/** Send Clear command to all members in Group */
public void sendClearPanelMsg() {
DrawCommand comm = new DrawCommand(DrawCommand.CLEAR);
try {
byte[] buf = Util.streamableToByteBuffer(comm);
if (use_unicasts) sendToAll(buf);
else channel.send(new Message(null, null, buf));
} catch (Exception ex) {
System.err.println(ex);
}
}
/**
* Creates a byte[] representation of the PingData, but DISCARDING the view it contains.
*
* @param data the PingData instance to serialize.
* @return
*/
protected byte[] serializeWithoutView(PingData data) {
final PingData clone =
new PingData(
data.getAddress(), data.isServer(), data.getLogicalName(), data.getPhysicalAddr())
.coord(data.isCoord());
try {
return Util.streamableToByteBuffer(clone);
} catch (Exception e) {
log.error(Util.getMessage("ErrorSerializingPingData"), e);
return null;
}
}
/**
* Send State (content on WhiteBoard) to all members of Group
*
* @param copy
*/
protected void sendOwnState(final Map<Point, Color> copy) {
if (copy == null) return;
for (Point point : copy.keySet()) {
// we don't need the color: it is our draw_color anyway
DrawCommand comm = new DrawCommand(DrawCommand.DRAW, point.x, point.y, drawColor.getRGB());
try {
byte[] buf = Util.streamableToByteBuffer(comm);
if (use_unicasts) sendToAll(buf);
else channel.send(new Message(null, buf));
} catch (Exception ex) {
System.err.println(ex);
}
}
}
/**
* When do a mouse drag, get coordinates ( X and Y) of the mouse, then send Draw command as a
* message to member of Group
*/
public void mouseDragged(MouseEvent e) {
int x = e.getX(), y = e.getX();
DrawCommand comm = new DrawCommand(DrawCommand.DRAW, x, y, drawColor.getRGB());
if (noChannel) {
drawPoint(comm);
return;
}
try {
byte[] buf = Util.streamableToByteBuffer(comm);
if (use_unicasts) sendToAll(buf);
else channel.send(new Message(null, null, buf));
} catch (Exception ex) {
System.err.println(ex);
}
}