rawTherapee/rtgui/progressconnector.h
Hombre 8b2eac9a3d Pipette and "On Preview Widgets" branch. See issue 227
The pipette part is already working quite nice but need to be finished. The widgets part needs more work...
2014-01-21 23:37:36 +01:00

100 lines
2.7 KiB
C++

/*
* This file is part of RawTherapee.
*
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
*
* RawTherapee 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 3 of the License, or
* (at your option) any later version.
*
* RawTherapee 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 RawTherapee. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PROGRESSCONNECTOR_
#define _PROGRESSCONNECTOR_
#include <sigc++/sigc++.h>
#include <gtkmm.h>
#include "../rtengine/rtengine.h"
#include "guiutils.h"
#undef THREAD_PRIORITY_NORMAL
class PLDBridge : public rtengine::ProgressListener {
rtengine::ProgressListener* pl;
public:
PLDBridge ( rtengine::ProgressListener* pb)
: pl(pb) {}
// ProgressListener interface
void setProgress (double p) {
GThreadLock lock;
pl->setProgress(p);
}
void setProgressStr (Glib::ustring str) {
GThreadLock lock;
Glib::ustring progrstr;
progrstr = M(str);
pl->setProgressStr(progrstr);
}
void setProgressState (bool inProcessing){
GThreadLock lock;
pl->setProgressState(inProcessing);
}
void error (Glib::ustring descr){
GThreadLock lock;
pl->error(descr);
}
};
template<class T>
class ProgressConnector {
sigc::signal0<T> opStart;
sigc::signal0<bool> opEnd;
T retval;
Glib::Thread *workThread;
static int emitEndSignalUI (void* data) {
sigc::signal0<bool>* opEnd = (sigc::signal0<bool>*) data;
int r = opEnd->emit ();
delete opEnd;
return r;
}
void workingThread () {
retval = opStart.emit ();
g_idle_add (ProgressConnector<T>::emitEndSignalUI, new sigc::signal0<bool> (opEnd));
workThread = 0;
}
public:
ProgressConnector ():workThread( 0 ) { }
void startFunc (const sigc::slot0<T>& startHandler, const sigc::slot0<bool>& endHandler ) {
if( !workThread ){
opStart.connect (startHandler);
opEnd.connect (endHandler);
workThread = Glib::Thread::create(sigc::mem_fun(*this, &ProgressConnector<T>::workingThread), 0, true, true, Glib::THREAD_PRIORITY_NORMAL);
}
}
T returnValue(){
return retval;
}
};
#endif