File indexing completed on 2024-05-12 16:28:26

 /*
  * This file is part of Calligra
  *
  * Copyright (C) 2011 Jan Hambrecht <jaham@gmx.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
  * version 2.1 as published by the Free Software Foundation.
  *
  * This library 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA
  *
  */
 
 #include "CSThumbProviderKarbon.h"
 
 #include <KarbonPart.h>
 #include <KarbonDocument.h>
 
 #include <QApplication>
 #include <QEventLoop>
 #include <QPixmap>
 #include <QPainter>
 
 void processEvents()
 {
     int i = 100;
     while (QCoreApplication::hasPendingEvents() && i > 0) {
         --i;
         QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
     }
 }
 
 CSThumbProviderKarbon::CSThumbProviderKarbon(KarbonDocument *doc)
 : m_doc(doc)
 {
 }
 
 CSThumbProviderKarbon::~CSThumbProviderKarbon()
 {
 }
 
 QVector<QImage> CSThumbProviderKarbon::createThumbnails(const QSize &thumbSize)
 {
     // make sure everything is rendered before painting
     processEvents();
 
     QImage thumbnail(thumbSize, QImage::Format_RGB32);
     thumbnail.fill(QColor(Qt::white).rgb());
     QPainter thumbPainter(&thumbnail);
     m_doc->paintContent(thumbPainter, QRect(QPoint(0, 0), thumbSize));
 
     // make sure there are no events; this fixes a crash on shutdown
     processEvents();
 
     return QVector<QImage>() << thumbnail;
 }