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/** \file cmdline_search_progress.cc */
// Copyright (C) 2010 Daniel Burrows
//
// 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; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
#include "cmdline_search_progress.h"
#include "cmdline_progress_display.h"
#include <generic/util/progress_info.h>
#include <generic/util/throttle.h>
#include <generic/views/progress.h>
#include <boost/format.hpp>
#include <boost/make_shared.hpp>
#include <cwidget/generic/util/ref_ptr.h>
using aptitude::util::progress_info;
using aptitude::util::progress_type_bar;
using aptitude::util::progress_type_none;
using aptitude::util::progress_type_pulse;
using boost::format;
using boost::make_shared;
using boost::shared_ptr;
using cwidget::util::ref_ptr;
namespace util = aptitude::util;
namespace aptitude
{
namespace cmdline
{
namespace
{
class search_progress : public views::progress
{
shared_ptr<views::progress> display;
shared_ptr<util::throttle> throttle;
std::string pattern;
public:
search_progress(const shared_ptr<views::progress> &_display,
const shared_ptr<util::throttle> &_throttle,
const std::string &_pattern)
: display(_display),
throttle(_throttle),
pattern(_pattern)
{
}
void set_progress(const progress_info &info);
void done();
};
void search_progress::set_progress(const progress_info &info)
{
// This is why the throttling happens at this layer rather than
// below: we can avoid some expensive string formatting with an
// up-front check.
if(!throttle->update_required())
return;
// We interpret the progress_info to add a prefix to its message
// if it has one.
switch(info.get_type())
{
case progress_type_none:
display->set_progress(info);
break;
case progress_type_pulse:
display->set_progress(progress_info::pulse( (format("%s: %s")
% pattern
% info.get_progress_status())
.str()));
break;
case progress_type_bar:
display->set_progress(progress_info::bar(info.get_progress_fraction(),
(format("%s: %s")
% pattern
% info.get_progress_status())
.str()));
break;
}
throttle->reset_timer();
}
void search_progress::done()
{
display->done();
}
}
shared_ptr<views::progress>
create_search_progress(const std::string &pattern,
const shared_ptr<views::progress> &display,
const shared_ptr<util::throttle> &throttle)
{
return make_shared<search_progress>(display,
throttle,
pattern);
}
}
}
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