Added TQt4 HEAD

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diff --git a/tqtinterface/qt4/src/tools/tqgarray.cpp b/tqtinterface/qt4/src/tools/tqgarray.cpp
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+++ b/tqtinterface/qt4/src/tools/tqgarray.cpp
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+/****************************************************************************
+**
+** Implementation of TQGArray class
+**
+** Created : 930906
+**
+** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
+**
+** 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 requirements 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 "tqglobal.h"
+#if defined(TQ_CC_BOR)
+    // needed for qsort() because of a std namespace problem on Borland
+#   include "tqplatformdefs.h"
+#elif defined(TQ_WS_WIN)
+    // needed for bsearch on some platforms
+#   include "tqt_windows.h"
+#endif
+
+#define	 TQGARRAY_CPP
+#include "tqgarray.h"
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef TQT_THREAD_SUPPORT
+#  include <private/tqmutexpool_p.h>
+#endif // TQT_THREAD_SUPPORT
+
+/*
+  If USE_MALLOC isn't defined, we use new[] and delete[] to allocate
+  memory. The documentation for TQMemArray<T>::assign() explicitly
+  mentions that the array is freed using free(), so don't mess around
+  with USE_MALLOC unless you know what you're doing.
+*/
+#define USE_MALLOC
+
+#undef NEW
+#undef DELETE
+
+#if defined(USE_MALLOC)
+#define NEW(type,size)	((type*)malloc(size*sizeof(type)))
+#define DELETE(array)	(free((char*)array))
+#else
+#define NEW(type,size)	(new type[size])
+#define DELETE(array)	(delete[] array)
+#define DONT_USE_REALLOC			// comment to use realloc()
+#endif
+
+/*!
+  \class TQShared tqshared.h
+  \reentrant
+  \ingroup shared
+  \brief The TQShared class is used internally for implementing shared classes.
+
+  \internal
+
+  It only tqcontains a reference count and member functions to increment and
+  decrement it.
+
+  Shared classes normally have internal classes that inherit TQShared and
+  add the shared data.
+
+  \sa \link shclass.html Shared Classes\endlink
+*/
+
+/*!
+  \class TQGArray tqgarray.h
+  \reentrant
+  \ingroup shared
+  \ingroup collection
+  \brief The TQGArray class is an internal class for implementing the TQMemArray class.
+
+  \internal
+
+  TQGArray is a strictly internal class that acts as base class for the
+  TQMemArray template array.
+
+  It tqcontains an array of bytes and has no notion of an array element.
+*/
+
+
+/*!
+  Constructs a null array.
+*/
+
+TQGArray::TQGArray()
+{
+    shd = newData();
+    TQ_CHECK_PTR( shd );
+}
+
+/*!
+  Dummy constructor; does not allocate any data.
+
+  This constructor does not initialize any array data so subclasses
+  must do it. The intention is to make the code more efficient.
+*/
+
+TQGArray::TQGArray( int, int )
+{
+}
+
+/*!
+  Constructs an array with room for \a size bytes.
+*/
+
+TQGArray::TQGArray( int size )
+{
+    if ( size < 0 ) {
+#if defined(TQT_CHECK_RANGE)
+	qWarning( "TQGArray: Cannot allocate array with negative length" );
+#endif
+	size = 0;
+    }
+    shd = newData();
+    TQ_CHECK_PTR( shd );
+    if ( size == 0 )				// zero length
+	return;
+    shd->data = NEW(char,size);
+    TQ_CHECK_PTR( shd->data );
+    shd->len =
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+	shd->maxl =
+#endif
+	size;
+}
+
+/*!
+  Constructs a shallow copy of \a a.
+*/
+
+TQGArray::TQGArray( const TQGArray &a )
+{
+    shd = a.shd;
+    shd->ref();
+}
+
+/*!
+  Dereferences the array data and deletes it if this was the last
+  reference.
