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livetrax/gtk2_ardour/interthread_progress_window.cc
Damien Zammit a9907b7d56 ipw: Fix race condition with polling the cancel state of the dialog
Sometimes the interthread process window dialog reports "cancelled"
when it was not actually cancelled, it was just hidden and reshown,
Since we are polling the cancel state interthread, we must reset
the cancel status BEFORE the dialog is shown, and never toggle the
cancel state unless it is a true cancel action by the user.
2018-10-02 20:14:04 +10:00

118 lines
3.4 KiB
C++

/*
Copyright (C) 2010 Paul Davis
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.
*/
#include <glibmm/main.h>
#include <gtkmm/stock.h>
#include "gtkmm2ext/utils.h"
#include "ardour/import_status.h"
#include "interthread_progress_window.h"
#include "pbd/i18n.h"
using namespace std;
using namespace Gtk;
/** @param i Status information.
* @param t Window title.
* @param c Label to use for Cancel button.
*/
InterthreadProgressWindow::InterthreadProgressWindow (ARDOUR::InterThreadInfo* i, string const & t, string const & c)
: ArdourDialog (t, true)
, _interthread_info (i)
{
_interthread_info->cancel = false;
_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
set_border_width (12);
get_vbox()->set_spacing (6);
get_vbox()->pack_start (_bar, false, false);
Button* b = add_button (Stock::CANCEL, RESPONSE_CANCEL);
b->signal_clicked().connect (sigc::mem_fun (*this, &InterthreadProgressWindow::cancel_clicked));
_cancel_label.set_text (c);
_cancel_button.add (_cancel_label);
set_default_size (200, 100);
show_all ();
Glib::signal_timeout().connect (sigc::mem_fun (*this, &InterthreadProgressWindow::update), 100);
}
void
InterthreadProgressWindow::on_hide ()
{
if (_interthread_info && !_interthread_info->done) {
//catch user pressing 'esc' or WM close
_interthread_info->cancel = true;
}
}
void
InterthreadProgressWindow::cancel_clicked ()
{
_interthread_info->cancel = true;
}
bool
InterthreadProgressWindow::update ()
{
_bar.set_fraction (_interthread_info->progress);
return !(_interthread_info->done || _interthread_info->cancel);
}
/** @param i Status information.
* @param t Window title.
* @param c Label to use for Cancel button.
*/
ImportProgressWindow::ImportProgressWindow (ARDOUR::ImportStatus* s, string const & t, string const & c)
: InterthreadProgressWindow (s, t, c)
, _import_status (s)
{
_label.set_alignment (0, 0.5);
_label.set_use_markup (true);
get_vbox()->pack_start (_label, false, false);
_label.show ();
}
bool
ImportProgressWindow::update ()
{
_cancel_button.set_sensitive (!_import_status->freeze);
_label.set_markup ("<i>" + Gtkmm2ext::markup_escape_text (_import_status->doing_what) + "</i>");
/* use overall progress for the bar, rather than that for individual files */
_bar.set_fraction ((_import_status->current - 1 + _import_status->progress) / _import_status->total);
/* some of the code which sets up _import_status->current may briefly increment it too far
at the end of an import, so check for that to avoid a visual glitch
*/
uint32_t c = _import_status->current;
if (c > _import_status->total) {
c = _import_status->total;
}
_bar.set_text (string_compose (_("Importing file: %1 of %2"), c, _import_status->total));
return !(_import_status->all_done || _import_status->cancel);
}