/// <summary>
/// Draws the value bars.
/// </summary>
/// <param name="canvas">The canvas.</param>
/// <param name="points">The points.</param>
/// <param name="itemSize">The item size.</param>
/// <param name="origin">The origin.</param>
/// <param name="headerHeight">The Header height.</param>
protected void DrawBars(SKCanvas canvas, SKPoint[] points, SKSize itemSize, float origin, float headerHeight)
{
if (points.Length > 0)
{
for (int i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
using (var paint = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = entry.Color,
})
{
var x = point.X - (itemSize.Width / 2);
var y = Math.Min(origin, point.Y);
var height = Math.Max(MinBarHeight, Math.Abs(origin - point.Y));
if (height < MinBarHeight)
{
height = MinBarHeight;
if (y + height > Margin + itemSize.Height)
{
y = headerHeight + itemSize.Height - height;
}
}
var rect = SKRect.Create(x, y, itemSize.Width, height);
canvas.DrawRect(rect, paint);
}
}
}
}
public override void TapCanvas(SKPoint locationTapped)
{
base.TapCanvas(locationTapped);
if (IsTooltipEnabled)
{
for (int i = 0; i < EntriesPoints.Length; i++)
{
SKPoint point = (SKPoint)EntriesPoints[i];
var distance = Math.Pow(point.X - locationTapped.X, 2) + Math.Pow(point.Y - locationTapped.Y, 2);
if (distance <= Math.Pow(_touchRadius, 2))
{
if (_tooltipPoint != point)
{
TouchedEntry = Entries.ElementAt(i);
_shouldDrawTooltip = true;
_tooltipPoint = point;
return;
}
}
}
}
_shouldDrawTooltip = false;
_tooltipPoint = default;
TouchedEntry = null;
}
private void CheckForDoubleUnderscoresInsideSingle()
{
var openingTag = ParserTags["_"][TagType.Opening];
var closingTag = ParserTags["_"][TagType.Closing];
var regexp = new Regex(openingTag + ".*" + closingTag);
var results = regexp.Matches(Markdown);
if (results.Count == 0)
{
return;
}
for (var position = 0; position < Entries.Keys.Count; position += 2)
{
var openingUnderscoreIndex = Entries.ElementAt(position).Key;
var closingUnderscoreIndex = Entries.ElementAt(position + 1).Key;
foreach (var result in results)
{
var match = result as Match;
var startIndex = match.Index;
var lastIndex = startIndex + match.Length - 1;
if (startIndex > openingUnderscoreIndex || lastIndex < closingUnderscoreIndex)
{
continue;
}
Entries.Remove(openingUnderscoreIndex);
Entries.Remove(closingUnderscoreIndex);
}
}
}
/// <summary>
/// Рисуем лэйблы
/// </summary>
protected void DrawLabels(SKCanvas canvas, SKPoint[] points, SKSize itemSize, int height, float footerHeight)
{
// Проходим по записям диаграммы
for (var i = 0; i < Entries.Count(); i++)
{
// Получаем запись
var entry = Entries.ElementAt(i);
var point = points[i];
// Если лейбл не пустой
if (!string.IsNullOrEmpty(entry.Label))
{
using (var paint = new SKPaint())
{
// Настраиваем свойства рисования
paint.TextSize = GreenChartLabelTextSize;
paint.IsAntialias = true;
paint.Color = entry.TextColor;
paint.IsStroke = false;
// Отступы
var bounds = new SKRect();
// Текст
var text = entry.Label;
// Измеряем текст
paint.MeasureText(text, ref bounds);
// Рисуем текст
canvas.DrawText(text, point.X - (bounds.Width / 2), height - Margin + (GreenChartLabelTextSize / 2), paint);
}
}
}
}
private void ScreenInsideTags()
