/// <summary>
/// Updates the gridlines.
/// </summary>
/// <param name="axis">The Relevant Axis</param>
/// <param name="linesRecycler">The Line Recycler</param>
/// <param name="requiredLinescount">The Required Lines Count</param>
/// <param name="isMajor">Check For Marjor Axis</param>
/// <param name="checkOrginFlag">Check For Origin Flag</param>
private static void UpdateGridlines(ChartAxis axis, UIElementsRecycler <Line> linesRecycler, int requiredLinescount, bool isMajor, bool checkOrginFlag)
{
if (linesRecycler == null || axis == null)
{
return;
}
foreach (var line in linesRecycler)
{
line.ClearValue(FrameworkElement.StyleProperty);
}
int totalLinesCount = requiredLinescount;
if (axis.ShowOrigin && checkOrginFlag)
{
totalLinesCount += 1;
}
if (!linesRecycler.BindingProvider.Keys.Contains(FrameworkElement.StyleProperty))
{
linesRecycler.BindingProvider.Add(FrameworkElement.StyleProperty, GetGridLineBinding(axis, isMajor));
}
if (linesRecycler.Count > 0)
{
foreach (var line in linesRecycler)
{
line.SetBinding(FrameworkElement.StyleProperty, GetGridLineBinding(axis, isMajor));
}
}
linesRecycler.GenerateElements(totalLinesCount);
var rangeStyles = axis.RangeStyles;
if (rangeStyles != null && rangeStyles.Count > 0)
{
var values = !isMajor ? axis.SmallTickPoints :
(from label in axis.VisibleLabels select label.Position).ToList();
for (int i = 0; i < values.Count; i++)
{
foreach (var chartAxisRangeStyle in rangeStyles)
{
var range = chartAxisRangeStyle.Range;
var style = isMajor ? chartAxisRangeStyle.MajorGridLineStyle : chartAxisRangeStyle.MinorGridLineStyle;
if (range.Start <= values[i] && range.End >= values[i] && style != null)
{
linesRecycler[i].SetBinding(FrameworkElement.StyleProperty, GetGridLineBinding(chartAxisRangeStyle, isMajor));
break;
}
}
}
}
//StrokeDashArray applied only for the first line element when it is applied through style.
//It is bug in the framework.
//And hence manually setting stroke dash array for each and every grid line.
ChartExtensionUtils.SetStrokeDashArray(linesRecycler);
}
/// <summary>
/// Called when [series mouse up].
/// </summary>
/// <param name="source">The source.</param>
/// <param name="position">The position.</param>
protected internal override void OnSeriesMouseUp(object source, Point position)
{
var element = source as FrameworkElement;
var segment = element != null ? element.Tag as ChartSegment : null;
var newIndex = -1;
if (this.ExplodeOnMouseClick && this.mouseUnderSegment == segment && this.allowExplode)
{
if (segment != null)
{
newIndex = (segment as PieSegment3D).Index;
}
else if (Adornments.Count > 0)
{
newIndex = ChartExtensionUtils.GetAdornmentIndex(source);
}
var oldIndex = ExplodeIndex;
if (newIndex != oldIndex)
{
this.ExplodeIndex = newIndex;
}
else if (this.ExplodeIndex >= 0)
{
this.ExplodeIndex = -1;
}
this.allowExplode = false;
}
base.OnSeriesMouseUp(source, position);
}
private static void CalculateNearestIndex(ref int minimum, ref int maximum, List <double> xValues, double startX, double endX)
{
minimum = ChartExtensionUtils.BinarySearch(xValues, startX, 0, maximum);
maximum = ChartExtensionUtils.BinarySearch(xValues, endX, 0, maximum);
minimum = startX <= xValues[minimum] ? minimum : minimum + 1;
maximum = endX >= xValues[maximum] ? maximum : maximum - 1;
}
private void SetScatterDraggingSegment(FrameworkElement frameworkElement, ref bool isAdornment)
{
// Empty point support only given for the interior case and not for symbol case.
