summaryrefslogtreecommitdiffstats
path: root/src/tools/qglobal.cpp
diff options
context:
space:
mode:
authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
commitd796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch)
tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /src/tools/qglobal.cpp
downloadtqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz
tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'src/tools/qglobal.cpp')
-rw-r--r--src/tools/qglobal.cpp927
1 files changed, 927 insertions, 0 deletions
diff --git a/src/tools/qglobal.cpp b/src/tools/qglobal.cpp
new file mode 100644
index 000000000..4bb43db69
--- /dev/null
+++ b/src/tools/qglobal.cpp
@@ -0,0 +1,927 @@
+/****************************************************************************
+**
+** Global functions
+**
+** Created : 920604
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the tools module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing retquirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file. Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "qplatformdefs.h"
+
+#include "qasciidict.h"
+#include <limits.h>
+#include <stdio.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+#if defined(Q_CC_MSVC) && !defined(Q_CC_MSVC_NET) && !defined(Q_OS_TEMP)
+#include <crtdbg.h>
+#endif
+
+
+/*!
+ \relates TQApplication
+
+ Returns the TQt version number as a string, for example, "2.3.0" or
+ "3.0.5".
+
+ The \c QT_VERSION define has the numeric value in the form:
+ 0xmmiibb (m = major, i = minor, b = bugfix). For example, TQt
+ 3.0.5's \c QT_VERSION is 0x030005.
+*/
+
+const char *qVersion()
+{
+ return QT_VERSION_STR;
+}
+
+bool qSharedBuild()
+{
+#ifdef QT_SHARED
+ return TRUE;
+#else
+ return FALSE;
+#endif
+}
+
+/*****************************************************************************
+ System detection routines
+ *****************************************************************************/
+
+static bool si_alreadyDone = FALSE;
+static int si_wordSize;
+static bool si_bigEndian;
+
+/*!
+ \relates TQApplication
+
+ Obtains information about the system.
+
+ The system's word size in bits (typically 32) is returned in \a
+ *wordSize. The \a *bigEndian is set to TRUE if this is a big-endian
+ machine, or to FALSE if this is a little-endian machine.
+
+ In debug mode, this function calls qFatal() with a message if the
+ computer is truly weird (i.e. different endianness for 16 bit and
+ 32 bit integers); in release mode it returns FALSE.
+*/
+
+bool qSysInfo( int *wordSize, bool *bigEndian )
+{
+#if defined(QT_CHECK_NULL)
+ Q_ASSERT( wordSize != 0 );
+ Q_ASSERT( bigEndian != 0 );
+#endif
+
+ if ( si_alreadyDone ) { // run it only once
+ *wordSize = si_wordSize;
+ *bigEndian = si_bigEndian;
+ return TRUE;
+ }
+
+ si_wordSize = 0;
+ Q_ULONG n = (Q_ULONG)(~0);
+ while ( n ) { // detect word size
+ si_wordSize++;
+ n /= 2;
+ }
+ *wordSize = si_wordSize;
+
+ if ( *wordSize != 64 &&
+ *wordSize != 32 &&
+ *wordSize != 16 ) { // word size: 16, 32 or 64
+#if defined(QT_CHECK_RANGE)
+ qFatal( "qSysInfo: Unsupported system word size %d", *wordSize );
+#endif
+ return FALSE;
+ }
+ if ( sizeof(Q_INT8) != 1 || sizeof(Q_INT16) != 2 || sizeof(Q_INT32) != 4 ||
+ sizeof(Q_ULONG)*8 != si_wordSize || sizeof(float) != 4 || sizeof(double) != 8 ) {
+#if defined(QT_CHECK_RANGE)
+ qFatal( "qSysInfo: Unsupported system data type size" );
+#endif
+ return FALSE;
+ }
+
+ bool be16, be32; // determine byte ordering
+ short ns = 0x1234;
+ int nl = 0x12345678;
+
+ unsigned char *p = (unsigned char *)(&ns); // 16-bit integer
+ be16 = *p == 0x12;
+
+ p = (unsigned char *)(&nl); // 32-bit integer
+ if ( p[0] == 0x12 && p[1] == 0x34 && p[2] == 0x56 && p[3] == 0x78 )
+ be32 = TRUE;
+ else
+ if ( p[0] == 0x78 && p[1] == 0x56 && p[2] == 0x34 && p[3] == 0x12 )
+ be32 = FALSE;
+ else
+ be32 = !be16;
+
+ if ( be16 != be32 ) { // strange machine!
