void item_SelectChanged(object sender, SelectEventArgs e)
{
if (_ignoreSelectChanged) return;
DirectoryItem di = sender as DirectoryItem;
if (di == null) return;
if ((e.Modifiers & Keys.Control) == Keys.Control && (e.Modifiers & Keys.Shift) != Keys.Shift)
{
if (_selectedItem != null)
{
_selectedItem.IsOutlined = false;
}
_selectionStart = di;
_selectedItem = di;
_selectedItem.IsOutlined = true;
Invalidate();
return;
}
_ignoreSelectChanged = true;
if (((e.Modifiers & Keys.Shift) == Keys.Shift) && ((e.Modifiers & Keys.Control) != Keys.Control))
{
ClearSelection();
_selectedItem.IsOutlined = false;
int iOld;
if (_selectionStart != null)
{
iOld = _items.IndexOf(_selectionStart);
}
else
{
_selectionStart = _items[0];
iOld = 0;
}
int iNew = _items.IndexOf(di);
int start = Math.Min(iOld, iNew);
int end = Math.Max(iOld, iNew);
for (int i = start; i <= end; i++)
{
_items[i].IsSelected = true;
}
_selectionStart.IsOutlined = false;
}
// With no control keys or both.
if ((((e.Modifiers & Keys.Shift) == Keys.Shift) && ((e.Modifiers & Keys.Control) == Keys.Control)) ||
(((e.Modifiers & Keys.Shift) != Keys.Shift) && ((e.Modifiers & Keys.Control) != Keys.Control)))
{
if (_selectedItem != null)
{
_selectedItem.IsOutlined = false;
}
ClearSelection();
di.IsSelected = true;
_selectionStart = di;
di.IsOutlined = true;
}
_selectedItem = di;
di.IsOutlined = true;
Invalidate();
_ignoreSelectChanged = false;
}
/// <summary>
/// Updates the buffer in order to correctly re-draw this item, if it is on the page, and then invalidates
/// the area where this will be drawn.
/// </summary>
/// <param name="item">The directory item to invalidate</param>
public void RefreshItem(DirectoryItem item)
{
Graphics g = Graphics.FromImage(Page);
Brush b = new SolidBrush(item.BackColor);
g.FillRectangle(b, DocumentToClient(item.Bounds));
b.Dispose();
// first translate into document coordinates
System.Drawing.Drawing2D.Matrix mat = new System.Drawing.Drawing2D.Matrix();
mat.Translate(ClientRectangle.X, ClientRectangle.Y);
g.Transform = mat;
item.Draw(new PaintEventArgs(g, item.Bounds));
g.Dispose();
}