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Grid view: Render covers in pauses during scrolling or slow scrolling

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Kovid Goyal 2013-08-08 16:43:33 +05:30
parent e5ce1ca2a4
commit ad1de3729e
1 changed files with 9 additions and 1 deletions
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10
src/calibre/gui2/library/alternate_views.py
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@ -495,16 +495,24 @@ class GridView(QListView):
def update_viewport(self): def update_viewport(self):
self.ignore_render_requests.clear() self.ignore_render_requests.clear()
self.update_timer.stop()
m = self.model() m = self.model()
for r in xrange(self.first_visible_row or 0, self.last_visible_row or (m.count() - 1)): for r in xrange(self.first_visible_row or 0, self.last_visible_row or (m.count() - 1)):
self.update(m.index(r, 0)) self.update(m.index(r, 0))
def slider_pressed(self): def slider_pressed(self):
self.ignore_render_requests.set() self.ignore_render_requests.set()
self.verticalScrollBar().valueChanged.connect(self.value_changed_during_scroll)
def slider_released(self): def slider_released(self):
self.ignore_render_requests.clear()
self.update_viewport() self.update_viewport()
self.verticalScrollBar().valueChanged.disconnect(self.value_changed_during_scroll)
def value_changed_during_scroll(self):
if self.ignore_render_requests.is_set():
self.update_timer.start()
else:
self.ignore_render_requests.set()
def wheelEvent(self, e): def wheelEvent(self, e):
self.ignore_render_requests.set() self.ignore_render_requests.set()