void CanvasModel::handleCommand(protocol::MessagePtr cmd)
{
using namespace protocol;
// Apply ACL filter
if(!m_aclfilter->filterMessage(*cmd)) {
qDebug("Filtered message %d from %d", cmd->type(), cmd->contextId());
return;
}
if(cmd->isMeta()) {
// Handle meta commands here
switch(cmd->type()) {
case MSG_CHAT:
metaChat(cmd.cast<Chat>());
break;
case MSG_USER_JOIN:
metaUserJoin(cmd.cast<UserJoin>());
break;
case MSG_USER_LEAVE:
metaUserLeave(cmd.cast<UserLeave>());
break;
case MSG_SESSION_OWNER:
case MSG_USER_ACL:
case MSG_SESSION_ACL:
case MSG_LAYER_ACL:
// Handled by the ACL filter
break;
case MSG_INTERVAL:
/* intervals are used only when playing back recordings */
break;
case MSG_LASERTRAIL:
metaLaserTrail(cmd.cast<protocol::LaserTrail>());
break;
case MSG_MOVEPOINTER:
metaMovePointer(cmd.cast<MovePointer>());
break;
case MSG_MARKER:
metaMarkerMessage(cmd.cast<Marker>());
break;
default:
qWarning("Unhandled meta message type %d", cmd->type());
}
} else if(cmd->isCommand()) {
// The state tracker handles all drawing commands
m_statetracker->receiveQueuedCommand(cmd);
emit canvasModified();
} else {
qWarning("CanvasModel::handleDrawingCommand: command %d is neither Meta nor Command type!", cmd->type());
}
}
void IndexBuilder::addToIndex(const protocol::MessagePtr msg)
{
IndexType type = IDX_NULL;
QString title;
quint32 color = _colors[msg->contextId()];
switch(msg->type()) {
using namespace protocol;
case MSG_CANVAS_RESIZE: type = IDX_RESIZE; break;
case MSG_LAYER_CREATE: type = IDX_CREATELAYER; break;
case MSG_LAYER_DELETE: type = IDX_DELETELAYER; break;
case MSG_PUTIMAGE: type = IDX_PUTIMAGE; break;
case MSG_PEN_MOVE:
case MSG_PEN_UP: type = IDX_STROKE; break;
case MSG_TOOLCHANGE:
_colors[msg->contextId()] = msg.cast<const protocol::ToolChange>().color();
break;
case MSG_ANNOTATION_CREATE:
case MSG_ANNOTATION_DELETE:
case MSG_ANNOTATION_EDIT:
case MSG_ANNOTATION_RESHAPE: type = IDX_ANNOTATE; break;
case MSG_UNDO:
if(msg.cast<const protocol::Undo>().points() > 0)
type = IDX_UNDO;
else
type = IDX_REDO;
break;
case MSG_FILLRECT:
type = IDX_FILL;
color = msg.cast<const protocol::FillRect>().color();
break;
case MSG_CHAT:
type = IDX_CHAT;
title = msg.cast<const protocol::Chat>().message().left(32);
break;
case MSG_INTERVAL: type = IDX_PAUSE; break;
case MSG_MOVEPOINTER: type = IDX_LASER; break;
case MSG_MARKER:
type = IDX_MARKER;
title = msg.cast<const protocol::Marker>().text();
break;
case MSG_USER_JOIN:
m_index.m_ctxnames[msg->contextId()] = msg.cast<const protocol::UserJoin>().name();
return;
default: break;
}
if(type==IDX_NULL) {
return;
} else if(type==IDX_PUTIMAGE || type==IDX_ANNOTATE) {
// Combine consecutive messages from the same user
for(int i=m_index.m_index.size()-1;i>=0;--i) {
IndexEntry &e = m_index.m_index[i];
if(e.context_id == msg->contextId()) {
if(e.type == type) {
e.end = _pos;
return;
}
break;
}
}
} else if(type==IDX_LASER) {
// Combine laser pointer strokes
for(int i=m_index.m_index.size()-1;i>=0;--i) {
IndexEntry &e = m_index.m_index[i];
if(e.context_id == msg->contextId()) {
if(!(e.flags & IndexEntry::FLAG_FINISHED)) {
e.end = _pos;
if(msg->type() == protocol::MSG_LASERTRAIL)
e.flags |= IndexEntry::FLAG_FINISHED;
return;
}
break;
}
}
} else if(type==IDX_STROKE) {
// Combine all strokes up to last pen-up from the same user
for(int i=m_index.m_index.size()-1;i>=0;--i) {
IndexEntry &e = m_index.m_index[i];
if(e.context_id == msg->contextId() && e.type == IDX_STROKE) {
if(!(e.flags & IndexEntry::FLAG_FINISHED)) {
e.end = _pos;
if(msg->type() == protocol::MSG_PEN_UP)
e.flags |= IndexEntry::FLAG_FINISHED;
return;
}
break;
}
}
}
// New index entry
m_index.m_index.append(IndexEntry(type, msg->contextId(), _offset, _pos, _pos, color, title));
}