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Added keystrokes, toggle mode, fonts and sizes, and set filename to be saved #41

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c7b192b
day 2 task done
Chibi-girl Oct 4, 2020
ae0db1c
Day 3 tasks done
Chibi-girl Oct 5, 2020
c954c26
Day 4 tasks done
Chibi-girl Oct 6, 2020
5d6273d
added a couple of innovations
Chibi-girl Oct 11, 2020
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368 changes: 368 additions & 0 deletions Chibi_girl/SimpleTextEditor.java
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Original file line number Diff line number Diff line change
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package application;
import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.awt.event.*;
import java.awt.font.TextAttribute;

import javax.swing.AbstractAction;
import javax.swing.text.*;
import javax.swing.undo.*;
import javax.swing.event.*;
import javax.swing.plaf.metal.MetalLookAndFeel;
import javax.swing.plaf.metal.OceanTheme;

class SimpleTextEditor implements ActionListener
{
JFrame frame;JTextPane txtarea;JScrollPane scroll;
JMenuBar menu;JMenu file,edit,exit,view,preferences;
JMenuItem newfile,openfile,savefile,undo,redo,saveas,toggle,font,copy,cut,paste,view_panel,hide_panel,close,printfile;
JPanel panel,controlPanel,buttonpanel;JButton bold,italics,underline,ok,cancel;JOptionPane dopen,dquit;
JLabel sampleText;JDialog dialog;JComboBox fontComboBox,sizeComboBox;JCheckBox boldCheck, italCheck;
String filename=null;String[] fonts;Font f;
Integer[] sizes = { 7, 8, 9, 10, 11, 12, 14, 18, 20, 22, 24, 36 };
UndoManager undomanager=new UndoManager();

SimpleTextEditor()
{
frame= new JFrame("Untitled Document");
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

}
catch(Exception e) { }


frame.setBounds(100,100,616,444);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

txtarea= new JTextPane();
txtarea.setFont(new Font("Chilanka Regular", Font.PLAIN, 20));

frame.getContentPane().add(txtarea,BorderLayout.NORTH);
txtarea.setBackground(Color.WHITE);
txtarea.setForeground(Color.MAGENTA);
txtarea.setBounds(200,100,200,100);


scroll= new JScrollPane(txtarea);
frame.getContentPane().add(scroll,BorderLayout.CENTER);

menu=new JMenuBar();
menu.setMargin(new Insets(5,10,5,10));
menu.setBackground(new java.awt.Color(120,180,255));

frame.getContentPane().add(menu,BorderLayout.NORTH);

file=new JMenu("File");edit=new JMenu("Edit");view=new JMenu("Bottom Panel");
preferences=new JMenu("Preferences");
menu.add(file);menu.add(new JMenu("|")).setEnabled(false);
menu.add(edit);menu.add(new JMenu("|")).setEnabled(false);
menu.add(preferences);menu.add(new JMenu ("|")).setEnabled(false);
undomanager=new UndoManager();
newfile=new JMenuItem("New");openfile=new JMenuItem("Open");savefile=new JMenuItem("Save");
saveas=new JMenuItem("SaveAs");printfile=new JMenuItem("Print");
view_panel=new JMenuItem("View");hide_panel=new JMenuItem("Hide");
copy=new JMenuItem("Copy");paste=new JMenuItem("Paste");close=new JMenuItem("Exit");
cut=new JMenuItem("Cut");toggle=new JMenuItem("Toggle view mode");font=new JMenuItem("Fonts And Colors");

newfile.addActionListener(this);openfile.addActionListener(this);printfile.addActionListener(this);
savefile.addActionListener(this);saveas.addActionListener(this);
copy.addActionListener(this);paste.addActionListener(this);cut.addActionListener(this);
view_panel.addActionListener(this);hide_panel.addActionListener(this);
close.addActionListener(this);toggle.addActionListener(this);font.addActionListener(this);

