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/** \file cmdline_progress_display.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.
// Local includes:
#include "cmdline_progress_display.h"
#include "transient_message.h"
#include <aptitude.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <generic/apt/apt.h>
#include <generic/apt/config_signal.h>
#include <generic/util/progress_info.h>
#include <generic/views/progress.h>
// System includes:
#include <boost/format.hpp>
#include <boost/make_shared.hpp>
#include <cwidget/generic/util/transcode.h>
#include <sys/time.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::make_shared;
using boost::shared_ptr;
using boost::wformat;
using cwidget::util::transcode;
namespace aptitude
{
namespace cmdline
{
namespace
{
// \todo This should be configurable.
const int progress_update_interval = 0.25;
class progress_display_impl : public views::progress
{
// Set to "true" when done() is called, and to "false" when
// any other method is called. Used to suppress calls to
// done() when a "Done" message is already being displayed.
bool is_done;
// The last progress that was displayed; we always update the
// display if the mode or the message changed.
progress_info last_progress;
shared_ptr<transient_message> message;
bool old_style_percentage;
bool retain_completed;
// Using the current time and the progress information to
// display, determine if an update is required.
bool should_update(const progress_info &progress) const;
public:
progress_display_impl(const shared_ptr<transient_message> &_message,
bool _old_style_percentage,
bool _retain_completed);
void set_progress(const progress_info &progress);
void done();
};
progress_display_impl::progress_display_impl(const shared_ptr<transient_message> &_message,
bool _old_style_percentage,
bool _retain_completed)
: is_done(false),
last_progress(progress_info::none()),
message(_message),
old_style_percentage(_old_style_percentage),
retain_completed(_retain_completed)
{
}
bool progress_display_impl::should_update(const progress_info &progress) const
{
if(progress.get_type() != last_progress.get_type())
return true;
if(progress.get_type() == progress_type_bar &&
progress.get_progress_percent_int() != last_progress.get_progress_percent_int())
return true;
if(progress.get_progress_status() != last_progress.get_progress_status())
return true;
return false;
}
void progress_display_impl::set_progress(const progress_info &progress)
{
if(should_update(progress))
{
switch(progress.get_type())
{
case progress_type_none:
message->set_text(L"");
break;
case progress_type_pulse:
if(old_style_percentage)
message->set_text( (wformat(L"%s...")
% transcode(progress.get_progress_status())).str() );
else
message->set_text( (wformat(L"[----] %s")
% transcode(progress.get_progress_status())).str() );
break;
case progress_type_bar:
if(old_style_percentage)
message->set_text( (wformat(L"%s... %d%%")
% transcode(progress.get_progress_status())
% progress.get_progress_percent_int()).str() );
else
message->set_text( (wformat(L"[%3d%%] %s")
% progress.get_progress_percent_int()
% transcode(progress.get_progress_status())).str() );
break;
default:
message->set_text(L"INTERNAL ERROR");
break;
}
is_done = false;
last_progress = progress;
}
}
void progress_display_impl::done()
{
if(last_progress.get_type() != progress_type_none &&
!is_done)
{
if(retain_completed)
{
const std::wstring msg =
transcode(last_progress.get_progress_status());
if(old_style_percentage)
message->display_and_advance( (wformat(L"%s... %s")
% msg
% transcode(_("Done"))).str() );
else
message->display_and_advance( (wformat(L"[%4s] %s")
// ForTranslators: the string replacing "DONE"
// be truncated or padded to 4 characters.
% transcode(_("DONE"))
% msg).str() );
}
else
message->set_text(L"");
last_progress = progress_info::none();
is_done = true;
}
}
}
shared_ptr<views::progress>
create_progress_display(const shared_ptr<transient_message> &message,
bool old_style_percentage,
bool retain_completed)
{
return make_shared<progress_display_impl>(message,
old_style_percentage,
retain_completed);
}
shared_ptr<views::progress>
create_progress_display(const shared_ptr<terminal_locale> &term_locale,
const shared_ptr<terminal_metrics> &term_metrics,
const shared_ptr<terminal_output> &term_output)
{
const shared_ptr<transient_message> message =
create_transient_message(term_locale, term_metrics, term_output);
const bool old_style_percentage =
aptcfg->FindB(PACKAGE "::CmdLine::Progress::Percent-On-Right", false);
const bool retain_completed =
aptcfg->FindB(PACKAGE "::CmdLine::Progress::Retain-Completed", false);
return create_progress_display(message,
old_style_percentage,
retain_completed);
}
}
}
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