/// <summary>
/// Set the strokes
/// </summary>
/// <param name="inkStrokes">the new ink strokes</param>
public void SetRange(IEnumerable <XInkStroke> inkStrokes)
{
DeleteStrokes();
AddStrokes(inkStrokes);
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Add an ink stroke to the container
/// </summary>
/// <param name="stroke">the stroke to add</param>
public void Add(XInkStroke stroke)
{
lock (_inkStrokes)
{
_inkStrokes.Add(stroke);
InkChanged?.Invoke(this, new EventArgs());
}
}
/// <summary>
/// Adds ink strokes
/// </summary>
/// <param name="strokes">a collection of ink strokes</param>
public void Add(IEnumerable <XInkStroke> strokes)
{
lock (_inkStrokes)
{
_inkStrokes.AddRange(strokes);
InkChanged?.Invoke(this, new EventArgs());
}
}
//public void Deserialize(string json)
//{
// Dispose();
// var strokes = JsonConvert.DeserializeObject<List<InkStroke>>(json);
// Strokes.ForEach(delegate (InkStroke stroke)
// {
// if (stroke.Color.A == 0)
// {
// stroke.Color = Xamarin.Forms.Color.FromRgba(stroke.Color.R, stroke.Color.G, stroke.Color.B, 255);
// }
// stroke.UpdateBounds();
// });
//}
//public string Serialize()
//{
// return JsonConvert.SerializeObject(Strokes);
//}
/// <summary>
/// Dispose of the strokes
/// </summary>
public void Dispose()
{
_inkStrokes.ForEach(delegate(XInkStroke stroke)
{
stroke.Dispose();
});
_inkStrokes.Clear();
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Add a stroke
/// </summary>
/// <param name="inkStroke">the ink stroke to add</param>
public void Add(XInkStroke inkStroke)
{
var newStroke = inkStroke.ToInkStroke();
if (newStroke == null)
{
return;
}
NativeStrokeContainer.AddStroke(newStroke);
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Sets the ink strokes
/// </summary>
/// <param name="inkStrokes">a collection of ink strokes</param>
public void SetRange(IEnumerable <XInkStroke> inkStrokes)
{
lock (_inkStrokes)
{
_inkStrokes.ForEach(delegate(XInkStroke stroke)
{
stroke.Dispose();
});
_inkStrokes.Clear();
_inkStrokes.AddRange(inkStrokes);
}
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Remove the ink stroke
/// </summary>
/// <param name="item">the ink stroke</param>
public void Remove(XInkStroke item)
{
if (item == null)
{
return;
}
lock (_inkStrokes)
{
item.Dispose();
_inkStrokes.Remove(item);
}
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Remove the strokes
/// </summary>
/// <param name="strokesToRemove">the strokes to remove</param>
public void Remove(IReadOnlyList <XInkStroke> strokesToRemove)
{
var ids = from item in strokesToRemove
select item.Id;
foreach (var stroke in NativeStrokeContainer.GetStrokes())
{
if (ids.Contains(stroke.Id.ToString(CultureInfo.InvariantCulture)))
{
stroke.Selected = true;
}
}
NativeStrokeContainer.DeleteSelected();
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Add a collection of strokes.
/// </summary>
/// <param name="strokes">the strokes to add</param>
private void AddStrokes(IEnumerable <XInkStroke> strokes)
{
if (strokes == null)
{
throw new ArgumentNullException(nameof(strokes));
}
var strokesToAdd = from item in strokes
let newStroke = item.ToInkStroke()
where newStroke != null
select newStroke;
foreach (var item in strokesToAdd)
{
NativeStrokeContainer.AddStroke(item);
}
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Remove an ink stroke
/// </summary>
/// <param name="item">the stroke to remove</param>
public void Remove(XInkStroke item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
foreach (var stroke in NativeStrokeContainer.GetStrokes())
{
if (stroke.Id.ToString(CultureInfo.InvariantCulture) == item.Id)
{
stroke.Selected = true;
}
}
NativeStrokeContainer.DeleteSelected();
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// remove a list of strokes
/// </summary>
/// <param name="strokesToRemove">the strokes to remove</param>
public void Remove(IReadOnlyList <XInkStroke> strokesToRemove)
{
if (strokesToRemove == null)
{
throw new ArgumentNullException(nameof(strokesToRemove));
}
lock (_inkStrokes)
{
foreach (var item in strokesToRemove)
{
item.Dispose();
_inkStrokes.Remove(item);
}
}
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Remove all of the ink stroks from the container
/// </summary>
public void Clear()
{
lock (_inkStrokes)
{
var args = new XInkStrokesErasedEventArgs(_inkStrokes.ToList());
if (_inkStrokes.Any())
{
_inkStrokes.ForEach(delegate(XInkStroke item)
{
item.Dispose();
});
_inkStrokes.Clear();
InkChanged?.Invoke(this, new EventArgs());
}
}
GC.Collect();
}
/// <summary>
/// Clear the strokes
/// </summary>
public void Clear()
{
DeleteStrokes();
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Add a collection of ink strokes
/// </summary>
/// <param name="strokes">the ink strokes to add</param>
public void Add(IEnumerable <XInkStroke> strokes)
{
AddStrokes(strokes);
InkChanged?.Invoke(this, new EventArgs());
}
/// <summary>
/// Clear the strokes
/// </summary>
public void Dispose()
{
Clear();
InkChanged?.Invoke(this, new EventArgs());
}
private void InkPresenter_StrokesCollected(InkPresenter sender, InkStrokesCollectedEventArgs args)
{
InkChanged?.Invoke(this, null);
}