at.reisisoft.jku.ce.adaptivelearning.topic.accounting.ProfitQuestion.java Source code

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Here is the source code for at.reisisoft.jku.ce.adaptivelearning.topic.accounting.ProfitQuestion.java

Source

package at.reisisoft.jku.ce.adaptivelearning.topic.accounting;

/*This file is part of the project "Reisisoft Adaptive Testing",
 * which is licenced under LGPL v3+. You may find a copy in the source,
 * or obtain one at http://www.gnu.org/licenses/lgpl-3.0-standalone.html */
import at.reisisoft.jku.ce.adaptivelearning.core.IQuestion;
import at.reisisoft.jku.ce.adaptivelearning.html.HtmlLabel;
import at.reisisoft.jku.ce.adaptivelearning.xml.XmlQuestionData;
import at.reisisoft.jku.ce.adaptivelearning.xml.topic.accounting.XmlProfitQuestion;

import com.vaadin.ui.ComboBox;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;

public class ProfitQuestion extends VerticalLayout implements IQuestion<ProfitDataStorage> {

    private static final long serialVersionUID = 6373936654529246422L;
    private ProfitDataStorage solution;
    private float difficulty = 0;
    private ComboBox answerSelector;
    private Label question;

    public ProfitQuestion(ProfitDataStorage solution, Float difficulty, String questionText) {
        this(solution, ProfitDataStorage.getEmptyDataStorage(), difficulty, questionText);
    }

    public ProfitQuestion(ProfitDataStorage solution, ProfitDataStorage prefilled, float difficulty,
            String questionText) {
        // super(1, 2);
        this.difficulty = difficulty;
        answerSelector = new ComboBox("Choose the right answer:");
        answerSelector.addItems((Object[]) ProfitPossibleAnswers.values());
        answerSelector.setSizeFull();
        answerSelector.setValue(prefilled.getValue());
        answerSelector.setEnabled(prefilled.getValue() == null);
        question = new HtmlLabel();
        setQuestionText(questionText);
        this.solution = solution;
        addComponent(question);
        addComponent(answerSelector);
        setSpacing(true);
    }

    @Override
    public String getQuestionText() {
        return question.getValue();
    }

    public void setQuestionText(String questionText) {
        question.setValue("<br />" + questionText + "<br />");
    }

    public void setDifficulty(float difficulty) {
        this.difficulty = difficulty;
    }

    @Override
    public ProfitDataStorage getSolution() {
        return solution;
    }

    @Override
    public ProfitDataStorage getUserAnswer() {
        return new ProfitDataStorage((ProfitPossibleAnswers) answerSelector.getValue());
    }

    @Override
    public double checkUserAnswer() {
        return solution.equals(getUserAnswer()) ? 1d : 0d;
    }

    @Override
    public float getDifficulty() {
        return difficulty;
    }

    @Override
    public XmlQuestionData<ProfitDataStorage> toXMLRepresentation() {
        return new XmlProfitQuestion(getSolution(), getQuestionText(), getDifficulty());
    }

    @Override
    public double getMaxPoints() {
        return 1d;
    }

}