static bool
handle_input(DIALOG_CALLBACK * cb)
{
MY_OBJ *obj = (MY_OBJ *) cb;
bool result;
int status;
char buf[MY_LEN];
if (dialog_state.pipe_input == 0) {
status = -1;
} else if ((status = read_data(buf, dialog_state.pipe_input)) > 0) {
if (isMarker(buf)) {
/*
* Historically, next line should be percentage, but one of the
* worse-written clones of 'dialog' assumes the number is missing.
* (Gresham's Law applied to software).
*/
if ((status = read_data(buf, dialog_state.pipe_input)) > 0) {
obj->prompt_buf[0] = '\0';
if (decode_percent(buf))
obj->percent = atoi(buf);
else
strcpy(obj->prompt_buf, buf);
/* Rest is message text */
while ((status = read_data(buf, dialog_state.pipe_input)) > 0
&& !isMarker(buf)) {
if (strlen(obj->prompt_buf) + strlen(buf) <
sizeof(obj->prompt_buf) - 1) {
strcat(obj->prompt_buf, buf);
}
}
if (obj->prompt != obj->prompt_buf)
free(obj->prompt);
obj->prompt = obj->prompt_buf;
}
} else if (decode_percent(buf)) {
obj->percent = atoi(buf);
}
} else {
if (feof(dialog_state.pipe_input) ||
(ferror(dialog_state.pipe_input) && errno != EINTR)) {
delink(obj);
dlg_remove_callback(cb);
}
}
if (status > 0) {
result = TRUE;
repaint_text(obj);
} else {
result = FALSE;
}
return result;
}
/*
* Display a gauge, or progress meter. Starts at percent% and reads stdin. If
* stdin is not XXX, then it is interpreted as a percentage, and the display is
* updated accordingly. Otherwise the next line is the percentage, and
* subsequent lines up to another XXX are used for the new prompt. Note that
* the size of the window never changes, so the prompt can not get any larger
* than the height and width specified.
*/
int
dialog_gauge(const char *title,
const char *prompt,
int height,
int width,
int percent)
{
int i, x, y;
char buf[MY_LEN];
char prompt_buf[MY_LEN];
WINDOW *dialog;
auto_size(title, prompt, &height, &width, MIN_HIGH, MIN_WIDE);
print_size(height, width);
ctl_size(height, width);
/* center dialog box on screen */
x = box_x_ordinate(width);
y = box_y_ordinate(height);
dialog = new_window(height, width, y, x);
curs_set(0);
do {
(void) werase(dialog);
draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
draw_title(dialog, title);
wattrset(dialog, dialog_attr);
print_autowrap(dialog, prompt, height, width - (2 * MARGIN));
draw_box(dialog,
height - 4, 2 + MARGIN,
2 + MARGIN, width - 2 * (2 + MARGIN),
dialog_attr,
border_attr);
(void) wmove(dialog, height - 3, 4);
wattrset(dialog, title_attr);
for (i = 0; i < (width - 2 * (3 + MARGIN)); i++)
(void) waddch(dialog, ' ');
wattrset(dialog, title_attr);
(void) wmove(dialog, height - 3, (width / 2) - 2);
(void) wprintw(dialog, "%3d%%", percent);
x = (percent * (width - 2 * (3 + MARGIN))) / 100;
wattrset(dialog, A_REVERSE);
(void) wmove(dialog, height - 3, 4);
for (i = 0; i < x; i++)
(void) waddch(dialog, winch(dialog));
(void) wrefresh(dialog);
if (read_data(buf, pipe_fp) == 0)
break;
if (isMarker(buf)) {
/*
* Historically, next line should be percentage, but one of the
* worse-written clones of 'dialog' assumes the number is missing.
* (Gresham's Law applied to software).
*/
if (read_data(buf, pipe_fp) == 0)
break;
prompt_buf[0] = '\0';
if (decode_percent(buf))
percent = atoi(buf);
else
strcpy(prompt_buf, buf);
/* Rest is message text */
while (read_data(buf, pipe_fp) != 0
&& !isMarker(buf)) {
if (strlen(prompt_buf) + strlen(buf) < sizeof(prompt_buf) - 1) {
strcat(prompt_buf, buf);
}
}
prompt = prompt_buf;
} else if (decode_percent(buf)) {
percent = atoi(buf);
}
} while (1);
curs_set(1);
del_window(dialog);
return (DLG_EXIT_OK);
}
