kio Library API Documentation

KFileItem Class Reference

A KFileItem is a generic class to handle a file, local or remote. More...

#include <kfileitem.h>

List of all members.

Public Types

enum  { Unknown = (mode_t) - 1 }

Public Member Functions

 KFileItem (const KIO::UDSEntry &_entry, const KURL &_url, bool _determineMimeTypeOnDemand=false, bool _urlIsDirectory=false)
 KFileItem (mode_t _mode, mode_t _permissions, const KURL &_url, bool _determineMimeTypeOnDemand=false)
 KFileItem (const KURL &url, const QString &mimeType, mode_t mode)
 KFileItem (const KFileItem &item)
virtual ~KFileItem ()
void refresh ()
void refreshMimeType ()
const KURLurl () const
void setURL (const KURL &url)
void setName (const QString &name)
mode_t permissions () const
QString permissionsString () const
mode_t mode () const
QString user () const
QString group () const
bool isLink () const
bool isDir () const
bool isFile () const
bool isReadable () const
QString linkDest () const
KIO::filesize_t size () const
time_t time (unsigned int which) const
QString timeString (unsigned int which=KIO::UDS_MODIFICATION_TIME) const
bool isLocalFile () const
const QStringtext () const
const QStringname (bool lowerCase=false) const
QString mimetype () const
KMimeType::Ptr determineMimeType ()
KMimeType::Ptr mimeTypePtr () const
bool isMimeTypeKnown () const
QString mimeComment ()
QString iconName ()
QPixmap pixmap (int _size, int _state=0) const
int overlays () const
QString getStatusBarInfo ()
QString getToolTipText (int maxcount=6)
bool acceptsDrops ()
void run ()
const KIO::UDSEntryentry () const
bool isMarked () const
void mark ()
void unmark ()
bool cmp (const KFileItem &item)
virtual void setExtraData (const void *key, void *value)
virtual const void * extraData (const void *key) const
virtual void * extraData (const void *key)
virtual void removeExtraData (const void *key)
void setMetaInfo (const KFileMetaInfo &info)
const KFileMetaInfometaInfo (bool autoget=true, int what=KFileMetaInfo::Fastest) const
void assign (const KFileItem &item)

Protected Member Functions

void init (bool _determineMimeTypeOnDemand)
QString parsePermissions (mode_t perm) const
virtual void virtual_hook (int id, void *data)

Friends

QDataStreamoperator<< (QDataStream &s, const KFileItem &a)
QDataStreamoperator>> (QDataStream &s, KFileItem &a)


Detailed Description

A KFileItem is a generic class to handle a file, local or remote.

In particular, it makes it easier to handle the result of KIO::listDir (UDSEntry isn't very friendly to use). It includes many file attributes such as mimetype, icon, text, mode, link...

Definition at line 39 of file kfileitem.h.


Constructor & Destructor Documentation

KFileItem::KFileItem const KIO::UDSEntry _entry,
const KURL _url,
bool  _determineMimeTypeOnDemand = false,
bool  _urlIsDirectory = false
 

Creates an item representing a file, from a UDSEntry.

This is the preferred constructor when using KIO::listDir().

Parameters:
_entry the KIO entry used to get the file, contains info about it
_url the file url
_determineMimeTypeOnDemand specifies if the mimetype of the given URL should be determined immediately or on demand
_urlIsDirectory specifies if the url is just the directory of the fileitem and the filename from the UDSEntry should be used.

Definition at line 53 of file kfileitem.cpp.

References KURL::addPath(), QValueList::begin(), KIO::decodeFileName(), QValueList::end(), init(), QString::isEmpty(), KMimeType::mimeType(), KGlobal::staticQString(), and KIO::UDSEntry.

KFileItem::KFileItem mode_t  _mode,
mode_t  _permissions,
const KURL _url,
bool  _determineMimeTypeOnDemand = false
 

Creates an item representing a file, from all the necessary info for it.

