diff --git a/applications/lazstats/source/LazStats.lpi b/applications/lazstats/source/LazStats.lpi
index 56254e1e6..fa5111c08 100644
--- a/applications/lazstats/source/LazStats.lpi
+++ b/applications/lazstats/source/LazStats.lpi
@@ -49,7 +49,7 @@
         <PackageName Value="LCL"/>
       </Item7>
     </RequiredPackages>
-    <Units Count="173">
+    <Units Count="174">
       <Unit0>
         <Filename Value="LazStats.lpr"/>
         <IsPartOfProject Value="True"/>
@@ -1405,6 +1405,14 @@
         <IsPartOfProject Value="True"/>
         <UnitName Value="MathUnit"/>
       </Unit172>
+      <Unit173>
+        <Filename Value="frames\chartframeunit.pas"/>
+        <IsPartOfProject Value="True"/>
+        <ComponentName Value="ChartFrame"/>
+        <HasResources Value="True"/>
+        <ResourceBaseClass Value="Frame"/>
+        <UnitName Value="ChartFrameUnit"/>
+      </Unit173>
     </Units>
   </ProjectOptions>
   <CompilerOptions>
@@ -1415,7 +1423,7 @@
     </Target>
     <SearchPaths>
       <IncludeFiles Value="$(ProjOutDir)"/>
-      <OtherUnitFiles Value="forms;forms\analysis;forms\analysis\cross-classification;forms\analysis\financial;forms\analysis\descriptive;forms\analysis\one_sample_tests;forms\analysis\comparisons;forms\analysis\correlation;forms\analysis\matrix_manipulation;forms\analysis\measurement_programs;forms\analysis\measurement_programs\item_banking;forms\analysis\multiple_regression;forms\analysis\multivariate;forms\analysis\nonparametric;forms\analysis\statistical_process_control;forms\help;forms\options;forms\misc;forms\simulations;forms\tools;forms\variables;units"/>
+      <OtherUnitFiles Value="forms;forms\analysis;forms\analysis\cross-classification;forms\analysis\financial;forms\analysis\descriptive;forms\analysis\one_sample_tests;forms\analysis\comparisons;forms\analysis\correlation;forms\analysis\matrix_manipulation;forms\analysis\measurement_programs;forms\analysis\measurement_programs\item_banking;forms\analysis\multiple_regression;forms\analysis\multivariate;forms\analysis\nonparametric;forms\analysis\statistical_process_control;forms\help;forms\options;forms\misc;forms\simulations;forms\tools;forms\variables;units;frames"/>
       <UnitOutputDirectory Value="..\ppu\$(TargetCPU)-$(TargetOS)"/>
     </SearchPaths>
     <CodeGeneration>
diff --git a/applications/lazstats/source/forms/analysis/descriptive/boxplotunit.pas b/applications/lazstats/source/forms/analysis/descriptive/boxplotunit.pas
index df913d07b..b29cc378e 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/boxplotunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/boxplotunit.pas
@@ -445,9 +445,9 @@ begin
     clr := BOX_COLORS[i mod Length(BOX_COLORS)];
     ser.AddXY(i+1, TenPcnt[i], LowQrtl[i], Medians[i], HiQrtl[i], NinetyPcnt[i], '', clr);
   end;
-  ChartForm.Chart.BottomAxis.Marks.Source := ser.ListSource;
-  ChartForm.Chart.BottomAxis.Marks.Style := smsXValue;
-  ChartForm.Chart.AddSeries(ser);
+  ChartForm.ChartFrame.Chart.BottomAxis.Marks.Source := ser.ListSource;
+  ChartForm.ChartFrame.Chart.BottomAxis.Marks.Style := smsXValue;
+  ChartForm.ChartFrame.Chart.AddSeries(ser);
 
