public static void BeginAnimation(this DependencyObject obj, DependencyProperty property, PointAnimation animation)
{
animation.EnableDependentAnimation = true;
if (property == MapBase.CenterPointProperty)
{
BeginAnimation(obj, "CenterPoint", animation);
}
}
private void VisualizeGraph(RainData rainData, bool animated = true)
{
List<int> pointValues;
if (rainData == null || rainData.Points == null)
pointValues = new List<int>();
else
pointValues = rainData.Points.Take(25).Select(p => p.AdjustedValue).ToList();
while (pointValues.Count < 25)
pointValues.Add(pointValues.LastOrDefault());
var path = GraphView.Data as PathGeometry;
var graphSize = new Size(GraphContainer.ActualWidth, GraphContainer.ActualHeight);
var step = graphSize.Width / Model.Entries;
Func<int, double> xForIndex = idx => idx == 0 ? -2 : idx * step;
var x = 0;
var max = (graphSize.Height / 12.0 * 11.0) - 10;
var allZeros = pointValues.Take(Model.Entries + 1).All(p => p == 0);
var points = pointValues.Select(v => {
var y = allZeros ? max - 20 : Math.Max(1, max - (v * max / 100));
var p = new Point(xForIndex(x), y);
x++;
return p;
}).ToList();
points.Add(new Point(graphSize.Width + 2, points.Last().Y));
points.Add(new Point(graphSize.Width + 2, graphSize.Height + 2));
PathFigure figure;
var startPoint = new Point(-2.0, graphSize.Height + 2);
if (path == null) {
path = new PathGeometry();
figure = new PathFigure() { StartPoint = startPoint, IsClosed = true };
path.Figures.Add(figure);
foreach (var p in points) {
figure.Segments.Add(new LineSegment() { Point = p });
}
GraphView.Data = path;
}
var entriesAnimated = graphEntries != Model.Entries && graphEntries > 0 && Model.Entries > 0;
if (entriesAnimated)
UpdateEntriesImage();
var ms300 = TimeSpan.FromMilliseconds(entriesAnimated ? 450 / Math.Abs(Model.Entries - graphEntries) : animated ? 300 : 0);
graphEntries = Model.Entries;
var storyboard = new Storyboard() { Duration = ms300 };
figure = path.Figures[0];
var anim = new PointAnimation() { Duration = ms300, To = startPoint, FillBehavior = FillBehavior.HoldEnd, EnableDependentAnimation = true };
Storyboard.SetTarget(anim, figure);
Storyboard.SetTargetProperty(anim, "StartPoint");
storyboard.Children.Add(anim);
for (var i = 0; i < points.Count; ++i) {
anim = new PointAnimation() { Duration = ms300, To = points[i], FillBehavior = FillBehavior.HoldEnd, EnableDependentAnimation = true };
Storyboard.SetTarget(anim, figure.Segments[i]);
Storyboard.SetTargetProperty(anim, "Point");
storyboard.Children.Add(anim);
}
var strokeAnim = new ColorAnimation() { Duration = ms300, FillBehavior = FillBehavior.HoldEnd, To = allZeros ? Colors.Transparent : graphStrokeColor, EnableDependentAnimation = true };
Storyboard.SetTarget(strokeAnim, GraphView.Stroke);
Storyboard.SetTargetProperty(strokeAnim, "Color");
storyboard.Children.Add(strokeAnim);
var fillTopAnim = new ColorAnimation() { Duration = ms300, FillBehavior = FillBehavior.HoldEnd, To = allZeros ? Colors.Black : graphFillFrom, EnableDependentAnimation = true };
Storyboard.SetTarget(fillTopAnim, ((LinearGradientBrush)GraphView.Fill).GradientStops[0]);
Storyboard.SetTargetProperty(fillTopAnim, "Color");
storyboard.Children.Add(fillTopAnim);
storyboard.Begin(() => GraphView.Data = path);
}
void EndUpdateUI()
{
_animation.Completed -= Animation_Completed;
_animation = new PointAnimation
{
From = Effect.EndPoint,
To = FROM,
Duration = REVERSE_DURATION
};
Animate(Effect);
}
void BeginUpdateUI()
{
_animation = new PointAnimation
{
From = FROM,
To = TO,
Duration = _duration
};
_animation.Completed += Animation_Completed;
Animate(Effect);
}
public static PointAnimation CreatePoint(Point to, Duration duration, string targetProperty)
{
var animation = new PointAnimation
{
To = to,
Duration = duration,
EnableDependentAnimation = true
};
Storyboard.SetTargetProperty(animation, targetProperty);
return animation;
}
public static PointAnimation CreatePoint(Point from, Point to, Duration duration, string targetProperty)
{
var animation = new PointAnimation
{
From = from,
To = to,
Duration = duration
};
Storyboard.SetTargetProperty(animation, targetProperty);
return animation;
}
