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unit ceMarksForm;
{$mode ObjFPC}{$H+}
interface
uses
Classes, SysUtils, Forms, Controls, Graphics, Dialogs, ButtonPanel, StdCtrls,
ExtCtrls, Spin,
TAGraph, TATextElements, TACustomSeries,
ceFontFrame, ceShapeBrushPenMarginsFrame, ceSimplePenFrame, ceArrowFrame;
type
{ TMarksForm }
TMarksForm = class(TForm)
ButtonPanel: TButtonPanel;
cbMarksCentered: TCheckBox;
cmbMarkPositions: TComboBox;
gbArrow: TGroupBox;
gbShapeBrushPenMargins: TGroupBox;
gbLinkPen: TGroupBox;
gbLabelFont: TGroupBox;
gbPosition: TGroupBox;
lblPosition: TLabel;
lblDistance: TLabel;
Panel1: TPanel;
seDistance: TSpinEdit;
procedure cbMarksCenteredChange(Sender: TObject);
procedure cmbMarkPositionsChange(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure seDistanceChange(Sender: TObject);
private
FSeries: TChartSeries;
FShapeBrushPenMarginsFrame: TChartShapeBrushPenMarginsFrame;
FLinkPenFrame: TSimpleChartPenFrame;
FFontFrame: TChartFontFrame;
FArrowFrame: TChartArrowFrame;
function GetChart: TChart;
procedure ShapeChangedHandler(AShape: TChartLabelShape);
public
procedure Prepare(ASeries: TChartSeries);
end;
var
MarksForm: TMarksForm;
implementation
{$R *.lfm}
uses
TASeries,
ceUtils;
{ TMarksForm }
procedure TMarksForm.cbMarksCenteredChange(Sender: TObject);
begin
if (FSeries is TBarSeries) then
TBarSeries(FSeries).MarkPositionCentered := cbMarksCentered.Checked;
end;
procedure TMarksForm.cmbMarkPositionsChange(Sender: TObject);
begin
if (FSeries is TLineSeries) then
TLineSeries(FSeries).MarkPositions := TLinearMarkPositions(cmbMarkPositions.ItemIndex)
else if (FSeries is TAreaSeries) then
TAreaSeries(FSeries).MarkPositions := TLinearMarkPositions(cmbMarkPositions.ItemIndex)
else if (FSeries is TBarSeries) then
TBarSeries(FSeries).MarkPositions := TLinearMarkPositions(cmbMarkPositions.ItemIndex)
else
raise Exception.Create('Series type not supported.');
end;
procedure TMarksForm.FormCreate(Sender: TObject);
begin
FFontFrame := TChartFontFrame.Create(self);
FFontFrame.Name := '';
FFontFrame.Align := alClient;
FFontFrame.BorderSpacing.Around := 8;
FFontFrame.AutoSize := true;
FFontFrame.Parent := gbLabelFont;
gbLabelFont.AutoSize := true;
gbLabelFont.Caption := 'Marks font';
FShapeBrushPenMarginsFrame := TChartShapeBrushPenMarginsFrame.Create(self);
FShapeBrushPenMarginsFrame.Name := '';
FShapeBrushPenMarginsFrame.Align := alClient;
FShapeBrushPenMarginsFrame.BorderSpacing.Around := 8;
FShapeBrushPenMarginsFrame.OnShapeChange := @ShapeChangedHandler;
FShapeBrushPenMarginsFrame.AutoSize := true;
FShapeBrushPenMarginsFrame.Parent := gbShapeBrushPenMargins;
gbShapeBrushPenMargins.AutoSize := true;
gbShapeBrushPenMargins.Caption := 'Marks shape and background';
FLinkPenFrame := TSimpleChartPenFrame.Create(self);
FLinkPenFrame.Name := '';
FLinkPenFrame.Align := alClient;
FLinkPenFrame.BorderSpacing.Around := 8;
FLinkPenFrame.AutoSize := true;
FLinkPenFrame.Parent := gbLinkPen;
gbLinkPen.AutoSize := true;