Parameters:
_mode the file mode (according to stat() (e.g. S_IFDIR...) Set to KFileItem::Unknown if unknown. For local files, KFileItem will use stat().
_permissions the access permissions If you set both the mode and the permissions, you save a ::stat() for local files. Set to KFileItem::Unknown if you don't know the mode or the permission.
_url the file url
_determineMimeTypeOnDemand specify if the mimetype of the given URL should be determined immediately or on demand

Definition at line 123 of file kfileitem.cpp.

References init().

KFileItem::KFileItem const KURL url,
const QString mimeType,
mode_t  mode
 

Creates an item representing a file, for which the mimetype is already known.

Parameters:
url the file url
mimeType the name of the file's mimetype
mode the mode (S_IFDIR...)

Definition at line 140 of file kfileitem.cpp.

References init(), and KMimeType::mimeType().

KFileItem::KFileItem const KFileItem item  ) 
 

Copy constructor.

Note that extra-data set via setExtraData() is not deeply copied -- just the pointers are copied.

Definition at line 159 of file kfileitem.cpp.

References assign().

KFileItem::~KFileItem  )  [virtual]
 

Destructs the KFileItem.

Extra data set via setExtraData() is not deleted.

Definition at line 165 of file kfileitem.cpp.


Member Function Documentation

void KFileItem::refresh  ) 
 

Re-reads information (currently only permissions and mimetype).

This is called when the _file_ changes.

Definition at line 229 of file kfileitem.cpp.

References KIO::filesize_t, init(), and KIO::UDSEntry.

Referenced by KDirListerCache::FilesChanged().

void KFileItem::refreshMimeType  ) 
 

Re-reads mimetype information.

This is called when the mimetype database changes.

Definition at line 249 of file kfileitem.cpp.

References init().

Referenced by KDirListerCache::FileRenamed().

const KURL& KFileItem::url  )  const [inline]
 

Returns the url of the file.

Returns:
the url of the file

Definition at line 111 of file kfileitem.h.

Referenced by KDirListerCache::FilesRemoved(), KDirOperator::insertNewFiles(), KPropsDlgPlugin::isDesktopFile(), KFilePropsPlugin::KFilePropsPlugin(), run(), KDirOperator::selectDir(), and KFileTreeViewItem::url().

void KFileItem::setURL const KURL url  ) 
 

Sets the item's URL.

Do not call unless you know what you are doing! (used for example when an item got renamed).

Parameters:
url the item's URL

Definition at line 255 of file kfileitem.cpp.

References setName().

Referenced by KDirListerCache::FileRenamed().

void KFileItem::setName const QString name  ) 
 

Sets the item's name (i.e.

the filename). This is automatically done by setURL, to set the name from the URL's fileName(). This method is provided for some special cases like relative paths as names (KFindPart)

Parameters:
name the item's name

Definition at line 261 of file kfileitem.cpp.

References KIO::decodeFileName().

Referenced by setURL().

mode_t KFileItem::permissions  )  const [inline]
 

Returns the permissions of the file (stat.st_mode containing only permissions).

Returns:
the permissions of the file

Definition at line 132 of file kfileitem.h.

Referenced by KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin().

QString KFileItem::permissionsString  )  const
 

Returns the access permissions for the file as a string.

Returns:
the access persmission as string

Definition at line 747 of file kfileitem.cpp.

References QString::isNull(), and parsePermissions().

Referenced by KFileListViewItem::init().

mode_t KFileItem::mode  )  const [inline]
 

Returns the file type (stat.st_mode containing only S_IFDIR, S_IFLNK, ...).

Returns:
the file type

Definition at line 144 of file kfileitem.h.

Referenced by acceptsDrops(), KPropsDlgPlugin::isDesktopFile(), KFilePropsPlugin::KFilePropsPlugin(), and KSimpleFileFilter::passesFilter().

QString KFileItem::user  )  const
 

Returns the owner of the file.

Returns:
the file's owner

Definition at line 354 of file kfileitem.cpp.

References QString::fromLocal8Bit(), QString::isEmpty(), and KURL::path().

