mb/google/brya/var/orisa: Update Type C DisplayPort HPD Configuration
[coreboot2.git] / payloads / libpayload / curses / form / frm_def.c
blob487b161e0be5fddfabaeb67a26780a32551cf23f
1 /****************************************************************************
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer, 1995,1997 *
31 ****************************************************************************/
33 #include "form.priv.h"
35 MODULE_ID("$Id: frm_def.c,v 1.25 2010/01/23 21:14:36 tom Exp $")
37 /* this can't be readonly */
38 static FORM default_form =
40 0, /* status */
41 0, /* rows */
42 0, /* cols */
43 0, /* currow */
44 0, /* curcol */
45 0, /* toprow */
46 0, /* begincol */
47 -1, /* maxfield */
48 -1, /* maxpage */
49 -1, /* curpage */
50 ALL_FORM_OPTS, /* opts */
51 (WINDOW *)0, /* win */
52 (WINDOW *)0, /* sub */
53 (WINDOW *)0, /* w */
54 (FIELD **)0, /* field */
55 (FIELD *)0, /* current */
56 (_PAGE *) 0, /* page */
57 (char *)0, /* usrptr */
58 NULL, /* forminit */
59 NULL, /* formterm */
60 NULL, /* fieldinit */
61 NULL /* fieldterm */
64 NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form = &default_form;
66 /*---------------------------------------------------------------------------
67 | Facility : libnform
68 | Function : static FIELD *Insert_Field_By_Position(
69 | FIELD *new_field,
70 | FIELD *head )
72 | Description : Insert new_field into sorted fieldlist with head "head"
73 | and return new head of sorted fieldlist. Sorting
74 | criteria is (row,column). This is a circular list.
76 | Return Values : New head of sorted fieldlist
77 +--------------------------------------------------------------------------*/
78 static FIELD *
79 Insert_Field_By_Position(FIELD *newfield, FIELD *head)
81 FIELD *current, *newhead;
83 assert(newfield);
85 if (!head)
86 { /* empty list is trivial */
87 newhead = newfield->snext = newfield->sprev = newfield;
89 else
91 newhead = current = head;
92 while ((current->frow < newfield->frow) ||
93 ((current->frow == newfield->frow) &&
94 (current->fcol < newfield->fcol)))
96 current = current->snext;
97 if (current == head)
98 { /* We cycled through. Reset head to indicate that */
99 head = (FIELD *)0;
100 break;
103 /* we leave the loop with current pointing to the field after newfield */
104 newfield->snext = current;
105 newfield->sprev = current->sprev;
106 newfield->snext->sprev = newfield;
107 newfield->sprev->snext = newfield;
108 if (current == head)
109 newhead = newfield;
111 return (newhead);
114 /*---------------------------------------------------------------------------
115 | Facility : libnform
116 | Function : static void Disconnect_Fields(FORM *form)
118 | Description : Break association between form and array of fields.
120 | Return Values : -
121 +--------------------------------------------------------------------------*/
122 static void
123 Disconnect_Fields(FORM *form)
125 if (form->field)
127 FIELD **fields;
129 for (fields = form->field; *fields; fields++)
131 if (form == (*fields)->form)
132 (*fields)->form = (FORM *)0;
135 form->rows = form->cols = 0;
136 form->maxfield = form->maxpage = -1;
137 form->field = (FIELD **)0;
138 if (form->page)
139 free(form->page);
140 form->page = (_PAGE *) 0;
144 /*---------------------------------------------------------------------------
145 | Facility : libnform
146 | Function : static int Connect_Fields(FORM *form, FIELD **fields)
148 | Description : Set association between form and array of fields.
