LookAndFeel.java

/*
Author:	Pieter du Plessis
Date:	2018/06/01
Description:
Small program to show different component with the available LookAndFeel's on the system.

// Command Prompt - jar cfve LookAndFeel.jar LookAndFeel LookAndFeel.class

*/

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

class LookAndFeel implements ActionListener, ItemListener {
	
	//Class Variables - For Action Events and Item Listener Events methods to action.
	JFrame frame = new JFrame("Showcase Available Look & Feel");
	JButton btn = new JButton("I show a Popup");
	JButton progressBar = new JButton("Progress Bar");
	JButton slider = new JButton("Slider");
	JButton radioButton = new JButton("Radio Buttons");
	JButton checkBoxes = new JButton("Check Boxes");
	JComboBox combo = new JComboBox();
	
	JMenuItem sub1_1 = new JMenuItem("Error Message");
	JMenuItem sub1_2 = new JMenuItem("Information Message");
	JMenuItem sub1_3 = new JMenuItem("Plain Message");
	JMenuItem sub1_4 = new JMenuItem("Question Message");
	JMenuItem sub1_5 = new JMenuItem("Warning Message");
	JMenuItem sub2_1 = new JMenuItem("Error Message");
	JMenuItem sub2_2 = new JMenuItem("Information Message");
	JMenuItem sub2_3 = new JMenuItem("Plain Message");
	JMenuItem sub2_4 = new JMenuItem("Question Message");
	JMenuItem sub2_5 = new JMenuItem("Warning Message");
	JMenuItem sub3_1 = new JMenuItem("Error Message");
	JMenuItem sub3_2 = new JMenuItem("Information Message");
	JMenuItem sub3_3 = new JMenuItem("Plain Message");
	JMenuItem sub3_4 = new JMenuItem("Question Message");
	JMenuItem sub3_5 = new JMenuItem("Warning Message");
	JMenuItem sub4_1 = new JMenuItem("Error Message");
	JMenuItem sub4_2 = new JMenuItem("Information Message");
	JMenuItem sub4_3 = new JMenuItem("Plain Message");
	JMenuItem sub4_4 = new JMenuItem("Question Message");
	JMenuItem sub4_5 = new JMenuItem("Warning Message");
	
	//Set Class Variable with LookAndFeel that is available on the system the program runs on.
	UIManager.LookAndFeelInfo[] laf = UIManager.getInstalledLookAndFeels();
	
	LookAndFeel() {
		frame.setBounds(200, 200, 600, 600);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		// Add available LookAndFeel's to Array for the ComboBox
		for (int i=0;i < laf.length; i++) {
			combo.addItem(laf[i].getName());
		}
		
		// Create and add options to MenuBar
		JMenuBar myMenuBar = new JMenuBar();
		
		JMenu myMenu = new JMenu("Dialog Boxes");
		JMenuItem myMenuItem = new JMenuItem("My Menu Item (Tooltip)");
		myMenuItem.setToolTipText("This button does nothing");
		JMenu subMenu1 = new JMenu("Confirm Dialog");
		JMenu subMenu2 = new JMenu("Input Dialog");
		JMenu subMenu3 = new JMenu("Message Dialog");
		JMenu subMenu4 = new JMenu("Option Dialog");
		
		subMenu1.add(sub1_1);
		subMenu1.add(sub1_2);
		subMenu1.add(sub1_3);
		subMenu1.add(sub1_4);
		subMenu1.add(sub1_5);
		
		subMenu2.add(sub2_1);
		subMenu2.add(sub2_2);
		subMenu2.add(sub2_3);
		subMenu2.add(sub2_4);
		subMenu2.add(sub2_5);
		
		subMenu3.add(sub3_1);
		subMenu3.add(sub3_2);
		subMenu3.add(sub3_3);
		subMenu3.add(sub3_4);
		subMenu3.add(sub3_5);
		
		subMenu4.add(sub4_1);
		subMenu4.add(sub4_2);
		subMenu4.add(sub4_3);
		subMenu4.add(sub4_4);
		subMenu4.add(sub4_5);
		
		myMenu.add(myMenuItem);
		myMenu.add(subMenu1);
		myMenu.add(subMenu2);
		myMenu.add(subMenu3);
		myMenu.add(subMenu4);
		
		myMenuBar.add(myMenu);
		
		// Create and add components to the ToolBar
		JToolBar bar = new JToolBar();
		bar.add(progressBar);
		bar.add(slider);
		bar.add(new JToolBar.Separator());
		bar.add(radioButton);
		bar.add(checkBoxes);
		bar.add(combo);
		