   ChartForm.Show;
 end;
diff --git a/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas b/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas
index 44e7c1e6a..163486600 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas
@@ -83,7 +83,7 @@ implementation
 uses
   {$IFDEF USE_TACHART}
   TATypes,
-  ChartUnit,
+  ChartFrameUnit, ChartUnit,
   {$ELSE}
   BlankFrmUnit,
   {$ENDIF}
diff --git a/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas b/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas
index 0c9c4e721..57849a284 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas
@@ -76,7 +76,7 @@ implementation
 uses
   {$IFDEF USE_TACHART}
   TAChartUtils,
-  ChartUnit,
+  ChartFrameUnit, ChartUnit,
   {$ELSE}
   BlankFrmUnit,
   {$ENDIF}
diff --git a/applications/lazstats/source/forms/analysis/descriptive/xvsmultyunit.pas b/applications/lazstats/source/forms/analysis/descriptive/xvsmultyunit.pas
index 86004cf13..5e442b38c 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/xvsmultyunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/xvsmultyunit.pas
@@ -73,7 +73,7 @@ implementation
 uses
   {$IFDEF USE_TACHART}
   TAChartUtils,
-  ChartUnit,
+  ChartFrameUnit, ChartUnit,
   {$ELSE}
   BlankFrmUnit,
   {$ENDIF}
diff --git a/applications/lazstats/source/forms/misc/chartunit.lfm b/applications/lazstats/source/forms/misc/chartunit.lfm
index 5a7a19556..39348d7e6 100644
--- a/applications/lazstats/source/forms/misc/chartunit.lfm
+++ b/applications/lazstats/source/forms/misc/chartunit.lfm
@@ -79,7 +79,7 @@ object ChartForm: TChartForm
       TabOrder = 2
     end
   end
-  object Panel1: TPanel
+  object ChartPanel: TPanel
     Left = 6
     Height = 444
     Top = 6
@@ -88,67 +88,9 @@ object ChartForm: TChartForm
     BorderSpacing.Around = 6
     BevelOuter = bvNone
     BorderStyle = bsSingle
-    Caption = 'Panel1'
-    ClientHeight = 440
-    ClientWidth = 684
+    Caption = 'ChartPanel'
     Color = clWhite
     ParentColor = False
     TabOrder = 1
-    object Chart: TChart
-      Left = 6
-      Height = 428
-      Top = 6
-      Width = 672
-      AxisList = <      
-        item
-          Grid.Color = clSilver
-          Grid.Style = psSolid
-          Grid.Visible = False
-          Marks.LabelBrush.Style = bsClear
-          Minors = <>
-          Title.LabelFont.Orientation = 900
-          Title.LabelFont.Style = [fsBold]
-          Title.LabelBrush.Style = bsClear
-        end      
-        item
-          Grid.Color = clSilver
-          Grid.Style = psSolid
-          Grid.Visible = False
-          Intervals.MaxLength = 80
-          Intervals.MinLength = 30
-          Alignment = calBottom
-          Marks.LabelBrush.Style = bsClear
-          Minors = <>
-          Title.LabelFont.Style = [fsBold]
-          Title.LabelBrush.Style = bsClear
-        end>
-      BackColor = clWhite
-      Foot.Brush.Color = clBtnFace
-      Foot.Brush.Style = bsClear
-      Foot.Font.Color = clBlue
-      Margins.Left = 8
-      Margins.Top = 8
-      Margins.Right = 8
-      Margins.Bottom = 8
-      Title.Brush.Color = clBtnFace
-      Title.Brush.Style = bsClear
-      Title.Font.Color = clBlue
-      Title.Font.Style = [fsBold]
-      Title.Text.Strings = (
-        'TAChart'
-      )
-      Align = alClient
-      BorderSpacing.Around = 6
-      Color = clWhite
-    end
-  end
-  object SavePictureDialog: TSavePictureDialog
-    Filter = 'Graphic (*.png;*.bmp;*.jpeg;*.jpg;*.jpe;*.jfif;*.svg)|*.png;*.bmp;*.jpeg;*.jpg;*.jpe;*.jfif;*.svg|Portable Network Graphic (*.png)|*.png|Bitmaps (*.bmp)|*.bmp|Joint Picture Expert Group (*.jpeg;*.jpg;*.jpe;*.jfif)|*.jpeg;*.jpg;*.jpe;*.jfif|Scaleable Vector Graphic (*.svg)|*.svg|All Files (*.*)|*.*'
-    Left = 408
-    Top = 136
-  end
-  object PrintDialog: TPrintDialog
-    Left = 408
-    Top = 194
   end
 end
diff --git a/applications/lazstats/source/forms/misc/chartunit.pas b/applications/lazstats/source/forms/misc/chartunit.pas
index 1fa5ba14c..d240c735f 100644
--- a/applications/lazstats/source/forms/misc/chartunit.pas
+++ b/applications/lazstats/source/forms/misc/chartunit.pas
@@ -5,38 +5,33 @@ unit ChartUnit;
 interface
 
