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-rw-r--r--contrib/ncurses/form/frm_def.c256
1 files changed, 141 insertions, 115 deletions
diff --git a/contrib/ncurses/form/frm_def.c b/contrib/ncurses/form/frm_def.c
index 0802e49a4114..d15237e911e2 100644
--- a/contrib/ncurses/form/frm_def.c
+++ b/contrib/ncurses/form/frm_def.c
@@ -1,5 +1,5 @@
/****************************************************************************
- * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2005,2006 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 *
@@ -27,37 +27,38 @@
****************************************************************************/
/****************************************************************************
- * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
+ * Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
#include "form.priv.h"
-MODULE_ID("$Id: frm_def.c,v 1.10 2000/12/10 02:09:38 tom Exp $")
+MODULE_ID("$Id: frm_def.c,v 1.20 2006/11/04 16:57:15 tom Exp $")
/* this can't be readonly */
-static FORM default_form = {
- 0, /* status */
- 0, /* rows */
- 0, /* cols */
- 0, /* currow */
- 0, /* curcol */
- 0, /* toprow */
- 0, /* begincol */
- -1, /* maxfield */
- -1, /* maxpage */
- -1, /* curpage */
- ALL_FORM_OPTS, /* opts */
- (WINDOW *)0, /* win */
- (WINDOW *)0, /* sub */
- (WINDOW *)0, /* w */
- (FIELD **)0, /* field */
- (FIELD *)0, /* current */
- (_PAGE *)0, /* page */
- (char *)0, /* usrptr */
- NULL, /* forminit */
- NULL, /* formterm */
- NULL, /* fieldinit */
- NULL /* fieldterm */
+static FORM default_form =
+{
+ 0, /* status */
+ 0, /* rows */
+ 0, /* cols */
+ 0, /* currow */
+ 0, /* curcol */
+ 0, /* toprow */
+ 0, /* begincol */
+ -1, /* maxfield */
+ -1, /* maxpage */
+ -1, /* curpage */
+ ALL_FORM_OPTS, /* opts */
+ (WINDOW *)0, /* win */
+ (WINDOW *)0, /* sub */
+ (WINDOW *)0, /* w */
+ (FIELD **)0, /* field */
+ (FIELD *)0, /* current */
+ (_PAGE *) 0, /* page */
+ (char *)0, /* usrptr */
+ NULL, /* forminit */
+ NULL, /* formterm */
+ NULL, /* fieldinit */
+ NULL /* fieldterm */
};
NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form = &default_form;
@@ -74,39 +75,40 @@ NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form = &default_form;
|
| Return Values : New head of sorted fieldlist
+--------------------------------------------------------------------------*/
-static FIELD *Insert_Field_By_Position(FIELD *newfield, FIELD *head)
+static FIELD *
+Insert_Field_By_Position(FIELD *newfield, FIELD *head)
{
FIELD *current, *newhead;
-
+
assert(newfield);
if (!head)
- { /* empty list is trivial */
+ { /* empty list is trivial */
newhead = newfield->snext = newfield->sprev = newfield;
}
else
{
newhead = current = head;
- while((current->frow < newfield->frow) ||
- ((current->frow==newfield->frow) &&
- (current->fcol < newfield->fcol)) )
+ while ((current->frow < newfield->frow) ||
+ ((current->frow == newfield->frow) &&
+ (current->fcol < newfield->fcol)))
{
current = current->snext;
- if (current==head)
- { /* We cycled through. Reset head to indicate that */
+ if (current == head)
+ { /* We cycled through. Reset head to indicate that */
head = (FIELD *)0;
break;
}
}
- /* we leave the loop with current pointing to the field after newfield*/
- newfield->snext = current;
- newfield->sprev = current->sprev;
+ /* we leave the loop with current pointing to the field after newfield */
+ newfield->snext = current;
+ newfield->sprev = current->sprev;
newfield->snext->sprev = newfield;
newfield->sprev->snext = newfield;
- if (current==head)
+ if (current == head)
newhead = newfield;
}
- return(newhead);
+ return (newhead);
}
/*---------------------------------------------------------------------------
