public override void PropogateDragTargets(KryptonFloatingWindow floatingWindow,
PageDragEndData dragData,
DragTargetList targets)
{
// Create a list of pages that are allowed to be transferred into a dockspace
List<KryptonPage> transferPages = new List<KryptonPage>();
foreach (KryptonPage page in dragData.Pages)
if (page.AreFlagsSet(KryptonPageFlags.DockingAllowDocked))
transferPages.Add(page);
// Only generate targets if we have some valid pages to transfer
if (transferPages.Count > 0)
{
// Generate targets for the four control edges
Rectangle screenRect = Control.RectangleToScreen(Control.ClientRectangle);
Rectangle[] rectsDraw = SubdivideRectangle(screenRect, 3, int.MaxValue);
Rectangle[] rectsHot = SubdivideRectangle(screenRect, 10, 20);
// Must insert at start of target list as they are higher priority than cell targets
targets.Add(new DragTargetControlEdge(screenRect, rectsHot[0], rectsDraw[0], DragTargetHint.EdgeLeft | DragTargetHint.ExcludeCluster, this, KryptonPageFlags.DockingAllowDocked, true));
targets.Add(new DragTargetControlEdge(screenRect, rectsHot[1], rectsDraw[1], DragTargetHint.EdgeRight | DragTargetHint.ExcludeCluster, this, KryptonPageFlags.DockingAllowDocked, true));
targets.Add(new DragTargetControlEdge(screenRect, rectsHot[2], rectsDraw[2], DragTargetHint.EdgeTop | DragTargetHint.ExcludeCluster, this, KryptonPageFlags.DockingAllowDocked, true));
targets.Add(new DragTargetControlEdge(screenRect, rectsHot[3], rectsDraw[3], DragTargetHint.EdgeBottom | DragTargetHint.ExcludeCluster, this, KryptonPageFlags.DockingAllowDocked, true));
// If we have no designated inner element when we have to decide if we can place edge drag drop targets based on the
// available space at the center of the control after taking into account any edge docked controls already in place.
if (_innerElement == null)
{
// Find the inner rectangle after taking docked controls into account
Size tl = Size.Empty;
Size br = Control.ClientSize;
foreach (Control c in Control.Controls)
if (c.Visible)
{
switch (c.Dock)
{
case DockStyle.Left:
tl.Width = Math.Max(tl.Width, c.Right);
break;
case DockStyle.Right:
br.Width = Math.Min(br.Width, c.Left);
break;
case DockStyle.Top:
tl.Height = Math.Max(tl.Height, c.Bottom);
break;
case DockStyle.Bottom:
br.Height = Math.Min(br.Height, c.Top);
break;
}
}
// If there is inner space available
Rectangle innerRect = new Rectangle(tl.Width, tl.Height, br.Width - tl.Width, br.Height - tl.Height);
if ((innerRect.Width > 0) && (innerRect.Height > 0))
{
Rectangle innerScreenRect = Control.RectangleToScreen(innerRect);
Rectangle[] innerRectsDraw = SubdivideRectangle(innerScreenRect, 3, int.MaxValue);
Rectangle[] innerRectsHot = SubdivideRectangle(innerScreenRect, 10, 20);
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[0], innerRectsDraw[0], DragTargetHint.EdgeLeft, this, KryptonPageFlags.DockingAllowDocked, false));
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[1], innerRectsDraw[1], DragTargetHint.EdgeRight, this, KryptonPageFlags.DockingAllowDocked, false));
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[2], innerRectsDraw[2], DragTargetHint.EdgeTop, this, KryptonPageFlags.DockingAllowDocked, false));
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[3], innerRectsDraw[3], DragTargetHint.EdgeBottom, this, KryptonPageFlags.DockingAllowDocked, false));
}
}
else if (_innerElement is KryptonDockingNavigator)
{
KryptonDockingNavigator dockingNavigator = (KryptonDockingNavigator)_innerElement;
// If there is inner space available
Rectangle innerScreenRect = dockingNavigator.DockableNavigatorControl.RectangleToScreen(dockingNavigator.DockableNavigatorControl.ClientRectangle);
if ((innerScreenRect.Width > 0) && (innerScreenRect.Height > 0))
{
Rectangle[] innerRectsDraw = SubdivideRectangle(innerScreenRect, 3, int.MaxValue);
Rectangle[] innerRectsHot = SubdivideRectangle(innerScreenRect, 10, 20);
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[0], innerRectsDraw[0], DragTargetHint.EdgeLeft, this, KryptonPageFlags.DockingAllowDocked, false));
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[1], innerRectsDraw[1], DragTargetHint.EdgeRight, this, KryptonPageFlags.DockingAllowDocked, false));
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[2], innerRectsDraw[2], DragTargetHint.EdgeTop, this, KryptonPageFlags.DockingAllowDocked, false));
targets.Add(new DragTargetControlEdge(innerScreenRect, innerRectsHot[3], innerRectsDraw[3], DragTargetHint.EdgeBottom, this, KryptonPageFlags.DockingAllowDocked, false));
}
}
// Let base class generate targets for contained elements
base.PropogateDragTargets(floatingWindow, dragData, targets);
}
}