+*/
+
+TQGArray::~TQGArray()
+{
+    if ( shd && shd->deref() ) {		// delete when last reference
+	if ( shd->data )			// is lost
+	    DELETE(shd->data);
+	deleteData( shd );
+	shd = 0;
+    }
+}
+
+
+/*!
+  \fn TQGArray &TQGArray::operator=( const TQGArray &a )
+
+  Assigns a shallow copy of \a a to this array and returns a reference to
+  this array.  Equivalent to assign().
+*/
+
+/*!
+  \fn void TQGArray::detach()
+
+  Detaches this array from shared array data.
+*/
+
+/*!
+  \fn char *TQGArray::data() const
+
+  Returns a pointer to the actual array data.
+*/
+
+/*!
+  \fn uint TQGArray::nrefs() const
+
+  Returns the reference count.
+*/
+
+/*!
+  \fn uint TQGArray::size() const
+
+  Returns the size of the array, in bytes.
+*/
+
+
+/*!
+  Returns TRUE if this array is equal to \a a, otherwise FALSE.
+  The comparison is bitwise, of course.
+*/
+
+bool TQGArray::isEqual( const TQGArray &a ) const
+{
+    if ( size() != a.size() )			// different size
+	return FALSE;
+    if ( data() == a.data() )			// has same data
+	return TRUE;
+    return (size() ? memcmp( data(), a.data(), size() ) : 0) == 0;
+}
+
+
+/*!
+  Resizes the array to \a newsize bytes. \a optim is either
+  \c MemOptim (the default) or \c SpeedOptim.
+
+  <b>Note:</b> \c SpeedOptim is only available if TQt is built in a
+  particular configuration. By default, \c SpeedOptim is not available
+  for general use.
+*/
+bool TQGArray::resize( uint newsize, Optimization optim )
+{
+#ifndef TQT_TQGARRAY_SPEED_OPTIM
+    TQ_UNUSED(optim);
+#endif
+
+    if ( newsize == shd->len
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+	 && newsize == shd->maxl
+#endif
+	) // nothing to do
+	return TRUE;
+    if ( newsize == 0 ) {			// remove array
+	if ( shd->data )
+	    DELETE(shd->data);
+	shd->data = 0;
+	shd->len = 0;
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+	shd->maxl = 0;
+#endif
+	return TRUE;
+    }
+
+    uint newmaxl = newsize;
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+    if ( optim == SpeedOptim ) {
+	if ( newsize <= shd->maxl &&
+	     ( newsize * 4 > shd->maxl || shd->maxl <= 4 ) ) {
+	    shd->len = newsize;
+	    return TRUE;
+	}
+	newmaxl = 4;
+	while ( newmaxl < newsize )
+	    newmaxl *= 2;
+	// try to spare some memory
+	if ( newmaxl >= 1024 * 1024 && newsize <= newmaxl - (newmaxl >> 2) )
+	    newmaxl -= newmaxl >> 2;
+    }
+    shd->maxl = newmaxl;
+#endif
+
+    if ( shd->data ) {				// existing data
+#if defined(DONT_USE_REALLOC)
+	char *newdata = NEW(char,newsize);	// manual realloc
+	memcpy( newdata, shd->data, TQMIN(shd->len,newmaxl) );
+	DELETE(shd->data);
+	shd->data = newdata;
+#else
+	shd->data = (char *)realloc( shd->data, newmaxl );
+#endif
+    } else {
+	shd->data = NEW(char,newmaxl);
+    }
+    if ( !shd->data )				// no memory
+	return FALSE;
+    shd->len = newsize;
+    return TRUE;
+}
+
+/*!\overload
+*/
+bool TQGArray::resize( uint newsize )
+{
+    return resize( newsize, MemOptim );
+}
+
+
+/*!
+  Fills the array with the repeated occurrences of \a d, which is
+  \a sz bytes long.
+  If \a len is specified as different from -1, then the array will be
+  resized to \a len*sz before it is filled.