{
var finalString = new StringBuilder(Markdown);
for (var i = 0; i < Entries.Count; i += 2)
{
foreach (var symbol in allSpecialSymbols)
{
var offset = 0;
var regexpr = new Regex($@"(?<!\\|{symbol})({symbol})(?:[\p{{P}}\w\s-[{symbol}]])+?(?<!\\)({symbol})");
var results = regexpr.Matches(finalString.ToString(), Entries.ElementAt(i).Key);
foreach (var result in results)
{
var match = result as Match;
finalString.Insert(match.Groups[1].Index + offset, "\\");
finalString.Insert(match.Groups[2].Index + offset + 1, "\\");
offset += 2;
}
}
}
Entries.Clear();
Screens.Clear();
Markdown = finalString.ToString();
insideTagsScreened = true;
FillEntries();
}
private void DrawCaptionLeftAndRight(SKCanvas canvas, int width, int height, bool isGraphCentered)
{
var sumValue = Entries.Sum(x => Math.Abs(x.Value));
var rightValues = new List <ChartEntry>();
var leftValues = new List <ChartEntry>();
int i = 0;
var current = 0.0f;
while (i < Entries.Count() && (current < sumValue / 2))
{
var entry = Entries.ElementAt(i);
rightValues.Add(entry);
current += Math.Abs(entry.Value);
i++;
}
while (i < Entries.Count())
{
var entry = Entries.ElementAt(i);
leftValues.Add(entry);
i++;
}
leftValues.Reverse();
DrawCaptionElements(canvas, width, height, rightValues, false, isGraphCentered);
DrawCaptionElements(canvas, width, height, leftValues, true, isGraphCentered);
}
protected void DrawLabels(SKCanvas canvas, SKPoint[] points, SKSize itemSize, int height, float footerHeight)
{
for (int i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
if (!string.IsNullOrEmpty(entry.Label))
{
using (var paint = new SKPaint())
{
paint.TextSize = GreenChartLabelTextSize;
paint.IsAntialias = true;
paint.Color = entry.TextColor;
paint.IsStroke = false;
var bounds = new SKRect();
var text = entry.Label;
paint.MeasureText(text, ref bounds);
canvas.DrawText(text, point.X - (bounds.Width / 2), height - Margin + (GreenChartLabelTextSize / 2), paint);
}
}
}
}
void DrawCaption(SKCanvas canvas, int width, int height)
{
var sumValue = Entries.Sum(x => Math.Abs(x.Value));
var rightValues = new List <Entry>();
var leftValues = new List <Entry>();
var i = 0;
var current = 0.0f;
while (i < Entries.Count() && (current < sumValue / 2))
{
var entry = Entries.ElementAt(i);
rightValues.Add(entry);
current += Math.Abs(entry.Value);
i++;
}
while (i < Entries.Count())
{
var entry = Entries.ElementAt(i);
leftValues.Add(entry);
i++;
}
leftValues.Reverse();
DrawCaptionElements(canvas, width, height, rightValues, false);
DrawCaptionElements(canvas, width, height, leftValues, true);
}
public override void DrawContent(SKCanvas canvas, int width, int height)
{
DrawCaption(canvas, width, height);
using (new SKAutoCanvasRestore(canvas))
{
canvas.Translate(width / 2, height / 2);
var sumValue = Entries.Sum(x => Math.Abs(x.Value));
var radius = (Math.Min(width, height) - (2 * Margin)) / 2;
var start = 0.0f;
for (var i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
var end = start + (Math.Abs(entry.Value) / sumValue);
var path = RadialHelpers.CreateSectorPath(start, end, radius, radius - HoleRadius);
using (var paint = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = entry.Color,
IsAntialias = true,
