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Diffstat (limited to 'src/client/GraphModel.cpp')
-rw-r--r-- | src/client/GraphModel.cpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/client/GraphModel.cpp b/src/client/GraphModel.cpp new file mode 100644 index 00000000..31947ba7 --- /dev/null +++ b/src/client/GraphModel.cpp @@ -0,0 +1,176 @@ +/* + This file is part of Ingen. + Copyright 2007-2015 David Robillard <http://drobilla.net/> + + Ingen is free software: you can redistribute it and/or modify it under the + terms of the GNU Affero General Public License as published by the Free + Software Foundation, either version 3 of the License, or 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 Affero General Public License for details. + + You should have received a copy of the GNU Affero General Public License + along with Ingen. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <cassert> + +#include "ingen/URIs.hpp" +#include "ingen/client/ArcModel.hpp" +#include "ingen/client/BlockModel.hpp" +#include "ingen/client/ClientStore.hpp" +#include "ingen/client/GraphModel.hpp" + +namespace ingen { +namespace client { + +void +GraphModel::add_child(SPtr<ObjectModel> c) +{ + assert(c->parent().get() == this); + + SPtr<PortModel> pm = dynamic_ptr_cast<PortModel>(c); + if (pm) { + add_port(pm); + return; + } + + SPtr<BlockModel> bm = dynamic_ptr_cast<BlockModel>(c); + if (bm) { + _signal_new_block.emit(bm); + } +} + +bool +GraphModel::remove_child(SPtr<ObjectModel> o) +{ + assert(o->path().is_child_of(path())); + assert(o->parent().get() == this); + + SPtr<PortModel> pm = dynamic_ptr_cast<PortModel>(o); + if (pm) { + remove_arcs_on(pm); + remove_port(pm); + } + + SPtr<BlockModel> bm = dynamic_ptr_cast<BlockModel>(o); + if (bm) { + _signal_removed_block.emit(bm); + } + + return true; +} + +void +GraphModel::remove_arcs_on(SPtr<PortModel> p) +{ + // Remove any connections which referred to this object, + // since they can't possibly exist anymore + for (auto j = _arcs.begin(); j != _arcs.end();) { + auto next = j; + ++next; + + SPtr<ArcModel> arc = dynamic_ptr_cast<ArcModel>(j->second); + if (arc->tail_path().parent() == p->path() + || arc->tail_path() == p->path() + || arc->head_path().parent() == p->path() + || arc->head_path() == p->path()) { + _signal_removed_arc.emit(arc); + _arcs.erase(j); // Cuts our reference + } + j = next; + } +} + +void +GraphModel::clear() +{ + _arcs.clear(); + + BlockModel::clear(); + + assert(_arcs.empty()); + assert(_ports.empty()); +} + +SPtr<ArcModel> +GraphModel::get_arc(const Node* tail, const Node* head) +{ + auto i = _arcs.find(std::make_pair(tail, head)); + if (i != _arcs.end()) { + return dynamic_ptr_cast<ArcModel>(i->second); + } else { + return SPtr<ArcModel>(); + } +} + +/** Add a connection to this graph. + * + * A reference to `arc` is taken, released on deletion or removal. + * If `arc` only contains paths (not pointers to the actual ports), the ports + * will be found and set. The ports referred to not existing as children of + * this graph is a fatal error. + */ +void +GraphModel::add_arc(SPtr<ArcModel> arc) +{ + // Store should have 'resolved' the connection already + assert(arc); + assert(arc->tail()); + assert(arc->head()); + assert(arc->tail()->parent()); + assert(arc->head()->parent()); + assert(arc->tail_path() != arc->head_path()); + assert(arc->tail()->parent().get() == this + || arc->tail()->parent()->parent().get() == this); + assert(arc->head()->parent().get() == this + || arc->head()->parent()->parent().get() == this); + + SPtr<ArcModel> existing = get_arc( + arc->tail().get(), arc->head().get()); + + if (existing) { + assert(arc->tail() == existing->tail()); + assert(arc->head() == existing->head()); + } else { + _arcs.emplace(std::make_pair(arc->tail().get(), arc->head().get()), + arc); + _signal_new_arc.emit(arc); + } +} + +void +GraphModel::remove_arc(const Node* tail, const Node* head) +{ + auto i = _arcs.find(std::make_pair(tail, head)); + if (i != _arcs.end()) { + SPtr<ArcModel> arc = dynamic_ptr_cast<ArcModel>(i->second); + _signal_removed_arc.emit(arc); + _arcs.erase(i); + } +} + +bool +GraphModel::enabled() const +{ + const Atom& enabled = get_property(_uris.ingen_enabled); + return (enabled.is_valid() && enabled.get<int32_t>()); +} + +uint32_t +GraphModel::internal_poly() const +{ + const Atom& poly = get_property(_uris.ingen_polyphony); + return poly.is_valid() ? poly.get<int32_t>() : 1; +} + +bool +GraphModel::polyphonic() const +{ + const Atom& poly = get_property(_uris.ingen_polyphonic); + return poly.is_valid() && poly.get<int32_t>(); +} + +} // namespace client +} // namespace ingen |