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gb.ncurses: allow stepping out of and into ncurses mode

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[GB.NCURSES]
* NEW: Screen.Suspend and Screen.Resume are two new methods which
  allow to temporarily leave ncurses mode, restoring the original
  tty settings, and to come back, restoring ncurses's tty settings
  and screen content.
This commit is contained in:
Tobias Boege 2021-01-04 17:16:23 +01:00
parent a514b8a676
commit df5022e383
2 changed files with 22 additions and 0 deletions
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21
gb.ncurses/src/c_screen.c
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@ -68,6 +68,8 @@ void SCREEN_refresh()
{ {
if (!NCURSES_RUNNING) if (!NCURSES_RUNNING)
return; return;
if (THIS->suspended)
return;
update_panels(); update_panels();
doupdate(); doupdate();
} }
@ -99,6 +101,7 @@ static void CSCREEN_echo(CSCREEN *scr, int mode)
BEGIN_METHOD_VOID(Screen_new) BEGIN_METHOD_VOID(Screen_new)
THIS->suspended = 0;
CSCREEN_cursor(THIS, 1); CSCREEN_cursor(THIS, 1);
CSCREEN_echo(THIS, 1); CSCREEN_echo(THIS, 1);
INPUT_mode(THIS, INPUT_CBREAK); INPUT_mode(THIS, INPUT_CBREAK);
@ -182,6 +185,21 @@ BEGIN_METHOD(Screen_Resize, GB_INTEGER lines; GB_INTEGER cols)
END_METHOD END_METHOD
BEGIN_METHOD_VOID(Screen_Suspend)
THIS->suspended = 1;
def_prog_mode();
endwin();
END_METHOD
BEGIN_METHOD_VOID(Screen_Resume)
THIS->suspended = 0;
doupdate();
END_METHOD
GB_DESC CCursorDesc[] = { GB_DESC CCursorDesc[] = {
GB_DECLARE("Cursor", 0), GB_DECLARE("Cursor", 0),
GB_NOT_CREATABLE(), GB_NOT_CREATABLE(),
@ -259,6 +277,9 @@ GB_DESC CScreenDesc[] = {
GB_STATIC_METHOD("Refresh", NULL, Screen_Refresh, NULL), GB_STATIC_METHOD("Refresh", NULL, Screen_Refresh, NULL),
GB_STATIC_METHOD("Resize", NULL, Screen_Resize, "(Lines)i(Cols)i"), GB_STATIC_METHOD("Resize", NULL, Screen_Resize, "(Lines)i(Cols)i"),
GB_STATIC_METHOD("Suspend", NULL, Screen_Suspend, NULL),
GB_STATIC_METHOD("Resume", NULL, Screen_Resume, NULL),
GB_STATIC_PROPERTY("Cursor", "i", Screen_Cursor), GB_STATIC_PROPERTY("Cursor", "i", Screen_Cursor),
GB_STATIC_PROPERTY("Echo", "b", Screen_Echo), GB_STATIC_PROPERTY("Echo", "b", Screen_Echo),
GB_STATIC_PROPERTY("Input", "i", Screen_Input), GB_STATIC_PROPERTY("Input", "i", Screen_Input),

1
gb.ncurses/src/c_screen.h
View file

@ -40,6 +40,7 @@ typedef struct {
int cursor; int cursor;
int input; int input;
int buffered; int buffered;
int suspended;
} CSCREEN; } CSCREEN;
int SCREEN_init(); int SCREEN_init();