+
+  Returns TRUE if successful, or FALSE if the memory cannot be allocated
+  (only when \a len != -1).
+
+  \sa resize()
+*/
+
+bool TQGArray::fill( const char *d, int len, uint sz )
+{
+    if ( len < 0 )
+	len = shd->len/sz;			// default: use array length
+    else if ( !resize( len*sz ) )
+	return FALSE;
+    if ( sz == 1 )				// 8 bit elements
+	memset( data(), *d, len );
+    else if ( sz == 4 ) {			// 32 bit elements
+	register TQ_INT32 *x = (TQ_INT32*)data();
+	TQ_INT32 v = *((TQ_INT32*)d);
+	while ( len-- )
+	    *x++ = v;
+    } else if ( sz == 2 ) {			// 16 bit elements
+	register TQ_INT16 *x = (TQ_INT16*)data();
+	TQ_INT16 v = *((TQ_INT16*)d);
+	while ( len-- )
+	    *x++ = v;
+    } else {					// any other size elements
+	register char *x = data();
+	while ( len-- ) {			// more complicated
+	    memcpy( x, d, sz );
+	    x += sz;
+	}
+    }
+    return TRUE;
+}
+
+/*!
+    \overload
+  Shallow copy. Dereference the current array and references the data
+  contained in \a a instead. Returns a reference to this array.
+  \sa operator=()
+*/
+
+TQGArray &TQGArray::assign( const TQGArray &a )
+{
+    a.shd->ref();				// avoid 'a = a'
+    if ( shd->deref() ) {			// delete when last reference
+	if ( shd->data )			// is lost
+	    DELETE(shd->data);
+	deleteData( shd );
+    }
+    shd = a.shd;
+    return *this;
+}
+
+/*!
+  Shallow copy. Dereference the current array and references the
+  array data \a d, which tqcontains \a len bytes.
+  Returns a reference to this array.
+
+  Do not delete \a d later, because TQGArray takes care of that.
+*/
+
+TQGArray &TQGArray::assign( const char *d, uint len )
+{
+    if ( shd->count > 1 ) {			// disconnect this
+	shd->count--;
+	shd = newData();
+	TQ_CHECK_PTR( shd );
+    } else {
+	if ( shd->data )
+	    DELETE(shd->data);
+    }
+    shd->data = (char *)d;
+    shd->len =
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+	shd->maxl =
+#endif
+	len;
+    return *this;
+}
+
+/*!
+  Deep copy. Dereference the current array and obtains a copy of the data
+  contained in \a a instead. Returns a reference to this array.
+  \sa assign(), operator=()
+*/
+
+TQGArray &TQGArray::duplicate( const TQGArray &a )
+{
+    if ( a.shd == shd ) {			// a.duplicate(a) !
+	if ( shd->count > 1 ) {
+	    shd->count--;
+	    register array_data *n = newData();
+	    TQ_CHECK_PTR( n );
+	    if ( (n->len=shd->len) ) {
+		n->data = NEW(char,n->len);
+		TQ_CHECK_PTR( n->data );
+		if ( n->data )
+		    memcpy( n->data, shd->data, n->len );
+	    } else {
+		n->data = 0;
+	    }
+	    shd = n;
+	}
+	return *this;
+    }
+    char *oldptr = 0;
+    if ( shd->count > 1 ) {			// disconnect this
+	shd->count--;
+	shd = newData();
+	TQ_CHECK_PTR( shd );
+    } else {					// delete after copy was made
+	oldptr = shd->data;
+    }
+    if ( a.shd->len ) {				// duplicate data
+	shd->data = NEW(char,a.shd->len);
+	TQ_CHECK_PTR( shd->data );
+	if ( shd->data )
+	    memcpy( shd->data, a.shd->data, a.shd->len );
+    } else {
+	shd->data = 0;
+    }
+    shd->len =
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+	shd->maxl =
+#endif
+	a.shd->len;
+    if ( oldptr )
+	DELETE(oldptr);
+    return *this;
+}
+
+/*!