undo=new JMenuItem("Undo");redo=new JMenuItem("Redo");
undo.addActionListener((new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
undomanager.undo();
} catch (Exception ex) {
}
}
}));
redo.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
undomanager.redo();
} catch (Exception ex) {
}
}
});
txtarea.getDocument().addUndoableEditListener(new UndoableEditListener() {
public void undoableEditHappened(UndoableEditEvent e) {
undomanager.addEdit(e.getEdit());
}
});
txtarea.getActionMap().put("Undo",new AbstractAction("Undo") {
public void actionPerformed(ActionEvent e) {
try {
if (undomanager.canUndo()) {
undomanager.undo();
}
} catch (CannotUndoException ex) {
}
}
});

txtarea.getInputMap().put(KeyStroke.getKeyStroke("control Z"), "Undo");
txtarea.getActionMap().put("Redo",new AbstractAction("Redo") {
public void actionPerformed(ActionEvent e) {
try {
if (undomanager.canRedo()) {
undomanager.redo();
}
} catch (CannotRedoException ex) {
}
}
});
txtarea.getInputMap().put(KeyStroke.getKeyStroke("control Y"), "Redo");


menu.add(close);
file.add(newfile);file.addSeparator();file.add(openfile);
file.addSeparator();file.add(printfile);file.addSeparator();file.add(savefile);
file.addSeparator();view.add(view_panel);view.addSeparator();view.add(hide_panel);
preferences.add(view);preferences.addSeparator();file.add(saveas);edit.add(cut);edit.addSeparator();
edit.add(copy);edit.addSeparator();edit.add(paste);edit.addSeparator();edit.add(undo);
edit.addSeparator();edit.add(redo);preferences.add(toggle);preferences.addSeparator();
preferences.add(font);

panel=new JPanel();
panel.setBackground(Color.PINK);
panel.setSize(100,100);
frame.getContentPane().add(panel,BorderLayout.SOUTH);

bold=new JButton("Bold");italics=new JButton("Italics");underline=new JButton("Underline");
bold.setBackground(new java.awt.Color(100,140,255));
bold.addActionListener(this);
italics.setBackground(new java.awt.Color(100,140,255));
underline.setBackground(new java.awt.Color(100,140,255));
bold.setFont(new Font("Serif", Font.BOLD, 15));
italics.setFont(new Font("Serif", Font.ITALIC, 15));
underline.setFont(new Font("Serif", Font.PLAIN, 15));
Font font = underline.getFont();
Map attributes = font.getAttributes();
attributes.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
underline.setFont(font.deriveFont(attributes));


bold.addActionListener(new StyledEditorKit.BoldAction());
italics.addActionListener(new StyledEditorKit.ItalicAction());
underline.addActionListener(new StyledEditorKit.UnderlineAction());

panel.add(bold);panel.add(italics);panel.add(underline);

sampleText= new JLabel(" Sample Text");
dialog = new JDialog(frame,"Select Font");
dialog.add(sampleText, BorderLayout.CENTER);

FontListener fl = new FontListener();

GraphicsEnvironment g = GraphicsEnvironment.getLocalGraphicsEnvironment();
fonts = g.getAvailableFontFamilyNames();

controlPanel = new JPanel(); buttonpanel=new JPanel();
fontComboBox = new JComboBox(fonts);sizeComboBox = new JComboBox(sizes);
boldCheck = new JCheckBox("Bold");italCheck = new JCheckBox("Italics");
ok= new JButton("Select"); cancel=new JButton ("Cancel");

boldCheck.addActionListener(fl);fontComboBox.addActionListener(fl);ok.addActionListener(this);
italCheck.addActionListener(fl);sizeComboBox.addActionListener(fl);cancel.addActionListener(this);

controlPanel.add(new JLabel("Family: "));controlPanel.add(new JLabel("Size: "));
sizeComboBox.setSelectedIndex(5);

controlPanel.add(fontComboBox);controlPanel.add(sizeComboBox);buttonpanel.add(ok);
controlPanel.add(boldCheck);controlPanel.add(italCheck);buttonpanel.add(cancel);

dialog.add(controlPanel, BorderLayout.SOUTH);
dialog.add(buttonpanel,BorderLayout.NORTH);
}

public void actionPerformed(ActionEvent e)
{
String s = e.getActionCommand();