})
{
canvas.DrawPath(path, paint);
}
start = end;
}
}
}
public override void DrawContent(SKCanvas canvas, int width, int height)
{
if (Entries != null)
{
var sumValue = Entries.Where(x => x.Value.HasValue).Sum(x => Math.Abs(x.Value.Value));
var radius = (Math.Min(width, height) - (2 * Margin)) / 2;
var cx = width / 2;
var cy = height / 2;
var lineWidth = (LineSize < 0) ? (radius / ((Entries.Count() + 1) * 2)) : LineSize;
var radiusSpace = lineWidth * 2;
for (int i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
//Skip the ring if it has a null value
if (!entry.Value.HasValue)
{
continue;
}
var entryRadius = (i + 1) * radiusSpace;
DrawGaugeArea(canvas, entry, entryRadius, cx, cy, lineWidth);
DrawGauge(canvas, entry.Color, entry.Value.Value, entryRadius, cx, cy, lineWidth);
}
//Make sure captions draw on top of chart
DrawCaption(canvas, width, height);
}
}
public void SetCurrentSelectedEntry(int index)
{
if (!Entries.Any())
{
return;
}
CurrentSelectedEntry = Entries.ElementAt(index);
}
protected void DrawPoints(SKCanvas canvas, SKPoint[] points)
{
if (points.Length > 0 && PointMode != PointMode.None)
{
for (int i = 0; i < points.Length; i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
canvas.DrawPoint(point, entry.Color, PointSize, PointMode);
}
}
}
public override void DrawContent(SKCanvas canvas, int width, int height)
{
if (Entries != null)
{
DrawCaption(canvas, width, height);
using (new SKAutoCanvasRestore(canvas))
{
if (DrawDebugRectangles)
{
using (var paint = new SKPaint
{
Color = SKColors.Red,
IsStroke = true,
})
{
canvas.DrawRect(DrawableChartArea, paint);
}
}
canvas.Translate(DrawableChartArea.Left + DrawableChartArea.Width / 2, height / 2);
var sumValue = Entries.Where(x => x.Value.HasValue).Sum(x => Math.Abs(x.Value.Value));
var radius = (Math.Min(DrawableChartArea.Width, DrawableChartArea.Height) - (2 * Margin)) / 2;
var start = 0.0f;
for (int i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
if (!entry.Value.HasValue)
{
continue;
}
var end = start + ((Math.Abs(entry.Value.Value) / sumValue) * AnimationProgress);
// Sector
var path = RadialHelpers.CreateSectorPath(start, end, radius, radius * HoleRadius);
using (var paint = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = entry.Color,
IsAntialias = true,
})
{
canvas.DrawPath(path, paint);
}
start = end;
}
}
}
}
protected void DrawArea(SKCanvas canvas, SKPoint[] points, SKSize itemSize, float origin)
{
if (LineAreaAlpha > 0 && points.Length > 1)
{
using (var paint = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = SKColors.White,
IsAntialias = true,
})
{
using (var shaderX = CreateXGradient(points, (byte)(LineAreaAlpha * AnimationProgress)))
using (var shaderY = CreateYGradient(points, (byte)(LineAreaAlpha * AnimationProgress)))
{
paint.Shader = EnableYFadeOutGradient ? SKShader.CreateCompose(shaderY, shaderX, SKBlendMode.SrcOut) : shaderX;
var path = new SKPath();
path.MoveTo(points.First().X, origin);
path.LineTo(points.First());
var last = (LineMode == LineMode.Spline) ? points.Length - 1 : points.Length;
for (int i = 0; i < last; i++)
{
var entry = Entries.ElementAt(i);
if (LineMode == LineMode.Spline)
{
var nextEntry = Entries.ElementAt(i + 1);
