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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2020 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
The code included in this file is provided under the terms of the ISC license
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
To use, copy, modify, and/or distribute this software for any purpose with or
without fee is hereby granted provided that the above copyright notice and
this permission notice appear in all copies.
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
String String::fromCFString (CFStringRef cfString)
{
if (cfString == nullptr)
return {};
CFRange range = { 0, CFStringGetLength (cfString) };
CFIndex bytesNeeded = 0;
CFStringGetBytes (cfString, range, kCFStringEncodingUTF8, 0, false, nullptr, 0, &bytesNeeded);
HeapBlock<UInt8> utf8 (bytesNeeded + 1);
CFStringGetBytes (cfString, range, kCFStringEncodingUTF8, 0, false, utf8, bytesNeeded + 1, nullptr);
return String (CharPointer_UTF8 ((const CharPointer_UTF8::CharType*) utf8.get()),
CharPointer_UTF8 ((const CharPointer_UTF8::CharType*) utf8.get() + bytesNeeded));
}
CFStringRef String::toCFString() const
{
const char* const utf8 = toRawUTF8();
if (CFStringRef result = CFStringCreateWithBytes (kCFAllocatorDefault, (const UInt8*) utf8,
(CFIndex) strlen (utf8), kCFStringEncodingUTF8, false))
return result;
// If CFStringCreateWithBytes fails, it probably means there was a UTF8 format
// error, so we'll return an empty string rather than a null pointer.
return String().toCFString();
}
String String::convertToPrecomposedUnicode() const
{
#if JUCE_IOS
JUCE_AUTORELEASEPOOL
{
return nsStringToJuce ([juceStringToNS (*this) precomposedStringWithCanonicalMapping]);
}
#else
UnicodeMapping map;
map.unicodeEncoding = CreateTextEncoding (kTextEncodingUnicodeDefault,
kUnicodeNoSubset,
kTextEncodingDefaultFormat);
map.otherEncoding = CreateTextEncoding (kTextEncodingUnicodeDefault,
kUnicodeCanonicalCompVariant,
kTextEncodingDefaultFormat);
map.mappingVersion = kUnicodeUseLatestMapping;
UnicodeToTextInfo conversionInfo = {};
String result;
if (CreateUnicodeToTextInfo (&map, &conversionInfo) == noErr)
{
const size_t bytesNeeded = CharPointer_UTF16::getBytesRequiredFor (getCharPointer());
HeapBlock<char> tempOut;
tempOut.calloc (bytesNeeded + 4);
ByteCount bytesRead = 0;
ByteCount outputBufferSize = 0;
if (ConvertFromUnicodeToText (conversionInfo,
bytesNeeded, (ConstUniCharArrayPtr) toUTF16().getAddress(),
kUnicodeDefaultDirectionMask,
0, {}, {}, {},
bytesNeeded, &bytesRead,
&outputBufferSize, tempOut) == noErr)
{
result = String (CharPointer_UTF16 (reinterpret_cast<CharPointer_UTF16::CharType*> (tempOut.get())));
}
DisposeUnicodeToTextInfo (&conversionInfo);
}
return result;
#endif
}
} // namespace juce
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