playlist_selector.cc

Go to the documentation of this file.

/*
    Copyright (C) 2004 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/button.h>

#include "ardour/audio_track.h"
#include "ardour/audioplaylist.h"
#include "ardour/playlist.h"
#include "ardour/session_playlist.h"

#include <gtkmm2ext/gtk_ui.h>

#include "playlist_selector.h"
#include "route_ui.h"
#include "gui_thread.h"

#include "i18n.h"

using namespace std;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace ARDOUR;
using namespace PBD;

PlaylistSelector::PlaylistSelector ()
        : ArdourDialog (_("Playlists"))
{
        rui = 0;

        set_name ("PlaylistSelectorWindow");
        set_modal(true);
        add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
        set_size_request (300, 200);

        model = TreeStore::create (columns);
        tree.set_model (model);
        tree.append_column (_("Playlists grouped by track"), columns.text);

        scroller.add (tree);
        scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);

        get_vbox()->set_border_width (6);
        get_vbox()->set_spacing (12);

        get_vbox()->pack_start (scroller);

        Button* b = add_button (_("Close"), RESPONSE_CANCEL);
        b->signal_clicked().connect (sigc::mem_fun(*this, &PlaylistSelector::close_button_click));

}

PlaylistSelector::~PlaylistSelector ()
{
        clear_map ();
}

void
PlaylistSelector::clear_map ()
{
        for (TrackPlaylistMap::iterator x = trpl_map.begin(); x != trpl_map.end(); ++x) {
                delete x->second;
        }
        trpl_map.clear ();
}

bool
PlaylistSelector::on_unmap_event (GdkEventAny* ev)
{
        clear_map ();
        if (model) {
                model->clear ();
        }
        return Dialog::on_unmap_event (ev);
}

void
PlaylistSelector::show_for (RouteUI* ruix)
{
        vector<const char*> item;
        string str;

        rui = ruix;

        set_title (string_compose (_("Playlist for %1"), rui->route()->name()));

        clear_map ();
        select_connection.disconnect ();

        model->clear ();

        _session->playlists->foreach (this, &PlaylistSelector::add_playlist_to_map);

        boost::shared_ptr<Track> this_track = rui->track();

        TreeModel::Row others = *(model->append ());

        others[columns.text] = _("Other tracks");
        boost::shared_ptr<Playlist> proxy = others[columns.playlist];
        proxy.reset ();

        for (TrackPlaylistMap::iterator x = trpl_map.begin(); x != trpl_map.end(); ++x) {

                boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (_session->route_by_id (x->first));
                
                /* legacy sessions stored the diskstream ID as the original
                 * playlist owner. so try there instead.
                 */

                if (tr == 0) {
                        tr = _session->track_by_diskstream_id (x->first);
                }

                if (tr == 0) {
                        continue;
                }

                /* add a node for the track */

                string nodename;

                if (tr->name().empty()) {
                        nodename = _("unassigned");
                } else {
                        nodename = tr->name().c_str();
                }

                TreeModel::Row row;
                TreeModel::Row selected_row;
                bool have_selected = false;
                TreePath this_path;

                if (tr == this_track) {
                        row = *(model->prepend());
                        row[columns.text] = nodename;
                        boost::shared_ptr<Playlist> proxy = row[columns.playlist];
                        proxy.reset ();
                } else {
                        row = *(model->append (others.children()));
                        row[columns.text] = nodename;
                        boost::shared_ptr<Playlist> proxy = row[columns.playlist];
                        proxy.reset ();
                }

                /* Now insert all the playlists for this diskstream/track in a subtree */

                list<boost::shared_ptr<Playlist> >* pls = x->second;

                for (list<boost::shared_ptr<Playlist> >::iterator p = pls->begin(); p != pls->end(); ++p) {

                        TreeModel::Row child_row;

                        child_row = *(model->append (row.children()));
                        child_row[columns.text] = (*p)->name();
                        child_row[columns.playlist] = *p;

                        if (*p == this_track->playlist()) {
                                selected_row = child_row;
                                have_selected = true;
                        }
                }

                if (have_selected) {
                        tree.get_selection()->select (selected_row);
                }
        }

        // Add unassigned (imported) playlists to the list
        list<boost::shared_ptr<Playlist> > unassigned;
        _session->playlists->unassigned (unassigned);

        TreeModel::Row row;
        TreeModel::Row selected_row;
        bool have_selected = false;
        TreePath this_path;

        row = *(model->append (others.children()));
        row[columns.text] = _("Imported");
        proxy = row[columns.playlist];
        proxy.reset ();

        for (list<boost::shared_ptr<Playlist> >::iterator p = unassigned.begin(); p != unassigned.end(); ++p) {
                TreeModel::Row child_row;

                child_row = *(model->append (row.children()));
                child_row[columns.text] = (*p)->name();
                child_row[columns.playlist] = *p;

                if (*p == this_track->playlist()) {
                        selected_row = child_row;
                        have_selected = true;
                }

                if (have_selected) {
                        tree.get_selection()->select (selected_row);
                }
        }

        show_all ();
        select_connection = tree.get_selection()->signal_changed().connect (sigc::mem_fun(*this, &PlaylistSelector::selection_changed));
}

void
PlaylistSelector::add_playlist_to_map (boost::shared_ptr<Playlist> pl)
{
        boost::shared_ptr<AudioPlaylist> apl;

        if (pl->frozen()) {
                return;
        }

        if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
                return;
        }

        TrackPlaylistMap::iterator x;

        if ((x = trpl_map.find (apl->get_orig_track_id())) == trpl_map.end()) {
                x = trpl_map.insert (trpl_map.end(), make_pair (apl->get_orig_track_id(), new list<boost::shared_ptr<Playlist> >));
        }

        x->second->push_back (pl);
}

void
PlaylistSelector::close_button_click ()
{
        rui = 0;
        hide ();
}

void
PlaylistSelector::selection_changed ()
{
        boost::shared_ptr<Playlist> playlist;

        TreeModel::iterator iter = tree.get_selection()->get_selected();

        if (!iter || rui == 0) {
                /* nothing selected */
                return;
        }

        if ((playlist = ((*iter)[columns.playlist])) != 0) {

                boost::shared_ptr<AudioTrack> at;
                boost::shared_ptr<AudioPlaylist> apl;

                if ((at = rui->audio_track()) == 0) {
                        /* eh? */
                        return;
                }

                if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (playlist)) == 0) {
                        /* eh? */
                        return;
                }

                at->use_playlist (apl);

                hide ();
        }

}