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Diffstat (limited to 'src/engine/events/CreateNodeEvent.cpp')
| -rw-r--r-- | src/engine/events/CreateNodeEvent.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/src/engine/events/CreateNodeEvent.cpp b/src/engine/events/CreateNodeEvent.cpp new file mode 100644 index 00000000..b58bc2c3 --- /dev/null +++ b/src/engine/events/CreateNodeEvent.cpp @@ -0,0 +1,151 @@ +/* This file is part of Ingen. + * Copyright (C) 2007 Dave Robillard <http://drobilla.net> + * + * Ingen 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 2 of the License, or (at your option) any later + * version. + * + * Ingen 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 details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <raul/Maid.hpp> +#include <raul/Path.hpp> +#include <raul/Path.hpp> +#include <redlandmm/World.hpp> +#include "module/World.hpp" +#include "CreateNodeEvent.hpp" +#include "Responder.hpp" +#include "PatchImpl.hpp" +#include "NodeImpl.hpp" +#include "PluginImpl.hpp" +#include "Engine.hpp" +#include "PatchImpl.hpp" +#include "NodeFactory.hpp" +#include "ClientBroadcaster.hpp" +#include "EngineStore.hpp" +#include "PortImpl.hpp" +#include "AudioDriver.hpp" + +namespace Ingen { + + +CreateNodeEvent::CreateNodeEvent(Engine& engine, SharedPtr<Responder> responder, SampleCount timestamp, const string& path, + const string& plugin_uri, bool polyphonic) +: QueuedEvent(engine, responder, timestamp), + _path(path), + _plugin_uri(plugin_uri), + _polyphonic(polyphonic), + _patch(NULL), + _node(NULL), + _compiled_patch(NULL), + _node_already_exists(false) +{ +} + + +/** DEPRECATED: Construct from type, library name, and plugin label. + * + * Do not use. + */ +CreateNodeEvent::CreateNodeEvent(Engine& engine, SharedPtr<Responder> responder, SampleCount timestamp, const string& path, + const string& plugin_type, const string& plugin_lib, const string& plugin_label, bool polyphonic) +: QueuedEvent(engine, responder, timestamp), + _path(path), + _plugin_type(plugin_type), + _plugin_lib(plugin_lib), + _plugin_label(plugin_label), + _polyphonic(polyphonic), + _patch(NULL), + _node(NULL), + _compiled_patch(NULL), + _node_already_exists(false) +{ +} + + +void +CreateNodeEvent::pre_process() +{ + if (_engine.engine_store()->find_object(_path) != NULL) { + _node_already_exists = true; + QueuedEvent::pre_process(); + return; + } + + _patch = _engine.engine_store()->find_patch(_path.parent()); + + PluginImpl* const plugin = (_plugin_uri != "") + ? _engine.node_factory()->plugin(_plugin_uri) + : _engine.node_factory()->plugin(_plugin_type, _plugin_lib, _plugin_label); + + if (_patch && plugin) { + + _node = plugin->instantiate(_path.name(), _polyphonic, _patch, _engine); + + if (_node != NULL) { + _node->activate(); + + // This can be done here because the audio thread doesn't touch the + // node tree - just the process order array + _patch->add_node(new PatchImpl::Nodes::Node(_node)); + //_node->add_to_store(_engine.engine_store()); + _engine.engine_store()->add(_node); + + // FIXME: not really necessary to build process order since it's not connected, + // just append to the list + if (_patch->enabled()) + _compiled_patch = _patch->compile(); + } + } + QueuedEvent::pre_process(); +} + + +void +CreateNodeEvent::execute(ProcessContext& context) +{ + QueuedEvent::execute(context); + + if (_node != NULL) { + if (_patch->compiled_patch() != NULL) + _engine.maid()->push(_patch->compiled_patch()); + _patch->compiled_patch(_compiled_patch); + } +} + + +void +CreateNodeEvent::post_process() +{ + string msg; + if (_node_already_exists) { + msg = string("Could not create node - ").append(_path);// + " already exists."; + _responder->respond_error(msg); + } else if (_patch == NULL) { + msg = "Could not find patch '" + _path.parent() +"' for add_node."; + _responder->respond_error(msg); + } else if (_node == NULL) { + msg = "Unable to load node "; + msg += _path + " (you're missing the plugin "; + if (_plugin_uri != "") + msg += _plugin_uri; + else + msg += _plugin_lib + ":" + _plugin_label + " (" + _plugin_type + ")"; + msg += ")"; + _responder->respond_error(msg); + } else { + _responder->respond_ok(); + _engine.broadcaster()->send_node(_node, true); // yes, send ports + } +} + + +} // namespace Ingen + |