gbLinkPen.Caption := 'Link line';
FArrowFrame := TChartArrowFrame.Create(self);
FArrowFrame.Name := '';
FArrowFrame.Align := alClient;
FArrowFrame.BorderSpacing.Around := 8;
FArrowFrame.AutoSize := true;
FArrowFrame.Parent := gbArrow;
gbArrow.AutoSize := true;
gbArrow.Caption := 'Arrow';
AutoSize := true;
BoldHeaders(self);
end;
procedure TMarksForm.FormShow(Sender: TObject);
var
wf: Integer = 0;
hf: Integer = 0;
ws: Integer = 0;
hs: Integer = 0;
begin
FFontFrame.GetPreferredsize(wf, hf);
inc(wf, 2 * FLinkPenFrame.BorderSpacing.Around);
inc(hf, 2 * FLinkPenFrame.BorderSpacing.Around);
// inc(wf, FLinkPenFrame.BorderSpacing.Left + FLinkPenFrame.BorderSpacing.Right);
// inc(hf, FLinkPenFrame.BorderSpacing.Top + FLinkPenFrame.BorderSpacing.Bottom);
FShapeBrushPenMarginsFrame.GetPreferredSize(ws, hs);
inc(ws, 2 * FShapeBrushPenMarginsFrame.BorderSpacing.Around);
inc(hs, 2 * FShapeBrushPenMarginsFrame.BorderSpacing.Around);
// inc(ws, FShapeBrushPenMarginsFrame.BorderSpacing.Left + FShapeBrushPenMarginsFrame.BorderSpacing.Right);
// inc(hs, FShapeBrushPenMarginsFrame.BorderSpacing.Top + FShapeBrushPenMarginsFrame.BorderSpacing.Bottom);
if wf > ws then begin
gbShapeBrushPenMargins.AnchorSideRight.Control := gbLabelFont;
gbShapeBrushPenMargins.AnchorSideRight.Side := asrRight;
gbShapeBrushPenMargins.Anchors := gbShapeBrushPenMargins.Anchors + [akRight];
end else
begin
gbLabelFont.AnchorSideRight.Control := gbShapeBrushPenMargins;
gbLabelFont.AnchorSideRight.Side := asrRight;
gbLabelFont.Anchors := gbLabelFont.Anchors + [akRight];
end;
end;
function TMarksForm.GetChart: TChart;
begin
Result := FSeries.ParentChart;
end;
procedure TMarksForm.Prepare(ASeries: TChartSeries);
begin
FSeries := ASeries;
with ASeries.Marks do
begin
FFontFrame.Prepare(LabelFont, true);
FShapeBrushPenMarginsFrame.Prepare(Shape, LabelBrush, Frame, Margins);
FLinkPenFrame.Prepare(LinkPen);
FArrowFrame.Prepare(Arrow);
end;
seDistance.Value := ASeries.Marks.Distance;
if ASeries is TLineSeries then
begin
cmbMarkPositions.ItemIndex := ord(TLineSeries(ASeries).MarkPositions);
cbMarksCentered.Hide;
end else
if ASeries is TBarSeries then
begin
cmbMarkPositions.ItemIndex := ord(TBarSeries(ASeries).MarkPositions);
cbMarksCentered.Checked := TBarSeries(ASeries).MarkPositionCentered;
end else
if ASeries is TAreaSeries then
begin
cmbMarkPositions.ItemIndex := ord(TAreaSeries(ASeries).MarkPositions);
cbMarksCentered.Hide;
end else
begin
cmbMarkPositions.Hide;
lblPosition.Hide;
cbMarksCentered.Hide;
end;
FLinkPenFrame.WidthLeft := FArrowFrame.seArrowBaseLength.Left;
seDistance.BorderSpacing.Left := FArrowFrame.Left +
FArrowFrame.seArrowBaseLength.Left - lblDistance.Width;
end;
procedure TMarksForm.seDistanceChange(Sender: TObject);
begin
FSeries.Marks.Distance := seDistance.Value;
end;
procedure TMarksForm.ShapeChangedHandler(AShape: TChartLabelShape);
begin
FSeries.Marks.Shape := AShape;
end;
end.
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