 uses
-  Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, ExtCtrls,
-  StdCtrls, ExtDlgs, PrintersDlgs,
-  TAGraph, TACustomSeries, TASeries, TATypes,
-  Globals;
+  Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs,
+  StdCtrls, ExtCtrls,
+  TAGraph, TATypes, TACustomSeries, TASeries,
+  Globals, ChartFrameUnit;
 
 type
 
-  TPlotType = (ptLines, ptSymbols, ptLinesAndSymbols, ptHorBars, ptVertBars,
-    ptArea);
-
   { TChartForm }
 
   TChartForm = class(TForm)
     ButtonBevel: TBevel;
-    Chart: TChart;
     CloseBtn: TButton;
     ButtonPanel: TPanel;
-    Panel1: TPanel;
+    ChartPanel: TPanel;
     PrintBtn: TButton;
-    PrintDialog: TPrintDialog;
     SaveBtn: TButton;
-    SavePictureDialog: TSavePictureDialog;
     procedure CloseBtnClick(Sender: TObject);
     procedure FormActivate(Sender: TObject);
     procedure FormCreate(Sender: TObject);
     procedure PrintBtnClick(Sender: TObject);
     procedure SaveBtnClick(Sender: TObject);
+
   private
-    procedure Constline(xy: Double; ADirection: TLineStyle;
-      AColor: TColor; ALineStyle: TPenStyle; ALegendTitle: String);
+    function GetChart: TChart;
 
   public
+    ChartFrame: TChartFrame;
     procedure Clear;
 
     procedure GetXRange(out XMin, XMax: Double; Logical: Boolean = true);
@@ -52,6 +47,8 @@ type
     procedure SetXTitle(const ATitle: String);
     procedure SetYTitle(const ATitle: String);
 
+    property Chart: TChart read GetChart;
+
   end;
 
 var
@@ -62,21 +59,18 @@ implementation
 {$R *.lfm}
 
 uses
-  Math, Printers, OSPrinters,
-  TAChartUtils, TADrawerSVG, TAPrint;
+  Math;
+
 
 { TChartForm }
 
 procedure TChartForm.Clear;
 begin
   Caption := 'Plot Window';
-  Chart.ClearSeries;
-  Chart.Title.Text.Clear;
-  Chart.Foot.Text.Clear;
-  Chart.BottomAxis.Title.Caption := '';
-  Chart.LeftAxis.Title.Caption := '';
+  ChartFrame.Clear;
 end;
 
+
 procedure TChartForm.FormActivate(Sender: TObject);
 var
   w: Integer;
@@ -87,169 +81,95 @@ begin
   CloseBtn.Constraints.MinWidth := w;
 end;
 
+
 procedure TChartForm.CloseBtnClick(Sender: TObject);
 begin
   Close;
 end;
 
+
 procedure TChartForm.FormCreate(Sender: TObject);
 begin
-  Clear;
+  ChartFrame := TChartFrame.Create(self);
+  ChartFrame.parent := ChartPanel;
+  ChartFrame.Align := alClient;
 end;
 
+
 procedure TChartForm.PrintBtnClick(Sender: TObject);
-const
-  MARGIN = 10;
-var
-  R: TRect;
-  d: Integer;
 begin
-  if not PrintDialog.Execute then
-    exit;
-
-  Printer.BeginDoc;
-  try
-    R := Rect(0, 0, Printer.PageWidth, Printer.PageHeight div 2);
-
-    d := R.Right - R.Left;
-    R.Left += d div MARGIN;
-    R.Right -= d div MARGIN;
-
-    d := R.Bottom - R.Top;
-    R.Top += d div MARGIN;
-    R.Bottom -= d div MARGIN;
-
-    Chart.Draw(TPrinterDrawer.Create(Printer, true), R);
-  finally
-    Printer.EndDoc;
-  end;
+  ChartFrame.Print;
 end;
 
