WIP. PlayQueue

2014-11-04 20:37:19 +01:00
parent 67e9e79c0e
commit d0e472028d
9 changed files with 322 additions and 52 deletions
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2014 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "PlayQueue.hpp"
+
+namespace UserInterface {
+
+
+PlayQueue::PlayQueue(Database::Handler& db, Wt::WContainerWidget* parent)
+: Wt::WTableView(parent),
+_db(db),
+_playingTrackId(0)
+{
+	_model = new Wt::WStandardItemModel(0, 4, this);
+
+	// 0 Column is hidden (track id)
+	_model->setHeaderData(0, Wt::WString("#"));
+	_model->setHeaderData(1, Wt::WString("#"));
+	_model->setHeaderData(2, Wt::WString("Track"));
+	_model->setHeaderData(3, Wt::WString("Duration"));
+
+	this->setModel(_model);
+	this->setSelectionMode(Wt::ExtendedSelection);
+	this->setSortingEnabled(false);
+	this->setAlternatingRowColors(true);
+
+	this->setColumnWidth(0, 50);
+	this->setColumnWidth(1, 50);
+
+	this->setColumnHidden(0, true);
+
+	this->doubleClicked().connect( std::bind([=] (Wt::WModelIndex idx, Wt::WMouseEvent evt)
+	{
+		if (!idx.isValid())
+			return;
+
+		// Update selection
+		Wt::WModelIndexSet indexSet;
+		indexSet.insert(idx);
+
+		this->setSelectedIndexes( indexSet );
+
+		// Read the requested track
+		readTrack(idx.row());
+
+	}, std::placeholders::_1, std::placeholders::_2));
+
+}
+
+void
+PlayQueue::play(void)
+{
+	readTrack(0);
+}
+
+void
+PlayQueue::addTracks(const std::vector<Database::Track::id_type>& trackIds)
+{
+	// Add tracks to model
+	Wt::Dbo::Transaction transaction(_db.getSession());
+
+	BOOST_FOREACH(Database::Track::id_type trackId, trackIds)
+	{
+		Database::Track::pointer track (Database::Track::getById(_db.getSession(), trackId));
+
+		if (track)
+		{
+			int dataRow = _model->rowCount();
+
+			_model->insertRows(dataRow, 1);
+
+			_model->setData(dataRow, 0, track.id());
+			_model->setData(dataRow, 1, dataRow + 1);
+			_model->setData(dataRow, 2, track->getName());
+			_model->setData(dataRow, 3, track->getDuration());
+		}
+	}
+}
+
+void
+PlayQueue::clear(void)
+{
+	_model->removeRows(0, _model->rowCount());
+}
+
+void
+PlayQueue::handlePlaybackComplete(void)
+{
+	// Play the next track
+	readTrack(_playingTrackId + 1);
+}
+
+void
+PlayQueue::readTrack(int rowId)
+{
+	Wt::Dbo::Transaction transaction(_db.getSession());
+
+	while (rowId < _model->rowCount())
+	{
+		Database::Track::id_type trackId = boost::any_cast<Database::Track::id_type>(_model->data(rowId, 0));
+
+		Database::Track::pointer track = Database::Track::getById(_db.getSession(), trackId);
+		if (track)
+		{
+			_playingTrackId = rowId;
+			_sigTrackPlay.emit(track->getPath());
+			break;
+		}
+
+		++rowId;
+	}
+}
+
+
+} // namespace UserInterface
+