2 * $Id: edit_field.c,v 1.11 2005/10/01 16:21:55 tom Exp $
4 * A wrapper for form_driver() which keeps track of the user's editing changes
5 * for each field, and makes the result available as a null-terminated string
6 * in field_buffer(field,1).
8 * Thomas Dickey - 2003/4/26.
11 #include <test.priv.h>
15 #include <edit_field.h>
24 CTRL('A'), REQ_NEXT_CHOICE, ""
27 CTRL('B'), REQ_PREV_WORD, "go to previous word"
30 CTRL('C'), REQ_CLR_EOL, "clear to end of line"
33 CTRL('D'), REQ_DOWN_FIELD, "move downward to field"
36 CTRL('E'), REQ_END_FIELD, "go to end of field"
39 CTRL('F'), REQ_NEXT_PAGE, "go to next page"
42 CTRL('G'), REQ_DEL_WORD, "delete current word"
45 CTRL('H'), REQ_DEL_PREV, "delete previous character"
48 CTRL('I'), REQ_INS_CHAR, "insert character"
51 CTRL('K'), REQ_CLR_EOF, "clear to end of field"
54 CTRL('L'), REQ_LEFT_FIELD, "go to field to left"
57 CTRL('M'), REQ_NEW_LINE, "insert/overlay new line"
60 CTRL('N'), REQ_NEXT_FIELD, "go to next field"
63 CTRL('O'), REQ_INS_LINE, "insert blank line at cursor"
66 CTRL('P'), REQ_PREV_FIELD, "go to previous field"
69 CTRL('Q'), MY_QUIT, "exit form"
72 CTRL('R'), REQ_RIGHT_FIELD, "go to field to right"
75 CTRL('S'), REQ_BEG_FIELD, "go to beginning of field"
78 CTRL('T'), MY_EDT_MODE, "toggle O_EDIT mode, clear field status",
81 CTRL('U'), REQ_UP_FIELD, "move upward to field"
84 CTRL('V'), REQ_DEL_CHAR, "delete character"
87 CTRL('W'), REQ_NEXT_WORD, "go to next word"
90 CTRL('X'), REQ_CLR_FIELD, "clear field"
93 CTRL('Y'), REQ_DEL_LINE, "delete line"
96 CTRL('Z'), REQ_PREV_CHOICE, ""
99 CTRL('['), MY_QUIT, "exit form"
102 CTRL(']'), MY_INS_MODE, "toggle REQ_INS_MODE/REQ_OVL_MODE",
105 KEY_F(1), MY_HELP, "show this screen",
108 KEY_BACKSPACE, REQ_DEL_PREV, "delete previous character"
111 KEY_DOWN, REQ_DOWN_CHAR, "move down 1 character"
114 KEY_END, REQ_LAST_FIELD, "go to last field"
117 KEY_HOME, REQ_FIRST_FIELD, "go to first field"
120 KEY_LEFT, REQ_LEFT_CHAR, "move left 1 character"
123 KEY_LL, REQ_LAST_FIELD, "go to last field"
126 KEY_NEXT, REQ_NEXT_FIELD, "go to next field"
129 KEY_NPAGE, REQ_NEXT_PAGE, "go to next page"
132 KEY_PPAGE, REQ_PREV_PAGE, "go to previous page"
135 KEY_PREVIOUS, REQ_PREV_FIELD, "go to previous field"
138 KEY_RIGHT, REQ_RIGHT_CHAR, "move right 1 character"
141 KEY_UP, REQ_UP_CHAR, "move up 1 character"
145 static WINDOW *old_window;
151 old_window = dupwin(curscr);
157 touchwin(old_window);
158 wnoutrefresh(old_window);
164 * Display a temporary window listing the keystroke-commands we recognize.
