def start(self):
'''Starts update state.
'''
self._vertScrollBar.valueChanged.connect(self.startThumbnailGen)
self._timer.start(15)
if cfg.verbose:
utils.info('Updating Started')
def stop(self):
'''Stops update state.
'''
self._vertScrollBar.valueChanged.disconnect(self.startThumbnailGen)
self._timer.stop()
if cfg.verbose:
utils.info('Updating Completed')
def updateVisibleItems(self):
'''Refreshes the list and trys to update items icons
for thumbnails that exist.
'''
# Stop updating if all items have been processed.
if len(self._processed) == len(self._itemCache):
self.stop()
return
# Process all visible items
visibleItems = self.getVisibleItems()
for row in sorted(visibleItems.keys()):
if row not in self._processed:
item = visibleItems[row]
tp = item.data(32)
thumbnailPixmap = QtGui.QPixmap()
thumbnailPixmap.load(tp.thumbnailPath)
if not thumbnailPixmap.isNull():
# Composite background on images with alphas
if thumbnailPixmap.hasAlphaChannel():
bgBrush = QtGui.QBrush()
bgBrush.setStyle(QtCore.Qt.TexturePattern)
bgBrush.setTexture(
QtGui.QPixmap(
utils.getMariIconPath('Checker.png')))
bgPen = QtGui.QPen()
bgPen.setColor(QtCore.Qt.transparent)
bgPen.setWidth(0)
thumbnailPixmapWithBg = QtGui.QPixmap(
cfg.max_size, cfg.max_size)
thumbnailPixmapWithBg.fill(QtCore.Qt.transparent)
painter = QtGui.QPainter()
painter.begin(thumbnailPixmapWithBg)
painter.setBrush(bgBrush)
painter.setPen(bgPen)
painter.setOpacity(0.2)
painter.drawRect(
QtCore.QRectF(0.0, 0.0, float(cfg.max_size),
float(cfg.max_size)))
painter.setOpacity(1.0)
painter.drawPixmap(
(cfg.max_size / 2) - (thumbnailPixmap.width() / 2),
0, thumbnailPixmap)
painter.end()
thumbnailPixmap = thumbnailPixmapWithBg
# Set Icon
item.setIcon(QtGui.QIcon(thumbnailPixmap))
self._processed.add(row)
if cfg.verbose:
utils.info('Completed Update for %s' % tp.sourceName)
def createItems(self, tpList):
'''Create items from list of thumbnail property.
'''
self.resetAll()
if tpList:
for tp in tpList:
self.createItem(tp)
if cfg.verbose:
utils.info('Found %d viable items' % len(tpList))
self.start()
def startThumbnailGen(self):
'''Starts updating visible qlistwidget items.
'''
visibleItems = self.getVisibleItems()
thumbnailToProcess = []
for row in sorted(visibleItems.keys()):
item = visibleItems[row]
tp = item.data(32)
if not tp.isCurrent and row not in self._seen:
thumbnailToProcess.append(tp)
self._seen.add(row)
# Start conversion thread
if thumbnailToProcess:
core.startConvert(thumbnailToProcess)
if cfg.verbose:
utils.info('Processing %d items' % len(thumbnailToProcess))