# 需要导入模块: from PyQt5.QtCore import Qt [as 别名]

# 或者: from PyQt5.QtCore.Qt import DirectConnection [as 别名]

def initThumbs(self) -> None:

framesize = self.parent.videoService.framesize()

thumbsize = QSize(

VideoService.config.thumbnails['TIMELINE'].height() * (framesize.width() / framesize.height()),

VideoService.config.thumbnails['TIMELINE'].height())

positions, frametimes = [], []

thumbs = int(math.ceil((self.rect().width() - (self.offset * 2)) / thumbsize.width()))

for pos in range(thumbs):

val = QStyle.sliderValueFromPosition(self.minimum(), self.maximum(),

(thumbsize.width() * pos) - self.offset,

self.rect().width() - (self.offset * 2))

positions.append(val)

positions[0] = 1000

[frametimes.append(self.parent.delta2QTime(msec).toString(self.parent.timeformat)) for msec in positions]

class ThumbWorker(QObject):

completed = pyqtSignal(list)

def __init__(self, settings: QSettings, media: str, times: list, size: QSize):

super(ThumbWorker, self).__init__()

self.settings = settings

self.media = media

self.times = times

self.size = size

@pyqtSlot()

def generate(self):

frames = list()

[

frames.append(VideoService.captureFrame(self.settings, self.media, frame, self.size))

for frame in self.times

]

self.completed.emit(frames)

self.thumbsThread = QThread(self)

self.thumbsWorker = ThumbWorker(self.parent.settings, self.parent.currentMedia, frametimes, thumbsize)

self.thumbsWorker.moveToThread(self.thumbsThread)

self.thumbsThread.started.connect(self.parent.sliderWidget.setLoader)

self.thumbsThread.started.connect(self.thumbsWorker.generate)

self.thumbsThread.finished.connect(self.thumbsThread.deleteLater, Qt.DirectConnection)

self.thumbsWorker.completed.connect(self.buildTimeline)

self.thumbsWorker.completed.connect(self.thumbsWorker.deleteLater, Qt.DirectConnection)

self.thumbsWorker.completed.connect(self.thumbsThread.quit, Qt.DirectConnection)

self.thumbsThread.start()