private int GetSegmentMousePosition(RangeColumnSegment rangeColumnSegment, Point mousePos)
{
var high = rangeColumnSegment.High;
var low = rangeColumnSegment.Low;
var currentValue = Area.PointToValue(ActualYAxis, mousePos);
var diffPercentValue = (Math.Abs(high - low) * 25 / 100);
if (low < high)
{
var finalHigh = high - diffPercentValue;
var finalLow = low + diffPercentValue;
if (currentValue > finalHigh && high > currentValue)
{
return(1);
}
if (currentValue < finalLow && currentValue > low)
{
return(2);
}
return(3);
}
else
{
var finalHigh = high + diffPercentValue;
var finalLow = low - diffPercentValue;
if (currentValue < finalHigh && high < currentValue)
{
return(1);
}
if (currentValue > finalLow && currentValue < low)
{
return(2);
}
return(3);
}
}
private void ActivateDragging(Point mousePos, object element)
{
try
{
if (previewRect != null)
{
return;
}
var rectangle = element as Rectangle;
if (rectangle == null || !EnableSegmentDragging)
{
return;
}
var rangeColumnSegment = rectangle.Tag as RangeColumnSegment;
if (rangeColumnSegment == null)
{
return;
}
initialHeight = Canvas.GetTop(rectangle);
var brush = rectangle.Fill as SolidColorBrush;
previewRect = new Rectangle
{
Fill = brush != null
? new SolidColorBrush(
Color.FromArgb(
brush.Color.A,
(byte)(brush.Color.R * 0.6),
(byte)(brush.Color.G * 0.6),
(byte)(brush.Color.B * 0.6)))
: rectangle.Fill,
Opacity = 0.5,
Stroke = rectangle.Stroke,
StrokeThickness = rectangle.StrokeThickness
};
previewRect.SetValue(Canvas.LeftProperty, Canvas.GetLeft(rectangle));
previewRect.SetValue(Canvas.TopProperty, initialHeight);
previewRect.Height = rectangle.ActualHeight;
previewRect.Width = rectangle.ActualWidth;
SeriesPanel.Children.Add(previewRect);
SegmentIndex = Segments.IndexOf(rectangle.Tag as ChartSegment);
draggingMode = GetSegmentMousePosition(rangeColumnSegment, mousePos);
selectedSegment = rangeColumnSegment;
initialHeight = IsActualTransposed ? mousePos.X : mousePos.Y;
initialValue = Area.PointToValue(ActualYAxis, mousePos);
var dragEventArgs = new ChartDragStartEventArgs
{
BaseXValue = GetActualXValue(SegmentIndex)
};
RaiseDragStart(dragEventArgs);
if (dragEventArgs.Cancel)
{
ResetDraggingElements("Cancel", true);
}
#if NETFX_CORE
Focus(FocusState.Keyboard);
#endif
UnHoldPanning(false);
}
catch
{
ResetDraggingElements("Exception", true);
}
}
/// <summary>
/// Creates the segments of RangeColumn Series.
/// </summary>
public override void CreateSegments()
{
double x1, x2, y1, y2;
List <double> xValues = null;
bool isGrouping = this.ActualXAxis is CategoryAxis && !(this.ActualXAxis as CategoryAxis).IsIndexed;
if (isGrouping)
{
xValues = GroupedXValuesIndexes;
}
else
{
xValues = GetXValues();
}
if (xValues != null)
{
DoubleRange sbsInfo = this.GetSideBySideInfo(this);
if (isGrouping)
{
Segments.Clear();
Adornments.Clear();
for (int i = 0; i < this.DataCount; i++)
{
if (i < xValues.Count && GroupedSeriesYValues[0].Count > i)
{
x1 = xValues[i] + sbsInfo.Start;
x2 = xValues[i] + sbsInfo.End;
y1 = GroupedSeriesYValues[0][i];
y2 = IsMultipleYPathRequired ? GroupedSeriesYValues[1][i] : 0;
RangeColumnSegment rangeColumn = new RangeColumnSegment(x1, y1, x2, y2, this, ActualData[i]);
rangeColumn.High = GroupedSeriesYValues[0][i];
rangeColumn.Low = IsMultipleYPathRequired ? GroupedSeriesYValues[1][i] : 0;
Segments.Add(rangeColumn);
if (AdornmentsInfo != null)
{
AddAdornments(xValues[i], sbsInfo.Start + sbsInfo.Delta / 2, y1, y2, i);
}
}
}
}
else
{
if (Segments.Count > this.DataCount)
{
ClearUnUsedSegments(this.DataCount);
}
if (AdornmentsInfo != null)
{
if (AdornmentsInfo.AdornmentsPosition == AdornmentsPosition.TopAndBottom)
{
ClearUnUsedAdornments(this.DataCount * 2);
}
else
{
ClearUnUsedAdornments(this.DataCount);
}
}
for (int i = 0; i < this.DataCount; i++)
{
x1 = xValues[i] + sbsInfo.Start;
x2 = xValues[i] + sbsInfo.End;
y1 = HighValues[i];
y2 = IsMultipleYPathRequired ? LowValues[i] : 0;
if (i < Segments.Count)
{
(Segments[i].Item) = ActualData[i];
(Segments[i]).SetData(x1, y1, x2, y2);
(Segments[i] as RangeColumnSegment).High = y1;
(Segments[i] as RangeColumnSegment).Low = y2;
if (SegmentColorPath != null && !Segments[i].IsEmptySegmentInterior && ColorValues.Count > 0 && !Segments[i].IsSelectedSegment)
{
Segments[i].Interior = (Interior != null) ? Interior : ColorValues[i];
}
}
else
{
RangeColumnSegment rangeColumn = new RangeColumnSegment(x1, y1, x2, y2, this, ActualData[i]);
rangeColumn.High = y1;
rangeColumn.Low = y2;
Segments.Add(rangeColumn);
}
if (AdornmentsInfo != null)
{
AddAdornments(xValues[i], sbsInfo.Start + sbsInfo.Delta / 2, y1, y2, i);
}
}
}
if (ShowEmptyPoints)
{
UpdateEmptyPointSegments(xValues, true);
}
}
}