		// Create components for first panel
		JTextField txtFld = new JTextField("Hello world");
		JTextArea txtArea = new JTextArea(10, 30);
		JScrollPane sp = new JScrollPane(txtArea);
		
		for (int i=0;i<laf.length;i++) {
			txtArea.append("Name: "+laf[i].getName()+"\n");
			txtArea.append("Class Name: "+laf[i].getClassName()+"\n");
			txtArea.append("\n");
		}
		txtArea.append("This is an JTextArea field\n\n\n\n\n\nAlmost like and text editor\n\n\n\n\n\n");
		
		// Add Action Listeners to Components
		btn.addActionListener(this);
		progressBar.addActionListener(this);
		slider.addActionListener(this);
		radioButton.addActionListener(this);
		checkBoxes.addActionListener(this);
		combo.addItemListener(this);
		
		sub1_1.addActionListener(this);
		sub1_2.addActionListener(this);
		sub1_3.addActionListener(this);
		sub1_4.addActionListener(this);
		sub1_5.addActionListener(this);
		sub2_1.addActionListener(this);
		sub2_2.addActionListener(this);
		sub2_3.addActionListener(this);
		sub2_4.addActionListener(this);
		sub2_5.addActionListener(this);
		sub3_1.addActionListener(this);
		sub3_2.addActionListener(this);
		sub3_3.addActionListener(this);
		sub3_4.addActionListener(this);
		sub3_5.addActionListener(this);
		sub4_1.addActionListener(this);
		sub4_2.addActionListener(this);
		sub4_3.addActionListener(this);
		sub4_4.addActionListener(this);
		sub4_5.addActionListener(this);
		
		// Add items to the main panel to display most of the components
		JPanel panel = new JPanel();
		panel.add(txtFld);
		panel.add(btn);
		panel.add(sp);
		
		// Add components to the frame
		frame.setJMenuBar(myMenuBar);
		frame.add(BorderLayout.NORTH, bar);
		frame.add(BorderLayout.SOUTH, panel);
		frame.pack();
		frame.setVisible(true);
	}
	
