+/****************************************************************************
+ * Copyright (c) 2005,2006 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 *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
/*
- * $Id: demo_menus.c,v 1.13 2005/10/01 15:54:31 tom Exp $
+ * $Id: demo_menus.c,v 1.20 2006/06/17 17:39:37 tom Exp $
*
* Demonstrate a variety of functions from the menu library.
* Thomas Dickey - 2005/4/9
menu_format -
menu_grey -
menu_init -
-menu_mark -
menu_opts -
menu_pad -
-menu_pattern -
menu_request_by_name -
menu_request_name -
menu_sub -
#endif
typedef enum {
- eUnknown = -1
- ,eFile = 0
+ eBanner = -1
+ ,eFile
,eSelect
#ifdef TRACE
,eTrace
#endif
+ ,eMAX
} MenuNo;
+#define okMenuNo(n) (((n) > eBanner) && ((n) < eMAX))
+
#define MENU_Y 1
static MENU *mpBanner;
{
int result = 0;
- if ((int) number >= 0) {
+ if (okMenuNo(number)) {
int spc_desc, spc_rows, spc_cols;
#ifdef NCURSES_VERSION
#endif
/* FIXME: MENU.itemlen seems the only way to get actual width of items */
- result = number * (mpBanner->itemlen + spc_rows);
+ result = (number - (eBanner + 1)) * (mpBanner->itemlen + spc_rows);
}
return result;
}
MENU *result;
WINDOW *menuwin;
int mrows, mcols;
- int y = ((int) number >= 0) ? MENU_Y : 0;
+ int y = okMenuNo(number) ? MENU_Y : 0;
int x = menu_offset(number);
int margin = (y == MENU_Y) ? 1 : 0;
int maxcol = (ncols + x) < COLS ? ncols : (COLS - x - 1);
int count;
if (m != 0) {
+ delwin(menu_sub(m));
delwin(menu_win(m));
ip = menu_items(m);
static int
menu_number(void)
{
- return item_index(current_item(mpBanner));
+ return item_index(current_item(mpBanner)) - (eBanner + 1);
}
static MENU *
*ip++ = new_item(*ap, "");
*ip = (ITEM *) 0;
- mpBanner = menu_create(items, SIZEOF(labels) - 1, SIZEOF(labels) - 1, eUnknown);
+ mpBanner = menu_create(items, SIZEOF(labels) - 1, SIZEOF(labels) - 1, eBanner);
set_menu_mark(mpBanner, ">");
build_file_menu(eFile);
#endif
}
+static int
+move_menu(MENU * menu, MENU * current, int by_y, int by_x)
+{
+ WINDOW *top_win = menu_win(menu);
+ WINDOW *sub_win = menu_sub(menu);
+ int y0, x0;
+ int y1, x1;
+ int result;
+
+ getbegyx(top_win, y0, x0);
+ y0 += by_y;
+ x0 += by_x;
+
+ getbegyx(sub_win, y1, x1);
+ y1 += by_y;
+ x1 += by_x;
+
+ if ((result = mvwin(top_win, y0, x0)) != ERR) {
+#if defined(NCURSES_VERSION_PATCH) && (NCURSES_VERSION_PATCH < 20060218)
+ sub_win->_begy = y1;
+ sub_win->_begx = x1;
+#else
+ mvwin(sub_win, y1, x1);
+#endif
+ if (menu == current) {
+ touchwin(top_win);
+ wnoutrefresh(top_win);
+ }
+ }
+ return result;
+}
+
+/*
+ * Move the menus around on the screen, to test mvwin().