@@ -117,25 +119,26 @@ static FIELD *Insert_Field_By_Position(FIELD *newfield, FIELD *head)
|
| Return Values : -
+--------------------------------------------------------------------------*/
-static void Disconnect_Fields( FORM * form )
+static void
+Disconnect_Fields(FORM *form)
{
if (form->field)
{
FIELD **fields;
- for(fields=form->field;*fields;fields++)
+ for (fields = form->field; *fields; fields++)
{
- if (form == (*fields)->form)
+ if (form == (*fields)->form)
(*fields)->form = (FORM *)0;
}
-
+
form->rows = form->cols = 0;
form->maxfield = form->maxpage = -1;
form->field = (FIELD **)0;
- if (form->page)
+ if (form->page)
free(form->page);
- form->page = (_PAGE *)0;
- }
+ form->page = (_PAGE *) 0;
+ }
}
/*---------------------------------------------------------------------------
@@ -149,82 +152,86 @@ static void Disconnect_Fields( FORM * form )
| E_BAD_ARGUMENT - Invalid form pointer or field array
| E_SYSTEM_ERROR - not enough memory
+--------------------------------------------------------------------------*/
-static int Connect_Fields(FORM * form, FIELD ** fields)
+static int
+Connect_Fields(FORM *form, FIELD **fields)
{
int field_cnt, j;
int page_nr;
int maximum_row_in_field, maximum_col_in_field;
_PAGE *pg;
-
+
+ T((T_CALLED("Connect_Fields(%p,%p)"), form, fields));
+
assert(form);
- form->field = fields;
+ form->field = fields;
form->maxfield = 0;
- form->maxpage = 0;
+ form->maxpage = 0;
if (!fields)
RETURN(E_OK);
-
+
page_nr = 0;
/* store formpointer in fields and count pages */
- for(field_cnt=0;fields[field_cnt];field_cnt++)
+ for (field_cnt = 0; fields[field_cnt]; field_cnt++)
{
- if (fields[field_cnt]->form)
+ if (fields[field_cnt]->form)
RETURN(E_CONNECTED);
- if ( field_cnt==0 ||
- (fields[field_cnt]->status & _NEWPAGE))
+ if (field_cnt == 0 ||
+ (fields[field_cnt]->status & _NEWPAGE))
page_nr++;
fields[field_cnt]->form = form;
- }
- if (field_cnt==0)
+ }
+ if (field_cnt == 0 || (short)field_cnt < 0)
RETURN(E_BAD_ARGUMENT);
-
+
/* allocate page structures */
- if ( (pg = (_PAGE *)malloc(page_nr * sizeof(_PAGE))) != (_PAGE *)0 )
+ if ((pg = (_PAGE *) malloc(page_nr * sizeof(_PAGE))) != (_PAGE *) 0)
{
form->page = pg;
}
else
RETURN(E_SYSTEM_ERROR);
-
+
/* Cycle through fields and calculate page boundaries as well as
size of the form */
- for(j=0;j<field_cnt;j++)
+ for (j = 0; j < field_cnt; j++)
{
- if (j==0)
+ if (j == 0)
pg->pmin = j;
else
{
if (fields[j]->status & _NEWPAGE)
{
- pg->pmax = j-1;
+ pg->pmax = j - 1;
pg++;
pg->pmin = j;
}
}
-
+
maximum_row_in_field = fields[j]->frow + fields[j]->rows;
maximum_col_in_field = fields[j]->fcol + fields[j]->cols;
-
- if (form->rows < maximum_row_in_field)
+
+ if (form->rows < maximum_row_in_field)
form->rows = maximum_row_in_field;
- if (form->cols < maximum_col_in_field)
+ if (form->cols < maximum_col_in_field)
form->cols = maximum_col_in_field;
}
-
- pg->pmax = field_cnt-1;
+
+ pg->pmax = field_cnt - 1;
form->maxfield = field_cnt;
- form->maxpage = page_nr;
-
+ form->maxpage = page_nr;
+
/* Sort fields on form pages */
- for(page_nr = 0;page_nr < form->maxpage; page_nr++)
+ for (page_nr = 0; page_nr < form->maxpage; page_nr++)
{
FIELD *fld = (FIELD *)0;
- for(j = form->page[page_nr].pmin;j <= form->page[page_nr].pmax;j++)
+
+ for (j = form->page[page_nr].pmin; j <= form->page[page_nr].pmax; j++)
{
fields[j]->index = j;
- fields[j]->page = page_nr;
- fld = Insert_Field_By_Position(fields[j],fld);
+ fields[j]->page = page_nr;
+ fld = Insert_Field_By_Position(fields[j], fld);
}
form->page[page_nr].smin = fld->index;
form->page[page_nr].smax = fld->sprev->index;
@@ -240,46 +247,56 @@ static int Connect_Fields(FORM * form, FIELD ** fields)
| If there are fields, position to first active field.
