post_form (FORM * form)
{
WINDOW *formwin;
int err;
int page;
if (!form)
RETURN(E_BAD_ARGUMENT);
if (form->status & _POSTED)
RETURN(E_POSTED);
if (!(form->field))
RETURN(E_NOT_CONNECTED);
formwin = Get_Form_Window(form);
if ((form->cols > getmaxx(formwin)) || (form->rows > getmaxy(formwin)))
RETURN(E_NO_ROOM);
/* reset form->curpage to an invald value. This forces Set_Form_Page
to do the page initialization which is required by post_form.
*/
page = form->curpage;
form->curpage = -1;
if ((err = _nc_Set_Form_Page(form,page,form->current))!=E_OK)
RETURN(err);
form->status |= _POSTED;
Call_Hook(form,forminit);
Call_Hook(form,fieldinit);
_nc_Refresh_Current_Field(form);
RETURN(E_OK);
}
unpost_menu(MENU * menu)
{
WINDOW *win;
T((T_CALLED("unpost_menu(%p)"), (void *)menu));
if (!menu)
RETURN(E_BAD_ARGUMENT);
if (menu->status & _IN_DRIVER)
RETURN(E_BAD_STATE);
if (!(menu->status & _POSTED))
RETURN(E_NOT_POSTED);
Call_Hook(menu, itemterm);
Call_Hook(menu, menuterm);
win = Get_Menu_Window(menu);
werase(win);
wsyncup(win);
assert(menu->sub);
delwin(menu->sub);
menu->sub = (WINDOW *)0;
assert(menu->win);
delwin(menu->win);
menu->win = (WINDOW *)0;
menu->status &= ~_POSTED;
RETURN(E_OK);
}
post_menu(MENU * menu)
{
T((T_CALLED("post_menu(%p)"), (void *)menu));
if (!menu)
RETURN(E_BAD_ARGUMENT);
if (menu->status & _IN_DRIVER)
RETURN(E_BAD_STATE);
if (menu->status & _POSTED)
RETURN(E_POSTED);
if (menu->items && *(menu->items))
{
int y;
int h = 1 + menu->spc_rows * (menu->rows - 1);
WINDOW *win = Get_Menu_Window(menu);
int maxy = getmaxy(win);
if ((menu->win = newpad(h, menu->width)))
{
y = (maxy >= h) ? h : maxy;
if (y >= menu->height)
y = menu->height;
if (!(menu->sub = subpad(menu->win, y, menu->width, 0, 0)))
RETURN(E_SYSTEM_ERROR);
}
else
RETURN(E_SYSTEM_ERROR);
if (menu->status & _LINK_NEEDED)
_nc_Link_Items(menu);
}
else
RETURN(E_NOT_CONNECTED);
menu->status |= _POSTED;
if (!(menu->opt & O_ONEVALUE))
{
ITEM **items;
for (items = menu->items; *items; items++)
{
(*items)->value = FALSE;
}
}
_nc_Draw_Menu(menu);
Call_Hook(menu, menuinit);
Call_Hook(menu, iteminit);
_nc_Show_Menu(menu);
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : void _nc_New_TopRow_and_CurrentItem(
| MENU *menu,
| int new_toprow,
| ITEM *new_current_item)
|
| Description : Redisplay the menu so that the given row becomes the
| top row and the given item becomes the new current
| item.
|
| Return Values : -
+--------------------------------------------------------------------------*/
void _nc_New_TopRow_and_CurrentItem(MENU *menu, int new_toprow,
ITEM *new_current_item)
{
ITEM *cur_item;
bool mterm_called = FALSE;
bool iterm_called = FALSE;
assert(menu);
if (menu->status & _POSTED)
{
if (new_current_item != menu->curitem)
{
Call_Hook(menu,itemterm);
iterm_called = TRUE;
}
if (new_toprow != menu->toprow)
{
Call_Hook(menu,menuterm);
mterm_called = TRUE;
}
cur_item = menu->curitem;
assert(cur_item);
menu->toprow = new_toprow;
menu->curitem = new_current_item;
if (mterm_called)
{
Call_Hook(menu,menuinit);
}
if (iterm_called)
{
/* this means, move from the old current_item to the new one... */
Move_To_Current_Item( menu, cur_item );
Call_Hook(menu,iteminit);
}
if (mterm_called || iterm_called)
{
_nc_Show_Menu(menu);
}
else
pos_menu_cursor(menu);
}
else
{ /* if we are not posted, this is quite simple */
menu->toprow = new_toprow;
menu->curitem = new_current_item;
}
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : int set_current_field(FORM * form,FIELD * field)
|
| Description : Set the current field of the form to the specified one.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid form or field pointer
| E_REQUEST_DENIED - field not selectable
| E_BAD_STATE - called from a hook routine
| E_INVALID_FIELD - current field can't be left
| E_SYSTEM_ERROR - system error
+--------------------------------------------------------------------------*/
int set_current_field(FORM * form, FIELD * field)
{
int err = E_OK;
if ( !form || !field )
RETURN(E_BAD_ARGUMENT);
if ( (form != field->form) || Field_Is_Not_Selectable(field) )
RETURN(E_REQUEST_DENIED);
if (!(form->status & _POSTED))
{
form->current = field;
form->curpage = field->page;
}
else
{
if (form->status & _IN_DRIVER)
err = E_BAD_STATE;
else
{
if (form->current != field)
{
if (!_nc_Internal_Validation(form))
err = E_INVALID_FIELD;
else
{
Call_Hook(form,fieldterm);
if (field->page != form->curpage)
{
Call_Hook(form,formterm);
err = _nc_Set_Form_Page(form,field->page,field);
Call_Hook(form,forminit);
}
else
{
err = _nc_Set_Current_Field(form,field);
}
Call_Hook(form,fieldinit);
_nc_Refresh_Current_Field(form);
}
}
}
}
RETURN(err);
}
unpost_form (FORM * form)
{
if (!form)
RETURN(E_BAD_ARGUMENT);
if (!(form->status & _POSTED))
RETURN(E_NOT_POSTED);
if (form->status & _IN_DRIVER)
RETURN(E_BAD_STATE);
Call_Hook(form,fieldterm);
Call_Hook(form,formterm);
werase(Get_Form_Window(form));
delwin(form->w);
form->w = (WINDOW *)0;
form->status &= ~_POSTED;
RETURN(E_OK);
}
set_form_page(FORM *form, int page)
{
int err = E_OK;
T((T_CALLED("set_form_page(%p,%d)"), form, page));
if (!form || (page < 0) || (page >= form->maxpage))
RETURN(E_BAD_ARGUMENT);
if (!(form->status & _POSTED))
{
form->curpage = page;
form->current = _nc_First_Active_Field(form);
}
else
{
if (form->status & _IN_DRIVER)
err = E_BAD_STATE;
else
{
if (form->curpage != page)
{
if (!_nc_Internal_Validation(form))
err = E_INVALID_FIELD;
else
{
Call_Hook(form, fieldterm);
Call_Hook(form, formterm);
err = _nc_Set_Form_Page(form, page, (FIELD *)0);
Call_Hook(form, forminit);
Call_Hook(form, fieldinit);
_nc_Refresh_Current_Field(form);
}
}
}
}
RETURN(err);
}
