private SegmentDrawing CalculateUnidirectedLineSegments(ClassVisual sourceVisual, ClassVisual targetVisual)
{
float yLocation = sourceVisual.Location.Y + sourceVisual.Size.Height / 2f;
var startPoint = new Point(sourceVisual.Location.X + sourceVisual.Size.Width, yLocation);
var endPoint = new Point(targetVisual.Location.X, yLocation);
return(new SegmentDrawing(startPoint, endPoint));
}
private void CalculateCompositionPoints(ClassVisual sourceVisual, ClassVisual targetVisual)
{
CalculateDirectedLineSegments(sourceVisual, targetVisual, 20f);
var startPoint = new Point(sourceVisual.Location.X + sourceVisual.Size.Width, sourceVisual.Location.Y + sourceVisual.Size.Height / 2f);
var aggrUp = startPoint.Subtract(new Point(-10f, 10f));
var aggrDown = startPoint.Add(new Point(10f, +10f));
var aggrRight = startPoint.Add(new Point(20f, 0f));
_drawings.Add(new PolygonDrawing(startPoint, aggrUp, aggrRight, aggrDown));
}
private void RotateLineSegments(ClassVisual sourceVisual, ClassVisual targetVisual)
{
var startPoint = new Point(sourceVisual.Location.X + sourceVisual.Size.Width, sourceVisual.Location.Y + sourceVisual.Size.Height / 2f);
var trueEndPoint = new Point(targetVisual.Location.X, targetVisual.Location.Y + targetVisual.Size.Height / 2f);
var rotationCenter = startPoint;
var angle = startPoint.CalculateAngle(trueEndPoint);
foreach (Drawing d in _drawings)
{
d.RotateAround(rotationCenter, angle);
}
}
private void CalculateDirectedLineSegments(ClassVisual sourceVisual, ClassVisual targetVisual, float xOffset = 0f)
{
float commonY = sourceVisual.Location.Y + sourceVisual.Size.Height / 2f;
var startPoint = new Point(sourceVisual.Location.X + sourceVisual.Size.Width + xOffset, commonY);
var commonYEndPoint = new Point(targetVisual.Location.X, commonY);
var arrowPointUpper = new Point(commonYEndPoint.X - 10f, commonYEndPoint.Y - 10f);
var arrowPointLower = new Point(commonYEndPoint.X - 10f, commonYEndPoint.Y + 10f);
_drawings.Add(new SegmentDrawing(startPoint, commonYEndPoint));
_drawings.Add(new SegmentDrawing(arrowPointLower, commonYEndPoint));
_drawings.Add(new SegmentDrawing(arrowPointUpper, commonYEndPoint));
}
private void Initialize()
{
foreach (var @class in _mCd.Classes)
{
var cv = new ClassVisual(@class);
_classVisuals[@class] = cv;
AddChild(cv);
}
foreach (var assoc in _mCd.Associations)
{
var assocVisual = new AssociationVisual(assoc, this);
_associationVisuals[assoc] = assocVisual;
AddChild(assocVisual);
}
}