oleform.pas

Delphi实效编程百例的随书源代码 这是其中的程序控制部分

unit Oleform;

interface

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

type
  TForm1 = class(TForm)
    MainMenu1: TMainMenu;
    File1: TMenuItem;
    Exit1: TMenuItem;
    N2: TMenuItem;
    SaveAs1: TMenuItem;
    Open1: TMenuItem;
    New1: TMenuItem;
    Edit1: TMenuItem;
    Object1: TMenuItem;
    N3: TMenuItem;
    PasteSpecial1: TMenuItem;
    Paste1: TMenuItem;
    Copy1: TMenuItem;
    Cut1: TMenuItem;
    MainPanel: TPanel;
    OleContainer1: TOleContainer;
    OpenDialog1: TOpenDialog;
    SaveDialog1: TSaveDialog;
    procedure Exit1Click(Sender: TObject);
    procedure New1Click(Sender: TObject);
    procedure Paste1Click(Sender: TObject);
    procedure PasteSpecial1Click(Sender: TObject);
    procedure Edit1Click(Sender: TObject);
    procedure Copy1Click(Sender: TObject);
    procedure Cut1Click(Sender: TObject);
    procedure Object1Click(Sender: TObject);
    procedure Open1Click(Sender: TObject);
    procedure SaveAs1Click(Sender: TObject);
  private
    { Private declarations }
    procedure UpdateUI;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

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

procedure TForm1.New1Click(Sender: TObject);
// 新建OLE对象
begin
  if OleContainer1.InsertObjectDialog then
    OleContainer1.DoVerb (
      OleContainer1.PrimaryVerb);
  UpdateUI;
end;

procedure TForm1.Paste1Click(Sender: TObject);
begin
  OleContainer1.Paste;
  UpdateUI;
end;

procedure TForm1.PasteSpecial1Click(Sender: TObject);
begin
  OleContainer1.PasteSpecialDialog;
  UpdateUI;
end;

procedure TForm1.Edit1Click(Sender: TObject);
begin
  UpdateUI;
end;

procedure TForm1.UpdateUI;
begin
  Cut1.Enabled := OleContainer1.State <> osEmpty;
  Copy1.Enabled := OleContainer1.State <> osEmpty;
  Object1.Enabled := OleContainer1.State <> osEmpty;
  Paste1.Enabled := OleContainer1.CanPaste;
  PasteSpecial1.Enabled := OleContainer1.CanPaste;
end;

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

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

procedure TForm1.Object1Click(Sender: TObject);
begin
  OleContainer1.ObjectPropertiesDialog;
end;

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

procedure TForm1.SaveAs1Click(Sender: TObject);
begin
  if SaveDialog1.Execute then
    OleContainer1.SaveToFile (SaveDialog1.FileName);
end;


end.