import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
* @author Dung X. Nguyen
* @author Stephen B. Wong
*/
public class SortGUI extends JFrame {
    private BorderLayout _borderLayout1 = new BorderLayout();  // overall layout manager.
    private JButton _randomizeBtn = new JButton ("Randomize");
    private JButton _sortBtn = new JButton ("Sort");
    private JPanel _jPanel1 = new JPanel();  // for the randomize and sort butons.
    private JTextArea _outputTA = new JTextArea(); // displays the array model in text.
    private JScrollPane _jScrollPane1 = new JScrollPane(); // to scroll _outputTA.
    private JRadioButton _insertionRBtn = new JRadioButton ("Insertion Sort");
    private JRadioButton _quickRBtn = new JRadioButton ("Quick Sort");
    private JRadioButton _mergeRBtn = new JRadioButton ("Merge Sort");
    private JRadioButton _selectionRBtn = new JRadioButton ("Selection Sort");
    private JPanel _jPanel2 = new JPanel(); // for the sort radio buttons.
    private GridLayout _gridLayout1 = new GridLayout(); // lays out the sort radio buttons.
    private ButtonGroup _buttonGroup = new ButtonGroup(); // to group the sort radio buttons as exclusive choices.
    private GraphCanvas _graphCanvas = new GraphCanvas(); // graphs the array model

    public SortGUI() {
        enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        try {
            initGUI();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
        _buttonGroup.add(_insertionRBtn);
        _buttonGroup.add(_quickRBtn);
        _buttonGroup.add(_mergeRBtn);
        _buttonGroup.add(_selectionRBtn);
    }

    //Component initialization
    private void initGUI() throws Exception  {
        setSize (new Dimension(600, 450));
        setTitle ("Sort Animation");
        _jPanel1.add (_randomizeBtn, null);
        _jPanel1.add (_sortBtn, null);
        _gridLayout1.setColumns (1);
        _gridLayout1.setRows (0);
        _jPanel2.setLayout (_gridLayout1);
        _selectionRBtn.setToolTipText ("");
        _graphCanvas.setPreferredSize (new Dimension( 400, 400));
        _jPanel2.add (_insertionRBtn, null);
        _jPanel2.add (_selectionRBtn, null);
        _jPanel2.add (_mergeRBtn, null);
        _jPanel2.add (_quickRBtn, null);
        _jScrollPane1.getViewport ().add (_outputTA, null);
        getContentPane().setLayout (_borderLayout1);
        getContentPane().add (_graphCanvas, BorderLayout.EAST);
        getContentPane().add (_jPanel1, BorderLayout.NORTH);
        getContentPane().add (_jPanel2, BorderLayout.WEST);
        getContentPane ().add (_jScrollPane1, BorderLayout.CENTER);
    }

    //Overridden so we can exit on System Close
    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if(e.getID() == WindowEvent.WINDOW_CLOSING) {
            System.exit(0);
        }
    }


    public JTextArea getOutputTA() {
        return _outputTA;
    }

    public JRadioButton getInsertionRBtn() {
        return _insertionRBtn;
    }

    public JRadioButton getQuickRBtn() {
        return _quickRBtn;
    }

    public JRadioButton getMergeRBtn() {
        return _mergeRBtn;
    }

    public JRadioButton getSelectionRBtn() {
        return _selectionRBtn;
    }

    public JButton getRandomizeBtn() {
        return _randomizeBtn;
    }

    public JButton getSortBtn() {
        return _sortBtn;
    }

    public GraphCanvas getGraphCanvas () {
        return _graphCanvas;
    }
}