Thread: ncurses scrollok scrolling contents of Pad up & down

You know, an actual compilable example would be a bonus, so we all don't have to go and independently read all about ncurses pads, and try to guess what "text_buffer is continuously refreshing" means (not to mention all the other stuff you've left out).

After toying around with this for a few months I finally ended up with a desired solution.

Code:

void update_pad(void *V)
{
    WIN *v = V;
    unsigned int i, ypos, xpos;
    int key;
    
    while((key = wgetch(v->p)) != 'q')
    {
        if(v->buffer[0] != '\0')
        {
            waddstr(v->p, v->buffer);
            v->buffer[0] = '\0';
            
            getyx(v->p, ypos, xpos);        /* Get the cursor position */
            
            if(ypos > v->starty + v->height - 1)
                v->row = ypos - (v->starty + v->height - 1);
        }

        wrefresh(v->w);
        prefresh(v->p, 
            v->row, 0,                        /* pmin        */
            v->starty, v->startx,             /* smin        */
                                            /* smax        */
            v->starty + v->height - 1, v->startx + v->width - 1);
        
        if(key == KEY_UP)
        {
            v->row -= 2;
            if(v->row < 0) v->row = -1;
        }
        
        if(key == KEY_DOWN) 
            v->row += 1;
            
        if(key == KEY_RESIZE)
        {
            getmaxyx(stdscr, v->rows, v->cols);
             v->height     = v->rows - 4 * LENGTH(Instr) - 1;
             v->width     = v->cols;
             delwin(v->w);
             v->w        = create_newwin(4 * LENGTH(Instr) + 1, v->width, v->height, 0);
        }
    }
    
    quit = true;
}

Of-course in conjunction with:

Code:

void init_display(WIN *v)
{
    initscr();
    raw();
    noecho();
    curs_set(0);            /* Hide the cursor */
     
    getmaxyx(stdscr, v->rows, v->cols);
    
    v->startx = v->starty = 0;
    v->height = v->rows - 4 * LENGTH(Instr) - 1;
    v->width = v->cols;
    v->row = 0;
        
    v->w = create_newwin(4 * LENGTH(Instr) + 1, v->width, v->height, 0);
    v->p = newpad(ARRAY_SIZE, v->width);
    
    /* leaveok(v->p, TRUE);     Show the hardware cursor moving */
    keypad(v->p, TRUE);
    nodelay(v->p, TRUE);
    scrollok(v->p, TRUE);
     
    v->buffer[0] = '\0';
}