protected override void OnMouseDown(MouseEventArgs e)
{
this.Focus();
if (e.Button == MouseButtons.Right)
{
Point mousePoint = new Point(e.X, e.Y);
Node clickedNode = CalcHitNode(mousePoint);
if (clickedNode != null)
{
// if multi select the selection is cleard if clicked node is not in selection
if (MultiSelect)
{
if (NodesSelection.Contains(clickedNode) == false)
{
MultiSelectAdd(clickedNode, Control.ModifierKeys);
}
}
FocusedNode = clickedNode;
Invalidate();
}
BeforeShowContextMenu();
}
if (e.Button == MouseButtons.Left)
{
TreeList.HitInfo info = Columns.CalcHitInfo(new Point(e.X, e.Y), HScrollValue());
if ((int)(info.HitType & HitInfo.eHitType.kColumnHeaderResize) > 0)
{
m_resizingColumn = info.Column;
m_resizingColumnScrollOffset = HScrollValue();
return;
}
}
base.OnMouseDown(e);
}
protected override bool GetHitTest(Point point)
{
// if mouse is over node, columns or scrollbar then return true
// which will cause the mouse event to be forwarded to the control
TreeListView tree = Control as TreeListView;
point = tree.PointToClient(point);
Node node = tree.CalcHitNode(point);
if (node != null)
{
return(true);
}
TreeList.HitInfo colinfo = tree.CalcColumnHit(point);
if ((int)(colinfo.HitType & HitInfo.eHitType.kColumnHeader) > 0)
{
return(true);
}
if (tree.HitTestScrollbar(point))
{
return(true);
}
return(base.GetHitTest(point));
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (m_resizingColumn != null)
{
int left = m_resizingColumn.CalculatedRect.Left - m_resizingColumnScrollOffset;
int width = e.X - left;
if (width < 10)
{
width = 10;
}
m_resizingColumn.Width = width;
Columns.RecalcVisibleColumsRect(true);
Invalidate();
return;
}
TreeListColumn hotcol = null;
TreeList.HitInfo info = Columns.CalcHitInfo(new Point(e.X, e.Y), HScrollValue());
if ((int)(info.HitType & HitInfo.eHitType.kColumnHeader) > 0)
{
hotcol = info.Column;
}
if ((int)(info.HitType & HitInfo.eHitType.kColumnHeaderResize) > 0)
{
Cursor = Cursors.VSplit;
}
else
{
Cursor = Cursors.Arrow;
}
SetHotColumn(hotcol, true);
int vScrollOffset = VScrollValue();
int newhotrow = -1;
if (hotcol == null)
{
int row = (e.Y - Columns.Options.HeaderHeight) / RowOptions.ItemHeight;
newhotrow = row + vScrollOffset;
}
if (newhotrow != m_hotrow)
{
InvalidateRow(m_hotrow);
m_hotrow = newhotrow;
InvalidateRow(m_hotrow);
}
}
