--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Utils/ProgressEvent.cpp	Thu Nov 27 18:40:28 2025 +0100
@@ -0,0 +1,86 @@
+/////////////////////////////////////////////////////////////////////////////
+/// \file   ProgressEvent.cpp
+/// \brief  User event to pass async progress-bar updates to the main window.
+/// \author JD Gascuel.
+/// \copyright (c) 2015 JD Gascuel. All rights reserved.
+/// $Id$
+///////////////////////////////////////////////////////////////////////////////
+//
+// BSD 2-Clause License:
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#include "Utils/ProgressEvent.h"
+
+#include "Utils/Log.h"
+
+#include <QCoreApplication>
+
+///////////////////////////////////////////////////////////////////////////////
+
+QEvent::Type ProgressEvent::_logEventType = QEvent::None;
+
+///////////////////////////////////////////////////////////////////////////////
+
+ProgressEvent::ProgressEvent(int current, int range)
+  : QEvent(_logEventType),
+    current(current),
+    maximum(range)
+{}
+
+///////////////////////////////////////////////////////////////////////////////
+
+ProgressEvent* ProgressEvent::make(int current, int range)
+{
+    if( _logEventType == QEvent::None )
+        _logEventType = (QEvent::Type) QEvent::registerEventType();
+    return new ProgressEvent(current, range);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+ProgressManager::ProgressManager()
+  : _main(0)
+{}
+
+ProgressManager* ProgressManager::getInstance()
+{
+    static ProgressManager manager;
+    return & manager;
+}
+
+void ProgressManager::setMainWindow(QObject* main)
+{
+    _main = main;
+    assert(main);
+}
+
+void ProgressManager::post(int current, int range)
+{
+    assert(_main);
+    qApp->postEvent(_main, ProgressEvent::make(current, range));
+    qApp->processEvents(QEventLoop::ExcludeUserInputEvents, 10);
+}