kio Library API Documentation

KFileItem Class Reference

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

#include <kfileitem.h>

Collaboration diagram for KFileItem:

Collaboration graph
[legend]
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
bool isHidden () 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 54 of file kfileitem.cpp.

References KURL::addPath(), KIO::decodeFileName(), init(), isLocalFile(), 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 124 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 141 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 160 of file kfileitem.cpp.

References assign().

KFileItem::~KFileItem  )  [virtual]
 

Destructs the KFileItem.

Extra data set via setExtraData() is not deleted. Definition at line 166 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 230 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 250 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(), KFileTreeViewItem::path(), 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 256 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 262 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 759 of file kfileitem.cpp.

References 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(), init(), 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 355 of file kfileitem.cpp.

References KURL::path(), and user().

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

QString KFileItem::group  )  const
 

Returns the group of the file.

Returns:
the file's group
Definition at line 370 of file kfileitem.cpp.

References group(), and KURL::path().

Referenced by getToolTipText(), group(), 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 530 of file kfileitem.cpp.

References endl(), and 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 501 of file kfileitem.cpp.

References KURL::path().

Referenced by overlays().

bool KFileItem::isHidden  )  const
 

Checks whether the file is hidden.

Returns:
true if the file is hidden.
Definition at line 522 of file kfileitem.cpp.

References KURL::fileName(), and KURL::isEmpty().

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 268 of file kfileitem.cpp.

References KURL::path().

Referenced by getStatusBarInfo(), getToolTipText(), 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 289 of file kfileitem.cpp.

References 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 311 of file kfileitem.cpp.

References 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 801 of file kfileitem.cpp.

References KLocale::formatDateTime(), KGlobal::locale(), 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 224 of file kfileitem.h.

Referenced by KPropsDlgPlugin::isDesktopFile(), and KFileItem().

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 231 of file kfileitem.h.

Referenced by getStatusBarInfo(), KFileListViewItem::init(), 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 240 of file kfileitem.h.

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 389 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 395 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 270 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 415 of file kfileitem.cpp.

References determineMimeType().

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 425 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 459 of file kfileitem.cpp.

References endl(), KURL::fileName(), KMimeType::findByURL(), kdWarning(), KMimeType::mimeType(), overlays(), KURL::path(), KURL::setPath(), and KGlobal::staticQString().

Referenced by KFileListViewItem::init(), 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 431 of file kfileitem.cpp.

References KURL::fileName(), KNFSShare::instance(), KSambaShare::instance(), KNFSShare::isDirectoryShared(), KSambaShare::isDirectoryShared(), isHidden(), isReadable(), and KURL::path().

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 565 of file kfileitem.cpp.

References determineMimeType(), KIO::filesize_t, linkDest(), size(), and text().

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 604 of file kfileitem.cpp.

References KIO::convertSize(), determineMimeType(), group(), KFileMetaInfo::isEmpty(), KFileMetaInfoItem::isValid(), KFileMetaInfo::isValid(), KFileMetaInfo::item(), linkDest(), 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 540 of file kfileitem.cpp.

References 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 674 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 341 of file kfileitem.h.

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 347 of file kfileitem.h.

void KFileItem::mark  )  [inline]
 

Marks the item.

See also:
isMarked()
Definition at line 352 of file kfileitem.h.

void KFileItem::unmark  )  [inline]
 

Unmarks the item.

See also:
isMarked()
Definition at line 357 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 685 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 730 of file kfileitem.cpp.

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 738 of file kfileitem.cpp.

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 746 of file kfileitem.cpp.

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 754 of file kfileitem.cpp.

void KFileItem::setMetaInfo const KFileMetaInfo info  ) 
 

Sets the metainfo of this item to info.

Parameters:
info the new meta info
Definition at line 808 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 813 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 698 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 171 of file kfileitem.cpp.

References KIO::filesize_t, KMimeType::findByURL(), KURL::isEmpty(), KURL::isLocalFile(), mode(), 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 767 of file kfileitem.cpp.

References 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 3.3.1.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Sun Oct 17 11:29:58 2004 by doxygen 1.3.8 written by Dimitri van Heesch, © 1997-2003