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Added propagation control functions and fix implicit string conversion in headers. #367

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Added propagation control functions and fix implicit string conversion in headers. #367

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3e99eb3
Added propagation control functions.
rayment Jan 28, 2023
41957ea
Fixed unused variable.
rayment Jan 28, 2023
7f9d7ab
Wrapped header string constants in QLatin1String(...).
rayment Jan 29, 2023
bb42e8f
Changed propagation functions to protected virtual.
rayment Jan 29, 2023
1531218
Formatted changes with clang-format.
rayment Jan 31, 2023
bbd92b7
Merge branch 'master' into data-propagation
rayment Jan 31, 2023
0bdbd77
Made canPropagate a const method.
rayment Jul 29, 2023
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17 changes: 9 additions & 8 deletions include/QtNodes/internal/ConnectionIdUtils.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -130,20 +130,21 @@ inline QJsonObject toJson(ConnectionId const &connId)
{
QJsonObject connJson;

connJson["outNodeId"] = static_cast<qint64>(connId.outNodeId);
connJson["outPortIndex"] = static_cast<qint64>(connId.outPortIndex);
connJson["intNodeId"] = static_cast<qint64>(connId.inNodeId);
connJson["inPortIndex"] = static_cast<qint64>(connId.inPortIndex);
connJson[QLatin1String("outNodeId")] = static_cast<qint64>(connId.outNodeId);
connJson[QLatin1String("outPortIndex")] = static_cast<qint64>(connId.outPortIndex);
connJson[QLatin1String("intNodeId")] = static_cast<qint64>(connId.inNodeId);
connJson[QLatin1String("inPortIndex")] = static_cast<qint64>(connId.inPortIndex);

return connJson;
}

inline ConnectionId fromJson(QJsonObject const &connJson)
{
ConnectionId connId{static_cast<NodeId>(connJson["outNodeId"].toInt(InvalidNodeId)),
static_cast<PortIndex>(connJson["outPortIndex"].toInt(InvalidPortIndex)),
static_cast<NodeId>(connJson["intNodeId"].toInt(InvalidNodeId)),
static_cast<PortIndex>(connJson["inPortIndex"].toInt(InvalidPortIndex))};
ConnectionId connId{
static_cast<NodeId>(connJson[QLatin1String("outNodeId")].toInt(InvalidNodeId)),
static_cast<PortIndex>(connJson[QLatin1String("outPortIndex")].toInt(InvalidPortIndex)),
static_cast<NodeId>(connJson[QLatin1String("intNodeId")].toInt(InvalidNodeId)),
static_cast<PortIndex>(connJson[QLatin1String("inPortIndex")].toInt(InvalidPortIndex))};

return connId;
}
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12 changes: 9 additions & 3 deletions include/QtNodes/internal/DataFlowGraphModel.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -94,17 +94,23 @@ class NODE_EDITOR_PUBLIC DataFlowGraphModel : public AbstractGraphModel, public
return model;
}

public Q_SLOTS:
virtual void propagate(NodeId const nodeId);

protected:
virtual bool canPropagate(ConnectionId const) const { return true; };

Q_SIGNALS:
void inPortDataWasSet(NodeId const, PortType const, PortIndex const);

private:
NodeId newNodeId() override { return _nextNodeId++; }

protected Q_SLOTS:
void sendConnectionCreation(ConnectionId const connectionId);

void sendConnectionDeletion(ConnectionId const connectionId);

private Q_SLOTS:
/**
* Fuction is called in three cases:
*
Expand All @@ -115,10 +121,10 @@ private Q_SLOTS:
* - When a node restored from JSON an needs to send data downstream.
* @see DataFlowGraphModel::loadNode
*/
void onOutPortDataUpdated(NodeId const nodeId, PortIndex const portIndex);
virtual void onOutPortDataUpdated(NodeId const nodeId, PortIndex const portIndex);

/// Function is called after detaching a connection.
void propagateEmptyDataTo(NodeId const nodeId, PortIndex const portIndex);
virtual void propagateEmptyDataTo(NodeId const nodeId, PortIndex const portIndex);

private:
std::shared_ptr<NodeDelegateModelRegistry> _registry;
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8 changes: 4 additions & 4 deletions include/QtNodes/internal/NodeDelegateModelRegistry.hpp
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Expand Up @@ -41,7 +41,7 @@ class NODE_EDITOR_PUBLIC NodeDelegateModelRegistry

public:
template<typename ModelType>
void registerModel(RegistryItemCreator creator, QString const &category = "Nodes")
void registerModel(RegistryItemCreator creator, QString const &category = QLatin1String("Nodes"))
{
QString const name = computeName<ModelType>(HasStaticMethodName<ModelType>{}, creator);
if (!_registeredItemCreators.count(name)) {
Expand All @@ -52,7 +52,7 @@ class NODE_EDITOR_PUBLIC NodeDelegateModelRegistry
}

template<typename ModelType>
void registerModel(QString const &category = "Nodes")
void registerModel(QString const &category = QLatin1String("Nodes"))
{
RegistryItemCreator creator = []() { return std::make_unique<ModelType>(); };
registerModel<ModelType>(std::move(creator), category);
Expand All @@ -62,15 +62,15 @@ class NODE_EDITOR_PUBLIC NodeDelegateModelRegistry
template<typename ModelType>
void
registerModel(RegistryItemCreator creator,
QString const& category = "Nodes")
QString const& category = QLatin1String("Nodes"))
{
registerModel<ModelType>(std::move(creator), category);
}


template <typename ModelCreator>
void
registerModel(ModelCreator&& creator, QString const& category = "Nodes")
registerModel(ModelCreator&& creator, QString const& category = QLatin1String("Nodes"))
{
using ModelType = compute_model_type_t<decltype(creator())>;
registerModel<ModelType>(std::forward<ModelCreator>(creator), category);
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29 changes: 22 additions & 7 deletions src/DataFlowGraphModel.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -138,12 +138,13 @@ void DataFlowGraphModel::addConnection(ConnectionId const connectionId)
PortType::Out,
connectionId.outPortIndex,
PortRole::Data);

setPortData(connectionId.inNodeId,
PortType::In,
connectionId.inPortIndex,
portDataToPropagate,
PortRole::Data);
if (canPropagate(connectionId)) {
setPortData(connectionId.inNodeId,
PortType::In,
connectionId.inPortIndex,
portDataToPropagate,
PortRole::Data);
}
}

void DataFlowGraphModel::sendConnectionCreation(ConnectionId const connectionId)
Expand Down Expand Up @@ -518,7 +519,21 @@ void DataFlowGraphModel::onOutPortDataUpdated(NodeId const nodeId, PortIndex con
QVariant const portDataToPropagate = portData(nodeId, PortType::Out, portIndex, PortRole::Data);

for (auto const &cn : connected) {
setPortData(cn.inNodeId, PortType::In, cn.inPortIndex, portDataToPropagate, PortRole::Data);
if (canPropagate(cn)) {
setPortData(cn.inNodeId,
PortType::In,
cn.inPortIndex,
portDataToPropagate,
PortRole::Data);
}
}
}

void DataFlowGraphModel::propagate(NodeId const nodeId)
{
unsigned int nPorts = nodeData(nodeId, NodeRole::OutPortCount).toUInt();
for (PortIndex idx = 0; idx < nPorts; ++idx) {
onOutPortDataUpdated(nodeId, idx);
}
}

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