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program form_test_2;
{$MODE OBJFPC}
uses
ncurses, form, libc;
var
my_bg: Smallint = COLOR_BLACK;
field: array[0..5] of PFIELD;
my_form: PFORM;
i, ch: Longint;
begin
try
setlocale(LC_ALL, ''); { Tested with Russian UTF-8 locale }
(* Initialize curses *)
initscr();
cbreak();
noecho();
keypad(stdscr, TRUE);
(* Initialize colors *)
if has_colors() then
begin
start_color();
if (use_default_colors() = OK) then
my_bg := -1
else
my_bg := COLOR_BLACK;
init_pair(1, COLOR_YELLOW, my_bg);
init_pair(2, COLOR_MAGENTA, my_bg);
init_pair(3, COLOR_WHITE, my_bg);
init_pair(4, COLOR_WHITE, COLOR_BLUE);
init_pair(5, COLOR_WHITE, COLOR_GREEN);
init_pair(6, COLOR_YELLOW, COLOR_GREEN);
init_pair(7, COLOR_BLACK, COLOR_CYAN);
end;
(* Initialize the fields *)
for i := 0 to 3 do
begin
field[i] := new_field(1, 30, 2 + i * 2, 10, 0, 0);
field_opts_off(field[i], O_AUTOSKIP);
end;
field[4] := new_field(7, 30, 2, 42, 0, 0);
field[5] := nil;
(* Set field options *)
set_field_fore(field[0], COLOR_PAIR(2));
set_field_back(field[0], A_UNDERLINE OR COLOR_PAIR(3));
set_field_fore(field[1], COLOR_PAIR(1));
set_field_back(field[1], A_UNDERLINE OR COLOR_PAIR(1));
field_opts_off(field[1], O_ACTIVE);
set_field_fore(field[2], COLOR_PAIR(4));
set_field_back(field[2], A_UNDERLINE OR COLOR_PAIR(4));
field_opts_off(field[2], O_PUBLIC);
set_field_fore(field[3], COLOR_PAIR(5));
set_field_back(field[3], A_UNDERLINE OR COLOR_PAIR(5));
field_opts_off(field[3], O_STATIC);
set_field_fore(field[4], COLOR_PAIR(7));
set_field_back(field[4], COLOR_PAIR(7));
(* Create the form and post it *)
my_form := new_form(field);
post_form(my_form);
(* Center Justification *)
set_field_just(field[0], JUSTIFY_CENTER);
set_field_buffer(field[0], 0, 'This is a static Field');
set_field_just(field[1], JUSTIFY_CENTER);
set_field_buffer(field[1], 0, 'This is a inactive Field');
(* Set focus to the blue field *)
set_current_field(my_form, field[0]);
for i := 0 to 3 do
mvprintw(2 + i * 2, 2, 'Value %d:', i + 1);
mvaddstr(LINES - 2, 0, 'F1 to Exit');
refresh();
(* Loop through to get user requests *)
ch := getch();
while (ch <> KEY_F(1)) AND (ch <> 27) do
begin
case ch of
9: { TAB }
begin
if form_driver(my_form, REQ_NEXT_WORD) <> E_OK then
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_NEXT_FIELD);
form_driver(my_form, REQ_END_LINE);
end;
end;
KEY_NPAGE:
(* Go to next field *)
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_NEXT_FIELD);
{ Go to the end of the present buffer
Leaves nicely at the last character }
form_driver(my_form, REQ_END_LINE);
end;
KEY_PPAGE:
(* Go to previous field *)
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_PREV_FIELD);
form_driver(my_form, REQ_END_LINE);
end;
KEY_DOWN:
if form_driver(my_form, REQ_DOWN_CHAR) <> E_OK then
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_DOWN_FIELD);
form_driver(my_form, REQ_END_LINE);
end;
KEY_UP:
if form_driver(my_form, REQ_UP_CHAR) <> E_OK then
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_UP_FIELD);
form_driver(my_form, REQ_END_LINE);
end;
KEY_LEFT:
if form_driver(my_form, REQ_LEFT_CHAR) <> E_OK then
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_LEFT_FIELD);
form_driver(my_form, REQ_END_LINE);
end;
KEY_RIGHT:
if form_driver(my_form, REQ_RIGHT_CHAR) <> E_OK then
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_RIGHT_FIELD);
end;
KEY_BACKSPACE: form_driver(my_form, REQ_DEL_PREV);
10: { ENTER }
begin
form_driver(my_form, 10);
if form_driver(my_form, REQ_NEXT_LINE) <> E_OK then
begin
form_driver(my_form, REQ_VALIDATION);
form_driver(my_form, REQ_NEXT_FIELD);
form_driver(my_form, REQ_END_LINE);
end;
end;
else
{ If this is a normal character, it gets
Printed }
form_driver(my_form, ch);
end;
ch := getch();
end;
refresh();
finally
unpost_form(my_form);
free_form(my_form);
endwin();
for i := 0 to 4 do
begin
if field_status(field[i]) then
begin
writeln;
writeln('Value ', i,':');
writeln(field_buffer(field[i], 0));
end;
free_field(field[i]);
end
end;
end.
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