package se1021.layoutmanagers;

/*
 * Created on May 1, 2005
 * Sample of different layout managers used to create UI's
 */

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

@SuppressWarnings("serial")
// This class is the main class (contains the main method) and also the UI class (as it extends JFrame)
public class LayoutManagerSampleApp extends JFrame {

	public static void main(String[] args) {
		// Create an instance of ourselves
		LayoutManagerSampleApp ui  = new LayoutManagerSampleApp(); // use default constructor

		// Initialize some aspects of the JFrame
		ui.setSize(300,500);
		ui.setLocation(100, 200 );
		ui.setBackground( Color.green );
		ui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		ui.setResizable(true);

		// now create the contents
//		ui.createFlowLayoutUI();
//		ui.createBorderLayoutUI();
//		ui.createNestedLayoutUI();
//		ui.createGridLayoutUI();
//		ui.createDoubleNestedJPanelUI();

		// the usual stuff needed to actually display the contents of the JFrame
		ui.setVisible(true);
	}

	/**
	 * Simple example of a FlowLayout used within a JFrame
	 *
	 */
	private void createFlowLayoutUI() {
		setTitle("Flow Layout example");
		
		// Get the content pane object within the JFrame
		Container cp = getContentPane();
		// Create a layout manager
		FlowLayout fl = new FlowLayout(FlowLayout.LEFT);
//		fl = new FlowLayout(FlowLayout.RIGHT);
		cp.setLayout(fl); // tells the content pane to use the layout manager
		cp.setBackground( Color.white );
	
		// create some buttons to be added to the content pane...
		JButton btnQuit = new JButton("Quit");
		btnQuit.setPreferredSize(new Dimension(100,200));
		JButton btnHelp = new JButton("Help");
		JButton btnAdd = new JButton("Add");
		JButton btnSave = new JButton("Save this file to disk");
		btnSave.setBounds(100, 100, 100, 100);
		// ...and add them
		cp.add( btnQuit );
		cp.add( btnHelp );
		cp.add( btnAdd );
		cp.add( btnSave );
	}


	/**
	 * Simple example of a BorderLayout
	 *
	 */
	private void createBorderLayoutUI() {
		setTitle("Border Layout Example");

		Dimension dim = new Dimension(300,300); // a size
		setMinimumSize(dim);

		// Get the content pane within the JFrame
		Container cp = getContentPane();
		// Create a layout manager
		BorderLayout bl = new BorderLayout(10,10); // 10,10=gaps between regions
		cp.setLayout( bl); // tells the content pane to use the layout manager
		cp.setBackground( Color.black );
		
		// create some buttons to be added to the content pane...
		JButton btnQuit = new JButton("Quit");
		JButton btnHelp = new JButton("Help");
		JButton btnAdd = new JButton("Add");
		JButton btnSave = new JButton("Save");
		JButton btnDelete = new JButton("Delete");
		// ...and add them
//		cp.add(new JTextField("North"), BorderLayout.NORTH );
		cp.add( btnQuit, BorderLayout.NORTH );
		cp.add( btnHelp, BorderLayout.SOUTH );
		cp.add( btnAdd, BorderLayout.EAST);
		cp.add( btnSave, BorderLayout.WEST );
//		cp.add(new JTextField("Center"), BorderLayout.CENTER );
		cp.add(btnDelete, BorderLayout.CENTER );

	}

	/**
	 * Example of nested layout.
	 * Outer BorderLayout is applied directly to the Container;
	 * inner layout is applied to a JPanel within the outer layout
	 *
	 */
	private void createNestedLayoutUI() {
		setTitle("Nested layouts example 1");
		
		// Get the content pane within the JFrame
		Container cp = getContentPane();
		// Create a layout manager
		BorderLayout bl = new BorderLayout(10,10); // 10,10=gaps between regions
		cp.setLayout( bl); // tells the content pane to use the layout manager
		cp.setBackground( Color.white );
		
		// create some buttons to be added to the content pane...
		JButton btnQuit = new JButton("Quit");
		JButton btnHelp = new JButton("Help");
		JButton btnAdd = new JButton("Add");
		JButton btnSave = new JButton("Save");
		// ...and add them
//		cp.add(new JTextField("North"), BorderLayout.NORTH );
		cp.add( btnQuit, BorderLayout.NORTH );
		cp.add( btnHelp, BorderLayout.SOUTH );
		cp.add( btnAdd, BorderLayout.EAST);
		cp.add( btnSave, BorderLayout.WEST );

		// create a JPanel object that can itself contain components
		JPanel jp1 = new JPanel();
		// associate a layout manager with the JPanel
		jp1.setLayout( new FlowLayout(FlowLayout.CENTER) );
		jp1.setBackground( Color.RED );
		// put a title on the JPanel's border
		jp1.setBorder(BorderFactory.createTitledBorder("inner JPanel"));
//		jp1.setBorder(BorderFactory.createLoweredBevelBorder());
		jp1.add(new JButton("Exit") );
		jp1.add(new JButton("Terminate") );
		jp1.add(new JButton("Quit the program") );

		cp.add(jp1, BorderLayout.CENTER ); // add the panel as the Center member of the outer layout
	}

