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unit drawtest;
{$mode objfpc}
interface
uses
Classes, Forms, Graphics;
type
{ TfrmDraw }
TfrmDraw = class(TForm)
procedure FormCreate(Sender: TObject);
procedure FormPaint(Sender: TObject);
private
public
end;
var
frmDraw: TfrmDraw;
implementation
{$R *.lfm}
{ TfrmDraw }
procedure TfrmDraw.FormPaint(Sender: TObject);
var
Bmp: TBitmap;
begin
Bmp := TBitmap.Create;
Bmp.Width := 50;
Bmp.Height := 50;
Bmp.Canvas.Brush.Color := clBlue;
Bmp.Canvas.Rectangle(0, 0, 50, 50);
Canvas.CopyMode := cmSrcCopy;
// BrushCopy
Canvas.TextOut(50, 30, 'CopyBrush simple');
Canvas.Brush.Color := clYellow;
Canvas.BrushCopy(Bounds(50, 50, 50, 50), Bmp, Bounds(0, 0, 50, 50), clBlue);
Canvas.TextOut(200, 30, 'CopyBrush stretch');
Canvas.Brush.Color := clYellow;
Canvas.BrushCopy(Bounds(200, 50, 20, 20), Bmp, Bounds(0, 0, 50, 50), clBlue);
Canvas.TextOut(350, 30, 'CopyBrush SrcRect');
Canvas.Brush.Color := clYellow;
Canvas.BrushCopy(Bounds(350, 50, 20, 20), Bmp, Bounds(30, 30, 20, 20), clBlue);
// CopyMode
Canvas.TextOut(50, 130, 'cmBlackness');
Canvas.CopyMode := cmBlackness;
Canvas.Draw(50, 150, Bmp);
Canvas.TextOut(150, 130, 'cmDstInvert');
Canvas.CopyMode := cmDstInvert;
Canvas.Draw(150, 150, Bmp);
Canvas.TextOut(250, 130, 'cmMergeCopy');
Canvas.CopyMode := cmMergeCopy;
Canvas.Draw(250, 150, Bmp);
Canvas.TextOut(350, 130, 'cmMergePaint');
Canvas.CopyMode := cmMergePaint;
Canvas.Draw(350, 150, Bmp);
Canvas.TextOut(450, 130, 'cmNotSrcCopy');
Canvas.CopyMode := cmNotSrcCopy;
Canvas.Draw(450, 150, Bmp);
// CopyMode line 2
Canvas.TextOut(50, 230, 'cmNotSrcErase');
Canvas.CopyMode := cmNotSrcErase;
Canvas.Draw(50, 250, Bmp);
Canvas.TextOut(150, 230, 'cmPatCopy');
Canvas.CopyMode := cmPatCopy;
Canvas.Draw(150, 250, Bmp);
Canvas.TextOut(250, 230, 'cmPatInvert');
Canvas.CopyMode := cmPatInvert;
Canvas.Draw(250, 250, Bmp);
Canvas.TextOut(350, 230, 'cmPatPaint');
Canvas.CopyMode := cmPatPaint;
Canvas.Draw(350, 250, Bmp);
Canvas.TextOut(450, 230, 'cmSrcAnd');
Canvas.CopyMode := cmSrcAnd;
Canvas.Draw(450, 250, Bmp);
// CopyMode line 3
Canvas.TextOut(50, 330, 'cmSrcCopy');
Canvas.CopyMode := cmSrcCopy;
Canvas.Draw(50, 350, Bmp);
Canvas.TextOut(150, 330, 'cmSrcErase');
Canvas.CopyMode := cmSrcErase;
Canvas.Draw(150, 350, Bmp);
Canvas.TextOut(250, 330, 'cmSrcInvert');
Canvas.CopyMode := cmSrcInvert;
Canvas.Draw(250, 350, Bmp);
Canvas.TextOut(350, 330, 'cmSrcPaint');
Canvas.CopyMode := cmSrcPaint;
Canvas.Draw(350, 350, Bmp);
Canvas.TextOut(450, 330, 'cmWhiteness');
Canvas.CopyMode := cmWhiteness;
Canvas.Draw(450, 350, Bmp);
Bmp.Free;
end;
procedure TfrmDraw.FormCreate(Sender: TObject);
begin
end;
end.
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