var cubicInfo = CalculateCubicInfo(points, i, itemSize);
path.CubicTo(cubicInfo.control, cubicInfo.nextControl, cubicInfo.nextPoint);
}
else if (LineMode == LineMode.Straight)
{
if (!entry.Value.HasValue)
{
continue;
}
path.LineTo(points[i]);
}
}
path.LineTo(points.Last().X, origin);
path.Close();
canvas.DrawPath(path, paint);
}
}
}
}
protected void DrawPoints(SKCanvas canvas, SKPoint[] points)
{
if (points.Length > 0 && PointMode != PointMode.None)
{
for (int i = 0; i < points.Length; i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
// TO DO - Fix this
throw new NotImplementedException();
// canvas.DrawPoint(point, entry.Color, PointSize, PointMode);
}
}
}
protected SKPoint[] CalculatePoints(SKSize itemSize, float origin, float headerHeight)
{
var result = new List <SKPoint>();
for (int i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
var x = Margin + (itemSize.Width / 2) + (i * (itemSize.Width + Margin));
var y = headerHeight + (((MaxValue - entry.Value) / ValueRange) * itemSize.Height);
var point = new SKPoint(x, y);
result.Add(point);
}
return(result.ToArray());
}
protected void DrawLine(SKCanvas canvas, SKPoint[] points, SKSize itemSize)
{
if (points.Length > 1 && LineMode != LineMode.None)
{
using (var paint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = SKColors.White,
StrokeWidth = LineSize,
IsAntialias = true,
})
{
using (var shader = CreateXGradient(points))
{
paint.Shader = shader;
var path = new SKPath();
path.MoveTo(points.First());
var last = (LineMode == LineMode.Spline) ? points.Length - 1 : points.Length;
for (int i = 0; i < last; i++)
{
var entry = Entries.ElementAt(i);
if (LineMode == LineMode.Spline)
{
var nextEntry = Entries.ElementAt(i + 1);
var cubicInfo = CalculateCubicInfo(points, i, itemSize);
path.CubicTo(cubicInfo.control, cubicInfo.nextControl, cubicInfo.nextPoint);
}
else if (LineMode == LineMode.Straight)
{
if (!entry.Value.HasValue)
{
continue;
}
path.LineTo(points[i]);
}
}
canvas.DrawPath(path, paint);
}
}
}
}
public IEnumerable <CASCFile> GetFiles(IEnumerable <int> selection = null, bool recursive = true)
{
if (selection != null)
{
foreach (int index in selection)
{
var entry = Entries.ElementAt(index);
if (entry.Value is CASCFile)
{
yield return(entry.Value as CASCFile);
}
else
{
if (recursive)
{
foreach (var file in (entry.Value as CASCFolder).GetFiles())
{
yield return(file);
}
}
}
}
}
else
{
foreach (var entry in Entries)
{
if (entry.Value is CASCFile)
{
yield return(entry.Value as CASCFile);
}
else
{
if (recursive)
{
foreach (var file in (entry.Value as CASCFolder).GetFiles())
{
yield return(file);
}
}
}
}
}
}
/// <summary>
/// Рисуем точечные области
/// </summary>
protected void DrawPointAreas(SKCanvas canvas, SKPoint[] points, float origin)
{
if (points.Length > 0)
{
for (var i = 0; i < points.Length; i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
var y = Math.Min(origin, point.Y);
using (var paint = new SKPaint {
Style = SKPaintStyle.Fill, Color = entry.Color
})
{
var height = Math.Max(2, Math.Abs(origin - point.Y));
canvas.DrawRect(SKRect.Create(point.X - (PointSize / 2), y, PointSize, height), paint);
}
}
}
}
/// <summary>
/// Draws the bar background areas.