+#if defined(QT_CHECK_RANGE)
+ qFatal( "qSysInfo: Inconsistent system byte order" );
+#endif
+ return FALSE;
+ }
+
+ *bigEndian = si_bigEndian = be32;
+ si_alreadyDone = TRUE;
+ return TRUE;
+}
+
+#if !defined(TQWS) && defined(Q_OS_MAC)
+
+#include "qt_mac.h"
+
+// This function has descended from Apple Source Code (FSpLocationFromFullPath),
+// but changes have been made. [Creates a minimal alias from the full pathname]
+OSErr qt_mac_create_fsspec(const TQString &file, FSSpec *spec)
+{
+ FSRef fref;
+ TQCString utfs = file.utf8();
+ OSErr ret = FSPathMakeRef((const UInt8 *)utfs.data(), &fref, NULL);
+ if(ret == noErr)
+ ret = FSGetCatalogInfo(&fref, kFSCatInfoNone, NULL, NULL, spec, NULL);
+ return ret;
+}
+
+CFStringRef qstring2cfstring(const TQString &str)
+{
+ return CFStringCreateWithCharacters(0, (UniChar *)str.unicode(), str.length());
+}
+
+TQString cfstring2qstring(CFStringRef str)
+{
+ if(!str)
+ return TQString();
+
+ CFIndex length = CFStringGetLength(str);
+ if(const UniChar *chars = CFStringGetCharactersPtr(str))
+ return TQString((TQChar *)chars, length);
+ UniChar *buffer = (UniChar*)malloc(length * sizeof(UniChar));
+ CFStringGetCharacters(str, CFRangeMake(0, length), buffer);
+ TQString ret((TQChar *)buffer, length);
+ free(buffer);
+ return ret;
+}
+
+unsigned char *p_str(const TQString &s)
+{
+ CFStringRef cfstr = qstring2cfstring(s);
+ uchar *p = (uchar*)malloc(256);
+ CFStringGetPascalString(cfstr, p, 256, CFStringGetSystemEncoding());
+ CFRelease(cfstr);
+ return p;
+}
+
+TQString p2qstring(const unsigned char *c) {
+ CFStringRef cfstr = CFStringCreateWithPascalString(0, c, CFStringGetSystemEncoding());
+ TQString str = cfstring2qstring(cfstr);
+ CFRelease(cfstr);
+ return str;
+}
+
+int qMacVersion()
+{
+ static int macver = TQt::MV_Unknown;
+ static bool first = TRUE;
+ if(first) {
+ first = FALSE;
+ long gestalt_version;
+ if(Gestalt(gestaltSystemVersion, &gestalt_version) == noErr) {
+ macver = ((gestalt_version & 0x00f0) >> 4) + 2;
+
+ }
+ }
+ return macver;
+}
+TQt::MacintoshVersion qt_macver = (TQt::MacintoshVersion)qMacVersion();
+
+// HFS+ filesystems use decomposing unicode for certain layers in unicode
+// In general these don't look great as a user visible string.
+// Therefore it is a good idea to normalize them ourselves.
