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/** -*- c++ -*-
* overlaywidget.h
*
* Copyright (c) 2004 David Faure <[email protected]>
*
* 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; version 2 of the License
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of this program with any edition of
* the Qt library by Trolltech AS, Norway (or with modified versions
* of Qt that use the same license as Qt), and distribute linked
* combinations including the two. You must obey the GNU General
* Public License in all respects for all of the code used other than
* Qt. If you modify this file, you may extend this exception to
* your version of the file, but you are not obligated to do so. If
* you do not wish to do so, delete this exception statement from
* your version.
*/
#include "overlaywidget.h"
using namespace KPIM;
OverlayWidget::OverlayWidget( QWidget* alignWidget, QWidget* parent, const char* name )
: QHBox( parent, name ), mAlignWidget( 0 )
{
setAlignWidget( alignWidget );
}
OverlayWidget::~OverlayWidget()
{
}
void OverlayWidget::reposition()
{
if ( !mAlignWidget )
return;
// p is in the alignWidget's coordinates
QPoint p;
// We are always above the alignWidget, right-aligned with it.
p.setX( mAlignWidget->width() - width() );
p.setY( -height() );
// Position in the toplevelwidget's coordinates
QPoint pTopLevel = mAlignWidget->mapTo( topLevelWidget(), p );
// Position in the widget's parentWidget coordinates
QPoint pParent = parentWidget()->mapFrom( topLevelWidget(), pTopLevel );
// Move 'this' to that position.
move( pParent );
}
void OverlayWidget::setAlignWidget( QWidget * w )
{
if (w == mAlignWidget)
return;
if (mAlignWidget)
mAlignWidget->removeEventFilter(this);
mAlignWidget = w;
if (mAlignWidget)
mAlignWidget->installEventFilter(this);
reposition();
}
bool OverlayWidget::eventFilter( QObject* o, QEvent* e)
{
if ( o == mAlignWidget &&
( e->type() == QEvent::Move || e->type() == QEvent::Resize ) ) {
reposition();
}
return QFrame::eventFilter(o,e);
}
void OverlayWidget::resizeEvent( QResizeEvent* ev )
{
reposition();
QFrame::resizeEvent( ev );
}
#include "overlaywidget.moc"
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