/// </summary>
/// <param name="canvas">The output canvas.</param>
/// <param name="points">The entry points.</param>
/// <param name="itemSize">The item size.</param>
/// <param name="headerHeight">The header height.</param>
protected void BuildBarAreas(ICanvas canvas, Point[] points, Size itemSize, double headerHeight)
{
if (points.Length > 0 && PointAreaAlpha > 0)
{
for (int i = 0; i < points.Length; i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
var color = entry.Color.WithA((byte)(this.BarAreaAlpha * this.AnimationProgress));
var brush = SolidColorBrush().Color(color);
var max = entry.Value > 0 ? headerHeight : headerHeight + itemSize.Height;
var height = Math.Abs(max - point.Y);
var y = Math.Min(max, point.Y);
var barArea = Rectangle().Width(itemSize.Width).Height(height).Fill(brush);
canvas.Add(point.X - (itemSize.Width / 2), y, barArea);
}
}
}
/// <summary>
/// Посчитать точки
/// </summary>
protected SKPoint[] CalculatePoints(SKSize itemSize, float origin, float headerHeight)
{
// Результат
var result = new List <SKPoint>();
// Проходим по записям диаграммы
for (var i = 0; i < Entries.Count(); i++)
{
// Получаем запись
var entry = Entries.ElementAt(i);
// Подсчитываем x, y
var x = Margin + (itemSize.Width / 2) + (i * (itemSize.Width + Margin));
var y = headerHeight + (((MaxValue - entry.Value) / ValueRange) * itemSize.Height);
var point = new SKPoint(x, y);
result.Add(point);
}
return(result.ToArray());
}
public override void DrawContent(SKCanvas canvas, int width, int height)
{
if (Entries != null)
{
DrawCaption(canvas, width, height);
var sumValue = Entries.Sum(x => Math.Abs(x.Value));
var radius = (Math.Min(width, height) - (2 * Margin)) / 2;
var cx = width / 2;
var cy = height / 2;
var lineWidth = (LineSize < 0) ? (radius / ((Entries.Count() + 1) * 2)) : LineSize;
var radiusSpace = lineWidth * 2;
for (int i = 0; i < Entries.Count(); i++)
{
var entry = Entries.ElementAt(i);
var entryRadius = (i + 1) * radiusSpace;
DrawGaugeArea(canvas, entry, entryRadius, cx, cy, lineWidth);
DrawGauge(canvas, entry, entryRadius, cx, cy, lineWidth);
}
}
}
/// <summary>
/// Draws the bar background areas.
/// </summary>
/// <param name="canvas">The output canvas.</param>
/// <param name="points">The entry points.</param>
/// <param name="itemSize">The item size.</param>
/// <param name="headerHeight">The header height.</param>
protected void DrawBarAreas(SKCanvas canvas, SKPoint[] points, SKSize itemSize, float headerHeight)
{
if (points.Length > 0 && BarAreaAlpha > 0)
{
for (int i = 0; i < points.Length; i++)
{
var entry = Entries.ElementAt(i);
var point = points[i];
using (var paint = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = entry.Color.WithAlpha((byte)(this.BarAreaAlpha * this.AnimationProgress)),
})
{
var max = entry.Value > 0 ? headerHeight : headerHeight + itemSize.Height;
var height = Math.Abs(max - point.Y);
var y = Math.Min(max, point.Y);
canvas.DrawRect(SKRect.Create(point.X - (itemSize.Width / 2), y, itemSize.Width, height), paint);
}
}
}
}
public override void DrawContent(SKCanvas canvas, int width, int height)
{
base.DrawContent(canvas, width, height);
if (AreaEntries != null)
{
var fromEntries = AreaEntries.Select(ae => new ChartEntry(ae.FromValue)
{
Color = ae.Color
});
var toEntries = AreaEntries.Select(ae => new ChartEntry(ae.ToValue)
{
Color = ae.Color
});
var fromEntriesPoints = CalculatePoints(ItemSize, Origin, HeaderHeight, fromEntries, YAxisXShift);
