tork/src/overlayWidget.cpp

/***************************************************************************
** $Id: overlayWidget.cpp,v 1.2 2006/06/22 18:56:03 hoganrobert Exp $
 *   Copyright (C) 2005 by Max Howell <max.howell@methylblue.com>          *
 *                                                                         *
 *   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; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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.,                                       *
 *   51 Franklin Steet, Fifth Floor, Boston, MA  02111-1307, USA.          *
 ***************************************************************************/

#include <tqpoint.h>

#include "overlayWidget.h"
//#include "statusbar.h"


namespace KDE {


OverlayWidget::OverlayWidget( TQWidget *parent, TQWidget *anchor, const char* name )
        : TQFrame( parent->parentWidget(), name )
        , m_anchor( anchor )
        , m_parent( parent )
{
    parent->installEventFilter( this );

    hide();
}

void
OverlayWidget::reposition()
{
    setMaximumSize( parentWidget()->size() );
    adjustSize();

    // p is in the alignWidget's coordinates
    TQPoint p;

    p.setX( m_anchor->width() - width() );
    p.setY( -height() );

    // Position in the toplevelwidget's coordinates
    TQPoint pTopLevel = m_anchor->mapTo( topLevelWidget(), p );

    // Position in the widget's parentWidget coordinates
    TQPoint pParent = parentWidget() ->mapFrom( topLevelWidget(), pTopLevel );
    // keep it on the screen
    if( pParent.x() < 0 )
        pParent.rx() = 0;

    // Move 'this' to that position.
    move( pParent );
}

bool
OverlayWidget::eventFilter( TQObject* o, TQEvent* e )
{
    if ( e->type() == TQEvent::Move || e->type() == TQEvent::Resize )
        reposition();

    return TQFrame::eventFilter( o, e );
}

void
OverlayWidget::resizeEvent( TQResizeEvent* ev )
{
    reposition();
    TQFrame::resizeEvent( ev );
}

bool
OverlayWidget::event( TQEvent *e )
{
    if ( e->type() == TQEvent::ChildInserted )
        adjustSize();

    return TQFrame::event( e );
}

}