+// These technotes on Apple's website:
+// http://developer.apple.com/qa/qa2001/qa1235.html
+// http://developer.apple.com/qa/qa2001/qa1173.html
+TQString qt_mac_precomposeFileName(const TQString &str)
+{
+ if (str.isEmpty())
+ return str;
+ int strLength = str.length();
+ CFMutableStringRef cfmstr = CFStringCreateMutable(0, strLength);
+ CFStringAppendCharacters(cfmstr, (UniChar *)str.unicode(), strLength);
+ CFStringNormalize(cfmstr, kCFStringNormalizationFormC);
+ TQString newStr = cfstring2qstring(cfmstr);
+ CFRelease(cfmstr);
+ return newStr;
+}
+#elif defined(Q_OS_WIN32) || defined(Q_OS_CYGWIN) || defined(Q_OS_TEMP)
+bool qt_winunicode;
+# ifdef Q_OS_TEMP
+ DWORD qt_cever = 0;
+# endif // Q_OS_TEMP
+
+#include "qt_windows.h"
+
+int qWinVersion()
+{
+#ifndef VER_PLATFORM_WIN32s
+#define VER_PLATFORM_WIN32s 0
+#endif
+#ifndef VER_PLATFORM_WIN32_WINDOWS
+#define VER_PLATFORM_WIN32_WINDOWS 1
+#endif
+#ifndef VER_PLATFORM_WIN32_NT
+#define VER_PLATFORM_WIN32_NT 2
+#endif
+#ifndef VER_PLATFORM_WIN32_CE
+#define VER_PLATFORM_WIN32_CE 3
+#endif
+
+ static int winver = TQt::WV_NT;
+ static int t=0;
+ if ( !t ) {
+ t=1;
+#ifndef Q_OS_TEMP
+ OSVERSIONINFOA osver;
+ osver.dwOSVersionInfoSize = sizeof(osver);
+ GetVersionExA( &osver );
+#else
+ OSVERSIONINFOW osver;
+ osver.dwOSVersionInfoSize = sizeof(osver);
+ GetVersionEx( &osver );
+ qt_cever = osver.dwMajorVersion * 100;
+ qt_cever += osver.dwMinorVersion * 10;
+#endif
+ switch ( osver.dwPlatformId ) {
+ case VER_PLATFORM_WIN32s:
+ winver = TQt::WV_32s;
+ break;
+ case VER_PLATFORM_WIN32_WINDOWS:
+ // We treat Windows Me (minor 90) the same as Windows 98
+ if ( osver.dwMinorVersion == 90 )
+ winver = TQt::WV_Me;
+ else if ( osver.dwMinorVersion == 10 )
+ winver = TQt::WV_98;
+ else
+ winver = TQt::WV_95;
+ break;
+ case VER_PLATFORM_WIN32_CE:
+#ifdef Q_OS_TEMP
+ if ( qt_cever >= 400 )
+ winver = TQt::WV_CENET;
+ else
+#endif
+ winver = TQt::WV_CE;
+ break;
+ default: // VER_PLATFORM_WIN32_NT
+ if ( osver.dwMajorVersion < 5 ) {
+ winver = TQt::WV_NT;
+ } else if (osver.dwMajorVersion == 6) {
+ winver = TQt::WV_VISTA;
+ } else if ( osver.dwMinorVersion == 0 ) {
+ winver = TQt::WV_2000;
+ } else if ( osver.dwMinorVersion == 1 ) {
+ winver = TQt::WV_XP;
+ } else if ( osver.dwMinorVersion == 2 ) {
+ winver = TQt::WV_2003;
+ } else {
+ qWarning("Untested Windows version detected!");
+ winver = TQt::WV_NT_based;
+ }
+ }
+ }
+
+#if defined(UNICODE)
+ if ( winver & TQt::WV_NT_based )
+ qt_winunicode = TRUE;
+ else
+#endif
+ qt_winunicode = FALSE;
+
+ return winver;
+}
+
+TQt::WindowsVersion qt_winver = (TQt::WindowsVersion)qWinVersion();
+#endif
+
+
+/*****************************************************************************
+ Debug output routines
+ *****************************************************************************/
+
+/*!
+ \fn void qDebug( const char *msg, ... )
+
+ \relates TQApplication
+
+ Prints a debug message \a msg, or calls the message handler (if it
+ has been installed).
+
+ This function takes a format string and a list of arguments,
+ similar to the C printf() function.
+
+ Example:
+ \code
+ qDebug( "my window handle = %x", myWidget->id() );
+ \endcode
+
+ Under X11, the text is printed to stderr. Under Windows, the text
+ is sent to the debugger.
+
+ \warning The internal buffer is limited to 8196 bytes (including
+ the '\0'-terminator).
+
+ \warning Passing (const char *)0 as argument to qDebug might lead
+ to crashes on certain platforms due to the platforms printf implementation.
+
+ \sa qWarning(), qFatal(), qInstallMsgHandler(),
+ \link debug.html Debugging\endlink
+*/
+
+/*!
+ \fn void qWarning( const char *msg, ... )
+
+ \relates TQApplication
+
+ Prints a warning message \a msg, or calls the message handler (if
+ it has been installed).