var toEntriesPoints = CalculatePoints(ItemSize, Origin, HeaderHeight, toEntries, YAxisXShift);
if (ShouldDrawAreaPoints)
{
DrawPoints(canvas, fromEntriesPoints, fromEntries);
DrawPoints(canvas, toEntriesPoints, toEntries);
}
this.DrawArea(canvas, fromEntriesPoints, ItemSize, Origin, fromEntries, toEntriesPoints);
this.DrawLine(canvas, fromEntriesPoints, ItemSize, fromEntries);
this.DrawLine(canvas, toEntriesPoints, ItemSize, toEntries);
}
if (_shouldDrawTooltip)
{
int pointForDrawingIndex = Array.IndexOf(EntriesPoints, _tooltipPoint);
if (pointForDrawingIndex >= 0)
{
DrawTooltip(canvas, Entries.ElementAt(pointForDrawingIndex));
}
}
}
public override void DrawContent(SKCanvas canvas, int width, int height)
{
var total = Entries?.Count() ?? 0;
if (total > 0)
{
var captionHeight = Entries.Max(x =>
{
var result = 0.0f;
var hasLabel = !string.IsNullOrEmpty(x.Label);
var hasValueLabel = !string.IsNullOrEmpty(x.ValueLabel);
if (hasLabel || hasValueLabel)
{
var hasOffset = hasLabel && hasValueLabel;
var captionMargin = LabelTextSize * 0.60f;
var space = hasOffset ? captionMargin : 0;
if (hasLabel)
{
result += LabelTextSize;
}
if (hasValueLabel)
{
result += LabelTextSize;
}
}
return(result);
});
var center = new SKPoint(width / 2, height / 2);
var radius = ((Math.Min(width, height) - (2 * Margin)) / 2) - captionHeight;
var rangeAngle = (float)((Math.PI * 2) / total);
var startAngle = (float)Math.PI;
DrawBorder(canvas, center, radius);
using (var clip = new SKPath())
{
clip.AddCircle(center.X, center.Y, radius);
for (int i = 0; i < total; i++)
{
var angle = startAngle + (rangeAngle * i);
var entry = Entries.ElementAt(i);
int nextIndex = (i + 1) % total;
var nextAngle = startAngle + (rangeAngle * nextIndex);
var nextEntry = Entries.ElementAt(nextIndex);
while (!nextEntry.Value.HasValue)
{
nextIndex = (nextIndex + 1) % total;
nextAngle = startAngle + (rangeAngle * nextIndex);
nextEntry = Entries.ElementAt(nextIndex);
}
canvas.Save();
if (entry.Value.HasValue)
{
var point = GetPoint(entry.Value.Value * AnimationProgress, center, angle, radius);
var nextPoint = GetPoint(nextEntry.Value.Value * AnimationProgress, center, nextAngle, radius);
canvas.ClipPath(clip);
// Border center bars
using (var paint = new SKPaint()
{
Style = SKPaintStyle.Stroke,
StrokeWidth = BorderLineSize,
Color = BorderLineColor,
IsAntialias = true,
})
{
var borderPoint = GetPoint(MaxValue, center, angle, radius);
canvas.DrawLine(point.X, point.Y, borderPoint.X, borderPoint.Y, paint);
}
// Values points and lines
using (var paint = new SKPaint()
{
Style = SKPaintStyle.Stroke,
StrokeWidth = BorderLineSize,
Color = entry.Color.WithAlpha((byte)(entry.Color.Alpha * 0.75f * AnimationProgress)),
PathEffect = SKPathEffect.CreateDash(new[] { BorderLineSize, BorderLineSize * 2 }, 0),
IsAntialias = true,
})
{
var amount = Math.Abs(entry.Value.Value - AbsoluteMinimum) / ValueRange;
canvas.DrawCircle(center.X, center.Y, radius * amount, paint);
}
canvas.DrawGradientLine(center, entry.Color.WithAlpha(0), point, entry.Color.WithAlpha((byte)(entry.Color.Alpha * 0.75f)), LineSize);
canvas.DrawGradientLine(point, entry.Color, nextPoint, nextEntry.Color, LineSize);
canvas.DrawPoint(point, entry.Color, PointSize, PointMode);
}
canvas.Restore();
// Labels
var labelPoint = new SKPoint(0, radius + LabelTextSize + (PointSize / 2));
var rotation = SKMatrix.CreateRotation(angle);
labelPoint = center + rotation.MapPoint(labelPoint);
var alignment = SKTextAlign.Left;
if ((Math.Abs(angle - (startAngle + Math.PI)) < Epsilon) || (Math.Abs(angle - Math.PI) < Epsilon))
