Question

对，一个背景故事。对于我的大学项目，我正在为鼓创建一个节奏老师。那么程序将做的是加载鼓符号，以及匹配鼓符号的音频文件。用户按下“播放”按钮，它播放与乐谱相匹配的短鼓节拍。到目前为止，我有一个按钮来播放加载的Wav。文件和另一个加载图像的按钮。我希望我有意义。

所以我的问题是，有没有人有这样做的功能？如，用于将图像和音频文件一起加载的按钮。如果再次按下该按钮，它将加载另一个图像和音频文件，覆盖之前加载的任何内容。我将有相当数量的图像和音频文件加载。重要的是图像必须与音频文件匹配。

同样，我有一个播放音频文件的按钮，另一个只是加载图像（我这样做是因为我是新手，而且只是学习如何做这些功能。

无论如何我会发布一个代码，它应该更有意义！对不起，如果这是一个长期阅读！我以为我会回顾一下我正在做的事情。

import wxversion
wxversion.select("2.8")
import wx
import wx.media

class MainWindow(wx.Frame):

    title = "Main Menu"

    def __init__(self, parent, id):
     wx.Frame.__init__(self,parent,id,'Window', size=(1000,700))
     panel=wx.Panel(self, -1)

     self.SetBackgroundColour(wx.Colour(100,100,100))
     self.Centre()
     self.Show()

     status=self.CreateStatusBar()

     menubar=wx.MenuBar()
     filemenu=wx.Menu()
     exitmenu = filemenu.Append(wx.NewId(),"Exit", "Exit Program")

     menubar.Append(filemenu,"File")
     self.Bind(wx.EVT_MENU, self.onExit, exitmenu)
     self.SetMenuBar(menubar)

     font1 = wx.Font(30, wx.MODERN, wx.NORMAL, wx.NORMAL, False, u'Consolas')

     Text1=wx.StaticText(panel, -1, "Rhythm Trainer", (10,15))
     Text1.SetFont(font1)
     Text1.SetForegroundColour('white')

     btn1 = wx.Button(panel, label='Basic', pos=(100,200), size=(150, 50))
     btn1.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     self.Bind(wx.EVT_BUTTON, self.newwindow, btn1)

     btn2 = wx.Button(panel, label='Advanced', pos=(100,270), size=(150, 50))
     btn2.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     btn3 = wx.Button(panel, label='Notations', pos=(100,340), size=(150, 50))
     btn3.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     btn4 = wx.Button(panel, label='Settings', pos=(100,410), size=(150, 50))
     btn4.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     btn5 = wx.Button(panel, label="Quit", pos=(820, 550), size=(150, 50))
     btn5.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.OnClick, btn5)

    def OnClick(self, event):
     self.Close()

    def OnQuitButton(self, event):
     wx.Sleep(1)   
     self.Destroy()

    def onExit(self, event):
     self.Destroy()

    def newwindow(self, event):
     secondWindow=window2(parent=None, id=-1)
     secondWindow.Show()

class window2(wx.Frame):

    title = "new Window"

    def __init__(self, parent, id):
     wx.Frame.__init__(self, parent, id, 'Window2', size=(1000,700))
     panel=wx.Panel(self, -1)

     self.SetBackgroundColour(wx.Colour(100,100,100))
     self.Centre()
     self.Show()

     status=self.CreateStatusBar()

     menubar=wx.MenuBar()
     filemenu=wx.Menu()
     exitmenu = filemenu.Append(wx.NewId(),"Exit", "Exit Program")

     menubar.Append(filemenu,"File")
     self.Bind(wx.EVT_MENU, self.onExit, exitmenu)
     self.SetMenuBar(menubar)

     font2 = wx.Font(30, wx.MODERN, wx.NORMAL, wx.NORMAL, False, u'Consolas')

     Text2=wx.StaticText(panel, -1, "Rhythm Trainer", (10,15))
     Text2.SetFont(font2)
     Text2.SetForegroundColour('white')
     self.Show(True)

     btn1 = wx.Button(panel, label="Back", pos=(820, 550), size=(150, 50))
     btn1.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.OnClick, btn1)

     btn2 = wx.Button(panel, label="Play", pos=(820, 100), size=(150, 50))
     btn2.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.onPlaySound, btn2)

     btn3 = wx.Button(panel, label="Stop", pos=(820, 150), size=(150, 50))
     btn3.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.onStopSound, btn3)

     btn4 = wx.Button(panel, label="Next", pos=(820, 200), size=(150, 50))
     btn4.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.loadImage, btn4)
     self.panel = wx.Panel(self, -1, pos=(50,50), size=(800, 200))

    def loadImage(self, event):
      image_file = 'Rock-beats.jpg'
      bmp = wx.Image(image_file, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
      wx.StaticBitmap(self.panel, -1, bmp, pos=(200, 50), size=(417, 133))



