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29 * $Id: edit_field.c,v 1.15 2008/12/20 19:23:01 tom Exp $
31 * A wrapper for form_driver() which keeps track of the user's editing changes
32 * for each field, and makes the result available as a null-terminated string
33 * in field_buffer(field,1).
35 * Thomas Dickey - 2003/4/26.
38 #include <test.priv.h>
42 #include <edit_field.h>
51 CTRL('A'), REQ_NEXT_CHOICE, ""
54 CTRL('B'), REQ_PREV_WORD, "go to previous word"
57 CTRL('C'), REQ_CLR_EOL, "clear to end of line"
60 CTRL('D'), REQ_DOWN_FIELD, "move downward to field"
63 CTRL('E'), REQ_END_FIELD, "go to end of field"
66 CTRL('F'), REQ_NEXT_PAGE, "go to next page"
69 CTRL('G'), REQ_DEL_WORD, "delete current word"
72 CTRL('H'), REQ_DEL_PREV, "delete previous character"
75 CTRL('I'), REQ_INS_CHAR, "insert character"
78 CTRL('K'), REQ_CLR_EOF, "clear to end of field"
81 CTRL('L'), REQ_LEFT_FIELD, "go to field to left"
84 CTRL('M'), REQ_NEW_LINE, "insert/overlay new line"
87 CTRL('N'), REQ_NEXT_FIELD, "go to next field"
90 CTRL('O'), REQ_INS_LINE, "insert blank line at cursor"
93 CTRL('P'), REQ_PREV_FIELD, "go to previous field"
96 CTRL('Q'), MY_QUIT, "exit form"
99 CTRL('R'), REQ_RIGHT_FIELD, "go to field to right"
102 CTRL('S'), REQ_BEG_FIELD, "go to beginning of field"
105 CTRL('T'), MY_EDT_MODE, "toggle O_EDIT mode, clear field status",
108 CTRL('U'), REQ_UP_FIELD, "move upward to field"
111 CTRL('V'), REQ_DEL_CHAR, "delete character"
114 CTRL('W'), REQ_NEXT_WORD, "go to next word"
117 CTRL('X'), REQ_CLR_FIELD, "clear field"
120 CTRL('Y'), REQ_DEL_LINE, "delete line"
123 CTRL('Z'), REQ_PREV_CHOICE, ""
126 CTRL('['), MY_QUIT, "exit form"
129 CTRL(']'), MY_INS_MODE, "toggle REQ_INS_MODE/REQ_OVL_MODE",
132 KEY_F(1), MY_HELP, "show this screen",
135 KEY_BACKSPACE, REQ_DEL_PREV, "delete previous character"
138 KEY_DOWN, REQ_DOWN_CHAR, "move down 1 character"
141 KEY_END, REQ_LAST_FIELD, "go to last field"
144 KEY_HOME, REQ_FIRST_FIELD, "go to first field"
147 KEY_LEFT, REQ_LEFT_CHAR, "move left 1 character"
150 KEY_LL, REQ_LAST_FIELD, "go to last field"
153 KEY_NEXT, REQ_NEXT_FIELD, "go to next field"
156 KEY_NPAGE, REQ_NEXT_PAGE, "go to next page"
159 KEY_PPAGE, REQ_PREV_PAGE, "go to previous page"
162 KEY_PREVIOUS, REQ_PREV_FIELD, "go to previous field"
165 KEY_RIGHT, REQ_RIGHT_CHAR, "move right 1 character"
168 KEY_UP, REQ_UP_CHAR, "move up 1 character"
172 static WINDOW *old_window;
178 old_window = dupwin(curscr);
184 touchwin(old_window);
185 wnoutrefresh(old_window);
191 * Display a temporary window listing the keystroke-commands we recognize.