if (frameworkElement.Tag is EmptyPointSegment || frameworkElement.DataContext is EmptyPointSegment)
{
return;
}
if (frameworkElement.Tag is ScatterSegment || frameworkElement.DataContext is ScatterSegment)
{
draggingSegment = GetDraggingSegment(frameworkElement) as ScatterSegment;
if (ActualXAxis is CategoryAxis && !(ActualXAxis as CategoryAxis).IsIndexed)
{
SegmentIndex = ActualData.IndexOf(draggingSegment.Item);
}
else
{
SegmentIndex = Segments.IndexOf(draggingSegment);
}
}
else
{
isAdornment = true;
// Get the selected adornment index and select the adornment marker
SegmentIndex = ChartExtensionUtils.GetAdornmentIndex(frameworkElement);
if (SegmentIndex > -1)
{
draggingSegment = Segments[SegmentIndex] as ScatterSegment;
}
}
}
internal override void UpdateTooltip(object originalSource)
{
if (ShowTooltip)
{
ChartDataPointInfo dataPoint = new ChartDataPointInfo();
int index = ChartExtensionUtils.GetAdornmentIndex(originalSource);
if (index > -1)
{
dataPoint.Index = index;
if (xValues.Count > index)
{
dataPoint.XData = xValues[index];
}
if (ActualXAxis is CategoryAxis && !(ActualXAxis as CategoryAxis).IsIndexed &&
GroupedSeriesYValues[0].Count > index)
{
dataPoint.YData = GroupedSeriesYValues[0][index];
}
else if (YValues.Count > index)
{
dataPoint.YData = YValues[index];
}
dataPoint.Series = this;
if (ActualData.Count > index)
{
dataPoint.Item = ActualData[index];
}
UpdateSeriesTooltip(dataPoint);
}
}
}
protected internal override void OnSeriesMouseUp(object source, Point position)
{
var element = source as FrameworkElement;
var segment = element != null ? element.Tag as ChartSegment : null;
int index = -1;
if (ExplodeOnMouseClick && allowExplode && mouseUnderSegment == segment)
{
if (segment != null && segment.Series is AccumulationSeriesBase)
{
index = segment.Series is CircularSeriesBase && !double.IsNaN(((CircularSeriesBase)segment.Series).GroupTo) ? Segments.IndexOf(segment) : ActualData.IndexOf(segment.Item);
}
else if (Adornments.Count > 0)
{
index = ChartExtensionUtils.GetAdornmentIndex(source);
}
var newIndex = index;
var oldIndex = ExplodeIndex;
if (newIndex != oldIndex)
{
ExplodeIndex = newIndex;
}
else if (ExplodeIndex >= 0)
{
ExplodeIndex = -1;
}
allowExplode = false;
}
}
/// <summary>
/// Method used to get the bool value for series or segment has dragging base.
/// </summary>
private bool IsDraggableSeries(ChartSeriesBase chartSeries)
{
if (ChartExtensionUtils.IsDraggable(chartSeries))
{
ChangeSelectionCursor(false);
return(true);
}
else
{
return(false);
}
}
protected override void OnPointerMoved(PointerRoutedEventArgs e)
{
if (ShowTooltip)
{
Canvas canvas = ActualArea.GetAdorningCanvas();
mousePos = e.GetCurrentPoint(canvas).Position;
ChartDataPointInfo dataPoint = new ChartDataPointInfo();
int index = ChartExtensionUtils.GetAdornmentIndex(e.OriginalSource);
if (index > -1)
{
if (ActualXAxis is CategoryAxis && !(ActualXAxis as CategoryAxis).IsIndexed)
{
if (xValues.Count > index)
{
dataPoint.XData = GroupedXValuesIndexes[index];
}
if (GroupedSeriesYValues[0].Count > index)
{
dataPoint.YData = GroupedSeriesYValues[0][index];
}
dataPoint.Index = index;
dataPoint.Series = this;
if (ActualData.Count > index)
{
dataPoint.Item = GroupedActualData[index];
}
}
else
{
if (xValues.Count > index)
{
dataPoint.XData = xValues[index];
}
if (YValues.Count > index)
{
dataPoint.YData = YValues[index];
}
dataPoint.Index = index;
dataPoint.Series = this;
if (ActualData.Count > index)
{
dataPoint.Item = ActualData[index];
}
}
UpdateSeriesTooltip(dataPoint);
}
}
}
internal void UpdateTrackInterior(int segmentIndex)
{
if (parentSeries.TrackColor != null)
{
this.TrackColor = parentSeries.TrackColor;
this.TrackOpacity = 1;
}
else
{
this.TrackColor = ChartExtensionUtils.GetInterior(parentSeries, segmentIndex);
this.TrackOpacity = 0.2;
}
}
internal override void UpdateTooltip(object originalSource)
{
if (ShowTooltip)
{
FrameworkElement element = originalSource as FrameworkElement;
object chartSegment = null;
int index = -1;
if (element != null)
{
if (element.Tag is ChartSegment)
{
chartSegment = element.Tag;
}
else if (Segments.Count > 0)
{
chartSegment = Segments[0];
}
else
{
// WPF-28526- Tooltip not shown when set the single data point with adornments for continuous series.
