/// <summary>
/// Apply marker properties
/// </summary>
/// <param name="dataPoint">DataPoint</param>
/// <param name="markerSize">Marker size</param>
//internal static void ApplyMarkerProperties(DataPoint dataPoint)
//{
// Marker marker = dataPoint.Marker;
// marker.ScaleFactor = (Double)dataPoint.MarkerScale;
// marker.MarkerSize = new Size((Double)dataPoint.MarkerSize, (Double)dataPoint.MarkerSize);
// if ((Boolean)dataPoint.MarkerEnabled)
// marker.BorderColor = dataPoint.MarkerBorderColor;
// else
// marker.BorderColor = new SolidColorBrush(Colors.Transparent);
// marker.BorderThickness = ((Thickness)dataPoint.MarkerBorderThickness).Left;
// marker.ShadowEnabled = (Boolean)dataPoint.ShadowEnabled;
// marker.MarkerFillColor = dataPoint.MarkerColor;
//}
/// <summary>
/// Apply animation for line chart
/// </summary>
/// <param name="canvas">Line chart canvas</param>
/// <param name="storyboard">Storyboard</param>
/// <param name="isLineCanvas">Whether canvas is line canvas</param>
/// <returns>Storyboard</returns>
//private static Storyboard ApplyLineChartAnimation(DataSeries currentDataSeries, Panel canvas, Storyboard storyboard, Boolean isLineCanvas)
//{
// LinearGradientBrush opacityMaskBrush = new LinearGradientBrush() { StartPoint = new Point(0, 0.5), EndPoint = new Point(1, 0.5) };
// // Create gradients for opacity mask animation
// GradientStop GradStop1 = new GradientStop() { Color = Colors.White, Offset = 0 };
// GradientStop GradStop2 = new GradientStop() { Color = Colors.White, Offset = 0 };
// GradientStop GradStop3 = new GradientStop() { Color = Colors.Transparent, Offset = 0.01 };
// GradientStop GradStop4 = new GradientStop() { Color = Colors.Transparent, Offset = 1 };
// // Add gradients to gradient stop list
// opacityMaskBrush.GradientStops.Add(GradStop1);
// opacityMaskBrush.GradientStops.Add(GradStop2);
// opacityMaskBrush.GradientStops.Add(GradStop3);
// opacityMaskBrush.GradientStops.Add(GradStop4);
// canvas.OpacityMask = opacityMaskBrush;
// double beginTime = (isLineCanvas) ? 0.25 + 0.5 : 0.5;
// DoubleCollection values = Graphics.GenerateDoubleCollection(0, 1);
// DoubleCollection timeFrames = Graphics.GenerateDoubleCollection(0, 1);
// List<KeySpline> splines = AnimationHelper.GenerateKeySplineList(new Point(0, 0), new Point(1, 1), new Point(0, 0), new Point(1, 1));
// storyboard.Children.Add(AnimationHelper.CreateDoubleAnimation(currentDataSeries, GradStop2, "(GradientStop.Offset)", beginTime, timeFrames, values, splines));
// values = Graphics.GenerateDoubleCollection(0.01, 1);
// timeFrames = Graphics.GenerateDoubleCollection(0, 1);
// splines = AnimationHelper.GenerateKeySplineList(new Point(0, 0), new Point(1, 1), new Point(0, 0), new Point(1, 1));
// storyboard.Children.Add(AnimationHelper.CreateDoubleAnimation(currentDataSeries, GradStop3, "(GradientStop.Offset)", beginTime, timeFrames, values, splines));
// storyboard.Completed += delegate
// {
// GradStop2.Offset = 1;
// GradStop3.Offset = 1;
// GradStop1.Color = Colors.White;
// GradStop2.Color = Colors.White;
// GradStop3.Color = Colors.White;
// GradStop4.Color = Colors.White;
// };
// return storyboard;
//}
#endregion
#region Internal Methods
//internal static void CalculateMarkerPosition(DataPoint dataPoint, Double width, Double height, out Double xPosition, out Double yPosition)
//{
// xPosition = Double.NaN;
// yPosition = Double.NaN;
// if (Double.IsNaN(dataPoint.InternalYValue))
// return;
// PlotGroup plotGroup = dataPoint.Parent.PlotGroup;
// Chart chart = dataPoint.Chart as Chart;
