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Adding new files for utitily functions to convert between native script and Unicode, 

bug 108029, r=pinkerton, sr=sfraser, a=asa.
This commit is contained in:
nhotta%netscape.com 2002-07-15 22:57:35 +00:00
Родитель 68b4565d1e
Коммит 31fdd3606d
3 изменённых файлов: 294 добавлений и 0 удалений
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54
widget/macbuild/widget.xml
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@ -1304,6 +1304,13 @@
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupportDebug.shlb</PATH>
@ -1585,6 +1592,11 @@
<PATH>nsTSMStrategy.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupportDebug.shlb</PATH>
@ -2843,6 +2855,13 @@
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupport.shlb</PATH>
@ -3124,6 +3143,11 @@
<PATH>nsTSMStrategy.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupport.shlb</PATH>
@ -4368,6 +4392,13 @@
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupportDebug.shlb</PATH>
@ -4639,6 +4670,11 @@
<PATH>nsTSMStrategy.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupportDebug.shlb</PATH>
@ -5883,6 +5919,13 @@
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
<FILEKIND>Text</FILEKIND>
<FILEFLAGS>Debug</FILEFLAGS>
</FILE>
<FILE>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupport.shlb</PATH>
@ -6154,6 +6197,11 @@
<PATH>nsTSMStrategy.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<PATHTYPE>Name</PATHTYPE>
<PATH>WidgetSupport.shlb</PATH>
@ -6475,6 +6523,12 @@
<PATH>nsMimeMapper.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
<FILEREF>
<TARGETNAME>widgetDebug.shlb</TARGETNAME>
<PATHTYPE>Name</PATHTYPE>
<PATH>nsMacNativeUnicodeConverter.cpp</PATH>
<PATHFORMAT>MacOS</PATHFORMAT>
</FILEREF>
</GROUP>
</GROUP>
<GROUP><NAME>Static Libs</NAME>

