protected override void onDraw(Cairo.Context gr)
{
gr.Save();
Rectangle rBack = new Rectangle(Slot.Size);
Background.SetAsSource(gr, rBack);
CairoHelpers.CairoRectangle(gr, rBack, CornerRadius);
gr.Fill();
if (ClipToClientRect)
{
//clip to client zone
CairoHelpers.CairoRectangle(gr, ClientRectangle, CornerRadius);
gr.Clip();
}
childrenRWLock.EnterReadLock();
foreach (GraphicObject g in Children)
{
g.Paint(ref gr);
}
childrenRWLock.ExitReadLock();
if (!IsDropTarget)
{
gr.Restore();
return;
}
DockWindow dw = IFace.DragAndDropOperation.DragSource as DockWindow;
if (dw == null)
{
return;
}
if (!dw.IsDocked)
{
Rectangle cb = ClientRectangle;
double minDim = Math.Min(cb.Width, cb.Height);
Rectangle r = rIn;
if (Children.Count <= 1 || dw.DockingPosition.GetOrientation() == Orientation)
{
r = cb;
}
switch (dw.DockingPosition)
{
case Alignment.Top:
gr.Rectangle(r.Left, r.Top, r.Width, r.Height * dockThresh);
break;
case Alignment.Bottom:
gr.Rectangle(r.Left, r.Bottom - r.Height * dockThresh, r.Width, r.Height * dockThresh);
break;
case Alignment.Left:
gr.Rectangle(r.Left, r.Top, r.Width * dockThresh, r.Height);
break;
case Alignment.Right:
gr.Rectangle(r.Right - r.Width * dockThresh, r.Top, r.Width * dockThresh, r.Height);
break;
case Alignment.Center:
r.Inflate((int)Math.Ceiling(Math.Min(r.Width, r.Height) * -0.05));
gr.Rectangle(r);
break;
}
gr.LineWidth = 1;
gr.SetSourceRGBA(0.4, 0.4, 0.9, 0.4);
gr.FillPreserve();
gr.SetSourceRGBA(0.9, 0.9, 1.0, 0.8);
gr.Stroke();
}
gr.Restore();
}
public override void onMouseMove(object sender, MouseMoveEventArgs e)
{
if (IsDropTarget)
{
DockWindow dw = IFace.DragAndDropOperation.DragSource as DockWindow;
if (dw.IsDocked)
{
base.onMouseMove(sender, e);
return;
}
Alignment curDockPos = dw.DockingPosition;
dw.DockingPosition = Alignment.Undefined;
Rectangle cb = ClientRectangle;
Point lm = ScreenPointToLocal(e.Position);
if (Children.Count == 0)
{
Rectangle r = cb;
r.Inflate(r.Width / -5, r.Height / -5);
if (r.ContainsOrIsEqual(lm))
{
dw.DockingPosition = Alignment.Center;
}
}
else
{
rIn = cb;
if (Orientation == Orientation.Horizontal || Children.Count == 1)
{
if (lm.Y > cb.Top + cb.Height / 3 && lm.Y < cb.Bottom - cb.Height / 3)
{
if (lm.X < cb.Left + cb.Width / 3)
{
dw.DockingPosition = Alignment.Left;
}
else if (lm.X > cb.Right - cb.Width / 3)
{
dw.DockingPosition = Alignment.Right;
}
}
else
{
getFocusedChild(lm);
if (focusedChild != null)
{
if (lm.Y < rIn.Top + rIn.Height / 3)
{
dw.DockingPosition = Alignment.Top;
}
else if (lm.Y > rIn.Bottom - rIn.Height / 3)
{
dw.DockingPosition = Alignment.Bottom;
}
}
}
}
if (Orientation == Orientation.Vertical || Children.Count == 1)
{
if (lm.X > cb.Left + cb.Width / 3 && lm.X < cb.Right - cb.Width / 3)
{
if (lm.Y < cb.Top + cb.Height / 3)
{
dw.DockingPosition = Alignment.Top;
}
else if (lm.Y > cb.Bottom - cb.Height / 3)
{
dw.DockingPosition = Alignment.Bottom;
}
}
else
{
getFocusedChild(lm);
if (focusedChild != null)
{
if (lm.X < rIn.Left + rIn.Width / 3)
{
dw.DockingPosition = Alignment.Left;
}
else if (lm.X > rIn.Right - rIn.Width / 3)
{
dw.DockingPosition = Alignment.Right;
}
}
}
}
}
if (curDockPos != dw.DockingPosition)
{
RegisterForGraphicUpdate();
}
}
base.onMouseMove(sender, e);
}
