Hi !
I'm developing a small application and I'd like to take full advantage of the
kioslaves technology since I discovered them. I'm coding with PyKDE4 and PyQt4.
For now, I'm trying to display a list of movie files. All the files are stored
in one location and I also have a "covers" directory in the same location to
store the movies covers.
Until I discovered the kioslaves thing, this location was local only. Now I'd
like to be able to specify a local OR remote location (like a NFS share). If I
understand well, kioslaves should allow me to that easily :)
Well, I'm using a KDirModel (+ a KDirSortFilterProxyModel subclass) with a
custom QListView to display the available movies. It works pretty well. As I
said before, I'd like to display the covers instead of the default icons. So I
overwrote the KDirSortFilterProxyModel.data(index, role) function to return the
cover. I had no problem when files were local : it was simple to build a QIcon
with the local path of the corresponding cover.
Now that the cover file can be remote, I plan to use this method to load the
movie cover (not tested yet) :
@staticmethod
def get_cover(movieName):
"""
"""
res = QIcon("icons:default_movie_cover.png")
url = KUrl.fromPath(QApplication.instance().config.get('Movies',
'movies_path'))
# as you can see, url is a KUrl that can point to a local OR remote path
(NFS share or whatever)
url.addPath("covers/{0}.jpg".format(md5Hash(movieName)))
if KIO.NetAccess.exists(url, True):
KIO.NetAccess.download(url, tmpFile)
res = QIcon(tmpFile)
KIO.NetAccess.removeTempFile(tmpFile)
return res
Is this a good solution ? I think I'm missing something because I'm still
downloading the file and, for what I understand, kioslaves should allow me to
avoid that. Is there a way to load the file and build a QIcon without
downloading it first ? What about performances if I have hundreds of files and
load them from a remote source ?
Thank you very much for your help and interest.
--
François
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