mainf.pas

some Indy demo 3

procedure TMainForm.IdFTP1Disconnected(Sender: TObject);
begin
  StatusBar1.Panels[1].Text := 'Disconnected.';
end;

procedure TMainForm.AbortButtonClick(Sender: TObject);
begin
  AbortTransfer := true;
end;

procedure TMainForm.BackButtonClick(Sender: TObject);
begin
  if not IdFTP1.Connected then exit;
  try
    ChageDir('..');
  finally end;
end;

procedure TMainForm.IdFTP1Status(axSender: TObject; const axStatus: TIdStatus;
  const asStatusText: String);
begin
  DebugListBox.ItemIndex := DebugListBox.Items.Add(asStatusText);
  StatusBar1.Panels[1].Text := asStatusText;
end;

procedure TMainForm.TraceCheckBoxClick(Sender: TObject);
begin
  if TraceCheckBox.Checked then
    IdFtp1.Intercept := IdLogEvent1
  else
    IdFtp1.Intercept := nil;

  DebugListBox.Visible := TraceCheckBox.Checked;
  if DebugListBox.Visible then Splitter1.Top := DebugListBox.Top + 5;
end;

procedure TMainForm.FormCreate(Sender: TObject);
begin
  SetFunctionButtons(false);

  IdFtp1.Intercept := IdLogEvent1;

  FtpServerEdit.Text := GetHostInfo('FTPHOST');

  ProgressBar1.Parent := StatusBar1;
  ProgressBar1.Top := 2;
  ProgressBar1.Left := 1;
  ProgressBar1.Align := alClient;
end;

procedure TMainForm.DirectoryListBoxClick(Sender: TObject);
begin
  if not IdFTP1.Connected then exit;
  if DirectoryListBox.ItemIndex > -1 then begin
  if IdFTP1.DirectoryListing.Items[DirectoryListBox.ItemIndex].ItemType = ditDirectory then DownloadButton.Caption := 'Change dir'
    else DownloadButton.Caption := 'Download';
  end;
end;

procedure TMainForm.IdFTP1Work(Sender: TObject; AWorkMode: TWorkMode;
  const AWorkCount: Integer);
Var
  S: String;
  TotalTime: TDateTime;
//  RemainingTime: TDateTime;
  H, M, Sec, MS: Word;
  DLTime: Double;
begin
  TotalTime :=  Now - STime;
  DecodeTime(TotalTime, H, M, Sec, MS);
  Sec := Sec + M * 60 + H * 3600;
  DLTime := Sec + MS / 1000;
  if DLTime > 0 then
    AverageSpeed := {(AverageSpeed + }(AWorkCount / 1024) / DLTime{) / 2};

  if AverageSpeed > 0 then begin
    Sec := Trunc(((ProgressBar1.Max - AWorkCount) / 1024) / AverageSpeed);

    S := Format('%2d:%2d:%2d', [Sec div 3600, (Sec div 60) mod 60, Sec mod 60]);

    S := 'Time remaining ' + S;
  end
  else S := '';

  S := FormatFloat('0.00 KB/s', AverageSpeed) + '; ' + S;
  case AWorkMode of
    wmRead: StatusBar1.Panels[1].Text := 'Download speed ' + S;
    wmWrite: StatusBar1.Panels[1].Text := 'Uploade speed ' + S;
  end;

  if AbortTransfer then IdFTP1.Abort;

  ProgressBar1.Position := AWorkCount;
  AbortTransfer := false;
end;

procedure TMainForm.IdFTP1WorkBegin(Sender: TObject; AWorkMode: TWorkMode;
  const AWorkCountMax: Integer);
begin
  TransferrignData := true;
  AbortButton.Visible := true;
  AbortTransfer := false;
  STime := Now;
  if AWorkCountMax > 0 then ProgressBar1.Max := AWorkCountMax
  else ProgressBar1.Max := BytesToTransfer;
  AverageSpeed := 0;
end;

procedure TMainForm.IdFTP1WorkEnd(Sender: TObject; AWorkMode: TWorkMode);
begin
  AbortButton.Visible := false;
  StatusBar1.Panels[1].Text := 'Transfer complete.';
  BytesToTransfer := 0;
  TransferrignData := false;
  ProgressBar1.Position := 0;
  AverageSpeed := 0;
end;

procedure TMainForm.UsePassiveClick(Sender: TObject);
begin
  IdFTP1.Passive := UsePassive.Checked;
end;

procedure TMainForm.ChDirButtonClick(Sender: TObject);
begin
  SetFunctionButtons(false);
  ChageDir(CurrentDirEdit.Text);
  SetFunctionButtons(true);
end;

procedure TMainForm.CreateDirButtonClick(Sender: TObject);
Var
  S: String;
begin
  S := InputBox('Make new directory', 'Name', '');
  if S <> '' then
    try
      SetFunctionButtons(false);
      IdFTP1.MakeDir(S);
      ChageDir(CurrentDirEdit.Text);
    finally
      SetFunctionButtons(true);
    end;
end;

procedure TMainForm.SaveFTPHostInfo(Datatext, header: String);
var
  ServerIni: TIniFile;
begin
  ServerIni := TIniFile.Create(ExtractFilePath(ParamStr(0)) + 'FtpHost.ini');
  ServerIni.WriteString('Server', header, Datatext);
  ServerIni.UpdateFile;
  ServerIni.Free;
end;

function TMainForm.GetHostInfo(header: String): String;
var
  ServerName: String;
  ServerIni: TIniFile;
begin
  ServerIni := TIniFile.Create(ExtractFilePath(ParamStr(0)) + 'FtpHost.ini');
  ServerName := ServerIni.ReadString('Server', header, header);

