protected void DrawHorizontalLabel(ChartValueItem entry, SKCanvas canvas, SKRect frame, SKRect chart)
{
if (!DisplayHorizontalValuesBySlider)
{
return;
}
// Draws the horizontal value the slider is on //
if (string.IsNullOrEmpty(entry?.Label))
{
return;
}
float x = chart.GetInsideXValue(TouchedPoint.X);
if (ChartType == ChartType.Bar)
{
x = entry.Point.X;
}
// Draws background
using (var boundPaint = new SKPaint
{
Color = SliderColor.ToSKColor(),
StrokeCap = SKStrokeCap.Round,
Style = SKPaintStyle.StrokeAndFill,
StrokeWidth = SliderWidth
})
{
var bounds = boundPaint.GetBounds(
entry.Label,
x,
frame.Bottom + HorizontalTextSize + (HorizontalTextSize / 4),
padding: InternalSliderDetailPadding);
if (bounds.Right > frame.Right)
{
bounds.Left = frame.Right - bounds.Width + SliderWidth;
bounds.Right = frame.Right + SliderWidth;
}
else if (bounds.Left < frame.Left)
{
bounds.Right = frame.Left + bounds.Width - SliderWidth;
bounds.Left = frame.Left - SliderWidth;
}
canvas.DrawRoundRect(new SKRoundRect(bounds, SliderDetailCornerRadius), boundPaint);
// Draws text
using (var textPaint = new SKPaint
{
IsAntialias = true,
TextSize = HorizontalTextSize,
Color = SliderDetailTextColor.ToSKColor(),
Typeface = FontTypeService.GetFontFamily(GetType().Assembly),
TextAlign = SKTextAlign.Center,
FakeBoldText = true
})
{
canvas.DrawText(entry.Label, bounds.MidX, bounds.MidY + (bounds.Height / 4), textPaint);
}
}
}