     # def onNext(self, event):
        """
        Calls the nextPicture method
        """
        #self.nextPicture()

    def onPlaySound (self, event):
      sound = wx.Sound('Test3.wav')
      sound.Play(wx.SOUND_ASYNC)

    def onStopSound(self, event):
     wx.Sound.Stop()

    def onExit(self, event):
      self.Destroy()
      wx.Sound.Stop()

    def OnClick(self, event):
      wx.Sound.Stop()
      self.Close()

if __name__=='__main__':
 app=wx.PySimpleApp()
 frame=MainWindow(parent=None,id=-1)

Unutbu的代码2.0-这是我完整的可运行代码 -

import wxversion
#wxversion.select("2.8")
import wx
import wx.media
import itertools as IT
import os

IMAGE_DIR = './'
SOUND_DIR = './'

class MainWindow(wx.Frame):

    title = "Main Menu"

    def __init__(self, parent, id):
     wx.Frame.__init__(self,parent,id,'Window', size=(1000,700))
     panel=wx.Panel(self, -1)

     self.SetBackgroundColour(wx.Colour(100,100,100))
     self.Centre()
     self.Show()

     status=self.CreateStatusBar()

     menubar=wx.MenuBar()
     filemenu=wx.Menu()
     exitmenu = filemenu.Append(wx.NewId(),"Exit", "Exit Program")

     menubar.Append(filemenu,"File")
     self.Bind(wx.EVT_MENU, self.onExit, exitmenu)
     self.SetMenuBar(menubar)

     font1 = wx.Font(30, wx.MODERN, wx.NORMAL, wx.NORMAL, False, u'Consolas')

     Text1=wx.StaticText(panel, -1, "Rhythm Trainer", (10,15))
     Text1.SetFont(font1)
     Text1.SetForegroundColour('white')

     btn1 = wx.Button(panel, label='Basic', pos=(100,200), size=(150, 50))
     btn1.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     self.Bind(wx.EVT_BUTTON, self.newwindow, btn1)

     btn2 = wx.Button(panel, label='Advanced', pos=(100,270), size=(150, 50))
     btn2.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     btn3 = wx.Button(panel, label='Notations', pos=(100,340), size=(150, 50))
     btn3.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     btn4 = wx.Button(panel, label='Settings', pos=(100,410), size=(150, 50))
     btn4.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

     btn5 = wx.Button(panel, label="Quit", pos=(820, 550), size=(150, 50))
     btn5.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.OnClick, btn5)

    def OnClick(self, event):
     self.Close()

    def OnQuitButton(self, event):
     self.Destroy()

    def onExit(self, event):
     self.Destroy()

    def newwindow(self, event):
     secondWindow=window2(parent=None, id=-1)
     secondWindow.Show()
     self.Close()

 class window2(wx.Frame):

    title = "new Window"

    def __init__(self, parent, id):
     wx.Frame.__init__(self, parent, id, 'Window2', size=(1000,700))
     panel=wx.Panel(self, -1)
     self.images = IT.cycle([filename for filename in os.listdir(IMAGE_DIR) if filename.endswith('.jpg')])
     self.image_file = None
     #self.images = IT.cycle(os.listdir(IMAGE_DIR))
     #self.image_file = next(self.images)    

     self.SetBackgroundColour(wx.Colour(100,100,100))
     self.Centre()
     self.Show()

     status=self.CreateStatusBar()

     menubar=wx.MenuBar()
     filemenu=wx.Menu()
     exitmenu = filemenu.Append(wx.NewId(),"Exit", "Exit Program")

     menubar.Append(filemenu,"File")
     self.Bind(wx.EVT_MENU, self.onExit, exitmenu)
     self.SetMenuBar(menubar)

     font2 = wx.Font(30, wx.MODERN, wx.NORMAL, wx.NORMAL, False, u'Consolas')

