/// <summary>
/// Raises the <see cref="AbstractMargin.MouseDown"/> event.
/// </summary>
/// <param name="eventArgs">The <see cref="System.Windows.Forms.MouseEventArgs"/> instance containing the event data.</param>
protected override void OnMouseDown(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);
// focus the textarea if the user clicks on the line number view
TextArea.Focus();
if (!showFolding || realline < 0 || realline + 1 >= TextArea.Document.TotalNumberOfLines)
{
return;
}
List <Fold> folds = TextArea.Document.FoldingManager.GetFoldsWithStartAt(realline);
foreach (Fold fold in folds)
{
fold.IsFolded = !fold.IsFolded;
}
TextArea.Document.FoldingManager.NotifyFoldingChanged(EventArgs.Empty);
base.OnMouseDown(eventArgs);
}
protected void OnDragOver(object sender, DragEventArgs e)
{
if (!_textArea.Focused)
{
_textArea.Focus();
}
Point p = _textArea.PointToClient(new Point(e.X, e.Y));
if (_textArea.TextView.DrawingPosition.Contains(p.X, p.Y))
{
TextLocation realmousepos = _textArea.TextView.GetLogicalPosition(p.X - _textArea.TextView.DrawingPosition.X, p.Y - _textArea.TextView.DrawingPosition.Y);
int lineNr = Math.Min(_textArea.Document.TotalNumberOfLines - 1, Math.Max(0, realmousepos.Y));
_textArea.Caret.Position = new TextLocation(realmousepos.X, lineNr);
_textArea.SetDesiredColumn();
if (e.Data.GetDataPresent(typeof(string)) && !_textArea.IsReadOnly(_textArea.Caret.Offset))
{
e.Effect = GetDragDropEffect(e);
}
else
{
e.Effect = DragDropEffects.None;
}
}
else
{
e.Effect = DragDropEffects.None;
}
}
/// <summary>
/// Jumps to a given position in the document.
/// </summary>
/// <param name="line">The line.</param>
/// <param name="column">The column.</param>
public void JumpTo(int line, int column)
{
_textArea.Focus();
_textArea.SelectionManager.ClearSelection();
_textArea.Caret.Position = new TextLocation(column, line);
_textArea.SetDesiredColumn();
ScrollToCaret();
}
void OnMouseDown(object sender, MouseEventArgs e)
{
_textArea.MousePositionInternal = e.Location;
Point mousepos = e.Location;
if (_doDragDrop)
{
return;
}
if (_doubleClick)
{
_doubleClick = false;
return;
}
if (_textArea.TextView.DrawingPosition.Contains(mousepos.X, mousepos.Y))
{
_gotMouseDown = true;
_textArea.SelectionManager.SelectFrom.Where = WhereFrom.TextArea;
_button = e.Button;
// double-click
if (_button == MouseButtons.Left && e.Clicks == 2)
{
int deltaX = Math.Abs(_lastMouseDownPosition.X - e.X);
int deltaY = Math.Abs(_lastMouseDownPosition.Y - e.Y);
if (deltaX <= SystemInformation.DoubleClickSize.Width &&
deltaY <= SystemInformation.DoubleClickSize.Height)
{
DoubleClickSelectionExtend();
_lastMouseDownPosition = new Point(e.X, e.Y);
if (_textArea.SelectionManager.SelectFrom.Where == WhereFrom.Gutter)
{
if (!_minSelection.IsEmpty && !_maxSelection.IsEmpty && _textArea.SelectionManager.Selections.Count > 0)
{
_textArea.SelectionManager.Selections[0].StartPosition = _minSelection;
_textArea.SelectionManager.Selections[0].EndPosition = _maxSelection;
_textArea.SelectionManager.SelectionStart = _minSelection;
_minSelection = TextLocation.Empty;
_maxSelection = TextLocation.Empty;
}
}
return;
}
}
_minSelection = TextLocation.Empty;
_maxSelection = TextLocation.Empty;
_lastMouseDownPosition = _mouseDownPosition = new Point(e.X, e.Y);
if (_button == MouseButtons.Left)
{
Fold marker = _textArea.TextView.GetFoldMarkerFromPosition(mousepos.X - _textArea.TextView.DrawingPosition.X,
mousepos.Y - _textArea.TextView.DrawingPosition.Y);
if (marker != null && marker.IsFolded)
{
if (_textArea.SelectionManager.HasSomethingSelected)
{
_clickedOnSelectedText = true;
}
TextLocation startLocation = new TextLocation(marker.StartColumn, marker.StartLine);
TextLocation endLocation = new TextLocation(marker.EndColumn, marker.EndLine);
_textArea.SelectionManager.SetSelection(new DefaultSelection(_textArea.TextView.Document, startLocation, endLocation));
_textArea.Caret.Position = startLocation;
_textArea.SetDesiredColumn();
_textArea.Focus();
return;
}
if ((Control.ModifierKeys & Keys.Shift) == Keys.Shift)
{
ExtendSelectionToMouse();
}
else
{
TextLocation realmousepos = _textArea.TextView.GetLogicalPosition(mousepos.X - _textArea.TextView.DrawingPosition.X, mousepos.Y - _textArea.TextView.DrawingPosition.Y);
_clickedOnSelectedText = false;
int offset = _textArea.Document.PositionToOffset(realmousepos);
if (_textArea.SelectionManager.HasSomethingSelected &&
_textArea.SelectionManager.IsSelected(offset))
{
_clickedOnSelectedText = true;
}
else
{
_textArea.SelectionManager.ClearSelection();
if (mousepos.Y > 0 && mousepos.Y < _textArea.TextView.DrawingPosition.Height)
{
TextLocation pos = new TextLocation
{
X = realmousepos.X,
Y = Math.Min(_textArea.Document.TotalNumberOfLines - 1, realmousepos.Y),
};
_textArea.Caret.Position = pos;
_textArea.SetDesiredColumn();
}
}
}
}
else if (_button == MouseButtons.Right)
{
// Rightclick sets the cursor to the click position unless
// the previous selection was clicked
TextLocation realmousepos = _textArea.TextView.GetLogicalPosition(mousepos.X - _textArea.TextView.DrawingPosition.X, mousepos.Y - _textArea.TextView.DrawingPosition.Y);
int offset = _textArea.Document.PositionToOffset(realmousepos);
if (!_textArea.SelectionManager.HasSomethingSelected ||
!_textArea.SelectionManager.IsSelected(offset))
{
_textArea.SelectionManager.ClearSelection();
if (mousepos.Y > 0 && mousepos.Y < _textArea.TextView.DrawingPosition.Height)
{
TextLocation pos = new TextLocation
{
X = realmousepos.X,
Y = Math.Min(_textArea.Document.TotalNumberOfLines - 1, realmousepos.Y),
};
_textArea.Caret.Position = pos;
_textArea.SetDesiredColumn();
}
}
}
}
_textArea.Focus();
}
