Componentes.Terceros.jcl/official/1.96/source/windows/JclLocales.pas

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39 KiB
ObjectPascal

{**************************************************************************************************}
{ }
{ Project JEDI Code Library (JCL) }
{ }
{ The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); }
{ you may not use this file except in compliance with the License. You may obtain a copy of the }
{ License at http://www.mozilla.org/MPL/ }
{ }
{ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF }
{ ANY KIND, either express or implied. See the License for the specific language governing rights }
{ and limitations under the License. }
{ }
{ The Original Code is JclLocales.pas. }
{ }
{ The Initial Developer of the Original Code is Petr Vones. }
{ Portions created by Petr Vones are Copyright (C) Petr Vones. All Rights Reserved. }
{ }
{ Contributors: }
{ Marcel van Brakel }
{ Robert Marquardt (marquardt) }
{ Robert Rossmair (rrossmair) }
{ Matthias Thoma (mthoma) }
{ Petr Vones (pvones) }
{ }
{**************************************************************************************************}
{ }
{ This unit contains a set of classes which allow you to easily retrieve locale specific }
{ information such the list of keyboard layouts, names used for dates and characters used for }
{ formatting numbers and dates. }
{ }
{ Unit owner: Petr Vones }
{ }
{**************************************************************************************************}
// Last modified: $Date: 2005/12/26 18:03:58 $
// For history see end of file
unit JclLocales;
{$I jcl.inc}
{$I windowsonly.inc}
interface
uses
{$IFDEF FPC}
JwaWinNLS,
{$ENDIF FPC}
Windows, Classes, SysUtils, Contnrs,
JclBase, JclWin32;
type
// System locales
TJclLocalesDays = 1..7;
TJclLocalesMonths = 1..13;
TJclLocaleDateFormats = (ldShort, ldLong, ldYearMonth);
TJclLocaleInfo = class(TObject)
private
FCalendars: TStringList;
FDateFormats: array [TJclLocaleDateFormats] of TStringList;
FLocaleID: LCID;
FTimeFormats: TStringList;
FUseSystemACP: Boolean;
FValidCalendars: Boolean;
FValidDateFormatLists: set of TJclLocaleDateFormats;
FValidTimeFormatLists: Boolean;
function GetCalendars: TStrings;
function GetCalendarIntegerInfo(Calendar: CALID; InfoType: Integer): Integer;
function GetCalendarStringInfo(Calendar: CALID; InfoType: Integer): string;
function GetIntegerInfo(InfoType: Integer): Integer;
function GetStringInfo(InfoType: Integer): string;
function GetLangID: LANGID;
function GetSortID: Word;
function GetLangIDPrimary: Word;
function GetLangIDSub: Word;
function GetLongMonthNames(Month: TJclLocalesMonths): string;
function GetAbbreviatedMonthNames(Month: TJclLocalesMonths): string;
function GetLongDayNames(Day: TJclLocalesDays): string;
function GetAbbreviatedDayNames(Day: TJclLocalesDays): string;
function GetCharInfo(InfoType: Integer): Char;
function GetTimeFormats: TStrings;
function GetDateFormats(Format: TJclLocaleDateFormats): TStrings;
function GetFontCharset: Byte;
function GetCalTwoDigitYearMax(Calendar: CALID): Integer;
procedure SetUseSystemACP(const Value: Boolean);
procedure SetCharInfo(InfoType: Integer; const Value: Char);
procedure SetIntegerInfo(InfoType: Integer; const Value: Integer);
procedure SetStringInfo(InfoType: Integer; const Value: string);
public
constructor Create(ALocaleID: LCID = LOCALE_SYSTEM_DEFAULT);
destructor Destroy; override;
property CharInfo[InfoType: Integer]: Char read GetCharInfo write SetCharInfo;
property IntegerInfo[InfoType: Integer]: Integer read GetIntegerInfo write SetIntegerInfo;
property StringInfo[InfoType: Integer]: string read GetStringInfo write SetStringInfo; default;
property UseSystemACP: Boolean read FUseSystemACP write SetUseSystemACP;
property FontCharset: Byte read GetFontCharset;
property LangID: LANGID read GetLangID;
property LocaleID: LCID read FLocaleID;
property LangIDPrimary: Word read GetLangIDPrimary;
property LangIDSub: Word read GetLangIDSub;
property SortID: Word read GetSortID;
property DateFormats[Format: TJclLocaleDateFormats]: TStrings read GetDateFormats;
property TimeFormats: TStrings read GetTimeFormats;
// Languages
property LanguageIndentifier: string index LOCALE_ILANGUAGE read GetStringInfo;
property LocalizedLangName: string index LOCALE_SLANGUAGE read GetStringInfo;
property EnglishLangName: string index LOCALE_SENGLANGUAGE read GetStringInfo;
property AbbreviatedLangName: string index LOCALE_SABBREVLANGNAME read GetStringInfo;
property NativeLangName: string index LOCALE_SNATIVELANGNAME read GetStringInfo;
property ISOAbbreviatedLangName: string index LOCALE_SISO639LANGNAME read GetStringInfo;