Referenced by getToolTipText(), KFileListViewItem::init(), and KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin().

QString KFileItem::group  )  const
 

Returns the group of the file.

Returns:
the file's group

Definition at line 369 of file kfileitem.cpp.

References QString::fromLocal8Bit(), QString::isEmpty(), KURL::path(), and QString::sprintf().

Referenced by getToolTipText(), KFileListViewItem::init(), and KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin().

bool KFileItem::isLink  )  const [inline]
 

Returns true if this item represents a link in the UNIX sense of a link.

Returns:
true if the file is a link

Definition at line 163 of file kfileitem.h.

Referenced by KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin(), KFilePropsPlugin::KFilePropsPlugin(), and parsePermissions().

bool KFileItem::isDir  )  const
 

Returns true if this item represents a directory.

Returns:
true if the item is a directory

Definition at line 520 of file kfileitem.cpp.

References kdDebug().

Referenced by KFileViewSignaler::activate(), KDirListerCache::FilesRemoved(), KCombiView::insertItem(), KDirOperator::insertNewFiles(), KFileTreeViewItem::isDir(), isFile(), KDirLister::itemsForDir(), KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin(), KFilePropsPlugin::KFilePropsPlugin(), KDirLister::matchesFilter(), parsePermissions(), KDirOperator::prepareCompletionObjects(), KFileView::removeItem(), KFileDialog::setSelection(), KFileIconView::setSorting(), and KFileView::updateNumbers().

bool KFileItem::isFile  )  const [inline]
 

Returns true if this item represents a file (and not a a directory).

Returns:
true if the item is a file

Definition at line 175 of file kfileitem.h.

References isDir().

Referenced by KFileView::updateNumbers().

bool KFileItem::isReadable  )  const
 

Checks whether the file is readable.

In some cases (remote files), we may return true even though it can't be read.

Returns:
true if the file can be read - more precisely, false if we know for sure it can't

Definition at line 499 of file kfileitem.cpp.

References QFile::encodeName(), and KURL::path().

Referenced by overlays().

QString KFileItem::linkDest  )  const
 

Returns the link destination if isLink() == true.

Returns:
the link destination. QString::null if the item is not a link

Definition at line 267 of file kfileitem.cpp.

References QValueList::begin(), QFile::decodeName(), QValueList::end(), and KURL::path().

Referenced by getStatusBarInfo(), KFilePropsPlugin::KFilePropsPlugin(), and run().

KIO::filesize_t KFileItem::size  )  const
 

Returns the size of the file, if known.

Returns:
the file size, or 0 if not known

Definition at line 288 of file kfileitem.cpp.

References QValueList::begin(), QValueList::end(), KIO::filesize_t, and KURL::path().

Referenced by cmp(), getStatusBarInfo(), getToolTipText(), KFileListViewItem::init(), KFilePropsPlugin::KFilePropsPlugin(), and KFileIconView::setSorting().

time_t KFileItem::time unsigned int  which  )  const
 

Requests the modification, access or creation time, depending on which.

Parameters:
which UDS_MODIFICATION_TIME, UDS_ACCESS_TIME or even UDS_CREATION_TIME
Returns:
the time asked for, (time_t)0 if not available
See also:
timeString()

Definition at line 310 of file kfileitem.cpp.

References QValueList::begin(), QValueList::end(), and KURL::path().

Referenced by cmp(), KFilePropsPlugin::KFilePropsPlugin(), KFileIconView::setSorting(), and timeString().

QString KFileItem::timeString unsigned int  which = KIO::UDS_MODIFICATION_TIME  )  const
 

Requests the modification, access or creation time as a string, depending on which.

Parameters:
which UDS_MODIFICATION_TIME, UDS_ACCESS_TIME or even UDS_CREATION_TIME
Returns:
a formatted string of the requested time.
See also:
time

Definition at line 789 of file kfileitem.cpp.

References KLocale::formatDateTime(), KGlobal::locale(), QDateTime::setTime_t(), and time().

