qglobal.h

QT 开发环境里面一个很重要的文件

#  else
#    define Q_CC_HP
#    define Q_NO_BOOL_TYPE
#    define Q_FULL_TEMPLATE_INSTANTIATION
#    define Q_BROKEN_TEMPLATE_SPECIALIZATION
#    define Q_NO_EXPLICIT_KEYWORD
#  endif
#  define Q_NO_USING_KEYWORD /* ### check "using" status */

#else
#  error "Qt has not been tested with this compiler - talk to [e-mail]"
#endif

#ifndef Q_PACKED
#  define Q_PACKED
#  undef Q_NO_PACKED_REFERENCE
#endif

#ifndef Q_CONSTRUCTOR_FUNCTION
# define Q_CONSTRUCTOR_FUNCTION(AFUNC) \
   static const int AFUNC ## __init_variable__ = AFUNC();
#endif

#ifndef Q_DESTRUCTOR_FUNCTION
# define Q_DESTRUCTOR_FUNCTION(AFUNC) \
    class AFUNC ## __dest_class__ { \
    public: \
       inline AFUNC ## __dest_class__() { } \
       inline ~ AFUNC ## __dest_class__() { AFUNC(); } \
    } AFUNC ## __dest_instance__;
#endif

#ifndef Q_REQUIRED_RESULT
#  if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
#    define Q_REQUIRED_RESULT __attribute__ ((warn_unused_result))
#  else
#    define Q_REQUIRED_RESULT
#  endif
#endif


/*
   The window system, must be one of: (Q_WS_x)

     MACX     - Mac OS X
     MAC9     - Mac OS 9
     QWS      - Qtopia Core
     WIN32    - Windows
     X11      - X Window System
     PM       - unsupported
     WIN16    - unsupported
*/

#if defined(Q_OS_MSDOS)
#  define Q_WS_WIN16
#  error "Qt requires Win32 and does not work with Windows 3.x"
#elif defined(_WIN32_X11_)
#  define Q_WS_X11
#elif defined(Q_OS_WIN32)
#  define Q_WS_WIN32
#  if defined(Q_OS_WIN64)
#    define Q_WS_WIN64
#  endif
#elif defined(Q_OS_OS2)
#  define Q_WS_PM
#  error "Qt does not work with OS/2 Presentation Manager or Workplace Shell"
#elif defined(Q_OS_UNIX)
#  if defined(Q_OS_DARWIN) && !defined(__USE_WS_X11__)
#    define Q_WS_MAC
#    define Q_WS_MACX
#  elif !defined(Q_WS_QWS)
#    define Q_WS_X11
#  endif
#endif

#if defined(Q_WS_WIN16) || defined(Q_WS_WIN32)
#  define Q_WS_WIN
#endif


/*
   Size-dependent types (architechture-dependent byte order)

   Make sure to update QMetaType when changing these typedefs
*/

typedef signed char qint8;         /* 8 bit signed */
typedef unsigned char quint8;      /* 8 bit unsigned */
typedef short qint16;              /* 16 bit signed */
typedef unsigned short quint16;    /* 16 bit unsigned */
typedef int qint32;                /* 32 bit signed */
typedef unsigned int quint32;      /* 32 bit unsigned */
#if defined(Q_OS_WIN) && !defined(Q_CC_GNU)
#  define Q_INT64_C(c) c ## i64    /* signed 64 bit constant */
#  define Q_UINT64_C(c) c ## ui64   /* unsigned 64 bit constant */
typedef __int64 qint64;            /* 64 bit signed */
typedef unsigned __int64 quint64;  /* 64 bit unsigned */
#else
#  define Q_INT64_C(c) static_cast<long long>(c ## LL)     /* signed 64 bit constant */
#  define Q_UINT64_C(c) static_cast<unsigned long long>(c ## ULL) /* unsigned 64 bit constant */
typedef long long qint64;           /* 64 bit signed */
typedef unsigned long long quint64; /* 64 bit unsigned */
#endif

typedef qint64 qlonglong;
typedef quint64 qulonglong;

#if defined(Q_OS_WIN64) || defined(Q_WS_MAC64)
# define QT_POINTER_SIZE 8
#elif defined(Q_OS_WIN32)
# define QT_POINTER_SIZE 4
#endif

#define Q_INIT_RESOURCE(name) \
    do { extern int qInitResources_ ## name ();       \
        qInitResources_ ## name (); } while (0)
#define Q_CLEANUP_RESOURCE(name) \
    do { extern int qCleanupResources_ ## name ();    \
        qCleanupResources_ ## name (); } while (0)

#if defined(__cplusplus)

/*
  quintptr and qptrdiff is guaranteed to be the same size as a pointer, i.e.

