private bool RestoreCildrenPositions()
{
bool result = true;
try {
SuspendUpdate();
Rectangle ownerBounds = Owner.GetBoundingRectangle(true);
// move children to their new absolute position calculated from relativePosition
for (int i = 0; i < shapes.Count; ++i)
{
PointPositions ptPositions = relativePositions[shapes[i]];
Debug.Assert(ptPositions != null);
// This will be the desired solution, but it does not work well for all shapes.
foreach (KeyValuePair <ControlPointId, RelativePosition> item in ptPositions.Items)
{
Debug.Assert(item.Value != RelativePosition.Empty);
Point p = Owner.CalculateAbsolutePosition(item.Value);
Debug.Assert(Geometry.IsValid(p));
shapes[i].MoveControlPointTo(item.Key, p.X, p.Y, ResizeModifiers.None);
}
}
boundingRectangleLoose = boundingRectangleTight = Geometry.InvalidRectangle;
} finally {
ResumeUpdate();
}
return(result);
}
/// <override></override>
public override void CopyFrom(IShapeCollection source)
{
base.CopyFrom(source);
if (source is CompositeShapeAggregation)
{
ResizableShapeAggregation src = (ResizableShapeAggregation)source;
// Copy relative positions of the children
relativePositions.Clear();
int cnt = shapes.Count;
for (int i = 0; i < cnt; ++i)
{
// Copy all items
PointPositions srcPtPositions = src.relativePositions[src.shapes[i]];
PointPositions dstPtPositions = new PointPositions();
foreach (KeyValuePair <ControlPointId, RelativePosition> item in srcPtPositions.Items)
{
dstPtPositions.Items.Add(item.Key, item.Value);
}
relativePositions.Add(shapes[i], dstPtPositions);
}
}
}
private void AddRelativePosition(Shape shape)
{
PointPositions ptPositions = new PointPositions(shape, Owner);
relativePositions.Add(shape, ptPositions);
}
private void AddRelativePosition(Shape shape) {
PointPositions ptPositions = new PointPositions(shape, Owner);
relativePositions.Add(shape, ptPositions);
}
/// <override></override>
public override void CopyFrom(IShapeCollection source) {
base.CopyFrom(source);
if (source is CompositeShapeAggregation) {
CompositeShapeAggregation src = (CompositeShapeAggregation)source;
// Copy relative positions of the children
relativePositions.Clear();
int cnt = shapes.Count;
for (int i = 0; i < cnt; ++i) {
// Copy all items
PointPositions srcPtPositions = src.relativePositions[src.shapes[i]];
PointPositions dstPtPositions = new PointPositions();
foreach (KeyValuePair<ControlPointId, RelativePosition> item in srcPtPositions.Items)
dstPtPositions.Items.Add(item.Key, item.Value);
relativePositions.Add(shapes[i], dstPtPositions);
}
}
}
private bool RestoreCildrenPositions()
{
bool result = true;
try {
SuspendUpdate();
Rectangle ownerBounds = Owner.GetBoundingRectangle(true);
// Move children to their new absolute position calculated from relativePosition
for (int i = 0; i < shapes.Count; ++i)
{
// Get the state of the shape's glue points
GluePointState gluePointState = GetGluePointState(shapes[i]);
if (gluePointState == GluePointState.AllConnected)
{
continue;
}
PointPositions ptPositions = relativePositions[shapes[i]];
Debug.Assert(ptPositions != null);
// Get the 'Anchor' points of the child shapes and move them to the new positions
IEnumerable <ControlPointId> anchorPointIds;
// As long as we do not have attributes for control points that specify move restrictions etc, we
// use specific implementations that work better and/or faster for some shape types and a default
// implementation that works for all other shapes.
if (shapes[i] is ILinearShape)
{
anchorPointIds = GetLineAnchorPoints(shapes[i]);
}
else if (shapes[i] is DiameterShapeBase)
{
Rectangle dstBounds = Rectangle.Empty;
Geometry.CalcBoundingRectangle(GetPointPositions(Owner, ptPositions.Items.Values), out dstBounds);
anchorPointIds = GetDiameterShapeAnchorPoints((DiameterShapeBase)shapes[i], dstBounds);
}
else if (shapes[i] is ImageBasedShape)
{
anchorPointIds = GetImageAnchorPoints((ImageBasedShape)shapes[i]);
}
else if (shapes[i] is IsoscelesTriangleBase)
{
anchorPointIds = GetIsoscelesTriangleAnchorPoints((IsoscelesTriangleBase)shapes[i]);
}
else if (shapes[i] is RegularPolygoneBase)
{
Rectangle dstBounds = Rectangle.Empty;
Geometry.CalcBoundingRectangle(GetPointPositions(Owner, ptPositions.Items.Values), out dstBounds);
anchorPointIds = GetRegularPolygonAnchorPoints((RegularPolygoneBase)shapes[i], dstBounds);
}
else
{
anchorPointIds = GetShapeAnchorPoints(shapes[i]);
}
// Now restore positions of the anchor points
foreach (ControlPointId id in anchorPointIds)
{
// Skip connected glue points
if (gluePointState == GluePointState.SomeConnected)
{
if (shapes[i].HasControlPointCapability(id, ControlPointCapabilities.Glue) &&
shapes[i].IsConnected(id, null) != ControlPointId.None)
{
continue;
}
}
RelativePosition relPos;
if (ptPositions.Items.TryGetValue(id, out relPos))
{
Debug.Assert(relPos != RelativePosition.Empty);
Point p = Owner.CalculateAbsolutePosition(relPos);
Debug.Assert(Geometry.IsValid(p));
if (!shapes[i].MoveControlPointTo(id, p.X, p.Y, ResizeModifiers.None))
{
result = false;
}
}
else
{
Debug.Fail("Unable to restore controlpoint's position: Control point not found in list of original positions");
}
}
}
boundingRectangleLoose = boundingRectangleTight = Geometry.InvalidRectangle;
} finally {
ResumeUpdate();
}
return(result);
}