194 help_edit_field(void)
200 int wide = COLS - ((x0 + 1) * 2);
201 int high = LINES - ((y0 + 1) * 2);
202 WINDOW *help = newwin(high, wide, y0, x0);
203 WINDOW *data = newpad(2 + SIZEOF(commands), wide - 4);
211 waddstr(data, "Defined form edit/traversal keys:\n");
212 for (n = 0; n < SIZEOF(commands); ++n) {
214 #ifdef NCURSES_VERSION
215 if ((name = form_request_name(commands[n].result)) == 0)
217 name = commands[n].help;
218 wprintw(data, "%s -- %s\n",
219 keyname(commands[n].code),
220 name != 0 ? name : commands[n].help);
222 waddstr(data, "Arrow keys move within a field as you would expect.");
276 pnoutrefresh(data, y1, 0, y0 + 1, x0 + 1, high, wide);
278 } while ((ch = wgetch(data)) != ERR && ch != QUIT && ch != ESCAPE);
288 offset_in_field(FORM * form)
290 FIELD *field = current_field(form);
291 return form->curcol + form->currow * field->dcols;
295 inactive_field(FIELD * f)
297 FieldAttrs *ptr = (FieldAttrs *) field_userptr(f);
298 set_field_back(f, ptr->background);
302 edit_field(FORM * form, int *result)
304 int ch = wgetch(form_win(form));
311 int before_row = form->currow;
312 int before_col = form->curcol;
313 int before_off = offset_in_field(form);
315 before = current_field(form);
316 set_field_back(before, A_NORMAL);
318 set_field_back(before, A_REVERSE);
319 } else if (ch <= MAX_FORM_COMMAND) {
320 inactive_field(before);
324 for (n = 0; n < SIZEOF(commands); ++n) {
325 if (commands[n].code == ch) {
326 *result = commands[n].result;
331 status = form_driver(form, *result);
333 if (status == E_OK) {
334 bool modified = TRUE;
337 if ((buffer = field_buffer(before, 1)) != 0)
338 length = atoi(buffer);
339 if (length < before_off)
346 if (before_row + 1 == before->rows)
353 if (length > before_off)
358 if (before_col > 0) {
360 } else if (before_row > 0) {
361 length -= before->cols + before_col;
366 length += before->cols;
369 /* FIXME: finish these */
370 case REQ_DEL_LINE: /* delete line */
371 case REQ_DEL_WORD: /* delete word at cursor */
372 case REQ_INS_CHAR: /* insert blank char at cursor */
373 case REQ_INS_LINE: /* insert blank line at cursor */
374 case REQ_INS_MODE: /* begin insert mode */
375 case REQ_OVL_MODE: /* begin overlay mode */
377 /* ignore all of the motion commands */
378 case REQ_SCR_BCHAR: /* FALLTHRU */
379 case REQ_SCR_BHPAGE: /* FALLTHRU */
380 case REQ_SCR_BLINE: /* FALLTHRU */
381 case REQ_SCR_BPAGE: /* FALLTHRU */
382 case REQ_SCR_FCHAR: /* FALLTHRU */
383 case REQ_SCR_FHPAGE: /* FALLTHRU */
384 case REQ_SCR_FLINE: /* FALLTHRU */
385 case REQ_SCR_FPAGE: /* FALLTHRU */
386 case REQ_SCR_HBHALF: /* FALLTHRU */
387 case REQ_SCR_HBLINE: /* FALLTHRU */
388 case REQ_SCR_HFHALF: /* FALLTHRU */
389 case REQ_SCR_HFLINE: /* FALLTHRU */
390 case REQ_BEG_FIELD: /* FALLTHRU */
391 case REQ_BEG_LINE: /* FALLTHRU */
392 case REQ_DOWN_CHAR: /* FALLTHRU */
393 case REQ_DOWN_FIELD: /* FALLTHRU */
394 case REQ_END_FIELD: /* FALLTHRU */
395 case REQ_END_LINE: /* FALLTHRU */
396 case REQ_FIRST_FIELD: /* FALLTHRU */
397 case REQ_FIRST_PAGE: /* FALLTHRU */
398 case REQ_LAST_FIELD: /* FALLTHRU */
399 case REQ_LAST_PAGE: /* FALLTHRU */
400 case REQ_LEFT_CHAR: /* FALLTHRU */
401 case REQ_LEFT_FIELD: /* FALLTHRU */
402 case REQ_NEXT_CHAR: /* FALLTHRU */
403 case REQ_NEXT_CHOICE: /* FALLTHRU */
404 case REQ_NEXT_FIELD: /* FALLTHRU */
405 case REQ_NEXT_LINE: /* FALLTHRU */
406 case REQ_NEXT_PAGE: /* FALLTHRU */
407 case REQ_NEXT_WORD: /* FALLTHRU */
408 case REQ_PREV_CHAR: /* FALLTHRU */
409 case REQ_PREV_CHOICE: /* FALLTHRU */
410 case REQ_PREV_FIELD: /* FALLTHRU */
411 case REQ_PREV_LINE: /* FALLTHRU */
412 case REQ_PREV_PAGE: /* FALLTHRU */
413 case REQ_PREV_WORD: /* FALLTHRU */
414 case REQ_RIGHT_CHAR: /* FALLTHRU */
415 case REQ_RIGHT_FIELD: /* FALLTHRU */
416 case REQ_SFIRST_FIELD: /* FALLTHRU */
417 case REQ_SLAST_FIELD: /* FALLTHRU */
418 case REQ_SNEXT_FIELD: /* FALLTHRU */
419 case REQ_SPREV_FIELD: /* FALLTHRU */
420 case REQ_UP_CHAR: /* FALLTHRU */
421 case REQ_UP_FIELD: /* FALLTHRU */
422 case REQ_VALIDATION: /* FALLTHRU */
428 if (ch >= MIN_FORM_COMMAND) {
430 } else if (isprint(ch)) {
437 * If we do not force a re-validation, then field_buffer 0 will
438 * be lagging by one character.
440 if (modified && form_driver(form, REQ_VALIDATION) == E_OK && *result
444 sprintf(lengths, "%d", length);
445 set_field_buffer(before, 1, lengths);
448 if (current_field(form) != before)
449 inactive_field(before);
454 extern void no_edit_field(void);