void LayoutWidgets()
{
if (!needsRelayout)
{
return;
}
needsRelayout = false;
// Create the needed notebooks and place the widgets in there
List <DockGroup> tabbedGroups = new List <DockGroup> ();
GetTabbedGroups(layout, tabbedGroups);
for (int n = 0; n < tabbedGroups.Count; n++)
{
DockGroup grp = tabbedGroups [n];
TabStrip ts;
if (n < notebooks.Count)
{
ts = notebooks [n];
}
else
{
ts = new TabStrip(frame);
ts.Show();
notebooks.Add(ts);
ts.Parent = this;
}
grp.UpdateNotebook(ts);
}
// Remove spare tab strips
for (int n = notebooks.Count - 1; n >= tabbedGroups.Count; n--)
{
TabStrip ts = notebooks [n];
notebooks.RemoveAt(n);
ts.Clear();
ts.Unparent();
ts.Destroy();
}
// Add widgets to the container
layout.LayoutWidgets();
NotifySeparatorsChanged();
}
internal void UpdateNotebook(TabStrip ts)
{
Gtk.Widget oldpage = null;
int oldtab = -1;
if (tabFocus != null)
{
oldpage = tabFocus.Item.Widget;
tabFocus = null;
}
else if (boundTabStrip != null)
{
oldpage = boundTabStrip.CurrentPage;
oldtab = boundTabStrip.CurrentTab;
}
ts.Clear();
// Add missing pages
foreach (DockObject ob in VisibleObjects)
{
DockGroupItem it = ob as DockGroupItem;
ts.AddTab(it.Item.Widget, it.Item.Icon, it.Item.Label);
}
boundTabStrip = ts;
if (currentTabPage != -1 && currentTabPage < boundTabStrip.TabCount)
{
boundTabStrip.CurrentTab = currentTabPage;
// Discard the currentTabPage value. Current page is now tracked by the tab strip
currentTabPage = -1;
}
else if (oldpage != null)
{
boundTabStrip.CurrentPage = oldpage;
}
if (boundTabStrip.CurrentTab == -1)
{
if (oldtab != -1)
{
if (oldtab < boundTabStrip.TabCount)
{
boundTabStrip.CurrentTab = oldtab;
}
else
{
boundTabStrip.CurrentTab = boundTabStrip.TabCount - 1;
}
}
else
{
boundTabStrip.CurrentTab = 0;
}
}
if (Frame.CompactGuiLevel == 3 && IsNextToMargin(PositionType.Bottom, true))
{
boundTabStrip.BottomPadding = 3;
}
else
{
boundTabStrip.BottomPadding = 0;
}
}