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/**************************************************************************** * Copyright (c) 2003-2011,2012 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_forms.c,v 1.40 2012/11/18 01:22:44 tom Exp $ * * Demonstrate a variety of functions from the form library. * Thomas Dickey - 2003/4/26 / / TYPE_ENUM - TYPE_REGEXP - dup_field - field_init - field_just - field_term - form_init - form_opts - form_opts_off - form_opts_on - form_request_by_name - form_term - form_userptr - free_fieldtype - link_field - link_fieldtype - move_field - new_page - pos_form_cursor - set_field_init - set_field_term - set_fieldtype_arg - set_fieldtype_choice - set_form_fields - set_form_init - set_form_opts - set_form_page - set_form_term - set_form_userptr - set_max_field - / #include <test.priv.h> #if USE_LIBFORM #include <edit_field.h> static int d_option = 0; static int j_value = 0; static int m_value = 0; static int o_value = 0; static char t_value = 0; static FIELD * make_label(int frow, int fcol, NCURSES_CONST char label) { FIELD f = new_field(1, (int) strlen(label), frow, fcol, 0, 0); if (f) { set_field_buffer(f, 0, label); set_field_opts(f, (int) ((unsigned) field_opts(f) & ~O_ACTIVE)); } return (f); } /* * Define each field with an extra one, for reflecting "actual" text. / static FIELD make_field(int frow, int fcol, int rows, int cols) { FIELD f = new_field(rows, cols, frow, fcol, o_value, 1); if (f) { FieldAttrs ptr; set_field_back(f, A_UNDERLINE); /* * If -j and -d options are combined, -j loses. It is documented in * "Character User Interface Programming", page 12-15 that setting * O_STATIC off makes the form library ignore justification. / set_field_just(f, j_value); if (d_option) { if (has_colors()) { set_field_fore(f, (chtype) COLOR_PAIR(2)); set_field_back(f, A_UNDERLINE \| COLOR_PAIR(3)); } else { set_field_fore(f, A_BOLD); } / * The field_opts_off() call dumps core with Solaris curses, * but that is a known bug in Solaris' form library -TD / field_opts_off(f, O_STATIC); set_max_field(f, m_value); } / * The userptr is used in edit_field.c's inactive_field(). / ptr = (FieldAttrs ) field_userptr(f); if (ptr == 0) { ptr = typeCalloc(FieldAttrs, 1); ptr->background = field_back(f); } set_field_userptr(f, (void ) ptr); if (t_value) set_field_buffer(f, 0, t_value); } return (f); } static void display_form(FORM f) { WINDOW w; int rows, cols; scale_form(f, &rows, &cols); / * Put the form at the upper-left corner of the display, with just a box * around it. / if ((w = newwin(rows + 2, cols + 4, 0, 0)) != (WINDOW ) 0) { set_form_win(f, w); set_form_sub(f, derwin(w, rows, cols, 1, 2)); box(w, 0, 0); keypad(w, TRUE); if (post_form(f) != E_OK) wrefresh(w); } } static void erase_form(FORM * f) { WINDOW w = form_win(f); WINDOW s = form_sub(f); unpost_form(f); werase(w); wrefresh(w); delwin(s); delwin(w); } static void show_insert_mode(bool insert_mode) { MvAddStr(5, 57, (insert_mode ? "form_status: insert " : "form_status: overlay")); } #define O_SELECTABLE (O_ACTIVE \| O_VISIBLE) static FIELD * another_field(FORM * form, FIELD * field) { FIELD *f = form_fields(form); FIELD result = 0; int n; for (n = 0; f[n] != 0; ++n) { if (f[n] != field) { result = f[n]; field_opts_on(result, O_SELECTABLE); break; } } return result; } static int my_form_driver(FORM * form, int c) { static bool insert_mode = TRUE; FIELD field; switch (c) { case MY_QUIT: if (form_driver(form, REQ_VALIDATION) == E_OK) return (TRUE); break; case MY_HELP: help_edit_field(); break; case MY_EDT_MODE: if ((field = current_field(form)) != 0) { set_current_field(form, another_field(form, field)); if ((unsigned) field_opts(field) & O_EDIT) { field_opts_off(field, O_EDIT); set_field_status(field, 0); } else { field_opts_on(field, O_EDIT); } set_current_field(form, field); } break; case MY_INS_MODE: / there should be a form_status() function, but there is none / if (!insert_mode) { if (form_driver(form, REQ_INS_MODE) == E_OK) { insert_mode = TRUE; } } else { if (form_driver(form, REQ_OVL_MODE) == E_OK) { insert_mode = FALSE; } } show_insert_mode(insert_mode); refresh(); break; default: beep(); break; } return (FALSE); } static void show_current_field(WINDOW win, FORM * form) { FIELD field; FIELDTYPE type; char buffer; int nbuf; int field_rows, field_cols, field_max; int currow, curcol; if (has_colors()) { wbkgd(win, (chtype) COLOR_PAIR(1)); } werase(win); form_getyx(form, currow, curcol); wprintw(win, "Cursor: %d,%d", currow, curcol); if (data_ahead(form)) waddstr(win, " ahead"); if (data_behind(form)) waddstr(win, " behind"); waddch(win, '\n'); if ((field = current_field(form)) != 0) { wprintw(win, "Page %d%s, Field %d/%d%s:", form_page(form), new_page(field) ? "" : "", field_index(field), field_count(form), field_arg(field) ? "(arg)" : ""); if ((type = field_type(field)) != 0) { if (type == TYPE_ALNUM) waddstr(win, "ALNUM"); else if (type == TYPE_ALPHA) waddstr(win, "ALPHA"); else if (type == TYPE_ENUM) waddstr(win, "ENUM"); else if (type == TYPE_INTEGER) waddstr(win, "INTEGER"); #ifdef NCURSES_VERSION else if (type == TYPE_IPV4) waddstr(win, "IPV4"); #endif else if (type == TYPE_NUMERIC) waddstr(win, "NUMERIC"); else if (type == TYPE_REGEXP) waddstr(win, "REGEXP"); else waddstr(win, "other"); } if ((unsigned) field_opts(field) & O_EDIT) waddstr(win, " editable"); else waddstr(win, " readonly"); if (field_status(field)) waddstr(win, " modified"); if (dynamic_field_info(field, &field_rows, &field_cols, &field_max) != ERR) { wprintw(win, " size %dx%d (max %d)", field_rows, field_cols, field_max); } waddch(win, ' '); (void) wattrset(win, (int) field_fore(field)); waddstr(win, "fore"); wattroff(win, (int) field_fore(field)); waddch(win, '/'); (void) wattrset(win, (int) field_back(field)); waddstr(win, "back"); wattroff(win, (int) field_back(field)); wprintw(win, ", pad '%c'", field_pad(field)); waddstr(win, "\n"); for (nbuf = 0; nbuf <= 2; ++nbuf) { if ((buffer = field_buffer(field, nbuf)) != 0) { wprintw(win, "buffer %d:", nbuf); (void) wattrset(win, A_REVERSE); waddstr(win, buffer); wattroff(win, A_REVERSE); waddstr(win, "\n"); } } } wrefresh(win); } static void demo_forms(void) { WINDOW w; FORM form; FIELD f[100]; / FIXME memset to zero / int finished = 0, c; unsigned n = 0; int pg; WINDOW also; #ifdef NCURSES_MOUSE_VERSION mousemask(ALL_MOUSE_EVENTS, (mmask_t ) 0); #endif help_edit_field(); MvAddStr(4, 57, "Forms Entry Test"); show_insert_mode(TRUE); refresh(); / describe the form / memset(f, 0, sizeof(f)); for (pg = 0; pg < 4; ++pg) { char label[80]; sprintf(label, "Sample Form Page %d", pg + 1); f[n++] = make_label(0, 15, label); set_new_page(f[n - 1], TRUE); switch (pg) { default: f[n++] = make_label(2, 0, "Last Name"); f[n++] = make_field(3, 0, 1, 