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Diffstat (limited to 'libkdepim/overlaywidget.cpp')
-rw-r--r-- | libkdepim/overlaywidget.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/libkdepim/overlaywidget.cpp b/libkdepim/overlaywidget.cpp new file mode 100644 index 000000000..d9353fd31 --- /dev/null +++ b/libkdepim/overlaywidget.cpp @@ -0,0 +1,92 @@ +/** -*- c++ -*- + * overlaywidget.h + * + * Copyright (c) 2004 David Faure <faure@kde.org> + * + * 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" |