kio Library API Documentation

KFileView Class Reference

This class defines an interface to all file views. A base class for views of the KDE file selector. More...

#include <kfileview.h>

Inheritance diagram for KFileView:

KCombiView KFileDetailView KFileIconView KFilePreview List of all members.

Public Types

enum  DropOptions

Public Methods

virtual ~KFileView ()
void addItemList (const KFileItemList &list)
virtual QWidgetwidget ()=0
QWidgetwidget () const
void setCurrentItem (const QString &filename)
virtual void setCurrentItem (const KFileItem *item)=0
virtual KFileItemcurrentFileItem () const=0
virtual void clear ()
virtual void updateView (bool f=true)
virtual void removeItem (const KFileItem *item)
virtual void listingCompleted ()
QDir::SortSpec sorting () const
virtual void setSorting (QDir::SortSpec sort)
bool isReversed () const
uint count () const
uint numFiles () const
uint numDirs () const
QString viewName () const
void setViewName (const QString &name)
virtual void insertItem (KFileItem *i)
virtual void clearView ()=0
virtual void ensureItemVisible (const KFileItem *i)=0
virtual void clearSelection ()=0
virtual void selectAll ()
virtual void invertSelection ()
virtual void setSelected (const KFileItem *, bool enable)=0
virtual bool isSelected (const KFileItem *) const=0
const KFileItemList * selectedItems () const
const KFileItemList * items () const
void setOnlyDoubleClickSelectsFiles (bool enable)
bool onlyDoubleClickSelectsFiles () const
bool updateNumbers (const KFileItem *i)
virtual KActionCollectionactionCollection () const
void setDropOptions (int options)
int dropOptions ()

Static Public Methods

QString sortingKey (const QString &value, bool isDir, int sortSpec)
QString sortingKey (KIO::filesize_t value, bool isDir, int sortSpec)

Detailed Description

This class defines an interface to all file views. A base class for views of the KDE file selector.

Its intent is to allow to switch the view of the files in the selector very easily. It defines some pure virtual functions, that must be implemented to make a file view working.

Since this class is not a widget, but it's meant to be added to other widgets, its most important function is widget. This should return a pointer to the implemented widget.

Author:
Stephan Kulow <coolo@kde.org>
Version:
Id:
kfileview.h,v 1.50 2003/08/21 09:04:38 coolo Exp

Definition at line 99 of file kfileview.h.


Member Enumeration Documentation

enum KFileView::DropOptions
 

Various options for drag and drop support.

These values can be or'd together.

  • AutoOpenDirs Automatically open directory after hovering above it for a short while while dragging.
Since:
3.2

Definition at line 360 of file kfileview.h.


Constructor & Destructor Documentation

KFileView::~KFileView   [virtual]
 

Destructor.

Definition at line 83 of file kfileview.cpp.


Member Function Documentation

void KFileView::addItemList const KFileItemList &    list
 

inserts a list of items.

Definition at line 130 of file kfileview.cpp.

References QPtrListIterator< KFileItem >::current(), insertItem(), and updateNumbers().

Referenced by KDirOperator::insertNewFiles().

virtual QWidget* KFileView::widget   [pure virtual]
 

a pure virtual function to get a QWidget, that can be added to other widgets.

This function is needed to make it possible for derived classes to derive from other widgets.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by actionCollection(), KDirOperator::createView(), KDirOperator::setAcceptDrops(), KFilePreview::setFileView(), KCombiView::setRight(), KDirOperator::setView(), updateView(), and KDirOperator::viewWidget().

QWidget* KFileView::widget   const [inline]
 

### As const-method, to be fixed in 3.0

Definition at line 124 of file kfileview.h.

void KFileView::setCurrentItem const QString   filename
 

Sets filename the current item in the view, if available.

Definition at line 268 of file kfileview.cpp.

References QString::isNull(), and KFileItem::name().

Referenced by KDirOperator::insertNewFiles(), KFilePreview::setCurrentItem(), KDirOperator::setCurrentItem(), and KCombiView::setCurrentItem().

virtual void KFileView::setCurrentItem const KFileItem   item [pure virtual]
 

Reimplement this to set item the current item in the view, e.g.

the item having focus.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

virtual KFileItem* KFileView::currentFileItem   [pure virtual]
 

Returns:
the "current" KFileItem, e.g. where the cursor is. Returns 0L when there is no current item (e.g. in an empty view). Subclasses have to implement this.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by KFilePreview::currentFileItem(), and KCombiView::currentFileItem().

void KFileView::clear   [virtual]
 

Clears the view and all item lists.

Reimplemented in KCombiView, and KFilePreview.

Definition at line 156 of file kfileview.cpp.

References QPtrList< KFileItem >::clear(), and clearView().

Referenced by KFilePreview::clear(), KCombiView::clear(), and KDirOperator::pathChanged().

void KFileView::updateView bool    f = true [virtual]
 

does a repaint of the view.