	/**
	 * Example of nested layouts
	 * The BorderLayout is applied to an absolute-positioned JPanel within the Container.
	 * An inner JPanel is placed in a region of the outer panel and uses it's own layout manager.
	 */
	private void createDoubleNestedJPanelUI() {
		setTitle("Nested layouts example 2");

		// Get the content pane within the JFrame
		Container cp = getContentPane();
		cp.setBackground( Color.white );
		cp.setLayout( null );

		// create a JPanel object that can itself contain components
		JPanel jp1 = new JPanel();
		// set the panel's size directly
		jp1.setBounds(50,50,400,400);
		// create a layout manager to manage the contents of the panel
		jp1.setLayout( new BorderLayout(10,10) );
		jp1.setBorder(BorderFactory.createTitledBorder("outer JPanel"));
		jp1.setBackground(Color.CYAN);
		// add the panel to the content pane
		cp.add(jp1);
		
		// create some buttons to be added to the outer panel...
		JButton btnQuit = new JButton("Quit");
		JButton btnHelp = new JButton("Help");
		JButton btnAdd = new JButton("Add");
		JButton btnSave = new JButton("Save");
		// ...and add them to the outer panel (NOT the content pane)
		jp1.add( btnQuit, BorderLayout.NORTH );
		jp1.add( btnHelp, BorderLayout.SOUTH );
		jp1.add( btnAdd, BorderLayout.EAST);
		jp1.add( btnSave, BorderLayout.WEST );

		// create another JPanel object that can itself contain components
		JPanel jp2 = new JPanel();
		// associate a layout manager with this JPanel
		jp2.setLayout( new FlowLayout(FlowLayout.CENTER) );
		// put a title on this JPanel's border
		jp2.setBorder(BorderFactory.createTitledBorder("inner JPanel"));
//		jp2.setBorder(BorderFactory.createLoweredBevelBorder());
		jp2.add(new JButton("Exit") );
		jp2.add(new JButton("Terminate") );
		jp2.add(new JButton("Quit the program") );


		// add the inner panel to the outer panel
		jp1.add(jp2, BorderLayout.CENTER );
	}


	/**
	 * Example of nested layouts within an absolutely-positioned JPanel.
	 * The JPanel nests two additional Panels, each containing a different layout.
	 */
	private void createGridLayoutUI() {
		setTitle("Flow Layouts within Grid Example");

		// Get the content pane within the JFrame
		Container cp = getContentPane();
		// Create a layout manager
		BorderLayout bl = new BorderLayout(10,10); // 10,10=gaps between regions
		cp.setLayout( bl); // tells the content pane to use the layout manager
		cp.setBackground( Color.black );
		cp.setLayout( null );

		JPanel absPanel = new JPanel(); // main panel for the frame
		absPanel.setBounds(10,10,450,450);
		absPanel.setBorder(BorderFactory.createTitledBorder("main panel"));
		absPanel.setLayout( new GridLayout(2,3) ); // flow within main panel
		cp.add(absPanel);


		JPanel jp1 = new JPanel();
		jp1.setLayout( new FlowLayout(FlowLayout.LEFT) );
		jp1.setBorder(BorderFactory.createTitledBorder("first Flow layout JPanel "));
		jp1.add(new JButton("A") );
		jp1.add(new JButton("B") );
		jp1.add(new JButton("C") );

		JPanel jp2 = new JPanel();
		jp2.setLayout( new FlowLayout(FlowLayout.CENTER) );
		jp2.setBorder(BorderFactory.createTitledBorder("second Flow layout JPanel "));
		jp2.add(new JButton("One") );
		jp2.add(new JTextField("Two") );
		JLabel label = new JLabel("Three");
		label.setHorizontalAlignment(JLabel.CENTER);
		Font font = label.getFont();
		label.setFont(label.getFont().deriveFont(font.PLAIN, 14.0f));
		label.setForeground(Color.BLUE);
		jp2.add(label );

		JPanel jp3 = new JPanel();
		jp3.setLayout( new FlowLayout(FlowLayout.RIGHT) );
		jp3.setBorder(BorderFactory.createTitledBorder("third Flow layout JPanel"));
		jp3.add(new JButton("G") );
		jp3.add(new JButton("H") );
		jp3.add(new JButton("I") );

		absPanel.add(jp1);
		absPanel.add(jp2);
		absPanel.add(jp3);
		absPanel.add(new JButton("left") );
		absPanel.add(new JButton("middle") );
		absPanel.add(new JButton("right") );
	}

}