X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_newwin.c;h=7d3b02bead4a8123041c1788728c3c4b07f151ba;hp=ba516337b99634ca051f4342980a6efb575bbccf;hb=26522e4669dbf45cba32138b5d81c6c292e88e60;hpb=027ae42953e3186daed8f3882da73de48291b606 diff --git a/ncurses/base/lib_newwin.c b/ncurses/base/lib_newwin.c index ba516337..7d3b02be 100644 --- a/ncurses/base/lib_newwin.c +++ b/ncurses/base/lib_newwin.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. * + * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -30,6 +30,7 @@ * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * * and: Thomas E. Dickey 1996-on * + * and: Juergen Pfeifer 2009 * ****************************************************************************/ /* @@ -40,36 +41,39 @@ */ #include +#include -MODULE_ID("$Id: lib_newwin.c,v 1.38 2006/10/14 20:31:19 tom Exp $") +MODULE_ID("$Id: lib_newwin.c,v 1.57 2009/05/09 23:40:03 tom Exp $") -static WINDOW * +#define window_is(name) ((sp)->_##name == win) + +#if USE_REENTRANT +#define remove_window(name) \ + sp->_##name = 0 +#else +#define remove_window(name) \ + sp->_##name = 0; \ + if (win == name) \ + name = 0 +#endif + +static void remove_window_from_screen(WINDOW *win) { - SCREEN **scan = &_nc_screen_chain; - - while (*scan) { - SCREEN *sp = *scan; - if (sp->_curscr == win) { - sp->_curscr = 0; - if (win == curscr) - curscr = 0; - } else if (sp->_stdscr == win) { - sp->_stdscr = 0; - if (win == stdscr) - stdscr = 0; - } else if (sp->_newscr == win) { - sp->_newscr = 0; - if (win == newscr) - newscr = 0; - } else { - scan = &(*scan)->_next_screen; - continue; + SCREEN *sp; + + for (each_screen(sp)) { + if (window_is(curscr)) { + remove_window(curscr); + break; + } else if (window_is(stdscr)) { + remove_window(stdscr); + break; + } else if (window_is(newscr)) { + remove_window(newscr); + break; } - break; } - - return 0; } NCURSES_EXPORT(int) @@ -79,33 +83,41 @@ _nc_freewin(WINDOW *win) int i; int result = ERR; + T((T_CALLED("_nc_freewin(%p)"), win)); + if (win != 0) { - for (p = _nc_windows, q = 0; p != 0; q = p, p = p->next) { - if (&(p->win) == win) { - remove_window_from_screen(win); - if (q == 0) - _nc_windows = p->next; - else - q->next = p->next; - - if (!(win->_flags & _SUBWIN)) { - for (i = 0; i <= win->_maxy; i++) - FreeIfNeeded(win->_line[i].text); + if (_nc_try_global(curses) == 0) { + q = 0; + for (each_window(SP, p)) { + if (&(p->win) == win) { + remove_window_from_screen(win); + if (q == 0) + WindowList(SP) = p->next; + else + q->next = p->next; + + if (!(win->_flags & _SUBWIN)) { + for (i = 0; i <= win->_maxy; i++) + FreeIfNeeded(win->_line[i].text); + } + free(win->_line); + free(p); + + result = OK; + T(("...deleted win=%p", win)); + break; } - free(win->_line); - free(p); - - result = OK; - T(("...deleted win=%p", win)); - break; + q = p; } + _nc_unlock_global(curses); } } - return result; + returnCode(result); } NCURSES_EXPORT(WINDOW *) -newwin(int num_lines, int num_columns, int begy, int begx) +NCURSES_SP_NAME(newwin) (NCURSES_SP_DCLx + int num_lines, int num_columns, int begy, int begx) { WINDOW *win; NCURSES_CH_T *ptr; @@ -117,11 +129,13 @@ newwin(int num_lines, int num_columns, int begy, int begx) returnWin(0); if (num_lines == 0) - num_lines = SP->_lines_avail - begy; + num_lines = SP_PARM->_lines_avail - begy; if (num_columns == 0) - num_columns = screen_columns - begx; + num_columns = screen_columns(SP_PARM) - begx; - if ((win = _nc_makenew(num_lines, num_columns, begy, begx, 0)) == 0) + win = NCURSES_SP_NAME(_nc_makenew) (NCURSES_SP_ARGx + num_lines, num_columns, begy, begx, 0); + if (win == 0) returnWin(0); for (i = 0; i < num_lines; i++) { @@ -139,9 +153,22 @@ newwin(int num_lines, int num_columns, int begy, int begx) returnWin(win); } +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(WINDOW *) +newwin(int num_lines, int num_columns, int begy, int begx) +{ + return NCURSES_SP_NAME(newwin) (CURRENT_SCREEN, + num_lines, num_columns, + begy, begx); +} +#endif + NCURSES_EXPORT(WINDOW *) derwin(WINDOW *orig, int num_lines, int num_columns, int begy, int begx) { +#if NCURSES_SP_FUNCS + SCREEN *sp = CURRENT_SCREEN; +#endif WINDOW *win; int i; int flags = _SUBWIN; @@ -167,8 +194,10 @@ derwin(WINDOW *orig, int num_lines, int num_columns, int begy, int begx) if (orig->_flags & _ISPAD) flags |= _ISPAD; - if ((win = _nc_makenew(num_lines, num_columns, orig->_begy + begy, - orig->_begx + begx, flags)) == 0) + win = NCURSES_SP_NAME(_nc_makenew) (NCURSES_SP_ARGx num_lines, num_columns, + orig->_begy + begy, + orig->_begx + begx, flags); + if (win == 0) returnWin(0); win->_pary = begy; @@ -201,45 +230,55 @@ dimension_limit(int value) } NCURSES_EXPORT(WINDOW *) -_nc_makenew(int num_lines, int num_columns, int begy, int begx, int flags) +NCURSES_SP_NAME(_nc_makenew) (NCURSES_SP_DCLx + int num_lines, + int num_columns, + int begy, + int begx, + int flags) { int i; WINDOWLIST *wp; WINDOW *win; bool is_pad = (flags & _ISPAD); - T(("_nc_makenew(%d,%d,%d,%d)", num_lines, num_columns, begy, begx)); + T((T_CALLED("_nc_makenew(%p,%d,%d,%d,%d)"), + SP_PARM, num_lines, num_columns, begy, begx)); - if (SP == 0) - return 0; + if (SP_PARM == 0) + returnWin(0); if (!dimension_limit(num_lines) || !dimension_limit(num_columns)) - return 0; + returnWin(0); if ((wp = typeCalloc(WINDOWLIST, 1)) == 0) - return 0; + returnWin(0); win = &(wp->win); if ((win->_line = typeCalloc(struct ldat, ((unsigned) num_lines))) == 0) { free(win); - return 0; + returnWin(0); } + _nc_lock_global(curses); + win->_curx = 0; win->_cury = 0; win->_maxy = num_lines - 1; win->_maxx = num_columns - 1; win->_begy = begy; win->_begx = begx; - win->_yoffset = SP->_topstolen; + win->_yoffset = SP_PARM->_topstolen; win->_flags = flags; WINDOW_ATTRS(win) = A_NORMAL; SetChar(win->_nc_bkgd, BLANK_TEXT, BLANK_ATTR); - win->_clear = is_pad ? FALSE : (num_lines == screen_lines - && num_columns == screen_columns); + win->_clear = (is_pad + ? FALSE + : (num_lines == screen_lines(SP_PARM) + && num_columns == screen_columns(SP_PARM))); win->_idlok = FALSE; win->_idcok = TRUE; win->_scroll = FALSE; @@ -288,20 +327,69 @@ _nc_makenew(int num_lines, int num_columns, int begy, int begx, int flags) if_USE_SCROLL_HINTS(win->_line[i].oldindex = i); } - if (!is_pad && (begx + num_columns == screen_columns)) { + if (!is_pad && (begx + num_columns == screen_columns(SP_PARM))) { win->_flags |= _ENDLINE; - if (begx == 0 && num_lines == screen_lines && begy == 0) + if (begx == 0 && num_lines == screen_lines(SP_PARM) && begy == 0) win->_flags |= _FULLWIN; - if (begy + num_lines == screen_lines) + if (begy + num_lines == screen_lines(SP_PARM)) win->_flags |= _SCROLLWIN; } - wp->next = _nc_windows; - _nc_windows = wp; + wp->next = WindowList(SP_PARM); + wp->screen = SP_PARM; + WindowList(SP_PARM) = wp; T((T_CREATE("window %p"), win)); - return (win); + _nc_unlock_global(curses); + returnWin(win); +} + +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(WINDOW *) +_nc_makenew(int num_lines, int num_columns, int begy, int begx, int flags) +{ + return NCURSES_SP_NAME(_nc_makenew) (CURRENT_SCREEN, + num_lines, num_columns, + begy, begx, flags); +} +#endif + +/* + * wgetch() and other functions with a WINDOW* parameter may use a SCREEN* + * internally, and it is useful to allow those to be invoked without switching + * SCREEN's, e.g., for multi-threaded applications. + */ +NCURSES_EXPORT(SCREEN *) +_nc_screen_of(WINDOW *win) +{ + SCREEN *sp = 0; + + if (win != 0) { + WINDOWLIST *wp = (WINDOWLIST *) win; + sp = wp->screen; + } + return (sp); +} + +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(WINDOW *) +_nc_curscr_of(SCREEN *sp) +{ + return sp == 0 ? 0 : sp->_curscr; +} + +NCURSES_EXPORT(WINDOW *) +_nc_newscr_of(SCREEN *sp) +{ + return sp == 0 ? 0 : sp->_newscr; +} + +NCURSES_EXPORT(WINDOW *) +_nc_stdscr_of(SCREEN *sp) +{ + return sp == 0 ? 0 : sp->_stdscr; } +#endif