qfileinfo_win32.cpp 6.86 KB
Newer Older
dimitri's avatar
dimitri committed
1 2
/******************************************************************************
 *
dimitri's avatar
dimitri committed
3
 * 
dimitri's avatar
dimitri committed
4
 *
dimitri's avatar
dimitri committed
5
 * Copyright (C) 1997-2001 by Dimitri van Heesch.
dimitri's avatar
dimitri committed
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation under the terms of the GNU General Public License is hereby 
 * granted. No representations are made about the suitability of this software 
 * for any purpose. It is provided "as is" without express or implied warranty.
 * See the GNU General Public License for more details.
 *
 * Documents produced by Doxygen are derivative works derived from the
 * input used in their production; they are not affected by this license.
 *
 * Based on qfileinfo_unix.cpp 
 *
 * Copyright (C) 1992-2000 Trolltech AS.
 */

#include "qglobal.h"

#include "qfileinfo.h"
#include "qfiledefs_p.h"
#include "qdatetime.h"
#include "qdir.h"

void QFileInfo::slashify( QString& n )
{
  for ( int i=0; i<(int)n.length(); i++ ) 
  {
     if ( n[i] == '\\' )
          n[i] = '/';
  }
}

void QFileInfo::makeAbs( QString & )
{
  // TODO: what to do here?
  return;
}

extern bool qt_file_access( const QString& fn, int t );

/*!
  Returns TRUE if we are pointing to a real file.
  \sa isDir(), isSymLink()
*/
bool QFileInfo::isFile() const
{
    if ( !fic || !cache )
	doStat();
    return fic ? (fic->st.st_mode & STAT_MASK) == STAT_REG : FALSE;
}

/*!
  Returns TRUE if we are pointing to a directory or a symbolic link to
  a directory.
  \sa isFile(), isSymLink()
*/

bool QFileInfo::isDir() const
{
    if ( !fic || !cache )
	doStat();
    return fic ? (fic->st.st_mode & STAT_MASK) == STAT_DIR : FALSE;
}

/*!
  Returns TRUE if we are pointing to a symbolic link.
  \sa isFile(), isDir(), readLink()
*/

bool QFileInfo::isSymLink() const
{
    if ( !fic || !cache )
	doStat();
    return fic ? fic->isSymLink : FALSE;
}


/*!
  Returns the name a symlink points to, or a null QString if the
  object does not refer to a symbolic link.

  This name may not represent an existing file; it is only a string.
  QFileInfo::exists() returns TRUE if the symlink points to an
  existing file.

  \sa exists(), isSymLink(), isDir(), isFile()
*/

QString QFileInfo::readLink() const
{
    QString r;
    return r;
}

static const uint nobodyID = (uint) -2;

/*!
  Returns the owner of the file.

  On systems where files do not have owners this function returns 
  a null string.

  Note that this function can be time-consuming under UNIX. (in the order
  of milliseconds on a 486 DX2/66 running Linux).

  \sa ownerId(), group(), groupId()
*/

QString QFileInfo::owner() const
{
    return QString::null;
}

/*!
  Returns the id of the owner of the file.

  On systems where files do not have owners this function returns ((uint) -2).

  \sa owner(), group(), groupId()
*/

uint QFileInfo::ownerId() const
{
    return (uint)-2;
}

/*!
  Returns the group the file belongs to.

  On systems where files do not have groups this function always
  returns 0.

  Note that this function can be time-consuming under UNIX (in the order of
  milliseconds on a 486 DX2/66 running Linux).

  \sa groupId(), owner(), ownerId()
*/

QString QFileInfo::group() const
{
    return QString::null;
}

/*!
  Returns the id of the group the file belongs to.

  On systems where files do not have groups this function always
  returns ((uind) -2).

  \sa group(), owner(), ownerId()
*/

uint QFileInfo::groupId() const
{
    return (uint)-2;
}


/*!
  \fn bool QFileInfo::permission( int permissionSpec ) const

  Tests for file permissions.  The \e permissionSpec argument can be several
  flags of type PermissionSpec or'ed together to check for permission
  combinations.

