92 lines
2.1 KiB
Python
92 lines
2.1 KiB
Python
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#!/usr/bin/env python3
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import gi, threading
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk, GObject
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def time_to_str(stamp = 0):
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m = stamp // 60
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s = stamp % 60
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if m < 10:
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m = f"0{m}"
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if s < 10:
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s = f"0{s}"
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return f"{m}:{s}"
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class Slider(Gtk.Scale):
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def __init__(self, width = 256, height = 5):
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Gtk.Scale.__init__(self)
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self.set_name('Slider')
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self.set_range(0, 100)
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self.set_size_request(width, height)
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self.set_draw_value(False)
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class Timebar(Gtk.Fixed):
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__gsignals__ = {
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'seeked': (GObject.SignalFlags.RUN_FIRST, None, (float,))
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}
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def __init__(self):
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Gtk.Fixed.__init__(self)
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self.timer = None
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self.pending = False
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self._duration = 0
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self._time = 0
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self.slider = Slider(272)
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self.curr = Gtk.Label()
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self.duration = Gtk.Label()
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self.curr.set_name('text')
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self.curr.set_selectable(False)
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self.duration.set_name('text')
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self.duration.set_selectable(False)
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self.duration.set_justify(Gtk.Justification.RIGHT)
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self.duration.set_xalign(1)
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self.slider.connect('change-value', self.debounce)
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self.slider.set_sensitive(False)
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self.put(self.curr, 3, 0)
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self.put(self.duration, 233, 0)
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self.put(self.slider, 0, 12)
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def update_time(self, curr = 0, duration = 0):
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self._duration = duration
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self._time = curr
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self.slider.set_sensitive(duration > 0)
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if duration == 0:
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self.curr.set_text('')
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self.duration.set_text('')
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self.slider.set_value(0)
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else:
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progress = curr * 100 / duration
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self.curr.set_text(time_to_str(curr))
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self.duration.set_text(time_to_str(duration))
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# 优化拖拽进度时的更新
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if not self.pending:
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self.slider.set_value(progress)
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def on_timeupdate(self):
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self.pending = False
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p = self.slider.get_value()
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time = p * self._duration / 100
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self.emit('seeked', time)
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def debounce(self, slider, a, b):
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if self.timer is not None:
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self.timer.cancel()
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self.pending = True
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self.timer = threading.Timer(0.2, self.on_timeupdate)
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self.timer.start()
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