public void RenderLimitLineLabel(SKCanvas c, LimitLine limitLine, SKPoint position, float yOffset)
{
string label = limitLine.Label;
// if drawing the limit-value label is enabled
if (string.IsNullOrEmpty(label) == false)
{
LimitLinePaint.Style = limitLine.TextStyle;
LimitLinePaint.PathEffect = null;
LimitLinePaint.Color = limitLine.TextColor;
LimitLinePaint.StrokeWidth = 0.5f;
LimitLinePaint.TextSize = limitLine.TextSize;
float xOffset = limitLine.LineWidth + limitLine.XOffset;
LimitLine.LimitLabelPosition labelPosition = limitLine.LabelPosition;
if (labelPosition == LimitLine.LimitLabelPosition.RightTop)
{
float labelLineHeight = LimitLinePaint.MeasureHeight(label);
LimitLinePaint.TextAlign = SKTextAlign.Left;
c.DrawText(label, position.X + xOffset, ViewPortHandler.ContentTop + yOffset + labelLineHeight,
LimitLinePaint);
}
else if (labelPosition == LimitLine.LimitLabelPosition.RightBottom)
{
LimitLinePaint.TextAlign = SKTextAlign.Left;
c.DrawText(label, position.X + xOffset, ViewPortHandler.ContentBottom - yOffset, LimitLinePaint);
}
else if (labelPosition == LimitLine.LimitLabelPosition.LeftTop)
{
LimitLinePaint.TextAlign = SKTextAlign.Right;
float labelLineHeight = LimitLinePaint.MeasureHeight(label);
c.DrawText(label, position.X - xOffset, ViewPortHandler.ContentTop + yOffset + labelLineHeight,
LimitLinePaint);
}
else
{
LimitLinePaint.TextAlign = SKTextAlign.Right;
c.DrawText(label, position.X - xOffset, ViewPortHandler.ContentBottom - yOffset, LimitLinePaint);
}
}
}
public virtual void RenderLimitLines(SKCanvas c)
{
IList <LimitLine> limitLines = YAxis.LimitLines;
if (limitLines == null || limitLines.Count <= 0)
{
return;
}
SKPath limitLinePath = RenderLimitLinesPath;
limitLinePath.Reset();
foreach (LimitLine l in limitLines)
{
if (!l.IsEnabled)
{
continue;
}
int clipRestoreCount = c.Save();
SKRect limitLineClippingRect = ViewPortHandler.ContentRect.InsetVertically(l.LineWidth);
c.ClipRect(limitLineClippingRect);
LimitLinePaint.Style = SKPaintStyle.Stroke;
LimitLinePaint.Color = l.LineColor;
LimitLinePaint.StrokeWidth = l.LineWidth;
LimitLinePaint.PathEffect = l.DashPathEffect;
SKPoint pt = Trasformer.PointValueToPixel(0f, l.Limit);
limitLinePath.MoveTo(ViewPortHandler.ContentLeft, pt.Y);
limitLinePath.LineTo(ViewPortHandler.ContentRight, pt.Y);
c.DrawPath(limitLinePath, LimitLinePaint);
limitLinePath.Reset();
// c.drawLines(pts, mLimitLinePaint);
string label = l.Label;
// if drawing the limit-value label is enabled
if (string.IsNullOrEmpty(label) == false)
{
LimitLinePaint.Style = l.TextStyle;
LimitLinePaint.PathEffect = null;
LimitLinePaint.Typeface = l.Typeface;
LimitLinePaint.Color = l.TextColor;
LimitLinePaint.StrokeWidth = 0.5f;
LimitLinePaint.TextSize = l.TextSize;
float labelLineHeight = LimitLinePaint.MeasureHeight(label);
float xOffset = 4f.DpToPixel() + l.XOffset;
float yOffset = l.LineWidth + labelLineHeight + l.YOffset;
LimitLine.LimitLabelPosition position = l.LabelPosition;
if (position == LimitLine.LimitLabelPosition.RightTop)
{
LimitLinePaint.TextAlign = SKTextAlign.Right;
c.DrawText(label,
ViewPortHandler.ContentRight - xOffset,
pt.Y - yOffset + labelLineHeight, LimitLinePaint);
}
else if (position == LimitLine.LimitLabelPosition.RightBottom)
{
LimitLinePaint.TextAlign = SKTextAlign.Right;
c.DrawText(label,
ViewPortHandler.ContentRight - xOffset,
pt.Y + yOffset, LimitLinePaint);
}
else if (position == LimitLine.LimitLabelPosition.LeftTop)
{
LimitLinePaint.TextAlign = SKTextAlign.Left;
c.DrawText(label,
ViewPortHandler.ContentLeft + xOffset,
pt.Y - yOffset + labelLineHeight, LimitLinePaint);
}
else
{
LimitLinePaint.TextAlign = SKTextAlign.Left;
c.DrawText(label,
ViewPortHandler.OffsetLeft + xOffset,
pt.Y + yOffset, LimitLinePaint);
}
}
c.RestoreToCount(clipRestoreCount);
}
}