/// <summary>
/// Called whent he cursor changes.
/// </summary>
/// <param name="e">The event args.</param>
protected override void OnSetCursor(SetCursorEventArgs e)
{
_cachedLink = null;
if (_pageCacheValid)
{
var offset = GetScrollOffset();
var location = new Point(
e.Location.X - offset.Width,
e.Location.Y - offset.Height
);
for (int page = _visiblePageStart; page <= _visiblePageEnd; page++)
{
foreach (var link in GetPageLinks(page))
{
if (link.Bounds.Contains(location))
{
_cachedLink = link;
e.Cursor = Cursors.Hand;
return;
}
}
}
}
base.OnSetCursor(e);
}
protected override void OnSetCursor(SetCursorEventArgs e)
{
if (_canPan && e.HitTest == HitTest.Client)
{
e.Cursor = PanCursor;
}
base.OnSetCursor(e);
}
protected virtual void OnSetCursor(SetCursorEventArgs e)
{
var handler = SetCursor;
if (handler != null)
{
handler(this, e);
}
}
private void WmSetCursor(ref Message m)
{
var e = new SetCursorEventArgs(
PointToClient(Cursor.Position),
(HitTest)(m.LParam.ToInt32() & 0xffff)
);
OnSetCursor(e);
Cursor.Current = e.Cursor ?? Cursor;
}