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unit UnitList;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, fpg_base;
type
TUnit = class(TObject)
private
FFilename: TfpgString;
FOpened: Boolean;
function GetUnitName: TfpgString;
public
constructor Create;
property FileName: TfpgString read FFilename write FFilename;
property UnitName: TfpgString read GetUnitName;
property Opened: Boolean read FOpened write FOpened;
end;
TUnitList = class(TObject)
private
FList: TList;
function GetItems(AIndex: integer): TUnit;
procedure SetItems(AIndex: integer; const AValue: TUnit);
public
constructor Create;
destructor Destroy; override;
function Count: integer;
function FindByName(const AUnitName: TfpgString): TUnit;
function FileExists(const AFilename: TfpgString): Boolean;
procedure Add(NewUnit: TUnit);
procedure Clear;
procedure Delete(AIndex: integer);
property Items[AIndex: integer]: TUnit read GetItems write SetItems; default;
end;
implementation
uses
fpg_utils;
{ TUnitList }
function TUnitList.GetItems(AIndex: integer): TUnit;
begin
Result := TUnit(FList[AIndex]);
end;
procedure TUnitList.SetItems(AIndex: integer; const AValue: TUnit);
begin
FList[AIndex] := AValue;
end;
constructor TUnitList.Create;
begin
FList := TList.Create;
inherited Create;
end;
destructor TUnitList.Destroy;
begin
Clear;
FList.Free;
inherited Destroy;
end;
function TUnitList.Count: integer;
begin
Result := FList.Count;
end;
function TUnitList.FindByName(const AUnitName: TfpgString): TUnit;
var
l: Integer;
r: Integer;
m: Integer;
cmp: Integer;
begin
l := 0;
r := Count-1;
m := 0;
while l <= r do
begin
m := (l+r) shr 1;
Result := Items[m];
cmp := AnsiCompareText(AUnitName, Result.UnitName);
if cmp < 0 then
r := m-1
else if cmp > 0 then
l := m+1
else
exit;
end;
Result := nil;
end;
function TUnitList.FileExists(const AFilename: TfpgString): Boolean;
var
i: integer;
begin
Result := False;
for i := 0 to Count-1 do
begin
Result := Items[i].FileName = AFilename;
if Result then
Exit;
end;
end;
procedure TUnitList.Add(NewUnit: TUnit);
var
l: Integer;
r: Integer;
m: Integer;
cmp: Integer;
begin
l := 0;
r := Count-1;
m := 0;
while l <= r do
begin
m := (l+r) shr 1;
cmp := AnsiCompareText(NewUnit.UnitName, Items[m].UnitName);
if cmp < 0 then
r := m-1
else if cmp > 0 then
l := m + 1
else
break;
end;
if (m < Count) and (AnsiCompareText(NewUnit.UnitName, Items[m].UnitName) > 0) then
inc(m);
FList.Insert(m, NewUnit);
end;
procedure TUnitList.Clear;
var
i: integer;
begin
for i := Count-1 downto 0 do
TUnit(FList[i]).Free;
FList.Clear;
end;
procedure TUnitList.Delete(AIndex: integer);
begin
TUnit(FList[AIndex]).Free;
FList.Delete(AIndex);
end;
{ TUnit }
function TUnit.GetUnitName: TfpgString;
begin
Result := fpgExtractFileName(Filename);
end;
constructor TUnit.Create;
begin
inherited Create;
FOpened := False;
end;
end.
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