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Diffstat (limited to 'ncurses-5.9/test/demo_menus.c')
| -rw-r--r-- | ncurses-5.9/test/demo_menus.c | 902 |
1 files changed, 902 insertions, 0 deletions
diff --git a/ncurses-5.9/test/demo_menus.c b/ncurses-5.9/test/demo_menus.c new file mode 100644 index 0000000..0b40a07 --- /dev/null +++ b/ncurses-5.9/test/demo_menus.c @@ -0,0 +1,902 @@ +/**************************************************************************** + * Copyright (c) 2005-2010,2011 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. * + ****************************************************************************/ +/* + * $Id$ + * + * Demonstrate a variety of functions from the menu library. + * Thomas Dickey - 2005/4/9 + */ +/* +item_description - +item_init - +item_opts - +item_opts_off - +item_opts_on - +item_term - +item_userptr - +item_visible - +menu_back - +menu_fore - +menu_format - +menu_grey - +menu_init - +menu_opts - +menu_pad - +menu_request_by_name - +menu_request_name - +menu_sub - +menu_term - +menu_userptr - +set_current_item - +set_item_init - +set_item_opts - +set_item_term - +set_item_userptr - +set_menu_grey - +set_menu_init - +set_menu_items - +set_menu_opts - +set_menu_pad - +set_menu_pattern - +set_menu_spacing - +set_menu_term - +set_menu_userptr - +set_top_row - +top_row - +*/ + +#include <test.priv.h> + +#if USE_LIBMENU + +#include <menu.h> + +#include <sys/types.h> +#include <sys/stat.h> + +#ifdef NCURSES_VERSION +#ifdef TRACE +static unsigned save_trace = TRACE_ORDINARY | TRACE_CALLS; +extern unsigned _nc_tracing; +static MENU *mpTrace; +#endif +#else +#undef TRACE +#endif + +typedef enum { + eBanner = -1 + ,eFile + ,eSelect +#ifdef TRACE + ,eTrace +#endif + ,eMAX +} MenuNo; + +#define okMenuNo(n) (((n) > eBanner) && ((n) < eMAX)) + +#define MENU_Y 1 + +static MENU *mpBanner; +static MENU *mpFile; +static MENU *mpSelect; + +static bool loaded_file = FALSE; + +#if !HAVE_STRDUP +#define strdup my_strdup +static char * +strdup(char *s) +{ + char *p = typeMalloc(char, strlen(s) + 1); + if (p) + strcpy(p, s); + return (p); +} +#endif /* not HAVE_STRDUP */ + +/* Common function to allow ^T to toggle trace-mode in the middle of a test + * so that trace-files can be made smaller. + */ +static int +wGetchar(WINDOW *win) +{ + int c; +#ifdef TRACE + while ((c = wgetch(win)) == CTRL('T')) { + if (_nc_tracing) { + save_trace = _nc_tracing; + Trace(("TOGGLE-TRACING OFF")); + _nc_tracing = 0; + } else { + _nc_tracing = save_trace; + } + trace(_nc_tracing); + if (_nc_tracing) + Trace(("TOGGLE-TRACING ON")); + } +#else + c = wgetch(win); +#endif + return c; +} +#define Getchar() wGetchar(stdscr) + +static int +menu_virtualize(int c) +{ + int result; + + if (c == '\n' || c == KEY_EXIT) + result = (MAX_COMMAND + 1); + else if (c == 'u') + result = (REQ_SCR_ULINE); + else if (c == 'd') + result = (REQ_SCR_DLINE); + else if (c == 'b' || c == KEY_NPAGE) + result = (REQ_SCR_UPAGE); + else if (c == 'f' || c == KEY_PPAGE) + result = (REQ_SCR_DPAGE); + else if (c == 'l' || c == KEY_LEFT || c == KEY_BTAB) + result = (REQ_LEFT_ITEM); + else if (c == 'n' || c == KEY_DOWN) + result = (REQ_NEXT_ITEM); + else if (c == 'p' || c == KEY_UP) + result = (REQ_PREV_ITEM); + else if (c == 'r' || c == KEY_RIGHT || c == '\t') + result = (REQ_RIGHT_ITEM); + else if (c == ' ') + result = (REQ_TOGGLE_ITEM); + else { + if (c != KEY_MOUSE) + beep(); + result = (c); + } + return result; +} + +static int +menu_getc(MENU * m) +{ + return wGetchar(menu_win(m)); +} + +static int +menu_offset(MenuNo number) +{ + int result = 0; + + if (okMenuNo(number)) { + int spc_desc, spc_rows, spc_cols; + +#ifdef NCURSES_VERSION + menu_spacing(mpBanner, &spc_desc, &spc_rows, &spc_cols); +#else + spc_rows = 0; +#endif + + /* FIXME: MENU.itemlen seems the only way to get actual width of items */ + result = (number - (eBanner + 1)) * (menu_itemwidth(mpBanner) + spc_rows); + } + return result; +} + +static MENU * +menu_create(ITEM ** items, int count, int ncols, MenuNo number) +{ + MENU *result; + WINDOW *menuwin; + int mrows, mcols; + 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 maxrow = (count + 1) / ncols; + + if ((maxrow + y) >= (LINES - 4)) + maxrow = LINES - 4 - y; + + result = new_menu(items); + + if (has_colors()) { + set_menu_fore(result, COLOR_PAIR(1)); + set_menu_back(result, COLOR_PAIR(2)); + } + + set_menu_format(result, maxrow, maxcol); + scale_menu(result, &mrows, &mcols); + + if (mcols + (2 * margin + x) >= COLS) + mcols = COLS - (2 * margin + x); + +#ifdef TRACE + if (number == eTrace) + menu_opts_off(result, O_ONEVALUE); + else + menu_opts_on(result, O_ONEVALUE); +#endif + + menuwin = newwin(mrows + (2 * margin), mcols + (2 * margin), y, x); + set_menu_win(result, menuwin); + keypad(menuwin, TRUE); + if (margin) + box(menuwin, 0, 0); + + set_menu_sub(result, derwin(menuwin, mrows, mcols, margin, margin)); + + post_menu(result); + + return result; +} + +static void +menu_destroy(MENU * m) +{ + int count; + + Trace(("menu_destroy %p", (void *) m)); + if (m != 0) { + ITEM **items = menu_items(m); + const char *blob = 0; + + count = item_count(m); + Trace(("menu_destroy %p count %d", (void *) m, count)); + if ((count > 0) && (m == mpSelect)) { + blob = item_name(*items); + } + + unpost_menu(m); + free_menu(m); + + /* free the extra data allocated in build_select_menu() */ + if ((count > 0) && (m == mpSelect)) { + if (blob && loaded_file) { + Trace(("freeing blob %p", blob)); + free((char *) blob); + } + free(items); + } +#ifdef TRACE + if ((count > 0) && (m == mpTrace)) { + ITEM **ip = items; + while (*ip) + free(*ip++); + } +#endif + } +} + +/* force the given menu to appear */ +static void +menu_display(MENU * m) +{ + touchwin(menu_win(m)); + wrefresh(menu_win(m)); +} + +/*****************************************************************************/ + +static void +build_file_menu(MenuNo number) +{ + static CONST_MENUS char *labels[] = + { + "Exit", + (char *) 0 + }; + static ITEM *items[SIZEOF(labels)]; + + ITEM **ip = items; + CONST_MENUS char **ap; + + for (ap = labels; *ap; ap++) + *ip++ = new_item(*ap, ""); + *ip = (ITEM *) 0; + + mpFile = menu_create(items, SIZEOF(labels) - 1, 1, number); +} + +static int +perform_file_menu(int cmd) +{ + return menu_driver(mpFile, cmd); +} + +/*****************************************************************************/ + +static void +build_select_menu(MenuNo number, char *filename) +{ + static CONST_MENUS char *labels[] = + { + "Lions", + "Tigers", + "Bears", + "(Oh my!)", + "Newts", + "Platypi", + "Lemurs", + "(Oh really?!)", + "Leopards", + "Panthers", + "Pumas", + "Lions, Tigers, Bears, (Oh my!), Newts, Platypi, Lemurs", + "Lions, Tigers, Bears, (Oh my!), Newts, Platypi, Lemurs, Lions, Tigers, Bears, (Oh my!), Newts, Platypi, Lemurs", + (char *) 0 + }; + static ITEM **items; + + ITEM **ip; + CONST_MENUS char **ap = 0; + CONST_MENUS char **myList = 0; + unsigned count = 0; + + if (filename != 0) { + struct stat sb; + if (stat(filename, &sb) == 0 + && (sb.st_mode & S_IFMT) == S_IFREG + && sb.st_size != 0) { + size_t size = (size_t) sb.st_size; + unsigned j, k; + char *blob = typeMalloc(char, size + 1); + CONST_MENUS char **list = typeCalloc(CONST_MENUS char *, size + 1); + + items = typeCalloc(ITEM *, size + 1); + Trace(("build_select_menu blob=%p, items=%p", + (void *) blob, + (void *) items)); + if (blob != 0 && list != 0) { + FILE *fp = fopen(filename, "r"); + if (fp != 0) { + if (fread(blob, sizeof(char), size, fp) == size) { + bool mark = TRUE; + for (j = k = 0; j < size; ++j) { + if (mark) { + list[k++] = blob + j; + mark = FALSE; + } + if (blob[j] == '\n') { + blob[j] = '\0'; + if (k > 0 && *list[k - 1] == '\0') + --k; + mark = TRUE; + } else if (blob[j] == '\t') { + blob[j] = ' '; /* menu items are printable */ + } + } + list[k] = 0; + count = k; + ap = myList = list; + } + fclose(fp); + } + loaded_file = TRUE; + } + } + } + if (ap == 0) { + count = SIZEOF(labels) - 1; + items = typeCalloc(ITEM *, count + 1); + ap = labels; + } + + ip = items; + while (*ap != 0) + *ip++ = new_item(*ap++, ""); + *ip = 0; + + mpSelect = menu_create(items, (int) count, 1, number); + if (myList != 0) + free(myList); +} + +static int +perform_select_menu(int cmd) +{ + return menu_driver(mpSelect, cmd); +} + +/*****************************************************************************/ + +#ifdef TRACE +#define T_TBL(name) { #name, name } +static struct { + const char *name; + unsigned mask; +} t_tbl[] = { + + T_TBL(TRACE_DISABLE), + T_TBL(TRACE_TIMES), + T_TBL(TRACE_TPUTS), + T_TBL(TRACE_UPDATE), + T_TBL(TRACE_MOVE), + T_TBL(TRACE_CHARPUT), + T_TBL(TRACE_ORDINARY), + T_TBL(TRACE_CALLS), + T_TBL(TRACE_VIRTPUT), + T_TBL(TRACE_IEVENT), + T_TBL(TRACE_BITS), + T_TBL(TRACE_ICALLS), + T_TBL(TRACE_CCALLS), + T_TBL(TRACE_DATABASE), + T_TBL(TRACE_ATTRS), + T_TBL(TRACE_MAXIMUM), + { + (char *) 0, 0 + } +}; + +static void +build_trace_menu(MenuNo number) +{ + static ITEM *items[SIZEOF(t_tbl)]; + + ITEM **ip = items; + int n; + + for (n = 0; t_tbl[n].name != 0; n++) + *ip++ = new_item(t_tbl[n].name, ""); + *ip = (ITEM *) 0; + + mpTrace = menu_create(items, SIZEOF(t_tbl) - 1, 2, number); +} + +static char * +tracetrace(unsigned tlevel) +{ + static char *buf; + int n; + + if (buf == 0) { + size_t need = 12; + for (n = 0; t_tbl[n].name != 0; n++) + need += strlen(t_tbl[n].name) + 2; + buf = typeMalloc(char, need); + } + sprintf(buf, "0x%02x = {", tlevel); + if (tlevel == 0) { + sprintf(buf + strlen(buf), "%s, ", t_tbl[0].name); + } else { + for (n = 1; t_tbl[n].name != 0; n++) + if ((tlevel & t_tbl[n].mask) == t_tbl[n].mask) { + strcat(buf, t_tbl[n].name); + strcat(buf, ", "); + } + } + if (buf[strlen(buf) - 2] == ',') + buf[strlen(buf) - 2] = '\0'; + return (strcat(buf, "}")); +} + +/* fake a dynamically reconfigurable menu using the 0th entry to deselect + * the others + */ +static bool +update_trace_menu(MENU * m) +{ + ITEM **items; + ITEM *i, **p; + bool changed = FALSE; + + items = menu_items(m); + i = current_item(m); + if (i == items[0]) { + if (item_value(i)) { + for (p = items + 1; *p != 0; p++) + if (item_value(*p)) { + set_item_value(*p, FALSE); + changed = TRUE; + } + } + } + return changed; +} + +static int +perform_trace_menu(int cmd) +/* interactively set the trace level */ +{ + ITEM **ip; + unsigned newtrace; + int result; + + for (ip = menu_items(mpTrace); *ip; ip++) { + unsigned mask = t_tbl[item_index(*ip)].mask; + if (mask == 0) + set_item_value(*ip, _nc_tracing == 0); + else if ((mask & _nc_tracing) == mask) + set_item_value(*ip, TRUE); + } + + result = menu_driver(mpTrace, cmd); + + if (result == E_OK) { + if (update_trace_menu(mpTrace) || cmd == REQ_TOGGLE_ITEM) { + newtrace = 0; + for (ip = menu_items(mpTrace); *ip; ip++) { + if (item_value(*ip)) + newtrace |= t_tbl[item_index(*ip)].mask; + } + trace(newtrace); + Trace(("trace level interactively set to %s", tracetrace(_nc_tracing))); + + MvPrintw(LINES - 2, 0, + "Trace level is %s\n", tracetrace(_nc_tracing)); + refresh(); + } + } + return result; +} +#endif /* TRACE */ + +/*****************************************************************************/ + +static int +menu_number(void) +{ + return item_index(current_item(mpBanner)) - (eBanner + 1); +} + +static MENU * +current_menu(void) +{ + MENU *result; + + switch (menu_number()) { + case eFile: + result = mpFile; + break; + case eSelect: + result = mpSelect; + break; +#ifdef TRACE + case eTrace: + result = mpTrace; + break; +#endif + default: + result = 0; + break; + } + return result; +} + +static void +build_menus(char *filename) +{ + static CONST_MENUS char *labels[] = + { + "File", + "Select", +#ifdef TRACE + "Trace", +#endif + (char *) 0 + }; + static ITEM *items[SIZEOF(labels)]; + + ITEM **ip = items; + CONST_MENUS char **ap; + + for (ap = labels; *ap; ap++) + *ip++ = new_item(*ap, ""); + *ip = (ITEM *) 0; + + mpBanner = menu_create(items, SIZEOF(labels) - 1, SIZEOF(labels) - 1, eBanner); + set_menu_mark(mpBanner, ">"); + + build_file_menu(eFile); + build_select_menu(eSelect, filename); +#ifdef TRACE + build_trace_menu(eTrace); +#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; + int cmd; + int ch = ERR; + +#ifdef NCURSES_MOUSE_VERSION + mousemask(ALL_MOUSE_EVENTS, (mmask_t *) 0); +#endif + + 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) { + /* + * The banner menu acts solely to select one of the other menus. + * Move between its items, wrapping at the left/right limits. + */ + case REQ_LEFT_ITEM: + case REQ_RIGHT_ITEM: + code = menu_driver(mpBanner, cmd); + if (code == E_REQUEST_DENIED) { + if (menu_number() > 0) + code = menu_driver(mpBanner, REQ_FIRST_ITEM); + else + code = menu_driver(mpBanner, REQ_LAST_ITEM); + } + break; + default: + switch (menu_number()) { + case eFile: + code = perform_file_menu(cmd); + break; + case eSelect: + code = perform_select_menu(cmd); + break; +#ifdef TRACE + case eTrace: + code = perform_trace_menu(cmd); + break; +#endif + } + + if ((code == E_REQUEST_DENIED) && (cmd == KEY_MOUSE)) { + code = menu_driver(mpBanner, cmd); + } + + break; + } + + if (code == E_OK) { + this_menu = current_menu(); + if (this_menu != last_menu) { + move(1, 0); + clrtobot(); + box(menu_win(this_menu), 0, 0); + refresh(); + + /* force the current menu to appear */ + menu_display(this_menu); + + last_menu = this_menu; + } + } + wrefresh(menu_win(last_menu)); + if (code == E_UNKNOWN_COMMAND + || code == E_NOT_POSTED) { + if (menu_number() == eFile) + break; + beep(); + } + if (code == E_REQUEST_DENIED) + beep(); + continue; + } + +#ifdef NCURSES_MOUSE_VERSION + mousemask(0, (mmask_t *) 0); +#endif +} + +static void +destroy_menus(void) +{ + menu_destroy(mpFile); + menu_destroy(mpSelect); +#ifdef TRACE + menu_destroy(mpTrace); +#endif + 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:")) != -1) { + 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(); + noecho(); + + if (has_colors()) { + start_color(); + init_pair(1, COLOR_RED, COLOR_BLACK); + init_pair(2, COLOR_BLUE, COLOR_WHITE); + } + build_menus(argc > 1 ? argv[1] : 0); + perform_menus(); + destroy_menus(); + + endwin(); + ExitProgram(EXIT_SUCCESS); +} +#else +int +main(void) +{ + printf("This program requires the curses menu library\n"); + ExitProgram(EXIT_FAILURE); +} +#endif |