+    \overload
+  Deep copy. Dereferences the current array and obtains a copy of
+  \a len characters from array data \a d instead.  Returns a reference
+  to this array.
+  \sa assign(), operator=()
+*/
+
+TQGArray &TQGArray::duplicate( const char *d, uint len )
+{
+    char *data;
+    if ( d == 0 || len == 0 ) {
+	data = 0;
+	len  = 0;
+    } else {
+	if ( shd->count == 1 && shd->len == len ) {
+	    if ( shd->data != d )		// avoid self-assignment
+		memcpy( shd->data, d, len );	// use same buffer
+	    return *this;
+	}
+	data = NEW(char,len);
+	TQ_CHECK_PTR( data );
+	memcpy( data, d, len );
+    }
+    if ( shd->count > 1 ) {			// detach
+	shd->count--;
+	shd = newData();
+	TQ_CHECK_PTR( shd );
+    } else {					// just a single reference
+	if ( shd->data )
+	    DELETE(shd->data);
+    }
+    shd->data = data;
+    shd->len =
+#ifdef TQT_TQGARRAY_SPEED_OPTIM
+	shd->maxl =
+#endif
+	len;
+    return *this;
+}
+
+/*!
+  Resizes this array to \a len bytes and copies the \a len bytes at
+  address \a d into it.
+
+  \warning This function disregards the reference count mechanism.  If
+  other TQGArrays reference the same data as this, all will be updated.
+*/
+
+void TQGArray::store( const char *d, uint len )
+{						// store, but not deref
+    resize( len );
+    memcpy( shd->data, d, len );
+}
+
+
+/*!
+  \fn array_data *TQGArray::sharedBlock() const
+
+  Returns a pointer to the shared array block.
+
+  \warning
+
+  Do not use this function.  Using it is begging for trouble.  We dare
+  not remove it, for fear of breaking code, but we \e strongly
+  discourage new use of it.
+*/
+
+/*!
+  \fn void TQGArray::setSharedBlock( array_data *p )
+
+  Sets the shared array block to \a p.
+
+  \warning
+
+  Do not use this function.  Using it is begging for trouble.  We dare
+  not remove it, for fear of breaking code, but we \e strongly
+  discourage new use of it.
+*/
+
+
+/*!
+  Sets raw data and returns a reference to the array.
+
+  Dereferences the current array and sets the new array data to \a d and
+  the new array size to \a len.	 Do not attempt to resize or re-assign the
+  array data when raw data has been set.
+  Call resetRawData(d,len) to reset the array.
+
+  Setting raw data is useful because it sets TQMemArray data without
+  allocating memory or copying data.
+
+  Example of intended use:
+  \code
+    static uchar bindata[] = { 231, 1, 44, ... };
+    TQByteArray	a;
+    a.setRawData( bindata, sizeof(bindata) );	// a points to bindata
+    TQDataStream s( a, IO_ReadOnly );		// open on a's data
+    s >> <something>;				// read raw bindata
+    s.close();
+    a.resetRawData( bindata, sizeof(bindata) ); // finished
+  \endcode
+
+  Example of misuse (do not do this):
+  \code
+    static uchar bindata[] = { 231, 1, 44, ... };
+    TQByteArray	a, b;
+    a.setRawData( bindata, sizeof(bindata) );	// a points to bindata
+    a.resize( 8 );				// will crash
+    b = a;					// will crash
+    a[2] = 123;					// might crash
+      // forget to resetRawData - will crash
+  \endcode
+
+  \warning If you do not call resetRawData(), TQGArray will attempt to
+  deallocate or reallocate the raw data, which might not be too good.
+  Be careful.
+*/
+
+TQGArray &TQGArray::setRawData( const char *d, uint len )
+{
+    duplicate( 0, 0 );				// set null data
+    shd->data = (char *)d;
+    shd->len  = len;
+    return *this;
+}
+
+/*!
