/// <summary>
/// To calculate the current label's start and end position
/// </summary>
/// <param name="label">The Label</param>
/// <returns>Returns a value indicating whether the range permissible.</returns>
private bool SetValues(ChartMultiLevelLabel label)
{
startValue = CalculatePosition(label.Start);
endValue = CalculatePosition(label.End);
if (startValue > endValue || startValue == endValue)
{
return(true);
}
if (Axis.Orientation == Orientation.Horizontal)
{
start = Math.Round(Axis.ValueToCoefficient(startValue)
* (Axis.RenderedRect.Width)) + Axis.ActualPlotOffset;
end = Math.Round(Axis.ValueToCoefficient(endValue)
* (Axis.RenderedRect.Width)) + Axis.ActualPlotOffset;
}
else
{
start = (1 - Axis.ValueToCoefficientCalc(startValue)) *
Axis.RenderedRect.Height + Axis.ActualPlotOffset;
end = (1 - Axis.ValueToCoefficientCalc(endValue)) *
Axis.RenderedRect.Height + Axis.ActualPlotOffset;
}
return(false);
}
// To Clone the multi level label properties
protected virtual DependencyObject CloneMultiAxisLabel(DependencyObject obj)
{
ChartMultiLevelLabel multiLevelLabel = new ChartMultiLevelLabel();
multiLevelLabel.Start = this.Start;
multiLevelLabel.End = this.End;
multiLevelLabel.Level = this.Level;
multiLevelLabel.Text = this.Text;
multiLevelLabel.FontSize = this.FontSize;
multiLevelLabel.Foreground = this.Foreground;
multiLevelLabel.FontFamily = this.FontFamily;
multiLevelLabel.LabelAlignment = this.LabelAlignment;
return(multiLevelLabel);
}
/// <summary>
/// To reset the current values of <see cref="MultiLevelLabelsPanel"/>
/// </summary>
private void ResetLabelValues()
{
currentBorderPos = 0;
currentBracePos = 0;
currentLabel = null;
currentRow = 0;
if (Axis.Orientation == Orientation.Horizontal)
{
height = 0;
top = 0;
}
else
{
width = 0;
left = 0;
}
}
/// <summary>
/// To set the text blocks and borders of horizontal axis's <see cref="MultiLevelLabelsPanel"/>.
/// </summary>
/// <param name="finalSize">The Final Size</param>
private void ArrangeHorizontalLabels(Size finalSize)
{
int j = 0, row = 0;
top = isOpposed ? finalSize.Height : 0;
foreach (IGrouping <int, ChartMultiLevelLabel> level in groupedLabels)
{
var collection = Axis.IsInversed ? level.Reverse() : level;
foreach (ChartMultiLevelLabel label in collection)
{
currentLabel = label;
if (SetValues(currentLabel))
{
CheckLabelRange();
continue;
}
SetTextBlockPosition();
SetBorderStyle(j, row, collection, true);
j++;
}
if (isOpposed)
{
top -= height;
}
else
{
top += height;
}
j = 0;
row++;
currentRow = row;
}
ResetLabelValues();
}
/// <summary>
/// To arrange the text blocks and border of vertical axis's <see cref="MultiLevelLabelsPanel"/>.
/// </summary>
/// <param name="finalSize">The Final Size</param>
private void ArrangeVerticalLables(Size finalSize)
{
int j = 0, row = 0;
left = isOpposed ? width - margin.Right :
(finalSize.Width - (width - (margin.Right + margin.Left)));
foreach (IGrouping <int, ChartMultiLevelLabel> level in groupedLabels)
{
var collection = Axis.IsInversed ? level.Reverse() : level;
foreach (ChartMultiLevelLabel label in collection)
{
currentLabel = label;
if (SetValues(label))
{
CheckLabelRange();
continue;
}
SetTextBlockPosition();
SetBorderStyle(j, row, collection, false);
j++;
}
if (isOpposed)
{
left += width;
}
else
{
left -= width;
}
j = 0;
row++;
}
ResetLabelValues();
}
