/// <summary>
/// resets the variables needed to restart the animation
/// </summary>
private void ResetAnimation()
{
try
{
Children.RemoveRange(globalInitialChildCount, Children.Count);
}
catch (Exception e)
{
DebugMessageHandler.SetDebugMessage(this, e.Message);
}
globalInitialChildCount = -1;
animationCurrentFrame = 0;
ChildEllipseHolder.Clear();
ChildEllipsePointHolder.Clear();
//_dispatchTimer.Stop();
}
/// <summary>
/// Indicates the way in which the pattern was drawn by means of animation
/// </summary>
/// <param name="stroke">The Collection of Expert Strokes</param>
private void DisplayStrokesPatterns(Stroke stroke)
{
//if its the first run remember the default number of children and set AnimationPlaying to true;
if (globalInitialChildCount < 0)
{
AnimationPlaying = true;
globalInitialChildCount = this.Children.Count;
DebugMessageHandler.SetDebugMessage(this, "Global Child count: " + globalInitialChildCount.ToString());
return;
}
//create a single large stroke collecting all the styluspoint collection
//StylusPointCollection spc = new StylusPointCollection();
//for (int i = 0; i < stroke.Count; i++)
//{
// spc.Add(stroke[i].StylusPoints);
//}
//Stroke s = new Stroke(spc);
//if the animation frame of animation is less than the count of stylus points and the number of ellipses
if (animationCurrentFrame < stroke.StylusPoints.Count + maxEllipses)
{
//if the animation frame is less than the number of children
if (animationCurrentFrame < stroke.StylusPoints.Count - 1)
{
//get the styluspoint location according to the frame
Point p = stroke.StylusPoints[animationCurrentFrame].ToPoint();
//add the point to the EllipseChildHolder
ChildEllipsePointHolder.Add(p);
//draw an ellipse in that point
Ellipse ellipse = new Ellipse
{
Width = 10,
Height = 10
};
double left = p.X - (ellipse.Width / 2);
double top = p.Y - (ellipse.Height / 2);
//change the color according to the sequence
Color EllipseColor = Color.FromArgb(255, 128, 0, 128);
ellipse.Fill = new SolidColorBrush(EllipseColor);
ellipse.Margin = new Thickness(left, top, 0, 0);
//this.Children.Insert(0,ellipse);
ellipse.Tag = "animation";
this.Children.Add(ellipse);
ChildEllipseHolder.Add(ellipse);
}
if (animationCurrentFrame >= maxEllipses)
{
try
{
//for making the following ellipse smaller.
for (int i = ChildEllipseHolder.Count - 1; i > 0; i--)
{
ChildEllipseHolder[i].Width -= 0.25;
ChildEllipseHolder[i].Height -= 0.25;
ChildEllipseHolder[i].Margin = new Thickness(
ChildEllipsePointHolder[i].X - ChildEllipseHolder[i].Width / 2,
ChildEllipsePointHolder[i].Y - ChildEllipseHolder[i].Height / 2, 0, 0);
}
this.Children.RemoveAt(globalInitialChildCount);
ChildEllipseHolder.RemoveAt(0);
ChildEllipsePointHolder.RemoveAt(0);
}
catch
{
DebugMessageHandler.SetDebugMessage(this, "ExpertInkCanvas/ChildrenCount= " + this.Children.Count);
}
}
animationCurrentFrame += 1;
}
else
{
AnimationPlaying = false;
ResetAnimation();
}
}