index = ChartExtensionUtils.GetAdornmentIndex(element);
chartSegment = index != -1 ? new StackingAreaSegment() : null;
}
}
if (chartSegment == null)
{
return;
}
SetTooltipDuration();
var canvas = this.Area.GetAdorningCanvas();
double xVal = 0;
double yVal = 0;
double stackedYValue = double.NaN;
object data = null;
index = 0;
if (this.Area.SeriesClipRect.Contains(mousePos))
{
var point = new Point(
mousePos.X - this.Area.SeriesClipRect.Left,
mousePos.Y - this.Area.SeriesClipRect.Top);
this.FindNearestChartPoint(point, out xVal, out yVal, out stackedYValue);
if (double.IsNaN(xVal))
{
return;
}
if (ActualXAxis is CategoryAxis && (ActualXAxis as CategoryAxis).IsIndexed)
{
index = YValues.IndexOf(yVal);
}
else
{
index = this.GetXValues().IndexOf(xVal);
}
foreach (var series in Area.Series)
{
if (series == this)
{
data = this.ActualData[index];
}
}
}
if (data == null)
{
return; // To ignore tooltip when mousePos is not inside the SeriesClipRect.
}
if (this.Area.Tooltip == null)
{
this.Area.Tooltip = new ChartTooltip();
}
var chartTooltip = this.Area.Tooltip as ChartTooltip;
var stackingAreaSegment = chartSegment as StackingAreaSegment;
stackingAreaSegment.Item = data;
stackingAreaSegment.XData = xVal;
stackingAreaSegment.YData = yVal;
if (chartTooltip != null)
{
if (canvas.Children.Count == 0 || (canvas.Children.Count > 0 && !IsTooltipAvailable(canvas)))
{
chartTooltip.Content = chartSegment;
if (chartTooltip.Content == null)
{
return;
}
if (ChartTooltip.GetInitialShowDelay(this) == 0)
{
canvas.Children.Add(chartTooltip);
}
chartTooltip.ContentTemplate = this.GetTooltipTemplate();
AddTooltip();
if (ChartTooltip.GetEnableAnimation(this))
{
SetDoubleAnimation(chartTooltip);
storyBoard.Children.Add(leftDoubleAnimation);
storyBoard.Children.Add(topDoubleAnimation);
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
_stopwatch.Start();
}
else
{
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
_stopwatch.Start();
}
}
else
{
foreach (var child in canvas.Children)
{
var tooltip = child as ChartTooltip;
if (tooltip != null)
{
chartTooltip = tooltip;
}
}
chartTooltip.Content = chartSegment;
if (chartTooltip.Content == null)
{
RemoveTooltip();
return;
}
AddTooltip();
#if NETFX_CORE
if (_stopwatch.ElapsedMilliseconds > 100)
{
#endif
if (ChartTooltip.GetEnableAnimation(this))
{
_stopwatch.Restart();
if (leftDoubleAnimation == null || topDoubleAnimation == null || storyBoard == null)
{
SetDoubleAnimation(chartTooltip);
}
else
{
leftDoubleAnimation.To = chartTooltip.LeftOffset;
topDoubleAnimation.To = chartTooltip.TopOffset;
storyBoard.Begin();
}
}
else
{
_stopwatch.Restart();
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
}
#if NETFX_CORE
}
else if (EnableAnimation == false)
{
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
}
#endif
}
}
}
}
private object CalculateDateTimeIntervalType(DoubleRange actualRange, Size availableSize, ref DateTimeIntervalType dateTimeIntervalType)
{
var dateTimeMin = ChartExtensionUtils.FromOADate(actualRange.Start);
var dateTimeMax = ChartExtensionUtils.FromOADate(actualRange.End);
var timeSpan = dateTimeMax.Subtract(dateTimeMin);
double interval = 0;
switch (dateTimeIntervalType)
{
case DateTimeIntervalType.Years:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalDays / 365), availableSize);
break;
case DateTimeIntervalType.Months:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalDays / 30), availableSize);
break;
case DateTimeIntervalType.Days:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalDays), availableSize);
break;
case DateTimeIntervalType.Hours:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalHours), availableSize);
break;
case DateTimeIntervalType.Minutes:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalMinutes), availableSize);
break;
case DateTimeIntervalType.Seconds:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalSeconds), availableSize);
break;
