KDE includes
+#include <kdialog.h>
+
+class QCanvas;
+class QCanvasPixmapArray;
+class QCanvasSprite;
+class QCanvasView;
+class QHBoxLayout;
+class QLabel;
+
+class KAnimation;
+
+class KPushButton;
+
+/**
+ * A small dialog, which gives feedback, if the input was wrong or false.
+ * It provides reading several sentences from file and selecting by chance.
+ *
+ * @author Matthias Messmer & Carsten Niehaus & Robert Gogolok
+ */
+class KAnswer : public KDialog
+{
+    Q_OBJECT
+    public:
+        /**
+        * The constructor doesn't need any parameters but the parent,
+        * because it will not be used in any other context.
+        *
+        * @param parent Parent widget for modal functionality
+        */
+        KAnswer( QWidget *parent );
+
+        // public functions
+        /** setting/changing feedback text and pic */
+        void setAnswer( int modus );
+
+    public slots:
+        /** reimplemented: close the window after some time */
+        void timerEvent( QTimerEvent * );
+        void accept();
+        
+        int exec();
+
+    private:
+        // private functions
+        /** Loads feadback sentences from file */
+        void loadAnswers();
+        /** Gets a answer by chance for well solved tasks. */
+        QString getRightAnswer();
+        /** Gets a answer by chance for not solved tasks. */
+        QString getWrongAnswer();
+
+        // GUI widgets
+        /** Label for the answer text */
+        QLabel *TextLabelAnswer;
+        /** OK button */
+        KPushButton *ButtonOK;
+
+        /** List of feedback text for well solved tasks. */
+        QStringList rightAnswerList;
+        /** List of feedback text for not solved tasks. */
+        QStringList wrongAnswerList;
+
+        QHBoxLayout *mainLayout;
+
+        KAnimation *right_animation;
+        KAnimation *wrong_animation;
+        
+        int advPer;
+
+        QCanvasView *canvas_view;
+        QCanvasPixmapArray *pixs;
+        QCanvas *canvas;
+
+        void setupSprite();
+};
+
+#endif