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/* This file is part of the KDE project
Copyright (C) 2003 Lucijan Busch <lucijan@kde.org>
Copyright (C) 2003-2005 Jaroslaw Staniek <js@iidea.pl>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KEXIPARTMANAGER_H
#define KEXIPARTMANAGER_H
#include <qobject.h>
#include <qdict.h>
#include <qasciidict.h>
#include <qintdict.h>
#include <qvaluelist.h>
#include <qptrlist.h>
#include <kservice.h>
#include <kexidb/object.h>
//#include "kexipartdatasource.h"
namespace KexiDB
{
class Connection;
}
namespace KexiPart
{
class Info;
class Part;
class StaticPart;
struct Missing
{
QString name;
QCString mime;
QString url;
};
typedef QAsciiDict<Info> PartInfoDict;
typedef QDictIterator<Info> PartInfoDictIterator;
typedef QValueList<Missing> MissingList;
typedef QPtrList<Info> PartInfoList;
typedef QPtrListIterator<Info> PartInfoListIterator;
typedef QIntDict<Part> PartDict;
// typedef QPtrList<DataSource> DataSourceList;
/**
* @short KexiPart's manager: looks up and instantiates them
*
* It dlopens them when needed, they aren't dlopened at startup is not necessary.
*/
class KEXICORE_EXPORT Manager : public QObject, public KexiDB::Object
{
Q_OBJECT
public:
/**
* creates an empty instance
*/
Manager(QObject *parent = 0);
~Manager();
/**
* queries ktrader and creates a list of available parts
*/
void lookup();
/**
* \return a part object for specified mime type. Dlopens a part using KexiPart::Info
* if needed. Return 0 if loading failed.
*/
Part *partForMimeType(const QString& mimeTypt);
/**
* \return a part object for specified info. Dlopens a part using KexiPart::Info
* if needed. Return 0 if loading failed.
*/
Part *part(Info *);
/**
* \return the info for a corresponding internal mime
*/
Info *infoForMimeType(const QString& mimeType);
/**
* checks project's kexi__part table
* and checks if all parts used in a project are available locally
*
* use @ref missingParts() to get a list of missing parts
*/
bool checkProject(KexiDB::Connection *conn);
/**
* @returns parts metioned in the project meta tables but not available locally
*/
MissingList missingParts() const { return m_missing; }
/**
* @returns a list of the available KexiParts in well-defined order
*/
PartInfoList *partInfoList() { return &m_partlist; }
signals:
void partLoaded(KexiPart::Part*);
protected:
//! Used by StaticPart
void insertStaticPart(KexiPart::StaticPart* part);
private:
PartDict m_parts;
PartInfoList m_partlist;
PartInfoDict m_partsByMime;
MissingList m_missing;
int m_nextTempProjectPartID;
bool m_lookupDone : 1;
friend class StaticPart;
};
}
#endif
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