// Countries
property CountryCode: Integer index LOCALE_ICOUNTRY read GetIntegerInfo;
property LocalizedCountryName: string index LOCALE_SCOUNTRY read GetStringInfo;
property EnglishCountryName: string index LOCALE_SENGCOUNTRY read GetStringInfo;
property AbbreviatedCountryName: string index LOCALE_SABBREVCTRYNAME read GetStringInfo;
property NativeCountryName: string index LOCALE_SNATIVECTRYNAME read GetStringInfo;
property ISOAbbreviatedCountryName: string index LOCALE_SISO3166CTRYNAME read GetStringInfo;
// Codepages
property DefaultLanguageId: Integer index LOCALE_IDEFAULTLANGUAGE read GetIntegerInfo;
property DefaultCountryCode: Integer index LOCALE_IDEFAULTCOUNTRY read GetIntegerInfo;
property DefaultCodePageEBCDIC: Integer index LOCALE_IDEFAULTEBCDICCODEPAGE read GetIntegerInfo;
property CodePageOEM: Integer index LOCALE_IDEFAULTCODEPAGE read GetIntegerInfo;
property CodePageANSI: Integer index LOCALE_IDEFAULTANSICODEPAGE read GetIntegerInfo;
property CodePageMAC: Integer index LOCALE_IDEFAULTMACCODEPAGE read GetIntegerInfo;
// Digits
property ListItemSeparator: Char index LOCALE_SLIST read GetCharInfo write SetCharInfo;
property Measure: Integer index LOCALE_IMEASURE read GetIntegerInfo write SetIntegerInfo;
property DecimalSeparator: Char index LOCALE_SDECIMAL read GetCharInfo write SetCharInfo;
property ThousandSeparator: Char index LOCALE_STHOUSAND read GetCharInfo write SetCharInfo;
property DigitGrouping: string index LOCALE_SGROUPING read GetStringInfo write SetStringInfo;
property NumberOfFractionalDigits: Integer index LOCALE_IDIGITS read GetIntegerInfo write SetIntegerInfo;
property LeadingZeros: Integer index LOCALE_ILZERO read GetIntegerInfo write SetIntegerInfo;
property NegativeNumberMode: Integer index LOCALE_INEGNUMBER read GetIntegerInfo write SetIntegerInfo;
property NativeDigits: string index LOCALE_SNATIVEDIGITS read GetStringInfo;
property DigitSubstitution: Integer index LOCALE_IDIGITSUBSTITUTION read GetIntegerInfo;
// Monetary
property MonetarySymbolLocal: string index LOCALE_SCURRENCY read GetStringInfo write SetStringInfo;
property MonetarySymbolIntl: string index LOCALE_SINTLSYMBOL read GetStringInfo;
property MonetaryDecimalSeparator: Char index LOCALE_SMONDECIMALSEP read GetCharInfo write SetCharInfo;
property MonetaryThousandsSeparator: Char index LOCALE_SMONTHOUSANDSEP read GetCharInfo write SetCharInfo;
property MonetaryGrouping: string index LOCALE_SMONGROUPING read GetStringInfo write SetStringInfo;
property NumberOfLocalMonetaryDigits: Integer index LOCALE_ICURRDIGITS read GetIntegerInfo write SetIntegerInfo;
property NumberOfIntlMonetaryDigits: Integer index LOCALE_IINTLCURRDIGITS read GetIntegerInfo;
property PositiveCurrencyMode: string index LOCALE_ICURRENCY read GetStringInfo write SetStringInfo;
property NegativeCurrencyMode: string index LOCALE_INEGCURR read GetStringInfo write SetStringInfo;
property EnglishCurrencyName: string index LOCALE_SENGCURRNAME read GetStringInfo;
property NativeCurrencyName: string index LOCALE_SNATIVECURRNAME read GetStringInfo;
// Date and time
property DateSeparator: Char index LOCALE_SDATE read GetCharInfo write SetCharInfo;
property TimeSeparator: Char index LOCALE_STIME read GetCharInfo write SetCharInfo;
property ShortDateFormat: string index LOCALE_SSHORTDATE read GetStringInfo write SetStringInfo;
property LongDateFormat: string index LOCALE_SLONGDATE read GetStringInfo write SetStringInfo;
property TimeFormatString: string index LOCALE_STIMEFORMAT read GetStringInfo write SetStringInfo;
property ShortDateOrdering: Integer index LOCALE_IDATE read GetIntegerInfo;
property LongDateOrdering: Integer index LOCALE_ILDATE read GetIntegerInfo;
property TimeFormatSpecifier: Integer index LOCALE_ITIME read GetIntegerInfo write SetIntegerInfo;
property TimeMarkerPosition: Integer index LOCALE_ITIMEMARKPOSN read GetIntegerInfo;
property CenturyFormatSpecifier: Integer index LOCALE_ICENTURY read GetIntegerInfo;
property LeadZerosInTime: Integer index LOCALE_ITLZERO read GetIntegerInfo;
property LeadZerosInDay: Integer index LOCALE_IDAYLZERO read GetIntegerInfo;
property LeadZerosInMonth: Integer index LOCALE_IMONLZERO read GetIntegerInfo;
property AMDesignator: string index LOCALE_S1159 read GetStringInfo write SetStringInfo;
property PMDesignator: string index LOCALE_S2359 read GetStringInfo write SetStringInfo;
property YearMonthFormat: string index LOCALE_SYEARMONTH read GetStringInfo write SetStringInfo;
// Calendar
property CalendarType: Integer index LOCALE_ICALENDARTYPE read GetIntegerInfo write SetIntegerInfo;
