private void RemoveItemsRequested(object sender, RemoveItemsRequestedEventArgs e)
{
if (m_patternModel.Root.IsLeaf)
return;
SelectionHelper sel = SelectionHelper.Create(m_view);
ComplexConcPatternNode parent = null;
int index = -1;
if (sel.IsRange)
{
ComplexConcPatternNode[] nodes = CurrentNodes;
if (nodes.Length > 0)
{
parent = nodes[0].Parent;
index = GetNodeIndex(nodes[0]);
foreach (ComplexConcPatternNode node in nodes)
node.Parent.Children.Remove(node);
}
}
else
{
ComplexConcPatternNode n = GetNode(sel, SelectionHelper.SelLimitType.Top);
parent = n.Parent;
index = GetNodeIndex(n);
ITsString tss = sel.GetTss(SelectionHelper.SelLimitType.Anchor);
// if the current ich is at the end of the current string, then we can safely assume
// we are at the end of the current item, so remove it or the next item based on what
// key was pressed, otherwise we are in the middle in which
// case the entire item is selected, or at the beginning, so we remove it or the previous
// item based on what key was pressed
if (sel.IchAnchor == tss.Length)
{
if (e.Forward)
{
if (index == n.Parent.Children.Count - 1)
index = -1;
else
index++;
}
}
else
{
if (!e.Forward)
index--;
}
if (index != -1)
parent.Children.RemoveAt(index);
}
if (parent != null && index != -1)
{
if (!parent.IsLeaf)
{
bool isFirstBdry = parent.Children[0] is ComplexConcWordBdryNode;
if ((parent.Children.Count == 1 && isFirstBdry)
|| (parent.Children.Count > 1 && isFirstBdry && !(parent.Children[1] is ComplexConcMorphNode)))
{
parent.Children.RemoveAt(0);
if (index > 0)
index--;
}
}
if (parent.Children.Count > 1 && parent.Children[parent.Children.Count - 1] is ComplexConcWordBdryNode
&& !(parent.Children[parent.Children.Count - 2] is ComplexConcMorphNode))
{
parent.Children.RemoveAt(parent.Children.Count - 1);
if (index >= parent.Children.Count)
index--;
}
for (int i = parent.Children.Count - 1; i > 0 ; i--)
{
if (parent.Children[i] is ComplexConcWordBdryNode)
{
if (parent.Children[i - 1] is ComplexConcWordBdryNode
|| (!(parent.Children[i - 1] is ComplexConcMorphNode) || (i + 1 < parent.Children.Count && !(parent.Children[i + 1] is ComplexConcMorphNode))))
{
parent.Children.RemoveAt(i);
if (index > i)
index--;
}
}
}
if (!parent.IsLeaf && parent.Children[0] is ComplexConcOrNode)
{
parent.Children.RemoveAt(0);
if (index > 0)
index--;
}
if (!parent.IsLeaf && parent.Children[parent.Children.Count - 1] is ComplexConcOrNode)
{
parent.Children.RemoveAt(parent.Children.Count - 1);
if (index >= parent.Children.Count)
index--;
}
for (int i = parent.Children.Count - 1; i > 0 ; i--)
{
if (parent.Children[i] is ComplexConcOrNode && parent.Children[i - 1] is ComplexConcOrNode)
{
parent.Children.RemoveAt(i);
if (index > i)
index--;
}
}
if (parent.Parent != null && parent.Children.Count == 1)
{
ComplexConcPatternNode p = parent.Parent;
int parentIndex = GetNodeIndex(parent);
p.Children.RemoveAt(parentIndex);
p.Children.Insert(parentIndex, parent.Children[0]);
index = index == 1 ? parentIndex + 1 : parentIndex;
}
else
{
while (parent.Parent != null && parent.IsLeaf)
{
ComplexConcPatternNode p = parent.Parent;
index = GetNodeIndex(parent);
p.Children.Remove(parent);
parent = p;
}
}
if (index >= parent.Children.Count)
ReconstructView(parent, parent.Children.Count - 1, false);
else
ReconstructView(parent, index, true);
}
}
private void RemoveItemsRequested(object sender, RemoveItemsRequestedEventArgs e)
{
SelectionHelper sel = SelectionHelper.Create(m_view);
int cellId = -1;
int cellIndex = -1;
UndoableUnitOfWorkHelper.Do(MEStrings.ksRuleUndoRemove, MEStrings.ksRuleRedoRemove, m_cache.ActionHandlerAccessor, () =>
{
cellId = RemoveItems(sel, e.Forward, out cellIndex);
});
// if the no cell is returned, then do not reconstruct
if (cellId != -1 && cellId != -2)
// if the cell index is -1 that means that we removed the first item in this cell,
// so we move the cursor to the beginning of the first item after the removed items,
// instead of the end of the item before the removed items.
ReconstructView(cellId, cellIndex, cellIndex == -1);
}