// xPosition = Graphics.ValueToPixelPosition(0, width, (Double)plotGroup.AxisX.InternalAxisMinimum, (Double)plotGroup.AxisX.InternalAxisMaximum, dataPoint.InternalXValue);
// yPosition = Graphics.ValueToPixelPosition(height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, dataPoint.InternalYValue);
//}
//internal static Marker CreateMarkerAForLineDataPoint(DataPoint dataPoint, Double width, Double height, ref Canvas line2dLabelCanvas, out Double xPosition, out Double yPosition)
//{
// xPosition = Double.NaN;
// yPosition = Double.NaN;
// if (Double.IsNaN(dataPoint.InternalYValue))
// return null;
// PlotGroup plotGroup = dataPoint.Parent.PlotGroup;
// Chart chart = dataPoint.Chart as Chart;
// xPosition = Graphics.ValueToPixelPosition(0, width, (Double)plotGroup.AxisX.InternalAxisMinimum, (Double)plotGroup.AxisX.InternalAxisMaximum, dataPoint.InternalXValue);
// yPosition = Graphics.ValueToPixelPosition(height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, dataPoint.InternalYValue);
// dataPoint._visualPosition = new Point(xPosition, yPosition);
// // Create Marker
// Marker marker = GetMarkerForDataPoint(true, chart, width, height, yPosition, dataPoint, dataPoint.InternalYValue > 0);
// marker.AddToParent(line2dLabelCanvas, xPosition, yPosition, new Point(0.5, 0.5));
// //Graphics.DrawPointAt(new Point(xPosition, yPosition), line2dLabelCanvas, Colors.Red);
// return marker;
//}
internal static void CreateAstepLineSeries(DataSeries series, Double width, Double height, Canvas labelCanvas, Canvas chartsCanvas, Boolean animationEnabled)
{
Canvas line2dCanvas;
Canvas line2dLabelCanvas;
// Removing exising line chart for a series
if (series.Faces != null)
{
line2dCanvas = series.Faces.Visual as Canvas;
line2dLabelCanvas = series.Faces.LabelCanvas;
if (line2dCanvas != null)
{
Panel parent = line2dCanvas.Parent as Panel;
if (parent != null)
parent.Children.Remove(line2dCanvas);
}
if (line2dLabelCanvas != null)
{
Panel parent = line2dLabelCanvas.Parent as Panel;
if (parent != null)
parent.Children.Remove(line2dLabelCanvas);
}
}
if ((Boolean)series.Enabled == false)
{
return;
}
Double xPosition, yPosition;
Chart chart = (series.Chart as Chart);
line2dLabelCanvas = new Canvas() { Width = width, Height = height }; // Canvas for placing labels
List<List<DataPoint>> pointCollectionList = new List<List<DataPoint>>();
List<List<DataPoint>> shadowPointCollectionList = new List<List<DataPoint>>();
PlotGroup plotGroup = series.PlotGroup;
StepLineChartShapeParams lineParams = new StepLineChartShapeParams();
#region Set LineParms
lineParams.Points = new List<DataPoint>();
lineParams.ShadowPoints = new List<DataPoint>();
lineParams.LineGeometryGroup = new GeometryGroup();
lineParams.LineThickness = (Double)series.LineThickness;
lineParams.LineColor = series.Color;
lineParams.LineStyle = ExtendedGraphics.GetDashArray(series.LineStyle);
lineParams.Lighting = (Boolean)series.LightingEnabled;
lineParams.ShadowEnabled = (Boolean)series.ShadowEnabled;
lineParams.Opacity = series.Opacity;
if ((Boolean)series.ShadowEnabled)
lineParams.LineShadowGeometryGroup = new GeometryGroup();
#endregion
series.VisualParams = lineParams;
Point variableStartPoint = new Point(), endPoint = new Point();
Boolean IsStartPoint = true;
// Polyline polyline, PolylineShadow;
// Canvas line2dCanvas = new Canvas();
// Canvas lineCanvas;
List<DataPoint> viewPortDataPoints = RenderHelper.GetDataPointsUnderViewPort(series, false);
foreach (DataPoint dataPoint in viewPortDataPoints)
{
if (dataPoint.Enabled == false)