property AdditionalCaledarTypes: Integer index LOCALE_IOPTIONALCALENDAR read GetIntegerInfo;
property FirstDayOfWeek: Integer index LOCALE_IFIRSTDAYOFWEEK read GetIntegerInfo write SetIntegerInfo;
property FirstWeekOfYear: Integer index LOCALE_IFIRSTWEEKOFYEAR read GetIntegerInfo write SetIntegerInfo;
// Day and month names
property LongDayNames[Day: TJclLocalesDays]: string read GetLongDayNames;
property AbbreviatedDayNames[Day: TJclLocalesDays]: string read GetAbbreviatedDayNames;
property LongMonthNames[Month: TJclLocalesMonths]: string read GetLongMonthNames;
property AbbreviatedMonthNames[Month: TJclLocalesMonths]: string read GetAbbreviatedMonthNames;
// Sign
property PositiveSign: string index LOCALE_SPOSITIVESIGN read GetStringInfo write SetStringInfo;
property NegativeSign: string index LOCALE_SNEGATIVESIGN read GetStringInfo write SetStringInfo;
property PositiveSignPos: Integer index LOCALE_IPOSSIGNPOSN read GetIntegerInfo;
property NegativeSignPos: Integer index LOCALE_INEGSIGNPOSN read GetIntegerInfo;
property PosOfPositiveMonetarySymbol: Integer index LOCALE_IPOSSYMPRECEDES read GetIntegerInfo;
property SepOfPositiveMonetarySymbol: Integer index LOCALE_IPOSSEPBYSPACE read GetIntegerInfo;
property PosOfNegativeMonetarySymbol: Integer index LOCALE_INEGSYMPRECEDES read GetIntegerInfo;
property SepOfNegativeMonetarySymbol: Integer index LOCALE_INEGSEPBYSPACE read GetIntegerInfo;
// Misc
property DefaultPaperSize: Integer index LOCALE_IPAPERSIZE read GetIntegerInfo;
property FontSignature: string index LOCALE_FONTSIGNATURE read GetStringInfo;
property LocalizedSortName: string index LOCALE_SSORTNAME read GetStringInfo;
// Calendar Info
property Calendars: TStrings read GetCalendars;
property CalendarIntegerInfo[Calendar: CALID; InfoType: Integer]: Integer read GetCalendarIntegerInfo;
property CalendarStringInfo[Calendar: CALID; InfoType: Integer]: string read GetCalendarStringInfo;
property CalTwoDigitYearMax[Calendar: CALID]: Integer read GetCalTwoDigitYearMax;
end;
TJclLocalesKind = (lkInstalled, lkSupported);
TJclLocalesList = class(TObjectList)
private
FCodePages: TStringList;
FKind: TJclLocalesKind;
function GetItemFromLangID(LangID: LANGID): TJclLocaleInfo;
function GetItemFromLangIDPrimary(LangIDPrimary: Word): TJclLocaleInfo;
function GetItemFromLocaleID(LocaleID: LCID): TJclLocaleInfo;
function GetItems(Index: Integer): TJclLocaleInfo;
function GetCodePages: TStrings;
protected
procedure CreateList;
public
constructor Create(AKind: TJclLocalesKind = lkInstalled);
destructor Destroy; override;
procedure FillStrings(Strings: TStrings; InfoType: Integer);
property CodePages: TStrings read GetCodePages;
property ItemFromLangID[LangID: LANGID]: TJclLocaleInfo read GetItemFromLangID;
property ItemFromLangIDPrimary[LangIDPrimary: Word]: TJclLocaleInfo read GetItemFromLangIDPrimary;
property ItemFromLocaleID[LocaleID: LCID]: TJclLocaleInfo read GetItemFromLocaleID;
property Items[Index: Integer]: TJclLocaleInfo read GetItems; default;
property Kind: TJclLocalesKind read FKind;
end;
// Keyboard layouts
TJclKeybLayoutFlag = (klReorder, klUnloadPrevious, klSetForProcess,
klActivate, klNotEllShell, klReplaceLang, klSubstituteOK);
TJclKeybLayoutFlags = set of TJclKeybLayoutFlag;
TJclKeyboardLayoutList = class;
TJclAvailableKeybLayout = class(TObject)
private
FIdentifier: DWORD;
FLayoutID: Word;
FLayoutFile: string;
FOwner: TJclKeyboardLayoutList;
FName: string;
function GetIdentifierName: string;
function GetLayoutFileExists: Boolean;
public
function Load(const LoadFlags: TJclKeybLayoutFlags): Boolean;
property Identifier: DWORD read FIdentifier;
property IdentifierName: string read GetIdentifierName;
property LayoutID: Word read FLayoutID;
property LayoutFile: string read FLayoutFile;
property LayoutFileExists: Boolean read GetLayoutFileExists;
property Name: string read FName;
end;
TJclKeyboardLayout = class(TObject)
private
FLayout: HKL;
FLocaleInfo: TJclLocaleInfo;
FOwner: TJclKeyboardLayoutList;
function GetDeviceHandle: Word;
function GetDisplayName: string;
function GetLocaleID: Word;
function GetLocaleInfo: TJclLocaleInfo;
function GetVariationName: string;
public
constructor Create(AOwner: TJclKeyboardLayoutList; ALayout: HKL);
destructor Destroy; override;
function Activate(ActivateFlags: TJclKeybLayoutFlags = []): Boolean;
function Unload: Boolean;
property DeviceHandle: Word read GetDeviceHandle;
property DisplayName: string read GetDisplayName;
property Layout: HKL read FLayout;
property LocaleID: Word read GetLocaleID;
property LocaleInfo: TJclLocaleInfo read GetLocaleInfo;
property VariationName: string read GetVariationName;
end;
TJclKeyboardLayoutList = class(TObject)
