TransformGroupRectangles
(
IGraph graph,
LayoutContext originalLayoutContext,
LayoutContext newLayoutContext
)
{
Debug.Assert(graph != null);
Debug.Assert(originalLayoutContext != null);
Debug.Assert(newLayoutContext != null);
GroupLayoutDrawingInfo oGroupLayoutDrawingInfo;
if (TryGetGroupLayoutDrawingInfo(graph, out oGroupLayoutDrawingInfo))
{
// Replace the metadata value's group rectangles with a transformed
// set of group rectangles.
Matrix oTransformationMatrix =
LayoutUtil.GetRectangleTransformation(
originalLayoutContext.GraphRectangle,
newLayoutContext.GraphRectangle
);
foreach (GroupInfo oGroupInfo in
oGroupLayoutDrawingInfo.GroupsToDraw)
{
oGroupInfo.Rectangle = LayoutUtil.TransformRectangle(
oGroupInfo.Rectangle, oTransformationMatrix);
}
}
}