File indexing completed on 2024-11-24 04:39:36

 /*
     This file is part of Akonadi Contact.
 
     SPDX-FileCopyrightText: 2008 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "waitingoverlay_p.h"
 
 #include <KJob>
 #include <KLocalizedString>
 
 #include <QBoxLayout>
 #include <QEvent>
 #include <QLabel>
 #include <QPalette>
 
 //@cond PRIVATE
 using namespace Akonadi;
 WaitingOverlay::WaitingOverlay(KJob *job, QWidget *baseWidget, QWidget *parent)
     : QWidget(parent ? parent : baseWidget->window())
     , mBaseWidget(baseWidget)
 {
     Q_ASSERT(baseWidget);
     Q_ASSERT(parentWidget() != baseWidget);
 
     connect(baseWidget, &QObject::destroyed, this, &QObject::deleteLater);
     connect(job, &KJob::result, this, &QObject::deleteLater);
     mPreviousState = mBaseWidget->isEnabled();
 
     QBoxLayout *topLayout = new QVBoxLayout(this);
     topLayout->addStretch();
     auto description = new QLabel(this);
     description->setText(i18n("<p style=\"color: white;\"><b>Waiting for operation</b><br/></p>"));
     description->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
     topLayout->addWidget(description);
     topLayout->addStretch();
 
     QPalette p = palette();
     p.setColor(backgroundRole(), QColor(0, 0, 0, 128));
     setPalette(p);
     setAutoFillBackground(true);
 
     mBaseWidget->installEventFilter(this);
 
     reposition();
 }
 
 WaitingOverlay::~WaitingOverlay()
 {
     if (mBaseWidget) {
         mBaseWidget->setEnabled(mPreviousState);
     }
 }
 
 void WaitingOverlay::reposition()
 {
     if (!mBaseWidget) {
         return;
     }
 
     // reparent to the current top level widget of the base widget if needed
     // needed eg. in dock widgets
     if (parentWidget() != mBaseWidget->window()) {
         setParent(mBaseWidget->window());
     }
 
     // follow base widget visibility
     // needed eg. in tab widgets
     if (!mBaseWidget->isVisible()) {
         hide();
         return;
     }
     show();
 
     // follow position changes
     const QPoint topLevelPos = mBaseWidget->mapTo(window(), QPoint(0, 0));
     const QPoint parentPos = parentWidget()->mapFrom(window(), topLevelPos);
     move(parentPos);
 
     // follow size changes
     // TODO: hide/scale icon if we don't have enough space
     resize(mBaseWidget->size());
 }
 
 bool WaitingOverlay::eventFilter(QObject *object, QEvent *event)
 {
     if (object == mBaseWidget
         && (event->type() == QEvent::Move || event->type() == QEvent::Resize || event->type() == QEvent::Show || event->type() == QEvent::Hide
             || event->type() == QEvent::ParentChange)) {
         reposition();
     }
     return QWidget::eventFilter(object, event);
 }
 
 //@endcond
 
 #include "moc_waitingoverlay_p.cpp"