Referenced by getToolTipText(), and KFileListViewItem::init().

bool KFileItem::isLocalFile  )  const [inline]
 

Returns true if the file is a local file.

Returns:
true if the file is local, false otherwise

Definition at line 218 of file kfileitem.h.

Referenced by KPropsDlgPlugin::isDesktopFile().

const QString& KFileItem::text  )  const [inline]
 

Returns the text of the file item.

It's not exactly the filename since some decoding happens ('%2F'->'/').

Returns:
the text of the file item

Definition at line 225 of file kfileitem.h.

Referenced by KFileListViewItem::init(), KFileIconView::insertItem(), KDirLister::matchesFilter(), and KFileIconView::setSorting().

const QString& KFileItem::name bool  lowerCase = false  )  const [inline]
 

Return the name of the file item (without a path).

Similar to text(), but unencoded, i.e. the original name.

Parameters:
lowerCase if true, the name will be returned in lower case, which is useful to speed up sorting by name, case insensitively.
Returns:
the file's name

Definition at line 234 of file kfileitem.h.

References QString::isNull(), and QString::lower().

Referenced by KFileDialog::multiSelectionChanged(), KSimpleFileFilter::passesFilter(), KDirOperator::prepareCompletionObjects(), and KFileView::setCurrentItem().

QString KFileItem::mimetype  )  const
 

Returns the mimetype of the file item.

If _determineMimeTypeOnDemand was used in the constructor, this will determine the mimetype first. Equivalent to determineMimeType()->name()

Returns:
the mime type of the file

Definition at line 388 of file kfileitem.cpp.

References determineMimeType().

Referenced by acceptsDrops(), KPropsDlgPlugin::isDesktopFile(), KFilePropsPlugin::KFilePropsPlugin(), KDirLister::matchesMimeFilter(), and metaInfo().

KMimeType::Ptr KFileItem::determineMimeType  ) 
 

Returns the mimetype of the file item.

If _determineMimeTypeOnDemand was used in the constructor, this will determine the mimetype first.

Returns:
the mime type

Definition at line 394 of file kfileitem.cpp.

References KMimeType::findByURL().

Referenced by assign(), getStatusBarInfo(), getToolTipText(), iconName(), mimeComment(), and mimetype().

KMimeType::Ptr KFileItem::mimeTypePtr  )  const [inline]
 

Returns the currently known mimetype of the file item.

This will not try to determine the mimetype if unknown.

Returns:
the known mime type

Definition at line 264 of file kfileitem.h.

Referenced by KSimpleFileFilter::passesFilter().

QString KFileItem::mimeComment  ) 
 

Returns the descriptive comment for this mime type, or the mime type itself if none is present.

Returns:
the mime type description, or the mime type itself

Definition at line 414 of file kfileitem.cpp.

References determineMimeType(), and QString::isEmpty().

Referenced by KFilePropsPlugin::KFilePropsPlugin().

QString KFileItem::iconName  ) 
 

Returns the full path name to the icon that represents this mime type.

Returns:
iconName the name of the file's icon

Definition at line 424 of file kfileitem.cpp.

References determineMimeType().

QPixmap KFileItem::pixmap int  _size,
int  _state = 0
const
 

Returns a pixmap representing the file.

Parameters:
_size Size for the pixmap in pixels. Zero will return the globally configured default size.
_state The state of the icon: KIcon::DefaultState, KIcon::ActiveState or KIcon::DisabledState.
Returns:
the pixmap

Definition at line 457 of file kfileitem.cpp.

References KURL::fileName(), KMimeType::findByURL(), QString::isEmpty(), QPixmap::isNull(), kdWarning(), QString::left(), QString::length(), KMimeType::mimeType(), overlays(), KURL::path(), QString::right(), KURL::setPath(), and KGlobal::staticQString().

Referenced by KFileListViewItem::init(), KFileIconView::insertItem(), and KFileDetailView::updateView().

int KFileItem::overlays  )  const
 

Returns the overlays (bitfield of KIcon::*Overlay flags) that are used for this item's pixmap.