  ServerIni.Free;
  result := ServerName;
end;

procedure TMainForm.PutToDebugLog(Operation, S1: String);
Var
  S: String;
begin
  while Length(S1) > 0 do begin
    if Pos(#13, S1) > 0 then begin
      S := Copy(S1, 1, Pos(#13, S1) - 1);
      Delete(S1, 1, Pos(#13, S1));
      if S1[1] = #10 then Delete(S1, 1, 1);
    end
    else
      S := S1;

    DebugListBox.ItemIndex := DebugListBox.Items.Add(Operation + S);
  end;
end;

procedure TMainForm.IdLogEvent1Received(ASender: TComponent; const AText,
  AData: String);
begin
  PutToDebugLog('<<- ', AData);
end;

procedure TMainForm.IdLogEvent1Sent(ASender: TComponent; const AText,
  AData: String);
begin
  PutToDebugLog('->> ', AData);
end;

{$IFDEF Linux}
procedure TMainForm.DebugListBoxDrawItem(Sender: TObject; Index: Integer;
  Rect: TRect; State: TOwnerDrawState; var Handled: Boolean);
{$ELSE}
procedure TMainForm.DebugListBoxDrawItem(Control: TWinControl;
  Index: Integer; Rect: TRect; State: TOwnerDrawState);
{$ENDIF}
begin
  if Pos('>>', DebugListBox.Items[index]) > 1 then
    DebugListBox.Canvas.Font.Color := clRed
  else
    DebugListBox.Canvas.Font.Color := clBlue;

  if odSelected in State then begin
    DebugListBox.Canvas.Brush.Color := $00895F0A;
    DebugListBox.Canvas.Font.Color := clWhite;
  end
  else
    DebugListBox.Canvas.Brush.Color := clWindow;

  DebugListBox.Canvas.FillRect(Rect);

  DebugListBox.Canvas.TextOut(Rect.Left, Rect.Top, DebugListBox.Items[index]);
end;

{$IFDEF Linux}
procedure TMainForm.DirectoryListBoxDrawItem(Sender: TObject; Index: Integer;
  Rect: TRect; State: TOwnerDrawState; var Handled: Boolean);
{$ELSE}
procedure TMainForm.DirectoryListBoxDrawItem(Control: TWinControl;
  Index: Integer; Rect: TRect; State: TOwnerDrawState);
{$ENDIF}
Var
  R: TRect;
begin
  if odSelected in State then begin
    DirectoryListBox.Canvas.Brush.Color := $00895F0A;
    DirectoryListBox.Canvas.Font.Color := clWhite;
  end
  else
    DirectoryListBox.Canvas.Brush.Color := clWindow;

  if Assigned(IdFTP1.DirectoryListing) and (IdFTP1.DirectoryListing.Count > Index) then begin
    DirectoryListBox.Canvas.FillRect(Rect);
    with IdFTP1.DirectoryListing.Items[Index] do begin
      DirectoryListBox.Canvas.TextOut(Rect.Left, Rect.Top, FileName);
      R := Rect;

      R.Left := Rect.Left + HeaderControl1.Sections.Items[0].Width;
      R.Right := R.Left + HeaderControl1.Sections.Items[1].Width;
      DirectoryListBox.Canvas.FillRect(R);
      DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, IntToStr(Size));

      R.Left := R.Right;
      R.Right := R.Left + HeaderControl1.Sections.Items[2].Width;
      DirectoryListBox.Canvas.FillRect(R);

      if ItemType = ditDirectory then begin
        DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, 'Directory');
      end
      else
        DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, 'File');

      R.Left := R.Right;
      R.Right := R.Left + HeaderControl1.Sections.Items[3].Width;
      DirectoryListBox.Canvas.FillRect(R);
      DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, FormatDateTime('mm/dd/yyyy hh:mm', ModifiedDate));

      R.Left := R.Right;
      R.Right := R.Left + HeaderControl1.Sections.Items[4].Width;
      DirectoryListBox.Canvas.FillRect(R);
      DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, GroupName);

      R.Left := R.Right;
      R.Right := R.Left + HeaderControl1.Sections.Items[5].Width;
      DirectoryListBox.Canvas.FillRect(R);
      DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, OwnerName);

      R.Left := R.Right;
      R.Right := R.Left + HeaderControl1.Sections.Items[6].Width;
      DirectoryListBox.Canvas.FillRect(R);
      DirectoryListBox.Canvas.TextOut(R.Left, Rect.Top, OwnerPermissions + GroupPermissions + UserPermissions);
    end;
  end;
end;

{$IFDEF Linux}
procedure TMainForm.HeaderControl1SectionResize(HeaderControl: TCustomHeaderControl;
     Section: TCustomHeaderSection);
{$ELSE}
procedure TMainForm.HeaderControl1SectionResize(
  HeaderControl: THeaderControl; Section: THeaderSection);
{$ENDIF}
begin
  DirectoryListBox.Repaint;
end;


end.