File indexing completed on 2024-05-12 17:10:47

 /***************************************************************************
  *   Copyright (C) 2011 by Dario Freddi <drf@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; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   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 .        *
  ***************************************************************************/
 
 #include "ErrorOverlay.h"
 
 #include <QEvent>
 #include <QLabel>
 #include <QVBoxLayout>
 #include <QIcon>
 
 #include <KLocalizedString>
 
 ErrorOverlay::ErrorOverlay(QWidget *baseWidget, const QString &details, QWidget *parent) :
     QWidget(parent ? parent : baseWidget->window()),
     m_BaseWidget(baseWidget)
 {
     // Build the UI
     QVBoxLayout *layout = new QVBoxLayout;
     layout->setSpacing(10);
 
     QLabel *pixmap = new QLabel();
     pixmap->setPixmap(QIcon::fromTheme("dialog-error").pixmap(64));
 
     QLabel *message = new QLabel(i18n("Power Management configuration module could not be loaded.\n%1", details));
 
     pixmap->setAlignment(Qt::AlignHCenter);
     message->setAlignment(Qt::AlignHCenter);
 
     layout->addStretch();
     layout->addWidget(pixmap);
     layout->addWidget(message);
     layout->addStretch();
 
     setLayout(layout);
 
     // Draw the transparent overlay background
     QPalette p = palette();
     p.setColor(backgroundRole(), QColor(0, 0, 0, 128));
     p.setColor(foregroundRole(), Qt::white);
     setPalette(p);
     setAutoFillBackground(true);
 
     m_BaseWidget->installEventFilter(this);
 
     reposition();
 }
 
 ErrorOverlay::~ErrorOverlay()
 {
 }
 
 void ErrorOverlay::reposition()
 {
     if (!m_BaseWidget) {
         return;
     }
 
     // follow base widget visibility
     // needed eg. in tab widgets
     if (!m_BaseWidget->isVisible()) {
         hide();
         return;
     }
 
     show();
 
     // follow position changes
     const QPoint topLevelPos = m_BaseWidget->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(m_BaseWidget->size());
 }
 
 bool ErrorOverlay::eventFilter(QObject * object, QEvent * event)
 {
     if (object == m_BaseWidget &&
         (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);
 }