/*
* Copyright 2013-2014 TECO - Karlsruhe Institute of Technology.
*
* This file is part of TACET.
*
* TACET 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.
*
* TACET 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 TACET. If not, see <http://www.gnu.org/licenses/>.
*/
package squirrel.controller;
import java.util.ArrayList;
import java.util.List;
import squirrel.model.TimeListener;
import squirrel.util.Range;
public class TrackSynchroniser implements TrackEventBus, TimeListener {
private List<Entry> trackControllers = new ArrayList<>();
private long startTime;
/**
* A little helper class, that associates a track with a group.
*/
private class Entry {
TrackController trackController;
int group;
Entry(int group, TrackController trackController) {
this.trackController = trackController;
this.group = group;
}
}
/**
* Constructs a new instance of this class using {@code startTime} to
* convert the current time to a time that is applicable to the
* {@code TrackController}s.
*
* @param startTime the time used to convert between current and track time
*/
public TrackSynchroniser(long startTime) {
this.startTime = startTime;
}
@Override
public void subscribe(TrackController instance, int group) {
trackControllers.add(new Entry(group, instance));
}
@Override
public void publishVisibleExcerptMoved(TrackController publisher, int group, int delta) {
for (Entry e : trackControllers) {
if (e.group == group && publisher != e.trackController) {
e.trackController.visibleExcerptMoved(delta);
}
}
}
@Override
public void publishExcerptSelected(TrackController publisher, int group, Range selection) {
for (Entry e : trackControllers) {
if (e.group == group && publisher != e.trackController) {
e.trackController.excerptSelected(selection);
}
}
}
@Override
public void publishSelectionCanceled(TrackController publisher, int group) {
for (Entry e : trackControllers) {
if (e.group == group && publisher != e.trackController) {
e.trackController.excerptSelectionCanceled();
}
}
}
@Override
public void publishZoomStepChanged(TrackController publisher, int group,
double newPixelTimeRatio) {
for (Entry e : trackControllers) {
if (e.group == group && publisher != e.trackController) {
e.trackController.zoomStepChanged(newPixelTimeRatio);
}
}
}
@Override
public void timeChanged(long timeStamp) {
for (Entry e : trackControllers) {
e.trackController.timeChanged(timeStamp + startTime);
}
}
@Override
public void setPlay() {
// TODO Auto-generated method stub
}
@Override
public void setPause() {
// TODO Auto-generated method stub
}
}