A simple Notepad code (ii)

/**************************************************/


//Call function


public void file_new_actionperformed (ActionEvent e) {


filenew ();


}


public void file_open_actionperformed (ActionEvent e) {


FileOpen ();


}


public void file_save_actionperformed (ActionEvent e) {


FileSave ();


}


public void file_saveto_actionperformed (ActionEvent e) {


Filesaveto ();


}


public void file_close_actionperformed (ActionEvent e) {


FileClose ();


}


public void mousereleased (MouseEvent e) {


if (E.ispopuptrigger ())


pm.show (This,e.getx (), e.gety ());


}


public void mouseclicked (MouseEvent e) {}


public void mouseentered (MouseEvent e) {}


public void mouseexited (MouseEvent e) {}


public void mousepressed (MouseEvent e) {}


boolean toexit ()


{


if (bsaved)


return true;


int I=joptionpane.showconfirmdialog (this, "Save File", "Jishiben", joptionpane.yes_no_cancel_option);


switch (i)


{


Case Joptionpane.yes_option:


return true;


Case Joptionpane.no_option:


return false;


Case Joptionpane.cancel_option:


return false;


Default:


return false;


}


}


//Call File New


void FileNew ()


{


if (bsaved) {


This.jTextArea1.setText ("");


this.jTextArea1.setFocusable (TRUE);


this.settitle ("unnamed");


This.statubar.setText ("new text");


}


else Filesaveto ();


}


Call File Open


void FileOpen ()


{


String strfileopen= "";


if (bsaved) {


try{


if (This.jfilechooser.approve_option==this.jfilechooser.showopendialog (this)) {


strfileopen=this.jfilechooser.getselectedfile (). GetPath ();


file File=new file (Strfileopen);


int flength= (int) file.length ();


int num=0;


filereader freader=new filereader (file);


char[] Data=new char[flength];


while (Freader.ready ()) {


Num+=freader.read (Data,num,flength-num);


}


Freader.close ();


Jtextarea1.settext (New String (Data,0,num));


Filename=strfileopen;


this.settitle (filename);


Statubar.settext ("Open:" +filename);


Updatefname ();


Bsaved=false;


}


Else


return;


}catch (Exception e) {


statubar.settext ("Error Open:" +e.getmessage ());


}


}


Else


FileSave ();


}


//Invoke Save dialog box


boolean filesave ()


{


if (filename==null) {


return Filesaveto ();


}


if (!bsaved) {


if (filename.length ()!=0) {


try{


file Savefile=new file (filename);


FileWriter fw=new FileWriter (savefile);


Fw.write (Jtextarea1.gettext ());


Fw.close ();


statubar.settext ("Save file:" +filename);


bsaved=true;


Updatefname ();


}catch (Exception e)


{


statubar.settext ("Save Error:" +e.getmessage ());


}


}


else{


return Filesaveto ();


}


}


return true;


}


//Call Save dialog box


boolean Filesaveto ()


{


if (Jfilechooser.approve_option==jfilechooser.showsavedialog (this)) {


filename=jfilechooser.getselectedfile (). GetPath ();


return FileSave ();


}


else{


return false;


}


}


//Change title


void Updatefname () {


String str;


if (filename==null) {


str= "no title";


}


else{


Str=filename;


}


if (!bsaved) {


str= "Notepad" +STR;


}


this.settitle (str);


This.repaint ();


}


//File Close


void FileClose () {


if (!bsaved) {


if (Toexit ()) {


FileSave ();


}


else {


system.exit (0);


}


}


else{


system.exit (0);


}


}


//Call Edit cut


void Filecut (ActionEvent e)


{


try{


String Str=this.jtextarea1.getselectedtext ();


if (str.length ()!=0) {


stringselection s = new stringselection (str);


cb.setcontents (s,s);


This.jTextArea1.replaceRange ("", This.jTextArea1.getSelectionStart (), this.jTextArea1.getSelectionEnd ());


bsaved =false;


}


}catch (Exception ex) {


this.statubar.setText ("Cut Error:" +ex.getmessage ());


}


}


//Invoke Edit replication


void FileCopy (ActionEvent e)


{


try{


String Str=this.jtextarea1.getselectedtext ();


if (str.length ()!=0) {


stringselection s = new stringselection (str);


cb.setcontents (s,s);


}


}catch (Exception ex)


{


This.statubar.setText ("Error copying!") +ex.getmessage ());


}


}


//Invoke Edit paste


void Filepaste (ActionEvent e)


{


Try


{


Transferable tr =cb.getcontents (this);


if (tr!= null)


{


string s = (string) tr.gettransferdata (Dataflavor.stringflavor);


if (s!=null)


Jtextarea1.replacerange (S,jtextarea1.getselectionstart (), Jtextarea1.getselectionend ());


//this.jtextarea1.insert (S,this.jtextarea1.getcaretposition ());


bsaved =false;


}


}


catch (Exception err)


{


Err.printstacktrace ();


}


}


Invoke edit Delete


void Filedel (ActionEvent e)


{


Jtextarea1.replacerange ("", Jtextarea1.getselectionstart (), Jtextarea1.getselectionend ());


bsaved =false;


}


//Call Edit Lookup


void Filefindnext (ActionEvent e)


{


new Frame1 (JTEXTAREA1);


}


//Time


void Filetime (ActionEvent e) {


SimpleDateFormat sdf = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");


jtextarea1.append ("Current Time:" +sdf.format (New Date ());


bsaved =false;


}


//Select all


void Allselect (ActionEvent e) {


Jtextarea1.setselectionstart (0);


Jtextarea1.setselectionend (This.jTextArea1.getText (). Length ());


}


//Line Change


void Fileline (ActionEvent e) {


if (!jtextarea1.getlinewrap ()) {


Jtextarea1.setlinewrap (TRUE);


}


else{


Jtextarea1.setlinewrap (FALSE);


}


}//Problem


//Color


public void Fcolor (ActionEvent e) {


Color Bcolor=jtextarea1.getforeground ();


Jcolor.setcolor (Bcolor);


Jtextarea1.setforeground (


Jcolor.showdialog (jTextArea1, "Select Color", Bcolor));


}


//Call About dialog box


void Helpaboutdialog (ActionEvent e)


{


Joptionpane.showmessagedialog (This, "Copyright: Keel failure ...", "About Notepad", joptionpane.information_message);


}