questionpanel

package view;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Label;
import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextArea;

import model.QuestionLibrary;

public class QuestionPanel extends JPanel {
    private JTextArea taQuestion;
    private CustomButton btA, btB, btC, btD;
    private QuestionLibrary library;

    private JPanel questionPanel, answerPanel;

    public QuestionPanel() {
        setPreferredSize(new Dimension(360, 200));
        setBorder(BorderFactory.createTitledBorder("Question"));
        // init components
        taQuestion = new JTextArea(10, 30);
        taQuestion.setMargin(new Insets(10, 10, 10, 10));
        taQuestion.setLineWrap(true);
        taQuestion.setWrapStyleWord(true);
        taQuestion.setEditable(false);
        taQuestion.setText("Question Placeholder");
        taQuestion.setFocusable(false);
        btA = new CustomButton("a", "Answer Placeholder");
        btB = new CustomButton("b", "Answer Placeholder");
        btC = new CustomButton("c", "Answer Placeholder");
        btD = new CustomButton("d", "Answer Placeholder");
        setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
        questionPanel = new JPanel();
        add(questionPanel);
        questionPanel.add(taQuestion);
        answerPanel = new JPanel();
        add(answerPanel);
        GridLayout layout = new GridLayout(0, 2);
        layout.setHgap(5);
        layout.setVgap(5);
        answerPanel.setLayout(layout);
        answerPanel.add(btA);
        answerPanel.add(btB);
        answerPanel.add(btC);
        answerPanel.add(btD);
        setVisible(false);
    }

    public void updateQuestion() {
        String content = library.getQuestions().get(library.getQuestionIndex()).getContent();
        String a = library.getQuestions().get(library.getQuestionIndex()).getAnswerA();
        String b = library.getQuestions().get(library.getQuestionIndex()).getAnswerB();
        String c = library.getQuestions().get(library.getQuestionIndex()).getAnswerC();
        String d = library.getQuestions().get(library.getQuestionIndex()).getAnswerD();
        taQuestion.setText(content);
        btA.setText(a);
        btB.setText(b);
        btC.setText(c);
        btD.setText(d);
    }

    public CustomButton getBtA() {
        return btA;
    }

    public CustomButton getBtB() {
        return btB;
    }

    public CustomButton getBtC() {
        return btC;
    }

    public CustomButton getBtD() {
        return btD;
    }

    public void setLibrary(QuestionLibrary library) {
        this.library = library;
    }
}