// Main window for the Sketcher application
import javax.swing.*;

@SuppressWarnings("serial")
public class SketcherFrame extends JFrame {
  // Constructor
  public SketcherFrame(String title) {
    setTitle(title);                                                   // Set the window title
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    setJMenuBar(menuBar);                                              // Add the menu bar to the window

    JMenu fileMenu = new JMenu("File");                                // Create File menu
    JMenu elementMenu = new JMenu("Elements");                         // Create Elements menu

    // Construct the file drop-down menu
    newItem = fileMenu.add("New");                                      // Add New item
    openItem = fileMenu.add("Open");                                    // Add Open item
    closeItem = fileMenu.add("Close");                                  // Add Close item
    fileMenu.addSeparator();                                            // Add separator
    saveItem = fileMenu.add("Save");                                    // Add Save item
    saveAsItem = fileMenu.add("Save As...");                            // Add Save As item
    fileMenu.addSeparator();                                            // Add separator
    printItem = fileMenu.add("Print");                                  // Add Print item

    // Construct the Element drop-down menu
    elementMenu.add(lineItem = new JRadioButtonMenuItem("Line", true));
    elementMenu.add(rectangleItem = new JRadioButtonMenuItem("Rectangle", false));
    elementMenu.add(circleItem = new JRadioButtonMenuItem("Circle", false));
    elementMenu.add(curveItem = new JRadioButtonMenuItem("Curve", false));
    ButtonGroup types = new ButtonGroup();
    types.add(lineItem);
    types.add(rectangleItem);
    types.add(circleItem);
    types.add(curveItem);

    elementMenu.addSeparator();

    elementMenu.add(redItem = new JCheckBoxMenuItem("Red", false));
    elementMenu.add(yellowItem = new JCheckBoxMenuItem("Yellow", false));
    elementMenu.add(greenItem = new JCheckBoxMenuItem("Green", false));
    elementMenu.add(blueItem = new JCheckBoxMenuItem("Blue", true));

    menuBar.add(fileMenu);                                             // Add the file menu
    menuBar.add(elementMenu);                                          // Add the element menu
  }

  private JMenuBar menuBar = new JMenuBar();                           // Window menu bar

  // File menu items
  private JMenuItem newItem,  openItem,   closeItem,
                    saveItem, saveAsItem, printItem;

  // Element menu items
  private JRadioButtonMenuItem lineItem,  rectangleItem, circleItem,   // Types
                               curveItem, textItem;
  private JCheckBoxMenuItem    redItem,   yellowItem,                  // Colors
                               greenItem, blueItem ;
}