protected virtual void OnRowHeightChanged(JetListViewNode node, int oldHeight, int newHeight)
{
if (RowHeightChanged != null)
{
RowHeightChanged(this, new RowHeightChangedEventArgs(node, oldHeight, newHeight));
}
}
protected internal override Rectangle GetFocusRect(JetListViewNode itemNode, Rectangle rc)
{
Rectangle rcFocus;
int curX = -_scrollOffset + _borderSize;
int selWidth = GetTotalColumnWidth();
bool inIndent = false;
ColumnWidthEnumerator fixedColEnumerator = new ColumnWidthEnumerator(_columnCollection, itemNode);
while (fixedColEnumerator.MoveNext())
{
if (IsValueColumn(fixedColEnumerator.Current))
{
break;
}
if (fixedColEnumerator.Current.IsIndentColumn())
{
inIndent = true;
}
curX += fixedColEnumerator.CurrentWidth;
if (!inIndent || !fixedColEnumerator.Current.FixedSize)
{
selWidth -= fixedColEnumerator.CurrentWidth;
}
}
rcFocus = new Rectangle(curX, rc.Top, selWidth, rc.Height);
return(rcFocus);
}
private void RemoveNode(JetListViewNode parentNode, JetListViewNode childNode)
{
ClearChildren(childNode);
CollapseState oldCollapseState = parentNode.CollapseState;
OnNodeRemoving(childNode);
if (IsNodeVisible(childNode))
{
OnVisibleNodeRemoving(childNode);
}
parentNode.RemoveChild(childNode);
_nodeMap.Remove(childNode.Data, parentNode);
OnNodeRemoved(childNode);
if (IsNodeVisible(childNode))
{
OnVisibleNodeRemoved(childNode);
}
if (parentNode != _rootNode && IsNodeVisible(parentNode) && oldCollapseState != parentNode.CollapseState)
{
OnNodeChanged(parentNode);
}
}
public JetListViewNode GetLastChild(bool needExpanded)
{
if (ChildCount == 0)
{
return(null);
}
JetListViewNode node = null;
for (int i = _children.Count - 1; i >= 0; i--)
{
if (((JetListViewNode)_children [i]).FiltersAccept)
{
node = (JetListViewNode)_children [i];
break;
}
}
if (node != null && node.ChildCount > 0)
{
if (needExpanded && node.CollapseState == CollapseState.Collapsed)
{
return(node);
}
JetListViewNode nodeChild = node.GetLastChild(needExpanded);
if (nodeChild != null)
{
return(nodeChild);
}
}
return(node);
}
public void Remove(object item, JetListViewNode parentNode)
{
lock (this)
{
_lastUpdatedNode = null;
if (parentNode == null)
{
parentNode = _rootNode;
}
JetListViewNode[] childNodes = _nodeMap.NodesFromItem(item);
if (childNodes.Length == 0)
{
throw new ArgumentException("Trying to remove item which was not added", "item");
}
int removedNodes = 0;
for (int i = 0; i < childNodes.Length; i++)
{
if (childNodes [i].Parent == parentNode)
{
RemoveNode(parentNode, childNodes [i]);
removedNodes++;
}
}
if (removedNodes == 0)
{
throw new ArgumentException("Trying to remove item from wrong parent");
}
}
}
public IVisibleNodeEnumerator GetDirectionalEnumerator(IViewNode startNode, MoveDirection direction)
{
Guard.NullArgument(startNode, "startNode");
JetListViewNode startLvNode = startNode as JetListViewNode;
if (startLvNode != null)
{
return(new GroupedItemEnumerator(this,
_nodeCollection.GetDirectionalEnumerator(startLvNode, direction), direction,
(direction == MoveDirection.Down)));
}
GroupHeaderNode startHeaderNode = startNode as GroupHeaderNode;
Debug.Assert(startHeaderNode.TopNode != null);
if (startHeaderNode.TopNode == null)
{
return(new GroupedItemEnumerator(this, new EmptyEnumerator(), direction, false));
}
GroupedItemEnumerator enumerator = new GroupedItemEnumerator(this,
_nodeCollection.GetDirectionalEnumerator(startHeaderNode.TopNode, direction),
direction, false);
if (direction == MoveDirection.Up)
{