case DateTimeIntervalType.Milliseconds:
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalMilliseconds), availableSize);
break;
case DateTimeIntervalType.Auto:
var range = new DoubleRange(0, timeSpan.TotalDays / 365);
interval = base.CalculateNiceInterval(range, availableSize);
if (interval >= 1)
{
dateTimeIntervalType = DateTimeIntervalType.Years;
return(interval);
}
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalDays / 30), availableSize);
if (interval >= 1)
{
dateTimeIntervalType = DateTimeIntervalType.Months;
return(interval);
}
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalDays), availableSize);
if (interval >= 1)
{
dateTimeIntervalType = DateTimeIntervalType.Days;
return(interval);
}
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalHours), availableSize);
if (interval >= 1)
{
dateTimeIntervalType = DateTimeIntervalType.Hours;
return(interval);
}
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalMinutes), availableSize);
if (interval >= 1)
{
dateTimeIntervalType = DateTimeIntervalType.Minutes;
return(interval);
}
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalSeconds), availableSize);
if (interval >= 1)
{
dateTimeIntervalType = DateTimeIntervalType.Seconds;
return(interval);
}
interval = base.CalculateNiceInterval(new DoubleRange(0, timeSpan.TotalMilliseconds), availableSize);
dateTimeIntervalType = DateTimeIntervalType.Milliseconds;
break;
}
return(interval);
}
/// <summary>
/// Modifies the source data before passing it to the target for display in the UI.
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="language"></param>
/// <returns></returns>
public object Convert(object value, Type targetType, object parameter, string language)
{
int index = int.Parse(parameter.ToString());
return(ChartExtensionUtils.GetInterior(series, index));
}
protected override void OnPointerMoved(PointerRoutedEventArgs e)
{
if (ShowTooltip)
{
Canvas canvas = ActualArea.GetAdorningCanvas();
mousePos = e.GetCurrentPoint(canvas).Position;
ChartDataPointInfo dataPoint = new ChartDataPointInfo();
int index = ChartExtensionUtils.GetAdornmentIndex(e.OriginalSource);
if (index > -1)
{
if ((ActualXAxis is CategoryAxis) && (!(ActualXAxis as CategoryAxis).IsIndexed))
{
if (GroupedSeriesYValues[0].Count > index)
{
dataPoint.High = GroupedSeriesYValues[0][index];
}
if (GroupedSeriesYValues[1].Count > index)
{
dataPoint.Low = GroupedSeriesYValues[1][index];
}
if (GroupedSeriesYValues[2].Count > index)
{
dataPoint.Open = GroupedSeriesYValues[2][index];
}
if (GroupedSeriesYValues[3].Count > index)
{
dataPoint.Close = GroupedSeriesYValues[3][index];
}
}
else
{
if (ActualSeriesYValues[0].Count > index)
{
dataPoint.High = ActualSeriesYValues[0][index];
}
if (ActualSeriesYValues[1].Count > index)
{
dataPoint.Low = ActualSeriesYValues[1][index];
}
if (ActualSeriesYValues[2].Count > index)
{
dataPoint.Open = ActualSeriesYValues[2][index];
}
if (ActualSeriesYValues[3].Count > index)
{
dataPoint.Close = ActualSeriesYValues[3][index];
}
}
dataPoint.Index = index;
dataPoint.Series = this;
if (ActualData.Count > index)
{
dataPoint.Item = ActualData[index];
}
UpdateSeriesTooltip(dataPoint);
}
}
}
protected internal override void OnPointerMoved(PointerRoutedEventArgs e)
{
if (ChartArea == null)
{
return;
}
if (this.EnableSegmentSelection || this.EnableSeriesSelection)
{
FrameworkElement element = e.OriginalSource as FrameworkElement;
ChartSegment segment = null;
if (element != null)
{
if (element.Tag != null)
{
segment = element.Tag as ChartSegment;
}
}
if (segment is TrendlineSegment)
{
return;
}
if (element.DataContext is LegendItem)
{
return;
}
#if __IOS__ || __ANDROID__
var image = (element as Border)?.Child as Image;
#else
var image = element as Image;
#endif
if (segment != null && segment.Series is ISegmentSelectable && !(segment.Item is Trendline))
{
// Scatter series supports selection and dragging at the same time.