      sizeof(void *) == sizeof(quintptr)
      && sizeof(void *) == sizeof(qptrdiff)
*/
template <int> class QUintForSize    { private: typedef void    Type; };
template <>    class QUintForSize<4> { public:  typedef quint32 Type; };
template <>    class QUintForSize<8> { public:  typedef quint64 Type; };
template <typename T> class QUintForType : public QUintForSize<sizeof(T)> { };
typedef QUintForType<void *>::Type quintptr;

template <int> class QIntForSize    { private: typedef void   Type; };
template <>    class QIntForSize<4> { public:  typedef qint32 Type; };
template <>    class QIntForSize<8> { public:  typedef qint64 Type; };
template <typename T> class QIntForType : public QIntForSize<sizeof(T)> { };
typedef QIntForType<void *>::Type qptrdiff;

/*
   Useful type definitions for Qt
*/

typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;

#if defined(Q_NO_BOOL_TYPE)
#error "Compiler doesn't support the bool type"
#endif

/*
   Constant bool values
*/

#ifndef QT_LSB /* the LSB defines TRUE and FALSE for us */
#  ifndef TRUE
#   define TRUE true
#   define FALSE false
#  endif
#endif

#if defined(Q_OS_MAC) && !defined(Q_CC_INTEL)
#define QT_BEGIN_HEADER extern "C++" {
#define QT_END_HEADER }
#else
#define QT_BEGIN_HEADER
#define QT_END_HEADER
#endif

QT_BEGIN_HEADER
/*
   Proper for-scoping in VC++6 and MIPSpro CC
*/
#ifndef QT_NO_KEYWORDS
#  if (defined(Q_CC_MSVC) && !defined(Q_CC_MSVC_NET) && !defined(Q_CC_INTEL)) || defined(Q_CC_MIPS)
#    define for if(0){}else for
#  endif
#endif


/*
   Workaround for static const members on MSVC++.
*/

#if defined(Q_CC_MSVC)
#  define QT_STATIC_CONST static
#  define QT_STATIC_CONST_IMPL
#else
#  define QT_STATIC_CONST static const
#  define QT_STATIC_CONST_IMPL const
#endif

/*
   Warnings and errors when using deprecated methods
*/
#if defined(Q_MOC_RUN)
#  define Q_DECL_DEPRECATED Q_DECL_DEPRECATED
#elif defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && (__GNUC__ - 0 > 3 || (__GNUC__ - 0 == 3 && __GNUC_MINOR__ - 0 >= 2))
#  define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
#elif defined(Q_CC_MSVC) && (_MSC_VER >= 1300)
#  define Q_DECL_DEPRECATED __declspec(deprecated)
#  if defined (Q_CC_INTEL)
#    define Q_DECL_VARIABLE_DEPRECATED
#  else
#  endif
#else
#  define Q_DECL_DEPRECATED
#endif
#ifndef Q_DECL_VARIABLE_DEPRECATED
#  define Q_DECL_VARIABLE_DEPRECATED Q_DECL_DEPRECATED
#endif
#ifndef Q_DECL_CONSTRUCTOR_DEPRECATED
#  if defined(Q_MOC_RUN)
#    define Q_DECL_CONSTRUCTOR_DEPRECATED Q_DECL_CONSTRUCTOR_DEPRECATED
#  elif defined(Q_NO_DEPRECATED_CONSTRUCTORS)
#    define Q_DECL_CONSTRUCTOR_DEPRECATED
#  else
#    define Q_DECL_CONSTRUCTOR_DEPRECATED Q_DECL_DEPRECATED
#  endif
#endif

#if defined(QT_NO_DEPRECATED)
/* disable Qt3 support as well */
#  undef QT3_SUPPORT_WARNINGS
#  undef QT3_SUPPORT
#  undef QT_DEPRECATED
#  undef QT_DEPRECATED_VARIABLE
#  undef QT_DEPRECATED_CONSTRUCTOR
#elif defined(QT_DEPRECATED_WARNINGS)
/* enable Qt3 support warnings as well */
#  undef QT3_SUPPORT_WARNINGS
#  define QT3_SUPPORT_WARNINGS
#  undef QT_DEPRECATED
#  define QT_DEPRECATED Q_DECL_DEPRECATED
#  undef QT_DEPRECATED_VARIABLE
#  define QT_DEPRECATED_VARIABLE Q_DECL_VARIABLE_DEPRECATED
#  undef QT_DEPRECATED_CONSTRUCTOR
#  define QT_DEPRECATED_CONSTRUCTOR explicit Q_DECL_CONSTRUCTOR_DEPRECATED
#else
#  undef QT_DEPRECATED
#  define QT_DEPRECATED
#  undef QT_DEPRECATED_VARIABLE
#  define QT_DEPRECATED_VARIABLE
#  undef QT_DEPRECATED_CONSTRUCTOR
#  define QT_DEPRECATED_CONSTRUCTOR
#endif