+
+ This function takes a format string and a list of arguments,
+ similar to the C printf() function.
+
+ Example:
+ \code
+ void f( int c )
+ {
+ if ( c > 200 )
+ qWarning( "f: bad argument, c == %d", c );
+ }
+ \endcode
+
+ Under X11, the text is printed to stderr. Under Windows, the text
+ is sent to the debugger.
+
+ \warning The internal buffer is limited to 8196 bytes (including
+ the '\0'-terminator).
+
+ \warning Passing (const char *)0 as argument to qWarning might lead
+ to crashes on certain platforms due to the platforms printf implementation.
+
+ \sa qDebug(), qFatal(), qInstallMsgHandler(),
+ \link debug.html Debugging\endlink
+*/
+
+/*!
+ \fn void qFatal( const char *msg, ... )
+
+ \relates TQApplication
+
+ Prints a fatal error message \a msg and exits, or calls the
+ message handler (if it has been installed).
+
+ This function takes a format string and a list of arguments,
+ similar to the C printf() function.
+
+ Example:
+ \code
+ int divide( int a, int b )
+ {
+ if ( b == 0 ) // program error
+ qFatal( "divide: cannot divide by zero" );
+ return a/b;
+ }
+ \endcode
+
+ Under X11, the text is printed to stderr. Under Windows, the text
+ is sent to the debugger.
+
+ \warning The internal buffer is limited to 8196 bytes (including
+ the '\0'-terminator).
+
+ \warning Passing (const char *)0 as argument to qFatal might lead
+ to crashes on certain platforms due to the platforms printf implementation.
+
+ \sa qDebug(), qWarning(), qInstallMsgHandler(),
+ \link debug.html Debugging\endlink
+*/
+
+
+static TQtMsgHandler handler = 0; // pointer to debug handler
+static const int QT_BUFFER_LENGTH = 8196; // internal buffer length
+
+
+#ifdef Q_CC_MWERKS
+
+#include "qt_mac.h"
+
+extern bool qt_is_gui_used;
+static void mac_default_handler( const char *msg )
+{
+ if ( qt_is_gui_used ) {
+ const unsigned char *p = p_str(msg);
+ DebugStr(p);
+ free((void*)p);
+ } else {
+ fprintf( stderr, msg );
+ }
+}
+
+#endif
+
+
+void qDebug( const char *msg, ... )
+{
+ char buf[QT_BUFFER_LENGTH];
+ va_list ap;
+ va_start( ap, msg ); // use variable arg list
+#if defined(QT_VSNPRINTF)
+ QT_VSNPRINTF( buf, QT_BUFFER_LENGTH, msg, ap );
+#else
+ vsprintf( buf, msg, ap );
+#endif
+ va_end( ap );
+ if ( handler ) {
+ (*handler)( TQtDebugMsg, buf );
+ } else {
+#if defined(Q_CC_MWERKS)
+ mac_default_handler(buf);
+#elif defined(Q_OS_TEMP)
+ TQString fstr( buf );
+ OutputDebugString( (fstr + "\n").ucs2() );
+#else
+ fprintf( stderr, "%s\n", buf ); // add newline
+#endif
+ }
+}
+
+// copied... this looks really bad.
