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93 lines
2.8 KiB
93 lines
2.8 KiB
15 years ago
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/** -*- c++ -*-
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* overlaywidget.h
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*
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* Copyright (c) 2004 David Faure <faure@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of this program with any edition of
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* the Qt library by Trolltech AS, Norway (or with modified versions
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* of Qt that use the same license as Qt), and distribute linked
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* combinations including the two. You must obey the GNU General
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* Public License in all respects for all of the code used other than
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* Qt. If you modify this file, you may extend this exception to
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* your version of the file, but you are not obligated to do so. If
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* you do not wish to do so, delete this exception statement from
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* your version.
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*/
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#include "overlaywidget.h"
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using namespace KPIM;
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OverlayWidget::OverlayWidget( QWidget* alignWidget, QWidget* parent, const char* name )
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: QHBox( parent, name ), mAlignWidget( 0 )
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{
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setAlignWidget( alignWidget );
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}
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OverlayWidget::~OverlayWidget()
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{
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}
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void OverlayWidget::reposition()
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{
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if ( !mAlignWidget )
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return;
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// p is in the alignWidget's coordinates
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QPoint p;
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// We are always above the alignWidget, right-aligned with it.
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p.setX( mAlignWidget->width() - width() );
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p.setY( -height() );
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// Position in the toplevelwidget's coordinates
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QPoint pTopLevel = mAlignWidget->mapTo( topLevelWidget(), p );
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// Position in the widget's parentWidget coordinates
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QPoint pParent = parentWidget()->mapFrom( topLevelWidget(), pTopLevel );
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// Move 'this' to that position.
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move( pParent );
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}
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void OverlayWidget::setAlignWidget( QWidget * w )
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{
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if (w == mAlignWidget)
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return;
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if (mAlignWidget)
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mAlignWidget->removeEventFilter(this);
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mAlignWidget = w;
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if (mAlignWidget)
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mAlignWidget->installEventFilter(this);
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reposition();
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}
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bool OverlayWidget::eventFilter( QObject* o, QEvent* e)
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{
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if ( o == mAlignWidget &&
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( e->type() == QEvent::Move || e->type() == QEvent::Resize ) ) {
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reposition();
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}
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return QFrame::eventFilter(o,e);
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}
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void OverlayWidget::resizeEvent( QResizeEvent* ev )
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{
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reposition();
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QFrame::resizeEvent( ev );
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}
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#include "overlaywidget.moc"
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