The default implementation calls

 widget()->repaint(f)

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 259 of file kfileview.cpp.

References QWidget::repaint(), and widget().

Referenced by KFilePreview::updateView(), and KCombiView::updateView().

void KFileView::removeItem const KFileItem   item [virtual]
 

Removes an item from the list; has to be implemented by the view.

Call KFileView::removeItem( item ) after removing it.

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 346 of file kfileview.cpp.

References KFileItem::isDir(), and QPtrList< KFileItem >::removeRef().

Referenced by KDirOperator::itemDeleted(), KFilePreview::removeItem(), KFileIconView::removeItem(), KFileDetailView::removeItem(), and KCombiView::removeItem().

void KFileView::listingCompleted   [virtual]
 

This hook is called when all items of the currently listed directory are listed and inserted into the view, i.e.

there won't come any new items anymore.

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 360 of file kfileview.cpp.

Referenced by KFilePreview::listingCompleted(), KCombiView::listingCompleted(), and KDirOperator::updateDir().

QDir::SortSpec KFileView::sorting   const [inline]
 

Returns the sorting order of the internal list.

Newly added files are added through this sorting.

Definition at line 178 of file kfileview.h.

Referenced by KFilePreview::setFileView(), KFilePreview::setSorting(), and KCombiView::setSorting().

void KFileView::setSorting QDir::SortSpec    sort [virtual]
 

Sets the sorting order of the view.

Default is QDir::Name | QDir::IgnoreCase | QDir::DirsFirst Override this in your subclass and sort accordingly (usually by setting the sorting-key for every item and telling QIconView or QListView to sort.

A view may choose to use a different sorting than QDir::Name, Time or Size. E.g. to sort by mimetype or any possible string. Set the sorting to QDir::Unsorted for that and do the rest internally.

See also:
sortingKey

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 151 of file kfileview.cpp.

Referenced by KFilePreview::setFileView(), KFilePreview::setSorting(), KFileIconView::setSorting(), KFileDetailView::setSorting(), KDirOperator::setSorting(), KCombiView::setSorting(), and KDirOperator::setView().

bool KFileView::isReversed   const [inline]
 

Tells whether the current items are in reversed order (shortcut to sorting() & QDir::Reversed).

Definition at line 200 of file kfileview.h.

Referenced by KFileIconView::setSorting(), and KDirOperator::updateSortActions().

uint KFileView::count   const [inline]
 

Returns:
the number of dirs and files

Definition at line 207 of file kfileview.h.

uint KFileView::numFiles   const [inline]
 

Returns:
the number of files.

Definition at line 212 of file kfileview.h.

Referenced by KDirOperator::insertNewFiles(), KDirOperator::itemDeleted(), and KDirOperator::numFiles().

uint KFileView::numDirs   const [inline]
 

Returns:
the number of directories

Definition at line 217 of file kfileview.h.

Referenced by KDirOperator::insertNewFiles(), KDirOperator::itemDeleted(), and KDirOperator::numDirs().

QString KFileView::viewName   const [inline]
 

Returns:
the localized name of the view, which could be displayed somewhere, e.g. in a menu, where the user can choose between views.
See also:
setViewName

Definition at line 235 of file kfileview.h.

Referenced by KCombiView::setRight().

void KFileView::setViewName const QString   name [inline]
 

Sets the name of the view, which could be displayed somewhere.

E.g. "Image Preview".

Definition at line 241 of file kfileview.h.

Referenced by KDirOperator::createView(), and KCombiView::setRight().

void KFileView::insertItem KFileItem   i [virtual]
 

The derived view must implement this function to add the file in the widget.

Make sure to call this implementation, i.e. KFileView::insertItem( i );

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 147 of file kfileview.cpp.

Referenced by addItemList(), KFilePreview::insertItem(), KFileIconView::insertItem(), KFileDetailView::insertItem(), and KCombiView::insertItem().

virtual void KFileView::clearView   [pure virtual]
 

pure virtual function, that should be implemented to clear the view.

At this moment the list is already empty

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by clear(), KFilePreview::clearView(), and KCombiView::clearView().

virtual void KFileView::ensureItemVisible const KFileItem   i [pure virtual]
 

pure virtual function, that should be implemented to make item i visible, i.e.

by scrolling the view appropriately.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by KFilePreview::ensureItemVisible(), KCombiView::ensureItemVisible(), KDirOperator::insertNewFiles(), and KDirOperator::setCurrentItem().

virtual void KFileView::clearSelection   [pure virtual]
 

Clears any selection, unhighlights everything.

Must be implemented by the view.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by KFilePreview::clearSelection(), KCombiView::clearSelection(), KDirOperator::makeCompletion(), KDirOperator::makeDirCompletion(), and KDirOperator::setCurrentItem().

void KFileView::selectAll   [virtual]
 

Selects all items.

You may want to override this, if you can implement it more efficiently than calling setSelected() with every item. This works only in Multiselection mode of course.

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 312 of file kfileview.cpp.

References setSelected().

