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23962: store windows in a linked list instead of a static array, and use strings as window identifiers instead of integers.
This commit is contained in:
Clint Adams
parent
d10721b35e
commit
bf762680f3
3 changed files with 126 additions and 56 deletions
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@ -1,5 +1,9 @@
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2007-10-15 Clint Adams <clint@zsh.org>
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* 23962: Doc/Zsh/mod_curses.yo, Src/Modules/curses.c: store windows
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in a linked list instead of a static array, and use strings as
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window identifiers instead of integers.
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* 23958: Doc/Zsh/mod_curses.yo, Src/Modules/curses.c: change target
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window to be the first argument of zcurses -a.
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@ -17,8 +17,8 @@ Manipulate curses windows.
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With tt(-a), create a window with var(nlines) lines and var(ncols) columns.
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Its upper left corner will be placed at row var(begin_y) and column
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var(begin_x) of the screen. var(targetwin) must be an integer between 1
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and 9 inclusive, and refer to a window that is not currently assigned.
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var(begin_x) of the screen. var(targetwin) is a string and refers
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to the name of a window that is not currently assigned.
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Use tt(-d) to delete a window created with tt(-a).
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@ -39,9 +39,13 @@
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#include "curses.mdh"
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#include "curses.pro"
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#define ZCURSES_MAX_WINDOWS 9
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typedef struct zc_win {
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WINDOW *win;
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char *name;
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} *ZCWin;
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static WINDOW *zcurses_WIN[ZCURSES_MAX_WINDOWS + 1];
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WINDOW *win_zero;
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LinkList zcurses_windows;
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#define ZCURSES_ERANGE 1
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#define ZCURSES_EDEFINED 2
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@ -52,7 +56,6 @@ static WINDOW *zcurses_WIN[ZCURSES_MAX_WINDOWS + 1];
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static int zc_errno;
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/**/
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static const char *
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zcurses_strerror(int err)
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{
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@ -65,94 +68,144 @@ zcurses_strerror(int err)
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return errs[(err < 1 || err > 2) ? 0 : err];
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}
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/**/
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static unsigned
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static LinkNode
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zcurses_getwindowbyname(char *name)
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{
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LinkNode node;
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ZCWin w;
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for (node = firstnode(zcurses_windows); node; incnode(node))
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if (w = (ZCWin)getdata(node), !strcmp(w->name, name))
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return node;
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return NULL;
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}
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static LinkNode
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zcurses_validate_window(char *win, int criteria)
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{
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unsigned target;
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LinkNode target;
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if (win==NULL) {
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if (win==NULL || strlen(win) < 1) {
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zc_errno = ZCURSES_ERANGE;
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return -1;
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return NULL;
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}
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target = (unsigned)atoi(win);
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target = zcurses_getwindowbyname(win);
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if (target > ZCURSES_MAX_WINDOWS || target < 1) {
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zc_errno = ZCURSES_ERANGE;
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return -1;
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}
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if (zcurses_WIN[target]!=NULL && (criteria & ZCURSES_UNUSED)) {
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if (target && (criteria & ZCURSES_UNUSED)) {
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zc_errno = ZCURSES_EDEFINED;
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return -1;
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return NULL;
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}
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if (zcurses_WIN[target]==NULL && (criteria & ZCURSES_USED)) {
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if (!target && (criteria & ZCURSES_USED)) {
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zc_errno = ZCURSES_EUNDEFINED;
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return -1;
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return NULL;
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}
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zc_errno = 0;
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return target;
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}
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static int
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zcurses_free_window(ZCWin w)
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{
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if (delwin(w->win)!=OK)
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return 1;
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if (w->name)
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zsfree(w->name);
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zfree(w, sizeof(struct zc_win));
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return 0;
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}
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/**/
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static int
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bin_zcurses(char *nam, char **args, Options ops, UNUSED(int func))
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{
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unsigned targetwin;
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if (OPT_ISSET(ops,'a')) {
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int nlines, ncols, begin_y, begin_x;
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ZCWin w;
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if (zcurses_validate_window(args[0], ZCURSES_UNUSED) == NULL && zc_errno) {
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zerrnam(nam, "%s: %s", zcurses_strerror(zc_errno), args[0], 0);
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return 1;
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}
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targetwin = zcurses_validate_window(args[0], ZCURSES_UNUSED);
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nlines = atoi(args[1]);
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ncols = atoi(args[2]);
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begin_y = atoi(args[3]);
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begin_x = atoi(args[4]);
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if (targetwin == -1) {
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zerrnam(nam, "%s: %s", zcurses_strerror(zc_errno), args[0], 0);
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w = (ZCWin)zshcalloc(sizeof(struct zc_win));
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if (!w)
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return 1;
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w->name = ztrdup(args[0]);
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w->win = newwin(nlines, ncols, begin_y, begin_x);
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if (w->win == NULL) {
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zsfree(w->name);
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free(w);
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return 1;
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}
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zcurses_WIN[targetwin]=newwin(nlines, ncols, begin_y, begin_x);
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if (zcurses_WIN[targetwin]==NULL)
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return 1;
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zinsertlinknode(zcurses_windows, lastnode(zcurses_windows), (void *)w);
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return 0;
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}
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if (OPT_ISSET(ops,'d')) {
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targetwin = zcurses_validate_window(OPT_ARG(ops,'d'), ZCURSES_USED);
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if (targetwin == -1) {
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LinkNode node;
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ZCWin w;
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node = zcurses_validate_window(OPT_ARG(ops,'d'), ZCURSES_USED);
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if (node == NULL) {
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zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), OPT_ARG(ops,'d'), 0);
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return 1;
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}
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if (delwin(zcurses_WIN[targetwin])!=OK)
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return 1;
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w = (ZCWin)getdata(node);