+
+function TChartForm.GetChart: TChart;
+begin
+  Result := ChartFrame.Chart;
+end;
+
+
 procedure TChartForm.GetXRange(out XMin, XMax: Double; Logical: Boolean = true);
-var
-  ext: TDoubleRect;
 begin
-  if Logical then
-    ext := Chart.LogicalExtent
-  else
-    ext := Chart.CurrentExtent;
-  XMin := ext.a.x;
-  XMax := ext.b.x;
+  ChartFrame.GetXRange(XMin, XMax, Logical);
 end;
 
+
 procedure TChartForm.GetYRange(out YMin, YMax: Double; Logical: Boolean = true);
-var
-  ext: TDoubleRect;
 begin
-  if Logical then
-    ext := Chart.LogicalExtent
-  else
-    ext := Chart.CurrentExtent;
-  YMin := ext.a.y;
-  YMax := ext.b.y;
+  ChartFrame.GetYRange(YMin, YMax, Logical);
 end;
 
+
 procedure TChartForm.HorLine(y: Double; AColor: TColor; ALineStyle: TPenStyle;
   ALegendTitle: String);
 begin
-  ConstLine(y, lsHorizontal, AColor, ALineStyle, ALegendTitle);
+  ChartFrame.HorLine(y, AColor, ALineStyle, ALegendTitle);
 end;
 
+
 procedure TChartForm.VertLine(x: Double; AColor: TColor; ALineStyle: TPenStyle;
   ALegendTitle: String);
 begin
-  ConstLine(x, lsVertical, AColor, ALineStyle, ALegendTitle);
+  ChartFrame.VertLine(x, AColor, ALineStyle, ALegendTitle);
 end;
 
-procedure TChartForm.Constline(xy: Double; ADirection: TLineStyle;
-  AColor: TColor; ALineStyle: TPenStyle; ALegendTitle: String);
-var
-  ser: TConstantLine;
-begin
-  ser := TConstantLine.Create(self);
-  ser.Position := xy;
-  ser.LineStyle := ADirection;
-  ser.Pen.Color := AColor;
-  ser.Pen.Style := ALineStyle;
-  ser.Title := ALegendTitle;
-  ser.Legend.Visible := ALegendTitle <> '';
-  Chart.AddSeries(ser);
-end;
 
 function TChartForm.PlotXY(AType: TPlotType; x, y: DblDyneVec;
   LegendTitle: string; AColor: TColor; ASymbol: TSeriesPointerStyle = psCircle): TChartSeries;
-var
-  i, n: Integer;
 begin
-  case AType of
-    ptLines, ptSymbols, ptLinesAndSymbols:
-      begin
-        Result := TLineSeries.Create(self);
-        TLineSeries(Result).ShowPoints := AType in [ptSymbols, ptLinesAndSymbols];
-        TLineSeries(Result).ShowLines := AType in [ptLines, ptLinesAndSymbols];
-        TLineSeries(Result).SeriesColor := AColor;
-        if AType in [ptSymbols, ptLinesAndSymbols] then
-        begin
-          TLineSeries(Result).Pointer.Brush.Color := AColor;
-          TLineSeries(Result).Pointer.Style := ASymbol;
-        end;
-      end;
-    ptHorBars, ptVertBars:
-      Result := TBarSeries.Create(self);
-    ptArea:
-      Result := TAreaSeries.Create(self);
-    else
-      raise Exception.Create('Unknown plot type.');
-  end;
-
-  n := Min(Length(x), Length(y));
-  for i := 0 to n-1 do
-    Result.AddXY(x[i], y[i]);
-
-  Result.Title := LegendTitle;
-  Chart.AddSeries(Result);
-  Chart.Legend.Visible := Chart.SeriesCount > 0;
+  Result := ChartFrame.PlotXY(AType, x, y, LegendTitle, AColor, ASymbol);
 end;
 
