protected Rectangle GetLinksFullBounds(MindMap map)
{
if (map == null)
{
throw new ArgumentNullException();
}
Rectangle result = Rectangle.Empty;
Link[] lines = map.GetLinks(true);
for (int i = 0; i < lines.Length; i++)
{
Link line = lines[i];
if (line.Visible)
{
lines[i].RefreshLayout();
Rectangle rect = line.LayoutData.GetFullBounds();
rect.Inflate(10, 10);
if (i == 0)
{
result = rect;
}
else
{
result = Rectangle.Union(result, rect);
}
}
}
return(result);
}
public Size LayoutMap(MindMap map, MindMapLayoutArgs e)
{
if (map == null)
{
throw new ArgumentNullException();
}
if (map.Root != null)
{
Rectangle bounds = Layout(map.Root, e);
Rectangle linesBounds = GetLinksFullBounds(map);
if (!linesBounds.IsEmpty)
{
bounds = Rectangle.Union(bounds, linesBounds);
}
// page size
var psx = Math.Max(0, (map.PageSize.Width - (bounds.Width + map.Margin.Horizontal)) / 2);
var psy = Math.Max(0, (map.PageSize.Height - (bounds.Height + map.Margin.Vertical)) / 2);
Offset(map.Root, map.Margin.Left - bounds.X + psx, map.Margin.Top - bounds.Y + psy);
// refresh line's layout
Link[] lines = map.GetLinks(true);
for (int i = 0; i < lines.Length; i++)
{
lines[i].RefreshLayout();
}
bounds.Width += map.Margin.Horizontal;
bounds.Height += map.Margin.Vertical;
// page size
bounds.Width = Math.Max(bounds.Width, map.PageSize.Width);
bounds.Height = Math.Max(bounds.Height, map.PageSize.Height);
map.LayoutInitialized = true;
return(bounds.Size);
}
else
{
return(Size.Empty);
}
}