+  Resets raw data.
+
+  The arguments must be the data, \a d, and length \a len, that were
+  passed to setRawData().  This is for consistency checking.
+*/
+
+void TQGArray::resetRawData( const char *d, uint len )
+{
+    if ( d != shd->data || len != shd->len ) {
+#if defined(TQT_CHECK_STATE)
+	qWarning( "TQGArray::resetRawData: Inconsistent arguments" );
+#endif
+	return;
+    }
+    shd->data = 0;
+    shd->len  = 0;
+}
+
+
+/*!
+  Finds the first occurrence of \a d in the array from position \a index,
+  where \a sz is the size of the \a d element.
+
+  Note that \a index is given in units of \a sz, not bytes.
+
+  This function only compares whole cells, not bytes.
+*/
+
+int TQGArray::tqfind( const char *d, uint index, uint sz ) const
+{
+    index *= sz;
+    if ( index >= shd->len ) {
+#if defined(TQT_CHECK_RANGE)
+	qWarning( "TQGArray::tqfind: Index %d out of range", index/sz );
+#endif
+	return -1;
+    }
+    register uint i;
+    uint ii;
+    switch ( sz ) {
+	case 1: {				// 8 bit elements
+	    register char *x = data() + index;
+	    char v = *d;
+	    for ( i=index; i<shd->len; i++ ) {
+		if ( *x++ == v )
+		    break;
+	    }
+	    ii = i;
+	    }
+	    break;
+	case 2: {				// 16 bit elements
+	    register TQ_INT16 *x = (TQ_INT16*)(data() + index);
+	    TQ_INT16 v = *((TQ_INT16*)d);
+	    for ( i=index; i<shd->len; i+=2 ) {
+		if ( *x++ == v )
+		    break;
+	    }
+	    ii = i/2;
+	    }
+	    break;
+	case 4: {				// 32 bit elements
+	    register TQ_INT32 *x = (TQ_INT32*)(data() + index);
+	    TQ_INT32 v = *((TQ_INT32*)d);
+	    for ( i=index; i<shd->len; i+=4 ) {
+		if ( *x++ == v )
+		    break;
+	    }
+	    ii = i/4;
+	    }
+	    break;
+	default: {				// any size elements
+	    for ( i=index; i<shd->len; i+=sz ) {
+		if ( memcmp( d, &shd->data[i], sz ) == 0 )
+		    break;
+	    }
+	    ii = i/sz;
+	    }
+	    break;
+    }
+    return i<shd->len ? (int)ii : -1;
+}
+
+/*!
+  Returns the number of occurrences of \a d in the array, where \a sz is
+  the size of the \a d element.
+
+  This function only compares whole cells, not bytes.
+*/
+
+int TQGArray::tqcontains( const char *d, uint sz ) const
+{
+    register uint i = shd->len;
+    int count = 0;
+    switch ( sz ) {
+	case 1: {				// 8 bit elements
+	    register char *x = data();
+	    char v = *d;
+	    while ( i-- ) {
+		if ( *x++ == v )
+		    count++;
+	    }
+	    }
+	    break;
+	case 2: {				// 16 bit elements
+	    register TQ_INT16 *x = (TQ_INT16*)data();
+	    TQ_INT16 v = *((TQ_INT16*)d);
+	    i /= 2;
+	    while ( i-- ) {
+		if ( *x++ == v )
+		    count++;
+	    }
+	    }
+	    break;
+	case 4: {				// 32 bit elements
+	    register TQ_INT32 *x = (TQ_INT32*)data();
+	    TQ_INT32 v = *((TQ_INT32*)d);
+	    i /= 4;
+	    while ( i-- ) {
+		if ( *x++ == v )
+		    count++;
+	    }
+	    }
+	    break;
+	default: {				// any size elements
+	    for ( i=0; i<shd->len; i+=sz ) {
+		if ( memcmp(d, &shd->data[i], sz) == 0 )
+		    count++;
+	    }
+	    }
+	    break;
+    }
+    return count;
+}
+
+static int cmp_item_size = 0;
+
+#if defined(TQ_C_CALLBACKS)
+extern "C" {
+#endif
+
+#ifdef TQ_OS_TEMP
+static int __cdecl cmp_arr( const void *n1, const void *n2 )
+#else
+static int cmp_arr( const void *n1, const void *n2 )
+#endif
+{
+    return ( n1 && n2 ) ? memcmp( n1, n2, cmp_item_size )
+			: ( n1 ? 1 : ( n2 ? -1 : 0 ) );
+    // ### TQt 3.0: Add a virtual compareItems() method and call that instead
+}
+
+#if defined(TQ_C_CALLBACKS)
+}
+#endif
+
+/*!
