void textView_VisualLinesChanged(object sender, EventArgs e)
{
foreach (var ctrl in this.Children)
{
var currentThumb = ctrl as Thumb;
PinDebuggerControl pinControl = TryFindChild <PinDebuggerControl>(currentThumb);
if (pinControl != null)
{
// update relative location
Point location = pinControl.Location;
location.X += horizontalOffset - textView.HorizontalOffset;
location.Y += verticalOffset - textView.VerticalOffset;
Canvas.SetLeft(currentThumb, location.X);
Canvas.SetTop(currentThumb, location.Y);
pinControl.Location = location;
pinControl.Mark.PinPosition = new Point {
X = location.X + textView.HorizontalOffset,
Y = location.Y + textView.VerticalOffset,
};
}
}
verticalOffset = textView.VerticalOffset;
horizontalOffset = textView.HorizontalOffset;
}
/// <summary>
/// Unpins an element.
/// </summary>
/// <param name="element">Element to unpin.</param>
public void Unpin(PinDebuggerControl element)
{
if (element == null)
{
throw new NullReferenceException("Element is null!");
}
foreach (var thumb in this.Children)
{
PinDebuggerControl pinControl = TryFindChild <PinDebuggerControl>((DependencyObject)thumb);
if (pinControl != null && pinControl == element)
{
this.Children.Remove((UIElement)thumb);
element.Close();
break;
}
}
}
/// <summary>
/// Pins an element;
/// </summary>
/// <param name="element">Element to pin.</param>
public void Pin(PinDebuggerControl element)
{
if (element == null)
{
throw new NullReferenceException("Element is null!");
}
Thumb currentThumb = new Thumb();
// check for saved position
if (!element.Mark.PinPosition.HasValue)
{
// this is satisfied when pinning the first time
element.Mark.PinPosition = new Point {
X = element.Location.X + textView.HorizontalOffset,
Y = element.Location.Y + textView.VerticalOffset
};
Canvas.SetTop(currentThumb, element.Location.Y);
Canvas.SetLeft(currentThumb, element.Location.X);
}
else
{
// this is satisfied when loading the pins - so we might have hidden pins
element.Location = new Point {
X = element.Mark.PinPosition.Value.X - textView.HorizontalOffset,
Y = element.Mark.PinPosition.Value.Y - textView.VerticalOffset
};
Canvas.SetTop(currentThumb, element.Mark.PinPosition.Value.Y);
Canvas.SetLeft(currentThumb, element.Mark.PinPosition.Value.X);
}
currentThumb.Style = element.TryFindResource("PinThumbStyle") as Style;
currentThumb.ApplyTemplate();
currentThumb.DragDelta += onDragDelta;
currentThumb.DragStarted += currentThumb_DragStarted;
currentThumb.DragCompleted += currentThumb_DragCompleted;
var container = TryFindChild <StackPanel>(currentThumb);
container.Children.Add(element);
this.Children.Add(currentThumb);
}