private
FAvailableLayouts: TObjectList;
FList: TObjectList;
FOnRefresh: TNotifyEvent;
function GetCount: Integer;
function GetItems(Index: Integer): TJclKeyboardLayout;
function GetActiveLayout: TJclKeyboardLayout;
function GetItemFromHKL(Layout: HKL): TJclKeyboardLayout;
function GetLayoutFromLocaleID(LocaleID: Word): TJclKeyboardLayout;
function GetAvailableLayoutCount: Integer;
function GetAvailableLayouts(Index: Integer): TJclAvailableKeybLayout;
protected
procedure CreateAvailableLayouts;
procedure DoRefresh; dynamic;
public
constructor Create;
destructor Destroy; override;
function ActivatePrevLayout(ActivateFlags: TJclKeybLayoutFlags = []): Boolean;
function ActivateNextLayout(ActivateFlags: TJclKeybLayoutFlags = []): Boolean;
function LoadLayout(const LayoutName: string; LoadFlags: TJclKeybLayoutFlags): Boolean;
procedure Refresh;
property ActiveLayout: TJclKeyboardLayout read GetActiveLayout;
property AvailableLayouts[Index: Integer]: TJclAvailableKeybLayout read GetAvailableLayouts;
property AvailableLayoutCount: Integer read GetAvailableLayoutCount;
property Count: Integer read GetCount;
property ItemFromHKL[Layout: HKL]: TJclKeyboardLayout read GetItemFromHKL;
property Items[Index: Integer]: TJclKeyboardLayout read GetItems; default;
property LayoutFromLocaleID[LocaleID: Word]: TJclKeyboardLayout read GetLayoutFromLocaleID;
property OnRefresh: TNotifyEvent read FOnRefresh write FOnRefresh;
end;
// Various routines
procedure JclLocalesInfoList(const Strings: TStrings; InfoType: Integer = LOCALE_SENGCOUNTRY);
implementation
uses
{$IFDEF FPC}
WinSysUt,
{$ENDIF FPC}
SysConst, JclFileUtils, JclRegistry, JclStrings, JclSysInfo;
const
JclMaxKeyboardLayouts = 16;
LocaleUseAcp: array [Boolean] of DWORD = (0, LOCALE_USE_CP_ACP);
function KeybLayoutFlagsToDWORD(const ActivateFlags: TJclKeybLayoutFlags;
const LoadMode: Boolean): DWORD;
begin
Result := 0;
if klReorder in ActivateFlags then
Inc(Result, KLF_REORDER);
if (klUnloadPrevious in ActivateFlags) and IsWinNT then
Inc(Result, KLF_UNLOADPREVIOUS);
if (klSetForProcess in ActivateFlags) and IsWin2K then
Inc(Result, KLF_SETFORPROCESS);
if LoadMode then
begin
if klActivate in ActivateFlags then
Inc(Result, KLF_ACTIVATE);
if klNotEllShell in ActivateFlags then
Inc(Result, KLF_NOTELLSHELL);
if (klReplaceLang in ActivateFlags) and not IsWinNT3 then
Inc(Result, KLF_REPLACELANG);
if klSubstituteOK in ActivateFlags then
Inc(Result, KLF_SUBSTITUTE_OK);
end;
end;
// EnumXXX functions helper thread variables
threadvar
ProcessedLocaleInfoList: TStrings;
ProcessedLocalesList: TJclLocalesList;
//=== { TJclLocaleInfo } =====================================================
constructor TJclLocaleInfo.Create(ALocaleID: LCID);
begin
inherited Create;
FLocaleID := ALocaleID;
FUseSystemACP := True;
FValidDateFormatLists := [];
end;
destructor TJclLocaleInfo.Destroy;
var
DateFormat: TJclLocaleDateFormats;
begin
FreeAndNil(FCalendars);
for DateFormat := Low(DateFormat) to High(DateFormat) do
FreeAndNil(FDateFormats[DateFormat]);
FreeAndNil(FTimeFormats);
inherited Destroy;
end;
function TJclLocaleInfo.GetAbbreviatedDayNames(Day: TJclLocalesDays): string;
begin
Result := GetStringInfo(LOCALE_SABBREVDAYNAME1 + Day - 1);
end;
function TJclLocaleInfo.GetAbbreviatedMonthNames(Month: TJclLocalesMonths): string;
var
Param: DWORD;
begin
case Month of
1..12:
Param := LOCALE_SABBREVMONTHNAME1 + Month - 1;
13:
Param := LOCALE_SABBREVMONTHNAME13;
else
raise ERangeError.CreateRes(@SRangeError);
end;
Result := GetStringInfo(Param);
end;
function TJclLocaleInfo.GetCalendarIntegerInfo(Calendar: CALID; InfoType: Integer): Integer;
var
Ret: DWORD;
begin
InfoType := InfoType or Integer(LocaleUseAcp[FUseSystemACP]) or CAL_RETURN_NUMBER;
Ret := JclWin32.RtdlGetCalendarInfoW(FLocaleID, Calendar, InfoType, nil, 0, @Result);
if Ret = 0 then
Ret := JclWin32.RtdlGetCalendarInfoA(FLocaleID, Calendar, InfoType, nil, 0, @Result);
if Ret = 0 then
Result := 0;
end;
function TJclLocaleInfo.GetCalTwoDigitYearMax(Calendar: CALID): Integer;
begin
Result := GetCalendarIntegerInfo(Calendar, CAL_ITWODIGITYEARMAX);
end;
function EnumCalendarInfoProcEx(lpCalendarInfoString: PChar; Calendar: CALID): BOOL; stdcall;
begin
ProcessedLocaleInfoList.AddObject(lpCalendarInfoString, Pointer(Calendar));
Result := True;
end;
function EnumCalendarInfoProcName(lpCalendarInfoString: PChar): BOOL; stdcall;
begin
ProcessedLocaleInfoList.Add(lpCalendarInfoString);
Result := True;
end;
function TJclLocaleInfo.GetCalendars: TStrings;
var
C: CALTYPE;
begin
if not FValidCalendars then
begin
if FCalendars = nil then
FCalendars := TStringList.Create
else
FCalendars.Clear;
