unit MainForm;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Menus, OleCtnrs, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    MainMenu1: TMainMenu;
    File1: TMenuItem;
    Exit1: TMenuItem;
    New1: TMenuItem;
    Open1: TMenuItem;
    Save1: TMenuItem;
    N1: TMenuItem;
    OpenDialog1: TOpenDialog;
    Panel1: TPanel;
    OleContainer1: TOleContainer;
    Edit1: TMenuItem;
    Cut1: TMenuItem;
    Copy1: TMenuItem;
    Paste1: TMenuItem;
    InsertObject1: TMenuItem;
    N2: TMenuItem;
    N3: TMenuItem;
    Return1: TMenuItem;
    SaveDialog1: TSaveDialog;
    procedure New1Click(Sender: TObject);
    procedure Open1Click(Sender: TObject);
    procedure Save1Click(Sender: TObject);
    procedure Return1Click(Sender: TObject);
    procedure Exit1Click(Sender: TObject);
    procedure InsertObject1Click(Sender: TObject);
    procedure Cut1Click(Sender: TObject);
    procedure Copy1Click(Sender: TObject);
    procedure Paste1Click(Sender: TObject);
    procedure OleContainer1Activate(Sender: TObject);
    procedure OleContainer1Deactivate(Sender: TObject);
  private
    { Private declarations }
    FFileName: string;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Exit1Click(Sender: TObject);
begin
  Close;
end;

procedure TForm1.New1Click(Sender: TObject);
begin
  OleContainer1.DestroyObject;
end;

procedure TForm1.Open1Click(Sender: TObject);
begin
  if OpenDialog1.Execute then begin
    FFileName := OpenDialog1.FileName;
    OleContainer1.LoadFromFile(FFileName);
  end;
end;

procedure TForm1.Save1Click(Sender: TObject);
begin
  if FFileName = '' then begin
    if SaveDialog1.Execute then
      FFileName := SaveDialog1.FileName
    else
      exit;
  end;

  OleContainer1.SaveToFile(FFileName);
end;

procedure TForm1.Return1Click(Sender: TObject);
begin
  OleContainer1.Close;
end;

procedure TForm1.InsertObject1Click(Sender: TObject);
begin
  if OleContainer1.InsertObjectDialog then
    OleContainer1.DoVerb(OleContainer1.PrimaryVerb);
end;

procedure TForm1.Cut1Click(Sender: TObject);
begin
  OleContainer1.Copy;
  OleContainer1.DestroyObject;
end;

procedure TForm1.Copy1Click(Sender: TObject);
begin
  OleContainer1.Copy;
end;

procedure TForm1.Paste1Click(Sender: TObject);
begin
  if OleContainer1.CanPaste then
    OleContainer1.PasteSpecialDialog;
end;

procedure TForm1.OleContainer1Activate(Sender: TObject);
begin
  Return1.Enabled := True;
end;

procedure TForm1.OleContainer1Deactivate(Sender: TObject);
begin
  Return1.Enabled := False;
end;

end.