VBoxCocoaHelper.h revision de9f29b93fcf5cb59ca46dec3cd5b4f543fcb493
/** @file
*
* VBox frontends: Qt GUI ("VirtualBox"):
* VBoxCocoa Helper
*/
/*
* Copyright (C) 2009 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#ifndef ___darwin_VBoxCocoaHelper_h
#define ___darwin_VBoxCocoaHelper_h
/* Macro which add a typedef of the given Cocoa class in an appropriate form
* for the current context. This means void* in the C/CPP context and
* NSWhatever* in the ObjC/ObjCPP context. Use NativeNSWhateverRef when you
* reference the Cocoa type somewhere. The use of this prevents extensive
* casting of void* to the right type in the Cocoa context. */
#ifdef __OBJC__
#define ADD_COCOA_NATIVE_REF(CocoaClass) \
@class CocoaClass; \
typedef CocoaClass *Native##CocoaClass##Ref
#else /* __OBJC__ */
#define ADD_COCOA_NATIVE_REF(CocoaClass) typedef void *Native##CocoaClass##Ref
#endif /* __OBJC__ */
#ifdef __OBJC__
/* System includes */
#import <Appkit/NSImage.h>
#import <Foundation/NSAutoreleasePool.h>
#import <CoreFoundation/CFString.h>
/* Qt includes */
#include <QString>
#include <QVarLengthArray>
inline NSString *darwinQStringToNSString (const QString &aString)
{
return [reinterpret_cast<const NSString *>(CFStringCreateWithCharacters (0, reinterpret_cast<const UniChar *> (aString.unicode()),
aString.length())) autorelease];
}
inline QString darwinNSStringToQString (const NSString *aString)
{
CFStringRef str = reinterpret_cast<const CFStringRef> (aString);
if(!str)
return QString();
CFIndex length = CFStringGetLength (str);
const UniChar *chars = CFStringGetCharactersPtr (str);
if (chars)
return QString (reinterpret_cast<const QChar *> (chars), length);
QVarLengthArray<UniChar> buffer (length);
CFStringGetCharacters (str, CFRangeMake (0, length), buffer.data());
return QString (reinterpret_cast<const QChar *> (buffer.constData()), length);
}
inline NSImage *darwinCGImageToNSImage (const CGImageRef aImage)
{
/* Create a bitmap rep from the image. */
NSBitmapImageRep *bitmapRep = [[NSBitmapImageRep alloc] initWithCGImage:aImage];
/* Create an NSImage and add the bitmap rep to it */
NSImage *image = [[NSImage alloc] init];
[image addRepresentation:bitmapRep];
[bitmapRep release];
return image;
}
/* Helper class for automatic creation & destroying of a cocoa auto release
pool. */
class CocoaAutoreleasePool
{
public:
inline CocoaAutoreleasePool()
{
mPool = [[NSAutoreleasePool alloc] init];
}
inline ~CocoaAutoreleasePool()
{
[mPool release];
}
private:
NSAutoreleasePool *mPool;
};
#endif /* __OBJC__ */
#endif /* ___darwin_VBoxCocoaHelper_h */