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Cover browser: Try harder to ensure that everything runs in the GUI thread

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This commit is contained in:
Kovid Goyal 2011-03-15 11:38:43 -06:00
parent ef1f808d5b
commit 7f85ac4e03
2 changed files with 19 additions and 6 deletions
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22
src/calibre/gui2/cover_flow.py
View File

@ -53,7 +53,7 @@ if pictureflow is not None:
def __init__(self, model, buffer=20):
pictureflow.FlowImages.__init__(self)
self.model = model
self.model.modelReset.connect(self.reset)
self.model.modelReset.connect(self.reset, type=Qt.QueuedConnection)
def count(self):
return self.model.count()
@ -83,6 +83,8 @@ if pictureflow is not None:
class CoverFlow(pictureflow.PictureFlow):
dc_signal = pyqtSignal()
def __init__(self, parent=None):
pictureflow.PictureFlow.__init__(self, parent,
config['cover_flow_queue_length']+1)
@ -90,6 +92,8 @@ if pictureflow is not None:
self.setFocusPolicy(Qt.WheelFocus)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding))
self.dc_signal.connect(self._data_changed,
type=Qt.QueuedConnection)
def sizeHint(self):
return self.minimumSize()
@ -101,6 +105,12 @@ if pictureflow is not None:
elif ev.delta() > 0:
self.showPrevious()
def dataChanged(self):
self.dc_signal.emit()
def _data_changed(self):
pictureflow.PictureFlow.dataChanged(self)
else:
CoverFlow = None
@ -135,8 +145,7 @@ class CoverFlowMixin(object):
self.cover_flow = None
if CoverFlow is not None:
self.cf_last_updated_at = None
self.cover_flow_sync_timer = QTimer(self)
self.cover_flow_sync_timer.timeout.connect(self.cover_flow_do_sync)
self.cover_flow_syncing_enabled = False
self.cover_flow_sync_flag = True
self.cover_flow = CoverFlow(parent=self)
self.cover_flow.currentChanged.connect(self.sync_listview_to_cf)
@ -179,14 +188,15 @@ class CoverFlowMixin(object):
self.cover_flow.setFocus(Qt.OtherFocusReason)
if CoverFlow is not None:
self.cover_flow.setCurrentSlide(self.library_view.currentIndex().row())
self.cover_flow_sync_timer.start(500)
self.cover_flow_syncing_enabled = True
QTimer.singleShot(500, self.cover_flow_do_sync)
self.library_view.setCurrentIndex(
self.library_view.currentIndex())
self.library_view.scroll_to_row(self.library_view.currentIndex().row())
def cover_browser_hidden(self):
if CoverFlow is not None:
self.cover_flow_sync_timer.stop()
self.cover_flow_syncing_enabled = False
idx = self.library_view.model().index(self.cover_flow.currentSlide(), 0)
if idx.isValid():
sm = self.library_view.selectionModel()
@ -242,6 +252,8 @@ class CoverFlowMixin(object):
except:
import traceback
traceback.print_exc()
if self.cover_flow_syncing_enabled:
QTimer.singleShot(500, self.cover_flow_do_sync)
def sync_listview_to_cf(self, row):
self.cf_last_updated_at = time.time()

3
src/calibre/gui2/pictureflow/pictureflow.cpp
View File

@ -439,7 +439,8 @@ void PictureFlowPrivate::setImages(FlowImages *images)
QObject::disconnect(slideImages, SIGNAL(dataChanged()), widget, SLOT(dataChanged()));
slideImages = images;
dataChanged();
QObject::connect(slideImages, SIGNAL(dataChanged()), widget, SLOT(dataChanged()));
QObject::connect(slideImages, SIGNAL(dataChanged()), widget, SLOT(dataChanged()),
Qt::QueuedConnection);
}
int PictureFlowPrivate::slideCount() const