C pointer principle (66)-Ncurses-text terminal graphics

Modify the full-screen editor. With the support of panel, you can open three windows to edit different content and save the content of the three windows.

The effect is as follows:

<喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> Signature + signature + 9eq1NjH69eiw/Signature + Cjxicj4KPHA + signature + CjxwPns8L3A + signature + CjxwPn08L3A + signature + Signature = "");

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

Mvprintw (4, COLS/2-20, "[F9 read and save the content, F10 Save the disk, F11 exit, F12 Delete the entire row, TAB change window ]");

Refresh ();

Init_pair (1, COLOR_GREEN, COLOR_BLACK );

Init_pair (2, COLOR_BLUE, COLOR_BLACK );

Init_pair (3, COLOR_RED, COLOR_BLACK );

WINDOW * mywins [3];

PANEL * top;

PANEL * mypanels [3];

Char filename [10];

Int width = COLS-18;

Int height = LINES-18;

Int x, y;

Int begin_y = 5; int begin_x = 5;

Int I;

For (I = 0; I <3; ++ I)

{

Mywins [I] = newwin (height, width, begin_y, begin_x); // new window (row, column, begin_y, begin_x)

Keypad (mywins [I], TRUE );

Wattron (mywins [I], COLOR_PAIR (I + 1 ));

Mypanels [I] = new_panel (mywins [I]);

Box (mywins [I], ACS_VLINE, ACS_HLINE );

Wattroff (mywins [I], COLOR_PAIR (I + 1 ));

Begin_y + = 4; begin_x + = 4;

}

Set_panel_userptr (mypanels [0], mypanels [1]);

Set_panel_userptr (mypanels [1], mypanels [2]);

Set_panel_userptr (mypanels [2], mypanels [0]);

Top = mypanels [2];

Update_panels ();

Doupdate ();

Int nowwinid = 2;

Sprintf (filename, "myed % d. dat", nowwinid );

Getyx (mywins [nowwinid], y, x );

++ Y; ++ x;

Mmask_t oldmousemask;

Int ans = 0;

FILE * fp2 = NULL;

FILE * fp1 = NULL;

Mousemask (ALL_MOUSE_EVENTS, & oldmousemask );

While (1 ){

Int c = mvwgetch (mywins [nowwinid], y, x );

Switch (c)

{Case KEY_MOUSE:

If (getmouse (& event) = OK)

{/* When the user clicks left mouse button */

If (event. bstate & buttonerepressed)

{

Y = event. y-7; x = events. x-7;

Wmove (mywins [nowwinid], y, x );

}

}

Break;

Case KEY_BACKSPACE:

-- X;

If (x <1 ){

-- Y; x = width-2;

}

If (y <1 ){

Y = height-2;

}

Mvwprintw (mywins [nowwinid], y, x ,"");

Break;

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 (11 ):

// Exit

Mvprintw (LINES-3, 2 ,"");

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

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

Mvprintw (LINES-1, 2, "\ n ");

Refresh ();

Ans = getch ();

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

{

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

Refresh ();

Wattroff (mywins [nowwinid], COLOR_PAIR (1 ));

Mousemask (oldmousemask, NULL );

Endwin ();

Return 0;

} Else

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

Refresh ();

Break;