private static Drawing.Size GetSize(IVisio.Page page)
{
var query = new ShapeSheet.Queries.Query();
var col_height = query.AddCell(ShapeSheet.SRCConstants.PageHeight, "PageHeight");
var col_width = query.AddCell(ShapeSheet.SRCConstants.PageWidth, "PageWidth");
var page_surface = new ShapeSheetSurface(page.PageSheet);
var results = query.GetResults <double>(page_surface);
double height = results.Cells[col_height];
double width = results.Cells[col_width];
var s = new Drawing.Size(width, height);
return(s);
}
/// <summary>
/// Returns all the directed,connected pairs of shapes in the page
/// </summary>
/// <param name="page"></param>
/// <param name="flag"></param>
/// <returns></returns>
public static List <ConnectorEdge> GetDirectedEdges(
IVisio.Page page,
ConnectorHandling flag)
{
if (page == null)
{
throw new System.ArgumentNullException(nameof(page));
}
var edges = ConnectionAnalyzer.GetDirectedEdgesRaw(page);
if (flag.DirectionSource == DirectionSource.UseConnectionOrder)
{
return(edges);
}
// At this point we know we need to analyze the connetor arrows to produce the correct results
var connnector_ids = edges.Select(e => e.Connector.ID).ToList();
// Get the arrows for each connector
var src_beginarrow = ShapeSheet.SRCConstants.BeginArrow;
var src_endarrow = ShapeSheet.SRCConstants.EndArrow;
var query = new ShapeSheet.Queries.Query();
var col_beginarrow = query.AddCell(src_beginarrow, "BeginArrow");
var col_endarrow = query.AddCell(src_endarrow, "EndArrow");
var surface = new ShapeSheetSurface(page);
var arrow_table = query.GetResults <int>(surface, connnector_ids);
var directed_edges = new List <ConnectorEdge>();
int connector_index = 0;
foreach (var e in edges)
{
int beginarrow = arrow_table[connector_index].Cells[col_beginarrow];
int endarrow = arrow_table[connector_index].Cells[col_endarrow];
if ((beginarrow < 1) && (endarrow < 1))
{
// the line has no arrows
if (flag.NoArrowsHandling == NoArrowsHandling.TreatEdgeAsBidirectional)
{
// in this case treat the connector as pointing in both directions
var de1 = new ConnectorEdge(e.Connector, e.To, e.From);
var de2 = new ConnectorEdge(e.Connector, e.From, e.To);
directed_edges.Add(de1);
directed_edges.Add(de2);
}
else if (flag.NoArrowsHandling == NoArrowsHandling.ExcludeEdge)
{
// in this case ignore the connector completely
}
else
{
throw new System.ArgumentOutOfRangeException(nameof(flag));
}
}
else
{
// The connector has either a from-arrow, a to-arrow, or both
// handle if it has a from arrow
if (beginarrow > 0)
{
var de = new ConnectorEdge(e.Connector, e.To, e.From);
directed_edges.Add(de);
}
// handle if it has a to arrow
if (endarrow > 0)
{
var de = new ConnectorEdge(e.Connector, e.From, e.To);
directed_edges.Add(de);
}
}
connector_index++;
}
return(directed_edges);
}
