i_qlistbox.h

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#ifndef i_qlistbox_h
#define i_qlistbox_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H. Lammertink
 Date:          16/05/2000
________________________________________________________________________

-*/

#include "uilistbox.h"

#include <QListWidget>
#include <QObject>


QT_BEGIN_NAMESPACE

class i_listMessenger : public QObject
{
    Q_OBJECT
    friend class        uiListBoxBody;

protected:
                        i_listMessenger( QListWidget* sndr,
                                         uiListBox* receiver )
                        : sender_( sndr )
                        , receiver_( receiver )
                        {
                            connect( sndr,
                                SIGNAL(itemDoubleClicked(QListWidgetItem*)),
                                this,
                                SLOT(itemDoubleClicked(QListWidgetItem*)) );

                            connect( sndr,
                                SIGNAL(itemClicked(QListWidgetItem*)),
                                this,
                                SLOT(itemClicked(QListWidgetItem*)) );

                            connect( sndr, SIGNAL(itemSelectionChanged()),
                                     this, SLOT(itemSelectionChanged()) );

                            connect( sndr,
                                 SIGNAL(itemEntered(QListWidgetItem*)),
                                 this, SLOT(itemEntered(QListWidgetItem*)) );

                            connect( sndr,
                                SIGNAL(itemChanged(QListWidgetItem*)),
                                this, SLOT(itemChanged(QListWidgetItem*)) );
                        }

    virtual             ~i_listMessenger() {}

private:

    uiListBox*          receiver_;
    QListWidget*        sender_;


#define mTrigger( notifier, itm ) \
{ \
    BufferString msg = #notifier; \
    if ( itm ) \
    { \
        QListWidgetItem* qlwi = itm; \
        msg += " "; msg += qlwi->listWidget()->row( qlwi ); \
    } \
    const int refnr = receiver_->box()->beginCmdRecEvent( msg ); \
    receiver_->notifier.trigger( *receiver_ ); \
    receiver_->box()->endCmdRecEvent( refnr, msg ); \
}

private slots:

void itemDoubleClicked( QListWidgetItem* itm )
{ mTrigger( doubleClicked, itm ); }


void itemClicked( QListWidgetItem* itm )
{
    if ( receiver_->buttonstate_ == OD::RightButton )
        mTrigger( rightButtonClicked, itm )
    else if ( receiver_->buttonstate_ == OD::LeftButton )
        mTrigger( leftButtonClicked, itm );
}

void itemSelectionChanged()
{
    mTrigger( selectionChanged, 0 );
}


void itemEntered( QListWidgetItem* itm )
{
    const int refnr = receiver_->box()->beginCmdRecEvent( "itemEntered" );
    receiver_->box()->endCmdRecEvent( refnr, "itemEntered" );
}


void itemChanged( QListWidgetItem* itm )
{
    receiver_->handleCheckChange( itm );
}

#undef mTrigger

};

QT_END_NAMESPACE

#endif