strledit.pas

RX Library contains a large number of components, objects and routines for Borland Delphi with full

{*******************************************************}
{                                                       }
{       Delphi Visual Component Library                 }
{                                                       }
{       Copyright (c) 1995 Borland International        }
{       Portions copyright (c) 1997 Master-Bank         }
{                                                       }
{*******************************************************}

unit StrLEdit;

{$I RX.INC}

interface

uses {$IFDEF WIN32} Windows, {$ELSE} WinTypes, WinProcs, {$ENDIF} Classes, 
  Graphics, Forms, Controls, Buttons, Dialogs, RTLConsts, DesignIntf, DesignEditors, VCLEditors, StdCtrls, ExtCtrls;

type
  TStrEditDlg = class(TForm)
    Memo: TMemo;
    LineCount: TLabel;
    OpenDialog: TOpenDialog;
    SaveDialog: TSaveDialog;
    OKBtn: TButton;
    CancelBtn: TButton;
    HelpBtn: TButton;
    LoadBtn: TButton;
    SaveBtn: TButton;
    procedure FileOpen(Sender: TObject);
    procedure FileSave(Sender: TObject);
    procedure UpdateStatus(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure MemoKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure HelpBtnClick(Sender: TObject);
  private
    SingleLine: string[15];
    MultipleLines: string[15];
  end;

implementation

{$R *.DFM}

uses SysUtils, LibHelp;

{ TStrListEditDlg }

procedure TStrEditDlg.FileOpen(Sender: TObject);
begin
  with OpenDialog do
    if Execute then Memo.Lines.LoadFromFile(FileName);
end;

procedure TStrEditDlg.FileSave(Sender: TObject);
begin
  SaveDialog.FileName := OpenDialog.FileName;
  with SaveDialog do
    if Execute then Memo.Lines.SaveToFile(FileName);
end;

procedure TStrEditDlg.UpdateStatus(Sender: TObject);
var
  Count: Integer;
begin
  Count := Memo.Lines.Count;
  if Count = 1 then
    LineCount.Caption := Format('%d %s', [Count, SingleLine])
  else
    LineCount.Caption := Format('%d %s', [Count, MultipleLines]);
end;

procedure TStrEditDlg.FormCreate(Sender: TObject);
begin
  HelpContext := hcDStringListEditor;
  OpenDialog.HelpContext := hcDStringListLoad;
  SaveDialog.HelpContext := hcDStringListSave;
  SingleLine := 'Line';
  MultipleLines := 'Lines';
end;

procedure TStrEditDlg.MemoKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if Key = VK_ESCAPE then CancelBtn.Click;
end;

procedure TStrEditDlg.HelpBtnClick(Sender: TObject);
begin
  Application.HelpContext(HelpContext);
end;

end.