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652 lines
15 KiB
C
652 lines
15 KiB
C
/****************************************************************************
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* Copyright 2018-2022,2023 Thomas E. Dickey *
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* Copyright 2003-2016,2017 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/*
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* $Id: demo_forms.c,v 1.63 2023/11/11 00:29:53 tom Exp $
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*
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* Demonstrate a variety of functions from the form library.
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* Thomas Dickey - 2003/4/26
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*/
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#include <test.priv.h>
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#if USE_LIBFORM
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#include <edit_field.h>
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typedef struct {
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char *name;
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char *value;
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} MY_DATA;
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static MY_DATA *my_data;
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static int d_option = 0;
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static int j_value = 0;
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static int m_value = 0;
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static int o_value = 0;
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static char *t_value = 0;
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static void
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failed(const char *s)
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{
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perror(s);
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ExitProgram(EXIT_FAILURE);
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}
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static void
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chomp(char *value)
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{
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size_t have = strlen(value);
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while (have != 0 && (value[have - 1] == '\n' || value[have - 1] == '\r')) {
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value[--have] = '\0';
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}
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}
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static int
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trimmed(const char *value)
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{
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int result = (int) strlen(value);
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while (result > 0 && isspace(UChar(value[result - 1]))) {
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--result;
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}
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return result;
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}
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static char *
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get_data(const char *name)
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{
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char *result = t_value;
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if (my_data != 0) {
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int n;
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for (n = 0; my_data[n].name != 0; ++n) {
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if (!strcmp(name, my_data[n].name)) {
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result = my_data[n].value;
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break;
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}
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}
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}
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return result;
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}
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/*
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* Read (possibly) multi-line data with name+value pairs.
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*/
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static void
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read_data(const char *filename)
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{
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FILE *fp = fopen(filename, "r");
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if (fp != 0) {
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char buffer[BUFSIZ];
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char *colon;
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int more = 0;
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int item = 0;
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my_data = typeCalloc(MY_DATA, (size_t) 100); /* FIXME */
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while (fgets(buffer, sizeof(buffer), fp) != 0) {
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chomp(buffer);
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if (more) {
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if (strcmp(buffer, ".")) {
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char *prior = my_data[more - 1].value;
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size_t need = strlen(buffer) + 2 + strlen(prior);
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char *value = typeRealloc(char, need, prior);
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if (value == 0)
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failed("realloc");
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_nc_STRCAT(value, "\n", need);
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_nc_STRCAT(value, buffer, need);
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my_data[more - 1].value = value;
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} else {
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more = 0;
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}
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} else if (*buffer == '#') {
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continue;
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} else if ((colon = strchr(buffer, ':')) != 0) {
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char *name;
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char *value;
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*colon++ = '\0';
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name = strdup(buffer);
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value = strdup(colon);
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if (name == 0 || value == 0)
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failed("strdup");
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my_data[item].name = name;
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my_data[item].value = value;
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more = ++item;
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} else {
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failed("expected a colon");
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}
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}
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fclose(fp);
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} else {
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failed(filename);
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}
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}
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static FIELD *
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make_label(const char *label, int frow, int fcol)
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{
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FIELD *f = new_field(1, (int) strlen(label), frow, fcol, 0, 0);
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if (f) {
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set_field_buffer(f, 0, label);
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set_field_opts(f, (int) ((unsigned) field_opts(f) & (unsigned) ~O_ACTIVE));
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}
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return (f);
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}
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/*
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* Define each field with an extra one, for reflecting "actual" text.
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*/
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static FIELD *
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make_field(const char *label, int frow, int fcol, int rows, int cols)
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{
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FIELD *f = new_field(rows, cols, frow, fcol, o_value, 1);
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if (f) {
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set_field_back(f, A_UNDERLINE);
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/*
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* If -j and -d options are combined, -j loses. It is documented in
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* "Character User Interface Programming", page 12-15 that setting
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* O_STATIC off makes the form library ignore justification.