if (s.equals("Cut")) {
txtarea.cut();
}
else if (s.equals("Copy")) {
txtarea.copy();
}
else if (s.equals("Paste")) {
txtarea.paste();
}
else if (s.equals("Toggle view mode")){
if(txtarea.getBackground()==Color.WHITE)
{
txtarea.setBackground(Color.DARK_GRAY);
txtarea.setForeground(Color.CYAN);
panel.setBackground(Color.LIGHT_GRAY);
menu.setBackground(Color.LIGHT_GRAY);
}
else
{
txtarea.setBackground(Color.WHITE);
txtarea.setForeground(Color.MAGENTA);
panel.setBackground(Color.PINK);
menu.setBackground(new java.awt.Color(120,180,255));
}
}
else if (s.contentEquals("Fonts And Colors")) {
dialog.setSize(620, 200);
dialog.setLocationRelativeTo(null);
dialog.setVisible(true);
}
else if (s.contentEquals("Select"))
{
txtarea.setFont(f);
dialog.setVisible(false);
}
else if (s.contentEquals("Cancel")) {
dialog.setVisible(false);
}
else if (s.equals("Exit")) {
Object stringArray[] = { "Sure", "No. I'd like to change/save" };
int response=JOptionPane.showOptionDialog(frame, "You're about to exit. Continue?", "Select an Option",
JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE,null, stringArray,stringArray[0]);

if (response == JOptionPane.YES_OPTION) {
frame.setVisible(false);
}

}
else if (s.equals("New")) {
Object stringArray[] = { "Sure", "No. I'd like to change/save" };
int response=JOptionPane.showOptionDialog(frame, "You're about to delete this text. Continue?", "Select an Option",
JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE,null, stringArray,stringArray[0]);

if (response == JOptionPane.YES_OPTION) {
txtarea.setText("");
filename=null;
frame.setTitle("Untitled Document");
}
}

else if (s.equals("View")) {
panel.setVisible(true);
}
else if (s.equals("Hide")) {
panel.setVisible(false);
}

else if (s.equals("Open"))
{
JFileChooser j = new JFileChooser("/home/aishwarya");
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

filename=j.getSelectedFile().getAbsolutePath();
String name=j.getSelectedFile().getName();
File fi = new File(filename);
try {
String s1 = "", sl = "";
BufferedReader br = new BufferedReader(new FileReader(fi));
sl = br.readLine();
while ((s1 = br.readLine()) != null) {
sl = sl + "\n" + s1;
}
txtarea.setText(sl);
frame.setTitle(name);
}
catch (Exception evt) {
JOptionPane.showMessageDialog(frame, evt.getMessage());
}
}
}
else if (s.equals("SaveAs")) {
saveFile(null);
}
else if(s.equals("Save")) {
saveFile(filename);
}
else if (s.equals("Print")) {
try {
txtarea.print();
}
catch (Exception evt) {
JOptionPane.showMessageDialog(frame, evt.getMessage());
}
}

}


private void saveFile(String name)
{
if (name == null) {
// get filename from user
JFileChooser fc = new JFileChooser();
if (fc.showSaveDialog(null) != JFileChooser.CANCEL_OPTION)
name = fc.getSelectedFile().getAbsolutePath();
String setname=fc.getSelectedFile().getName();
frame.setTitle(setname);
}
if (name != null) {
try {
Formatter out = new Formatter(new File(name));
filename = name;
out.format("%s", txtarea.getText());
out.close();
JOptionPane.showMessageDialog(null, "Saved to " + filename,
"Save File", JOptionPane.PLAIN_MESSAGE);
}
catch (FileNotFoundException e) {
JOptionPane.showMessageDialog(null, "Cannot write to file: " + name,
"Error", JOptionPane.ERROR_MESSAGE);
}
}
}


private class FontListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
updateText();
}


public void updateText()
{
String name = (String) fontComboBox.getSelectedItem();

Integer size = (Integer) sizeComboBox.getSelectedItem();

int style;
if (boldCheck.isSelected() && italCheck.isSelected())
style = Font.BOLD | Font.ITALIC;
else if (boldCheck.isSelected())
style = Font.BOLD;
else if (italCheck.isSelected())
style = Font.ITALIC;
else
style = Font.PLAIN;

f = new Font(name, style, size.intValue());
sampleText.setFont(f);

}
}


public static void main(String[] args)
{

SimpleTextEditor window = new SimpleTextEditor();
window.frame.setLocationRelativeTo(null);
window.frame.setVisible(true);
}
}