Day 03's task

Tushar Raj/src/applicaton/TextEditor.java

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+package applicaton; // Package consists of classes and sub-packages
+import java.awt.EventQueue;
+import java.awt.BorderLayout;
+import java.awt.Color;
+import javax.swing.UIManager;
+import javax.swing.JFrame;
+import javax.swing.JTextPane;
+import javax.swing.JScrollPane;
+import java.awt.Insets;
+import java.io.*;
+
+import java.awt.Component;
+import javax.swing.JMenuBar;
+import javax.swing.JPanel;
+import javax.swing.JButton;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import javax.swing.JOptionPane;
+import javax.swing.JFileChooser;
+import javax.swing.filechooser.FileSystemView;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Formatter;
+import java.util.Scanner;
+
+
+public class TextEditor {
+	private final String title = "Simple Text Editor";
+	static JFrame frame;
+	static JTextPane textArea;
+	private JMenuBar menuBar;
+	private JPanel panel;
+	public static void main(String args[]) {
+		EventQueue.invokeLater(new Runnable() {
+			public void run() {
+				try {
+					//UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+					TextEditor window = new TextEditor();
+					window.frame.setLocationRelativeTo(null);
+					window.frame.setVisible(true);
+				}
+				catch (Exception e) {
+					e.printStackTrace();
+				}
+			}
+		});
+	}
+
+	public TextEditor() {
+		initialize();
+	}
+
+	public void initialize() {
+		frame = new JFrame("Editor");
+		frame.setAutoRequestFocus(false);
+		frame.setTitle(title);
+		frame.setBounds(100, 100, 616, 444);
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		frame.getContentPane().setLayout(new BorderLayout(0, 0));
+
+		textArea = new JTextPane();
+		textArea.setBackground(new java.awt.Color(39, 41, 43));
+		textArea.setForeground(Color.LIGHT_GRAY);
+		textArea.setCaretColor(Color.GREEN);
+		frame.getContentPane().add(textArea, BorderLayout.NORTH);
+
+		JScrollPane scroll = new JScrollPane(textArea);
+		frame.getContentPane().add(scroll, BorderLayout.CENTER);
+
+		menuBar = new JMenuBar();
+		menuBar.setMargin(new Insets(0, 10, 0, 0));
+		menuBar.setBackground(Color.BLACK);
+		menuBar.setForeground(Color.WHITE);
+		frame.getContentPane().add(menuBar, BorderLayout.NORTH);
+
+		JMenu file = new JMenu("File");
+		menuBar.add(file);
+		menuBar.add(new JMenu("|")).setEnabled(false);
+		file.setForeground(Color.CYAN);
+
+
+		JMenuItem newFile = new JMenuItem("New");
+		file.add(newFile);
+		file.addSeparator();
+
+		JMenuItem open = new JMenuItem("Open");
+		file.add(open);
+		file.addSeparator();
+
+		JMenuItem save = new JMenuItem("Save");
+		file.add(save);
+		file.addSeparator();
+
+		JMenuItem saveAs = new JMenuItem("Save As");
+		file.add(saveAs);
+		file.addSeparator();
+
+		open.addActionListener((ActionListener) new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				open();
+			}
+		});
+		newFile.addActionListener((ActionListener) new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				textArea.setText("");
+			}
+		});
+		saveAs.addActionListener((ActionListener) new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				saveAs();	
+			}
+		});
+
+		JMenu edit = new JMenu("Edit");
+		menuBar.add(edit);
+		menuBar.add(new JMenu("|")).setEnabled(false);
+		edit.setForeground(Color.CYAN);
+
+
+		JMenuItem copy = new JMenuItem("Copy");
+		edit.add(copy);
+		edit.addSeparator();
+
+		JMenuItem cut = new JMenuItem("Cut");
+		edit.add(cut);
+		edit.addSeparator();
+
+		JMenuItem pasteitem = new JMenuItem("Paste");
+		edit.add(pasteitem);
+		edit.addSeparator();
+
+		cut.addActionListener(e->textArea.cut());
+		copy.addActionListener(e->textArea.copy());
+		pasteitem.addActionListener(paste->textArea.paste());
+
+
+		JMenu exit = new JMenu("Exit");
+		menuBar.add(exit);
+		menuBar.add(new JMenu("|")).setEnabled(false);
+		JMenuItem quit = new JMenuItem("Quit without Saving");
+		exit.add(quit);
+		exit.setForeground(Color.CYAN);
+
+		quit.addActionListener((ActionListener) new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				System.exit(0);	
+			}
+		});
+
+
+		panel = new JPanel();
+		panel.setBackground(Color.BLACK);
+		panel.setSize(100, 100);
+		frame.getContentPane().add(panel, BorderLayout.SOUTH);
+
+		JButton bold = new JButton();
+		bold.setText("Bold");
+		bold.setBackground(Color.BLACK);
+		bold.setForeground(Color.CYAN);
+
+		JButton italics = new JButton();
+		italics.setText("Italics");
+		italics.setBackground(Color.BLACK);
+		italics.setForeground(Color.CYAN);
+
+		panel.add(bold);
+		panel.add(italics);
+
+
+	}
+
+	public static void open()
+	{	textArea.setText("");
+	JFileChooser j = new JFileChooser("f:"); 
+
+	// Invoke the showsOpenDialog function to show the save dialog 
+	int r = j.showOpenDialog(null); 
+
+	// If the user selects a file 
+	if (r == JFileChooser.APPROVE_OPTION) { 
+		// Set the label to the path of the selected directory 
+		File fi = new File(j.getSelectedFile().getAbsolutePath()); 
+
+		try { 
+			// String 
+			String s1 = "", sl = ""; 
+
+			// File reader 
+			FileReader fr = new FileReader(fi); 
+
+			// Buffered reader 
+			BufferedReader br = new BufferedReader(fr); 
+
+			// Initialize s1 
+			sl = br.readLine(); 
+
+			// Take the input from the file 
+			while ((s1 = br.readLine()) != null) { 
+				sl = sl + "\n" + s1; 
+			} 
+
+			// Set the text 
+			textArea.setText(sl); 
+		} 
+		catch (Exception evt) { 
+			JOptionPane.showMessageDialog(frame, evt.getMessage()); 
+		} 
+	} 
+	// If the user cancelled the operation 
+	else
+		JOptionPane.showMessageDialog(frame, "the user cancelled the operation");
+	}
+
+	public static void saveAs()
+	{
+		JFileChooser j = new JFileChooser(FileSystemView.getFileSystemView().getHomeDirectory()); 
+
+		int r = j.showOpenDialog(null); 
+
+		try {
+			File myObj = new File(j.getSelectedFile().getAbsolutePath());
+			if (myObj.createNewFile()) {
+				FileWriter myWriter = new FileWriter(j.getSelectedFile().getAbsolutePath());
+				myWriter.write(textArea.getText());
+				myWriter.close(); 
+				System.out.println("File created: " + myObj.getName());
+			} else {
+				System.out.println("File already exists.");
+			}
+		} catch (IOException e) {
+			System.out.println("An error occurred.");
+			e.printStackTrace();
+		}
+	}
+}