我正在开始制作可定制的媒体播放器的项目，该播放器可以支持3个主要平台（Windows，Linux，Unix）。我实际上已经为这个项目在线发现了一些源代码，但我想添加像播放列表这样的功能，但不确定从哪里开始。关于如何创建播放列表的项目的任何建议？
资源：http://www.blog.pythonlibrary.org/2010/07/24/wxpython-creating-a-simple-media-player/
import os
import time
import wx
import MplayerCtrl as mpc
import wx.lib.buttons as buttons
dirName = os.path.dirname(os.path.abspath(__file__))
bitmapDir = os.path.join(dirName, 'bitmaps')
class Frame(wx.Frame):
#----------------------------------------------------------------------
def __init__(self, parent, id, title, mplayer):
wx.Frame.__init__(self, parent, id, title)
self.panel = wx.Panel(self)
sp = wx.StandardPaths.Get()
self.currentFolder = sp.GetDocumentsDir()
self.currentVolume = 50
self.create_menu()
# create sizers
mainSizer = wx.BoxSizer(wx.VERTICAL)
controlSizer = self.build_controls()
sliderSizer = wx.BoxSizer(wx.HORIZONTAL)
self.mplayer = mpc.MplayerCtrl(self.panel, -1, mplayer)
self.playbackSlider = wx.Slider(self.panel, size=wx.DefaultSize)
sliderSizer.Add(self.playbackSlider, 1, wx.ALL|wx.EXPAND, 5)
# create volume control
self.volumeCtrl = wx.Slider(self.panel)
self.volumeCtrl.SetRange(0, 100)
self.volumeCtrl.SetValue(self.currentVolume)
self.volumeCtrl.Bind(wx.EVT_SLIDER, self.on_set_volume)
controlSizer.Add(self.volumeCtrl, 0, wx.ALL, 5)
# create track counter
self.trackCounter = wx.StaticText(self.panel, label="00:00")
sliderSizer.Add(self.trackCounter, 0, wx.ALL|wx.CENTER, 5)
# set up playback timer
self.playbackTimer = wx.Timer(self)
self.Bind(wx.EVT_TIMER, self.on_update_playback)
mainSizer.Add(self.mplayer, 1, wx.ALL|wx.EXPAND, 5)
mainSizer.Add(sliderSizer, 0, wx.ALL|wx.EXPAND, 5)
mainSizer.Add(controlSizer, 0, wx.ALL|wx.CENTER, 5)
self.panel.SetSizer(mainSizer)
self.Bind(mpc.EVT_MEDIA_STARTED, self.on_media_started)
self.Bind(mpc.EVT_MEDIA_FINISHED, self.on_media_finished)
self.Bind(mpc.EVT_PROCESS_STARTED, self.on_process_started)
self.Bind(mpc.EVT_PROCESS_STOPPED, self.on_process_stopped)
self.Show()
self.panel.Layout()
#----------------------------------------------------------------------
def build_btn(self, btnDict, sizer):
""""""
bmp = btnDict['bitmap']
handler = btnDict['handler']
img = wx.Bitmap(os.path.join(bitmapDir, bmp))
btn = buttons.GenBitmapButton(self.panel, bitmap=img,
name=btnDict['name'])
btn.SetInitialSize()
btn.Bind(wx.EVT_BUTTON, handler)
sizer.Add(btn, 0, wx.LEFT, 3)
#----------------------------------------------------------------------
def build_controls(self):
"""
Builds the audio bar controls
"""
controlSizer = wx.BoxSizer(wx.HORIZONTAL)
btnData = [{'bitmap':'player_pause.png',
'handler':self.on_pause, 'name':'pause'},
{'bitmap':'player_stop.png',
'handler':self.on_stop, 'name':'stop'}]
for btn in btnData:
self.build_btn(btn, controlSizer)
return controlSizer
#----------------------------------------------------------------------
def create_menu(self):
"""
Creates a menu
"""
menubar = wx.MenuBar()
fileMenu = wx.Menu()
add_file_menu_item = fileMenu.Append(wx.NewId(), "&Add File", "Add Media File")
menubar.Append(fileMenu, '&File')
self.SetMenuBar(menubar)
self.Bind(wx.EVT_MENU, self.on_add_file, add_file_menu_item)
#----------------------------------------------------------------------
def on_add_file(self, event):
"""
Add a Movie and start playing it
"""
wildcard = "Media Files (*.*)|*.*"
dlg = wx.FileDialog(
self, message="Choose a file",
defaultDir=self.currentFolder,
defaultFile="",
wildcard=wildcard,
style=wx.OPEN | wx.CHANGE_DIR
)
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
self.currentFolder = os.path.dirname(path[0])
trackPath = '"%s"' % path.replace("\\", "/")
self.mplayer.Loadfile(trackPath)
t_len = self.mplayer.GetTimeLength()
print t_len
self.playbackSlider.SetRange(0, t_len)
self.playbackTimer.Start(100)
#----------------------------------------------------------------------
def on_media_started(self, event):
print 'Media started!'
#----------------------------------------------------------------------
def on_media_finished(self, event):
print 'Media finished!'
self.playbackTimer.Stop()
#----------------------------------------------------------------------
def on_pause(self, event):
""""""
if self.playbackTimer.IsRunning():
print "pausing..."
self.mplayer.Pause()
self.playbackTimer.Stop()
else:
print "unpausing..."
self.mplayer.Pause()
self.playbackTimer.Start()
#----------------------------------------------------------------------
def on_process_started(self, event):
print 'Process started!'
#----------------------------------------------------------------------
def on_process_stopped(self, event):
print 'Process stopped!'
#----------------------------------------------------------------------
def on_set_volume(self, event):
"""
Sets the volume of the music player
"""
self.currentVolume = self.volumeCtrl.GetValue()
self.mplayer.SetProperty("volume", self.currentVolume)
#----------------------------------------------------------------------
def on_stop(self, event):
""""""
print "stopping..."
self.mplayer.Stop()
self.playbackTimer.Stop()
#----------------------------------------------------------------------
def on_update_playback(self, event):
"""
Updates playback slider and track counter
"""
try:
offset = self.mplayer.GetTimePos()
except:
return
print offset
mod_off = str(offset)[-1]
if mod_off == '0':
print "mod_off"
offset = int(offset)
self.playbackSlider.SetValue(offset)
secsPlayed = time.strftime('%M:%S', time.gmtime(offset))
self.trackCounter.SetLabel(secsPlayed)
#----------------------------------------------------------------------
if __name__ == "__main__":
import os, sys
paths = [r'C:\MPlayer-rtm-svn-31170\mplayer.exe',
r'E:\MPlayer-rtm-svn-31170\mplayer.exe']
mplayerPath = None
for path in paths:
if os.path.exists(path):
mplayerPath = path
if not mplayerPath:
print "mplayer not found!"
sys.exit()
app = wx.App(redirect=False)
frame = Frame(None, -1, 'MediaPlayer Using MplayerCtrl', mplayerPath)
app.MainLoop()
答案 0 :(得分：0)
这实际上是我想要添加的功能。我要做的是使用ListCtrl（或者更确切地说是ObjectListView）创建一个新的框架或对话框，并使用添加/删除按钮添加和删除轨道。您可以使用您认为合适的扩展名将路径保存到纯文本文件，并从中加载ListCtrl。我希望一切都有道理。