// move from first node of current group to last node of previous group
enumerator.MoveNext();
}
return(enumerator);
}
protected internal override Rectangle GetFocusRect(JetListViewNode itemNode, Rectangle rc)
{
MultiLineColumnScheme scheme = _columnSchemeProvider.GetColumnScheme(itemNode.Data);
int indent = GetRowIndent(itemNode, scheme);
return(new Rectangle(_borderSize + indent, rc.Top, _visibleWidth - _borderSize - indent, rc.Height));
}
private void ProcessViewNodeRemoving(JetListViewNode node)
{
if (node.Level == 0)
{
string nodeGroup = _groupProvider.GetGroupName(node.Data);
GroupHeaderNode nodeGroupHeader = (GroupHeaderNode)_groupMap [nodeGroup];
if (nodeGroupHeader != null)
{
bool haveSameGroup = false;
int index = _nodeCollection.Root.IndexOf(node);
if (index > 0)
{
JetListViewNode prevNode = _nodeCollection.Root.Nodes [index - 1];
if (_groupProvider.GetGroupName(prevNode.Data) == nodeGroup)
{
haveSameGroup = true;
}
}
if (!haveSameGroup && index < _nodeCollection.Root.ChildCount - 1)
{
JetListViewNode nextNode = _nodeCollection.Root.Nodes [index + 1];
if (_groupProvider.GetGroupName(nextNode.Data) == nodeGroup)
{
haveSameGroup = true;
}
}
if (!haveSameGroup)
{
RemoveGroup(nodeGroupHeader);
}
}
}
}
public bool MoveNext()
{
while (true)
{
if (!MoveNextStep())
{
return(false);
}
if (!_skipFiltered)
{
return(true);
}
JetListViewNode curNode = (JetListViewNode)Current;
if (_minLevel != -1 && curNode.Level < _minLevel)
{
return(false);
}
if (curNode.FiltersAccept)
{
return(true);
}
}
}
private void DrawNodeRow(Graphics g, Rectangle rectangle, JetListViewNode itemNode, ref int curY)
{
int itemBaseHeight = _rowRenderer.GetRowHeight(itemNode);
int itemHeight = itemBaseHeight;
if (_rowDelimiters)
{
itemHeight++;
}
if (curY + itemHeight >= rectangle.Top)
{
Rectangle rcRow = new Rectangle(rectangle.Left, curY, rectangle.Width, itemBaseHeight);
if (_rowRenderer != null)
{
_rowRenderer.DrawRow(g, rcRow, itemNode, GetRowState(itemNode));
}
if (_rowDelimiters)
{
g.DrawLine(SystemPens.Control, rectangle.Left, curY + itemBaseHeight,
rectangle.Width, curY + itemBaseHeight);
}
// Draw an insertion mark if the current row is the insertion drop target (for insertion either above or below)
if ((itemNode == _dropTargetRow) && ((_dropTargetRenderMode & DropTargetRenderMode.InsertAny) != 0))
{
DrawInsertMark(g, rcRow);
}
}
curY += itemHeight;
}
public int Compare(object x, object y)
{
JetListViewNode node1 = (JetListViewNode)x;
JetListViewNode node2 = (JetListViewNode)y;
return(_baseComparer.Compare(node1.Data, node2.Data));
}
public bool IncrementalSearchNext(string text, MoveDirection dir)
{
JetListViewNode curNode = _selection.ActiveNode;
IEnumerator enumerator = (dir == MoveDirection.Down)
? _nodeCollection.EnumerateNodesForward(curNode)
: _nodeCollection.EnumerateNodesBackward(curNode);
enumerator.MoveNext();
if (SearchEnumerator(text, enumerator, null))
{
return(true);
}
JetListViewNode startNode = (dir == MoveDirection.Down)
? _nodeCollection.Nodes [0]
: _nodeCollection.LastNode;
if (curNode == startNode)
{
return(false);
}
enumerator = _nodeCollection.GetDirectionalEnumerator(startNode, dir);
return(SearchEnumerator(text, enumerator, curNode));
}
internal void AddChild(JetListViewNode itemNode)
{
itemNode._parent = this;
if (_children == null)
{
_children = new ArrayList();
}
IComparer comparer = _owner.GetNodeComparer(this);
lock ( _children )
{
if (comparer == null)
{
_children.Add(itemNode);
}
else
{
