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kipi-plugins/kipi-plugins/findimages/actions.cpp

53 lines
2.3 KiB

//////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2006 Jesper Pedersen <blackie at 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, Cambridge, MA 02110-1301, USA.
//
//////////////////////////////////////////////////////////////////////////////
#include "actions.h"
/**
* \brief Send a status message to the main thread.
* The worker thread communicates status messages to the main thread by posting events to it, just as it should.
* There is just one problem: When the main thread gets a message it needs to update a listbox, which is
* rather expensive, The worker thread thus easily floods the main thread.
* The result of this flooding is that the GUI doesn't update very well, and as a consequence looks crappy.
*
* To overcome this problem, we will only send status messages at most every 50 msec.
*/
void KIPIFindDupplicateImagesPlugin::sendMessage( TQObject* receiver, const Action& action, const TQString & fileName,
int total, bool starting, bool succes )
{
static TQTime time;
static int count = 0;
if (starting)
++count;
if ( time.elapsed() > 50 || action == KIPIFindDupplicateImagesPlugin::Progress ||
(!starting && !succes ) /*error messages*/ ) {
KIPIFindDupplicateImagesPlugin::EventData *d = new KIPIFindDupplicateImagesPlugin::EventData;
d->action = action;
d->fileName = fileName;
d->total = total;
d->count = count;
d->starting = starting;
d->success = succes;
TQApplication::postEvent( receiver, new TQCustomEvent(TQEvent::User, d));
time.restart();
}
}