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unit Main;
{$mode objfpc}{$H+}
interface
uses
Classes, ComCtrls, ExtCtrls, StdCtrls, SysUtils, FileUtil, Forms, Controls,
Graphics, Dialogs, TAGraph, TAGUIConnectorBGRA, TASeries, TASources,
TAAnimatedSource, TACustomSource, BGRASliceScaling;
type
{ TForm1 }
TForm1 = class(TForm)
btnStartStop: TButton;
cbAntialiasing: TCheckBox;
cbPie: TCheckBox;
ChartGUIConnectorBGRA1: TChartGUIConnectorBGRA;
cbUseConnector: TCheckBox;
chSimple: TChart;
chSimpleAreaSeries1: TAreaSeries;
chSimpleBarSeries1: TBarSeries;
chSimpleLineSeries1: TLineSeries;
chSimplePieSeries1: TPieSeries;
chBarEffects: TChart;
chBarEffectsBarSeries1: TBarSeries;
Image1: TImage;
ListChartSource1: TListChartSource;
PageControl1: TPageControl;
PaintBox1: TPaintBox;
Panel1: TPanel;
Panel2: TPanel;
RandomChartSource1: TRandomChartSource;
rgAnimation: TRadioGroup;
rgStyle: TRadioGroup;
Splitter1: TSplitter;
tsSimple: TTabSheet;
tsBarEffects: TTabSheet;
procedure btnStartStopClick(Sender: TObject);
procedure cbAntialiasingChange(Sender: TObject);
procedure cbPieChange(Sender: TObject);
procedure cbUseConnectorChange(Sender: TObject);
procedure chSimpleAfterPaint(ASender: TChart);
procedure chBarEffectsBarSeries1BeforeDrawBar(ASender: TBarSeries;
ACanvas: TCanvas; const ARect: TRect; APointIndex, AStackIndex: Integer;
var ADoDefaultDrawing: Boolean);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure PaintBox1Paint(Sender: TObject);
procedure rgAnimationClick(Sender: TObject);
procedure rgStyleClick(Sender: TObject);
private
FAnimatedSource: TCustomAnimatedChartSource;
FSliceScaling: TBGRASliceScaling;
procedure OnGetItem(
ASource: TCustomAnimatedChartSource;
AIndex: Integer; var AItem: TChartDataItem);
end;
var
Form1: TForm1;
implementation
{$R *.lfm}
uses
Math, BGRABitmap, BGRABitmapTypes, BGRAGradients,
TABGRAUtils, TAChartUtils, TADrawerBGRA, TADrawerCanvas, TADrawUtils,
TAGeometry;
{ TForm1 }
procedure TForm1.btnStartStopClick(Sender: TObject);
begin
if FAnimatedSource.IsAnimating then
FAnimatedSource.Stop
else
FAnimatedSource.Start;
end;
procedure TForm1.cbAntialiasingChange(Sender: TObject);
begin
if cbAntialiasing.Checked then
chSimple.AntialiasingMode := amOn
else
chSimple.AntialiasingMode := amOff;
end;
procedure TForm1.cbPieChange(Sender: TObject);
begin
chSimplePieSeries1.Active := cbPie.Checked;
end;
procedure TForm1.cbUseConnectorChange(Sender: TObject);
begin
if cbUseConnector.Checked then
chSimple.GUIConnector := ChartGUIConnectorBGRA1
else
chSimple.GUIConnector := nil;
end;
procedure TForm1.chSimpleAfterPaint(ASender: TChart);
begin
Unused(ASender);
PaintBox1.Invalidate;
end;
procedure TForm1.chBarEffectsBarSeries1BeforeDrawBar(ASender: TBarSeries;
ACanvas: TCanvas; const ARect: TRect; APointIndex, AStackIndex: Integer;
var ADoDefaultDrawing: Boolean);
var
temp, stretched: TBGRABitmap;
sz: TPoint;
lightPos: TPoint;
begin
Unused(ASender);
Unused(APointIndex, AStackIndex);
ADoDefaultDrawing := false;
sz := ARect.BottomRight - ARect.TopLeft;
case rgStyle.ItemIndex of
0: begin
temp := TBGRABitmap.Create(
FSliceScaling.BitmapWidth,
Round(FSliceScaling.BitmapWidth * sz.Y / sz.X));
stretched := nil;
try
FSliceScaling.Draw(temp, 0, 0, temp.Width, temp.Height);
temp.ResampleFilter := rfLinear;
stretched := temp.Resample(sz.x, sz.Y, rmFineResample) as TBGRABitmap;
stretched.Draw(ACanvas, ARect, False);
finally
temp.Free;
stretched.Free;
end;
end;
1: DrawChocolateBar(ASender, ACanvas, ARect, APointIndex, false);
2: DrawPhong3DBar(ASender, ACanvas, ARect, APointIndex);
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
FAnimatedSource := TCustomAnimatedChartSource.Create(Self);
FAnimatedSource.Origin := ListChartSource1;
FAnimatedSource.AnimationInterval := 30;
FAnimatedSource.AnimationTime := 1000;
FAnimatedSource.OnGetItem := @OnGetItem;
chBarEffectsBarSeries1.Source := FAnimatedSource;
chBarEffects.BackColor:= BGRAToColor(CSSDarkSlateBlue);
chSimple.BackColor:= BGRAToColor(CSSYellowGreen);
chSimple.Color:= BGRAToColor(CSSYellowGreen);
chSimple.BackColor := BGRAToColor(CSSBeige);
FSliceScaling := TBGRASliceScaling.Create(Image1.Picture.Bitmap, 70, 0, 35, 0);
FSliceScaling.AutodetectRepeat;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
FSliceScaling.Free;
end;
procedure TForm1.PaintBox1Paint(Sender: TObject);
var
bmp: TBGRABitmap;
id: IChartDrawer;
rp: TChartRenderingParams;
begin
bmp := TBGRABitmap.Create(PaintBox1.Width, PaintBox1.Height);
chSimple.DisableRedrawing;
try
chSimple.Title.Text.Text := 'BGRABitmap';
id := TBGRABitmapDrawer.Create(bmp);
id.DoGetFontOrientation := @CanvasGetFontOrientationFunc;
rp := chSimple.RenderingParams;
chSimple.Draw(id, Rect(0, 0, PaintBox1.Width, PaintBox1.Height));
chSimple.RenderingParams := rp;
bmp.Draw(PaintBox1.Canvas, 0, 0);
chSimple.Title.Text.Text := 'Standard';
finally
chSimple.EnableRedrawing;
bmp.Free;
end;
end;
procedure TForm1.OnGetItem(
ASource: TCustomAnimatedChartSource;
AIndex: Integer; var AItem: TChartDataItem);
begin
case rgAnimation.ItemIndex of
0: AItem.Y *= ASource.Progress;
1:
if ASource.Count * ASource.Progress < AIndex then
AItem.Y := 0;
2:
case Sign(Trunc(ASource.Count * ASource.Progress) - AIndex) of
0: AItem.Y *= Frac(ASource.Count * ASource.Progress);
-1: AItem.Y := 0;
end;
end;
end;
procedure TForm1.rgAnimationClick(Sender: TObject);
begin
FAnimatedSource.Start;
end;
procedure TForm1.rgStyleClick(Sender: TObject);
var
d: Integer;
begin
d := IfThen(rgStyle.ItemIndex = 2, 10, 0);
chBarEffects.Depth := d;
chBarEffectsBarSeries1.Depth := d;
chBarEffectsBarSeries1.ZPosition := d;
chBarEffects.BottomAxis.ZPosition := d;
FAnimatedSource.Start;
end;
end.
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