private void OnDockableWorkspaceBeforePageDrag(object sender, PageDragCancelEventArgs e)
{
// Validate the list of names to those that are still present in the dockspace
List <KryptonPage> pages = new List <KryptonPage>();
foreach (KryptonPage page in e.Pages)
{
if (!(page is KryptonStorePage) && (DockableWorkspaceControl.CellForPage(page) != null))
{
pages.Add(page);
}
}
// Only need to start docking dragging if we have some valid pages
if (pages.Count != 0)
{
// Ask the docking manager for a IDragPageNotify implementation to handle the dragging operation
KryptonDockingManager dockingManager = DockingManager;
if (dockingManager != null)
{
dockingManager.DoDragDrop(e.ScreenPoint, e.ElementOffset, e.Control, e.Pages);
}
}
// Always take over docking
e.Cancel = true;
}
/// <summary>
/// Find the docking element that contains the location specific store page for the named page.
/// </summary>
/// <param name="location">Location to be searched.</param>
/// <param name="uniqueName">Unique name of the page to be found.</param>
/// <returns>IDockingElement reference if store page is found; otherwise null.</returns>
public override IDockingElement FindStorePageElement(DockingLocation location, string uniqueName)
{
if (location == DockingLocation.Workspace)
{
KryptonPage page = DockableWorkspaceControl.PageForUniqueName(uniqueName);
if (page is KryptonStorePage)
{
return(this);
}
}
return(null);
}
/// <summary>
/// Find the docking element that contains the named page.
/// </summary>
/// <param name="uniqueName">Unique name of the page.</param>
/// <returns>IDockingElement reference if page is found; otherwise null.</returns>
public override IDockingElement FindPageElement(string uniqueName)
{
KryptonPage page = DockableWorkspaceControl.PageForUniqueName(uniqueName);
if ((page != null) && !(page is KryptonStorePage))
{
return(this);
}
else
{
return(null);
}
}
/// <summary>
/// Find the docking location of the named page.
/// </summary>
/// <param name="uniqueName">Unique name of the page.</param>
/// <returns>Enumeration value indicating docking location.</returns>
public override DockingLocation FindPageLocation(string uniqueName)
{
KryptonPage page = DockableWorkspaceControl.PageForUniqueName(uniqueName);
if ((page != null) && !(page is KryptonStorePage))
{
return(DockingLocation.Workspace);
}
else
{
return(DockingLocation.None);
}
}
/// <summary>
/// Propagates a request for drag targets down the hierarchy of docking elements.
/// </summary>
/// <param name="floatingWindow">Reference to window being dragged.</param>
/// <param name="dragData">Set of pages being dragged.</param>
/// <param name="targets">Collection of drag targets.</param>
public override void PropogateDragTargets(KryptonFloatingWindow floatingWindow,
PageDragEndData dragData,
DragTargetList targets)
{
// Create list of the pages that are allowed to be dropped into this workspace
KryptonPageCollection pages = new KryptonPageCollection();
foreach (KryptonPage page in dragData.Pages)
{
if (page.AreFlagsSet(KryptonPageFlags.DockingAllowWorkspace))
{
pages.Add(page);
}
}
// Do we have any pages left for dragging?
if (pages.Count > 0)
{
DragTargetList workspaceTargets = DockableWorkspaceControl.GenerateDragTargets(new PageDragEndData(this, pages), KryptonPageFlags.DockingAllowWorkspace);
targets.AddRange(workspaceTargets.ToArray());
}
}
