/// <summary>
/// draws the y-axis labels to the screen
/// </summary>
public virtual void RenderAxisLabels(SKCanvas c)
{
if (!YAxis.IsEnabled || !YAxis.IsDrawLabelsEnabled)
{
return;
}
SKPoint[] positions = GetTransformedPositions();
AxisLabelPaint.Typeface = YAxis.Typeface;
AxisLabelPaint.TextSize = YAxis.TextSize;
AxisLabelPaint.Color = YAxis.TextColor;
float xoffset = YAxis.XOffset;
float yoffset = AxisLabelPaint.MeasureHeight("A") / 2.5f + YAxis.YOffset;
YAxisDependency dependency = YAxis.AxisDependency;
YAxis.YAxisLabelPosition labelPosition = YAxis.Position;
float xPos;
if (dependency == YAxisDependency.Left)
{
if (labelPosition == YAxis.YAxisLabelPosition.OutSideChart)
{
AxisLabelPaint.TextAlign = SKTextAlign.Right;
xPos = ViewPortHandler.OffsetLeft - xoffset;
}
else
{
AxisLabelPaint.TextAlign = SKTextAlign.Left;
xPos = ViewPortHandler.OffsetLeft + xoffset;
}
}
else
{
if (labelPosition == YAxis.YAxisLabelPosition.OutSideChart)
{
AxisLabelPaint.TextAlign = SKTextAlign.Left;
xPos = ViewPortHandler.ContentRight + xoffset;
}
else
{
AxisLabelPaint.TextAlign = SKTextAlign.Right;
xPos = ViewPortHandler.ContentRight - xoffset;
}
}
DrawYLabels(c, xPos, positions, yoffset);
}
public override void RenderAxisLabels(SKCanvas c)
{
if (!YAxis.IsEnabled || !YAxis.IsDrawLabelsEnabled)
{
return;
}
SKPoint[] positions = GetTransformedPositions();
AxisLabelPaint.Typeface = YAxis.Typeface;
AxisLabelPaint.TextSize = YAxis.TextSize;
AxisLabelPaint.Color = YAxis.TextColor;
AxisLabelPaint.TextAlign = SKTextAlign.Center;
float baseYOffset = 2.5f.DpToPixel();
float textHeight = AxisLabelPaint.MeasureHeight("Q");
YAxisDependency dependency = YAxis.AxisDependency;
YAxis.YAxisLabelPosition labelPosition = YAxis.Position;
float yPos;
if (dependency == YAxisDependency.Left)
{
if (labelPosition == YAxis.YAxisLabelPosition.OutSideChart)
{
yPos = ViewPortHandler.ContentTop - baseYOffset;
}
else
{
yPos = ViewPortHandler.ContentTop - baseYOffset;
}
}
else
{
if (labelPosition == YAxis.YAxisLabelPosition.OutSideChart)
{
yPos = ViewPortHandler.ContentBottom + textHeight + baseYOffset;
}
else
{
yPos = ViewPortHandler.ContentBottom + textHeight + baseYOffset;
}
}
DrawYLabels(c, yPos, positions, YAxis.YOffset);
}
protected virtual void ComputeSize()
{
var longest = XAxis.GetLongestLabel();
AxisLabelPaint.Typeface = XAxis.Typeface;
AxisLabelPaint.TextSize = XAxis.TextSize;
var labelSize = AxisLabelPaint.Measure(longest);
float labelWidth = labelSize.Width;
float labelHeight = AxisLabelPaint.MeasureHeight("Q");
var labelRotatedSize = ChartUtil.GetSizeOfRotatedRectangleByDegrees(
labelWidth,
labelHeight,
XAxis.LabelRotationAngle);
XAxis.LabelWidth = (int)Math.Round(labelWidth);
XAxis.LabelHeight = (int)Math.Round(labelHeight);
XAxis.LabelRotatedWidth = (int)MathF.Round(labelRotatedSize.Width);
XAxis.LabelRotatedHeight = (int)MathF.Round(labelRotatedSize.Height);
}