+
 procedure TChartForm.SaveBtnClick(Sender: TObject);
-var
-  ext: String;
 begin
-  if SavePictureDialog.Execute then
-  begin
-    ext := Lowercase(ExtractFileExt(SavePictureDialog.FileName));
-    case ext of
-      '.bmp': Chart.SaveToFile(TBitmap, SavePictureDialog.Filename);
-      '.png': Chart.SaveToFile(TPortableNetworkGraphic, SavePictureDialog.FileName);
-      '.jpg', '.jpeg', '.jpe', '.jfif': Chart.SaveToFile(TJpegImage, SavePictureDialog.FileName);
-      '.svg': Chart.SaveToSVGFile(SavePictureDialog.FileName);
-    end;
-  end;
+  ChartFrame.Save;
 end;
 
+
 procedure TChartForm.SetFooter(const ATitle: String);
 begin
-  Chart.Foot.Text.Text := ATitle;
-  Chart.Foot.Visible := ATitle <> '';
+  ChartFrame.SetFooter(ATitle);
 end;
 
+
 procedure TChartForm.SetTitle(const ATitle: String);
 begin
-  Chart.Title.Text.Text := ATitle;
-  Chart.Title.Visible := ATitle <> '';
+  ChartFrame.SetTitle(ATitle);
 end;
 
+
 procedure TChartForm.SetXTitle(const ATitle: String);
 begin
-  Chart.BottomAxis.Title.Caption := ATitle;
-  Chart.BottomAxis.Title.Visible := ATitle <> '';
+  ChartFrame.SetXTitle(ATitle);
 end;
 
+
 procedure TChartForm.SetYTitle(const ATitle: String);
 begin
-  Chart.LeftAxis.Title.Caption := ATitle;
-  Chart.LeftAxis.Title.Visible := ATitle <> '';
+  ChartFrame.SetYTitle(ATitle);
 end;
 
+
 end.
 
