private void RemoveSlice(Slice gonner, int index)
{
gonner.AboutToDiscard();
gonner.SplitCont.SplitterMoved -= new SplitterEventHandler(slice_SplitterMoved);
Controls.RemoveAt(index);
// Reset CurrentSlice, if appropriate.
if (gonner == m_currentSlice)
{
Slice newCurrent = null;
if (Controls.Count > index)
{
// Get the one at the same index (next one after the one being removed).
newCurrent = Controls[index] as Slice;
}
else if (Controls.Count > 0 && Controls.Count > index - 1)
{
// Get the one before index.
newCurrent = Controls[index - 1] as Slice;
}
if (newCurrent != null)
{
CurrentSlice = newCurrent;
}
else
{
m_currentSlice = null;
gonner.SetCurrentState(false);
}
}
// Since "gonner's" SliceTreeNode still is referenced by m_tooltip,
// (if it has one at all, that is),
// we have to also remove with ToolTip for gonner,
// Since the dumb MS ToolTip class can't just remove one,
// we have to remove them all and re-add the remaining ones
// in order to have it really turn loose of the SliceTreeNode.
// But, only do all of that, if it actually has a ToolTip.
bool gonnerHasToolTip = (gonner.ToolTip != null);
if (gonnerHasToolTip)
m_tooltip.RemoveAll();
gonner.Dispose();
// Now, we need to re-add all of the surviving tooltips.
if (gonnerHasToolTip)
{
foreach (Slice keeper in Controls)
SetToolTip(keeper);
}
ResetTabIndices(index);
}