{
alignment = SKTextAlign.Center;
}
else if (angle > (float)(startAngle + Math.PI))
{
alignment = SKTextAlign.Right;
}
canvas.DrawCaptionLabels(entry.Label, entry.TextColor, entry.ValueLabel, entry.Color.WithAlpha((byte)(255 * AnimationProgress)), LabelTextSize, labelPoint, alignment, base.Typeface, out var _);
}
}
}
}
public override void BuildContent(ICanvas canvas, int width, int height)
{
var total = Entries?.Count() ?? 0;
if (total > 0)
{
var captionHeight = Entries.Max(x =>
{
var result = 0.0;
var hasLabel = !string.IsNullOrEmpty(x.Label);
var hasValueLabel = !string.IsNullOrEmpty(x.ValueLabel);
if (hasLabel || hasValueLabel)
{
var hasOffset = hasLabel && hasValueLabel;
var captionMargin = LabelTextSize * 0.60f;
var space = hasOffset ? captionMargin : 0;
if (hasLabel)
{
result += LabelTextSize;
}
if (hasValueLabel)
{
result += LabelTextSize;
}
}
return(result);
});
var center = new Point(width / 2, height / 2);
var radius = ((Math.Min(width, height) - (2 * Margin)) / 2) - captionHeight;
var rangeAngle = (float)((Math.PI * 2) / total);
var startAngle = (float)Math.PI;
var nextEntry = Entries.First();
var nextAngle = startAngle;
var nextPoint = GetPoint(nextEntry.Value * AnimationProgress, center, nextAngle, radius);
DrawBorder(canvas, center, radius);
#if LATER
clip.AddCircle(center.X, center.Y, radius);
#endif
for (int i = 0; i < total; i++)
{
var angle = nextAngle;
var entry = nextEntry;
var point = nextPoint;
var nextIndex = (i + 1) % total;
nextAngle = startAngle + (rangeAngle * nextIndex);
nextEntry = Entries.ElementAt(nextIndex);
nextPoint = GetPoint(nextEntry.Value * AnimationProgress, center, nextAngle, radius);
#if LATER
canvas.Save();
canvas.ClipPath(clip);
#endif
// Border center bars
var borderPoint = GetPoint(MaxValue, center, angle, radius);
var line = Line().X1(point.X).Y1(point.Y).X2(borderPoint.X).Y2(borderPoint.Y).Stroke(SolidColorBrush().Color(BorderLineColor)).StrokeThickness(BorderLineSize);
canvas.Add(0, 0, line);
// Values points and lines
//PathEffect = SKPathEffect.CreateDash(new[] { BorderLineSize, BorderLineSize * 2 }, 0),
var amount = Math.Abs(entry.Value - AbsoluteMinimum) / ValueRange;
var diameter = radius * amount * 2;
var circleColor = entry.Color.WithA((byte)(entry.Color.A * 0.75f * AnimationProgress));
var circle = Ellipse().Width(diameter).Height(diameter).Stroke(SolidColorBrush().Color(circleColor)).StrokeThickness(BorderLineSize);
canvas.Add(center.X - diameter / 2, center.Y - diameter / 2, circle);
canvas.DrawGradientLine(center, entry.Color.WithA(0), point, entry.Color.WithA((byte)(entry.Color.A * 0.75f)), LineSize);
canvas.DrawGradientLine(point, entry.Color, nextPoint, nextEntry.Color, LineSize);
canvas.DrawPoint(point, entry.Color, (float)PointSize, PointMode);
}
#if LATER
canvas.Restore();
#endif
#if LATER
// Labels
var labelPoint = new Point(0, radius + LabelTextSize + (PointSize / 2));
var rotation = SKMatrix.MakeRotation(angle);
labelPoint = center + rotation.MapPoint(labelPoint);
var alignment = SKTextAlign.Left;
if ((Math.Abs(angle - (startAngle + Math.PI)) < Epsilon) || (Math.Abs(angle - Math.PI) < Epsilon))
{
alignment = SKTextAlign.Center;
}
else if (angle > (float)(startAngle + Math.PI))
{
alignment = SKTextAlign.Right;
}
canvas.DrawCaptionLabels(entry.Label, entry.TextColor, UnicodeMode, UnicodeLanguage, entry.ValueLabel, entry.Color.WithA((byte)(255 * AnimationProgress)), LabelTextSize, labelPoint, alignment, base.Typeface, out var _);
#endif
}
}