if (!(segment.Series is ScatterSeries) && IsDraggableSeries(segment.Series))
{
return;
}
if (!segment.Series.IsLinear || EnableSeriesSelection)
{
ChangeSelectionCursor(true);
}
else
{
ChangeSelectionCursor(false);
}
if (SelectionMode == Charts.SelectionMode.MouseMove)
{
if (!segment.Series.IsSideBySide && segment.Series is CartesianSeries &&
!(segment.Series is ScatterSeries) && !(segment.Series is BubbleSeries))
{
Point canvasPoint = e.GetCurrentPoint(segment.Series.ActualArea.GetAdorningCanvas()).Position;
ChartDataPointInfo data = (segment.Series as ChartSeries).GetDataPoint(canvasPoint);
OnMouseMoveSelection(segment.Series, data);
}
else
{
int segIndex = segment.Series is CircularSeriesBase && !double.IsNaN(((CircularSeriesBase)segment.Series).GroupTo) ?segment.Series.Segments.IndexOf(segment): segment.Series.ActualData.IndexOf(segment.Item);
OnMouseMoveSelection(segment.Series, segIndex);
}
}
}
else if (e.OriginalSource is Shape && (e.OriginalSource as Shape).DataContext is ChartAdornmentContainer &&
((e.OriginalSource as Shape).DataContext as ChartAdornmentContainer).Tag is int)
{
// Check the selected element is adornment shape
selectedAdornmentPresenter = VisualTreeHelper.GetParent((e.OriginalSource as Shape).DataContext
as ChartAdornmentContainer) as ChartAdornmentPresenter;
if (IsDraggableSeries(selectedAdornmentPresenter.Series))
{
return;
}
ChangeSelectionCursor(true);
if (SelectionMode == Charts.SelectionMode.MouseMove)
{
index = (int)((e.OriginalSource as Shape).DataContext as ChartAdornmentContainer).Tag;
if (selectedAdornmentPresenter != null && selectedAdornmentPresenter.Series is ISegmentSelectable)
{
OnMouseMoveSelection(selectedAdornmentPresenter.Series, index);
}
}
}
else if (image != null && image.Source is WriteableBitmap)
{
GetBitmapSeriesCollection(element, e);
// Bitmap segment selection process handling.
if (SelectionMode == Charts.SelectionMode.MouseMove)
{
OnBitmapSeriesMouseMoveSelection(element, e);
}
}
else if (element is Border || element is TextBlock || element is Shape) // check the selected element is adornment label
{
ChangeSelectionCursor(false);
FrameworkElement frameworkElement = e.OriginalSource as FrameworkElement;
int count = e.OriginalSource is TextBlock ? 3 : 2;
for (int i = 0; i < count; i++)
{
if (frameworkElement != null)
{
frameworkElement = VisualTreeHelper.GetParent(frameworkElement) as FrameworkElement;
}
else
{
break;
}
}
if (frameworkElement is ContentPresenter)
{
index = ChartExtensionUtils.GetAdornmentIndex(frameworkElement);
if (index != -1)
{
ChangeSelectionCursor(true);
}
if (SelectionMode == Charts.SelectionMode.MouseMove)
{
frameworkElement = VisualTreeHelper.GetParent(frameworkElement) as FrameworkElement;
if (frameworkElement is ChartAdornmentPresenter || frameworkElement is ChartAdornmentContainer)
{
while (!(frameworkElement is ChartAdornmentPresenter) && frameworkElement != null)
{
frameworkElement = VisualTreeHelper.GetParent(frameworkElement) as FrameworkElement;
}
selectedAdornmentPresenter = frameworkElement as ChartAdornmentPresenter;
if (IsDraggableSeries(selectedAdornmentPresenter.Series))
{
return;
}
if (selectedAdornmentPresenter != null && selectedAdornmentPresenter.Series is ISegmentSelectable)
{
OnMouseMoveSelection(selectedAdornmentPresenter.Series, index);
}
}
}
}
var contentControl = frameworkElement as ContentControl;
if (contentControl != null && contentControl.Tag is int)
{
ChangeSelectionCursor(true);
