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Copy pathConnectionGeometry.cpp
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131 lines (93 loc) · 2.25 KB
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#include "ConnectionGeometry.hpp"
#include <cmath>
#include "StyleCollection.hpp"
using QtNodes::ConnectionGeometry;
using QtNodes::PortType;
ConnectionGeometry::
ConnectionGeometry()
: _in(0, 0)
, _out(0, 0)
//, _animationPhase(0)
, _lineWidth(3.0)
, _hovered(false)
{ }
QPointF const&
ConnectionGeometry::
getEndPoint(PortType portType) const
{
Q_ASSERT(portType != PortType::None);
return (portType == PortType::Out ?
_out :
_in);
}
void
ConnectionGeometry::
setEndPoint(PortType portType, QPointF const& point)
{
switch (portType)
{
case PortType::Out:
_out = point;
break;
case PortType::In:
_in = point;
break;
default:
break;
}
}
void
ConnectionGeometry::
moveEndPoint(PortType portType, QPointF const &offset)
{
switch (portType)
{
case PortType::Out:
_out += offset;
break;
case PortType::In:
_in += offset;
break;
default:
break;
}
}
QRectF
ConnectionGeometry::
boundingRect() const
{
auto points = pointsC1C2();
QRectF basicRect = QRectF(_out, _in).normalized();
QRectF c1c2Rect = QRectF(points.first, points.second).normalized();
auto const &connectionStyle =
StyleCollection::connectionStyle();
float const diam = connectionStyle.pointDiameter();
QRectF commonRect = basicRect.united(c1c2Rect);
QPointF const cornerOffset(diam, diam);
commonRect.setTopLeft(commonRect.topLeft() - cornerOffset);
commonRect.setBottomRight(commonRect.bottomRight() + 2 * cornerOffset);
return commonRect;
}
std::pair<QPointF, QPointF>
ConnectionGeometry::
pointsC1C2() const
{
const double defaultOffset = 200;
double xDistance = _in.x() - _out.x();
double horizontalOffset = qMin(defaultOffset, std::abs(xDistance));
double verticalOffset = 0;
double ratioX = 0.5;
if (xDistance <= 0)
{
double yDistance = _in.y() - _out.y() + 20;
double vector = yDistance < 0 ? -1.0 : 1.0;
verticalOffset = qMin(defaultOffset, std::abs(yDistance)) * vector;
ratioX = 1.0;
}
horizontalOffset *= ratioX;
QPointF c1(_out.x() + horizontalOffset,
_out.y() + verticalOffset);
QPointF c2(_in.x() - horizontalOffset,
_in.y() - verticalOffset);
return std::make_pair(c1, c2);
}