+void debug( const char *msg, ... )
+{
+ char buf[QT_BUFFER_LENGTH];
+ va_list ap;
+ va_start( ap, msg ); // use variable arg list
+#if defined(QT_VSNPRINTF)
+ QT_VSNPRINTF( buf, QT_BUFFER_LENGTH, msg, ap );
+#else
+ vsprintf( buf, msg, ap );
+#endif
+ va_end( ap );
+ if ( handler ) {
+ (*handler)( TQtDebugMsg, buf );
+ } else {
+#if defined(Q_CC_MWERKS)
+ mac_default_handler(buf);
+#elif defined(Q_OS_TEMP)
+ TQString fstr( buf );
+ OutputDebugString( (fstr + "\n").ucs2() );
+#else
+ fprintf( stderr, "%s\n", buf ); // add newline
+#endif
+ }
+}
+
+void qWarning( const char *msg, ... )
+{
+ char buf[QT_BUFFER_LENGTH];
+ va_list ap;
+ va_start( ap, msg ); // use variable arg list
+#if defined(QT_VSNPRINTF)
+ QT_VSNPRINTF( buf, QT_BUFFER_LENGTH, msg, ap );
+#else
+ vsprintf( buf, msg, ap );
+#endif
+ va_end( ap );
+ if ( handler ) {
+ (*handler)( TQtWarningMsg, buf );
+ } else {
+#if defined(Q_CC_MWERKS)
+ mac_default_handler(buf);
+#elif defined(Q_OS_TEMP)
+ TQString fstr( buf );
+ OutputDebugString( (fstr + "\n").ucs2() );
+#else
+ fprintf( stderr, "%s\n", buf ); // add newline
+#endif
+ }
+}
+
+
+// again, copied
+void warning( const char *msg, ... )
+{
+ char buf[QT_BUFFER_LENGTH];
+ va_list ap;
+ va_start( ap, msg ); // use variable arg list
+#if defined(QT_VSNPRINTF)
+ QT_VSNPRINTF( buf, QT_BUFFER_LENGTH, msg, ap );
+#else
+ vsprintf( buf, msg, ap );
+#endif
+ va_end( ap );
+ if ( handler ) {
+ (*handler)( TQtWarningMsg, buf );
+ } else {
+#if defined(Q_CC_MWERKS)
+ mac_default_handler(buf);
+#elif defined(Q_OS_TEMP)
+ TQString fstr( buf );
+ OutputDebugString( (fstr + "\n").ucs2() );
+#else
+ fprintf( stderr, "%s\n", buf ); // add newline
+#endif
+ }
+}
+
+void qFatal( const char *msg, ... )
+{
+ char buf[QT_BUFFER_LENGTH];
+ va_list ap;
+ va_start( ap, msg ); // use variable arg list
+#if defined(QT_VSNPRINTF)
+ QT_VSNPRINTF( buf, QT_BUFFER_LENGTH, msg, ap );
+#else
+ vsprintf( buf, msg, ap );
+#endif
+ va_end( ap );
+ if ( handler ) {
+ (*handler)( TQtFatalMsg, buf );
+ } else {
+#if defined(Q_CC_MWERKS)
+ mac_default_handler(buf);
+#else
+ fprintf( stderr, "%s\n", buf ); // add newline
+#endif
+#if defined(Q_OS_UNIX) && defined(QT_DEBUG)
+ abort(); // trap; generates core dump
+#elif defined(Q_OS_TEMP) && defined(QT_DEBUG)
+ TQString fstr;
+ fstr.sprintf( "%s:%s %s %s\n", __FILE__, __LINE__, QT_VERSION_STR, buf );
+ OutputDebugString( fstr.ucs2() );
+#elif defined(_CRT_ERROR) && defined(_DEBUG)
+ _CrtDbgReport( _CRT_ERROR, __FILE__, __LINE__, QT_VERSION_STR, buf );
+#else
+ exit( 1 ); // goodbye cruel world
+#endif
+ }
+}
+
+// yet again, copied
+void fatal( const char *msg, ... )
+{
+ char buf[QT_BUFFER_LENGTH];
+ va_list ap;
+ va_start( ap, msg ); // use variable arg list
+#if defined(QT_VSNPRINTF)
+ QT_VSNPRINTF( buf, QT_BUFFER_LENGTH, msg, ap );
+#else
+ vsprintf( buf, msg, ap );
+#endif
+ va_end( ap );
+ if ( handler ) {
+ (*handler)( TQtFatalMsg, buf );
+ } else {
+#if defined(Q_CC_MWERKS)
+ mac_default_handler(buf);
+#else
+ fprintf( stderr, "%s\n", buf ); // add newline
+#endif
+#if defined(Q_OS_UNIX) && defined(QT_DEBUG)
+ abort(); // trap; generates core dump
+#elif defined(Q_OS_TEMP) && defined(QT_DEBUG)
+ TQString fstr;
+ fstr.sprintf( "%s:%s %s %s\n", __FILE__, __LINE__, QT_VERSION_STR, buf );
+ OutputDebugString( fstr.ucs2() );
+#elif defined(_CRT_ERROR) && defined(_DEBUG)
+ _CrtDbgReport( _CRT_ERROR, __FILE__, __LINE__, QT_VERSION_STR, buf );
+#else
+ exit( 1 ); // goodbye cruel world
+#endif
+ }
+}
+
+/*!