+ */
+static void
+move_menus(MENU * current, int by_y, int by_x)
+{
+ if (move_menu(mpBanner, current, by_y, by_x) != ERR) {
+ erase();
+ wnoutrefresh(stdscr);
+ move_menu(mpFile, current, by_y, by_x);
+ move_menu(mpSelect, current, by_y, by_x);
+#ifdef TRACE
+ move_menu(mpTrace, current, by_y, by_x);
+#endif
+ doupdate();
+ }
+}
+
+static void
+show_status(int ch, MENU * menu)
+{
+ move(LINES - 1, 0);
+ printw("key %s, menu %d, mark %s, match %s",
+ keyname(ch),
+ menu_number(),
+ menu_mark(menu),
+ menu_pattern(menu));
+ clrtoeol();
+ refresh();
+}
+
static void
perform_menus(void)
{
MENU *this_menu;
MENU *last_menu = mpFile;
- int code = E_UNKNOWN_COMMAND, cmd, ch;
+ int code = E_UNKNOWN_COMMAND;
+ int cmd;
+ int ch = ERR;
#ifdef NCURSES_MOUSE_VERSION
mousemask(ALL_MOUSE_EVENTS, (mmask_t *) 0);
menu_display(last_menu);
for (;;) {
+
+ if (ch != ERR)
+ show_status(ch, last_menu);
+
ch = menu_getc(mpBanner);
+
+ /*
+ * Provide for moving the menu around in the screen using shifted
+ * cursor keys.
+ */
+ switch (ch) {
+ case KEY_SF:
+ move_menus(last_menu, 1, 0);
+ continue;
+ case KEY_SR:
+ move_menus(last_menu, -1, 0);
+ continue;
+ case KEY_SLEFT:
+ move_menus(last_menu, 0, -1);
+ continue;
+ case KEY_SRIGHT:
+ move_menus(last_menu, 0, 1);
+ continue;
+ }
cmd = menu_virtualize(ch);
switch (cmd) {
menu_destroy(mpBanner);
}
+#if HAVE_RIPOFFLINE
+static int
+rip_footer(WINDOW *win, int cols)
+{
+ wbkgd(win, A_REVERSE);
+ werase(win);
+ wmove(win, 0, 0);
+ wprintw(win, "footer: %d columns", cols);
+ wnoutrefresh(win);
+ return OK;
+}
+
+static int
+rip_header(WINDOW *win, int cols)
+{
+ wbkgd(win, A_REVERSE);
+ werase(win);
+ wmove(win, 0, 0);
+ wprintw(win, "header: %d columns", cols);
+ wnoutrefresh(win);
+ return OK;
+}
+#endif /* HAVE_RIPOFFLINE */
+
+static void
+usage(void)
+{
+ static const char *const tbl[] =
+ {
+ "Usage: demo_menus [options]"
+ ,""
+ ,"Options:"
+#if HAVE_RIPOFFLINE
+ ," -f rip-off footer line (can repeat)"
+ ," -h rip-off header line (can repeat)"
+#endif
+#ifdef TRACE
+ ," -t mask specify default trace-level (may toggle with ^T)"
+#endif
+ };
+ size_t n;
+ for (n = 0; n < SIZEOF(tbl); n++)
+ fprintf(stderr, "%s\n", tbl[n]);
+ ExitProgram(EXIT_FAILURE);
+}
+
int
main(int argc, char *argv[])
{
+ int c;
+
setlocale(LC_ALL, "");
+ while ((c = getopt(argc, argv, "a:de:fhmp:s:t:")) != EOF) {
+ switch (c) {
+#if HAVE_RIPOFFLINE
+ case 'f':
+ ripoffline(-1, rip_footer);
+ break;
+ case 'h':
+ ripoffline(1, rip_header);
+ break;
+#endif /* HAVE_RIPOFFLINE */
+#ifdef TRACE
+ case 't':
+ trace(strtoul(optarg, 0, 0));
+ break;
+#endif
+ default:
+ usage();
+ }
+ }
+
initscr();
noraw();
cbreak();
destroy_menus();
endwin();
- return EXIT_SUCCESS;
+ ExitProgram(EXIT_SUCCESS);
}
#else
int
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