import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.applet.Applet;
import java.util.*;

class TekstiRedaktor extends JApplet implements ActionListener, KeyListener
{
      JMenuItem menuOpen, menuSave, menuSaveAs, menuExit, menuBlack, menuBlue, menuRed;
	  JTextArea editArea, textField4;
	  JTextField textField1, textField2;
	  String fileName="";

	  
	  TekstiRedaktor()
	  {
// siin on ülemine osa - menubar
	   	  JMenuBar menubar=new JMenuBar();
		  setJMenuBar(menubar);
		  JMenu menuFile=new JMenu("File", false);		   // File menüü
		  menubar.add(menuFile);
		  menuOpen=new JMenuItem("Open");
		  menuSave=new JMenuItem("Save");
		  menuSaveAs=new JMenuItem("Save As");
		  menuExit=new JMenuItem("Exit");
		  menuFile.add(menuOpen);
		  menuFile.add(menuSave);
		  menuFile.add(menuSaveAs);
		  menuFile.addSeparator();
		  menuFile.add(menuExit);
		  JMenu menuFont=new JMenu("Font", false); 	   // Font menüü
		  menubar.add(menuFont);		  
		  menuBlack=new JMenuItem("Black");
		  menuBlue=new JMenuItem("Blue");
		  menuRed=new JMenuItem("Red");
		  menuFont.add(menuBlack);
		  menuFont.add(menuBlue);
		  menuFont.add(menuRed);
// siin algab keskmine osa ehk tekstiredaktori väli, kuhu saab oma teksti kirjutada		  
		  JPanel panel=new JPanel();
		  panel.setLayout(new BorderLayout());
		  editArea=new JTextArea();
		  getContentPane().add(panel, "Center");	  
		  editArea.setFont(new Font("Sans Serif", Font.PLAIN, 14));
		  editArea.setForeground(Color.black);
		  editArea.setLineWrap(true);
		  editArea.setWrapStyleWord(true);
		  editArea.setEditable(true);
		  JScrollPane areaScrollPanel=new JScrollPane(editArea);
		  areaScrollPanel.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
		  areaScrollPanel.setPreferredSize(new Dimension(600, 400));
		  areaScrollPanel.setBorder(BorderFactory.createTitledBorder("Print here"));
		  panel.add(areaScrollPanel);
// siin algab nö. 'statusbar' - kus on info tekstifaili kohta  		  
		  textField1=new JTextField(4);			// sümbolite arv
		  textField2=new JTextField(4);			// sõnade arv
  		  textField4=new JTextArea("");	          	// lahti oleva tekstifaili nimi	  
		  textField1.setBackground(Color.white);
		  textField4.setBackground(new Color(204,204,204));				  
		  JPanel panel2=new JPanel();
		  panel2.setLayout(new FlowLayout(FlowLayout.LEFT, 15, 0));
		  panel2.add(textField1);
		  panel2.add(textField2);
		  panel2.add(textField4);			    
		  panel.add(panel2, BorderLayout.SOUTH);
			  
		  menuOpen.addActionListener(this);
		  menuSave.addActionListener(this);
		  menuSaveAs.addActionListener(this);
		  menuExit.addActionListener(this);
		  menuBlack.addActionListener(this);
		  menuBlue.addActionListener(this);
		  menuRed.addActionListener(this);
		  textField1.addActionListener(this);
		  textField2.addActionListener(this);	
          	  editArea.addKeyListener(this); 		    
	  } // end of TekstiRedaktor
	  
	  
	  public void actionPerformed(ActionEvent event)
	  {
	      Object source=event.getSource();
		  String returned=null;
		  FileInputStream in=null;
		  FileOutputStream out=null;
		  String selectedValue;

