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unit FormLocalization;
interface
uses Classes, SysUtils, Controls, StdCtrls, Forms, INIFiles, TypInfo;
type
TMyFormLocalization = class protected const cMaxLinesMissing = 16;
var FCanUpdate : boolean;
FFormArray : Array of TCustomForm; FCurLangFile : TFileName; FLocalStrings : TStringList; FReplaceVarsINI : TStringList; FReplaceVarsUsr : TStringList; procedure Initialize;
procedure SetCurLangFile(aLangIniFile: TFileName);
function StringReplacer(s: string): string;
public constructor Create(aFormArray: Array of TCustomForm; aLangIniFile: TFileName; UpdateLocal: boolean = true); destructor Destroy; override;
property CurLangFile: TFileName read FCurLangFile write SetCurLangFile;
procedure SetNewForms(aFormArray: Array of TCustomForm); procedure SetUserReplaceVars(aNameValuePairStringList: TStrings); procedure AddUserReplaceVars(aVarName, aVarValue: string);
function GetLocalStr(aName: string): string; overload; function GetLocalStr(aName: string; ReplaceStr: array of string): string; overload;
procedure RefreshLocalization; end;
implementation
constructor TMyFormLocalization.Create(aFormArray: Array of TCustomForm; aLangIniFile: TFileName; UpdateLocal: boolean = true); var i: integer; begin Initialize;
SetLength(FFormArray, Length(aFormArray)-1); for i:=0 to Length(FFormArray)-1 do FFormArray[i]:= aFormArray[i];
FCanUpdate:= UpdateLocal; SetCurLangFile(aLangIniFile); FCanUpdate:= true; end;
procedure TMyFormLocalization.Initialize; begin FLocalStrings := TStringList.Create; FReplaceVarsINI := TStringList.Create; FReplaceVarsUsr := TStringList.Create;
FLocalStrings.NameValueSeparator := '='; FReplaceVarsINI.NameValueSeparator := '='; FReplaceVarsUsr.NameValueSeparator := '='; end;
destructor TMyFormLocalization.Destroy; begin FLocalStrings.Free; FReplaceVarsINI.Free; FReplaceVarsUsr.Free; end;
procedure TMyFormLocalization.SetNewForms(aFormArray: Array of TCustomForm); var i: integer; begin SetLength(FFormArray, Length(aFormArray)-1); for i:=0 to Length(FFormArray)-1 do FFormArray[i]:= aFormArray[i]; end; procedure TMyFormLocalization.SetCurLangFile(aLangIniFile: TFileName); begin if FileExists(aLangIniFile) and (aLangIniFile <> FCurLangFile) then begin FCurLangFile:= aLangIniFile; if FCanUpdate then RefreshLocalization; end; end; procedure TMyFormLocalization.SetUserReplaceVars(aNameValuePairStringList: TStrings); begin FReplaceVarsUsr.Assign(aNameValuePairStringList); end; procedure TMyFormLocalization.AddUserReplaceVars(aVarName, aVarValue: string); begin if FReplaceVarsUsr.Values[aVarName] <> '' then FReplaceVarsUsr.Values[aVarName]:= aVarValue else FReplaceVarsUsr.Add(aVarName + FReplaceVarsUsr.NameValueSeparator + aVarValue);
end;
function TMyFormLocalization.StringReplacer(s: string): string;
function ReplaceNameValuePairs(aInput: string; aTS: TStrings; aVarIdent: Char): string; var i: integer; begin result:= aInput; for i:=0 to aTS.Count-1 do result:= StringReplace(result, aVarIdent + aTS.Names[i] + aVarIdent, aTS.ValueFromIndex[i], [rfIgnoreCase, rfReplaceAll]); end;
begin result:= s;
result:= ReplaceNameValuePairs(result, FReplaceVarsINI, '!'); result:= ReplaceNameValuePairs(result, FReplaceVarsUsr, '%');
result:= StringReplace(result, '|', #13, [rfIgnoreCase, rfReplaceAll]); end;
function TMyFormLocalization.GetLocalStr(aName: string): string; begin result:= FLocalStrings.Values[aName];
if FLocalStrings.IndexOf(aName + FLocalStrings.NameValueSeparator + result) <> -1 then result:= StringReplacer(result) else result:= aName; end; function TMyFormLocalization.GetLocalStr(aName: string; ReplaceStr: array of string): string; var i: integer; begin result:= GetLocalStr(aName); for i:=0 to Length(ReplaceStr)-1 do result:= StringReplace(result, '%'+ IntToStr(i), ReplaceStr[i], [rfIgnoreCase, rfReplaceAll]);
result:= StringReplacer(result); end;
procedure TMyFormLocalization.RefreshLocalization;
procedure SetStringProperty(aCmp: TComponent; propName, propValue: string); var p: PPropInfo; begin p:= GetPropInfo(aCmp.ClassInfo, propName); if (p <> nil) and (p^.SetProc <> nil) then SetStrProp(aCmp, propName, propValue) end;
procedure SplitNameProp(const s: string; var aName, aProp: string); var i: integer; b: boolean; begin b:= false; aName:= ''; aProp:= ''; for i:=1 to Length(s) do if not b then begin if s[i] = '.' then b:= true else aName:= aName + s[i]; end else aProp:= aProp + s[i];
end; var INI: TMemINIFile; i, j, ii, i3: integer; cmp_name, prop, old_cmp_name: string; cmp: TComponent; TS: TStringList; replaced_str: string; begin if FileExists(FCurLangFile) then begin INI:= TMemINIFile.Create(FCurLangFile); TS:= TStringList.Create;
FReplaceVarsINI.Clear; INI.ReadSectionValues('Vars', FReplaceVarsINI); FLocalStrings.Clear; INI.ReadSectionValues('LocalStrings', FLocalStrings);
for i:=0 to Length(FFormArray)-1 do if (FFormArray[i] <> nil) and INI.SectionExists(FFormArray[i].Name) then begin TS.Clear; INI.ReadSection(FFormArray[i].Name, TS); TS.Sort; for j:=0 to TS.Count-1 do begin SplitNameProp(TS.Strings[j], cmp_name, prop);
if LowerCase(cmp_name) = Lowercase(FFormArray[i].Name) then cmp:= FFormArray[i] else if (cmp_name <> old_cmp_name) then cmp:= FFormArray[i].FindComponent(cmp_name);
if (cmp <> nil) then begin replaced_str:= StringReplacer( INI.ReadString(FFormArray[i].Name, TS.Strings[j], '') );
if (LowerCase(prop) = 'caption') or (LowerCase(prop) = 'text') then SetStringProperty(cmp, prop, replaced_str)
else if LowerCase(prop) = 'hint' then begin SetStringProperty(cmp, prop, replaced_str); (cmp as TControl).ShowHint:= (prop <> ''); end else if LowerCase(prop) = 'lines[0]' then begin ii:= 0; i3:= 0; (cmp as TCustomMemo).Clear; while i3 < cMaxLinesMissing do begin if INI.ValueExists(FFormArray[i].Name, cmp_name + '.lines[' + IntToStr(ii) + ']') then begin (cmp as TCustomMemo).Lines.Add( StringReplacer( INI.ReadString(FFormArray[i].Name, cmp_name + '.lines[' + IntToStr(ii) + ']','') ) ); i3:= 0; end else begin (cmp as TCustomMemo).Lines.Add(''); Inc(i3); end;
Inc(ii);
end; end;
end; old_cmp_name:= cmp_name;
end; end; INI.Free; TS.Free; end;end;
END. |