ProcessedLocaleInfoList := FCalendars;
try
C := CAL_SCALNAME or LocaleUseAcp[FUseSystemACP];
if not JclWin32.RtdlEnumCalendarInfoExA(EnumCalendarInfoProcEx, FLocaleID, ENUM_ALL_CALENDARS, C) then
Windows.EnumCalendarInfo(@EnumCalendarInfoProcName, FLocaleID, ENUM_ALL_CALENDARS, C);
FValidCalendars := True;
finally
ProcessedLocaleInfoList := nil;
end;
end;
Result := FCalendars;
end;
function TJclLocaleInfo.GetCalendarStringInfo(Calendar: CALID; InfoType: Integer): string;
var
Buffer: Pointer;
BufferSize: Integer;
Ret: DWORD;
begin
Result := '';
InfoType := InfoType or Integer(LocaleUseAcp[FUseSystemACP]);
Buffer := nil;
try
BufferSize := 128;
repeat
ReallocMem(Buffer, BufferSize);
Ret := RtdlGetCalendarInfoW(FLocaleID, Calendar, InfoType, Buffer, BufferSize, nil);
if (Ret = 0) and (GetLastError = ERROR_INSUFFICIENT_BUFFER) then
BufferSize := RtdlGetCalendarInfoW(FLocaleID, Calendar, InfoType, Buffer, 0, nil) * 2;
until (Ret > 0) or (GetLastError <> ERROR_INSUFFICIENT_BUFFER);
if Ret > 0 then
Result := PWideChar(Buffer)
else
begin
BufferSize := 64;
repeat
ReallocMem(Buffer, BufferSize);
Ret := RtdlGetCalendarInfoA(FLocaleID, Calendar, InfoType, Buffer, BufferSize, nil);
if (Ret = 0) and (GetLastError = ERROR_INSUFFICIENT_BUFFER) then
BufferSize := RtdlGetCalendarInfoA(FLocaleID, Calendar, InfoType, Buffer, 0, nil);
until (Ret > 0) or (GetLastError <> ERROR_INSUFFICIENT_BUFFER);
if Ret > 0 then
Result := PChar(Buffer);
end;
finally
FreeMem(Buffer);
end;
end;
function TJclLocaleInfo.GetCharInfo(InfoType: Integer): Char;
var
S: string;
begin
S := GetStringInfo(InfoType);
if Length(S) >= 1 then
Result := S[1]
else
Result := ' ';
end;
function TJclLocaleInfo.GetDateFormats(Format: TJclLocaleDateFormats): TStrings;
const
DateFormats: array [TJclLocaleDateFormats] of DWORD =
(DATE_SHORTDATE, DATE_LONGDATE, DATE_YEARMONTH);
function EnumDateFormatsProc(lpDateFormatString: LPSTR): BOOL; stdcall;
begin
ProcessedLocaleInfoList.Add(lpDateFormatString);
DWORD(Result) := 1;
end;
begin
if not (Format in FValidDateFormatLists) then
begin
if FDateFormats[Format] = nil then
FDateFormats[Format] := TStringList.Create
else
FDateFormats[Format].Clear;
ProcessedLocaleInfoList := FDateFormats[Format];
try
Windows.EnumDateFormats(@EnumDateFormatsProc, FLocaleID, DateFormats[Format] or
LocaleUseAcp[FUseSystemACP]);
Include(FValidDateFormatLists, Format);
finally
ProcessedLocaleInfoList := nil;
end;
end;
Result := FDateFormats[Format];
end;
function TJclLocaleInfo.GetFontCharset: Byte;
type
TCharsetEntry = record
CodePage: Word;
Charset: Byte;
end;
const
CharsetTable: array [1..10] of TCharsetEntry =
(
(CodePage: 1252; Charset: ANSI_CHARSET),
(CodePage: 1250; Charset: EASTEUROPE_CHARSET),
(CodePage: 1251; Charset: RUSSIAN_CHARSET),
(CodePage: 1253; Charset: GREEK_CHARSET),
(CodePage: 1254; Charset: TURKISH_CHARSET),
(CodePage: 1255; Charset: HEBREW_CHARSET),
(CodePage: 1256; Charset: ARABIC_CHARSET),
(CodePage: 1257; Charset: BALTIC_CHARSET),
(CodePage: 874; Charset: THAI_CHARSET),
(CodePage: 932; Charset: SHIFTJIS_CHARSET)
);
var
I, CpANSI: Integer;
begin
Result := DEFAULT_CHARSET;
CpANSI := CodePageANSI;
for I := Low(CharsetTable) to High(CharsetTable) do
if CharsetTable[I].CodePage = CpANSI then
begin
Result := CharsetTable[I].Charset;
Break;
end;
end;
function TJclLocaleInfo.GetIntegerInfo(InfoType: Integer): Integer;
begin
Result := StrToIntDef(GetStringInfo(InfoType), 0);
end;
function TJclLocaleInfo.GetLangID: LANGID;
begin
Result := LANGIDFROMLCID(FLocaleID);
end;
function TJclLocaleInfo.GetLangIDPrimary: Word;
begin
Result := PRIMARYLANGID(LangID);
end;
function TJclLocaleInfo.GetLangIDSub: Word;
begin
Result := SUBLANGID(LangID);
end;
function TJclLocaleInfo.GetLongDayNames(Day: TJclLocalesDays): string;
begin
Result := GetStringInfo(LOCALE_SDAYNAME1 + Day - 1);
end;
function TJclLocaleInfo.GetLongMonthNames(Month: TJclLocalesMonths): string;
var
Param: DWORD;
begin
if Month = 13 then
Param := LOCALE_SMONTHNAME13
else
Param := LOCALE_SMONTHNAME1 + Month - 1;
Result := GetStringInfo(Param);
end;
function TJclLocaleInfo.GetSortID: Word;
begin
Result := SORTIDFROMLCID(FLocaleID);
end;
function TJclLocaleInfo.GetStringInfo(InfoType: Integer): string;
var
Res: Integer;
W: PWideChar;
begin
InfoType := InfoType or Integer(LocaleUseAcp[FUseSystemACP]);
Res := GetLocaleInfoA(FLocaleID, InfoType, nil, 0);
if Res > 0 then
begin
SetString(Result, nil, Res);
Res := Windows.GetLocaleInfoA(FLocaleID, InfoType, PChar(Result), Res);
StrResetLength(Result);
// Note: GetLocaleInfo returns sometimes incorrect length of string on Win95 (usually plus 1),
// that's why StrResetLength is called.