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if (w == NULL) {
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zwarnnam(nam, "record for window `%s' is corrupt", OPT_ARG(ops, 'd'), 0);
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return 1;
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}
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if (delwin(w->win)!=OK)
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return 1;
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if (w->name)
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zsfree(w->name);
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remnode(zcurses_windows, node);
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zcurses_WIN[targetwin]=NULL;
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return 0;
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}
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if (OPT_ISSET(ops,'r')) {
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targetwin = zcurses_validate_window(OPT_ARG(ops,'r'), ZCURSES_USED);
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if (targetwin == -1) {
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LinkNode node;
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ZCWin w;
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node = zcurses_validate_window(OPT_ARG(ops,'r'), ZCURSES_USED);
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if (node == NULL) {
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zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), OPT_ARG(ops,'r'), 0);
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return 1;
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}
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return (wrefresh(zcurses_WIN[targetwin])!=OK) ? 1 : 0;
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w = (ZCWin)getdata(node);
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return (wrefresh(w->win)!=OK) ? 1 : 0;
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}
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if (OPT_ISSET(ops,'m')) {
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int y, x;
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LinkNode node;
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ZCWin w;
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targetwin = zcurses_validate_window(args[0], ZCURSES_USED);
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if (targetwin == -1) {
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node = zcurses_validate_window(args[0], ZCURSES_USED);
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if (node == NULL) {
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zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), args[0], 0);
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return 1;
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}
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@ -160,24 +213,30 @@ bin_zcurses(char *nam, char **args, Options ops, UNUSED(int func))
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y = atoi(args[1]);
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x = atoi(args[2]);
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if (wmove(zcurses_WIN[targetwin], y, x)!=OK)
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w = (ZCWin)getdata(node);
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if (wmove(w->win, y, x)!=OK)
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return 1;
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return 0;
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}
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if (OPT_ISSET(ops,'c')) {
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LinkNode node;
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ZCWin w;
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#ifdef HAVE_SETCCHAR
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wchar_t c;
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cchar_t cc;
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#endif
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targetwin = zcurses_validate_window(args[0], ZCURSES_USED);
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if (targetwin == -1) {
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node = zcurses_validate_window(args[0], ZCURSES_USED);
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if (node == NULL) {
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zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), args[0], 0);
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return 1;
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}
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w = (ZCWin)getdata(node);
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#ifdef HAVE_SETCCHAR
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if (mbrtowc(&c, args[1], MB_CUR_MAX, NULL) < 1)
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return 1;
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@ -185,10 +244,10 @@ bin_zcurses(char *nam, char **args, Options ops, UNUSED(int func))
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if (setcchar(&cc, &c, A_NORMAL, 0, NULL)==ERR)
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return 1;
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if (wadd_wch(zcurses_WIN[targetwin], &cc)!=OK)
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if (wadd_wch(w->win, &cc)!=OK)
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return 1;
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#else
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if (waddch(zcurses_WIN[targetwin], (chtype)args[1][0])!=OK)
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if (waddch(w->win, (chtype)args[1][0])!=OK)
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return 1;
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#endif
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@ -196,18 +255,23 @@ bin_zcurses(char *nam, char **args, Options ops, UNUSED(int func))
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}
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if (OPT_ISSET(ops,'s')) {
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LinkNode node;
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ZCWin w;
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#ifdef HAVE_SETCCHAR
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wchar_t *ws;
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cchar_t *wcc;
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size_t sl;
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#endif
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targetwin = zcurses_validate_window(args[0], ZCURSES_USED);
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if (targetwin == -1) {
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node = zcurses_validate_window(args[0], ZCURSES_USED);
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if (node == NULL) {
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zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), args[0], 0);
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return 1;
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}
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w = (ZCWin)getdata(node);
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#ifdef HAVE_SETCCHAR
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sl = strlen(args[1]);
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@ -230,28 +294,32 @@ bin_zcurses(char *nam, char **args, Options ops, UNUSED(int func))
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free(ws);
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if (wadd_wchstr(zcurses_WIN[targetwin], wcc)!=OK) {
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if (wadd_wchstr(w->win, wcc)!=OK) {
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free(wcc);
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return 1;
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}
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free(wcc);
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#else
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if (waddstr(zcurses_WIN[targetwin], args[1])!=OK)
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if (waddstr(w->win, args[1])!=OK)
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return 1;
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#endif
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return 0;
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}
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if (OPT_ISSET(ops,'b')) {
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LinkNode node;
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ZCWin w;
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targetwin = zcurses_validate_window(OPT_ARG(ops,'b'), ZCURSES_USED);
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if (targetwin == -1) {
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node = zcurses_validate_window(OPT_ARG(ops,'b'), ZCURSES_USED);
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if (node == NULL) {
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zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), OPT_ARG(ops,'b'), 0);
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return 1;
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}
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if (wborder(zcurses_WIN[targetwin], 0, 0, 0, 0, 0, 0, 0, 0)!=OK)
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w = (ZCWin)getdata(node);
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if (wborder(w->win, 0, 0, 0, 0, 0, 0, 0, 0)!=OK)
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return 1;
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return 0;
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@ -302,11 +370,8 @@ enables_(Module m, int **enables)
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int
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boot_(Module m)
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{
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int i;
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for(i=1;i<=ZCURSES_MAX_WINDOWS;i++)
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zcurses_WIN[i]=NULL;
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zcurses_WIN[0]=initscr();
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zcurses_windows = znewlinklist();
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win_zero=initscr();
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return 0;
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}
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@ -315,6 +380,7 @@ boot_(Module m)
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int
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cleanup_(Module m)
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{
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freelinklist(zcurses_windows, (FreeFunc) zcurses_free_window);
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return setfeatureenables(m, &module_features, NULL);
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}
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