def loadDB(self):
filename = QFileDialog.getOpenFileName()
if filename:
logging.info("Loading database: %s", str(filename))
self.photoDB = PhotoDB(str(filename))
else:
return
self.loadTags()
def start(self):
self.photoDB = PhotoDB('testdb') # XXX debug value
self.loadTags()
class Controller(QObject):
def __init__(self, parent=None):
QObject.__init__(self, parent)
self.photoDB = None
self.currentTags = []
self.currentImages = []
def start(self):
self.photoDB = PhotoDB('testdb') # XXX debug value
self.loadTags()
def reset(self):
self.currentTags = []
self.filterShownTags()
def loadDB(self):
filename = QFileDialog.getOpenFileName()
if filename:
logging.info("Loading database: %s", str(filename))
self.photoDB = PhotoDB(str(filename))
else:
return
self.loadTags()
def loadTags(self):
taglist = self.photoDB.getTaglist()
logging.debug("list of tags: %s", taglist)
self.emit(SIGNAL("updateTags"), taglist)
def loadImgs(self):
# extract the IDs
tagidlist = [tagid for (tagid, _) in self.currentTags]
self.currentImages = self.photoDB.getPhotosByTagIDs(tagidlist)
# extract path from tuple
imgpathlist = [p for (_, p) in self.currentImages]
self.emit(SIGNAL('addPhotos'), imgpathlist)
def filterShownTags(self):
if not self.currentTags: # if the list is empty then show all tags
self.loadTags()
return
# extract id from tuple
imgidList = [i for (i, _) in self.currentImages]
# extract the IDs
tagfilter = [tagid for (tagid, _) in self.currentTags]
filteredtags = self.photoDB.getTagsForImages(imgidList, tagfilter)
self.emit(SIGNAL("updateTags"), filteredtags)
def tagClicked(self, tagid, tagname):
"""
This slot fires when the user clicks a tag in the list
"""
self.emit(SIGNAL('addTag'), tagid, tagname) #add tag to strip
self.currentTags.append((tagid, tagname)) #update state
self.loadImgs() #list photos according to state
self.filterShownTags() #reduce list of tags according to state
def tagRemoved(self, tagid):
"""
This slot fires when a tag is removed
"""
#remove tag with tagid from the currenttags list
self.currentTags = filter(
lambda (tid, tn): tid != tagid, self.currentTags)
self.loadImgs() #list photos according to state
self.filterShownTags() #reduce list of tags according to state