167 help_edit_field(void)
173 int wide = COLS - ((x0 + 1) * 2);
174 int high = LINES - ((y0 + 1) * 2);
175 WINDOW *help = newwin(high, wide, y0, x0);
176 WINDOW *data = newpad(2 + SIZEOF(commands), wide - 4);
184 waddstr(data, "Defined form edit/traversal keys:\n");
185 for (n = 0; n < SIZEOF(commands); ++n) {
187 #ifdef NCURSES_VERSION
188 if ((name = form_request_name(commands[n].result)) == 0)
190 name = commands[n].help;
191 wprintw(data, "%s -- %s\n",
192 keyname(commands[n].code),
193 name != 0 ? name : commands[n].help);
195 waddstr(data, "Arrow keys move within a field as you would expect.");
249 pnoutrefresh(data, y1, 0, y0 + 1, x0 + 1, high, wide);
251 } while ((ch = wgetch(data)) != ERR && ch != QUIT && ch != ESCAPE);
261 offset_in_field(FORM * form)
263 FIELD *field = current_field(form);
264 return form->curcol + form->currow * field->dcols;
268 edit_field(FORM * form, int *result)
270 int ch = wgetch(form_win(form));
278 int before_row = form->currow;
279 int before_col = form->curcol;
280 int before_off = offset_in_field(form);
282 before = current_field(form);
283 set_field_back(before, A_NORMAL);
285 set_field_back(before, A_REVERSE);
286 } else if (ch <= MAX_FORM_COMMAND) {
287 set_field_back(before, A_UNDERLINE);
291 for (n = 0; n < SIZEOF(commands); ++n) {
292 if (commands[n].code == ch) {
293 *result = commands[n].result;
298 status = form_driver(form, *result);
300 if (status == E_OK) {
301 bool modified = TRUE;
304 if ((buffer = field_buffer(before, 1)) != 0)
305 length = atoi(buffer);
306 if (length < before_off)
313 if (before_row + 1 == before->rows)
320 if (length > before_off)
325 if (before_col > 0) {
327 } else if (before_row > 0) {
328 length -= before->cols + before_col;
333 length += before->cols;
336 /* FIXME: finish these */
337 case REQ_DEL_LINE: /* delete line */
338 case REQ_DEL_WORD: /* delete word at cursor */
339 case REQ_INS_CHAR: /* insert blank char at cursor */
340 case REQ_INS_LINE: /* insert blank line at cursor */
341 case REQ_INS_MODE: /* begin insert mode */
342 case REQ_OVL_MODE: /* begin overlay mode */
344 /* ignore all of the motion commands */
345 case REQ_SCR_BCHAR: /* FALLTHRU */
346 case REQ_SCR_BHPAGE: /* FALLTHRU */
347 case REQ_SCR_BLINE: /* FALLTHRU */
348 case REQ_SCR_BPAGE: /* FALLTHRU */
349 case REQ_SCR_FCHAR: /* FALLTHRU */
350 case REQ_SCR_FHPAGE: /* FALLTHRU */
351 case REQ_SCR_FLINE: /* FALLTHRU */
352 case REQ_SCR_FPAGE: /* FALLTHRU */
353 case REQ_SCR_HBHALF: /* FALLTHRU */
354 case REQ_SCR_HBLINE: /* FALLTHRU */
355 case REQ_SCR_HFHALF: /* FALLTHRU */
356 case REQ_SCR_HFLINE: /* FALLTHRU */
357 case REQ_BEG_FIELD: /* FALLTHRU */
358 case REQ_BEG_LINE: /* FALLTHRU */
359 case REQ_DOWN_CHAR: /* FALLTHRU */
360 case REQ_DOWN_FIELD: /* FALLTHRU */
361 case REQ_END_FIELD: /* FALLTHRU */
362 case REQ_END_LINE: /* FALLTHRU */
363 case REQ_FIRST_FIELD: /* FALLTHRU */
364 case REQ_FIRST_PAGE: /* FALLTHRU */
365 case REQ_LAST_FIELD: /* FALLTHRU */
366 case REQ_LAST_PAGE: /* FALLTHRU */
367 case REQ_LEFT_CHAR: /* FALLTHRU */
368 case REQ_LEFT_FIELD: /* FALLTHRU */
369 case REQ_NEXT_CHAR: /* FALLTHRU */
370 case REQ_NEXT_CHOICE: /* FALLTHRU */
371 case REQ_NEXT_FIELD: /* FALLTHRU */
372 case REQ_NEXT_LINE: /* FALLTHRU */
373 case REQ_NEXT_PAGE: /* FALLTHRU */
374 case REQ_NEXT_WORD: /* FALLTHRU */
375 case REQ_PREV_CHAR: /* FALLTHRU */
376 case REQ_PREV_CHOICE: /* FALLTHRU */
377 case REQ_PREV_FIELD: /* FALLTHRU */
378 case REQ_PREV_LINE: /* FALLTHRU */
379 case REQ_PREV_PAGE: /* FALLTHRU */
380 case REQ_PREV_WORD: /* FALLTHRU */
381 case REQ_RIGHT_CHAR: /* FALLTHRU */
382 case REQ_RIGHT_FIELD: /* FALLTHRU */
383 case REQ_SFIRST_FIELD: /* FALLTHRU */
384 case REQ_SLAST_FIELD: /* FALLTHRU */
385 case REQ_SNEXT_FIELD: /* FALLTHRU */
386 case REQ_SPREV_FIELD: /* FALLTHRU */
387 case REQ_UP_CHAR: /* FALLTHRU */
388 case REQ_UP_FIELD: /* FALLTHRU */
389 case REQ_VALIDATION: /* FALLTHRU */
395 if (ch >= MIN_FORM_COMMAND) {
397 } else if (isprint(ch)) {
404 * If we do not force a re-validation, then field_buffer 0 will
405 * be lagging by one character.
407 if (modified && form_driver(form, REQ_VALIDATION) == E_OK && *result
411 sprintf(lengths, "%d", length);
412 set_field_buffer(before, 1, lengths);
415 if ((after = current_field(form)) != before)
416 set_field_back(before, A_UNDERLINE);
421 extern void no_edit_field(void);