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| unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, ExtCtrls,
StdCtrls, ExtDlgs, BGRABitmap;
type
{ TForm1 }
TForm1 = class(TForm)
Button1: TButton;
OPD: TOpenDialog;
Timer1: TTimer;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormPaint(Sender: TObject);
procedure Timer1Timer(Sender: TObject);
private
{ private declarations }
public
{ public declarations }
image: TBGRABitmap;
end;
var
Form1: TForm1;
implementation
{$R *.lfm}
{ TForm1 }
procedure TForm1.FormCreate(Sender: TObject);
begin
image := TBGRABitmap.Create(1,1);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
if opd.execute then
begin
image.LoadFromFileUTF8(opd.FileName);
end;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
image.Free;
end;
procedure TForm1.FormPaint(Sender: TObject);
var stretched: TBGRABitmap;
begin
stretched := image.Resample(ClientWidth, ClientHeight) as TBGRABitmap;
stretched.Draw(Canvas,0,0,True);
stretched.Free;
end;
end. |