if (SelectionMode == Charts.SelectionMode.MouseMove)
{
index = (int)contentControl.Tag;
frameworkElement = VisualTreeHelper.GetParent(frameworkElement) as FrameworkElement;
var chartAdornmentPresenter = frameworkElement as ChartAdornmentPresenter;
if (chartAdornmentPresenter != null)
{
selectedAdornmentPresenter = chartAdornmentPresenter;
if (IsDraggableSeries(selectedAdornmentPresenter.Series))
{
return;
}
if (selectedAdornmentPresenter != null && selectedAdornmentPresenter.Series is ISegmentSelectable)
{
OnMouseMoveSelection(selectedAdornmentPresenter.Series, index);
}
}
}
}
}
else if (ChartArea.PreviousSelectedSeries != null && ChartArea.CurrentSelectedSeries != null && SelectionMode == Charts.SelectionMode.MouseMove &&
ChartArea.VisibleSeries.Contains(ChartArea.PreviousSelectedSeries))
{
ChangeSelectionCursor(false);
bool isCancel;
if (EnableSeriesSelection)
{
isCancel = ChartArea.CurrentSelectedSeries.RaiseSelectionChanging(-1, ChartArea.SeriesSelectedIndex);
}
else
{
isCancel = ChartArea.CurrentSelectedSeries.RaiseSelectionChanging(
-1,
(ChartArea.CurrentSelectedSeries as ISegmentSelectable).SelectedIndex);
}
if (!isCancel)
{
Deselect();
}
}
else
{
ChangeSelectionCursor(false);
}
}
else
{
ChangeSelectionCursor(false);
}
}
/// <summary>
/// Called when Pointer Released in Chart
/// </summary>
/// <param name="e"></param>
protected internal override void OnPointerReleased(PointerRoutedEventArgs e)
{
if (ChartArea == null)
{
return;
}
if (SelectionMode == Charts.SelectionMode.MouseClick)
{
FrameworkElement element = e.OriginalSource as FrameworkElement;
ChartSegment segment = null;
ChartArea.CurrentSelectedSeries = null;
if (element != null)
{
if (element.Tag != null)
{
segment = element.Tag as ChartSegment;
}
}
if (segment is TrendlineSegment)
{
return;
}
#if __IOS__ || __ANDROID__
var image = (element as Border)?.Child as Image;
#else
var image = element as Image;
#endif
if (image != null && image.Source is WriteableBitmap)
{
// Bitmap segment selection process handling.
OnBitmapSeriesMouseDownSelection(element, e);
}
else if (segment != null && segment == mouseUnderSegment && segment.Series is ISegmentSelectable &&
!(segment.Item is Trendline))
{
if (!segment.Series.IsSideBySide && segment.Series is CartesianSeries &&
!(segment.Series is ScatterSeries) && !(segment.Series is BubbleSeries))
{
Point canvasPoint = e.GetCurrentPoint(segment.Series.ActualArea.GetAdorningCanvas()).Position;
ChartDataPointInfo data = (segment.Series as ChartSeries).GetDataPoint(canvasPoint);
OnMouseDownSelection(segment.Series, data);
}
else
{
int index = -1;
if ((segment.Series.ActualXAxis is CategoryAxis) && !(segment.Series.ActualXAxis as CategoryAxis).IsIndexed &&
segment.Series.IsSideBySide && !(segment.Series is FinancialSeriesBase) && (!(segment.Series is RangeSeriesBase)) &&
!(segment.Series is WaterfallSeries))
{
index = segment.Series.GroupedActualData.IndexOf(segment.Item);
}
else
{
index = segment.Series is CircularSeriesBase && !double.IsNaN(((CircularSeriesBase)segment.Series).GroupTo)? segment.Series.Segments.IndexOf(segment): segment.Series.ActualData.IndexOf(segment.Item);
}
OnMouseDownSelection(segment.Series, index);
}
}
else
{
// Get the selected adornment index and select the adornment marker
index = ChartExtensionUtils.GetAdornmentIndex(element);
FrameworkElement frameworkElement = e.OriginalSource as FrameworkElement;
var chartAdornmentPresenter = frameworkElement as ChartAdornmentPresenter;