continue;
dataPoint.Marker = null;
dataPoint.LabelVisual = null;
dataPoint.Faces = null;
if (Double.IsNaN(dataPoint.InternalYValue))
{
xPosition = Double.NaN;
yPosition = Double.NaN;
IsStartPoint = true;
}
else
{
//CreateMarkerAForLineDataPoint(dataPoint, width, height, ref line2dLabelCanvas, out xPosition, out yPosition);
LineChart.CalculateMarkerPosition(dataPoint, width, height, out xPosition, out yPosition);
#region Generate GeometryGroup for line and line shadow
if (IsStartPoint)
{
variableStartPoint = new Point(xPosition, yPosition);
IsStartPoint = !IsStartPoint;
if (lineParams.Points.Count > 0)
{
pointCollectionList.Add(lineParams.Points);
shadowPointCollectionList.Add(lineParams.ShadowPoints);
}
lineParams.Points = new List<DataPoint>();
lineParams.ShadowPoints = new List<DataPoint>();
}
else
{
endPoint = new Point(xPosition, yPosition);
variableStartPoint = endPoint;
IsStartPoint = false;
}
#endregion Generate GeometryGroup for line and line shadow
dataPoint._visualPosition = new Point(xPosition, yPosition);
lineParams.Points.Add(dataPoint);
if (lineParams.ShadowEnabled)
lineParams.ShadowPoints.Add(dataPoint);
}
}
pointCollectionList.Add(lineParams.Points);
shadowPointCollectionList.Add(lineParams.ShadowPoints);
series.Faces = new Faces();
Path polyline, PolylineShadow;
line2dCanvas = GetStepLine2D(series, width, height, line2dLabelCanvas, lineParams, out polyline, out PolylineShadow, pointCollectionList, shadowPointCollectionList);
line2dCanvas.Width = width;
line2dCanvas.Height = height;
series.Faces.Parts.Add(polyline);
if (!VisifireControl.IsMediaEffectsEnabled)
series.Faces.Parts.Add(PolylineShadow);
labelCanvas.Children.Add(line2dLabelCanvas);
chartsCanvas.Children.Add(line2dCanvas);
series.Faces.Visual = line2dCanvas;
series.Faces.LabelCanvas = line2dLabelCanvas;
// Apply animation
if (animationEnabled)
{
if (series.Storyboard == null)
series.Storyboard = new Storyboard();
else
series.Storyboard.Stop();
// Apply animation to the lines
series.Storyboard = LineChart.ApplyLineChartAnimation(series, line2dCanvas, series.Storyboard, true);
}
// Create Moving Marker
//if (series.MovingMarkerEnabled)
{
Double movingMarkerSize = (Double)series.MarkerSize * (Double)series.MarkerScale * MOVING_MARKER_SCALE;
if (movingMarkerSize < 6)
movingMarkerSize = 6;
Ellipse movingMarker = new Ellipse() { Visibility = Visibility.Collapsed, IsHitTestVisible = false, Height = movingMarkerSize, Width = movingMarkerSize, Fill = lineParams.LineColor };
labelCanvas.Children.Add(movingMarker);
series._movingMarker = movingMarker;
}
//else
//series._movingMarker = null;
}
/// <summary>
/// Apply default interactivity for Marker
/// </summary>
/// <param name="dataPoint">DataPoint</param>
//internal static void ApplyDefaultInteractivityForMarker(DataPoint dataPoint)
//{
// if ((Boolean)dataPoint.MarkerEnabled)
// {
// if (!dataPoint.Parent.MovingMarkerEnabled)
// {
// dataPoint.Marker.MarkerShape.MouseEnter += delegate(object sender, MouseEventArgs e)
// {
// if (!dataPoint.Selected)
// {
// Shape shape = sender as Shape;
// shape.Stroke = new SolidColorBrush(Colors.Red);
// shape.StrokeThickness = dataPoint.Marker.BorderThickness;
// }
// };
// dataPoint.Marker.MarkerShape.MouseLeave += delegate(object sender, MouseEventArgs e)
// {
// if (!dataPoint.Selected)
// {
// Shape shape = sender as Shape;
// shape.Stroke = dataPoint.Marker.BorderColor;
// shape.StrokeThickness = dataPoint.Marker.BorderThickness;
// }
// };
// }
// }
// else
// {
// HideDataPointMarker(dataPoint);
// }