     Text2=wx.StaticText(panel, -1, "Rhythm Trainer", (10,15))
     Text2.SetFont(font2)
     Text2.SetForegroundColour('white')
     self.Show(True)

     btn1 = wx.Button(panel, label="Back", pos=(820, 550), size=(150, 50))
     btn1.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.OnClick, btn1)

     btn2 = wx.Button(panel, label="Play", pos=(820, 100), size=(150, 50))
     btn2.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.onPlaySound, btn2)

     btn3 = wx.Button(panel, label="Stop", pos=(820, 150), size=(150, 50))
     btn3.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.onStopSound, btn3)

     btn4 = wx.Button(panel, label="Next", pos=(820, 200), size=(150, 50))
     btn4.SetFont(wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
     self.Bind(wx.EVT_BUTTON, self.loadImage, btn4)
     self.panel = wx.Panel(self, -1, pos=(50,50),  size=(1000, 180))



    def loadImage(self, event):
      #image_file = 'Rock-beats.jpg'
      #bmp = wx.Image(image_file, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
      #wx.StaticBitmap(self.panel, -1, bmp, pos=(200, 50), size=(417, 133))
       self.image_file = next(self.images)
       image_file = os.path.join(IMAGE_DIR, self.image_file)
       bmp = wx.Image(image_file, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
       width = bmp.GetWidth()
       height = bmp.GetHeight()
       wx.StaticBitmap(self.panel, -1, bmp, pos=(200, 50), size=(width, height))
       wx.Sound.Stop()
       print(self.image_file)

     # def onNext(self, event):
     #"""
     # Calls the nextPicture method
     # """
     #self.nextPicture()

    def onPlaySound (self, event):
      #sound = wx.Sound('Test3.wav')
      #sound.Play(wx.SOUND_ASYNC)
       sound_file, ext = os.path.splitext(self.image_file)
       sound_file = os.path.join(SOUND_DIR, sound_file + '.wav')
       sound = wx.Sound(sound_file)
       sound.Play(wx.SOUND_ASYNC) 
       print(sound_file) 
       def onStopSound(self, event):
       wx.Sound.Stop()

    def onExit(self, event):
      self.Destroy()
      wx.Sound.Stop()

    def OnClick(self, event):
      wx.Sound.Stop()
      self.Close()
      mainwindow=MainWindow(parent=None, id=-1)
      mainwindow.Show()

if __name__=='__main__':
 app=wx.PySimpleApp()
 frame=MainWindow(parent=None,id=-1)
 frame.Show()
 app.MainLoop()

Answer 1

这是你可以做到的一种方式：

首先，定义定义目录的全局变量包含图像和wav文件：
```
IMAGE_DIR = '/path/to/images'
SOUND_DIR = '/path/to/sounds'
```
如果您愿意，可以使用相同的目录。我打算假设
- 所有图片都是以.jpg，
- 如果调用图像foo.jpg，则关联的wav文件为叫foo.wav。
接下来，在window2.__init__方法中定义两个新属性：
```
self.images = IT.cycle([filename for filename in os.listdir(IMAGE_DIR) if filename.endswith('.jpg')])
self.image_file = None
```
并在文件顶部导入itertools模块：
```
import itertools as IT
```
os.listdir(IMAGE_DIR)返回文件名列表。 IT.cycle next(self.images) 返回循环遍历列表 ad中的项目的iterable 无限。

os.path.join返回iterable中的项目 self.images一次一个 - 每次呼叫都不同 next。我们将在下面使用此内容。

现在，loadImage可能是这样写的：

def loadImage(self, event):
    self.image_file = next(self.images)
    image_file = os.path.join(IMAGE_DIR, self.image_file)
    bmp = wx.Image(image_file, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
    wx.StaticBitmap(self.panel, -1, bmp, pos=(200, 50), size=(417, 133))

并播放相关的wav文件：

   def onPlaySound(self, event):  
        sound_file, ext = os.path.splitext(self.image_file)
        sound_file = os.path.join(SOUND_DIR, sound_file + '.wav')
        sound = wx.Sound(sound_file)
        sound.Play(wx.SOUND_ASYNC)

由于正在使用os.path.splitext和{{3}}，因此请务必同时导入文件顶部的os模块。

以下是您使用建议的更改发布的代码：

import wxversion
wxversion.select("2.8")
import wx
import wx.media

import itertools as IT
import os

IMAGE_DIR = os.path.expanduser('~/tmp/images')
SOUND_DIR = os.path.expanduser('~/tmp/sounds')


class MainWindow(wx.Frame):

    title = "Main Menu"

