// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.actions.mapmode;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.Cursor;
import java.awt.Point;
import java.awt.event.MouseEvent;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.coor.EastNorth;
import org.openstreetmap.josm.gui.layer.markerlayer.PlayHeadMarker;
/**
* Singleton marker class to track position of audio.
*
* @author david.earl
*
*/
public class PlayHeadDragMode extends MapMode {
private boolean dragging = false;
private Point mousePos = null;
private Point mouseStart = null;
private PlayHeadMarker playHeadMarker = null;
/**
* Constructs a new {@code PlayHeadDragMode}.
* @param m Audio marker
*/
public PlayHeadDragMode(PlayHeadMarker m) {
super(tr("Drag play head"), "playheaddrag", tr("Drag play head"), null,
Main.map, Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
playHeadMarker = m;
}
@Override public void enterMode() {
super.enterMode();
Main.map.mapView.addMouseListener(this);
Main.map.mapView.addMouseMotionListener(this);
}
@Override public void exitMode() {
super.exitMode();
Main.map.mapView.removeMouseListener(this);
Main.map.mapView.removeMouseMotionListener(this);
}
@Override public void mousePressed(MouseEvent ev) {
mouseStart = mousePos = ev.getPoint();
}
@Override public void mouseDragged(MouseEvent ev) {
if (mouseStart == null || mousePos == null) return;
if ((ev.getModifiersEx() & MouseEvent.BUTTON1_DOWN_MASK) == 0) return;
Point p = ev.getPoint();
if (! dragging) {
if (p.distance(mouseStart) < 3) return;
playHeadMarker.startDrag();
dragging = true;
}
if (p.distance(mousePos) == 0) return;
playHeadMarker.drag(Main.map.mapView.getEastNorth(ev.getX(), ev.getY()));
mousePos = p;
}
@Override public void mouseReleased(MouseEvent ev) {
Point p = ev.getPoint();
mouseStart = null;
if (ev.getButton() != MouseEvent.BUTTON1 || p == null || ! dragging)
return;
requestFocusInMapView();
updateKeyModifiers(ev);
EastNorth en = Main.map.mapView.getEastNorth(ev.getX(), ev.getY());
if (! shift) {
playHeadMarker.reposition(en);
} else {
playHeadMarker.synchronize(en);
}
mousePos = null;
dragging = false;
}
@Override public String getModeHelpText() {
return tr("Drag play head and release near track to play audio from there; SHIFT+release to synchronize audio at that point.");
}
}