text editor.txt

A simple Java Based Text Editor

                  public void actionPerformed(ActionEvent ae)
                  {
                   System.exit(0);
                  }
          }
  void readFile()
          {
                  BufferedReader d;
                  StringBuffer sb=new StringBuffer();
                  try{
                      d=new BufferedReader(new FileReader(filename));
                      String line;
                      while((line=d.readLine())!=null)
                       sb.append(line+"
");
                       txt.setText(sb.toString());
                       d.close();
                       }catch(FileNotFoundException e){
                         System.out.println("File not found");
                       }catch(IOException e){ }
          }

public void writeFile()
            {
             try{
                 DataOutputStream d=new DataOutputStream(new
FileOutputStream(filename));
                 String line=txt.getText();
                 BufferedReader br=new BufferedReader(new
StringReader(line));
                 while((line=br.readLine())!=null)
                    {
                     d.writeBytes(line+"
");
                    }d.close();
                 }catch(Exception e){
                   System.out.println("File not found");
                   }
          }
 class Cut implements ActionListener
         {
          public void actionPerformed(ActionEvent ae)
                  {
                   String sel=txt.getSelectedText();
                   StringSelection ss=new StringSelection(sel);
                   clip.setContents(ss,ss);
                   txt.replaceRange("
",txt.getSelectionStart(),txt.getSelectionEnd());
                  }
         }
 class Copy implements ActionListener
         {
          public void actionPerformed(ActionEvent ae)
                  {
                   String sel=txt.getSelectedText();
                   StringSelection clipstring=new StringSelection(sel);
                   clip.setContents(clipstring,clipstring);
                  }
         }
 class Paste implements ActionListener
         {
          public void actionPerformed(ActionEvent ae)
                  {
                   Transferable
cliptran=clip.getContents(TextEditor.this);
                   try{
                   String
sel=(String)cliptran.getTransferData(DataFlavor.stringFlavor);

txt.replaceRange(sel,txt.getSelectionStart(),txt.getSelectionEnd());
                  }catch(Exception e){
                    System.out.println("not starting flavor");
                  }
                 }
         }
 class Win extends WindowAdapter
        {
         public void windowClosing(WindowEvent we)
                 {

               ConfirmDialog cd=new ConfirmDialog();
               if(!b)
               {
                System.exit(0);
               }
                 }
         }



 class ConfirmDialog extends JPanel
   {
     public ConfirmDialog()
       {
          int result;
          result=JOptionPane.showConfirmDialog(this,fn+" not saved do you
want to save"/*,"Message Box",JOptionPane.QUESTION_MESSAGE*/);
           switch(result)
           {
           case JOptionPane.YES_OPTION:
                        FileDialog fd=new FileDialog(TextEditor.this,"Save
File",FileDialog.SAVE);
               fd.setFile(fn);
               fd.setDirectory(dn);
               fd.show();
               if(fd.getFile()!=null)
                {
                 filename=fd.getDirectory()+fd.getFile();
                 setTitle(filename);
                 writeFile();
                 txt.requestFocus();
                }
               System.out.println("Yes button pressed");
               break;
           case JOptionPane.NO_OPTION:
                dispose();
            System.exit(0);
            System.out.println("NO button pressed");
              break;
           case JOptionPane.CANCEL_OPTION:
              setVisible(true);
            //b=false;
            repaint();
               System.out.println("Cancel button pressed");
               break;
          case JOptionPane.CLOSED_OPTION:
              System.out.println("Closed button pressed");
              break;
         }
      }
  }

