protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.StylusDevice != null || eraseTester == null)
{
return;
}
if (eraseTester.IsValid)
{
eraseTester.AddPoint(e.GetPosition(this));
}
}
private void EraserCanvas_MouseMove(object sender, MouseEventArgs e)
{
if (_isDown)
{
var point = e.GetPosition(this);
TranslateTransform.X = point.X - EraserShape.ActualWidth / 2;
TranslateTransform.Y = point.Y - EraserShape.ActualHeight / 2;
_incrementalStrokeHitTester.AddPoint(point);
}
}
public override void Perform()
{
IncrementalStrokeHitTester IncrementalStroke = InkCanvas.Strokes.GetIncrementalStrokeHitTester(EraserShape);
IncrementalLassoHitTester IncrementalLasso = InkCanvas.Strokes.GetIncrementalLassoHitTester(OptionIndex % 100);
switch (OptionIndex % 2)
{
case 0: //AddPoint
{
StrokeCollection strokeCollection = InkCanvas.Strokes;
if (IsRandomPoint == true || strokeCollection == null || strokeCollection.Count == 0)
{
IncrementalStroke.AddPoint(Point);
IncrementalLasso.AddPoint(Point);
}
else
{
//get list of all points on the stroke
foreach (Stroke stoke in strokeCollection)
{
StylusPointCollection.Add(stoke.StylusPoints.Reformat(StylusPointCollection.Description));
}
IncrementalStroke.AddPoint(StylusPointCollection[RandomIndex % StylusPointCollection.Count].ToPoint());
IncrementalLasso.AddPoint(StylusPointCollection[RandomIndex % StylusPointCollection.Count].ToPoint());
}
}
break;
case 1: //AddPoints
{
IncrementalLasso.AddPoints(PointCollection);
IncrementalStroke.AddPoints(PointCollection);
}
break;
}
}
//</Snippet2>
//</Snippet6>
//</snippet1>
//<Snippet11>
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
if (e.StylusDevice != null)
{
return;
}
EllipseStylusShape eraserTip = new EllipseStylusShape(3, 3, 0);
eraseTester =
presenter.Strokes.GetIncrementalStrokeHitTester(eraserTip);
eraseTester.StrokeHit += new StrokeHitEventHandler(eraseTester_StrokeHit);
eraseTester.AddPoint(e.GetPosition(this));
}
public DrawingWindow()
{
InitializeComponent();
drawingAttributes = surfaceDessin.DefaultDrawingAttributes;
drawingAttributes.Color = (Color)ColorConverter.ConvertFromString("#000000");
drawingAttributes.Height = 10;
drawingAttributes.Width = 10;
drawingAttributes.StylusTip = StylusTip.Ellipse;
socket.On(SocketEvents.STROKE_DRAWING, (points) => {
Dispatcher.Invoke(() => {
Stroke newStroke = new Stroke(JsonConvert.DeserializeObject <StylusPointCollection>(points.ToString()));
newStroke.DrawingAttributes = drawingAttributes;
newStroke.DrawingAttributes.Color = drawingAttributes.Color;
newStroke.DrawingAttributes.Width = drawingAttributes.Width;
newStroke.DrawingAttributes.Height = drawingAttributes.Height;
newStroke.DrawingAttributes.StylusTip = drawingAttributes.StylusTip;
surfaceDessin.Strokes.Add(newStroke);
ongoingStrokeIndex.Add(newStroke);
});
});
socket.On(SocketEvents.STROKE_COLLECTED, (points) => {
Dispatcher.Invoke(() => {
Stroke newStroke = new Stroke(JsonConvert.DeserializeObject <StylusPointCollection>(points.ToString()));
newStroke.DrawingAttributes.Color = drawingAttributes.Color;
newStroke.DrawingAttributes.Width = drawingAttributes.Width;
newStroke.DrawingAttributes.Height = drawingAttributes.Height;
newStroke.DrawingAttributes.StylusTip = drawingAttributes.StylusTip;
foreach (Stroke strokeToDelete in ongoingStrokeIndex)
{
surfaceDessin.Strokes.Remove(strokeToDelete);
}
surfaceDessin.Strokes.Add(newStroke);
ongoingStrokeIndex.Clear();
});
});
socket.On(SocketEvents.STROKE_ERASING, (points) => {
Dispatcher.Invoke(() => {
List <StylusPoint> pointsToCheck = (JsonConvert.DeserializeObject <List <StylusPoint> >(points.ToString()));
pointsToCheck.ForEach((point) => {
StrokeCollection strokesToBeErased = surfaceDessin.Strokes.HitTest(new Point(point.X, point.Y));
surfaceDessin.Strokes.Remove(strokesToBeErased);
});
});
});
socket.On(SocketEvents.STROKE_SEGMENT_ERASING, (points) => {
Dispatcher.Invoke(() => {
List <StylusPoint> pointsToCheck = (JsonConvert.DeserializeObject <List <StylusPoint> >(points.ToString()));
Console.WriteLine(pointsToCheck.Count + " POINTS");
IncrementalStrokeHitTester eraserTester = surfaceDessin.Strokes.GetIncrementalStrokeHitTester(generateStylusShape());
eraserTester.StrokeHit += EraserTester_StrokeHit;
pointsToCheck.ForEach((point) => eraserTester.AddPoint(new Point(point.X, point.Y)));
eraserTester.StrokeHit -= EraserTester_StrokeHit;
eraserTester.EndHitTesting();
});
});
socket.On(SocketEvents.STROKE_COLOR, (color) =>
{
Dispatcher.Invoke(() => {
string hex = "#" + ((Int64)color).ToString("X8");
drawingAttributes.Color = (Color)ColorConverter.ConvertFromString(hex);
});
});
socket.On(SocketEvents.STROKE_SIZE, (size) =>
{
Dispatcher.Invoke(() => {
drawingAttributes.Height = Convert.ToInt32(size.ToString());
drawingAttributes.Width = Convert.ToInt32(size.ToString());
});
});
socket.On(SocketEvents.STROKE_TIP, (tip) =>
{
Dispatcher.Invoke(() => {
drawingAttributes.StylusTip = ((string)tip == Tool.PEN_ROUND_TIP) ? StylusTip.Ellipse : StylusTip.Rectangle;
});
});
socket.On(SocketEvents.STROKE_TOOL, (tool) =>
{
Dispatcher.Invoke(() => {
OutilSelectionne = tool.ToString();
});
});
}