public ReorderColumnState(TreeViewAdv tree, TreeColumn column, Point initialMouseLocation)
: base(tree, column)
{
_location = new Point(initialMouseLocation.X + Tree.OffsetX, 0);
_dragOffset = tree.GetColumnX(column) - initialMouseLocation.X;
_ghostImage = column.CreateGhostImage(new Rectangle(0, 0, column.Width, tree.ColumnHeaderHeight), tree.Font);
}
public override bool MouseMove(MouseEventArgs args)
{
_dropColumn = null;
_location = new Point(args.X + Tree.OffsetX, 0);
int x = 0;
foreach (TreeColumn c in Tree.Columns)
{
if (c.IsVisible)
{
if (_location.X < x + c.Width / 2)
{
_dropColumn = c;
break;
}
x += c.Width;
}
}
Tree.UpdateHeaders();
return true;
}
private void DrawColumnHeaders(Graphics gr)
{
PerformanceAnalyzer.Start("DrawColumnHeaders");
ReorderColumnState reorder = Input as ReorderColumnState;
int x = 0;
TreeColumn.DrawBackground(gr, new Rectangle(0, 0, ClientRectangle.Width + 2, ColumnHeaderHeight - 1), false, false);
gr.TranslateTransform(-OffsetX, 0);
foreach (TreeColumn c in Columns)
{
if (c.IsVisible)
{
if (x >= OffsetX && x - OffsetX < this.Bounds.Width) // skip invisible columns
{
Rectangle rect = new Rectangle(x, 0, c.Width, ColumnHeaderHeight - 1);
gr.SetClip(rect);
bool pressed = ((Input is ClickColumnState || reorder != null) && ((Input as ColumnState).Column == c));
c.Draw(gr, rect, Font, pressed, _hotColumn == c);
gr.ResetClip();
if (reorder != null && reorder.DropColumn == c)
{
TreeColumn.DrawDropMark(gr, rect);
}
}
x += c.Width;
}
}
if (reorder != null)
{
if (reorder.DropColumn == null)
{
TreeColumn.DrawDropMark(gr, new Rectangle(x, 0, 0, ColumnHeaderHeight));
}
gr.DrawImage(reorder.GhostImage, new Point(reorder.Location.X + +reorder.DragOffset, reorder.Location.Y));
}
PerformanceAnalyzer.Finish("DrawColumnHeaders");
}
public ResizeColumnState(TreeViewAdv tree, TreeColumn column, Point p)
: base(tree, column)
{
_initLocation = p;
_initWidth = column.Width;
}
public ColumnState(TreeViewAdv tree, TreeColumn column)
: base(tree)
{
_column = column;
}
internal void OnColumnWidthChanged(TreeColumn column)
{
if (ColumnWidthChanged != null)
ColumnWidthChanged(this, new TreeColumnEventArgs(column));
}
internal void OnColumnReordered(TreeColumn column)
{
if (ColumnReordered != null)
ColumnReordered(this, new TreeColumnEventArgs(column));
}
internal void ChangeColumnWidth(TreeColumn column)
{
if (!(_input is ResizeColumnState))
{
FullUpdate();
OnColumnWidthChanged(column);
}
}
private void UpdateToolTip(MouseEventArgs e)
{
TreeColumn col = GetColumnAt(e.Location);
if (col != null)
{
if (col != _tooltipColumn)
SetTooltip(col.TooltipText);
}
else
DisplayNodesTooltip(e);
_tooltipColumn = col;
}
internal int GetColumnX(TreeColumn column)
{
int x = -OffsetX;
foreach (TreeColumn col in Columns)
{
if (col.IsVisible)
{
if (column == col)
return x;
else
x += col.Width;
}
}
return x;
}
public ClickColumnState(TreeViewAdv tree, TreeColumn column, Point location)
: base(tree, column)
{
_location = location;
}
public TreeColumnEventArgs(TreeColumn column)
{
_column = column;
}
public ResizeColumnState(TreeViewAdv tree, TreeColumn column, Point p)
: base(tree, column)
{
_initLocation = p;
_initWidth = column.Width;
}
public ClickColumnState(TreeViewAdv tree, TreeColumn column, Point location)
: base(tree, column)
{
_location = location;
}
public ColumnState(TreeViewAdv tree, TreeColumn column)
: base(tree)
{
_column = column;
}
public TreeColumnEventArgs(TreeColumn column)
{
_column = column;
}
