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/******************************************************************************
* to emulate the serial input and output of an 8051 controller *
* frontend.cc - the ncurses frontend *
******************************************************************************/
#include <sys/types.h>
#include <iostream>
#include <stdlib.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <curses.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "frontend.hh"
Viewer::Viewer()
{
/* initalise the output screen */
initscr();
cbreak();
noecho();
nl();
intrflush(stdscr,FALSE);
keypad(stdscr, TRUE);
/* clear the screen and off you go */
refresh();
// get the coordinates for the box
/* create the subwindow */
win_c.min_x = win_c.min_y = 0;
getmaxyx(stdscr, win_c.max_y, win_c.max_x);
/* define the boxed size */
topleft.x = win_c.min_x + 1;
bottomright.x = win_c.max_x - 2;
topleft.y = win_c.min_y + 1;
bottomright.y = win_c.max_y - 2;
middle_y = (int)((bottomright.y-topleft.y)/2)+1;
middle_x = (int)((bottomright.x-topleft.x)/2)+1;
// draw the two subwindows
inp_c.min_x = outp_c.min_x = topleft.x;
inp_c.max_x = outp_c.max_x = bottomright.x;
inp_c.min_y = topleft.y;
inp_c.max_y = middle_y-topleft.y;
outp_c.min_y = middle_y+1;
outp_c.max_y = bottomright.y-middle_y;
inp = subwin(stdscr, inp_c.max_y, inp_c.max_x, inp_c.min_y, inp_c.min_x);
outp = subwin(stdscr, outp_c.max_y, outp_c.max_x, outp_c.min_y,outp_c.min_x);
// initalise the windows
touchwin(inp);
werase(inp);
wrefresh(inp);
scrollok(inp, TRUE);
touchwin(outp);
werase(outp);
wrefresh(outp);
scrollok(outp, TRUE);
refresh();
nodelay(inp, TRUE);
// flush the input buffers
flushinp();
move(topleft.x,topleft.y);
DrawBox();
}
Viewer::~Viewer()
{
delwin(inp);
delwin(outp);
erase();
refresh();
endwin();
}
void Viewer::DrawBox(void)
{
int height, width;
COORDINATES current;
// save the current position
getyx(stdscr, current.y, current.x);
height = (bottomright.y - topleft.y)+1;
width = (bottomright.x - topleft.y)+1;
mvaddch(topleft.y-1, topleft.x-1, ACS_ULCORNER);
mvaddch(topleft.y-1, bottomright.x+1, ACS_URCORNER);
mvaddch(bottomright.y+1, bottomright.x+1, ACS_LRCORNER);
mvaddch(bottomright.y+1, topleft.x-1, ACS_LLCORNER);
/* wmove (screen, y, x) */
/* top */
move(topleft.y-1, topleft.x);
hline(ACS_HLINE, width);
/* bottom */
move(bottomright.y+1, topleft.x);
hline(ACS_HLINE, width);
move(bottomright.y+1, topleft.x);
hline(ACS_HLINE, width);
/* left */
move(topleft.y, topleft.x-1);
vline(ACS_VLINE, height);
/* right */
move(topleft.y, bottomright.x+1);
vline(ACS_VLINE, height);
/* the divider */
mvaddch(middle_y, bottomright.x+1, ACS_RTEE);
mvaddch(middle_y, topleft.x-1, ACS_LTEE);
hline(ACS_HLINE, width);
// the window titles
mvaddstr(inp_c.min_y-1, middle_x-(strlen("Input")/2), "Input");
mvaddstr(middle_y, middle_x-(strlen("Output")/2), "Output");
move(current.y, current.x);
refresh();
}
void Viewer::AddStrOutWin(char *string)
{
waddstr(outp, string);
wrefresh(outp);
}
void Viewer::GetStrInWin(char *string)
{
if(wgetstr(inp, string) == ERR) {
string[0] = 0;
} else {
waddstr(inp, string);
wrefresh(inp);
}
}
void Viewer::AddChOutWin(char b)
{
waddch(outp, b);
wrefresh(outp);
}
char Viewer::GetChInWin(void)
{
int b = wgetch(inp);
if(b==ERR) {
b=0;
} else {
waddch(inp, (chtype)b);
wrefresh(inp);
}
return((char)b);
}
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