void
NodePainter::
drawEntryLabels(QPainter * painter,
NodeGeometry const & geom,
NodeState const & state,
NodeDataModel const * model)
{
QFontMetrics const & metrics =
painter->fontMetrics();
for(PortType portType: {PortType::Out, PortType::In})
{
auto const &nodeStyle = model->nodeStyle();
auto& entries = state.getEntries(portType);
size_t n = entries.size();
for (size_t i = 0; i < n; ++i)
{
QPointF p = geom.portScenePosition(i, portType);
if (entries[i].empty())
painter->setPen(nodeStyle.FontColorFaded);
else
painter->setPen(nodeStyle.FontColor);
QString s;
if (model->portCaptionVisible(portType, i))
{
s = model->portCaption(portType, i);
}
else
{
s = model->dataType(portType, i).name;
}
auto rect = metrics.boundingRect(s);
p.setY(p.y() + rect.height() / 4.0);
switch (portType)
{
case PortType::In:
p.setX(5.0);
break;
case PortType::Out:
p.setX(geom.width() - 5.0 - rect.width());
break;
default:
break;
}
painter->drawText(p, s);
}
}
}
void
NodePainter::
drawFilledConnectionPoints(QPainter* painter,
NodeGeometry const& geom,
NodeState const& state)
{
painter->setPen(Qt::cyan);
painter->setBrush(Qt::cyan);
auto diameter = geom.connectionPointDiameter();
auto drawPoints =
[&](PortType portType)
{
size_t n = state.getEntries(portType).size();
for (size_t i = 0; i < n; ++i)
{
QPointF p = geom.connectionPointScenePosition(i, portType);
if (!state.connectionID(portType, i).isNull())
{
painter->drawEllipse(p,
diameter * 0.4,
diameter * 0.4);
}
}
};
drawPoints(PortType::OUT);
drawPoints(PortType::IN);
}
void
NodePainter::
drawConnectionPoints(QPainter* painter,
NodeGeometry const& geom,
NodeState const& state)
{
painter->setBrush(QColor(Qt::darkGray));
auto diameter = geom.connectionPointDiameter();
auto reducedDiameter = diameter * 0.6;
auto drawPoints =
[&](PortType portType)
{
size_t n = state.getEntries(portType).size();
for (size_t i = 0; i < n; ++i)
{
QPointF p = geom.connectionPointScenePosition(i, portType);
double r = 1.0;
if (state.isReacting() &&
state.getEntries(portType)[i].isNull())
{
auto diff = geom.draggingPos() - p;
double dist = std::sqrt(QPointF::dotProduct(diff, diff));
double const thres = 40.0;
r = (dist < thres) ?
(2.0 - dist / thres ) :
1.0;
}
painter->drawEllipse(p,
reducedDiameter * r,
reducedDiameter * r);
}
};
drawPoints(PortType::OUT);
drawPoints(PortType::IN);
}
void
NodePainter::
drawFilledConnectionPoints(QPainter * painter,
NodeGeometry const & geom,
NodeState const & state,
NodeDataModel const * model)
{
NodeStyle const& nodeStyle = model->nodeStyle();
auto const & connectionStyle = StyleCollection::connectionStyle();
auto diameter = nodeStyle.ConnectionPointDiameter;
for(PortType portType: {PortType::Out, PortType::In})
{
size_t n = state.getEntries(portType).size();
for (size_t i = 0; i < n; ++i)
{
QPointF p = geom.portScenePosition(i, portType);
if (!state.getEntries(portType)[i].empty())
{
auto const & dataType = model->dataType(portType, i);
if (connectionStyle.useDataDefinedColors())
{
QColor const c = connectionStyle.normalColor(dataType.id);
painter->setPen(c);
painter->setBrush(c);
}
else
{
painter->setPen(nodeStyle.FilledConnectionPointColor);
painter->setBrush(nodeStyle.FilledConnectionPointColor);
}
painter->drawEllipse(p,
diameter * 0.4,
diameter * 0.4);
}
}
}
}
void
NodePainter::
drawEntryLabels(QPainter* painter,
NodeGeometry const& geom,
NodeState const& state,
std::unique_ptr<NodeDataModel> const & model)
{
QFontMetrics const & metrics =
painter->fontMetrics();
auto drawPoints =
[&](PortType portType)
{
auto& entries = state.getEntries(portType);
size_t n = entries.size();
for (size_t i = 0; i < n; ++i)
{
QPointF p = geom.connectionPointScenePosition(i, portType);
if (entries[i].isNull())
painter->setPen(Qt::darkGray);
else
painter->setPen(QColor(Qt::lightGray).lighter());
QString s = model->data(portType, i)->name();
auto rect = metrics.boundingRect(s);
p.setY(p.y() + rect.height() / 4.0);
if (portType == PortType::IN)
p.setX(5.0);
else
p.setX(geom.width() - 5.0 - rect.width());
painter->drawText(p, s);
}
};
drawPoints(PortType::OUT);
drawPoints(PortType::IN);
}
void
NodePainter::
drawConnectionPoints(QPainter* painter,
NodeGeometry const& geom,
NodeState const& state,
NodeDataModel const * model,
FlowScene const & scene)
{
NodeStyle const& nodeStyle = model->nodeStyle();
auto const &connectionStyle = StyleCollection::connectionStyle();
float diameter = nodeStyle.ConnectionPointDiameter;
auto reducedDiameter = diameter * 0.6;
for(PortType portType: {PortType::Out, PortType::In})
{
size_t n = state.getEntries(portType).size();
for (unsigned int i = 0; i < n; ++i)
{
QPointF p = geom.portScenePosition(i, portType);
auto const & dataType = model->dataType(portType, i);
bool canConnect = (state.getEntries(portType)[i].empty() ||
(portType == PortType::Out &&
model->portOutConnectionPolicy(i) == NodeDataModel::ConnectionPolicy::Many) );
double r = 1.0;
if (state.isReacting() &&
canConnect &&
portType == state.reactingPortType())
{
auto diff = geom.draggingPos() - p;
double dist = std::sqrt(QPointF::dotProduct(diff, diff));
bool typeConvertable = false;
{
if (portType == PortType::In)
{
typeConvertable = scene.registry().getTypeConverter(state.reactingDataType(), dataType) != nullptr;
}
else
{
typeConvertable = scene.registry().getTypeConverter(dataType, state.reactingDataType()) != nullptr;
}
}
if (state.reactingDataType().id == dataType.id || typeConvertable)
{
double const thres = 40.0;
r = (dist < thres) ?
(2.0 - dist / thres ) :
1.0;
}
else
{
double const thres = 80.0;
r = (dist < thres) ?
(dist / thres) :
1.0;
}
}
if (connectionStyle.useDataDefinedColors())
{
painter->setBrush(connectionStyle.normalColor(dataType.id));
}
else
{
painter->setBrush(nodeStyle.ConnectionPointColor);
}
painter->drawEllipse(p,
reducedDiameter * r,
reducedDiameter * r);
}
};
}