|
| Return Values : E_OK - success
-| any other - error occured
+| E_BAD_ARGUMENT - Invalid form pointer or field array
+| E_CONNECTED - a field is already connected
+| E_SYSTEM_ERROR - not enough memory
+--------------------------------------------------------------------------*/
-INLINE static int Associate_Fields(FORM *form, FIELD **fields)
+NCURSES_INLINE static int
+Associate_Fields(FORM *form, FIELD **fields)
{
- int res = Connect_Fields(form,fields);
+ int res = Connect_Fields(form, fields);
+
if (res == E_OK)
{
- if (form->maxpage>0)
+ if (form->maxpage > 0)
{
form->curpage = 0;
- form_driver(form,FIRST_ACTIVE_MAGIC);
+ form_driver(form, FIRST_ACTIVE_MAGIC);
}
else
{
form->curpage = -1;
form->current = (FIELD *)0;
- }
+ }
}
- return(res);
+ return (res);
}
-
+
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : FORM *new_form( FIELD **fields )
|
| Description : Create new form with given array of fields.
|
-| Return Values : Pointer to form. NULL if error occured.
+| Return Values : Pointer to form. NULL if error occurred.
+! Set errno:
+| E_OK - success
+| E_BAD_ARGUMENT - Invalid form pointer or field array
+| E_CONNECTED - a field is already connected
+| E_SYSTEM_ERROR - not enough memory
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(FORM *)
-new_form (FIELD ** fields)
-{
+new_form(FIELD **fields)
+{
int err = E_SYSTEM_ERROR;
FORM *form = (FORM *)malloc(sizeof(FORM));
-
+
+ T((T_CALLED("new_form(%p)"), fields));
if (form)
{
*form = *_nc_Default_Form;
- if ((err=Associate_Fields(form,fields))!=E_OK)
+ if ((err = Associate_Fields(form, fields)) != E_OK)
{
free_form(form);
form = (FORM *)0;
@@ -288,8 +305,8 @@ new_form (FIELD ** fields)
if (!form)
SET_ERROR(err);
-
- return(form);
+
+ returnForm(form);
}
/*---------------------------------------------------------------------------
@@ -303,19 +320,21 @@ new_form (FIELD ** fields)
| E_POSTED - form is posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
-free_form (FORM * form)
+free_form(FORM *form)
{
- if ( !form )
+ T((T_CALLED("free_form(%p)"), form));
+
+ if (!form)
RETURN(E_BAD_ARGUMENT);
- if ( form->status & _POSTED)
+ if (form->status & _POSTED)
RETURN(E_POSTED);
-
- Disconnect_Fields( form );
- if (form->page)
+
+ Disconnect_Fields(form);
+ if (form->page)
free(form->page);
free(form);
-
+
RETURN(E_OK);
}
@@ -325,31 +344,35 @@ free_form (FORM * form)
|
| Description : Set a new association of an array of fields to a form
|
-| Return Values : E_OK - no error
-| E_BAD_ARGUMENT - invalid form pointer
-| E_POSTED - form is posted
+| Return Values : E_OK - no error
+| E_BAD_ARGUMENT - Invalid form pointer or field array
+| E_CONNECTED - a field is already connected
+| E_POSTED - form is posted
+| E_SYSTEM_ERROR - not enough memory
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
-set_form_fields (FORM * form, FIELD ** fields)
+set_form_fields(FORM *form, FIELD **fields)
{
FIELD **old;
int res;
-
- if ( !form )
+
+ T((T_CALLED("set_form_fields(%p,%p)"), form, fields));
+
+ if (!form)
RETURN(E_BAD_ARGUMENT);
- if ( form->status & _POSTED )
+ if (form->status & _POSTED)
RETURN(E_POSTED);
-
+
old = form->field;
- Disconnect_Fields( form );
-
- if( (res = Associate_Fields( form, fields )) != E_OK )
- Connect_Fields( form, old );
-
+ Disconnect_Fields(form);
+
+ if ((res = Associate_Fields(form, fields)) != E_OK)
+ Connect_Fields(form, old);
+
RETURN(res);
}
-
+
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : FIELD **form_fields( const FORM *form )
@@ -359,9 +382,10 @@ set_form_fields (FORM * form, FIELD ** fields)
| Return Values : Pointer to field array
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(FIELD **)
-form_fields (const FORM * form)
+form_fields(const FORM *form)
{
- return (Normalize_Form( form )->field);
+ T((T_CALLED("form_field(%p)"), form));
+ returnFieldPtr(Normalize_Form(form)->field);
}
/*---------------------------------------------------------------------------
@@ -373,9 +397,11 @@ form_fields (const FORM * form)
| Return Values : Number of fields, -1 if none are defined
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
-field_count (const FORM * form)
+field_count(const FORM *form)
{
- return (Normalize_Form( form )->maxfield);
+ T((T_CALLED("field_count(%p)"), form));
+
+ returnCode(Normalize_Form(form)->maxfield);
}
/* frm_def.c ends here */