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*/
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set_field_just(f, j_value);
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if (d_option) {
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if (has_colors()) {
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set_field_fore(f, (chtype) COLOR_PAIR(2));
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set_field_back(f, (A_UNDERLINE | (chtype) COLOR_PAIR(3)));
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} else {
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set_field_fore(f, A_BOLD);
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}
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/*
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* The field_opts_off() call dumps core with Solaris curses,
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* but that is a known bug in Solaris' form library -TD
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*/
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field_opts_off(f, O_STATIC);
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set_max_field(f, m_value);
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}
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init_edit_field(f, get_data(label));
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}
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return (f);
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}
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static void
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display_form(FORM *f)
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{
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WINDOW *w;
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int rows, cols;
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scale_form(f, &rows, &cols);
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/*
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* Put the form at the upper-left corner of the display, with just a box
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* around it.
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*/
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if ((w = newwin(rows + 2, cols + 4, 0, 0)) != (WINDOW *) 0) {
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set_form_win(f, w);
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set_form_sub(f, derwin(w, rows, cols, 1, 2));
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box(w, 0, 0);
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keypad(w, TRUE);
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if (post_form(f) != E_OK)
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wrefresh(w);
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}
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}
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static void
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erase_form(FORM *f)
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{
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WINDOW *w = form_win(f);
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WINDOW *s = form_sub(f);
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unpost_form(f);
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werase(w);
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wrefresh(w);
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delwin(s);
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delwin(w);
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}
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static void
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show_insert_mode(bool insert_mode)
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{
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MvAddStr(5, 57, (insert_mode
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? "form_status: insert "
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: "form_status: overlay"));
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}
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#define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
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static FIELD *
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another_field(FORM *form, const FIELD *const field)
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{
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FIELD **f = form_fields(form);
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FIELD *result = 0;
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int n;
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for (n = 0; f[n] != 0; ++n) {
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if (f[n] != field) {
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result = f[n];
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field_opts_on(result, O_SELECTABLE);
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break;
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}
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}
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return result;
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}
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static int
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my_form_driver(FORM *form, int c)
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{
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static bool insert_mode = TRUE;
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FIELD *field;
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switch (c) {
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case MY_QUIT:
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if (form_driver(form, REQ_VALIDATION) == E_OK)
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return (TRUE);
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break;
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case MY_HELP:
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help_edit_field();
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break;
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case MY_EDT_MODE:
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if ((field = current_field(form)) != 0) {
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set_current_field(form, another_field(form, field));
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if ((unsigned) field_opts(field) & O_EDIT) {
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field_opts_off(field, O_EDIT);
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set_field_status(field, 0);
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} else {
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field_opts_on(field, O_EDIT);
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}
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set_current_field(form, field);
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}
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break;
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case MY_INS_MODE:
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/* there should be a form_status() function, but there is none */
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if (!insert_mode) {
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if (form_driver(form, REQ_INS_MODE) == E_OK) {
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insert_mode = TRUE;
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}
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} else {
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if (form_driver(form, REQ_OVL_MODE) == E_OK) {
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insert_mode = FALSE;
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}
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}
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show_insert_mode(insert_mode);
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refresh();
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break;