185
widget/src/mac/nsMacNativeUnicodeConverter.cpp Normal file
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@ -0,0 +1,185 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1
*
* 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 Mozilla.
*
* The Initial Developer of the Original Code is is Netscape
* Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* ***** END LICENSE BLOCK ***** */
#include "nsMemory.h"
#include "nsMacNativeUnicodeConverter.h"
#include <TextUtils.h>
#include <UnicodeConverter.h>
#include <Fonts.h>
#include <Memory>
//-------------------------------------------------------------------------
//
//
//-------------------------------------------------------------------------
nsresult nsMacNativeUnicodeConverter::ConvertScripttoUnicode(ScriptCode aScriptCode,
const char *aMultibyteStr,
PRInt32 aMultibyteStrLen,
PRUnichar **aUnicodeStr,
PRInt32 *aUnicodeStrLen)
{
NS_ENSURE_ARG(aUnicodeStr);
NS_ENSURE_ARG(aMultibyteStr);
*aUnicodeStr = nsnull;
*aUnicodeStrLen = 0;
TextEncoding textEncodingFromScript;
OSErr err = ::UpgradeScriptInfoToTextEncoding(aScriptCode,
kTextLanguageDontCare,
kTextRegionDontCare,
nsnull,
&textEncodingFromScript);
NS_ENSURE_TRUE(err == noErr, NS_ERROR_FAILURE);
TextToUnicodeInfo textToUnicodeInfo;
err = ::CreateTextToUnicodeInfoByEncoding(textEncodingFromScript, &textToUnicodeInfo);
NS_ENSURE_TRUE(err == noErr, NS_ERROR_FAILURE);
// for MacArabic and MacHebrew, the corresponding Unicode string could be up to
// six times as big.
UInt32 factor;
if (aScriptCode == smArabic ||
aScriptCode == smHebrew ||
aScriptCode == smExtArabic)
factor = 6;
else
factor = 2;
UniChar *unicodeStr = (UniChar *) nsMemory::Alloc(aMultibyteStrLen * factor);
if (!unicodeStr) {
::DisposeTextToUnicodeInfo(&textToUnicodeInfo);
return NS_ERROR_OUT_OF_MEMORY;
}
ByteCount sourceRead;
ByteCount unicodeLen;
err = ::ConvertFromTextToUnicode(textToUnicodeInfo,
aMultibyteStrLen,
(ConstLogicalAddress) aMultibyteStr,
kUnicodeUseFallbacksMask |
kUnicodeLooseMappingsMask,
0,nsnull,nsnull,nsnull,
aMultibyteStrLen * factor,
&sourceRead,
&unicodeLen,
unicodeStr);
if (err == noErr)
{
*aUnicodeStr = (PRUnichar *) unicodeStr;
*aUnicodeStrLen = unicodeLen / sizeof(UniChar); // byte count -> char count
}
::DisposeTextToUnicodeInfo(&textToUnicodeInfo);
return err == noErr ? NS_OK : NS_ERROR_FAILURE;
}
nsresult nsMacNativeUnicodeConverter::ConvertUnicodetoScript(const PRUnichar *aUnicodeStr,
PRInt32 aUnicodeStrLen,
char **aMultibyteStr,
PRInt32 *aMultibyteStrlen)
{
NS_ENSURE_ARG(aUnicodeStr);
NS_ENSURE_ARG(aMultibyteStr);
*aMultibyteStr = nsnull;
*aMultibyteStrlen = 0;
// Get a list of installed script.
ItemCount numberOfScriptCodes = ::GetScriptManagerVariable(smEnabled);
ScriptCode *scriptArray = (ScriptCode *) nsMemory::Alloc(sizeof(ScriptCode) * numberOfScriptCodes);
NS_ENSURE_TRUE(scriptArray, NS_ERROR_OUT_OF_MEMORY);
for (ScriptCode i = 0, j = 0; i <= smUninterp && j < numberOfScriptCodes; i++)
{
if (::GetScriptVariable(i, smScriptEnabled))
scriptArray[j++] = i;
}
OSErr err;
UnicodeToTextRunInfo unicodeToTextInfo;
err = ::CreateUnicodeToTextRunInfoByScriptCode(numberOfScriptCodes,
scriptArray,
&unicodeToTextInfo);
nsMemory::Free(scriptArray);
NS_ENSURE_TRUE(err == noErr, NS_ERROR_FAILURE);
ByteCount inputRead;
ItemCount scriptRunOutLen;
std::auto_ptr<ScriptCodeRun> scriptCodeRuns(new ScriptCodeRun[numberOfScriptCodes]);
if (!scriptCodeRuns.get()) {
::DisposeUnicodeToTextRunInfo(&unicodeToTextInfo);
return NS_ERROR_OUT_OF_MEMORY;
}
// Allocate 2 bytes per character.
// I think that would be enough for charset encodings used by legacy Macintosh apps.
LogicalAddress outputStr = (LogicalAddress) nsMemory::Alloc(aUnicodeStrLen * 2);
if (!outputStr)
{
::DisposeUnicodeToTextRunInfo(&unicodeToTextInfo);
return NS_ERROR_OUT_OF_MEMORY;
}
ByteCount outputLen = 0;
err = ::ConvertFromUnicodeToScriptCodeRun(unicodeToTextInfo,
aUnicodeStrLen * sizeof(UniChar),
(UniChar *) aUnicodeStr,
kUnicodeUseFallbacksBit |
kUnicodeLooseMappingsMask |
kUnicodeKeepSameEncodingBit,
0,
nsnull,
nsnull,
nsnull,
aUnicodeStrLen * sizeof(PRUnichar), // char count -> byte count
&inputRead,
&outputLen,
outputStr,
numberOfScriptCodes,
&scriptRunOutLen,
scriptCodeRuns.get());
if (outputLen > 0 &&
(err == noErr ||
err == kTECUnmappableElementErr ||
err == kTECOutputBufferFullStatus))
{
// set output as long as something got converted
// since this function is called as a fallback
*aMultibyteStr = (char *) outputStr;
*aMultibyteStrlen = outputLen;
err = noErr;
}
::DisposeUnicodeToTextRunInfo(&unicodeToTextInfo);
return err == noErr ? NS_OK : NS_ERROR_FAILURE;
}

55
widget/src/mac/nsMacNativeUnicodeConverter.h Normal file
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@ -0,0 +1,55 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1
*
* 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 Mozilla.
*
* The Initial Developer of the Original Code is is Netscape
* Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsMacNativeUnicodeConverter_h___
#define nsMacNativeUnicodeConverter_h___
#include "prtypes.h"
#include "nsError.h"
#include "nscore.h"
class nsISupports;
class nsMacNativeUnicodeConverter
{
public:
// utitily functions to convert between native script and Unicode
static nsresult ConvertScripttoUnicode(ScriptCode aScriptCode,
const char *aMultibyteStr,
PRInt32 aMultibyteStrLen,
PRUnichar **aUnicodeStr,
PRInt32 *aUnicodeStrLen);
static nsresult ConvertUnicodetoScript(const PRUnichar *aUnicodeStr,
PRInt32 aUnicodeStrLen,
char **aMultibyteStr,
PRInt32 *aMultibyteStrlen);
};
#endif // nsMacNativeUnicodeConverter_h___