void EC_LINE::Apply( EDIT_POINT& aHandle )
{
SEG main( m_constrainer.GetPosition(), m_constrainer.GetPosition() + m_line );
SEG projection( aHandle.GetPosition(), aHandle.GetPosition() + m_line.Perpendicular() );
if( OPT_VECTOR2I intersect = projection.IntersectLines( main ) )
aHandle.SetPosition( *intersect );
}
void EC_45DEGREE::Apply( EDIT_POINT& aHandle )
{
// Current line vector
VECTOR2I lineVector( aHandle.GetPosition() - m_constrainer.GetPosition() );
double angle = lineVector.Angle();
// Find the closest angle, which is a multiple of 45 degrees
double newAngle = KiROUND( angle / ( M_PI / 4.0 ) ) * M_PI / 4.0;
VECTOR2I newLineVector = lineVector.Rotate( newAngle - angle );
aHandle.SetPosition( m_constrainer.GetPosition() + newLineVector );
}
void EC_CIRCLE::Apply( EDIT_POINT& aHandle )
{
VECTOR2I centerToEnd = m_end.GetPosition() - m_center.GetPosition();
VECTOR2I centerToPoint = aHandle.GetPosition() - m_center.GetPosition();
int radius = centerToEnd.EuclideanNorm();
double angle = centerToPoint.Angle();
VECTOR2I newLine( radius, 0 );
newLine = newLine.Rotate( angle );
aHandle.SetPosition( m_center.GetPosition() + newLine );
}
void EC_HORIZONTAL::Apply( EDIT_POINT& aHandle )
{
VECTOR2I point = aHandle.GetPosition();
point.y = m_constrainer.GetPosition().y;
aHandle.SetPosition( point );
}
void EC_VERTICAL::Apply( EDIT_POINT& aHandle )
{
VECTOR2I point = aHandle.GetPosition();
point.x = m_constrainer.GetPosition().x;
aHandle.SetPosition( point );
}