150 | Return Values : E_OK - no error
151 | E_CONNECTED - a field is already connected
152 | E_BAD_ARGUMENT - Invalid form pointer or field array
153 | E_SYSTEM_ERROR - not enough memory
154 +--------------------------------------------------------------------------*/
155 static int
156 Connect_Fields(FORM *form, FIELD **fields)
158 int field_cnt, j;
159 int page_nr;
160 int maximum_row_in_field, maximum_col_in_field;
161 _PAGE *pg;
163 T((T_CALLED("Connect_Fields(%p,%p)"), (void *)form, (void *)fields));
165 assert(form);
167 form->field = fields;
168 form->maxfield = 0;
169 form->maxpage = 0;
171 if (!fields)
172 RETURN(E_OK);
174 page_nr = 0;
175 /* store formpointer in fields and count pages */
176 for (field_cnt = 0; fields[field_cnt]; field_cnt++)
178 if (fields[field_cnt]->form)
179 RETURN(E_CONNECTED);
180 if (field_cnt == 0 ||
181 (fields[field_cnt]->status & _NEWPAGE))
182 page_nr++;
183 fields[field_cnt]->form = form;
185 if (field_cnt == 0 || (short)field_cnt < 0)
186 RETURN(E_BAD_ARGUMENT);
188 /* allocate page structures */
189 if ((pg = typeMalloc(_PAGE, page_nr)) != (_PAGE *) 0)
191 T((T_CREATE("_PAGE %p"), (void *)pg));
192 form->page = pg;
194 else
195 RETURN(E_SYSTEM_ERROR);
197 /* Cycle through fields and calculate page boundaries as well as
198 size of the form */
199 for (j = 0; j < field_cnt; j++)
201 if (j == 0)
202 pg->pmin = j;
203 else
205 if (fields[j]->status & _NEWPAGE)
207 pg->pmax = j - 1;
208 pg++;
209 pg->pmin = j;
213 maximum_row_in_field = fields[j]->frow + fields[j]->rows;
214 maximum_col_in_field = fields[j]->fcol + fields[j]->cols;
216 if (form->rows < maximum_row_in_field)
217 form->rows = maximum_row_in_field;
218 if (form->cols < maximum_col_in_field)
219 form->cols = maximum_col_in_field;
222 pg->pmax = field_cnt - 1;
223 form->maxfield = field_cnt;
224 form->maxpage = page_nr;
226 /* Sort fields on form pages */
227 for (page_nr = 0; page_nr < form->maxpage; page_nr++)
229 FIELD *fld = (FIELD *)0;
231 for (j = form->page[page_nr].pmin; j <= form->page[page_nr].pmax; j++)
233 fields[j]->index = j;
234 fields[j]->page = page_nr;
235 fld = Insert_Field_By_Position(fields[j], fld);
237 if (fld)
239 form->page[page_nr].smin = fld->index;
240 form->page[page_nr].smax = fld->sprev->index;
242 else
244 form->page[page_nr].smin = 0;
245 form->page[page_nr].smax = 0;
248 RETURN(E_OK);
251 /*---------------------------------------------------------------------------
252 | Facility : libnform
253 | Function : static int Associate_Fields(FORM *form, FIELD **fields)
255 | Description : Set association between form and array of fields.
256 | If there are fields, position to first active field.
258 | Return Values : E_OK - success
259 | E_BAD_ARGUMENT - Invalid form pointer or field array
260 | E_CONNECTED - a field is already connected
261 | E_SYSTEM_ERROR - not enough memory
262 +--------------------------------------------------------------------------*/
263 NCURSES_INLINE static int
264 Associate_Fields(FORM *form, FIELD **fields)
266 int res = Connect_Fields(form, fields);
268 if (res == E_OK)
270 if (form->maxpage > 0)
272 form->curpage = 0;
273 form_driver(form, FIRST_ACTIVE_MAGIC);
275 else
277 form->curpage = -1;
278 form->current = (FIELD *)0;
281 return (res);
284 /*---------------------------------------------------------------------------
285 | Facility : libnform
286 | Function : FORM *new_form_sp(SCREEN* sp, FIELD** fields )
288 | Description : Create new form with given array of fields.
290 | Return Values : Pointer to form. NULL if error occurred.
