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Bug 2213

Summary: ClipEllipse doesn't work with Inverted mode in GDIPlus
Product: VCL TeeChart Reporter: yeray alonso <yeray>
Component: CanvasAssignee: Steema Issue Manager <issuemanager>
Status: RESOLVED FIXED    
Severity: enhancement    
Priority: ---    
Version: 26.181203   
Target Milestone: ---   
Hardware: PC   
OS: Windows   
Chart Series: --- Delphi / C++ Builder RAD IDE Version:

Description yeray alonso 2019-07-17 07:20:39 EDT 
Example:

uses VCLTee.Series;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Chart1.View3D:=False;
  Chart1.AddSeries(TPointSeries);

  Chart1.Axes.Bottom.SetMinMax(0,20);
  Chart1.Axes.Left.SetMinMax(0,10);
end;

procedure TForm1.Chart1AfterDraw(Sender: TObject);
var innerR, outerR: TRect;
begin
  with Chart1 do
  begin
    outerR:=Rect(Axes.Bottom.CalcXPosValue(1), Axes.Left.CalcYPosValue(1), Axes.Bottom.CalcXPosValue(9), Axes.Left.CalcYPosValue(9));
    innerR:=Rect(Axes.Bottom.CalcXPosValue(4), Axes.Left.CalcYPosValue(4), Axes.Bottom.CalcXPosValue(6), Axes.Left.CalcYPosValue(6));
  end;

  with Chart1.Canvas do
  begin
    Brush.Color:=clBlue;
    Ellipse(outerR);
    Brush.Color:=clRed;
    Ellipse(innerR);
  end;

  innerR.Offset(Chart1.Axes.Bottom.CalcSizeValue(10),0);
  outerR.Offset(Chart1.Axes.Bottom.CalcSizeValue(10),0);

  with Chart1.Canvas do
  begin
    Brush.Color:=clBlue;
    ClipEllipse(innerR, True);
    Ellipse(outerR);
    UnClipRectangle;
    Brush.Style:=bsClear;
    Ellipse(innerR);
  end;
end;