mirror of
https://github.com/reactos/CMake.git
synced 2024-12-05 02:06:34 +00:00
377 lines
12 KiB
C
377 lines
12 KiB
C
/****************************************************************************
|
||
* Copyright (c) 1998 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 *
|
||
* "Software"), to deal in the Software without restriction, including *
|
||
* without limitation the rights to use, copy, modify, merge, publish, *
|
||
* distribute, distribute with modifications, sublicense, and/or sell *
|
||
* copies of the Software, and to permit persons to whom the Software is *
|
||
* furnished to do so, subject to the following conditions: *
|
||
* *
|
||
* The above copyright notice and this permission notice shall be included *
|
||
* in all copies or substantial portions of the Software. *
|
||
* *
|
||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
||
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
||
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
||
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
||
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
||
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
||
* *
|
||
* Except as contained in this notice, the name(s) of the above copyright *
|
||
* holders shall not be used in advertising or otherwise to promote the *
|
||
* sale, use or other dealings in this Software without prior written *
|
||
* authorization. *
|
||
****************************************************************************/
|
||
|
||
/****************************************************************************
|
||
* Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
|
||
****************************************************************************/
|
||
|
||
#include "form.priv.h"
|
||
|
||
MODULE_ID("$Id$")
|
||
|
||
/* 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 */
|
||
};
|
||
|
||
FORM *_nc_Default_Form = &default_form;
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : static FIELD *Insert_Field_By_Position(
|
||
| FIELD *new_field,
|
||
| FIELD *head )
|
||
|
|
||
| Description : Insert new_field into sorted fieldlist with head "head"
|
||
| and return new head of sorted fieldlist. Sorting
|
||
| criteria is (row,column). This is a circular list.
|
||
|
|
||
| Return Values : New head of sorted fieldlist
|
||
+--------------------------------------------------------------------------*/
|
||
static FIELD *Insert_Field_By_Position(FIELD *newfield, FIELD *head)
|
||
{
|
||
FIELD *current, *newhead;
|
||
|
||
assert(newfield != 0);
|
||
|
||
if (!head)
|
||
{ /* 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)) )
|
||
{
|
||
current = current->snext;
|
||
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;
|
||
newfield->snext->sprev = newfield;
|
||
newfield->sprev->snext = newfield;
|
||
if (current==head)
|
||
newhead = newfield;
|
||
}
|
||
return(newhead);
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : static void Disconnect_Fields(FORM *form)
|
||
|
|
||
| Description : Break association between form and array of fields.
|
||
|
|
||
| Return Values : -
|
||
+--------------------------------------------------------------------------*/
|
||
static void Disconnect_Fields( FORM * form )
|
||
{
|
||
if (form->field)
|
||
{
|
||
FIELD **fields;
|
||
|
||
for(fields=form->field;*fields;fields++)
|
||
{
|
||
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)
|
||
free(form->page);
|
||
form->page = (_PAGE *)0;
|
||
}
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : static int Connect_Fields(FORM *form, FIELD **fields)
|
||
|
|
||
| Description : Set association between form and array of fields.
|
||
|
|
||
| Return Values : E_OK - no error
|
||
| E_CONNECTED - a field is already connected
|
||
| E_BAD_ARGUMENT - Invalid form pointer or field array
|
||
| E_SYSTEM_ERROR - not enough memory
|
||
+--------------------------------------------------------------------------*/
|
||
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;
|
||
|
||
assert(form != 0);
|
||
|
||
form->field = fields;
|
||
form->maxfield = 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++)
|
||
{
|
||
if (fields[field_cnt]->form)
|
||
RETURN(E_CONNECTED);
|
||
if ( field_cnt==0 ||
|
||
(fields[field_cnt]->status & _NEWPAGE))
|
||
page_nr++;
|
||
fields[field_cnt]->form = form;
|
||
}
|
||
if (field_cnt==0)
|
||
RETURN(E_BAD_ARGUMENT);
|
||
|
||
/* allocate page structures */
|
||
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++)
|
||
{
|
||
if (j==0)
|
||
pg->pmin = j;
|
||
else
|
||
{
|
||
if (fields[j]->status & _NEWPAGE)
|
||
{
|
||
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)
|
||
form->rows = maximum_row_in_field;
|
||
if (form->cols < maximum_col_in_field)
|
||
form->cols = maximum_col_in_field;
|
||
}
|
||
|
||
pg->pmax = field_cnt-1;
|
||
form->maxfield = field_cnt;
|
||
form->maxpage = page_nr;
|
||
|
||
/* Sort fields on form pages */
|
||
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++)
|
||
{
|
||
fields[j]->index = j;
|
||
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;
|
||
}
|
||
RETURN(E_OK);
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : static int Associate_Fields(FORM *form, FIELD **fields)
|
||
|
|
||
| Description : Set association between form and array of fields.
