Source: toresultcombo.h


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//***************************************************************************
/*
 * TOra - An Oracle Toolkit for DBA's and developers
 * Copyright (C) 2003 Quest Software, Inc
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation;  only version 2 of
 * the License is valid for this program.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 *      As a special exception, you have permission to link this program
 *      with the Oracle Client libraries and distribute executables, as long
 *      as you follow the requirements of the GNU GPL in regard to all of the
 *      software in the executable aside from Oracle client libraries.
 *
 *      Specifically you are not permitted to link this program with the
 *      Qt/UNIX, Qt/Windows or Qt Non Commercial products of TrollTech.
 *      And you are not permitted to distribute binaries compiled against
 *      these libraries without written consent from Quest Software, Inc.
 *      Observe that this does not disallow linking to the Qt Free Edition.
 *
 * All trademarks belong to their respective owners.
 *
 ****************************************************************************/

#ifndef TORESULTCOMBO_H
#define TORESULTCOMBO_H

#include "tobackground.h"
#include "toresult.h"

#include <qcombobox.h>
#include <qstringlist.h>

class toNoBlockQuery;
class toSQL;

/** This widget displays the result of a query where each field is added as an item
 * to a combobox.
 */

class toResultCombo : public QComboBox, public toResult {
  Q_OBJECT

  toNoBlockQuery *Query;
  toBackground Poll;

  QString Selected;
  QStringList Additional;
public:
  /** Create the widget.
   * @param parent Parent widget.
   * @param name Name of widget.
   */
  toResultCombo(QWidget *parent,const char *name=NULL);
  /** Destruct object
   */
  ~toResultCombo();

  /** Reimplemented for internal reasons.
   */
  virtual void query(const QString &sql,const toQList &param);

  /** Clear list of additional items.
   */
  virtual void clearAdditional()
  { Additional.clear(); }
  /** Item to add before the query is read. Can be called several times.
   */
  virtual void additionalItem(const QString &item)
  { Additional<<item; }

  /** Handle any connection by default
   */
  virtual bool canHandle(toConnection &)
  { return true; }

  /** Set selected. When the result is read and this value is encountered that item is selected.
   */
  void setSelected(const QString &sel)
  { Selected=sel; }
  /** Get selected item value. Might not be same as currentText since that item might not have been read yet.
   */
  QString selected(void)
  { return Selected; }

  // Why are these needed?
#if 1
  /** Set the SQL statement of this list
   * @param sql String containing statement.
   */
  void setSQL(const QString &sql)
  { toResult::setSQL(sql); }
  /** Set the SQL statement of this list. This will also affect @ref Name.
   * @param sql SQL containing statement.
   */
  void setSQL(const toSQL &sql)
  { toResult::setSQL(sql); }
  /** Set new SQL and run query.
   * @param sql New sql.
   * @see setSQL
   */
  void query(const QString &sql)
  { toResult::query(sql); }
  /** Set new SQL and run query.
   * @param sql New sql.
   * @see setSQL
   */
  void query(const toSQL &sql)
  { toResult::query(sql); }
  /** Set new SQL and run query.
   * @param sql New sql.
   * @see setSQL
   */
  void query(const toSQL &sql,toQList &par)
  { toResult::query(sql,par); }
#endif
signals:
  /** Done reading the query.
   */
  void done(void);
public slots:
  /** Reimplemented for internal reasons.
   */
  virtual void refresh(void)
  { toResult::refresh(); }
  /** Reimplemented for internal reasons.
   */
  virtual void changeParams(const QString &Param1)
  { toResult::changeParams(Param1); }
  /** Reimplemented For internal reasons.
   */
  virtual void changeParams(const QString &Param1,const QString &Param2)
  { toResult::changeParams(Param1,Param2); }
  /** Reimplemented for internal reasons.
   */
  virtual void changeParams(const QString &Param1,const QString &Param2,const QString &Param3)
  { toResult::changeParams(Param1,Param2,Param3); }
private slots:
  void poll(void);
  void changeSelected(void); 
};

#endif