while (frameworkElement != null && chartAdornmentPresenter == null)
{
frameworkElement = VisualTreeHelper.GetParent(frameworkElement) as FrameworkElement;
chartAdornmentPresenter = frameworkElement as ChartAdornmentPresenter;
}
if (chartAdornmentPresenter != null &&
chartAdornmentPresenter.Series is ISegmentSelectable)
{
OnMouseDownSelection(chartAdornmentPresenter.Series, index);
}
}
if (selectedAdornmentPresenter != null)
{
selectedAdornmentPresenter = null;
}
}
AdorningCanvas.ReleasePointerCapture(e.Pointer);
}
internal override void UpdateTooltip(object originalSource)
{
if (ShowTooltip)
{
FrameworkElement element = originalSource as FrameworkElement;
object chartSegment = null;
if (element != null)
{
if (element.Tag is ChartSegment)
{
chartSegment = element.Tag;
}
else if (element.DataContext is ChartSegment && !(element.DataContext is ChartAdornment))
{
chartSegment = element.DataContext;
}
else
{
int index = ChartExtensionUtils.GetAdornmentIndex(element);
if (index != -1)
{
if (index < Segments.Count)
{
chartSegment = Segments[index];
}
else if (Segments.Count > 0)
{
chartSegment = Segments[index - 1];
}
else if (index < Adornments.Count)
{
// WPF-28526- Tooltip not shown when set the single data point with adornments for continuous series.
ChartAdornment adornment = Adornments[index];
chartSegment = new StepLineSegment()
{
X1Value = adornment.XData,
Y1Value = adornment.YData,
X1Data = adornment.XData,
Y1Data = adornment.YData,
X1 = adornment.XData,
Y1 = adornment.YData,
XData = adornment.XData,
YData = adornment.YData,
Item = adornment.Item
};
}
}
}
}
if (chartSegment == null)
{
return;
}
SetTooltipDuration();
var canvas = this.Area.GetAdorningCanvas();
if (this.Area.Tooltip == null)
{
this.Area.Tooltip = new ChartTooltip();
}
var chartTooltip = this.Area.Tooltip as ChartTooltip;
if (chartTooltip != null)
{
var lineSegment = chartSegment as StepLineSegment;
if (canvas.Children.Count == 0 || (canvas.Children.Count > 0 && !IsTooltipAvailable(canvas)))
{
SetTooltipSegmentItem(lineSegment);
chartTooltip.Content = chartSegment;
if (ChartTooltip.GetInitialShowDelay(this) == 0)
{
canvas.Children.Add(chartTooltip);
}
chartTooltip.ContentTemplate = this.GetTooltipTemplate();
AddTooltip();
if (ChartTooltip.GetEnableAnimation(this))
{
SetDoubleAnimation(chartTooltip);
storyBoard.Children.Add(leftDoubleAnimation);
storyBoard.Children.Add(topDoubleAnimation);
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
_stopwatch.Start();
}
else
{
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
_stopwatch.Start();
}
}
else
{
foreach (var child in canvas.Children)
{
var tooltip = child as ChartTooltip;
if (tooltip != null)
{
chartTooltip = tooltip;
}
}
SetTooltipSegmentItem(lineSegment);
chartTooltip.Content = chartSegment;
chartTooltip.ContentTemplate = this.GetTooltipTemplate();
AddTooltip();
#if NETFX_CORE
if (_stopwatch.ElapsedMilliseconds > 100)
{
#endif
if (ChartTooltip.GetEnableAnimation(this))
{
_stopwatch.Restart();
if (leftDoubleAnimation == null || topDoubleAnimation == null || storyBoard == null)
{
SetDoubleAnimation(chartTooltip);
}
else
{
leftDoubleAnimation.To = chartTooltip.LeftOffset;
topDoubleAnimation.To = chartTooltip.TopOffset;
storyBoard.Begin();
}
}
else
{
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
}
#if NETFX_CORE
}
else if (EnableAnimation == false)
{
Canvas.SetLeft(chartTooltip, chartTooltip.LeftOffset);
Canvas.SetTop(chartTooltip, chartTooltip.TopOffset);
}
#endif
}
}
}
}
