我正在尝试创建一个基本的 PyGTK 应用程序以将 MPlayer 嵌入窗口中(因为它不能很好地与我喜欢的平铺 WM 一起工作)。
到目前为止,我将把我的代码放在这篇文章的末尾,但基本上我的设置目前涉及一个包含一个 DrawingArea 的窗口,我使用“-wid”命令行选项将 MPlayer 嵌入到该窗口中。
我遇到的问题是,在调整大小时,我得到以下类型的视觉伪影(见红框内):
当配置事件发生时,我尝试在 DrawingArea 上调用 queue_draw() ,但这似乎没有效果。有人有想法么?
我的完整代码如下:(命令行用法是`$0 [ vid ]')
#!/usr/bin/env python2
import sys
import os
import subprocess
import time
import string
import gtk
import gobject
import pygtk
pygtk.require('2.0')
class MPlayer:
def __init__(self, path, draw, show_output=True):
self.path = path
self.draw = draw
self.fifo = "/tmp/%s.%d" % (os.path.basename(__file__), time.time())
# Start mplayer in draw
cmd = string.split("mplayer -slave -wid %d -input file=%s" % \
(self.draw.window.xid, self.fifo))
cmd.append(self.path)
if show_output:
process = subprocess.Popen(cmd)
else:
self.devnull = open(os.devnull)
process = subprocess.Popen(cmd, stdout=self.devnull, \
stderr=self.devnull)
self.pid = process.pid
def __enter__(self):
os.mkfifo(self.fifo)
return self
def __exit__(self, ext_type, exc_value, traceback):
if hasattr(self, "devnull"):
self.devnull.close()
os.unlink(self.fifo)
# Send cmd to mplayer via fifo
def exe(self, cmd, *args):
if not self.pid: return
full_cmd = "%s %s\n" % (cmd, string.join([str(arg) for arg in args]))
with open(self.fifo, "w+") as fifo:
fifo.write(full_cmd)
fifo.flush()
class MPlayerWrapper:
def __init__(self):
self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.draw = gtk.DrawingArea()
self.mplayer = None
self.setup_widgets()
def setup_widgets(self):
self.window.connect("destroy", gtk.main_quit)
self.window.connect("key_press_event", self.key_press_event)
self.draw.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse("black"))
self.draw.connect("configure_event", self.redraw)
self.window.add(self.draw)
self.window.show_all()
def mplayer_exe(self, cmd, *args):
if self.mplayer:
self.mplayer.exe(cmd, *args)
def key_press_event(self, widget, event, data=None):
self.mplayer_exe("key_down_event", event.keyval)
def redraw(self, draw, event, data=None):
self.draw.queue_draw()
def play(self, path):
with MPlayer(path, self.draw, True) as self.mplayer:
gobject.child_watch_add(self.mplayer.pid, gtk.main_quit)
gtk.main()
if __name__ == "__main__":
wrapper = MPlayerWrapper()
wrapper.play(sys.argv[1])