mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-05-11 15:02:36 +02:00
109 lines
2.5 KiB
ObjectPascal
109 lines
2.5 KiB
ObjectPascal
unit Main;
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
interface
|
|
|
|
uses
|
|
Classes, ExtCtrls, StdCtrls, SysUtils, FileUtil, Forms, Controls,
|
|
Graphics, FPCanvas, Dialogs,
|
|
Agg_LCL, Agg_FPImage,
|
|
TAGraph, TAGUIConnectorAggPas, TASeries, TASources, TADrawerAggPas, TADrawUtils;
|
|
|
|
type
|
|
|
|
{ TMainForm }
|
|
|
|
TMainForm = class(TForm)
|
|
Bevel1: TBevel;
|
|
cbAggPas: TCheckBox;
|
|
Chart: TChart;
|
|
ChartConstantLine: TConstantLine;
|
|
ChartLineSeries: TLineSeries;
|
|
ChartPieSeries: TPieSeries;
|
|
ChartGUIConnectorAggPas: TChartGUIConnectorAggPas;
|
|
ChartPaintBox: TPaintBox;
|
|
BottomPanel: TPanel;
|
|
RandomChartSource: TRandomChartSource;
|
|
procedure cbAggPasClick(Sender: TObject);
|
|
procedure Chart1AfterPaint(ASender: TChart);
|
|
procedure FormCreate(Sender: TObject);
|
|
procedure FormDestroy(Sender: TObject);
|
|
procedure ChartPaintBoxPaint(Sender: TObject);
|
|
private
|
|
FAggCanvas: TAggLCLCanvas;
|
|
FBmp: TBitmap;
|
|
end;
|
|
|
|
var
|
|
MainForm: TMainForm;
|
|
|
|
implementation
|
|
|
|
{$R *.lfm}
|
|
|
|
uses
|
|
TAChartUtils, TADrawerCanvas;
|
|
|
|
{ TMainForm }
|
|
|
|
procedure TMainForm.cbAggPasClick(Sender: TObject);
|
|
begin
|
|
if cbAggPas.Checked then
|
|
Chart.GUIConnector := ChartGUIConnectorAggPas
|
|
else
|
|
Chart.GUIConnector := nil;
|
|
end;
|
|
|
|
procedure TMainForm.Chart1AfterPaint(ASender: TChart);
|
|
begin
|
|
Unused(ASender);
|
|
ChartPaintBox.Invalidate;
|
|
end;
|
|
|
|
procedure TMainForm.FormCreate(Sender: TObject);
|
|
begin
|
|
FBmp := TBitmap.Create;
|
|
FAggCanvas := TAggLCLCanvas.Create;
|
|
FAggCanvas.Image.PixelFormat := afpimRGBA32;
|
|
|
|
{$IFDEF LCLWin32}
|
|
ChartLineSeries.Transparency := 128;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TMainForm.FormDestroy(Sender: TObject);
|
|
begin
|
|
FAggCanvas.Free;
|
|
FBmp.Free;
|
|
end;
|
|
|
|
procedure TMainForm.ChartPaintBoxPaint(Sender: TObject);
|
|
var
|
|
d: IChartDrawer;
|
|
begin
|
|
FAggCanvas.Width := ChartPaintBox.Width;
|
|
FAggCanvas.Height := ChartPaintBox.Height;
|
|
|
|
Chart.DisableRedrawing;
|
|
Chart.Title.Text.Text := 'AggPas';
|
|
d := TAggPasDrawer.Create(FAggCanvas);
|
|
d.DoGetFontOrientation := @CanvasGetFontOrientationFunc;
|
|
Chart.Draw(d, ChartPaintBox.Canvas.ClipRect);
|
|
Chart.Title.Text.Text := 'Standard';
|
|
Chart.EnableRedrawing;
|
|
|
|
// On Windows the order of red, green and blue is blue-green-red, while on
|
|
// others it is red-green-blue. In principle, AggPas can handle this, but
|
|
// since it is not maintained ATM, I chose the "easy way" to swap the red
|
|
// and blue bytes.
|
|
{$IFNDEF LCLWin32}
|
|
SwapRedBlue(FAggCanvas.Image.IntfImg);
|
|
{$ENDIF}
|
|
FBmp.LoadFromIntfImage(FAggCanvas.Image.IntfImg);
|
|
ChartPaintBox.Canvas.Draw(0, 0, FBmp);
|
|
end;
|
|
|
|
end.
|
|
|