Overlays are used to show for example, whether a file can be modified.

Returns:
the overlays of the pixmap

Definition at line 430 of file kfileitem.cpp.

References KURL::fileName(), KFileShare::isDirectoryShared(), isReadable(), KURL::path(), and QString::right().

Referenced by pixmap().

QString KFileItem::getStatusBarInfo  ) 
 

Returns the string to be displayed in the statusbar, e.g.

when the mouse is over this item

Returns:
the status bar information

Definition at line 555 of file kfileitem.cpp.

References QString::arg(), determineMimeType(), KIO::filesize_t, QString::isEmpty(), linkDest(), and size().

QString KFileItem::getToolTipText int  maxcount = 6  ) 
 

Returns the string to be displayed in the tool tip when the mouse is over this item.

This may load a plugin to determine additional information specific to the mimetype of the file.

Parameters:
maxcount the maximum number of entries shown
Returns:
the tool tip string

Definition at line 594 of file kfileitem.cpp.

References QString::arg(), KIO::convertSize(), determineMimeType(), QStyleSheet::escape(), group(), QString::isEmpty(), KFileMetaInfo::isEmpty(), KFileMetaInfoItem::isValid(), KFileMetaInfo::isValid(), KFileMetaInfo::item(), QString::left(), QString::length(), metaInfo(), parsePermissions(), KFileMetaInfo::preferredKeys(), size(), KFileMetaInfoItem::string(), timeString(), KFileMetaInfoItem::translatedKey(), and user().

bool KFileItem::acceptsDrops  ) 
 

Returns true if files can be dropped over this item.

Contrary to popular belief, not only dirs will return true :) Executables, .desktop files, will do so as well.

Returns:
true if you can drop files over the item

Definition at line 530 of file kfileitem.cpp.

References QFile::encodeName(), mimetype(), mode(), and KURL::path().

void KFileItem::run  ) 
 

Let's "KRun" this file ! (e.g.

when file is clicked or double-clicked or return is pressed)

Definition at line 662 of file kfileitem.cpp.

References linkDest(), and url().

const KIO::UDSEntry& KFileItem::entry  )  const [inline]
 

Returns the UDS entry.

Used by the tree view to access all details by position.

Returns:
the UDS entry

Definition at line 335 of file kfileitem.h.

References KIO::UDSEntry.

bool KFileItem::isMarked  )  const [inline]
 

Used when updating a directory.

marked == seen when refreshing.

Returns:
true if the file item is marked

Definition at line 341 of file kfileitem.h.

void KFileItem::mark  )  [inline]
 

Marks the item.

See also:
isMarked()

Definition at line 346 of file kfileitem.h.

void KFileItem::unmark  )  [inline]
 

Unmarks the item.

See also:
isMarked()

Definition at line 351 of file kfileitem.h.

bool KFileItem::cmp const KFileItem item  ) 
 

Somewhat like a comparison operator, but more explicit.

Parameters:
item the item to compare
Returns:
true if all values are equal

Definition at line 673 of file kfileitem.cpp.

References m_bIsLocalURL, m_bLink, m_fileMode, m_group, m_permissions, m_strName, m_user, size(), and time().

void KFileItem::setExtraData const void *  key,
void *  value
[virtual]
 

This allows to associate some "extra" data to a KFileItem.

As one KFileItem can be used by several objects (often views) which all need to add some data, you have to use a key to reference your extra data within the KFileItem.

That way a KFileItem can hold and provide access to all those views separately.

I.e. a KFileIconView that associates a KFileIconViewItem (an item suitable for use with QIconView) does

kfileItem->setExtraData( this, iconViewItem );

and can later access the iconViewItem by doing

KFileIconViewItem *iconViewItem = static_cast<KFileIconViewItem*>( kfileItem->extraData( this ));

This is usually more efficient then having every view associate data to items by using a separate QDict or QMap.

Note: you have to remove and destroy the data you associated yourself when you don't need it anymore!

Parameters:
key the key of the extra data
value the value of the extra data
See also:
extraData

removeExtraData

Definition at line 718 of file kfileitem.cpp.

