public override bool OnDockRequest(int x, int y, ref DockRequest request)
{
bool mayDock = false;
/* we get (x,y) in our allocation coordinates system */
/* Get dock size. */
Gdk.Rectangle alloc = Allocation;
int bw = (int)BorderWidth;
/* Get coordinates relative to our allocation area. */
int relX = x - alloc.X;
int relY = y - alloc.Y;
/* Check if coordinates are in GdlDock widget. */
if (relX > 0 && relX < alloc.Width &&
relY > 0 && relY < alloc.Height)
{
/* It's inside our area. */
mayDock = true;
/* Set docking indicator rectangle to the Dock size. */
request.X = alloc.X + bw;
request.Y = alloc.Y + bw;
request.Width = alloc.Width - 2 * bw;
request.Height = alloc.Height - 2 * bw;
/* If Dock has no root item yet, set the dock
* itself as possible target. */
if (root == null)
{
request.Position = DockPlacement.Top;
request.Target = this;
}
else
{
request.Target = root;
/* See if it's in the BorderWidth band. */
if (relX < bw)
{
request.Position = DockPlacement.Left;
request.Width = (int)(request.Width * SplitRatio);
}
else if (relX > alloc.Width - bw)
{
request.Position = DockPlacement.Right;
request.X += (int)(request.Width * (1 - SplitRatio));
request.Width = (int)(request.Width * SplitRatio);
}
else if (relY < bw)
{
request.Position = DockPlacement.Top;
request.Height = (int)(request.Height * SplitRatio);
}
else if (relY > alloc.Height - bw)
{
request.Position = DockPlacement.Bottom;
request.Y += (int)(request.Height * (1 - SplitRatio));
request.Height = (int)(request.Height * SplitRatio);
}
else
{
/* Otherwise try our children. */
/* give them allocation coordinates
* (we are a NoWindow widget) */
mayDock = root.OnDockRequest(x, y, ref request);
}
}
}
return(mayDock);
}