18); set_field_type(f[n - 1], TYPE_ALPHA, 1); f[n++] = make_label(2, 20, "First Name"); f[n++] = make_field(3, 20, 1, 12); set_field_type(f[n - 1], TYPE_ALPHA, 1); f[n++] = make_label(2, 34, "Middle Name"); f[n++] = make_field(3, 34, 1, 12); set_field_type(f[n - 1], TYPE_ALPHA, 1); break; case 1: f[n++] = make_label(2, 0, "Last Name"); f[n++] = make_field(3, 0, 1, 18); set_field_type(f[n - 1], TYPE_ALPHA, 1); f[n++] = make_label(2, 20, "First Name"); f[n++] = make_field(3, 20, 1, 12); set_field_type(f[n - 1], TYPE_ALPHA, 1); f[n++] = make_label(2, 34, "MI"); f[n++] = make_field(3, 34, 1, 1); set_field_pad(f[n - 1], '?'); set_field_type(f[n - 1], TYPE_ALPHA, 1); break; case 2: f[n++] = make_label(2, 0, "Host Name"); f[n++] = make_field(3, 0, 1, 18); set_field_type(f[n - 1], TYPE_ALNUM, 1); #ifdef NCURSES_VERSION f[n++] = make_label(2, 20, "IP Address"); f[n++] = make_field(3, 20, 1, 12); set_field_type(f[n - 1], TYPE_IPV4, 1); #endif break; case 3: f[n++] = make_label(2, 0, "Four digits"); f[n++] = make_field(3, 0, 1, 18); set_field_type(f[n - 1], TYPE_INTEGER, 4, 0, 0); f[n++] = make_label(2, 20, "Numeric"); f[n++] = make_field(3, 20, 1, 12); set_field_type(f[n - 1], TYPE_NUMERIC, 3, -10000.0, 100000000.0); break; } f[n++] = make_label(5, 0, "Comments"); f[n++] = make_field(6, 0, 4, 46); set_field_buffer(f[n - 1], 0, "HELLO\nWORLD!"); set_field_buffer(f[n - 1], 1, "Hello\nWorld!"); } f[n] = (FIELD ) 0; if ((form = new_form(f)) != 0) { display_form(form); w = form_win(form); also = newwin(getmaxy(stdscr) - getmaxy(w), COLS, getmaxy(w), 0); show_current_field(also, form); while (!finished) { switch (edit_field(form, &c)) { case E_OK: break; case E_UNKNOWN_COMMAND: finished = my_form_driver(form, c); break; default: beep(); break; } show_current_field(also, form); } erase_form(form); free_form(form); } for (c = 0; f[c] != 0; c++) { void ptr = field_userptr(f[c]); free(ptr); free_field(f[c]); } noraw(); nl(); #ifdef NCURSES_MOUSE_VERSION mousemask(0, (mmask_t ) 0); #endif } static void usage(void) { static const char tbl[] = { "Usage: demo_forms [options]" ,"" ," -d make fields dynamic" ," -j value justify (1=left, 2=center, 3=right)" ," -m value set maximum size of dynamic fields" ," -o value specify number of offscreen rows in new_field()" ," -t value specify text to fill fields initially" }; unsigned int j; for (j = 0; j < SIZEOF(tbl); ++j) fprintf(stderr, "%s\n", tbl[j]); exit(EXIT_FAILURE); } int main(int argc, char argv[]) { int ch; setlocale(LC_ALL, ""); while ((ch = getopt(argc, argv, "dj:m:o:t:")) != -1) { switch (ch) { case 'd': d_option = TRUE; break; case 'j': j_value = atoi(optarg); if (j_value < NO_JUSTIFICATION \|\| j_value > JUSTIFY_RIGHT) usage(); break; case 'm': m_value = atoi(optarg); break; case 'o': o_value = atoi(optarg); break; case 't': t_value = optarg; break; default: usage(); } } initscr(); cbreak(); noecho(); raw(); nonl(); /* lets us read ^M's */ intrflush(stdscr, FALSE); keypad(stdscr, TRUE); if (has_colors()) { start_color(); init_pair(1, COLOR_WHITE, COLOR_BLUE); init_pair(2, COLOR_GREEN, COLOR_BLACK); init_pair(3, COLOR_CYAN, COLOR_BLACK); bkgd((chtype) COLOR_PAIR(1)); refresh(); } demo_forms(); endwin(); ExitProgram(EXIT_SUCCESS); } #else int main(void) { printf("This program requires the curses form library\n"); ExitProgram(EXIT_FAILURE); } #endif

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