291 ! Set errno:
292 | E_OK - success
293 | E_BAD_ARGUMENT - Invalid form pointer or field array
294 | E_CONNECTED - a field is already connected
295 | E_SYSTEM_ERROR - not enough memory
296 +--------------------------------------------------------------------------*/
297 NCURSES_EXPORT(FORM *)
298 NCURSES_SP_NAME(new_form) (NCURSES_SP_DCLx FIELD **fields)
300 int err = E_SYSTEM_ERROR;
301 FORM *form = (FORM *)0;
303 T((T_CALLED("new_form(%p,%p)"), (void *)SP_PARM, (void *)fields));
305 if (IsValidScreen(SP_PARM))
307 form = typeMalloc(FORM, 1);
309 if (form)
311 T((T_CREATE("form %p"), (void *)form));
312 *form = *_nc_Default_Form;
313 /* This ensures win and sub are always non-null,
314 so we can derive always the SCREEN that this form is
315 running on. */
316 form->win = StdScreen(SP_PARM);
317 form->sub = StdScreen(SP_PARM);
318 if ((err = Associate_Fields(form, fields)) != E_OK)
320 free_form(form);
321 form = (FORM *)0;
326 if (!form)
327 SET_ERROR(err);
329 returnForm(form);
332 /*---------------------------------------------------------------------------
333 | Facility : libnform
334 | Function : FORM* new_form(FIELD** fields )
336 | Description : Create new form with given array of fields.
338 | Return Values : Pointer to form. NULL if error occurred.
339 ! Set errno:
340 | E_OK - success
341 | E_BAD_ARGUMENT - Invalid form pointer or field array
342 | E_CONNECTED - a field is already connected
343 | E_SYSTEM_ERROR - not enough memory
344 +--------------------------------------------------------------------------*/
345 #if NCURSES_SP_FUNCS
346 NCURSES_EXPORT(FORM *)
347 new_form(FIELD **fields)
349 return NCURSES_SP_NAME(new_form) (CURRENT_SCREEN, fields);
351 #endif
353 /*---------------------------------------------------------------------------
354 | Facility : libnform
355 | Function : int free_form( FORM *form )
357 | Description : Release internal memory associated with form.
359 | Return Values : E_OK - no error
360 | E_BAD_ARGUMENT - invalid form pointer
361 | E_POSTED - form is posted
362 +--------------------------------------------------------------------------*/
363 NCURSES_EXPORT(int)
364 free_form(FORM *form)
366 T((T_CALLED("free_form(%p)"), (void *)form));
368 if (!form)
369 RETURN(E_BAD_ARGUMENT);
371 if (form->status & _POSTED)
372 RETURN(E_POSTED);
374 Disconnect_Fields(form);
375 if (form->page)
376 free(form->page);
377 free(form);
379 RETURN(E_OK);
382 /*---------------------------------------------------------------------------
383 | Facility : libnform
384 | Function : int set_form_fields( FORM *form, FIELD **fields )
386 | Description : Set a new association of an array of fields to a form
388 | Return Values : E_OK - no error
389 | E_BAD_ARGUMENT - Invalid form pointer or field array
390 | E_CONNECTED - a field is already connected
391 | E_POSTED - form is posted
392 | E_SYSTEM_ERROR - not enough memory
393 +--------------------------------------------------------------------------*/
394 NCURSES_EXPORT(int)
395 set_form_fields(FORM *form, FIELD **fields)
397 FIELD **old;
398 int res;
400 T((T_CALLED("set_form_fields(%p,%p)"), (void *)form, (void *)fields));
402 if (!form)
403 RETURN(E_BAD_ARGUMENT);
405 if (form->status & _POSTED)
406 RETURN(E_POSTED);
408 old = form->field;
409 Disconnect_Fields(form);
411 if ((res = Associate_Fields(form, fields)) != E_OK)
412 Connect_Fields(form, old);
414 RETURN(res);
417 /*---------------------------------------------------------------------------
418 | Facility : libnform
419 | Function : FIELD **form_fields( const FORM *form )
421 | Description : Retrieve array of fields
423 | Return Values : Pointer to field array
424 +--------------------------------------------------------------------------*/
425 NCURSES_EXPORT(FIELD **)
426 form_fields(const FORM *form)
428 T((T_CALLED("form_field(%p)"), (const void *)form));
429 returnFieldPtr(Normalize_Form(form)->field);
432 /*---------------------------------------------------------------------------
433 | Facility : libnform
434 | Function : int field_count( const FORM *form )
436 | Description : Retrieve number of fields
438 | Return Values : Number of fields, -1 if none are defined
439 +--------------------------------------------------------------------------*/
440 NCURSES_EXPORT(int)
441 field_count(const FORM *form)
443 T((T_CALLED("field_count(%p)"), (const void *)form));
445 returnCode(Normalize_Form(form)->maxfield);
448 /* frm_def.c ends here */