Я использую код следующим образом, но вам, возможно, придется обойти его. Единственное, чего явно не хватает - это IAbbreviatedFileName, который, по сути, оборачивает функцию Windows API PathCompactPath. Вы захотите каким-то образом сократить очень длинные имена файлов, и это мой предпочтительный выбор. Извините за такой огромный дамп кода, но кто-то может найти что-то полезное внутри!
type
TFileAwareMenuItem = class(TMenuItem)
private
FFileName: string;
public
property FileName: string read FFileName write FFilename;
end;
TMRU = class
private
FParent: array of TMenuItem;
FMenuItemStart: array of TMenuItem;
FMenuItemFinish: array of TMenuItem;
FMenuCount: Integer;
FRegistryKey: string;
FOwner: TCustomForm;
FMRUFileNames: TStringList;
FAction: TAction;
function GetCount: Integer;
function GetItem(Index: Integer): string;
procedure SetAction(Value: TAction);
procedure Read;
procedure Write;
procedure UpdateMenu;
public
constructor Create(const RegistrySubKey: string; const Owner: TCustomForm);
destructor Destroy; override;
procedure RegisterBoundingMenuItems(Start, Finish: TMenuItem);
procedure Add(const FileName: string);
procedure Delete(ItemNum: Integer);
property Count: Integer read GetCount;
property Action: TAction read FAction write SetAction;
property Items[Index: Integer]: string read GetItem; default;
end;
const
MRUSize=9;
AppRegistryKey='??put your apps registry key here??';
var
Registry: TRegistry;
constructor TMRU.Create(const RegistrySubKey: string; const Owner: TCustomForm);
begin
inherited Create;
FRegistryKey := Format('%s\%s', [AppRegistryKey, RegistrySubKey]);
FOwner := Owner;
FMRUFileNames := TStringList.Create;
Read;
end;
destructor TMRU.Destroy;
begin
Write;
FreeAndNil(FMRUFileNames);
inherited;
end;
procedure TMRU.RegisterBoundingMenuItems(Start, Finish: TMenuItem);
begin
inc(FMenuCount);
SetLength(FParent, FMenuCount);
SetLength(FMenuItemStart, FMenuCount);
SetLength(FMenuItemFinish, FMenuCount);
FMenuItemStart[FMenuCount-1] := Start;
FMenuItemFinish[FMenuCount-1] := Finish;
Assert(Start.Parent=Finish.Parent);
FParent[FMenuCount-1] := Start.Parent;
UpdateMenu;
end;
procedure TMRU.UpdateMenu;
var
Intf: IAbbreviatedFileName;
i, j: Integer;
FileName: string;
NewMenuItem: TFileAwareMenuItem;
begin
Intf := FOwner as IAbbreviatedFileName;
for i := 0 to FMenuCount-1 do begin
j := FMenuItemStart[i].MenuIndex+1;
while j<FMenuItemFinish[i].MenuIndex do begin
FParent[i][j].Free;
end;
for j := 0 to Count-1 do begin
NewMenuItem := TFileAwareMenuItem.Create(FMenuItemStart[i].Owner);
NewMenuItem.Action := Action;
NewMenuItem.FileName := FMRUFileNames[j];
FileName := ReplaceString(Intf.AbbreviatedFileName(NewMenuItem.FileName, False), '&', '&&');
NewMenuItem.Caption := Format('&%d. %s', [j+1, FileName]);
FParent[i].Insert(FMenuItemFinish[i].MenuIndex, NewMenuItem);
end;
FMenuItemStart[i].Visible := (Count>0) and (FMenuItemStart[i].MenuIndex>0);
FMenuItemFinish[i].Visible := (FMenuItemFinish[i].MenuIndex<FParent[i].Count-1);
end;
end;
procedure TMRU.Read;
var
i: Integer;
s: string;
begin
if Registry.OpenKey(HKEY_CURRENT_USER, FRegistryKey) then begin
FMRUFileNames.Clear;
for i := 0 to MRUSize-1 do begin
s := Registry.ReadString(IntToStr(i+1), '');
if s<>'' then begin
FMRUFileNames.Add(s);
end;
end;
UpdateMenu;
Registry.CloseKey;
end;
end;
procedure TMRU.Write;
var
i: Integer;
ValueName: string;
begin
if Registry.OpenKey(HKEY_CURRENT_USER, FRegistryKey, KEY_ALL_ACCESS, True) then begin
Registry.WriteInteger('Size', MRUSize);
for i := 0 to MRUSize-1 do begin
ValueName := IntToStr(i+1);
if i<Count then begin
Registry.WriteString(ValueName, FMRUFileNames.Strings[i]);
end else begin
if Registry.ValueExists(ValueName) then begin
Registry.DeleteValue(ValueName);
end;
end;
end;
Registry.CloseKey;
end;
end;
function TMRU.GetCount: Integer;
begin
Result := Min(FMRUFileNames.Count, MRUSize);
end;
function TMRU.GetItem(Index: Integer): string;
begin
Result := FMRUFileNames[Index];
end;
procedure TMRU.SetAction(Value: TAction);
begin
if Value<>FAction then begin
FAction := Value;
UpdateMenu;
end;
end;
procedure TMRU.Add(const FileName: string);
var
i, Index: Integer;
begin
Index := -1;
for i := 0 to FMRUFileNames.Count-1 do begin
if FileNamesEqual(FileName, FMRUFileNames[i]) then begin
Index := i;
break;
end;
end;
if Index<>-1 then begin
FMRUFileNames.Move(Index, 0);
end else begin
FMRUFileNames.Insert(0, FileName);
if FMRUFileNames.Count>MRUSize then begin
FMRUFileNames.Delete(FMRUFileNames.Count-1);
end;
end;
UpdateMenu;
Write;
end;
procedure TMRU.Delete(ItemNum: Integer);
begin
FMRUFileNames.Delete(ItemNum);
UpdateMenu;
end;
initialization
Registry := TRegistry.Create;
if not Registry.KeyExists(AppRegistryKey) then begin
Registry.CreateKey(AppRegistryKey);
end;
finalization
FreeAndNil(Registry);