strip_silence_dialog.h

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/*
    Copyright (C) 2009 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 <gtkmm/spinbutton.h>
#include <glibmm/threads.h>

#include "ardour/types.h"
#include "ardour_dialog.h"
#include "progress_reporter.h"

namespace ARDOUR {
        class Session;
}

class AudioClock;
class RegionView;

class StripSilenceDialog : public ArdourDialog, public ProgressReporter
{
public:
        StripSilenceDialog (ARDOUR::Session*, std::list<RegionView*> const &);
        ~StripSilenceDialog ();

        double threshold () const {
                return _threshold.get_value ();
        }

        void drop_rects ();

        void silences (ARDOUR::AudioIntervalMap&);

        ARDOUR::framecnt_t minimum_length () const;
        ARDOUR::framecnt_t fade_length () const;

private:
        void create_waves ();
        void peaks_ready ();
        void canvas_allocation (Gtk::Allocation &);
        void update_silence_rects ();
        void resize_silence_rects ();
        void update ();
        void update_threshold_line ();
        void update_stats (ARDOUR::AudioIntervalResult const &);
        void threshold_changed ();
        void update_progress_gui (float);
        void restart_thread ();

        Gtk::SpinButton _threshold;
        AudioClock*      _minimum_length;
        AudioClock*      _fade_length;
        Gtk::ProgressBar _progress_bar;

        struct ViewInterval {
            RegionView* view;
            ARDOUR::AudioIntervalResult intervals;

            ViewInterval (RegionView* rv) : view (rv) {}
        };

        std::list<ViewInterval> views;

        PBD::ScopedConnection* _peaks_ready_connection;

        bool _destroying;

        pthread_t _thread; 
        static void * _detection_thread_work (void *);
        void * detection_thread_work ();
        Glib::Threads::Mutex _lock; 
        Glib::Threads::Cond  _run_cond; 
        bool _thread_should_finish; 
        PBD::Signal0<void> Completed; 
        PBD::ScopedConnection _completed_connection;
        ARDOUR::InterThreadInfo _interthread_info;
};