end
else // GetLocaleInfoA failed
if IsWinNT then
begin
Res := GetLocaleInfoW(FLocaleID, InfoType, nil, 0);
if Res > 0 then
begin
GetMem(W, Res * SizeOf(WideChar));
Res := Windows.GetLocaleInfoW(FLocaleID, InfoType, W, Res);
Result := WideCharToString(W);
FreeMem(W);
end;
end;
if Res = 0 then
Result := '';
end;
function TJclLocaleInfo.GetTimeFormats: TStrings;
function EnumTimeFormatsProc(lpTimeFormatString: LPSTR): BOOL; stdcall;
begin
ProcessedLocaleInfoList.Add(lpTimeFormatString);
DWORD(Result) := 1;
end;
begin
if not FValidTimeFormatLists then
begin
if FTimeFormats = nil then
FTimeFormats := TStringList.Create
else
FTimeFormats.Clear;
ProcessedLocaleInfoList := FTimeFormats;
try
Windows.EnumTimeFormats(@EnumTimeFormatsProc, FLocaleID, LocaleUseAcp[FUseSystemACP]);
FValidTimeFormatLists := True;
finally
ProcessedLocaleInfoList := nil;
end;
end;
Result := FTimeFormats;
end;
procedure TJclLocaleInfo.SetCharInfo(InfoType: Integer; const Value: Char);
begin
SetStringInfo(InfoType, Value);
end;
procedure TJclLocaleInfo.SetIntegerInfo(InfoType: Integer; const Value: Integer);
begin
SetStringInfo(InfoType, IntToStr(Value));
end;
procedure TJclLocaleInfo.SetStringInfo(InfoType: Integer; const Value: string);
begin
Win32Check(Windows.SetLocaleInfo(FLocaleID, InfoType, PChar(Value)));
end;
procedure TJclLocaleInfo.SetUseSystemACP(const Value: Boolean);
begin
if FUseSystemACP <> Value then
begin
FUseSystemACP := Value;
FValidCalendars := False;
FValidDateFormatLists := [];
FValidTimeFormatLists := False;
end;
end;
//=== { TJclLocalesList } ====================================================
constructor TJclLocalesList.Create(AKind: TJclLocalesKind);
begin
inherited Create(True);
FCodePages := TStringList.Create;
FKind := AKind;
CreateList;
end;
destructor TJclLocalesList.Destroy;
begin
FreeAndNil(FCodePages);
inherited Destroy;
end;
procedure TJclLocalesList.CreateList;
const
Flags: array [TJclLocalesKind] of DWORD = (LCID_INSTALLED, LCID_SUPPORTED);
function EnumLocalesProc(lpLocaleString: LPSTR): BOOL; stdcall;
var
LocaleID: LCID;
begin
LocaleID := StrToIntDef('$' + Copy(lpLocaleString, 5, 4), 0);
if LocaleID > 0 then
ProcessedLocalesList.Add(TJclLocaleInfo.Create(LocaleID));
DWORD(Result) := 1;
end;
function EnumCodePagesProc(lpCodePageString: LPSTR): BOOL; stdcall;
begin
ProcessedLocalesList.CodePages.AddObject(lpCodePageString, Pointer(StrToIntDef(lpCodePageString, 0)));
DWORD(Result) := 1;
end;
begin
ProcessedLocalesList := Self;
try
Win32Check(Windows.EnumSystemLocales(@EnumLocalesProc, Flags[FKind]));
Win32Check(Windows.EnumSystemCodePages(@EnumCodePagesProc, Flags[FKind]));
finally
ProcessedLocalesList := nil;
end;
end;
procedure TJclLocalesList.FillStrings(Strings: TStrings; InfoType: Integer);
var
I: Integer;
begin
Strings.BeginUpdate;
try
for I := 0 to Count - 1 do
with Items[I] do
Strings.AddObject(StringInfo[InfoType], Pointer(LocaleId));
finally
Strings.EndUpdate;
end;
end;
function TJclLocalesList.GetCodePages: TStrings;
begin
Result := FCodePages;
end;
function TJclLocalesList.GetItemFromLangID(LangID: LANGID): TJclLocaleInfo;
var
I: Integer;
begin
Result := nil;
for I := 0 to Count - 1 do
if Items[I].LangID = LangID then
begin
Result := Items[I];
Break;
end;
end;
function TJclLocalesList.GetItemFromLangIDPrimary(LangIDPrimary: Word): TJclLocaleInfo;
var
I: Integer;
begin
Result := nil;
for I := 0 to Count - 1 do
if Items[I].LangIDPrimary = LangIDPrimary then
begin
Result := Items[I];
Break;
end;
end;
function TJclLocalesList.GetItemFromLocaleID(LocaleID: LCID): TJclLocaleInfo;
var
I: Integer;
begin
Result := nil;
for I := 0 to Count - 1 do
if Items[I].LocaleID = LocaleID then
begin
Result := Items[I];
Break;
end;
end;
function TJclLocalesList.GetItems(Index: Integer): TJclLocaleInfo;
begin
Result := TJclLocaleInfo(inherited Items[Index]);
end;
//=== { TJclAvailableKeybLayout } ============================================
