public void SetUp()
{
m_oGraph = new Graph();
Rectangle oRectangle = new Rectangle(21, 34, 56, 78);
m_oLayoutContext = new LayoutContext(oRectangle);
m_oLayOutGraphAsyncArguments =
new LayOutGraphAsyncArguments(m_oGraph, m_oLayoutContext);
}
LayOutGraphOnBackgroundWorker
(
BackgroundWorker oBackgroundWorker,
DoWorkEventArgs oDoWorkEventArgs
)
{
Debug.Assert(oBackgroundWorker != null);
Debug.Assert(oDoWorkEventArgs != null);
AssertValid();
Debug.Assert(oDoWorkEventArgs.Argument is LayOutGraphAsyncArguments);
LayOutGraphAsyncArguments oLayOutGraphAsyncArguments =
(LayOutGraphAsyncArguments)oDoWorkEventArgs.Argument;
IGraph oGraph = oLayOutGraphAsyncArguments.Graph;
LayoutContext oLayoutContext =
oLayOutGraphAsyncArguments.LayoutContext;
LayoutContext oAdjustedLayoutContext;
if (!GetAdjustedLayoutContext(oGraph, oLayoutContext,
out oAdjustedLayoutContext))
{
return;
}
// Honor the optional LayOutTheseVerticesOnly key on the graph.
ICollection <IVertex> oVerticesToLayOut = GetVerticesToLayOut(oGraph);
Int32 iVerticesToLayOut = oVerticesToLayOut.Count;
if (iVerticesToLayOut == 0)
{
return;
}
// Binning is supported only if the entire graph is being laid out.
if (this.SupportsBinning && m_bUseBinning &&
iVerticesToLayOut == oGraph.Vertices.Count)
{
// Lay out the graph's smaller components in bins.
GraphBinner oGraphBinner = new GraphBinner();
oGraphBinner.MaximumVerticesPerBin = m_iMaximumVerticesPerBin;
oGraphBinner.BinLength = m_iBinLength;
ICollection <IVertex> oRemainingVertices;
Rectangle oRemainingRectangle;
if (oGraphBinner.LayOutSmallerComponentsInBins(oGraph,
oVerticesToLayOut, oAdjustedLayoutContext,
out oRemainingVertices, out oRemainingRectangle))
{
// The remaining vertices need to be laid out in the remaining
// rectangle.
oVerticesToLayOut = oRemainingVertices;
oAdjustedLayoutContext =
new LayoutContext(oRemainingRectangle);
}
else
{
// There are no remaining vertices, or there is no space
// left.
oVerticesToLayOut = new IVertex[0];
}
}
if (oVerticesToLayOut.Count > 0)
{
// Let the derived class do the work.
if (!LayOutGraphCore(oGraph, oVerticesToLayOut,
oAdjustedLayoutContext, oBackgroundWorker))
{
// LayOutGraphAsyncCancel() was called.
oDoWorkEventArgs.Cancel = true;
return;
}
LayoutMetadataUtil.MarkGraphAsLaidOut(oGraph);
}
}
public void TearDown()
{
m_oLayOutGraphAsyncArguments = null;
m_oGraph = null;
m_oLayoutContext = null;
}
//*************************************************************************
// Constructor: LayOutGraphAsyncArgumentsTest()
//
/// <summary>
/// Initializes a new instance of the
/// <see cref="LayOutGraphAsyncArgumentsTest" /> class.
/// </summary>
//*************************************************************************
public LayOutGraphAsyncArgumentsTest()
{
m_oLayOutGraphAsyncArguments = null;
m_oGraph = null;
m_oLayoutContext = null;
}
