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/*
* File: MacString.cc
* Summary: Wrapper around an immutable CFString.
* Written by: Jesse Jones (jesjones@mindspring.com)
*
* Change History (most recent first):
*
* <1> 6/04/02 JDJ Created
*/
#include "AppHdr.h"
#include "MacString.h"
#if macintosh
#include <CoreFoundation/CFString.h>
#include "debug.h"
// ========================================================================
// Internal Functions
// ========================================================================
//---------------------------------------------------------------
//
// ThrowIf
//
//---------------------------------------------------------------
static void ThrowIf(bool predicate, const std::string& text)
{
if (predicate)
throw std::runtime_error(text);
}
#if __MWERKS__
#pragma mark -
#endif
// ============================================================================
// class MacString
// ============================================================================
//---------------------------------------------------------------
//
// MacString::~MacString
//
//---------------------------------------------------------------
MacString::~MacString()
{
CFRelease(mString);
}
//---------------------------------------------------------------
//
// MacString::MacString ()
//
//---------------------------------------------------------------
MacString::MacString()
{
mString = CFStringCreateWithCharacters(kCFAllocatorSystemDefault, NULL, 0);
ThrowIf(mString == NULL, "Couldn't create the CFString");
}
//---------------------------------------------------------------
//
// MacString::MacString (unsigned char*)
//
//---------------------------------------------------------------
MacString::MacString(const unsigned char* str)
{
ASSERT(str != NULL);
CFStringEncoding encoding = CFStringGetSystemEncoding();
mString = CFStringCreateWithPascalString(kCFAllocatorSystemDefault, str, encoding);
ThrowIf(mString == NULL, "Couldn't create the CFString");
}
//---------------------------------------------------------------
//
// MacString::MacString (char*)
//
//---------------------------------------------------------------
MacString::MacString(const char* str)
{
ASSERT(str != NULL);
CFStringEncoding encoding = CFStringGetSystemEncoding();
mString = CFStringCreateWithCString(kCFAllocatorSystemDefault, str, encoding);
ThrowIf(mString == NULL, "Couldn't create the CFString");
}
//---------------------------------------------------------------
//
// MacString::MacString (CFStringRef)
//
//---------------------------------------------------------------
MacString::MacString(CFStringRef str)
{
ASSERT(str != NULL);
mString = str;
CFRetain(mString);
}
//---------------------------------------------------------------
//
// MacString::MacString (CFMutableStringRef)
//
//---------------------------------------------------------------
MacString::MacString(CFMutableStringRef str)
{
ASSERT(str != NULL);
mString = CFStringCreateCopy(kCFAllocatorSystemDefault, str);
ThrowIf(mString == NULL, "Couldn't create the CFString");
}
//---------------------------------------------------------------
//
// MacString::MacString (int)
//
//---------------------------------------------------------------
MacString::MacString(int value)
{
char buffer[32];
sprintf(buffer, "%d", value);
CFStringEncoding encoding = CFStringGetSystemEncoding();
mString = CFStringCreateWithCString(kCFAllocatorSystemDefault, buffer, encoding);
ThrowIf(mString == NULL, "Couldn't create the CFString");
}
//---------------------------------------------------------------
//
// MacString::MacString (MacString)
//
//---------------------------------------------------------------
MacString::MacString(const MacString& str)
{
mString = str.mString; // immutable so we can refcount
CFRetain(mString);
}
//---------------------------------------------------------------
//
// MacString::operator= (MacString)
//
//---------------------------------------------------------------
MacString& MacString::operator=(const MacString& rhs)
{
if (this != &rhs)
{
CFRelease(mString);
mString = rhs.mString; // immutable so we can refcount
CFRetain(mString);
}
return *this;
}
//---------------------------------------------------------------
//
// MacString::length
//
//---------------------------------------------------------------
size_t MacString::length() const
{
size_t len = (size_t) CFStringGetLength(mString);
return len;
}
//---------------------------------------------------------------
//
// MacString::CopyTo
//
//---------------------------------------------------------------
void MacString::CopyTo(unsigned char* buffer, CFIndex bytes)
{
ASSERT(buffer != NULL || bytes == 0);
bool converted = CFStringGetPascalString(mString, buffer, bytes, CFStringGetSystemEncoding());
ThrowIf(!converted, "Couldn't convert the CFString into a Pascal string");
}
#endif // macintosh
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