|
||
| If there are fields, position to first active field.
|
||
|
|
||
| Return Values : E_OK - success
|
||
| any other - error occured
|
||
+--------------------------------------------------------------------------*/
|
||
INLINE static int Associate_Fields(FORM *form, FIELD **fields)
|
||
{
|
||
int res = Connect_Fields(form,fields);
|
||
if (res == E_OK)
|
||
{
|
||
if (form->maxpage>0)
|
||
{
|
||
form->curpage = 0;
|
||
form_driver(form,FIRST_ACTIVE_MAGIC);
|
||
}
|
||
else
|
||
{
|
||
form->curpage = -1;
|
||
form->current = (FIELD *)0;
|
||
}
|
||
}
|
||
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.
|
||
+--------------------------------------------------------------------------*/
|
||
FORM *new_form(FIELD ** fields)
|
||
{
|
||
int err = E_SYSTEM_ERROR;
|
||
|
||
FORM *form = (FORM *)malloc(sizeof(FORM));
|
||
|
||
if (form)
|
||
{
|
||
*form = *_nc_Default_Form;
|
||
if ((err=Associate_Fields(form,fields))!=E_OK)
|
||
{
|
||
free_form(form);
|
||
form = (FORM *)0;
|
||
}
|
||
}
|
||
|
||
if (!form)
|
||
SET_ERROR(err);
|
||
|
||
return(form);
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : int free_form( FORM *form )
|
||
|
|
||
| Description : Release internal memory associated with form.
|
||
|
|
||
| Return Values : E_OK - no error
|
||
| E_BAD_ARGUMENT - invalid form pointer
|
||
| E_POSTED - form is posted
|
||
+--------------------------------------------------------------------------*/
|
||
int free_form(FORM * form)
|
||
{
|
||
if ( !form )
|
||
RETURN(E_BAD_ARGUMENT);
|
||
|
||
if ( form->status & _POSTED)
|
||
RETURN(E_POSTED);
|
||
|
||
Disconnect_Fields( form );
|
||
if (form->page)
|
||
free(form->page);
|
||
free(form);
|
||
|
||
RETURN(E_OK);
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : int set_form_fields( FORM *form, FIELD **fields )
|
||
|
|
||
| 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
|
||
+--------------------------------------------------------------------------*/
|
||
int set_form_fields(FORM * form, FIELD ** fields)
|
||
{
|
||
FIELD **old;
|
||
int res;
|
||
|
||
if ( !form )
|
||
RETURN(E_BAD_ARGUMENT);
|
||
|
||
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 );
|
||
|
||
RETURN(res);
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : FIELD **form_fields( const FORM *form )
|
||
|
|
||
| Description : Retrieve array of fields
|
||
|
|
||
| Return Values : Pointer to field array
|
||
+--------------------------------------------------------------------------*/
|
||
FIELD **form_fields(const FORM * form)
|
||
{
|
||
return (Normalize_Form( form )->field);
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------
|
||
| Facility : libnform
|
||
| Function : int field_count( const FORM *form )
|
||
|
|
||
| Description : Retrieve number of fields
|
||
|
|
||
| Return Values : Number of fields, -1 if none are defined
|
||
+--------------------------------------------------------------------------*/
|
||
int field_count(const FORM * form)
|
||
{
|
||
return (Normalize_Form( form )->maxfield);
|
||
}
|
||
|
||
/* frm_def.c ends here */
|