function TJclAvailableKeybLayout.GetIdentifierName: string;
begin
Result := Format('%.8x', [FIdentifier]);
end;
function TJclAvailableKeybLayout.GetLayoutFileExists: Boolean;
begin
Result := FileExists(PathAddSeparator(GetWindowsSystemFolder) + LayoutFile);
end;
function TJclAvailableKeybLayout.Load(const LoadFlags: TJclKeybLayoutFlags): Boolean;
begin
Result := FOwner.LoadLayout(IdentifierName, LoadFlags);
end;
//=== { TJclKeyboardLayout } =================================================
constructor TJclKeyboardLayout.Create(AOwner: TJclKeyboardLayoutList; ALayout: HKL);
begin
inherited Create;
FLayout := ALayout;
FOwner := AOwner;
end;
destructor TJclKeyboardLayout.Destroy;
begin
FreeAndNil(FLocaleInfo);
inherited Destroy;
end;
function TJclKeyboardLayout.Activate(ActivateFlags: TJclKeybLayoutFlags): Boolean;
begin
Result := ActivateKeyboardLayout(FLayout, KeybLayoutFlagsToDWORD(ActivateFlags, False)) {$IFNDEF FPC} <> 0 {$ENDIF};
end;
function TJclKeyboardLayout.GetDeviceHandle: Word;
begin
Result := HiWord(FLayout);
end;
function TJclKeyboardLayout.GetDisplayName: string;
begin
Result := LocaleInfo.LocalizedLangName;
if HiWord(FLayout) <> LoWord(FLayout) then
Result := Result + ' - ' + VariationName;
end;
function TJclKeyboardLayout.GetLocaleID: Word;
begin
Result := LoWord(FLayout);
end;
function TJclKeyboardLayout.GetLocaleInfo: TJclLocaleInfo;
begin
if FLocaleInfo = nil then
FLocaleInfo := TJclLocaleInfo.Create(MAKELCID(GetLocaleID, SORT_DEFAULT));
Result := FLocaleInfo;
end;
function TJclKeyboardLayout.GetVariationName: string;
var
I: Integer;
Ident: DWORD;
begin
Result := '';
if HiWord(FLayout) = LoWord(FLayout) then
Ident := LoWord(FLayout)
else
Ident := FLayout and $0FFFFFFF;
with FOwner do
for I := 0 to AvailableLayoutCount - 1 do
with AvailableLayouts[I] do
if (LoWord(Identifier) = LoWord(Ident)) and (LayoutID = HiWord(Ident)) then
begin
Result := Name;
Break;
end;
end;
function TJclKeyboardLayout.Unload: Boolean;
begin
Result := Windows.UnloadKeyboardLayout(FLayout);
if Result then
FOwner.Refresh;
end;
//=== { TJclKeyboardLayoutList } =============================================
constructor TJclKeyboardLayoutList.Create;
begin
inherited Create;
FList := TObjectList.Create(True);
CreateAvailableLayouts;
Refresh;
end;
destructor TJclKeyboardLayoutList.Destroy;
begin
FreeAndNil(FAvailableLayouts);
FreeAndNil(FList);
inherited Destroy;
end;
function TJclKeyboardLayoutList.ActivateNextLayout(ActivateFlags: TJclKeybLayoutFlags): Boolean;
begin
Result := ActivateKeyboardLayout(HKL_NEXT, KeybLayoutFlagsToDWORD(ActivateFlags, False)) {$IFNDEF FPC} <> 0 {$ENDIF};
end;
function TJclKeyboardLayoutList.ActivatePrevLayout(
ActivateFlags: TJclKeybLayoutFlags): Boolean;
begin
Result := ActivateKeyboardLayout(HKL_PREV, KeybLayoutFlagsToDWORD(ActivateFlags, False)) {$IFNDEF FPC} <> 0 {$ENDIF};
end;
// Documentation:
// HOWTO: How to Find the Available Keyboard Layouts Under Windows NT
// Microsoft Knowledge Base Article - 139571
// http://support.microsoft.com/default.aspx?scid=kb;en-us;139571
// Description of Typical Control Subkeys of the HKLM Registry Key
// Microsoft Knowledge Base Article - 250447
// http://support.microsoft.com/default.aspx?scid=kb;en-us;250447
// http://www.microsoft.com/windows2000/techinfo/reskit/en-us/regentry/28326.asp
procedure TJclKeyboardLayoutList.CreateAvailableLayouts;
const
cLayoutsKey = 'SYSTEM\CurrentControlSet\Control\Keyboard Layouts';
var
I: Integer;
KeyNames: TStringList;
Item: TJclAvailableKeybLayout;
Layout: string;
begin
FAvailableLayouts := TObjectList.Create(True);
KeyNames := TStringList.Create;
try
RegGetKeyNames(HKEY_LOCAL_MACHINE, cLayoutsKey, KeyNames);
for I := 0 to KeyNames.Count - 1 do
begin
Layout := cLayoutsKey + '\' + KeyNames[I];
Item := TJclAvailableKeybLayout.Create;
Item.FOwner := Self;
Item.FIdentifier := StrToIntDef('$' + KeyNames[I], 0);
Item.FName := RegReadStringDef(HKEY_LOCAL_MACHINE, Layout, 'Layout Text', '');
