Properly add all view JComponents to the JPanel in the main JFrame.

[Persons_Comparator.git] / src / MainWindowsView.java

import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;

public class MainWindowsView extends JFrame {
    MainWindowsView(String title) {
        //Create and set up the window.
        setTitle(title);
        setSize(300, 300);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new PersonView();

        //Get all Swing/AWT primitive components in the views and add them to the panel.
        ArrayList<Component> components = new ArrayList<>();
        for (int i = 0; i < panel.getComponentCount(); i++) {
            if ((panel.getComponent(i) instanceof Container)) {
                Container subContainer = (Container) panel.getComponent(i);
                for (int j = 0; j < subContainer.getComponentCount(); j++) {
                    components.add(subContainer.getComponent(j));
                }
            }
        }
        for (Component component : components) {
            panel.add(component);
        }

        setContentPane(panel);
    }

    /**
     * Show the GUI. For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    public void showGUI() {

        //Display the window.
        //this.pack();
        this.setVisible(true);
    }

}