+ \relates TQApplication
+
+ Prints the message \a msg and uses \a code to get a system specific
+ error message. When \a code is -1 (the default), the system's last
+ error code will be used if possible. Use this method to handle
+ failures in platform specific API calls.
+
+ This function does nothing when TQt is built with \c QT_NO_DEBUG
+ defined.
+*/
+void qSystemWarning( const char* msg, int code )
+{
+#ifndef QT_NO_DEBUG
+#if defined(Q_OS_WIN32)
+ if ( code == -1 )
+ code = GetLastError();
+
+ if ( !code )
+ return;
+
+ unsigned short *string;
+ QT_WA( {
+ FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
+ NULL,
+ code,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ (LPTSTR)&string,
+ 0,
+ NULL );
+
+ qWarning( "%s\n\tError code %d - %s", msg, code, TQString::fromUcs2(string).latin1() );
+ }, {
+ FormatMessageA( FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
+ NULL,
+ code,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ (char*)&string,
+ 0,
+ NULL );
+
+ qWarning( "%s\n\tError code %d - %s", msg, code, (const char*)string );
+ } );
+ LocalFree( (HLOCAL)string );
+#else
+ if ( code != -1 )
+ qWarning( "%s\n\tError code %d - %s", msg, code, strerror( code ) );
+ else
+ qWarning( "%s", msg );
+#endif
+#else
+ Q_UNUSED( msg );
+ Q_UNUSED( code );
+#endif
+}
+
+/*!
+ \fn void Q_ASSERT( bool test )
+
+ \relates TQApplication
+
+ Prints a warning message containing the source code file name and
+ line number if \a test is FALSE.
+
+ This is really a macro defined in \c qglobal.h.
+
+ Q_ASSERT is useful for testing pre- and post-conditions.
+
+ Example:
+ \code
+ //
+ // File: div.cpp
+ //
+
+ #include <qglobal.h>
+
+ int divide( int a, int b )
+ {
+ Q_ASSERT( b != 0 ); // this is line 9
+ return a/b;
+ }
+ \endcode
+
+ If \c b is zero, the Q_ASSERT statement will output the following
+ message using the qWarning() function:
+ \code
+ ASSERT: "b != 0" in div.cpp (9)
+ \endcode
+
+ \sa qWarning(), \link debug.html Debugging\endlink
+*/
+
+
+/*!
+ \fn void Q_CHECK_PTR( void *p )
+
+ \relates TQApplication
+
+ If \a p is 0, prints a warning message containing the source code file
+ name and line number, saying that the program ran out of memory.
+
+ This is really a macro defined in \c qglobal.h.
+
+ Example:
+ \code
+ int *a;
+
+ Q_CHECK_PTR( a = new int[80] ); // WRONG!
+
+ a = new (nothrow) int[80]; // Right
+ Q_CHECK_PTR( a );
+ \endcode
+
+ \sa qWarning(), \link debug.html Debugging\endlink
+*/
+
+
+//
+// The Q_CHECK_PTR macro calls this function to check if an allocation went ok.
+//
+#if (QT_VERSION-0 >= 0x040000)
+#if defined(Q_CC_GNU)
+#warning "Change Q_CHECK_PTR to '{if ((p)==0) qt_check_pointer(__FILE__,__LINE__);}'"
+#warning "No need for qt_check_pointer() to return a value - make it void!"