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default:
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beep();
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break;
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}
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return (FALSE);
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}
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static void
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show_current_field(WINDOW *win, FORM *form)
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{
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FIELD *field;
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int field_rows, field_cols, field_max;
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int currow, curcol;
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if (has_colors()) {
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wbkgd(win, (chtype) COLOR_PAIR(1));
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}
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werase(win);
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form_getyx(form, currow, curcol);
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wprintw(win, "Cursor: %d,%d", currow, curcol);
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if (data_ahead(form))
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waddstr(win, " ahead");
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if (data_behind(form))
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waddstr(win, " behind");
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waddch(win, '\n');
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if ((field = current_field(form)) != 0) {
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FIELDTYPE *type;
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int nbuf;
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wprintw(win, "Page %d%s, Field %d/%d%s:",
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form_page(form),
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new_page(field) ? "*" : "",
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field_index(field), field_count(form),
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field_arg(field) ? "(arg)" : "");
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if ((type = field_type(field)) != 0) {
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if (type == TYPE_ALNUM)
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waddstr(win, "ALNUM");
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else if (type == TYPE_ALPHA)
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waddstr(win, "ALPHA");
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else if (type == TYPE_ENUM)
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waddstr(win, "ENUM");
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else if (type == TYPE_INTEGER)
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waddstr(win, "INTEGER");
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#ifdef NCURSES_VERSION
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else if (type == TYPE_IPV4)
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waddstr(win, "IPV4");
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#endif
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else if (type == TYPE_NUMERIC)
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waddstr(win, "NUMERIC");
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else if (type == TYPE_REGEXP)
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waddstr(win, "REGEXP");
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else
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waddstr(win, "other");
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}
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if ((unsigned) field_opts(field) & O_EDIT)
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waddstr(win, " editable");
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else
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waddstr(win, " readonly");
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if (field_status(field))
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waddstr(win, " modified");
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if (dynamic_field_info(field, &field_rows, &field_cols, &field_max)
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!= ERR) {
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wprintw(win, " size %dx%d (max %d)",
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field_rows, field_cols, field_max);
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}
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waddch(win, ' ');
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(void) wattrset(win, AttrArg(field_fore(field), 0));
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waddstr(win, "fore");
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wattroff(win, (int) field_fore(field));
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waddch(win, '/');
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(void) wattrset(win, AttrArg(field_back(field), 0));
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waddstr(win, "back");
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wattroff(win, (int) field_back(field));
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wprintw(win, ", pad '%c'", field_pad(field));
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waddstr(win, "\n");
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for (nbuf = 0; nbuf <= 2; ++nbuf) {
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char *buffer;
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if ((buffer = field_buffer(field, nbuf)) != 0) {
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wprintw(win, "buffer %d:", nbuf);
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(void) wattrset(win, A_REVERSE);
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if (nbuf) {
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waddnstr(win, buffer, trimmed(buffer));
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} else {
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waddstr(win, buffer);
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}
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wattroff(win, A_REVERSE);
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waddstr(win, "\n");
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}
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}
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}
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wrefresh(win);
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}
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static void
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demo_forms(void)
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{
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FORM *form;
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FIELD *f[100]; /* will memset to zero */
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int c;
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unsigned n = 0;
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int pg;
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const char *fname;
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static const char *my_enum[] =
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{"first", "second", "third", 0};
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#ifdef NCURSES_MOUSE_VERSION
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mousemask(ALL_MOUSE_EVENTS, (mmask_t *) 0);
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#endif
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help_edit_field();
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MvAddStr(4, 57, "Forms Entry Test");
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show_insert_mode(TRUE);
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refresh();
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/* describe the form */