+  Sorts the first \a sz items of the array.
+*/
+
+void TQGArray::sort( uint sz )
+{
+    int numItems = size() / sz;
+    if ( numItems < 2 )
+	return;
+
+#ifdef TQT_THREAD_SUPPORT
+    TQMutexLocker locker( tqt_global_mutexpool ?
+			 tqt_global_mutexpool->get( &cmp_item_size ) : 0 );
+#endif // TQT_THREAD_SUPPORT
+
+    cmp_item_size = sz;
+    qsort( shd->data, numItems, sz, cmp_arr );
+}
+
+/*!
+  Binary search; assumes that \a d is a sorted array of size \a sz.
+*/
+
+int TQGArray::bsearch( const char *d, uint sz ) const
+{
+    int numItems = size() / sz;
+    if ( !numItems )
+	return -1;
+
+#ifdef TQT_THREAD_SUPPORT
+    TQMutexLocker locker( tqt_global_mutexpool ?
+			 tqt_global_mutexpool->get( &cmp_item_size ) : 0 );
+#endif // TQT_THREAD_SUPPORT
+
+    cmp_item_size = sz;
+    char* r = (char*)::bsearch( d, shd->data, numItems, sz, cmp_arr );
+    if ( !r )
+	return -1;
+    while( (r >= shd->data + sz) && (cmp_arr( r - sz, d ) == 0) )
+	r -= sz;	// search to first of equal elements; bsearch is undef
+    return (int)(( r - shd->data ) / sz);
+}
+
+
+/*!
+  \fn char *TQGArray::at( uint index ) const
+
+  Returns a pointer to the byte at offset \a index in the array.
+*/
+
+/*!
+  Expand the array if necessary, and copies (the first part of) its
+  contents from the \a index * \a sz bytes at \a d.
+
+  Returns TRUE if the operation succeeds, FALSE if it runs out of
+  memory.
+
+  \warning This function disregards the reference count mechanism.  If
+  other TQGArrays reference the same data as this, all will be changed.
+*/
+
+bool TQGArray::setExpand( uint index, const char *d, uint sz )
+{
+    index *= sz;
+    if ( index >= shd->len ) {
+	if ( !resize( index+sz ) )		// no memory
+	    return FALSE;
+    }
+    memcpy( data() + index, d, sz );
+    return TRUE;
+}
+
+
+/*!
+  Prints a warning message if at() or [] is given a bad index.
+*/
+
+void TQGArray::msg_index( uint index )
+{
+#if defined(TQT_CHECK_RANGE)
+    qWarning( "TQGArray::at: Absolute index %d out of range", index );
+#else
+    TQ_UNUSED( index )
+#endif
+}
+
+
+/*!
+  Returns a new shared array block.
+*/
+
+TQGArray::array_data * TQGArray::newData()
+{
+    return new array_data;
+}
+
+
+/*!
+  Deletes the shared array block \a p.
+*/
+
+void TQGArray::deleteData( array_data *p )
+{
+    delete p;
+}