	public void actionPerformed(ActionEvent evt) {
		// Action Event for Clicking on the Buttonss
		Object source = evt.getSource();
		if (source.equals(btn)) {
			// Display plain popup
			JOptionPane.showMessageDialog(null, "This is an PopUp");
		} else if (source.equals(progressBar)) {
			// Display Progress Bar at 45 percent
			JProgressBar pb = new JProgressBar();
			pb.setValue(45);
			pb.setStringPainted(true);
			JOptionPane.showMessageDialog(null, pb);
		} else if (source.equals(slider)) {
			// Display Slider
			JSlider slide = new JSlider(JSlider.HORIZONTAL, -50, 50, 0);
			slide.setMajorTickSpacing(20);
			slide.setMinorTickSpacing(5);
			slide.setPaintTicks(true);
			slide.setPaintLabels(true);
			JOptionPane.showMessageDialog(null, slide);
		} else if (source.equals(radioButton)) {
			// Display Grouped Radio Button on a Panel
			JPanel pnl = new JPanel();
			ButtonGroup bg = new ButtonGroup();
			JRadioButton rb1 = new JRadioButton("Button one", true);
			JRadioButton rb2 = new JRadioButton("Button two", false);
			bg.add(rb1);
			bg.add(rb2);
			pnl.add(rb1);
			pnl.add(rb2);
			JOptionPane.showMessageDialog(null, pnl);
		} else if (source.equals(checkBoxes)) {
			// Display Check Boxes on a Panel
			JPanel pnl = new JPanel();
			JCheckBox cb1 = new JCheckBox("Extra Cheese", true);
			JCheckBox cb2 = new JCheckBox("Extra Meat", false);
			pnl.add(cb1);
			pnl.add(cb2);
			JOptionPane.showMessageDialog(null, pnl);
		} else if (source.equals(sub1_1)) {
			int val = JOptionPane.showConfirmDialog(null, "Confirm dialog showing error message with yes no cancel options", "Confirm Dialog Error Message", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.ERROR_MESSAGE);
			if (val == JOptionPane.YES_OPTION) {
				JOptionPane.showMessageDialog(null, "Yes Option was selected");
			} else if (val == JOptionPane.NO_OPTION) {
				JOptionPane.showMessageDialog(null, "No Option was selected");
			}
		} else if (source.equals(sub1_2)) {
			int val = JOptionPane.showConfirmDialog(null, "Confirm dialog showing information message with yes no cancel options", "Confirm Dialog Information Message", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.INFORMATION_MESSAGE);
			if (val == JOptionPane.YES_OPTION) {
				JOptionPane.showMessageDialog(null, "Yes Option was selected");
			} else if (val == JOptionPane.NO_OPTION) {
				JOptionPane.showMessageDialog(null, "No Option was selected");
			}
		} else if (source.equals(sub1_3)) {
			int val = JOptionPane.showConfirmDialog(null, "Confirm dialog showing plain message with yes no cancel options", "Confirm Dialog Plain Message", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
			if (val == JOptionPane.YES_OPTION) {
				JOptionPane.showMessageDialog(null, "Yes Option was selected");
			} else if (val == JOptionPane.NO_OPTION) {
				JOptionPane.showMessageDialog(null, "No Option was selected");
			}
		} else if (source.equals(sub1_4)) {
			int val = JOptionPane.showConfirmDialog(null, "Confirm dialog showing question message with yes no cancel options", "Confirm Dialog Question Message", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);
			if (val == JOptionPane.YES_OPTION) {
				JOptionPane.showMessageDialog(null, "Yes Option was selected");
			} else if (val == JOptionPane.NO_OPTION) {
				JOptionPane.showMessageDialog(null, "No Option was selected");
			}
		} else if (source.equals(sub1_5)) {
			int val = JOptionPane.showConfirmDialog(null, "Confirm dialog showing warning message with yes no cancel options", "Confirm Dialog Warning Message", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE);
			if (val == JOptionPane.YES_OPTION) {
				JOptionPane.showMessageDialog(null, "Yes Option was selected");
			} else if (val == JOptionPane.NO_OPTION) {
				JOptionPane.showMessageDialog(null, "No Option was selected");
			}
		} else if (source.equals(sub2_1)) {
			String val = JOptionPane.showInputDialog(null, "Enter something:", "Input Something - Error", JOptionPane.ERROR_MESSAGE);
			if (val == null) {
				JOptionPane.showMessageDialog(null, "Operation cancelled");
			} else if (val.length() == 0) {
				JOptionPane.showMessageDialog(null, "You have not entered anything");
			} else if (val != null) {
				JOptionPane.showMessageDialog(null, "You have entered: "+val);
			}
		} else if (source.equals(sub2_2)) {
			String val = JOptionPane.showInputDialog(null, "Enter something:", "Input Something - Information", JOptionPane.INFORMATION_MESSAGE);
			if (val == null) {
				JOptionPane.showMessageDialog(null, "Operation cancelled");
			} else if (val.length() == 0) {
				JOptionPane.showMessageDialog(null, "You have not entered anything");
			} else if (val != null) {
				JOptionPane.showMessageDialog(null, "You have entered: "+val);
			}
		} else if (source.equals(sub2_3)) {
			String val = JOptionPane.showInputDialog(null, "Enter something:", "Input Something - Plain", JOptionPane.PLAIN_MESSAGE);
			if (val == null) {
				JOptionPane.showMessageDialog(null, "Operation cancelled");
			} else if (val.length() == 0) {
				JOptionPane.showMessageDialog(null, "You have not entered anything");
			} else if (val != null) {
				JOptionPane.showMessageDialog(null, "You have entered: "+val);
			}
		} else if (source.equals(sub2_4)) {
			String val = JOptionPane.showInputDialog(null, "Enter something:", "Input Something - Question", JOptionPane.QUESTION_MESSAGE);
