scip_dialog.c

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
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/*  Copyright 2002-2022 Zuse Institute Berlin                                */
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/*  Licensed under the Apache License, Version 2.0 (the "License");          */
/*  you may not use this file except in compliance with the License.         */
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/*      http://www.apache.org/licenses/LICENSE-2.0                           */
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/*  limitations under the License.                                           */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/**@file   scip_dialog.c
 * @ingroup OTHER_CFILES
 * @brief  public methods for dialog handler plugins
 * @author Tobias Achterberg
 * @author Timo Berthold
 * @author Gerald Gamrath
 * @author Leona Gottwald
 * @author Stefan Heinz
 * @author Gregor Hendel
 * @author Thorsten Koch
 * @author Alexander Martin
 * @author Marc Pfetsch
 * @author Michael Winkler
 * @author Kati Wolter
 *
 * @todo check all SCIP_STAGE_* switches, and include the new stages TRANSFORMED and INITSOLVE
 */

/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/

#include "scip/debug.h"
#include "scip/dialog_default.h"
#include "scip/dialog.h"
#include "scip/pub_dialog.h"
#include "scip/pub_message.h"
#include "scip/scip_dialog.h"
#include "scip/set.h"
#include "scip/struct_scip.h"

/** creates and includes dialog
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPincludeDialog(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_DIALOG**         dialog,             /**< pointer to store the dialog */
   SCIP_DECL_DIALOGCOPY  ((*dialogcopy)),    /**< copy method of dialog or NULL if you don't want to copy your plugin into sub-SCIPs */
   SCIP_DECL_DIALOGEXEC  ((*dialogexec)),    /**< execution method of dialog */
   SCIP_DECL_DIALOGDESC  ((*dialogdesc)),    /**< description output method of dialog, or NULL */
   SCIP_DECL_DIALOGFREE  ((*dialogfree)),    /**< destructor of dialog to free user data, or NULL */
   const char*           name,               /**< name of dialog: command name appearing in parent's dialog menu */
   const char*           desc,               /**< description of dialog used if description output method is NULL */
   SCIP_Bool             issubmenu,          /**< is the dialog a submenu? */
   SCIP_DIALOGDATA*      dialogdata          /**< user defined dialog data */
   )
{
   assert(scip != NULL);
   assert(dialog != NULL);

   /* check whether dialog is already present */
   if( dialogcopy != NULL && SCIPexistsDialog(scip, *dialog) )
   {
      SCIPerrorMessage("dialog <%s> already included.\n", name);
      return SCIP_INVALIDDATA;
   }

   SCIP_CALL( SCIPdialogCreate(dialog, dialogcopy, dialogexec, dialogdesc, dialogfree, name, desc, issubmenu, dialogdata) );
   SCIP_CALL( SCIPsetIncludeDialog(scip->set, *dialog) );

   return SCIP_OKAY;
}

/** returns if the dialog already exists
 *
 *  @return TRUE is returned if the dialog exits, otherwise FALSE.
 */
SCIP_Bool SCIPexistsDialog(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_DIALOG*          dialog              /**< dialog */
   )
{
   assert(scip != NULL);

   return SCIPsetExistsDialog(scip->set, dialog);
}

/** captures a dialog
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPcaptureDialog(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_DIALOG*          dialog              /**< dialog */
   )
{
   assert(scip != NULL);

   SCIPdialogCapture(dialog);

   return SCIP_OKAY;
}

/** releases a dialog
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPreleaseDialog(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_DIALOG**         dialog              /**< pointer to the dialog */
   )
{
   assert(scip != NULL);

   SCIP_CALL( SCIPdialogRelease(scip, dialog) );

   return SCIP_OKAY;
}

/** makes given dialog the root dialog of SCIP's interactive user shell; captures dialog and releases former root dialog
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPsetRootDialog(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_DIALOG*          dialog              /**< dialog to be the root */
   )
{
   assert(scip != NULL);

   SCIP_CALL( SCIPdialoghdlrSetRoot(scip, scip->dialoghdlr, dialog) );

   return SCIP_OKAY;
}

/** returns the root dialog of SCIP's interactive user shell
 *
 *  @return the root dialog of SCIP's interactive user shell is returned.
 */
SCIP_DIALOG* SCIPgetRootDialog(
   SCIP*                 scip                /**< SCIP data structure */
   )
{
   assert(scip != NULL);

   return SCIPdialoghdlrGetRoot(scip->dialoghdlr);
}

/** adds a sub dialog to the given dialog as menu entry and captures it
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPaddDialogEntry(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_DIALOG*          dialog,             /**< dialog to extend, or NULL for root dialog */
   SCIP_DIALOG*          subdialog           /**< subdialog to add as menu entry in dialog */
   )
{
   assert(scip != NULL);

   if( dialog == NULL )
      dialog = SCIPdialoghdlrGetRoot(scip->dialoghdlr);

   SCIP_CALL( SCIPdialogAddEntry(dialog, scip->set, subdialog) );

   return SCIP_OKAY;
}

/** adds a single line of input which is treated as if the user entered the command line
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPaddDialogInputLine(
   SCIP*                 scip,               /**< SCIP data structure */
   const char*           inputline           /**< input line to add */
   )
{
   assert(scip != NULL);

   SCIP_CALL( SCIPdialoghdlrAddInputLine(scip->dialoghdlr, inputline) );

   return SCIP_OKAY;
}

/** adds a single line of input to the command history which can be accessed with the cursor keys
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 */
SCIP_RETCODE SCIPaddDialogHistoryLine(
   SCIP*                 scip,               /**< SCIP data structure */
   const char*           inputline           /**< input line to add */
   )
{
   assert(scip != NULL);

   SCIP_CALL( SCIPdialoghdlrAddHistory(scip->dialoghdlr, NULL, inputline, FALSE) );

   return SCIP_OKAY;
}

/** starts interactive mode of SCIP by executing the root dialog
 *
 *  @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
 *          SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
 *
 *  @pre This method can be called if @p scip is in one of the following stages:
 *       - \ref SCIP_STAGE_INIT
 *       - \ref SCIP_STAGE_FREE
 *
 *  @post After calling this method \SCIP reaches one of the following stages depending on if and when the
 *        interactive shell was closed:
 *        - \ref SCIP_STAGE_PROBLEM if the interactive shell was closed after the problem was created
 *        - \ref SCIP_STAGE_TRANSFORMED if the interactive shell was closed after the problem was transformed
 *        - \ref SCIP_STAGE_PRESOLVING if the interactive shell was closed  during presolving
 *        - \ref SCIP_STAGE_PRESOLVED if the interactive shell was closed after presolve
 *        - \ref SCIP_STAGE_SOLVING if the interactive shell was closed during the tree search
 *        - \ref SCIP_STAGE_SOLVED if the interactive shell was closed after the problem was solved
 *        - \ref SCIP_STAGE_FREE if the interactive shell was closed after the problem was freed
 *
 *  See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
 */
SCIP_RETCODE SCIPstartInteraction(
   SCIP*                 scip                /**< SCIP data structure */
   )
{
   SCIP_CALL( SCIPcheckStage(scip, "SCIPstartInteraction", TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE) );

   /* includes dialog menus for "set" and "fix" in SCIP */
   SCIP_CALL( SCIPincludeDialogDefaultSet(scip) );
   SCIP_CALL( SCIPincludeDialogDefaultFix(scip) );

   SCIP_CALL( SCIPdialoghdlrExec(scip->dialoghdlr, scip->set) );

   return SCIP_OKAY;
}