int index = _children.BinarySearch(itemNode, comparer);
if (index < 0)
{
index = ~index;
}
_children.Insert(index, itemNode);
}
}
_flags &= 0xfb;
if (!itemNode.FiltersAccept)
{
_unacceptedChildCount++;
}
}
protected internal void OnExpandChanging(JetListViewNode node)
{
if (NodeExpandChanging != null)
{
NodeExpandChanging(this, new JetListViewNodeEventArgs(node));
}
}
public MoveDirection GetMoveDirection(IViewNode startNode, IViewNode endNode)
{
JetListViewNode startLvNode = startNode as JetListViewNode;
if (startLvNode == null)
{
GroupHeaderNode startHeaderNode = (GroupHeaderNode)startNode;
startLvNode = startHeaderNode.TopNode;
}
JetListViewNode endLvNode = endNode as JetListViewNode;
if (endLvNode == null)
{
GroupHeaderNode endHeaderNode = (GroupHeaderNode)endNode;
endLvNode = endHeaderNode.TopNode;
}
int orderDiff = _nodeCollection.CompareVisibleOrder(startLvNode, endLvNode);
if (orderDiff == 0 && startNode is GroupHeaderNode && !(endNode is GroupHeaderNode))
{
return(MoveDirection.Down);
}
return((orderDiff < 0)
? MoveDirection.Down
: MoveDirection.Up);
}
private void OnNodeAdded(JetListViewNode node)
{
if (NodeAdded != null)
{
NodeAdded(this, new JetListViewNodeEventArgs(node));
}
}
private void OnNodeRemoved(JetListViewNode childNode)
{
if (NodeRemoved != null)
{
NodeRemoved(this, new JetListViewNodeEventArgs(childNode));
}
}
internal int CompareVisibleOrder(JetListViewNode lhs, JetListViewNode rhs)
{
JetListViewNode origLhs = lhs;
JetListViewNode origRhs = rhs;
if (lhs == rhs)
{
return(0);
}
while (lhs.Level > rhs.Level)
{
lhs = lhs.Parent;
}
while (rhs.Level > lhs.Level)
{
rhs = rhs.Parent;
}
while (lhs.Parent != rhs.Parent)
{
lhs = lhs.Parent;
rhs = rhs.Parent;
}
if (lhs == rhs)
{
return(origLhs.Level - origRhs.Level);
}
int lhsIndex = lhs.Parent.IndexOf(lhs);
int rhsIndex = rhs.Parent.IndexOf(rhs);
return(lhsIndex - rhsIndex);
}
public virtual string GetToolTip(JetListViewNode node, Rectangle rc, ref bool needPlace)
{
string toolTip = null;
if (_itemToolTipCallback != null)
{
toolTip = _itemToolTipCallback(node.Data);
}
if (OwnerControl != null && OwnerControl.AutoToolTips && GetTextWidth(node.Data, rc.Width) > rc.Width)
{
if (toolTip == null || toolTip.Length == 0)
{
toolTip = GetItemText(node.Data, rc.Width);
}
else
{
toolTip = GetItemText(node.Data, rc.Width) + " (" + toolTip + ")";
}
}
else
{
needPlace = false;
}
return(toolTip);
}
public bool IncrementalSearch(string text)
{
if (_nodeCollection.Nodes.Count == 0)
{
return(false);
}
JetListViewNode startNode = _selection.ActiveNode;
if (startNode == null)
{
startNode = _nodeCollection.Nodes [0];
}
lock ( _nodeCollection )
{
if (SearchEnumerator(text, _nodeCollection.EnumerateVisibleNodesForward(startNode), null))
{
return(true);
}
if (startNode != _nodeCollection.Nodes [0])
{
return(SearchEnumerator(text,
_nodeCollection.EnumerateVisibleNodesForward(_nodeCollection.Nodes [0]), startNode));
}
}
return(false);
}
public override void DrawRow(Graphics g, Rectangle rc, JetListViewNode itemNode, RowState state)
{
MultiLineColumnScheme scheme = _columnSchemeProvider.GetColumnScheme(itemNode.Data);
int indent = GetRowIndent(itemNode, scheme);
Rectangle rcFocus = GetFocusRect(itemNode, rc);
bool focusRow = false, dropTargetRow = false;
if (((state & RowState.Focused) != 0 &&
_searchHighlightText != null && _searchHighlightText.Length > 0))
{
state |= RowState.IncSearchMatch;
}
if (_fullRowSelect)
{
FillFullRowSelectBar(g, rcFocus, state);
}
ClearRowSelectState(ref state, ref focusRow, ref dropTargetRow);