  On systems where files do not have permissions this function always
  returns TRUE.

  Example:
  \code
    QFileInfo fi( "/tmp/tonsils" );
    if ( fi.permission( QFileInfo::WriteUser | QFileInfo::ReadGroup ) )
	qWarning( "Tonsils can be changed by me, and the group can read them.");
    if ( fi.permission( QFileInfo::WriteGroup | QFileInfo::WriteOther ) )
	qWarning( "Danger! Tonsils can be changed by the group or others!" );
  \endcode

  \sa isReadable(), isWritable(), isExecutable()
*/

bool QFileInfo::permission( int permissionSpec ) const
{
  return TRUE;
}

/*!
  Returns the file size in bytes, or 0 if the file does not exist if the size
  cannot be fetched.
*/

uint QFileInfo::size() const
{
    if ( !fic || !cache )
	doStat();
    if ( fic )
	return (uint)fic->st.st_size;
    else
	return 0;
}


/*!
  Returns the date and time when the file was last modified.
  \sa lastRead()
*/

QDateTime QFileInfo::lastModified() const
{
    QDateTime dt;
    if ( !fic || !cache )
	doStat();
    if ( fic )
	dt.setTime_t( fic->st.st_mtime );
    return dt;
}

/*!
  Returns the date and time when the file was last read (accessed).

  On systems that do not support last read times, the modification time is
  returned.

  \sa lastModified()
*/

QDateTime QFileInfo::lastRead() const
{
    QDateTime dt;
    if ( !fic || !cache )
	doStat();
    if ( fic )
	dt.setTime_t( fic->st.st_atime );
    return dt;
}


void QFileInfo::doStat() const
{
    QFileInfo *that = ((QFileInfo*)this);	// mutable function
    if ( !that->fic )
	that->fic = new QFileInfoCache;
    STATBUF *b = &that->fic->st;
    that->fic->isSymLink = FALSE;

    int r;

    r = STAT( QFile::encodeName(fn), b );

    if ( r != 0 ) {
	delete that->fic;
	that->fic = 0;
    }
}

/*!
  Returns the directory path of the file.

  If \e absPath is TRUE an absolute path is always returned.

  \sa dir(), filePath(), fileName(), isRelative()
*/
#ifndef QT_NO_DIR
QString QFileInfo::dirPath( bool absPath ) const
{
    QString s;
    if ( absPath )
	s = absFilePath();
    else
	s = fn;
    int pos = s.findRev( '/' );
    if ( pos == -1 ) {
	return QString::fromLatin1(".");
    } else {
	if ( pos == 0 )
	    return QString::fromLatin1( "/" );
	return s.left( pos );
    }
}
#endif
/*!
  Returns the name of the file, the file path is not included.

  Example:
  \code
     QFileInfo fi( "/tmp/abdomen.lower" );
     QString name = fi.fileName();		// name = "abdomen.lower"
  \endcode

  \sa isRelative(), filePath(), baseName(), extension()
*/

QString QFileInfo::fileName() const
{
    int p = fn.findRev( '/' );
    if ( p == -1 ) {
	return fn;
    } else {
	return fn.mid(p+1);
    }
}

/*!
  Returns the absolute path name.

  The absolute path name is the file name including the absolute path. If
  the QFileInfo is absolute (i.e. not relative) this function will return
  the same string as filePath().

  Note that this function can be time-consuming under UNIX. (in the order
  of milliseconds on a 486 DX2/66 running Linux).

  \sa isRelative(), filePath()
*/
#ifndef QT_NO_DIR
QString QFileInfo::absFilePath() const
{
    if ( QDir::isRelativePath(fn) ) {
	QString tmp = QDir::currentDirPath();
	tmp += '/';
	tmp += fn;
	makeAbs( tmp );
	return QDir::cleanDirPath( tmp );
    } else {
	QString tmp = fn;
	makeAbs( tmp );
	return QDir::cleanDirPath( tmp );
    }

}
#endif