Referenced by KFilePreview::selectAll(), and KCombiView::selectAll().

void KFileView::invertSelection   [virtual]
 

Inverts the current selection, i.e.

selects all items, that were up to now not selected and deselects the other.

Reimplemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Definition at line 323 of file kfileview.cpp.

References isSelected(), and setSelected().

Referenced by KFilePreview::invertSelection(), and KCombiView::invertSelection().

virtual void KFileView::setSelected const KFileItem  ,
bool    enable
[pure virtual]
 

Tells the view that it should highlight the item.

This function must be implemented by the view.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by invertSelection(), selectAll(), KDirOperator::setCurrentItem(), KFilePreview::setSelected(), and KCombiView::setSelected().

virtual bool KFileView::isSelected const KFileItem   const [pure virtual]
 

Returns:
whether the given item is currently selected. Must be implemented by the view.

Implemented in KCombiView, KFileDetailView, KFileIconView, and KFilePreview.

Referenced by invertSelection(), KFilePreview::isSelected(), KDirOperator::isSelected(), KCombiView::isSelected(), KFilePreview::removeItem(), and selectedItems().

const KFileItemList * KFileView::selectedItems  
 

Returns:
all currently highlighted items.

Definition at line 296 of file kfileview.cpp.

References QPtrList< KFileItem >::append(), QPtrList< KFileItem >::clear(), and isSelected().

Referenced by KDirOperator::deleteSelected(), KDirOperator::selectedItems(), and KDirOperator::updateSelectionDependentActions().

const KFileItemList * KFileView::items  
 

Returns:
all items currently available in the current sort-order

Definition at line 283 of file kfileview.cpp.

References QPtrList< KFileItem >::append(), and QPtrList< KFileItem >::clear().

Referenced by KDirOperator::prepareCompletionObjects(), KFileIconView::setSorting(), and KFileIconView::showPreviews().

void KFileView::setOnlyDoubleClickSelectsFiles bool    enable [inline]
 

This is a KFileDialog specific hack: we want to select directories with single click, but not files.

But as a generic class, we have to be able to select files on single click as well.

This gives us the opportunity to do both.

Every view has to decide when to call select( item ) when a file was single-clicked, based on onlyDoubleClickSelectsFiles().

Definition at line 322 of file kfileview.h.

Referenced by KDirOperator::createView(), KDirOperator::setOnlyDoubleClickSelectsFiles(), and KDirOperator::setView().

bool KFileView::onlyDoubleClickSelectsFiles   const [inline]
 

Returns:
whether files (not directories) should only be select()ed by double-clicks.
See also:
setOnlyDoubleClickSelectsFiles

Definition at line 331 of file kfileview.h.

bool KFileView::updateNumbers const KFileItem   i
 

increases the number of dirs and files.

Returns:
true if the item fits the view mode

Definition at line 110 of file kfileview.cpp.

References KFileItem::isDir(), and KFileItem::isFile().

Referenced by addItemList(), and KCombiView::insertItem().

KActionCollection * KFileView::actionCollection   [virtual]
 

Returns:
the view-specific action-collection. Every view should add its actions here (if it has any) to make them available to e.g. the KDirOperator's popup-menu.

Reimplemented in KCombiView, and KFilePreview.

Definition at line 365 of file kfileview.cpp.

References widget().

Referenced by KFilePreview::actionCollection(), and KCombiView::actionCollection().

void KFileView::setDropOptions int    options
 

Specify DND options.

See DropOptions for details. All options are disabled by default.

Since:
3.2

Definition at line 397 of file kfileview.cpp.

Referenced by KDirOperator::setDropOptions(), and KCombiView::setRight().

int KFileView::dropOptions  
 

Returns the DND options in effect.

See DropOptions for details.

Since:
3.2

Definition at line 407 of file kfileview.cpp.

Referenced by KCombiView::setRight().

QString KFileView::sortingKey const QString   value,
bool    isDir,
int    sortSpec
[static]
 

This method calculates a QString from the given parameters, that is suitable for sorting with e.g.

QIconView or QListView. Their Item-classes usually have a setKey( const QString& ) method or a virtual method QString key() that is used for sorting.

Parameters:
value  Any string that should be used as sort criterion
isDir  Tells whether the key is computed for an item representing a directory (directories are usually sorted before files)
sortSpec  An ORed combination of QDir::SortSpec flags. Currently, the values IgnoreCase, Reversed and DirsFirst are taken into account.

Definition at line 380 of file kfileview.cpp.

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

Referenced by KFileIconView::setSorting().

QString KFileView::sortingKey KIO::filesize_t    value,
bool    isDir,
int    sortSpec
[static]
 

An overloaded method that takes not a QString, but a number as sort criterion.

You can use this for file-sizes or dates/times for example. If you use a time_t, you need to cast that to KIO::filesize_t because of ambiguity problems.

Definition at line 389 of file kfileview.cpp.

References KIO::number(), and QString::rightJustify().


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 3.2.0.
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