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unit RecentListProcs;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Laz2_XMLCfg,
// LazUtils
LazFileUtils,
// IdeConfig
IdeXmlConfigProcs;
// Recent item lists
type
TRecentListType = (
rltCaseSensitive,
rltCaseInsensitive,
rltFile
);
const
RecentListTypeNames: array[TRecentListType] of string = (
'CaseSensitive',
'CaseInsensitive',
'File'
);
function IndexInRecentList(List: TStrings; ListType: TRecentListType;
const Path: string): integer;
function StrToRecentListType(s: string): TRecentListType;
function CompareRecentListItem(s1, s2: string; ListType: TRecentListType): boolean;
procedure LoadRecentList(XMLConfig: TXMLConfig; List: TStrings; const Path: string;
ListType: TRecentListType);
procedure SaveRecentList(XMLConfig: TXMLConfig; List: TStrings;
const Path: string); overload;
procedure SaveRecentList(XMLConfig: TXMLConfig; List: TStrings;
const Path: string; aMax: Integer); overload;
function AddToRecentList(const s: string; List: TStrings; aMax: integer;
ListType: TRecentListType): boolean;
procedure RemoveFromRecentList(const s: string; List: TStrings;
ListType: TRecentListType);
procedure CleanUpRecentList(List: TStrings; ListType: TRecentListType);
implementation
// Recent item lists :
function IndexInRecentList(List: TStrings; ListType: TRecentListType;
const Path: string): integer;
begin
Result:=List.Count-1;
while (Result>=0) and (not CompareRecentListItem(List[Result],Path,ListType)) do
dec(Result);
end;
function StrToRecentListType(s: string): TRecentListType;
begin
for Result:=Low(TRecentListType) to high(TRecentListType) do
if SysUtils.CompareText(s,RecentListTypeNames[Result])=0 then exit;
Result:=rltCaseSensitive;
end;
function CompareRecentListItem(s1, s2: string; ListType: TRecentListType): boolean;
begin
case ListType of
rltCaseInsensitive: Result:=AnsiCompareText(s1,s2)=0;
rltFile: Result:=CompareFilenames(ChompPathDelim(s1),ChompPathDelim(s2))=0;
else Result:=s1=s2;
end;
end;
procedure LoadRecentList(XMLConfig: TXMLConfig; List: TStrings;
const Path: string; ListType: TRecentListType);
begin
LoadStringList(XMLConfig,List,Path);
CleanUpRecentList(List,ListType);
end;
procedure SaveRecentList(XMLConfig: TXMLConfig; List: TStrings; const Path: string);
begin
SaveStringList(XMLConfig,List,Path);
end;
procedure SaveRecentList(XMLConfig: TXMLConfig; List: TStrings;
const Path: string; aMax: Integer);
var
i: Integer;
s: String;
begin
if aMax>0 then
while List.Count>aMax do // Truncate list to aMax items.
List.Delete(List.Count-1);
SaveStringList(XMLConfig,List,Path);
i:=List.Count+1;
while True do
begin
s:=Path+'Item'+IntToStr(i);
if not XMLConfig.HasPath(s+'/Value',True) then Break;
XMLConfig.DeletePath(s); // Remove excess items from XML.
Inc(i);
end;
end;
function AddToRecentList(const s: string; List: TStrings; aMax: integer;
ListType: TRecentListType): boolean;
begin
if (List.Count>0) and CompareRecentListItem(List[0],s,ListType) then
exit(false);
Result:=true;
RemoveFromRecentList(s,List,ListType);
List.Insert(0,s);
if aMax>0 then
while List.Count>aMax do
List.Delete(List.Count-1);
end;
procedure RemoveFromRecentList(const s: string; List: TStrings;
ListType: TRecentListType);
var
i: integer;
begin
for i:=List.Count-1 downto 0 do
if CompareRecentListItem(List[i],s,ListType) then
List.Delete(i);
end;
procedure CleanUpRecentList(List: TStrings; ListType: TRecentListType);
var
i: Integer;
begin
for i:=List.Count-1 downto 1 do
if (List[i]='') or CompareRecentListItem(List[i],List[i-1],ListType) then
List.Delete(i);
end;
end.
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