 class Size implements ActionListener
 {
     public void actionPerformed(ActionEvent e)
         {
            int style=f.getStyle();
          String w=e.getActionCommand();
          if(w=="10")
           {
                f= new Font("Courier",style,10);
                txt.setFont(f);
                fsize=f.getSize();
                repaint();
           }
          if(w=="12")
           {
                 f= new Font("Courier",style,12);
                 fsize=f.getSize();
                 txt.setFont(f);
                 repaint();
           }
          if(w=="14")
           {
                 f= new Font("Courier",style,14);
                 fsize=f.getSize();
                 txt.setFont(f);
                 repaint();
           }
          if(w=="16")
           {
                f= new Font("Courier",style,16);
                txt. setFont(f);
                fsize=f.getSize();
                repaint();
           }
          if(w=="18")
            {
                 f= new Font("Courier",style,18);
                 txt.setFont(f);
                 fsize=f.getSize();
                 repaint();
            }
          if(w=="20")
            {
                 f= new Font("Courier",style,20);
                 txt.setFont(f);
                 fsize=f.getSize();
                 repaint();
            }
          if(w=="22")
            {
                 f= new Font("Courier",style,22);
                 txt.setFont(f);
                 fsize=f.getSize();
                 repaint();
            }
          if(w=="24")
            {
                 f= new Font("Courier",style,24);
                 txt.setFont(f);
                 fsize=f.getSize();
                 repaint();
            }
          if(w=="26")
            {
                 f= new Font("Courier",style,26);
                 txt.setFont(f);
                 fsize=f.getSize();
                 repaint();
            }

          if(w=="28")
            {
                 f= new Font("Courier",style,28);
                 txt.setFont(f);
                 fsize=f.getSize();
                 repaint();
            }


         }
 }
 class FM  extends Applet implements ActionListener
  {
       public void actionPerformed(ActionEvent e)
         {
              String b=e.getActionCommand();
               if(b=="Bold")
               {
                  f= new Font("Courier",Font.BOLD,fsize);
                 style=f.getStyle();
                 txt.setFont(f);
               }
              if(b=="Plain")
               {
                  f= new Font("Courier",Font.PLAIN,fsize);
                 style=f.getStyle();
                 txt.setFont(f);
               }

              if(b=="Italic")
               {
                 f= new Font("Courier",Font.ITALIC,fsize);
                txt.setFont(f);
               }
               repaint();
         }
  }

 class Type implements ActionListener
  {
   public void actionPerformed(ActionEvent e)
    {
      String lbl=e.getActionCommand();
      if(lbl=="TimesRoman")
       {
        f=new Font("TimesRoman",style,fsize);
        txt.setFont(f);
       }
      if(lbl=="Courier")
       {
        f=new Font("Courier",style,fsize);
        txt.setFont(f);
       }
      if(lbl=="Helvetica")
       {
        f=new Font("Helvetica",style,fsize);
        txt.setFont(f);
       }
      if(lbl=="Arial")
       {
        f=new Font("Arial",style,fsize);
        txt.setFont(f);
       }
      if(lbl=="Arial Black")
       {
        f=new Font("ArialBlack",style,fsize);
        txt.setFont(f);
       }
      if(lbl=="Century")
       {
        f=new Font("Century",style,fsize);
        txt.setFont(f);
       }

      repaint();
    }
  }


   class BC implements ActionListener
      {
         public void actionPerformed(ActionEvent e)
            {
                st=e.getActionCommand();
                JFrame jf=new JFrame("JColorChooser");
                 colorChooser c=new colorChooser();
                 c.setSize(400,300);
                   c.setVisible(true);
            }
      }


    class colorChooser extends JFrame
      {
             Button ok;
             JColorChooser jcc;
             public colorChooser(){
             setTitle("JColorChooser");
             jcc=new JColorChooser();
             JPanel content=(JPanel)getContentPane();
             content.setLayout(new BorderLayout());
             content.add(jcc,"Center");
             ok=new Button("OK");
             content.add(ok,"South");
             ok.addActionListener(new B());
       }

    class B implements ActionListener
       {
         public void actionPerformed(ActionEvent e)
         {
         System.out.println("Color Is:"+jcc.getColor().toString());
         if(st.equals("Background"))
         txt.setBackground(jcc.getColor());
         if(st.equals("Foreground"))
         txt.setForeground(jcc.getColor());
         setVisible(false);
           }
      }
}

 public static void main(String args[])
         {
                 Frame fm=new TextEditor();
                 fm.setSize(800,600);
                 fm.setVisible(true);
                 fm.show();
         }
 }