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/*
=. This file is part of the OPIE Project
.=l. Copyright (c) 2003 hOlgAr <zecke@handhelds.org>
.>+-=
_;:, .> :=|. This library is free software; you can
.> <`_, > . <= redistribute it and/or modify it under
:`=1 )Y*s>-.-- : the terms of the GNU Library General Public
.="- .-=="i, .._ License as published by the Free Software
- . .-<_> .<> Foundation; either version 2 of the License,
._= =} : or (at your option) any later version.
.%`+i> _;_.
.i_,=:_. -<s. 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 HAZE_OMODAL_HELPER_H
#define HAZE_OMODAL_HELPER_H
#include <qwidget.h>
#include <qvaluelist.h>
#include <qmap.h>
typedef int TransactionID;
class OModalHelperControler;
class OModalHelperSignal;
class QDialog;
struct OModalHelperBase {
virtual void done( TransactionID id, QWidget* ) = 0;
virtual void next( TransactionID, OModalHelperControler * );
virtual void prev( TransactionID, OModalHelperControler * );
};
/**
* Modality sucks! ;) But it is easy to work with
* do exec() on a dialog and you know everything is funky.
* You only need to have one Dialog loaded and so on.
* This class helps you to work like with modality and help
* you to keep things in sync
* It's a template class but it sends signals once one Item is ready
* the signals contains the status and id of the item and then you
* can fetch it.
* Also if you edit an record external you can tell this class and it'll
* call the merge() function of your widget to maybe merge in these changes.
* It also supports multiple modes. Either it can create new dialogs
* for each item or it can queue them depending on your usage. But it is
* so smart that if only one item is shown that the queue bar is not shown
* See the example for simple usage.
*
* @short helps to life without modaility
* @author hOlgAr
* @version 0.01
*/
template<class Dialog, class Record, typename Id = QString>
class OModalHelper : private OModalHelperBase{
friend class OModalHelperSignal;
friend class OModalHelperControler;
public:
typedef QValueList<Record> RecordList;
typedef QMap<Id, Record> IdMap;
typedef QMap<TransactionID, Id> TransactionMap;
typedef QMap<QDialog*, TransactionID> DialogMap
enum Mode { Queue, New };
OModalHelper(enum Mode mode, QObject* parnet );
bool handles( Id id)const;
void cancel();
void cancel( TransactionID );
void connect( QObject* rec, const char* slot );
TransactionID handle( const Record& rec = Record() );
void edited( TransactionID, int what, const QString& data );
Record record( TransactionID )const;
RecordList done()const;
private:
};
/* ### FIXME use namespace with Qt3 */
/*
* A note on flow. The Signal is used for QT Signals when
* a record is done.
* There is either one controler and this controler slot will
* be connected to a dialog signal.
* In Queue we get the next and prev signals and call the Helper.
* this then changes the Record of the dialog and sets the transactionId
* of the controler.
* For the new mode
*
*/
class OModalHelperSignal : public QObject {
Q_OBJECT
public:
OModalHelperSignal();
signals:
done( int status, TransactionID transaction );
accpeted( TransactionID transaction );
rejected( TransactionID transaction );
};
class OModalHelperControler : public QObject {
Q_OBJECT
public:
OModalHelperControler( TransactionID id );
virtual TransactionID transactionID()const;
void setTransactionID( TransactionID id );
QDialog* dialog()const;
public slots:
virtual done(int result );
private:
QDialog *m_dia;
TransactionID m_id;
}
#endif
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