C pointer principle (60)-Ncurses-text terminal graphics

We define the delete key to delete a character, the carriage return to indicate a line break, and F12 to delete the entire line, and F1 to exit.

All contents of the good AI Park blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/

Dp @ dp :~ /Cursestest % cat a. c

# Include

# Include

# Include

// Code by myhaspl@myhaspl.com

// Date: 2014/1/17

Int main (int argc, char * argv [])

{

Setlocale (LC_ALL ,"");

Initscr ();

Clear ();

Noecho ();

Cbreak ();

If (has_colors () = FALSE)

{

Endwin ();

Printf ("your terminal does not support color! \ N ");

Return (1 );

}

Start_color ();/* Start the color mechanism */

Mvprintw (5, COLS/2-10, "simple Editor-limited to single screen editing ");

Refresh ();

Init_pair (1, COLOR_GREEN, COLOR_BLACK );

WINDOW * win1;

Int width = COLS-14;

Int height = LINES-14;

Int x, y;

Win1 = newwin (height, width, 7,7); // new window (row, column, begin_y, begin_x)

Keypad (win1, TRUE );

Wattron (win1, COLOR_PAIR (1 ));

Box (win1, ACS_VLINE, ACS_HLINE );

Wrefresh (win1 );

Getyx (win1, y, x );

++ Y; ++ x;

While (1 ){

Int c = mvwgetch (win1, y, x );

Switch (c)

{

Case KEY_RIGHT:

++ X;

If (x> = width-1 ){

++ Y;

X = 1;

}

Break;

Case KEY_LEFT: -- x;

If (x <1 ){

-- Y;

X = width-2;

}

Break;

Case KEY_UP:

-- Y;

If (y <1 ){

Y = height-2;

}

Break;

Case KEY_DOWN:

++ Y;

If (y> = height-1 ){

Y = 1;

}

Break;

Case 10:

++ Y;

If (y> = height-1 ){

Y = 1;

}

Break;

Case KEY_F (1 ):

// Exit

Mvprintw (LINES-3, 2, "exit the editor? ");

Mvprintw (LINES-2, 2 ,"");

Refresh ();

Int ans = getch ();

If (ans = 'y' | ans = 'y ')

{

Mvprintw (LINES-2, 2, "Yes \ n ");

Refresh ();

Return 0;

} Else

Mvprintw (LINES-2, 2, "No \ n ");

Refresh ();

Break;

Case KEY_F (12 ):

// Delete a row

Wdeleteln (win1 );

Winsertln (win1 );

Box (win1, ACS_VLINE, ACS_HLINE );

Case KEY_DC:

// Delete a character

Mvwprintw (win1, y, x ,"");

Break;

Default:

Mvwprintw (win1, y, x, "% c", c );

++ X;

If (x> = width-1 ){

++ Y;

X = 1;

}

If (y> = height-1 ){

Y = 1;

}

Wrefresh (win1 );

}

}

Wattroff (win1, COLOR_PAIR (1 ));

Endwin ();

Return 0;

}

Run

Dp @ dp :~ /Cursestest % gcc-lncursesw a. c-o mytest

Dp @ dp :~ /Cursestest %./mytest

All contents of the good AI Park blog is original, if reproduced please indicate the source http://blog.csdn.net/myhaspl/