kio Library API Documentation

KIO::PreviewJob Class Reference

#include <previewjob.h>

Inheritance diagram for KIO::PreviewJob:

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Collaboration diagram for KIO::PreviewJob:

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List of all members.

Signals

void gotPreview (const KFileItem *item, const QPixmap &preview)
 Emitted when a thumbnail picture for item has been successfully retrieved.

void failed (const KFileItem *item)
 Emitted when a thumbnail for item could not be created, either because a ThumbCreator for its MIME type does not exist, or because something went wrong.


Public Member Functions

 PreviewJob (const KFileItemList &items, int width, int height, int iconSize, int iconAlpha, bool scale, bool save, const QStringList *enabledPlugins, bool deleteItems=false)
void removeItem (const KFileItem *item)
 Removes an item from preview processing.


Static Public Member Functions

QStringList availablePlugins ()
QStringList supportedMimeTypes ()

Protected Slots

virtual void slotResult (KIO::Job *job)
 Called whenever a subjob finishes.


Protected Member Functions

void getOrCreateThumbnail ()
bool statResultThumbnail ()
void createThumbnail (QString)
virtual void virtual_hook (int id, void *data)

Detailed Description

This class catches a preview (thumbnail) for files

Definition at line 36 of file previewjob.h.


Member Function Documentation

void PreviewJob::removeItem const KFileItem item  ) 
 

Removes an item from preview processing.

Use this if you passed an item to filePreview and want to delete it now.

Parameters:
item the item that should be removed from the preview queue

Definition at line 209 of file previewjob.cpp.

References QPtrList< Job >::first(), and QPtrList< Job >::removeFirst().

QStringList PreviewJob::availablePlugins  )  [static]
 

Returns:
a list of all available preview plugins. The list contains the basenames of the plugins' .desktop files (no path, no .desktop).

Definition at line 475 of file previewjob.cpp.

References QValueList::begin(), QValueList::end(), KTrader::OfferList, KTrader::query(), KIO::Job::result(), and KTrader::self().

QStringList PreviewJob::supportedMimeTypes  )  [static]
 

Returns:
a list of all supported MIME types. The list can contain entries like text/ * (without the space).

Definition at line 485 of file previewjob.cpp.

References QValueList::begin(), QValueList::end(), KTrader::OfferList, KTrader::query(), KIO::Job::result(), and KTrader::self().

Referenced by KFileIconView::showPreviews().

void KIO::PreviewJob::gotPreview const KFileItem item,
const QPixmap preview
[signal]
 

Emitted when a thumbnail picture for item has been successfully retrieved.

void KIO::PreviewJob::failed const KFileItem item  )  [signal]
 

Emitted when a thumbnail for item could not be created, either because a ThumbCreator for its MIME type does not exist, or because something went wrong.

void PreviewJob::slotResult KIO::Job job  )  [protected, virtual, slot]
 

Called whenever a subjob finishes.

Default implementation checks for errors and propagates to parent job, then calls removeSubjob. Override if you don't want subjobs errors to be propagated.

Reimplemented from KIO::Job.

Definition at line 253 of file previewjob.cpp.

References QValueList::begin(), QValueList::end(), KIO::Job::error(), QPtrList< Job >::isEmpty(), QFile::remove(), QPtrList< Job >::remove(), and KIO::UDSEntry.


The documentation for this class was generated from the following files:
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This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 13:26:01 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001