References QMap< const void *, void * >::replace().

Referenced by KFileIconView::insertItem(), and KFileDetailView::insertItem().

const void * KFileItem::extraData const void *  key  )  const [virtual]
 

Retrieves the extra data with the given key.

Parameters:
key the key of the extra data
Returns:
the extra data associated to an item with key via setExtraData. 0L if nothing was associated with key.
See also:
extraData

Definition at line 726 of file kfileitem.cpp.

References QMapConstIterator::data(), QMap< const void *, void * >::end(), and QMap< const void *, void * >::find().

Referenced by KFileDetailView::ensureItemVisible(), KFileTreeView::findItem(), KFileTreeBranch::findTVIByURL(), KFileDetailView::isSelected(), KFileDetailView::removeItem(), KFileDetailView::setCurrentItem(), and KFileDetailView::setSelected().

void * KFileItem::extraData const void *  key  )  [virtual]
 

Retrieves the extra data with the given key.

Parameters:
key the key of the extra data
Returns:
the extra data associated to an item with key via setExtraData. 0L if nothing was associated with key.
See also:
extraData

Definition at line 734 of file kfileitem.cpp.

References QMapIterator::data(), QMap< const void *, void * >::end(), and QMap< const void *, void * >::find().

void KFileItem::removeExtraData const void *  key  )  [virtual]
 

Removes the extra data associated with an item via key.

Parameters:
key the key of the extra data to remove

Definition at line 742 of file kfileitem.cpp.

References QMap< const void *, void * >::remove().

void KFileItem::setMetaInfo const KFileMetaInfo info  ) 
 

Sets the metainfo of this item to info.

Parameters:
info the new meta info

Definition at line 796 of file kfileitem.cpp.

Referenced by KFileMetaPropsPlugin::KFileMetaPropsPlugin().

const KFileMetaInfo & KFileItem::metaInfo bool  autoget = true,
int  what = KFileMetaInfo::Fastest
const
 

Returns the metainfo of this item.

Parameters:
autoget if true, the metainfo will automatically be created
what ignored

Definition at line 801 of file kfileitem.cpp.

References KFileMetaInfo::isValid(), mimetype(), and KGlobalSettings::showFilePreview().

Referenced by getToolTipText(), and KFileMetaPropsPlugin::KFileMetaPropsPlugin().

void KFileItem::assign const KFileItem item  ) 
 

Somewhat like an assignment operator, but more explicit.

Note: extra-data set with setExtraData() is not copied, so be careful what you do!

I.e. KDirLister uses it to update existing items from a fresh item.

Parameters:
item the item to copy

Definition at line 686 of file kfileitem.cpp.

References d, determineMimeType(), m_access, m_bIsLocalURL, m_bLink, m_bMimeTypeKnown, m_entry, m_fileMode, m_group, m_guessedMimeType, m_metaInfo, m_permissions, m_pMimeType, m_size, m_strLowerCaseName, m_strName, m_strText, m_time, m_url, and m_user.

Referenced by KFileItem().

void KFileItem::init bool  _determineMimeTypeOnDemand  )  [protected]
 

Computes the text, mode, and mimetype from the UDSEntry Called by constructor, but can be called again later.

Definition at line 170 of file kfileitem.cpp.

References QFile::encodeName(), KIO::filesize_t, KMimeType::findByURL(), KURL::isLocalFile(), and KURL::path().

Referenced by KFileItem(), refresh(), and refreshMimeType().

QString KFileItem::parsePermissions mode_t  perm  )  const [protected]
 

Parses the given permission set and provides it for access().

Definition at line 755 of file kfileitem.cpp.

References QString::fromLatin1(), isDir(), and isLink().

Referenced by getToolTipText(), and permissionsString().


The documentation for this class was generated from the following files:
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This file is part of the documentation for kio Library Version 3.2.2.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Wed May 5 07:20:47 2004 by doxygen 1.3.6 written by Dimitri van Heesch, © 1997-2003