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113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
/*
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This file is part of Akonadi Contact.
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Copyright (c) 2008 Volker Krause <vkrause@kde.org>
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA.
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*/
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#include "waitingoverlay_p.h"
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#include <KDebug>
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#include <KJob>
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#include <KLocalizedString>
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#include <QtCore/QEvent>
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#include <QBoxLayout>
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#include <QLabel>
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#include <QPalette>
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//#include <QProgressBar>
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//@cond PRIVATE
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WaitingOverlay::WaitingOverlay( KJob *job, QWidget *baseWidget, QWidget * parent )
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: QWidget( parent ? parent : baseWidget->window() ),
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mBaseWidget( baseWidget )
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{
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Q_ASSERT( baseWidget );
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Q_ASSERT( parentWidget() != baseWidget );
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connect( baseWidget, SIGNAL(destroyed()), SLOT(deleteLater()) );
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connect( job, SIGNAL(result(KJob*)), SLOT(deleteLater()) );
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mPreviousState = mBaseWidget->isEnabled();
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QBoxLayout *topLayout = new QVBoxLayout( this );
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topLayout->addStretch();
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QLabel *description = new QLabel( this );
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description->setText( i18n( "<p style=\"color: white;\"><b>Waiting for operation</b><br/></p>" ) );
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description->setAlignment( Qt::AlignHCenter | Qt::AlignVCenter );
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topLayout->addWidget( description );
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topLayout->addStretch();
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QPalette p = palette();
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p.setColor( backgroundRole(), QColor( 0, 0, 0, 128 ) );
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setPalette( p );
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setAutoFillBackground( true );
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mBaseWidget->installEventFilter( this );
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reposition();
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}
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WaitingOverlay::~ WaitingOverlay()
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{
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if ( mBaseWidget ) {
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mBaseWidget->setEnabled( mPreviousState );
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}
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}
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void WaitingOverlay::reposition()
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{
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if ( !mBaseWidget ) {
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return;
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}
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// reparent to the current top level widget of the base widget if needed
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// needed eg. in dock widgets
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if ( parentWidget() != mBaseWidget->window() ) {
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setParent( mBaseWidget->window() );
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}
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// follow base widget visibility
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// needed eg. in tab widgets
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if ( !mBaseWidget->isVisible() ) {
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hide();
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return;
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}
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show();
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// follow position changes
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const QPoint topLevelPos = mBaseWidget->mapTo( window(), QPoint( 0, 0 ) );
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const QPoint parentPos = parentWidget()->mapFrom( window(), topLevelPos );
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move( parentPos );
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// follow size changes
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// TODO: hide/scale icon if we don't have enough space
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resize( mBaseWidget->size() );
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}
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bool WaitingOverlay::eventFilter(QObject * object, QEvent * event)
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{
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if ( object == mBaseWidget &&
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( event->type() == QEvent::Move || event->type() == QEvent::Resize ||
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event->type() == QEvent::Show || event->type() == QEvent::Hide ||
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event->type() == QEvent::ParentChange ) ) {
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reposition();
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}
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return QWidget::eventFilter( object, event );
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}
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//@endcond
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