/* This file is part of the KDE project
   Copyright (C) 2003 Lucijan Busch <lucijan@kde.org>
   Copyright (C) 2003-2004 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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef KEXIMAINWINDOW_H
#define KEXIMAINWINDOW_H

#include "kexisharedactionhost.h"
#include "kexi.h"
#include "tristate.h"

#include <kmdimainfrm.h>

#include <qintdict.h>

class KexiDialogBase;
class KexiProject;
namespace KexiPart {
	class Item;
}

/**
 * @short Kexi's main window interface
 * This interface is implemented by KexiMainWindowImpl class.
 * KexiMainWindow offers simple features what lowers cross-dependency (and also avoids
 * circular dependencies between Kexi modules).
 */
class KEXICORE_EXPORT KexiMainWindow : public KMdiMainFrm, public KexiSharedActionHost
{
	Q_OBJECT
	public:
		KexiMainWindow();
		virtual ~KexiMainWindow();

		//! Project data of currently opened project or NULL if no project here yet.
		virtual KexiProject *project() = 0;
		
		/*! Registers dialog \a dlg for watching and adds it to the main window's stack. */
		virtual void registerChild(KexiDialogBase *dlg) = 0;

		virtual QPopupMenu* findPopupMenu(const char *popupName) = 0;

		/*! Generates ID for private "document" like Relations window.
		 Private IDs are negative numbers (while ID regular part instance's IDs are >0)
		 Private means that the object is not stored as-is in the project but is somewhat 
		 generated and in most cases there is at most one unique instance document of such type (part).
		 To generate this ID, just app-wide internal counter is used. */
		virtual int generatePrivateID() = 0;
	
	public slots:
		//! Opens object pointed by \a item in a view \a viewMode
		virtual KexiDialogBase * openObject(KexiPart::Item *item, int viewMode = Kexi::DataViewMode) = 0;
		//! For convenience
		virtual KexiDialogBase * openObject(const QCString& mime, const QString& name, int viewMode = Kexi::DataViewMode) = 0;

		/*! Received information from active view that \a dlg has switched 
		its property buffer, so property editor contents should be reloaded. 
		 If \a force is true, property editor's data is reloaded even 
		 if the currently pointed buffer is the same as before.
		 If \a preservePrevSelection is true and there was a buffer 
		 set before call, previously selected item will be preselected 
		 in the editor (if found). */
		virtual void propertyBufferSwitched(KexiDialogBase *dlg, bool force=false, bool preservePrevSelection = false) = 0;

		/*! Saves dialog's \a dlg data. It dialog's data is never saved,
		 User is asked for name and caption, before saving.
		 \return true on successul closing or false on saving error.
		 If saving was cancelled by user, cancelled is returned.
		 \a messageWhenAskingForName is a i18n'ed text that will be visible
		 within name/caption dialog (see KexiNameDialog), which is popped 
		 up for never saved objects. */
		virtual tristate saveObject( KexiDialogBase *dlg,
			const QString& messageWhenAskingForName = QString::null ) = 0;
	

	protected slots:
		virtual void slotObjectRenamed(const KexiPart::Item &item) = 0;

};


#endif