			if (val == null) {
				JOptionPane.showMessageDialog(null, "Operation cancelled");
			} else if (val.length() == 0) {
				JOptionPane.showMessageDialog(null, "You have not entered anything");
			} else if (val != null) {
				JOptionPane.showMessageDialog(null, "You have entered: "+val);
			}
		} else if (source.equals(sub2_5)) {
			String val = JOptionPane.showInputDialog(null, "Enter something:", "Input Something - Warning", JOptionPane.WARNING_MESSAGE);
			if (val == null) {
				JOptionPane.showMessageDialog(null, "Operation cancelled");
			} else if (val.length() == 0) {
				JOptionPane.showMessageDialog(null, "You have not entered anything");
			} else if (val != null) {
				JOptionPane.showMessageDialog(null, "You have entered: "+val);
			}
		} else if (source.equals(sub3_1)) {
			JOptionPane.showMessageDialog(null, "There is no message", "Message Dialog - Error", JOptionPane.ERROR_MESSAGE);
		} else if (source.equals(sub3_2)) {
			JOptionPane.showMessageDialog(null, "There is no message", "Message Dialog - Information", JOptionPane.INFORMATION_MESSAGE);
		} else if (source.equals(sub3_3)) {
			JOptionPane.showMessageDialog(null, "There is no message", "Message Dialog - Plain", JOptionPane.PLAIN_MESSAGE);
		} else if (source.equals(sub3_4)) {
			JOptionPane.showMessageDialog(null, "There is no message", "Message Dialog - Question", JOptionPane.QUESTION_MESSAGE);
		} else if (source.equals(sub3_5)) {
			JOptionPane.showMessageDialog(null, "There is no message", "Message Dialog - Warning", JOptionPane.WARNING_MESSAGE);
		} else if (source.equals(sub4_1)) {
			JPanel panel = new JPanel();
			JLabel label = new JLabel("Select Something:");
			String[] data = new String[]{"Option 1", "Option 2", "Option 3"};
			JComboBox combo = new JComboBox(data);
			panel.add(label);
			panel.add(combo);
			int val = JOptionPane.showOptionDialog(null, panel, "Select Something - Error Message", JOptionPane.YES_NO_OPTION, JOptionPane.ERROR_MESSAGE, null, null, null);
			if (val == JOptionPane.YES_OPTION) {
				JOptionPane.showMessageDialog(null, "Yes selected on option: "+combo.getSelectedItem());
			} else if (val == JOptionPane.NO_OPTION) {
				JOptionPane.showMessageDialog(null, "No selected");
			} else {
				JOptionPane.showMessageDialog(null, "NOTHING!!!");
			}
		} else if (source.equals(sub4_2)) {
			JPanel panel = new JPanel();
			ButtonGroup bg = new ButtonGroup();
			JRadioButton rb1 = new JRadioButton("Male", false);
			JRadioButton rb2 = new JRadioButton("Female", false);
			bg.add(rb1);
			bg.add(rb2);
			panel.add(rb1);
			panel.add(rb2);
			String[] options = new String[]{"Accept Selection", "Decline Selection"};
			int val = JOptionPane.showOptionDialog(null, panel, "Male/Female Selection - Information Message", 0, JOptionPane.INFORMATION_MESSAGE, null, options, options[1]);
			if (val == 0) {
				if (rb1.isSelected() == true) {
					JOptionPane.showMessageDialog(null, "Male was selected");
				} else if (rb2.isSelected() == true) {
					JOptionPane.showMessageDialog(null, "Female was selected");
				} else {
					JOptionPane.showMessageDialog(null, "Nothing was selected");
				}
			} else if (val == 1) {
				JOptionPane.showMessageDialog(null, "This selection was declined");
			} else if (val == -1) {
				JOptionPane.showMessageDialog(null, "This operation was closed");
			}
		} else if (source.equals(sub4_3)) {
			String[] options = new String[]{"Dog", "Cat", "Bird", "Fish", "Other"};
			int val = JOptionPane.showOptionDialog(null, "What is you favourite pet?", "Favourite Pet", 0, JOptionPane.PLAIN_MESSAGE, null, options, null);
			if (val < 0) {
				JOptionPane.showMessageDialog(null, "Operation closed!!!");
			} else {
				JOptionPane.showMessageDialog(null, "You have selected '"+options[val]+"' as your favourite pet");
			}
		} else if (source.equals(sub4_4)) {
			String[] options = new String[]{"Pizza", "Pasta", "Burger", "Steak", "Salad", "Other"};
			int val = JOptionPane.showOptionDialog(null, "What is you favourite food?", "Favourite Food", 0, JOptionPane.QUESTION_MESSAGE, null, options, null);
			if (val < 0) {
				JOptionPane.showMessageDialog(null, "Operation closed!!!");
			} else {
				JOptionPane.showMessageDialog(null, "You have selected '"+options[val]+"' as your favourite food");
			}
		} else if (source.equals(sub4_5)) {
			String[] options = new String[]{"Rugby", "Netbal", "Soccer", "Hockey", "Tennis", "Chess", "Other"};
			int val = JOptionPane.showOptionDialog(null, "What is you favourite sport?", "Favourite Sport", 0, JOptionPane.WARNING_MESSAGE, null, options, null);
			if (val < 0) {
				JOptionPane.showMessageDialog(null, "Operation closed!!!");
			} else {
				JOptionPane.showMessageDialog(null, "You have selected '"+options[val]+"' as your favourite sport");
			}
		}
	}
	
	public void itemStateChanged(ItemEvent e) {
		// Item State changed for Combo Box
		Object source = e.getSource();
		if (source.equals(combo)) {
			try {
				// Get selected LookAndFeel and set as current updating components
				UIManager.setLookAndFeel(laf[combo.getSelectedIndex()].getClassName());
				SwingUtilities.updateComponentTreeUI(frame);
				frame.pack();
			} catch (Exception a) {
				System.out.println("There was an error setting look and feel");
			}
		}
	}
	
	public static void main(String[] args) {
		// Run the program
		new LookAndFeel();
	}
}