/*****
*
* TOra - An Oracle Toolkit for DBA's and developers
* Copyright (C) 2003-2005 Quest Software, Inc
* Portions Copyright (C) 2005 Other Contributors
* 
* 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.
*
*      You may link this product with any GPL'd Qt library such as Qt/Free
*
* All trademarks belong to their respective owners.
*
*****/

#ifndef TOPARAMGET_H
#define TOPARAMGET_H

#include "config.h"
#include "toconnection.h"
#include "tohelp.h"

#include <list>
#include <map>

#include <qdialog.h>
#include <qpushbutton.h>

class QComboBox;
class QGrid;
class QScrollView;

class toParamGetButton : public QPushButton
{
    Q_OBJECT
    int Row;
public:
    toParamGetButton(int row, QWidget *parent = 0, const char *name = 0)
            : QPushButton(parent, name), Row(row)
    {
        connect(this, SIGNAL(clicked()), this, SLOT(internalClicked()));
    }
private slots:
    void internalClicked(void)
    {
        emit clicked(Row);
    }
signals:
    void clicked(int);
};

/** A help class to parse SQL for input/output bindings and if available also pop up a
 * dialog and ask for values. Also maintains an internal cache of old values.
 */

class toParamGet : public QDialog, public toHelpContext
{
    Q_OBJECT
    /** Default values cache
     */
    static std::map<QString, std::list<QString> > DefaultCache;
    /** Specified values cache
     */
    static std::map<QString, std::list<QString> > Cache;

    QScrollView *View;
    QGrid *Container;

    std::list<QComboBox *> Value;
    toParamGet(QWidget *parent = 0, const char *name = 0);
protected:
    virtual void resizeEvent(QResizeEvent *e);
public:
    /** Get parameters for specified SQL string.
     * @param conn Connection to get binds for.
     * @param parent Parent widget if dialog is needed.
     * @param str SQL to parse for bindings. Observe that this string can be changed to further
     *            declare the binds.
     * @param interactive If not interactive simply rewrite the query and pass on the defaults.
     * @return Returns a list of values to feed into the query.
     */
    static toQList getParam(toConnection &conn, QWidget *parent, QString &str, bool interactive = true);
    /** Specify a default value for the cache. This can not overwrite a manually
     * specified value by the user.
     * @param conn Connection to get binds for.
     * @param name Name of the bind variable.
     * @param val Value of the bind variable.
     */
    static void setDefault(toConnection &conn, const QString &name, const QString &val);
private slots:

    virtual void showMemo(int row);
};

#endif