#if defined(QT3_SUPPORT_WARNINGS)
#  if !defined(QT_COMPAT_WARNINGS) /* also enable compat */
#    define QT_COMPAT_WARNINGS
#  endif
#  undef QT3_SUPPORT
#  define QT3_SUPPORT Q_DECL_DEPRECATED
#  undef QT3_SUPPORT_VARIABLE
#  define QT3_SUPPORT_VARIABLE Q_DECL_VARIABLE_DEPRECATED
#  undef QT3_SUPPORT_CONSTRUCTOR
#  define QT3_SUPPORT_CONSTRUCTOR explicit Q_DECL_CONSTRUCTOR_DEPRECATED
#elif defined(QT3_SUPPORT) /* define back to nothing */
#  if !defined(QT_COMPAT) /* also enable qt3 support */
#    define QT_COMPAT
#  endif
#  undef QT3_SUPPORT
#  define QT3_SUPPORT
#  undef QT3_SUPPORT_VARIABLE
#  define QT3_SUPPORT_VARIABLE
#  undef QT3_SUPPORT_CONSTRUCTOR
#  define QT3_SUPPORT_CONSTRUCTOR explicit
#endif

/* moc compats (signals/slots) */
#ifndef QT_MOC_COMPAT
#  if defined(QT3_SUPPORT)
#    define QT_MOC_COMPAT QT3_SUPPORT
#  else
#    define QT_MOC_COMPAT
#  endif
#else
#  undef QT_MOC_COMPAT
#  define QT_MOC_COMPAT
#endif

#if 0 /* #ifdef QT_ASCII_CAST_WARNINGS */
#  define QT_ASCII_CAST_WARN Q_DECL_DEPRECATED
#  if defined(Q_CC_GNU) && __GNUC__ < 4
     /* gcc < 4 doesn't like Q_DECL_DEPRECATED in front of constructors */
#    define QT_ASCII_CAST_WARN_CONSTRUCTOR
#  else
#    define QT_ASCII_CAST_WARN_CONSTRUCTOR Q_DECL_CONSTRUCTOR_DEPRECATED
#  endif
#else
#  define QT_ASCII_CAST_WARN
#  define QT_ASCII_CAST_WARN_CONSTRUCTOR
#endif

#ifdef __i386__
#  if defined(Q_CC_GNU)
#if !defined(Q_CC_INTEL) && ((100*(__GNUC__ - 0) + 10*(__GNUC_MINOR__ - 0) + __GNUC_PATCHLEVEL__) >= 332)
#    define QT_FASTCALL __attribute__((regparm(3)))
#else
#    define QT_FASTCALL
#endif
#  elif defined(Q_CC_MSVC)
#    define QT_FASTCALL __fastcall
#  else
#     define QT_FASTCALL
#  endif
#else
#  define QT_FASTCALL
#endif

typedef int QNoImplicitBoolCast;

#if defined(QT_COORD_TYPE)
typedef QT_COORD_TYPE qreal;
#elif defined(__arm__)
typedef float qreal;
#else
typedef double qreal;
#endif

/*
   Utility macros and inline functions
*/

template <typename T>
inline T qAbs(const T &t) { return t >= 0 ? t : -t; }

inline int qRound(qreal d)
{ return d >= 0.0 ? int(d + 0.5) : int(d - int(d-1) + 0.5) + int(d-1); }

inline qint64 qRound64(qreal d)
{ return d >= 0.0 ? qint64(d + 0.5) : qint64(d - qint64(d-1) + 0.5) + qint64(d-1); }

template <typename T>
inline const T &qMin(const T &a, const T &b) { if (a < b) return a; return b; }
template <typename T>
inline const T &qMax(const T &a, const T &b) { if (a < b) return b; return a; }
template <typename T>
inline const T &qBound(const T &min, const T &val, const T &max)
{ return qMax(min, qMin(max, val)); }

#ifdef QT3_SUPPORT
typedef qint8 Q_INT8;
typedef quint8 Q_UINT8;
typedef qint16 Q_INT16;
typedef quint16 Q_UINT16;
typedef qint32 Q_INT32;
typedef quint32 Q_UINT32;
typedef qint64 Q_INT64;
typedef quint64 Q_UINT64;

typedef qint64 Q_LLONG;
typedef quint64 Q_ULLONG;
#if defined(Q_OS_WIN64)
typedef __int64 Q_LONG;             /* word up to 64 bit signed */
typedef unsigned __int64 Q_ULONG;   /* word up to 64 bit unsigned */
#else
typedef long Q_LONG;                /* word up to 64 bit signed */
typedef unsigned long Q_ULONG;      /* word up to 64 bit unsigned */
#endif

