private void UpdatePreview()
{
this.navigatorElement.Preview.Image = null;
if (this.previewBitmap != null)
{
this.previewBitmap.Dispose();
this.previewBitmap = null;
}
DockWindow window = (DockWindow)this.selectedItem.Tag;
Control toPrint = window;
//check whether custom preview image is provided
if (window.DockManager != null && this.Visible)
{
DockWindowSnapshotEventArgs args = new DockWindowSnapshotEventArgs(window);
window.DockManager.OnQuickNavigatorSnapshotNeeded(args);
if (args.SnapShot != null)
{
this.navigatorElement.Preview.Image = args.SnapShot;
return;
}
}
//check for empty size or not yet displayed panel
//if so, try to update the pane, so that we may take a snapshot
if (!toPrint.IsHandleCreated && this.settings.ForceSnapshot)
{
DockTabStrip parentStrip = window.DockTabStrip;
if (parentStrip != null)
{
bool visible = window.Visible;
bool canUpdate = parentStrip.CanUpdateChildIndex;
//prevent SetChildIndex notifications
parentStrip.CanUpdateChildIndex = false;
window.CreateControl();
window.Visible = true;
window.Bounds = parentStrip.TabPanelBounds;
window.Visible = visible;
parentStrip.CanUpdateChildIndex = canUpdate;
}
}
//for some reason bounds are still empty, do nothing
if (toPrint.Width <= 0 || toPrint.Height <= 0)
{
return;
}
//capture the image of the selected pane
Size sz = this.settings.PreviewSize;
this.previewBitmap = new Bitmap(sz.Width, sz.Height, PixelFormat.Format32bppArgb);
toPrint.DrawToBitmap(this.previewBitmap, new Rectangle(Point.Empty, sz));
this.navigatorElement.Preview.Image = this.previewBitmap;
}
internal void UpdateActiveState(bool active)
{
DockTabStrip strip = this.DockTabStrip;
if (strip != null)
{
strip.UpdateActiveWindow(this, active);
}
}
/// <summary>
/// Releases previous redock state.
/// Current implementation simply notifies the referenced <see cref="DockTabStrip">DockTabStrip</see> that it is not a redock target anymore.
/// </summary>
/// <param name="oldState"></param>
protected void RemovePreviousState(RedockState oldState)
{
DockTabStrip oldStrip = oldState.TargetStrip;
if (oldStrip != null)
{
oldStrip.IsRedockTarget = false;
}
}
internal override void CopyTo(DockTabStrip clone)
{
base.CopyTo(clone);
ToolTabStrip toolClone = clone as ToolTabStrip;
if (toolClone != null)
{
toolClone.autoHidePosition = this.autoHidePosition;
}
}
/// <summary>
/// Ensures that the window is currently visible on its hosting <see cref="DockTabStrip">DockTabStrip</see>.
/// </summary>
public void EnsureVisible()
{
DockTabStrip strip = (DockTabStrip)this.TabStrip;
if (strip == null)
{
return;
}
strip.SuspendStripNotifications(false, true);
//strip.SelectTabItem(this.TabStripItem);
strip.ActiveWindow = this;
strip.ResumeStripNotifications(false, true);
strip.UpdateTabSelection(true);
}
internal void RemovePlaceHolders()
{
foreach (DockWindowPlaceholder holder in ControlHelper.GetChildControls <DockWindowPlaceholder>(this.dockContainer, true))
{
DockTabStrip parent = holder.DockTabStrip;
Debug.Assert(parent != null, "Invalid parent for a DockWindowPlaceHolder");
if (parent == null)
{
continue;
}
int index = parent.TabPanels.IndexOf(holder);
ToolWindow actualWindow = new ToolWindow(holder.DockWindowText);
actualWindow.Name = holder.DockWindowName;
holder.Dispose();
parent.TabPanels.Insert(index, actualWindow);
}
}
/// <summary>
/// Adds the menu items, related to the tabbed groups in the DocumentContainer
/// </summary>
/// <param name="window"></param>
/// <param name="items"></param>
private void AddTabbedGroupMenuItems(DockWindow window, List <RadMenuItemBase> items)
{
DockTabStrip strip = window.DockTabStrip;
if (strip == null)
{
return;
}
RadDockLocalizationProvider localizationProvider = RadDockLocalizationProvider.CurrentProvider;
if (strip.TabPanels.Count > 1)
{
items.Add(new RadMenuSeparatorItem());
items.Add(this.CreateMenuItem(window, NewHTabGroup, localizationProvider.GetLocalizedString(RadDockStringId.ContextMenuNewHorizontalTabGroup)));
items.Add(this.CreateMenuItem(window, NewVTabGroup, localizationProvider.GetLocalizedString(RadDockStringId.ContextMenuNewVerticalTabGroup)));
}
bool canMoveBack = this.DockManager.GetPreviousDocumentStrip(window) != null;
bool canMoveForward = this.DockManager.GetNextDocumentStrip(window) != null;
if (canMoveBack || canMoveForward)
{
items.Add(new RadMenuSeparatorItem());
}
if (canMoveBack)
{
items.Add(this.CreateMenuItem(window, MoveToPrevTabGroup, localizationProvider.GetLocalizedString(RadDockStringId.ContextMenuMoveToPreviousTabGroup)));
}
if (canMoveForward)
{
items.Add(this.CreateMenuItem(window, MoveToNextTabGroup, localizationProvider.GetLocalizedString(RadDockStringId.ContextMenuMoveToNextTabGroup)));
}
}
private void Initialize()
{
DockWindow window = this.DockWindow;
if (window == null)
{
return;
}
DockTabStrip tabStrip = (DockTabStrip)window.TabStrip;
//no strip, state could not be saved
if (tabStrip == null)
{
return;
}
Debug.Assert(tabStrip != null, "Not a valid tabstrip");
tabStrip.IsRedockTarget = true;
this.tabIndex = tabStrip.TabPanels.IndexOf(window);
this.sizeInfo = new SplitPanelSizeInfo(tabStrip.SizeInfo);
this.targetStrip = new WeakReference(tabStrip);
}
internal void OnSelectedTabChanged(DockTabStrip strip)
{
this.UpdateCaptions(true);
}
/// <summary>
/// Copies the settings of the current strip to the target one. Currently the SizeInfo member is copied.
/// </summary>
/// <param name="clone"></param>
internal virtual void CopyTo(DockTabStrip clone)
{
clone.SizeInfo.Copy(this.SizeInfo);
}