diff --git a/applications/lazstats/source/frames/chartframeunit.lfm b/applications/lazstats/source/frames/chartframeunit.lfm
new file mode 100644
index 000000000..a8187a005
--- /dev/null
+++ b/applications/lazstats/source/frames/chartframeunit.lfm
@@ -0,0 +1,56 @@
+object ChartFrame: TChartFrame
+  Left = 0
+  Height = 403
+  Top = 0
+  Width = 620
+  ClientHeight = 403
+  ClientWidth = 620
+  TabOrder = 0
+  DesignLeft = 353
+  DesignTop = 156
+  object Chart: TChart
+    Left = 0
+    Height = 403
+    Top = 0
+    Width = 620
+    AxisList = <    
+      item
+        Grid.Color = clSilver
+        Marks.LabelBrush.Style = bsClear
+        Minors = <>
+        Title.LabelFont.Orientation = 900
+        Title.LabelFont.Style = [fsBold]
+        Title.LabelBrush.Style = bsClear
+      end    
+      item
+        Grid.Color = clSilver
+        Alignment = calBottom
+        Marks.LabelBrush.Style = bsClear
+        Minors = <>
+        Title.LabelFont.Style = [fsBold]
+        Title.LabelBrush.Style = bsClear
+      end>
+    BackColor = clWhite
+    Foot.Brush.Color = clBtnFace
+    Foot.Brush.Style = bsClear
+    Foot.Font.Color = clBlue
+    Title.Brush.Color = clBtnFace
+    Title.Brush.Style = bsClear
+    Title.Font.Color = clBlue
+    Title.Font.Style = [fsBold]
+    Title.Text.Strings = (
+      'TAChart'
+    )
+    Align = alClient
+    Color = clWhite
+  end
+  object PrintDialog: TPrintDialog
+    Left = 279
+    Top = 102
+  end
+  object SavePictureDialog: TSavePictureDialog
+    Filter = 'Graphic (*.png;*.bmp;*.jpeg;*.jpg;*.jpe;*.jfif;*.svg)|*.png;*.bmp;*.jpeg;*.jpg;*.jpe;*.jfif;*.svg|Portable Network Graphic (*.png)|*.png|Bitmaps (*.bmp)|*.bmp|Joint Picture Expert Group (*.jpeg;*.jpg;*.jpe;*.jfif)|*.jpeg;*.jpg;*.jpe;*.jfif|Scaleable Vector Graphic (*.svg)|*.svg|All Files (*.*)|*.*'
+    Left = 279
+    Top = 184
+  end
+end
diff --git a/applications/lazstats/source/frames/chartframeunit.pas b/applications/lazstats/source/frames/chartframeunit.pas
new file mode 100644
index 000000000..9d0b542ed
--- /dev/null
+++ b/applications/lazstats/source/frames/chartframeunit.pas
@@ -0,0 +1,230 @@
+unit ChartFrameUnit;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils, Forms, Controls, Graphics, ExtDlgs, PrintersDlgs,
+  TAGraph, TATypes, TACustomSeries, TASeries,
+  Globals;
+
+type
+  TPlotType = (ptLines, ptSymbols, ptLinesAndSymbols, ptHorBars, ptVertBars,
+    ptArea);
+
+  { TChartFrame }
+
+  TChartFrame = class(TFrame)
+    Chart: TChart;
+    PrintDialog: TPrintDialog;
+    SavePictureDialog: TSavePictureDialog;
+
+  protected
+    procedure Constline(xy: Double; ADirection: TLineStyle; AColor: TColor;
+      ALineStyle: TPenStyle; ALegendTitle: String);
+
+  public
+    procedure Clear;
+    procedure GetXRange(out XMin, XMax: Double; Logical: Boolean = true);
+    procedure GetYRange(out YMin, YMax: Double; Logical: Boolean = true);
+    procedure HorLine(y: Double; AColor: TColor; ALineStyle: TPenStyle;
+      ALegendTitle: String);
+    function PlotXY(AType: TPlotType; x, y: DblDyneVec; LegendTitle: string;
+      AColor: TColor; ASymbol: TSeriesPointerStyle = psCircle): TChartSeries;
+    procedure Print;
+    procedure Save;
+    procedure SetFooter(const ATitle: String);
+    procedure SetTitle(const ATitle: String);
+    procedure SetXTitle(const ATitle: String);
+    procedure SetYTitle(const ATitle: String);
+    procedure VertLine(x: Double; AColor: TColor; ALineStyle: TPenStyle;
+      ALegendTitle: String);
+  end;
+
+implementation
+
+{$R *.lfm}
+
+uses
+  Math, Printers, OSPrinters,
+  TAChartUtils, TADrawerSVG, TAPrint;
+
+procedure TChartFrame.Clear;
+begin
+  Chart.ClearSeries;
+  Chart.Title.Text.Clear;
+  Chart.Foot.Text.Clear;
+  Chart.BottomAxis.Title.Caption := '';
+  Chart.LeftAxis.Title.Caption := '';
+end;
+
+
+procedure TChartFrame.Constline(xy: Double; ADirection: TLineStyle;
+  AColor: TColor; ALineStyle: TPenStyle; ALegendTitle: String);
+var
+  ser: TConstantLine;
+begin