#  define QABS(a) qAbs(a)
#  define QMAX(a, b) qMax((a), (b))
#  define QMIN(a, b) qMin((a), (b))
#endif

/*
   Data stream functions are provided by many classes (defined in qdatastream.h)
*/

class QDataStream;

#ifdef Q_OS_DARWIN
#  ifdef MAC_OS_X_VERSION_MIN_REQUIRED
#    undef MAC_OS_X_VERSION_MIN_REQUIRED
#  endif
#  define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_3
#  include <AvailabilityMacros.h>
#  if !defined(MAC_OS_X_VERSION_10_3)
#     define MAC_OS_X_VERSION_10_3 MAC_OS_X_VERSION_10_2 + 1
#  endif
#  if !defined(MAC_OS_X_VERSION_10_4)
#       define MAC_OS_X_VERSION_10_4 MAC_OS_X_VERSION_10_3 + 1
#  endif
#  if !defined(MAC_OS_X_VERSION_10_5)
#       define MAC_OS_X_VERSION_10_5 MAC_OS_X_VERSION_10_4 + 1
#  endif
#  if (MAC_OS_X_VERSION_MAX_ALLOWED == MAC_OS_X_VERSION_10_5)
#       warning "Support for this version of Mac OS X is still preliminary"
#endif
#  if (MAC_OS_X_VERSION_MAX_ALLOWED > MAC_OS_X_VERSION_10_5)
#    error "This version of Mac OS X is unsupported"
#  endif
#endif

#ifndef QT_BUILD_KEY
#define QT_BUILD_KEY "unspecified"
#endif

#if defined(Q_WS_MAC)
#  ifndef QMAC_QMENUBAR_NO_EVENT
#    define QMAC_QMENUBAR_NO_EVENT
#  endif
#endif

#if !defined(Q_WS_QWS) && !defined(QT_NO_COP)
#  define QT_NO_COP
#endif

# include <QtCore/qfeatures.h>

#ifndef Q_DECL_EXPORT
#  ifdef Q_OS_WIN
#    define Q_DECL_EXPORT __declspec(dllexport)
#  elif defined(QT_VISIBILITY_AVAILABLE)
#    define Q_DECL_EXPORT __attribute__((visibility("default")))
#  endif
#  ifndef Q_DECL_EXPORT
#    define Q_DECL_EXPORT
#  endif
#endif
#ifndef Q_DECL_IMPORT
#  ifdef Q_OS_WIN
#    define Q_DECL_IMPORT __declspec(dllimport)
#  else
#    define Q_DECL_IMPORT
#  endif
#endif

/*
   Create Qt DLL if QT_DLL is defined (Windows only)
*/

#if defined(Q_OS_WIN)
#  if defined(QT_NODLL)
#    undef QT_MAKEDLL
#    undef QT_DLL
#  elif defined(QT_MAKEDLL)        /* create a Qt DLL library */
#    if defined(QT_DLL)
#      undef QT_DLL
#    endif
#    if defined(QT_BUILD_CORE_LIB)
#      define Q_CORE_EXPORT Q_DECL_EXPORT
#    else
#      define Q_CORE_EXPORT Q_DECL_IMPORT
#    endif
#    if defined(QT_BUILD_GUI_LIB)
#      define Q_GUI_EXPORT Q_DECL_EXPORT
#    else
#      define Q_GUI_EXPORT Q_DECL_IMPORT
#    endif
#    if defined(QT_BUILD_SQL_LIB)
#      define Q_SQL_EXPORT Q_DECL_EXPORT
#    else
#      define Q_SQL_EXPORT Q_DECL_IMPORT
#    endif
#    if defined(QT_BUILD_NETWORK_LIB)
#      define Q_NETWORK_EXPORT Q_DECL_EXPORT
#    else
#      define Q_NETWORK_EXPORT Q_DECL_IMPORT
#    endif
#    if defined(QT_BUILD_SVG_LIB)
#      define Q_SVG_EXPORT Q_DECL_EXPORT
#    else
#      define Q_SVG_EXPORT Q_DECL_IMPORT
#    endif
#    if defined(QT_BUILD_OPENGL_LIB)
#      define Q_OPENGL_EXPORT Q_DECL_EXPORT
#    else
#      define Q_OPENGL_EXPORT Q_DECL_IMPORT
#    endif
#    if defined(QT_BUILD_XML_LIB)
#      define Q_XML_EXPORT Q_DECL_EXPORT
#    else