/// <summary>
/// Raises the <see cref="AbstractMargin.MouseMove"/> event.
/// </summary>
/// <param name="eventArgs">The <see cref="System.Windows.Forms.MouseEventArgs"/> instance containing the event data.</param>
protected override void OnMouseMove(MouseEventArgs eventArgs)
{
Point mousepos = eventArgs.Location;
bool showFolding = TextArea.Document.TextEditorProperties.EnableFolding;
int physicalLine = (mousepos.Y + TextArea.VirtualTop.Y) / TextArea.TextView.LineHeight;
int realline = TextArea.Document.GetFirstLogicalLine(physicalLine);
if (!showFolding || realline < 0 || realline + 1 >= TextArea.Document.TotalNumberOfLines)
{
return;
}
List <Fold> foldMarkers = TextArea.Document.FoldingManager.GetFoldsWithStartAt(realline);
int oldSelection = _selectedFoldLine;
if (foldMarkers.Count > 0)
{
_selectedFoldLine = realline;
}
else
{
_selectedFoldLine = -1;
}
if (oldSelection != _selectedFoldLine)
{
TextArea.Invalidate(DrawingPosition);
}
base.OnMouseMove(eventArgs);
}
/// <summary>
/// Raises the <see cref="AbstractMargin.MouseLeave"/> event.
/// </summary>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
protected override void OnMouseLeave(EventArgs e)
{
if (_selectedFoldLine != -1)
{
_selectedFoldLine = -1;
TextArea.Invalidate(DrawingPosition);
}
base.OnMouseLeave(e);
}
void HScrollBarValueChanged(object sender, EventArgs e)
{
_textArea.VirtualTop = new Point(_hScrollBar.Value * _textArea.TextView.ColumnWidth, _textArea.VirtualTop.Y);
_textArea.Invalidate();
}
