private void OnDockableNavigatorBeforePageDrag(object sender, PageDragCancelEventArgs e)
{
// Validate the list of names to those that are still present in the navigator
List <KryptonPage> pages = new List <KryptonPage>();
foreach (KryptonPage page in e.Pages)
{
if (!(page is KryptonStorePage) && DockableNavigatorControl.Pages.Contains(page))
{
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;
}
private void OnFloatspaceBeforePageDrag(object sender, PageDragCancelEventArgs e)
{
// Validate the list of names to those that are still present in the floatspace
List <KryptonPage> pages = new List <KryptonPage>();
foreach (KryptonPage page in e.Pages)
{
if (!(page is KryptonStorePage) && (FloatspaceControl.CellForPage(page) != null))
{
pages.Add(page);
}
}
// Only need to start docking dragging if we have some valid pages
if (pages.Count != 0)
{
KryptonDockingManager dockingManager = DockingManager;
if (dockingManager != null)
{
// If there is just a single visible cell
if (FloatspaceControl.CellVisibleCount == 1)
{
// And that visible cell has all the pages being dragged
KryptonWorkspaceCell cell = FloatspaceControl.FirstVisibleCell();
if (cell.Pages.VisibleCount == pages.Count)
{
// Get the owning floating window element
KryptonDockingFloatingWindow window = GetParentType(typeof(KryptonDockingFloatingWindow)) as KryptonDockingFloatingWindow;
if (window != null)
{
// Drag the entire floating window
dockingManager.DoDragDrop(e.ScreenPoint, e.ElementOffset, e.Control, window);
// Always take over docking
e.Cancel = true;
return;
}
}
}
// Add a placeholder for the cell that contains the dragged page, so the cell is not removed during dragging
KryptonWorkspaceCell firstCell = FloatspaceControl.CellForPage(e.Pages[0]);
if (firstCell != null)
{
firstCell.Pages.Add(new KryptonStorePage("TemporaryPage", "Floating"));
}
// Ask the docking manager for a IDragPageNotify implementation to handle the dragging operation
dockingManager.DoDragDrop(e.ScreenPoint, e.ElementOffset, e.Control, e.Pages);
}
}
// Always take over docking
e.Cancel = true;
}
private void PageDragStart(Point pt)
{
if (DragPageNotify != null)
{
// Create a page that will be dragged
_dragPage = new KryptonPage();
_dragPage.Text = _dragNode.Text;
_dragPage.TextTitle = _dragNode.Text + " Title";
_dragPage.TextDescription = _dragNode.Text + " Description";
_dragPage.ImageSmall = ImageList.Images[int.Parse((string)_dragNode.Tag)];
_dragPage.Tag = _dragNode.Tag;
// Create a rich text box with some sample text inside
KryptonRichTextBox rtb = new KryptonRichTextBox();
rtb.Text = "This page (" + _dragPage.Text + ") contains a rich text box control as example content.";
rtb.Dock = DockStyle.Fill;
rtb.StateCommon.Border.Draw = InheritBool.False;
// Add rich text box as the contents of the page
_dragPage.Padding = new Padding(5);
_dragPage.Controls.Add(rtb);
// Give the notify interface a chance to reject the attempt to drag
PageDragCancelEventArgs de = new PageDragCancelEventArgs(PointToScreen(pt), Point.Empty, this, new KryptonPage[] { _dragPage });
DragPageNotify.PageDragStart(this, null, de);
if (de.Cancel)
{
// No longer need the temporary drag page
_dragPage.Dispose();
_dragPage = null;
}
else
{
_dragging = true;
Capture = true;
}
}
}
private void OnDockableWorkspaceBeforePageDrag(object sender, PageDragCancelEventArgs e)
{
// Validate the list of names to those that are still present in the dockspace
var pages = new List <KryptonPage>();
foreach (KryptonPage page in e.Pages)
{
if (page is not 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;
dockingManager?.DoDragDrop(e.ScreenPoint, e.ElementOffset, e.Control, e.Pages);
}
// Always take over docking
e.Cancel = true;
}
/// <summary>
/// Initialize a new instance of the CellDragCancelEventArgs class.
/// </summary>
/// <param name="e">Event to upgrade to this event.</param>
/// <param name="cell">Workspace cell associated with pages.</param>
public CellDragCancelEventArgs(PageDragCancelEventArgs e,
KryptonWorkspaceCell cell)
: base(e.ScreenPoint, e.ElementOffset, e.Control, e.Pages)
{
Cell = cell;
}
/// <summary>
/// Occurs when a page drag is about to begin and allows it to be cancelled.
/// </summary>
/// <param name="sender">Source of the page drag; should never be null.</param>
/// <param name="navigator">Navigator instance associated with source; can be null.</param>
/// <param name="e">Event arguments indicating list of pages being dragged.</param>
public void PageDragStart(object sender, KryptonNavigator navigator, PageDragCancelEventArgs e)
{
_workspace.InternalPageDragStart(sender, navigator, e);
}