foreach (MultiLineColumnSetting setting in scheme.ColumnSettings)
{
if (_fullRowSelect)
{
if ((state & RowState.IncSearchMatch) != 0 && (state & RowState.ActiveSelected) != 0)
{
state &= ~RowState.ActiveSelected;
state |= RowState.InactiveSelected;
}
}
_lastTextColor = setting.TextColor;
_lastItemColorCallback = setting.Column.ForeColorCallback;
_lastItemFontCallback = setting.Column.FontCallback;
if ((state & (RowState.ActiveSelected | RowState.InactiveSelected)) == 0)
{
setting.Column.ForeColorCallback = new ItemColorCallback(GetColumnForeColor);
}
HorizontalAlignment lastAlignment = setting.Column.Alignment;
int oldMargin = setting.Column.RightMargin;
setting.Column.Alignment = setting.TextAlign;
if (setting.TextAlign == HorizontalAlignment.Right)
{
setting.Column.RightMargin = 5;
}
Rectangle rcCol = GetRectangleFromSetting(scheme, setting, indent);
rcCol.Offset(_borderSize, rc.Top);
DrawColumnWithHighlight(g, rcCol, itemNode, setting.Column, state);
setting.Column.ForeColorCallback = _lastItemColorCallback;
setting.Column.Alignment = lastAlignment;
setting.Column.RightMargin = oldMargin;
}
DrawRowSelectRect(g, rcFocus, dropTargetRow, focusRow);
}
private void RecalcColumnWidth(ProcessSizeToContentColumnDelegate callback, JetListViewNode paramNode)
{
if (_sizeToContentColumnCount > 0)
{
int fixedWidth = 0;
JetListViewColumn indentCol = null;
for (int i = 0; i < _columnCollection.Count; i++)
{
JetListViewColumn col = _columnCollection [i];
if (col.IsIndentColumn())
{
indentCol = col;
}
if (col.FixedSize && indentCol != null)
{
fixedWidth += col.Width;
}
if (col.SizeToContent)
{
callback(col, indentCol, fixedWidth, paramNode);
}
if (!col.FixedSize && !col.IsIndentColumn())
{
indentCol = null;
fixedWidth = 0;
}
}
UpdateScrollRange();
}
}
private void RecalcOnNodeAdded(JetListViewColumn col, JetListViewColumn indentCol, int fixedWidth,
JetListViewNode paramNode)
{
int desiredWidth = GetDesiredWidthIndented(col, indentCol, paramNode, fixedWidth);
col.Width = Math.Max(col.Width, desiredWidth);
}
protected internal override int GetWidthDelta(JetListViewNode node)
{
if (GetItemCheckState(node.Data) == CheckBoxState.Hidden)
{
return(-Width);
}
return(base.GetWidthDelta(node));
}
private void SortRecursive(JetListViewNode node)
{
node.SortChildren(GetNodeComparer(node));
for (int i = 0; i < node.ChildCount; i++)
{
SortRecursive(node.GetChildNode(i));
}
}
public JetListViewDragEventArgs(DragEventArgs e, JetListViewNode dropTargetNode, DropTargetRenderMode dropTargetRenderMode, int localY, int rowHeight)
: base(e.Data, e.KeyState, e.X, e.Y, e.AllowedEffect, e.Effect)
{
_dropTargetNode = dropTargetNode;
_dropTargetRenderMode = dropTargetRenderMode;
_localY = localY;
_rowHeight = rowHeight;
}
public int IndexOf(JetListViewNode itemNode)
{
if (_children == null)
{
return(-1);
}
return(_children.IndexOf(itemNode));
}
public override bool HandleDoubleClick(JetListViewNode node)
{
if (node.HasChildren)
{
node.Expanded = !node.Expanded;
return(true);
}
return(false);
}
public void SetItemComparer(object parentItem, IComparer comparer)
{
JetListViewNode node = ParentNodeFromItem(parentItem);
lock ( _comparerMap )
{
_comparerMap [node] = new NodeComparer(comparer);
}
}
public bool HandleNodeKeyDown(JetListViewNode viewNode, KeyEventArgs e)
{
if (e.KeyCode == Keys.Subtract || e.KeyCode == Keys.Left)
{
_groupCollection.GetNodeGroupHeader(viewNode).Expanded = false;
return(true);
}
return(false);
}
