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); }
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); } } }