+  ser := TConstantLine.Create(self);
+  ser.Position := xy;
+  ser.LineStyle := ADirection;
+  ser.Pen.Color := AColor;
+  ser.Pen.Style := ALineStyle;
+  ser.Title := ALegendTitle;
+  ser.Legend.Visible := ALegendTitle <> '';
+  Chart.AddSeries(ser);
+end;
+
+
+procedure TChartFrame.GetXRange(out XMin, XMax: Double; Logical: Boolean = true);
+var
+  ext: TDoubleRect;
+begin
+  if Logical then
+    ext := Chart.LogicalExtent
+  else
+    ext := Chart.CurrentExtent;
+  XMin := ext.a.x;
+  XMax := ext.b.x;
+end;
+
+
+procedure TChartFrame.GetYRange(out YMin, YMax: Double; Logical: Boolean = true);
+var
+  ext: TDoubleRect;
+begin
+  if Logical then
+    ext := Chart.LogicalExtent
+  else
+    ext := Chart.CurrentExtent;
+  YMin := ext.a.y;
+  YMax := ext.b.y;
+end;
+
+
+procedure TChartFrame.HorLine(y: Double; AColor: TColor; ALineStyle: TPenStyle;
+  ALegendTitle: String);
+begin
+  ConstLine(y, lsHorizontal, AColor, ALineStyle, ALegendTitle);
+end;
+
+
+procedure TChartFrame.VertLine(x: Double; AColor: TColor; ALineStyle: TPenStyle;
+  ALegendTitle: String);
+begin
+  ConstLine(x, lsVertical, AColor, ALineStyle, ALegendTitle);
+end;
+
+
+function TChartFrame.PlotXY(AType: TPlotType; x, y: DblDyneVec;
+  LegendTitle: string; AColor: TColor; ASymbol: TSeriesPointerStyle = psCircle): TChartSeries;
+var
+  i, n: Integer;
+begin
+  case AType of
+    ptLines, ptSymbols, ptLinesAndSymbols:
+      begin
+        Result := TLineSeries.Create(self);
+        TLineSeries(Result).ShowPoints := AType in [ptSymbols, ptLinesAndSymbols];
+        TLineSeries(Result).ShowLines := AType in [ptLines, ptLinesAndSymbols];
+        TLineSeries(Result).SeriesColor := AColor;
+        if AType in [ptSymbols, ptLinesAndSymbols] then
+        begin
+          TLineSeries(Result).Pointer.Brush.Color := AColor;
+          TLineSeries(Result).Pointer.Style := ASymbol;
+        end;
+      end;
+    ptHorBars, ptVertBars:
+      Result := TBarSeries.Create(self);
+    ptArea:
+      Result := TAreaSeries.Create(self);
+    else
+      raise Exception.Create('Unknown plot type.');
+  end;
+
+  n := Min(Length(x), Length(y));
+  for i := 0 to n-1 do
+    Result.AddXY(x[i], y[i]);
+
+  Result.Title := LegendTitle;
+  Chart.AddSeries(Result);
+  Chart.Legend.Visible := Chart.SeriesCount > 0;
+end;
+
+
+procedure TChartFrame.Print;
+const
+  MARGIN = 10;
+var
+  R: TRect;
+  d: Integer;
+begin
+  if not PrintDialog.Execute then
+    exit;
+
+  Printer.BeginDoc;
+  try
+    R := Rect(0, 0, Printer.PageWidth, Printer.PageHeight div 2);
+
+    d := R.Right - R.Left;
+    R.Left += d div MARGIN;
+    R.Right -= d div MARGIN;
+
+    d := R.Bottom - R.Top;
+    R.Top += d div MARGIN;
+    R.Bottom -= d div MARGIN;
+
+    Chart.Draw(TPrinterDrawer.Create(Printer, true), R);
+  finally
+    Printer.EndDoc;
+  end;
+end;
+
+
+procedure TChartFrame.Save;
+var
+  ext: String;
+begin
+  if SavePictureDialog.Execute then
+  begin
+    ext := Lowercase(ExtractFileExt(SavePictureDialog.FileName));
+    case ext of
+      '.bmp': Chart.SaveToFile(TBitmap, SavePictureDialog.Filename);
+      '.png': Chart.SaveToFile(TPortableNetworkGraphic, SavePictureDialog.FileName);
+      '.jpg', '.jpeg', '.jpe', '.jfif': Chart.SaveToFile(TJpegImage, SavePictureDialog.FileName);
+      '.svg': Chart.SaveToSVGFile(SavePictureDialog.FileName);
+    end;
+  end;
+end;
+
+
+procedure TChartFrame.SetFooter(const ATitle: String);
+begin
+  Chart.Foot.Text.Text := ATitle;
+  Chart.Foot.Visible := ATitle <> '';
+end;
+
+
+procedure TChartFrame.SetTitle(const ATitle: String);
+begin
+  Chart.Title.Text.Text := ATitle;
+  Chart.Title.Visible := ATitle <> '';
+end;
+
+
+procedure TChartFrame.SetXTitle(const ATitle: String);
+begin
+  Chart.BottomAxis.Title.Caption := ATitle;
+  Chart.BottomAxis.Title.Visible := ATitle <> '';
+end;
+
+
+procedure TChartFrame.SetYTitle(const ATitle: String);
+begin
+  Chart.LeftAxis.Title.Caption := ATitle;
+  Chart.LeftAxis.Title.Visible := ATitle <> '';
+end;
+
+
+end.
+