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Kitware
GitHub Repository: Kitware/CMake
 Path: blob/master/Source/CursesDialog/form/frm_post.c
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/****************************************************************************

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 * Copyright (c) 1998 Free Software Foundation, Inc.                        *

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 *                                                                          *

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 * Permission is hereby granted, free of charge, to any person obtaining a  *

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 * copy of this software and associated documentation files (the            *

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 * "Software"), to deal in the Software without restriction, including      *

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 * without limitation the rights to use, copy, modify, merge, publish,      *

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 * distribute, distribute with modifications, sublicense, and/or sell       *

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 * copies of the Software, and to permit persons to whom the Software is    *

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 * furnished to do so, subject to the following conditions:                 *

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 *                                                                          *

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 * The above copyright notice and this permission notice shall be included  *

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 * in all copies or substantial portions of the Software.                   *

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 *                                                                          *

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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *

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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *

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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *

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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *

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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *

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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *

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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *

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 *                                                                          *

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 * Except as contained in this notice, the name(s) of the above copyright   *

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 * holders shall not be used in advertising or otherwise to promote the     *

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 * sale, use or other dealings in this Software without prior written       *

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 * authorization.                                                           *

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 ****************************************************************************/

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/****************************************************************************

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 *   Author: Juergen Pfeifer <[email protected]> 1995,1997            *

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 ****************************************************************************/

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#include "form.priv.h"

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MODULE_ID("$Id$")

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/*---------------------------------------------------------------------------

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|   Facility      :  libnform  

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|   Function      :  int post_form(FORM * form)

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|   

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|   Description   :  Writes the form into its associated subwindow.

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|

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|   Return Values :  E_OK              - success

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|                    E_BAD_ARGUMENT    - invalid form pointer

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|                    E_POSTED          - form already posted

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|                    E_NOT_CONNECTED   - no fields connected to form

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|                    E_NO_ROOM         - form doesn't fit into subwindow

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|                    E_SYSTEM_ERROR    - system error

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+--------------------------------------------------------------------------*/

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int post_form(FORM * form)

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{

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  WINDOW *formwin;

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  int err;

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  int page;

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  int height, width;

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  if (!form)

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    RETURN(E_BAD_ARGUMENT);

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  if (form->status & _POSTED)   

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    RETURN(E_POSTED);

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  if (!(form->field))

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    RETURN(E_NOT_CONNECTED);

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  formwin = Get_Form_Window(form);

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  getmaxyx(formwin, height, width);

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  if ((form->cols > width) || (form->rows > height))

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    RETURN(E_NO_ROOM);

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  /* reset form->curpage to an invalid value. This forces Set_Form_Page

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     to do the page initialization which is required by post_form.

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  */

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  page = form->curpage;

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  form->curpage = -1;

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  if ((err = _nc_Set_Form_Page(form,page,form->current))!=E_OK)

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    RETURN(err);

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  form->status |= _POSTED;

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  Call_Hook(form,forminit);

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  Call_Hook(form,fieldinit);

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  _nc_Refresh_Current_Field(form);

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  RETURN(E_OK);

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}

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/*---------------------------------------------------------------------------

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|   Facility      :  libnform  

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|   Function      :  int unpost_form(FORM * form)

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|   

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|   Description   :  Erase form from its associated subwindow.

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|

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|   Return Values :  E_OK            - success

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|                    E_BAD_ARGUMENT  - invalid form pointer

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|                    E_NOT_POSTED    - form isn't posted

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|                    E_BAD_STATE     - called from a hook routine

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+--------------------------------------------------------------------------*/

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int unpost_form(FORM * form)

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{

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  if (!form)

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    RETURN(E_BAD_ARGUMENT);

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  if (!(form->status & _POSTED)) 

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    RETURN(E_NOT_POSTED);

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  if (form->status & _IN_DRIVER) 

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    RETURN(E_BAD_STATE);

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  Call_Hook(form,fieldterm);

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  Call_Hook(form,formterm);

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  werase(Get_Form_Window(form));

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  delwin(form->w);

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  form->w = (WINDOW *)0;

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  form->status &= ~_POSTED;

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  RETURN(E_OK);

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}

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/* frm_post.c ends here */

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