//}
/// <summary>
/// Hides a DataPoint Marker
/// </summary>
/// <param name="dataPoint"></param>
//internal static void HideDataPointMarker(DataPoint dataPoint)
//{
// Brush tarnsparentColor = new SolidColorBrush(Colors.Transparent);
// dataPoint.Marker.MarkerShape.Fill = tarnsparentColor;
// SolidColorBrush stroke = dataPoint.Marker.MarkerShape.Stroke as SolidColorBrush;
// if (!(stroke != null && stroke.Color.ToString().Equals(tarnsparentColor.ToString())))
// dataPoint.Marker.MarkerShape.Stroke = tarnsparentColor;
// if (dataPoint.Marker.MarkerShadow != null)
// dataPoint.Marker.MarkerShadow.Visibility = Visibility.Collapsed;
// if (dataPoint.Marker.BevelLayer != null)
// dataPoint.Marker.BevelLayer.Visibility = Visibility.Collapsed;
//}
/// <summary>
/// Hides a DataPoint Marker
/// </summary>
/// <param name="dataPoint"></param>
//internal static void ShowDataPointMarker(DataPoint dataPoint)
//{
// if (dataPoint.MarkerColor != null)
// dataPoint.Marker.MarkerShape.Fill = dataPoint.MarkerColor;
// if (dataPoint.MarkerBorderColor != null)
// dataPoint.Marker.MarkerShape.Stroke = dataPoint.MarkerBorderColor;
// else
// dataPoint.Marker.MarkerShape.Stroke = dataPoint.Color;
// if (dataPoint.Marker.MarkerShadow != null)
// dataPoint.Marker.MarkerShadow.Visibility = Visibility.Visible;
// if (dataPoint.Marker.BevelLayer != null)
// dataPoint.Marker.BevelLayer.Visibility = Visibility.Visible;
//}
/// <summary>
/// Create line in 2D and place inside a canvas
/// </summary>
/// <param name="lineParams">Line parameters</param>
/// <param name="line">line path reference</param>
/// <param name="lineShadow">line shadow path reference</param>
/// <returns>Canvas</returns>
private static Canvas GetStepLine2D(DataSeries tagReference, Double width, Double height, Canvas line2dLabelCanvas, StepLineChartShapeParams lineParams, out Path line, out Path lineShadow, List<List<DataPoint>> pointCollectionList, List<List<DataPoint>> shadowPointCollectionList)
{
Canvas visual = new Canvas();
line = new Path() { Tag = new ElementData() { Element = tagReference } };
line.StrokeLineJoin = PenLineJoin.Round;
line.StrokeStartLineCap = PenLineCap.Round;
line.StrokeEndLineCap = PenLineCap.Round;
line.Stroke = lineParams.Lighting ? Graphics.GetLightingEnabledBrush(lineParams.LineColor, "Linear", new Double[] { 0.65, 0.55 }) : lineParams.LineColor;
line.StrokeThickness = lineParams.LineThickness;
line.StrokeDashArray = lineParams.LineStyle;
line.Opacity = lineParams.Opacity;
line.Data = GetPathGeometry(null, pointCollectionList, false, width, height, line2dLabelCanvas);
if (lineParams.ShadowEnabled)
{
if (!VisifireControl.IsMediaEffectsEnabled)
{
lineShadow = new Path() { IsHitTestVisible = false };
lineShadow.Stroke = Graphics.GetLightingEnabledBrush(new SolidColorBrush(Colors.LightGray), "Linear", new Double[] { 0.65, 0.55 });
lineShadow.StrokeStartLineCap = PenLineCap.Round;
lineShadow.StrokeEndLineCap = PenLineCap.Round;
lineShadow.StrokeLineJoin = PenLineJoin.Round;
lineShadow.StrokeThickness = lineParams.LineThickness;
lineShadow.Opacity = 0.5;
if (lineParams.ShadowEnabled)
lineShadow.Data = GetPathGeometry(null, shadowPointCollectionList, true, width, height, null);
TranslateTransform tt = new TranslateTransform() { X = 2, Y = 2 };
lineShadow.RenderTransform = tt;
visual.Children.Add(lineShadow);
}
else
{
#if !WP
visual.Effect = ExtendedGraphics.GetShadowEffect(315, 2.5, 1);
#endif
lineShadow = null;
}
}
else
lineShadow = null;
//lineShadow = null;
visual.Children.Add(line);
return visual;
}