///<summary>
/// Determines if the block or any of its children has focus.
///</summary>
/// <remarks>
/// Reverse iteration: from deepest block (Focus) ---> root
/// on the way to the root iterator is being compared with "this"
/// </remarks>
///<returns>
/// true if the subtree starting with this block has focus
///</returns>
public bool IsFocusInsideControl(Control toCheck)
{
Control Current = FocusControl;
while (Current != null)
{
if (Current == toCheck) return true;
Current = Current.Parent;
}
return false;
}
public bool SetFocus(Control newFocus)
{
bool result = false;
//using (RedrawAccumulator r = new RedrawAccumulator(this, false))
{
result = SetFocusButDontScroll(newFocus);
if (result)
{
ScrollTo(mFocusControl);
//r.ShouldRedrawAtTheEnd = true;
}
}
return result;
}
protected override void OnCollapseChanged(Control itemChanged)
{
this.DisplayContextHelp();
}
protected override void OnDeactivated(Control control)
{
base.OnDeactivated(control);
RecacheCompletion();
}
void TreeViewNodeControl_CollapseChanged(Control itemChanged)
{
this.CollapseButton.Toggle();
}
protected override void OnDeactivated(Control control)
{
base.OnDeactivated(control);
if (Completion.HostBlock == this)
{
Completion.HideCompletionList();
}
}
private void UnsubscribeItem(Control childControl)
{
childControl.SizeChanged -= Child_SizeChanged;
}
private void Children_ElementReplaced(Control oldControl, Control newControl)
{
UnsubscribeItem(oldControl);
SubscribeItem(newControl);
OnSizeChanged();
}
private void Children_ElementRemoved(Control childControl)
{
UnsubscribeItem(childControl);
OnSizeChanged();
}
private void Children_ElementAdded(Control childControl)
{
SubscribeItem(childControl);
OnSizeChanged();
}
/// <summary>
/// Removes an existing control from this CompositeControl.
/// </summary>
/// <remarks>
/// CompositeControl isn't resized if SuspendLayout == true.
/// </remarks>
/// <param name="newShape">Control to add to this collection.</param>
public void Remove(Control controlToRemove)
{
if (ChildrenCollection != null)
{
ChildrenCollection.Remove(controlToRemove);
controlToRemove.Root = null;
controlToRemove.Parent = null;
}
}
public void Prepend(Control newControl)
{
if (ChildrenCollection != null)
{
ChildrenCollection.Prepend(newControl);
newControl.Parent = this;
newControl.Root = this.Root;
}
}
public void ScrollTo(Control TopLeft)
{
RaiseScrollTo(TopLeft.Bounds);
}
protected void RaiseControlDeactivated(Control control)
{
if (ControlDeactivated != null)
{
ControlDeactivated(control);
}
}
private bool SetFocusButDontScroll(Control newFocus)
{
if (newFocus == null
|| !newFocus.CanGetFocus
|| newFocus == mFocusControl
)
{
return false;
}
if (mFocusControl != null)
{
mFocusControl.OnDeactivate();
}
mFocusControl = newFocus;
mFocusControl.OnActivate();
DefaultKeyHandler = mFocusControl;
return true;
}