		  
// faili avamine		  
		  if(source == menuOpen){
   // dialoogiakna algus		  
	      try{
		 	 selectedValue=JOptionPane.showInputDialog(null, "Please write the file name!");
			 fileName=selectedValue.toString();
		  }
		  catch(NullPointerException npe)
		  {}
   // dialoogiakna lõpp
			 try{
			 	 File inputFile=new File(fileName);
				 in=new FileInputStream(inputFile);
				 byte bt[]=new byte[(int)inputFile.length()];
				 in.read(bt);
				 String s=new String(bt);
				 editArea.setText(s);
			 	 textField4.setText(fileName);
			 }
			 catch(IOException ez){
   				 JOptionPane.showMessageDialog(null, "Cannot find or read this file!");
			 }
			 
			   if(in!=null){
			      try{
				    in.close();
				  }
				  catch(IOException ew){
				  }
			   } 
		  } // endif menuOpen

// faili jooksev salvestamine	  
		  if(source==menuSave)
		  {
		     returned=editArea.getText();
			 if(returned!=null)
			 {

			    try
				{
				   byte b[]=returned.getBytes();
				   out=new FileOutputStream(fileName);
				   out.write(b);
 			 	   textField4.setText(fileName);				   
				}
				catch(IOException ex)
				{}
				
				  if(out!=null)
				  {
				      try
					  {
					     out.close();
					  }
					  catch(IOException ey)
					  {}
				  }
			 } // endif returned!
			 else
			 {
				JOptionPane.showMessageDialog(null, "There is no text to save!");
			 } // endif else returned! 
		  } // endif menuSave	  

// uue faili salvestamine	  
		  if(source==menuSaveAs)
		  {
		     returned=editArea.getText();
			 if(returned!=null)
			 {
			 		 
// dialoogiakna algus		  
	         try{
		 	     selectedValue=JOptionPane.showInputDialog(null, "Please write the file name!");
			     fileName=selectedValue.toString();
		     }
		     catch(NullPointerException npe)
		     {}
// dialoogiakna lõpp

			    try
				{
				   byte b[]=returned.getBytes();
				   out=new FileOutputStream(fileName);
				   out.write(b);
 			 	   textField4.setText(fileName);				   
				}
				catch(IOException ex)
				{}
				
				  if(out!=null)
				  {
				      try
					  {
					     out.close();
					  }
					  catch(IOException ey)
					  {}
				  }
			 } // endif returned!
			 else
			 {
				JOptionPane.showMessageDialog(null, "There is no text to save!");
			 } // endif else returned! 
		  } // endif menuSaveAs

		  
// tekstiredakorist väljumine		  
		  if(source == menuExit){
		  	int replay=JOptionPane.showConfirmDialog(null, "Are You sure, You want to exit?");
	   
	          	switch(replay)
	         	{
	   		 	case JOptionPane.YES_OPTION:
				                            System.exit(0);
	   		        case JOptionPane.NO_OPTION:
					                    break;
				case JOptionPane.CANCEL_OPTION:
					 		    break;                                 				
	          	} // end switch
	  	  } // endif menuExit

// teksti värvide vahetamine		 
		  if(source == menuBlack)
				editArea.setForeground(Color.black);
		  if(source == menuBlue)
				editArea.setForeground(Color.blue);
		  if(source == menuRed)
				editArea.setForeground(Color.red);							   
				
	  } // end of void actionPerformed

	  

// tähtede ja sõnade kokkulugemine
          public void keyPressed(KeyEvent e){}
          public void keyReleased(KeyEvent e){

	  	int charCount=0;
   	  	charCount = editArea.getDocument().getLength();
				 
    		String rida=editArea.getText();
    		StringTokenizer st=new StringTokenizer(rida, " ");
	  	int wordCount=0;
    		while(st.hasMoreTokens()){
      		   String sona=st.nextToken();
        	   wordCount=wordCount+1;
    		}

				 
				 try 
				 {
				  	 textField1.setText(String.valueOf(charCount));
					 textField2.setText(String.valueOf(wordCount));
				 } catch (NullPointerException npe) {
				         System.out.println("keyReleased:npe");
				 }
				 
 	  }
          public void keyTyped(KeyEvent e){}
// tähtede kokkulugemise lõpp
  
	  
      public static void main(String[] args)
	  {
	     JFrame frame= new JFrame("H2T tekstiredaktor");
		 frame.getContentPane().add(new TekstiRedaktor());
		 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		 frame.pack();
		 frame.setVisible(true);
	  } // end of public static void

} // end of class TekstiRedaktor