+#endif
+#endif
+bool qt_check_pointer( bool c, const char *n, int l )
+{
+ if ( c )
+ qWarning( "In file %s, line %d: Out of memory", n, l );
+ return TRUE;
+}
+
+
+static bool firstObsoleteWarning(const char *obj, const char *oldfunc )
+{
+ static TQAsciiDict<int> *obsoleteDict = 0;
+ if ( !obsoleteDict ) { // first time func is called
+ obsoleteDict = new TQAsciiDict<int>;
+#if defined(QT_DEBUG)
+ qDebug(
+ "You are using obsolete functions in the TQt library. Call the function\n"
+ "qSuppressObsoleteWarnings() to suppress obsolete warnings.\n"
+ );
+#endif
+ }
+ TQCString s( obj );
+ s += "::";
+ s += oldfunc;
+ if ( obsoleteDict->find(s.data()) == 0 ) {
+ obsoleteDict->insert( s.data(), (int*)1 ); // anything different from 0
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static bool suppressObsolete = FALSE;
+
+void qSuppressObsoleteWarnings( bool suppress )
+{
+ suppressObsolete = suppress;
+}
+
+void qObsolete( const char *obj, const char *oldfunc, const char *newfunc )
+{
+ if ( suppressObsolete )
+ return;
+ if ( !firstObsoleteWarning(obj, oldfunc) )
+ return;
+ if ( obj )
+ qDebug( "%s::%s: This function is obsolete, use %s instead.",
+ obj, oldfunc, newfunc );
+ else
+ qDebug( "%s: This function is obsolete, use %s instead.",
+ oldfunc, newfunc );
+}
+
+void qObsolete( const char *obj, const char *oldfunc )
+{
+ if ( suppressObsolete )
+ return;
+ if ( !firstObsoleteWarning(obj, oldfunc) )
+ return;
+ if ( obj )
+ qDebug( "%s::%s: This function is obsolete.", obj, oldfunc );
+ else
+ qDebug( "%s: This function is obsolete.", oldfunc );
+}
+
+void qObsolete( const char *message )
+{
+ if ( suppressObsolete )
+ return;
+ if ( !firstObsoleteWarning( "TQt", message) )
+ return;
+ qDebug( "%s", message );
+}
+
+
+/*!
+ \relates TQApplication
+
+ Installs a TQt message handler \a h. Returns a pointer to the
+ message handler previously defined.
+
+ The message handler is a function that prints out debug messages,
+ warnings and fatal error messages. The TQt library (debug version)
+ contains hundreds of warning messages that are printed when
+ internal errors (usually invalid function arguments) occur. If you
+ implement your own message handler, you get total control of these
+ messages.
+
+ The default message handler prints the message to the standard
+ output under X11 or to the debugger under Windows. If it is a
+ fatal message, the application aborts immediately.
+
+ Only one message handler can be defined, since this is usually
+ done on an application-wide basis to control debug output.
+
+ To restore the message handler, call \c qInstallMsgHandler(0).
+
+ Example:
+ \code
+ #include <qapplication.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+
+ void myMessageOutput( TQtMsgType type, const char *msg )
+ {
+ switch ( type ) {
+ case TQtDebugMsg:
+ fprintf( stderr, "Debug: %s\n", msg );
+ break;
+ case TQtWarningMsg:
+ fprintf( stderr, "Warning: %s\n", msg );
+ break;
+ case TQtFatalMsg:
+ fprintf( stderr, "Fatal: %s\n", msg );
+ abort(); // deliberately core dump
+ }
+ }
+
+ int main( int argc, char **argv )
+ {
+ qInstallMsgHandler( myMessageOutput );
+ TQApplication a( argc, argv );
+ ...
+ return a.exec();
+ }
+ \endcode
+
+ \sa qDebug(), qWarning(), qFatal(), \link debug.html Debugging\endlink
+*/
+
+TQtMsgHandler qInstallMsgHandler( TQtMsgHandler h )
+{
+ TQtMsgHandler old = handler;
+ handler = h;
+ return old;
+}
+
+
+/*
+ Dijkstra's bisection algorithm to find the square root as an integer.
+ Deliberately not exported as part of the TQt API, but used in both
+ qsimplerichtext.cpp and qgfxraster_qws.cpp
+*/
+unsigned int qt_int_sqrt( unsigned int n )
+{
+ // n must be in the range 0...UINT_MAX/2-1
+ if ( n >= ( UINT_MAX>>2 ) ) {
+ unsigned int r = 2 * qt_int_sqrt( n / 4 );
+ unsigned int r2 = r + 1;
+ return ( n >= r2 * r2 ) ? r2 : r;
+ }
+ uint h, p= 0, q= 1, r= n;
+ while ( q <= n )
+ q <<= 2;
+ while ( q != 1 ) {
+ q >>= 2;
+ h= p + q;
+ p >>= 1;
+ if ( r >= h ) {
+ p += q;
+ r -= h;
+ }
+ }
+ return p;
+}
+