unit uMyApp;

interface

uses
  SysUtils, ExtCtrls, Forms;

Type
  TMyApp = class
  private
    FUserId: string;
    FUserPwd: string;
    FAdmin: Boolean;
    FTopic: string;
    FPath: string;
    FImage: TImage;
    FImgStr: string;
    FStaBirth: Boolean;

    procedure SetTopic(const Value: string);
    procedure SetImgStr(const Value: string);
  public
    constructor Create;

    property UserID: string read FUserId write FUserId;
    property UserPwd: string read FUserPwd write FUserPwd;
    property Admin: Boolean read FAdmin write FAdmin;
    property Topic: string read FTopic write SetTopic;
    property Path: string read FPath;
    property Image: TImage read FImage write FImage;
    property ImgStr: string read FImgStr write SetImgStr;
    property StaBirth: Boolean read FStaBirth write FStaBirth;
  end;

implementation

{ TApp }

constructor TMyApp.Create;
begin
  FPath := ExtractFilePath(Application.ExeName);
end;

procedure TMyApp.SetImgStr(const Value: string);
begin
  if FImgStr <> Value then
  begin
    FImgStr := Value;
    if not Assigned(FImage) then Exit;
    if Value = 'main.jpg' then
      FImage.Picture.LoadFromFile(FPath + Value)
    else if FileExists(Value) then
      FImage.Picture.LoadFromFile(Value);
  end;
end;

procedure TMyApp.SetTopic(const Value: string);
begin
  if FTopic <> Value then
  begin
    FTopic := Value;
    if Assigned(Application.MainForm) then
    begin
      Application.MainForm.Caption := Value;
      if FUserID <> '' then
      begin
        Application.MainForm.Caption := Application.MainForm.Caption + '  管理員：' + FUserID;
        Application.MainForm.Caption := Application.MainForm.Caption + '  --系統管理員';
      end;
    end;
  end;
end;

end.