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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/job_manager_view.cc
* @brief Class generating a GTK widget to show the progress of jobs.
*/
#include "lib/job_manager.h"
#include "lib/job.h"
#include "lib/util.h"
#include "lib/exceptions.h"
#include "job_manager_view.h"
#include "gtk_util.h"
using namespace std;
using namespace boost;
/** Must be called in the GUI thread */
JobManagerView::JobManagerView ()
{
_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS);
_store = Gtk::TreeStore::create (_columns);
_view.set_model (_store);
_view.append_column ("Name", _columns.name);
Gtk::CellRendererProgress* r = Gtk::manage (new Gtk::CellRendererProgress ());
int const n = _view.append_column ("Progress", *r);
Gtk::TreeViewColumn* c = _view.get_column (n - 1);
c->add_attribute (r->property_value(), _columns.progress);
c->add_attribute (r->property_pulse(), _columns.progress_unknown);
c->add_attribute (r->property_text(), _columns.text);
_scroller.add (_view);
_scroller.set_size_request (-1, 150);
update ();
}
/** Update the view by examining the state of each jobs.
* Must be called in the GUI thread.
*/
void
JobManagerView::update ()
{
list<shared_ptr<Job> > jobs = JobManager::instance()->get ();
for (list<shared_ptr<Job> >::iterator i = jobs.begin(); i != jobs.end(); ++i) {
Gtk::ListStore::iterator j = _store->children().begin();
while (j != _store->children().end()) {
Gtk::TreeRow r = *j;
shared_ptr<Job> job = r[_columns.job];
if (job == *i) {
break;
}
++j;
}
Gtk::TreeRow r;
if (j == _store->children().end ()) {
j = _store->append ();
r = *j;
r[_columns.name] = (*i)->name ();
r[_columns.job] = *i;
r[_columns.progress_unknown] = -1;
r[_columns.informed_of_finish] = false;
} else {
r = *j;
}
bool inform_of_finish = false;
string const st = (*i)->status ();
if (!(*i)->finished ()) {
float const p = (*i)->overall_progress ();
if (p >= 0) {
r[_columns.text] = st;
r[_columns.progress] = p * 100;
} else {
r[_columns.text] = "Running";
r[_columns.progress_unknown] = r[_columns.progress_unknown] + 1;
}
}
/* Hack to work around our lack of cross-thread
signalling; we tell the job to emit_finished()
from here (the GUI thread).
*/
if ((*i)->finished_ok ()) {
bool i = r[_columns.informed_of_finish];
if (!i) {
r[_columns.progress_unknown] = -1;
r[_columns.progress] = 100;
r[_columns.text] = st;
inform_of_finish = true;
}
} else if ((*i)->finished_in_error ()) {
bool i = r[_columns.informed_of_finish];
if (!i) {
r[_columns.progress_unknown] = -1;
r[_columns.progress] = 100;
r[_columns.text] = st;
inform_of_finish = true;
}
}
if (inform_of_finish) {
try {
(*i)->emit_finished ();
} catch (OpenFileError& e) {
stringstream s;
s << "Error: " << e.what();
error_dialog (s.str ());
}
r[_columns.informed_of_finish] = true;
}
}
}
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