Item.FLayoutFile := RegReadStringDef(HKEY_LOCAL_MACHINE, Layout, 'Layout File', '');
Item.FLayoutID := StrToIntDef('$' + RegReadStringDef(HKEY_LOCAL_MACHINE, Layout, 'Layout Id', ''), 0);
FAvailableLayouts.Add(Item);
end;
finally
KeyNames.Free;
end;
end;
procedure TJclKeyboardLayoutList.DoRefresh;
begin
if Assigned(FOnRefresh) then
FOnRefresh(Self);
end;
function TJclKeyboardLayoutList.GetActiveLayout: TJclKeyboardLayout;
begin
Result := ItemFromHKL[GetKeyboardLayout(0)];
end;
function TJclKeyboardLayoutList.GetAvailableLayoutCount: Integer;
begin
Result := FAvailableLayouts.Count;
end;
function TJclKeyboardLayoutList.GetAvailableLayouts(Index: Integer): TJclAvailableKeybLayout;
begin
Result := TJclAvailableKeybLayout(FAvailableLayouts[Index]);
end;
function TJclKeyboardLayoutList.GetCount: Integer;
begin
Result := FList.Count;
end;
function TJclKeyboardLayoutList.GetItemFromHKL(Layout: HKL): TJclKeyboardLayout;
var
I: Integer;
begin
Result := nil;
for I := 0 to Count - 1 do
if Items[I].Layout = Layout then
begin
Result := Items[I];
Break;
end;
end;
function TJclKeyboardLayoutList.GetItems(Index: Integer): TJclKeyboardLayout;
begin
Result := TJclKeyboardLayout(FList[Index]);
end;
function TJclKeyboardLayoutList.GetLayoutFromLocaleID(LocaleID: Word): TJclKeyboardLayout;
var
I: Integer;
begin
Result := nil;
for I := 0 to Count - 1 do
if Items[I].LocaleID = LocaleID then
begin
Result := Items[I];
Break;
end;
end;
function TJclKeyboardLayoutList.LoadLayout(const LayoutName: string;
LoadFlags: TJclKeybLayoutFlags): Boolean;
begin
Result := LoadKeyboardLayout(PChar(LayoutName),
KeybLayoutFlagsToDWORD(LoadFlags, True)) <> 0;
if Result then
Refresh;
end;
procedure TJclKeyboardLayoutList.Refresh;
var
Cnt, I: Integer;
Layouts: array [1..JclMaxKeyboardLayouts] of HKL;
begin
Cnt := Windows.GetKeyboardLayoutList(JclMaxKeyboardLayouts, Layouts);
// Note: GetKeyboardLayoutList doesn't work as expected, when pass 0 to nBuff it always returns 0
// on Win95.
FList.Clear;
for I := 1 to Cnt do
FList.Add(TJclKeyboardLayout.Create(Self, Layouts[I]));
DoRefresh;
end;
{ TODO : related MSDN entries, maybe to implement }
// Enabling the Shift Lock Feature on Windows NT 4.0
// Microsoft Knowledge Base Article - 174543
// http://support.microsoft.com/default.aspx?scid=kb;en-us;174543
//=== Various routines =======================================================
procedure JclLocalesInfoList(const Strings: TStrings; InfoType: Integer);
begin
with TJclLocalesList.Create(lkInstalled) do
try
FillStrings(Strings, InfoType);
finally
Free;
end;
end;
// History:
// $Log: JclLocales.pas,v $
// Revision 1.16 2005/12/26 18:03:58 outchy
// Enhanced bds support (including C#1 and D8)
// Introduction of dll experts
// Project types in templates
//
// Revision 1.15 2005/02/25 07:20:15 marquardt
// add section lines
//
// Revision 1.14 2005/02/24 16:34:52 marquardt
// remove divider lines, add section lines (unfinished)
//
// Revision 1.13 2005/02/06 03:37:52 mthoma
// Fixed [Code Library 0002479]: Wrong parameter count in callback function
//
// Revision 1.12 2004/10/17 21:00:15 mthoma
// cleaning
//
// Revision 1.11 2004/08/01 11:40:23 marquardt
// move constructors/destructors
//
// Revision 1.10 2004/07/31 06:21:03 marquardt
// fixing TStringLists, adding BeginUpdate/EndUpdate, finalization improved
//
// Revision 1.9 2004/07/29 07:58:21 marquardt
// inc files updated
//
// Revision 1.8 2004/06/14 11:05:52 marquardt
// symbols added to all ENDIFs and some other minor style changes like removing IFOPT
//
// Revision 1.7 2004/05/13 07:46:06 rrossmair
// changes for FPC 1.9.3+ compatibility
//
// Revision 1.6 2004/05/06 05:09:55 rrossmair
// Changes for FPC v1.9.4 compatibility
//
// Revision 1.5 2004/05/05 07:33:49 rrossmair
// header updated according to new policy: initial developers & contributors listed
//
// Revision 1.4 2004/04/06 04:55:17
// adapt compiler conditions, add log entry
//
end.