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memset(f, 0, sizeof(f));
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for (pg = 0; pg < 4; ++pg) {
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char label[80];
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_nc_SPRINTF(label, _nc_SLIMIT(sizeof(label))
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"Sample Form Page %d", pg + 1);
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f[n++] = make_label(label, 0, 15);
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set_new_page(f[n - 1], TRUE);
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switch (pg) {
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default:
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fname = "Last Name";
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f[n++] = make_label(fname, 2, 0);
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f[n++] = make_field(fname, 3, 0, 1, 18);
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set_field_type(f[n - 1], TYPE_ALPHA, 1);
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fname = "First Name";
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f[n++] = make_label(fname, 2, 20);
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f[n++] = make_field(fname, 3, 20, 1, 12);
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set_field_type(f[n - 1], TYPE_ALPHA, 1);
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fname = "Middle Name";
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f[n++] = make_label(fname, 2, 34);
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f[n++] = make_field(fname, 3, 34, 1, 12);
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set_field_type(f[n - 1], TYPE_ALPHA, 1);
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break;
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case 1:
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fname = "Last Name";
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f[n++] = make_label(fname, 2, 0);
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f[n++] = make_field(fname, 3, 0, 1, 12);
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set_field_type(f[n - 1], TYPE_ALPHA, 1);
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fname = "First Name";
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f[n++] = make_label(fname, 2, 14);
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f[n++] = make_field(fname, 3, 14, 1, 12);
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set_field_type(f[n - 1], TYPE_ALPHA, 1);
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fname = "MI";
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f[n++] = make_label(fname, 2, 28);
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f[n++] = make_field(fname, 3, 28, 1, 1);
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set_field_pad(f[n - 1], '?');
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set_field_type(f[n - 1], TYPE_ALPHA, 1);
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fname = "First/Second/Third";
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f[n++] = make_label(fname, 2, 32);
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f[n++] = make_field(fname, 3, 32, 1, 12);
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set_field_type(f[n - 1], TYPE_ENUM, my_enum, 0, 0);
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break;
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case 2:
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fname = "Host Name";
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f[n++] = make_label(fname, 2, 0);
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f[n++] = make_field(fname, 3, 0, 1, 24);
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set_field_type(f[n - 1], TYPE_ALNUM, 1);
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#ifdef NCURSES_VERSION
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fname = "IP Address";
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f[n++] = make_label(fname, 2, 26);
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f[n++] = make_field(fname, 3, 26, 1, 16);
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set_field_type(f[n - 1], TYPE_IPV4, 1);
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#endif
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break;
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case 3:
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fname = "Four digits";
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f[n++] = make_label(fname, 2, 0);
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f[n++] = make_field(fname, 3, 0, 1, 10);
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set_field_type(f[n - 1], TYPE_INTEGER, 4, 0, 0);
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fname = "Numeric";
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f[n++] = make_label(fname, 2, 13);
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f[n++] = make_field(fname, 3, 13, 1, 12);
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set_field_type(f[n - 1], TYPE_NUMERIC, 3, -10000.0, 100000000.0);
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fname = "Phone number";
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f[n++] = make_label(fname, 2, 27);
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f[n++] = make_field(fname, 3, 27, 1, 16);
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set_field_type(f[n - 1], TYPE_REGEXP,
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"^([0-9]-)?[0-9]{3}-[0-9]{3}-[0-9]{4} *$");;
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break;
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}
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fname = "Comments";
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f[n++] = make_label(fname, 5, 0);
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f[n++] = make_field(fname, 6, 0, 4, 46);
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init_edit_field(f[n - 1], get_data(fname));
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}
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f[n] = (FIELD *) 0;
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if ((form = new_form(f)) != 0) {
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WINDOW *w;
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WINDOW *also;
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int finished = 0;
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|
|
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++) {
|
|
free_edit_field(f[c]);
|
|
free_field(f[c]);
|
|
}
|
|
noraw();
|
|
nl();
|
|
|
|
#ifdef NCURSES_MOUSE_VERSION
|
|
mousemask(0, (mmask_t *) 0);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
usage(int ok)
|
|
{
|
|
static const char *tbl[] =
|
|
{
|
|
"Usage: demo_forms [options] [data file]"
|
|
,""
|
|
,USAGE_COMMON
|
|
,"Options:"
|
|
," -d make fields dynamic"
|
|
," -j NUM justify (1=left, 2=center, 3=right)"
|
|
," -m NUM set maximum size of dynamic fields"
|
|
," -o NUM specify number of offscreen rows in new_field()"
|
|
," -t NUM specify text to fill fields initially"
|
|
};
|
|
unsigned int j;
|
|
for (j = 0; j < SIZEOF(tbl); ++j)
|
|
fprintf(stderr, "%s\n", tbl[j]);
|
|
ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
|
|
}
|
|
/* *INDENT-OFF* */
|
|
VERSION_COMMON()
|
|
/* *INDENT-ON* */
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int ch;
|
|
|
|
setlocale(LC_ALL, "");
|
|
|
|
while ((ch = getopt(argc, argv, OPTS_COMMON "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(FALSE);
|
|
break;
|
|
case 'm':
|
|
m_value = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
o_value = atoi(optarg);
|
|
break;
|
|
case 't':
|
|
t_value = optarg;
|
|
break;
|
|
case OPTS_VERSION:
|
|
show_version(argv);
|
|
ExitProgram(EXIT_SUCCESS);
|
|
default:
|
|
usage(ch == OPTS_USAGE);
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
while (optind < argc) {
|
|
read_data(argv[optind++]);
|
|
}
|
|
|
|
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
|