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/*
* Copyright 2009,2010,2011 Reality Jockey, Ltd.
* info@rjdj.me
* http://rjdj.me/
*
* This file is part of ZenGarden.
*
* ZenGarden is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ZenGarden 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with ZenGarden. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "MessagePipe.h"
#include "PdGraph.h"
message::Object *MessagePipe::new_object(pd::Message *init_message, PdGraph *graph) {
return new MessagePipe(init_message, graph);
}
MessagePipe::MessagePipe(pd::Message *init_message, PdGraph *graph) : message::Object(2, 1, graph) {
delayMs = init_message->is_float(0) ? (double) init_message->get_float(0) : 0.0;
}
MessagePipe::~MessagePipe() {
// nothing to do
}
bool MessagePipe::should_distribute_message_to_inlets() {
return false;
}
void MessagePipe::send_message(int outlet_index, pd::Message *message) {
// remove the scheduled message from the list before it is sent
scheduledMessagesList.remove(message);
message::Object::send_message(outlet_index, message);
}
void MessagePipe::process_message(int inlet_index, pd::Message *message) {
switch (inlet_index) {
case 0: {
switch (message->get_type(0)) {
case SYMBOL: {
if (message->is_symbol_str(0, "flush")) {
// cancel all scheduled messages and send them immediately
for(list<pd::Message *>::iterator it = scheduledMessagesList.begin();
it != scheduledMessagesList.end(); it++) {
// send the message using the super class's send_message because otherwise the
// list will be changed while iterating over it. Leads to badness.
(*it)->set_timestamp(message->get_timestamp());
message::Object::send_message(0, *it);
graph->cancel_message(this, 0, *it); // cancel the scheduled message and free it from memory
}
scheduledMessagesList.clear();
break;
} else if (message->is_symbol_str(0, "clear")) {
// cancel all scheduled messages
for(list<pd::Message *>::iterator it = scheduledMessagesList.begin();
it != scheduledMessagesList.end(); it++) {
graph->cancel_message(this, 0, *it);
}
scheduledMessagesList.clear();
break;
}
// allow fall-through
}
case FLOAT:
case BANG: {
// copy the message, update the timestamp, schedule it to be sent later
int numElements = message->get_num_elements();
pd::Message *scheduledMessage = PD_MESSAGE_ON_STACK(numElements);
scheduledMessage->from_timestamp(message->get_timestamp() + delayMs, numElements);
memcpy(scheduledMessage->get_element(0), message->get_element(0), numElements * sizeof(pd::message::Atom));
scheduledMessagesList.push_back(graph->schedule_message(this, 0, scheduledMessage));
break;
}
default: {
break;
}
}
}
case 1: {
if (message->is_float(0)) {
delayMs = (double) message->get_float(0);
}
break;
}
default: {
break;
}
}
}