本文整理汇总了Python中engine.Engine.query_duration方法的典型用法代码示例。如果您正苦于以下问题：Python Engine.query_duration方法的具体用法？Python Engine.query_duration怎么用？Python Engine.query_duration使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类engine.Engine的用法示例。
在下文中一共展示了Engine.query_duration方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: Wolfgang
# 需要导入模块: from engine import Engine [as 别名]
# 或者: from engine.Engine import query_duration [as 别名]
#.........这里部分代码省略.........
treemodel.set_value(current_iter, 0, "♪")
self.queue_current_iter = current_iter
self.engine.stop()
self.uri = treemodel.get_value(current_iter, 2)
self.play()
self.previous_button.set_sensitive(False)
self.next_button.set_sensitive(False)
if self.queue_store.iter_previous(self.queue_current_iter):
self.previous_button.set_sensitive(True)
if self.queue_store.iter_next(self.queue_current_iter):
self.next_button.set_sensitive(True)
def _sliderMouseEvent(self, widget, event):
"""
We handle the mouse button clicks and movements (scrubbing) here.
This is thus called by button-press-event, button-release-event and
motion-notify-event.
This is also where seeks are triggered on click.
"""
if Gtk.get_major_version() >= 3 and Gtk.get_minor_version() < 6:
# Override the event button to use a middle-click when left-clicking
# the slider, allowing it to wark directly to the desired position.
# This behavior has been fixed in GTK 3.6.
event.button = 2
if event.type is Gdk.EventType.BUTTON_PRESS:
self._sliderGrabbed = True
elif event.type is Gdk.EventType.BUTTON_RELEASE:
self._sliderGrabbed = False
if event.type is Gdk.EventType.BUTTON_RELEASE:
target_percent = widget.get_adjustment().props.value / 100.0
duration = self.engine.query_duration()
target_position = target_percent * duration
self.engine.seek(target_position)
def _updateSliderPosition(self):
if self.is_playing and not self._sliderGrabbed:
pos = self.engine.query_position()
duration = self.engine.query_duration()
if not duration == 0: # GStreamer nonsense, occurring randomly.
print "Position is", pos, "and duration is", duration
new_slider_pos = pos / float(duration) * 100
print "\tUpdate slider position to", new_slider_pos
self.time_slider.get_adjustment().props.value = new_slider_pos
return True
def quit(self, unused_window=None, unused_event=None):
Gtk.main_quit
exit(0)
"""
Public playback methods (not callbacks)
"""
def play(self):
if self.uri is None:
# The user clicked play without selecting a track, play the 1st
self.uri = self.queue_store.get_value(self.queue_current_iter, 2)
self.queue_store.set_value(self.queue_current_iter, 0, "♪")
self.engine.play(self.uri)
self.is_playing = True
self.play_button.props.active = True
self.time_slider.set_sensitive(True)
if self.queue_store.iter_next(self.queue_current_iter):
self.next_button.set_sensitive(True)