protected virtual void DrawLine(CGContext context, List <CGPoint> points, PointRenderStyle renderStyle)
{
if (renderStyle.BezierCurve)
{
DrawCurveLine(context, points, renderStyle.LineStyle, renderStyle.CurvatureIntensity);
}
else
{
DrawLinearLine(context, points, renderStyle.LineStyle);
}
}
protected virtual void Draw(CGContext context, IEnumerable <IPointEntry> entries, IEnumerable <IPointEntry> highlightedEntries, IViewPort viewPort, IXAxis xAxis, IYAxis yAxis, PointRenderStyle renderStyle)
{
var points = entries
?.Select(t => new
{
Point = GetDrawPosition(t.X, t.Y, viewPort, xAxis, yAxis),
IsHighlight = highlightedEntries?.Contains(t) ?? false,
Entry = t
})
.ToList();
if (points != null)
{
context.SaveState();
context.ClipToRect(viewPort.ViewPortRect);
if (renderStyle.LineStyle.ShouldDraw)
{
DrawLine(context, points.Select(t => t.Point).ToList(), renderStyle);
}
if (renderStyle.MarkerStyle.ShouldDraw)
{
DrawNotHighlightedMarkers(context, points.Where(t => !t.IsHighlight).Select(t => t.Point).ToList(), renderStyle.MarkerStyle);
}
if (renderStyle.HighlightMarkerStyle.ShouldDraw)
{
DrawHighlightedMarkers(context, points.Where(t => t.IsHighlight).Select(t => t.Point).ToList(), renderStyle.HighlightMarkerStyle);
}
foreach (var point in points)
{
if (ShouldDraw(point.IsHighlight, renderStyle.TextStyle, renderStyle.HighlightTextStyle))
{
DrawEntryValue(context, point.Entry, point.Point, point.IsHighlight ? renderStyle.HighlightTextStyle : renderStyle.TextStyle);
}
}
context.RestoreState();
}
}
public static void DrawPoint(Graphics g, int x, int y, int radius, int rotateAngle, Pen pen, Brush brush, PointRenderStyle style)
{
GraphicsState state = g.Save();
g.ScaleTransform((float)radius / 10, (float)radius / 10);
g.RotateTransform(rotateAngle, MatrixOrder.Append);
g.TranslateTransform(x, y, MatrixOrder.Append);
GraphicsPath path = prototypes[style];
if (pen != null)
{
g.DrawPath(pen, path);
}
if (brush != null)
{
g.FillPath(brush, path);
}
g.Restore(state);
}