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Window', size=(1000, 700))
        panel = wx.Panel(self, -1)
        self.SetBackgroundColour(wx.Colour(100, 100, 100))
        self.Centre()
        self.Show()

        status = self.CreateStatusBar()

        menubar = wx.MenuBar()
        filemenu = wx.Menu()
        exitmenu = filemenu.Append(wx.NewId(), "Exit", "Exit Program")

        menubar.Append(filemenu, "File")
        self.Bind(wx.EVT_MENU, self.onExit, exitmenu)
        self.SetMenuBar(menubar)

        font1 = wx.Font(
            30, wx.MODERN, wx.NORMAL, wx.NORMAL, False, u'Consolas')

        Text1 = wx.StaticText(panel, -1, "Rhythm Trainer", (10, 15))
        Text1.SetFont(font1)
        Text1.SetForegroundColour('white')

        btn1 = wx.Button(panel, label='Basic', pos=(100, 200), size=(150, 50))
        btn1.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

        self.Bind(wx.EVT_BUTTON, self.newwindow, btn1)

        btn2 = wx.Button(
            panel, label='Advanced', pos=(100, 270), size=(150, 50))
        btn2.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

        btn3 = wx.Button(
            panel, label='Notations', pos=(100, 340), size=(150, 50))
        btn3.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

        btn4 = wx.Button(
            panel, label='Settings', pos=(100, 410), size=(150, 50))
        btn4.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))

        btn5 = wx.Button(panel, label="Quit", pos=(820, 550), size=(150, 50))
        btn5.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
        self.Bind(wx.EVT_BUTTON, self.OnClick, btn5)

    def OnClick(self, event):
        self.Close()

    def OnQuitButton(self, event):
        wx.Sleep(1)
        self.Destroy()

    def onExit(self, event):
        self.Destroy()

    def newwindow(self, event):
        secondWindow = Window2(parent=None, id=-1)
        secondWindow.Show()
        self.Close()


class Window2(wx.Frame):

    title = "new Window"

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Window2', size=(1000, 700))
        panel = wx.Panel(self, -1)

        self.SetBackgroundColour(wx.Colour(100, 100, 100))
        self.Centre()
        self.Show()

        status = self.CreateStatusBar()

        menubar = wx.MenuBar()
        filemenu = wx.Menu()
        exitmenu = filemenu.Append(wx.NewId(), "Exit", "Exit Program")

        menubar.Append(filemenu, "File")
        self.Bind(wx.EVT_MENU, self.onExit, exitmenu)
        self.SetMenuBar(menubar)

        font2 = wx.Font(
            30, wx.MODERN, wx.NORMAL, wx.NORMAL, False, u'Consolas')

        Text2 = wx.StaticText(panel, -1, "Rhythm Trainer", (10, 15))
        Text2.SetFont(font2)
        Text2.SetForegroundColour('white')
        self.Show(True)

        btn1 = wx.Button(panel, label="Back", pos=(820, 550), size=(150, 50))
        btn1.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
        self.Bind(wx.EVT_BUTTON, self.OnClick, btn1)

        btn2 = wx.Button(panel, label="Play", pos=(820, 100), size=(150, 50))
        btn2.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
        self.Bind(wx.EVT_BUTTON, self.onPlaySound, btn2)

        btn3 = wx.Button(panel, label="Stop", pos=(820, 150), size=(150, 50))
        btn3.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
        self.Bind(wx.EVT_BUTTON, self.onStopSound, btn3)

        btn4 = wx.Button(panel, label="Next", pos=(820, 200), size=(150, 50))
        btn4.SetFont(
            wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, u'Consolas'))
        self.Bind(wx.EVT_BUTTON, self.loadImage, btn4)
        self.panel = wx.Panel(self, -1, pos=(50, 50), size=(800, 200))

        self.images = IT.cycle(
            [filename for filename in os.listdir(IMAGE_DIR)
             if any(filename.lower().endswith(ext) 
                    for ext in ('.png', '.jpg', '.jpeg'))])
        self.image_file = next(self.images)

        img = wx.EmptyImage(240,240)
        self.imageCtrl = wx.StaticBitmap(self.panel, wx.ID_ANY, 
                                         wx.BitmapFromImage(img), pos=(200, 50))

    def loadImage(self, event):
        self.image_file = next(self.images)
        print(self.image_file)
        image_file = os.path.join(IMAGE_DIR, self.image_file)
        img = wx.Image(image_file, wx.BITMAP_TYPE_ANY)
        img = img.Scale(240,240)
        # The idea of using imageCtrl.SetBitmap comes from
        # http://www.blog.pythonlibrary.org/2010/03/26/creating-a-simple-photo-viewer-with-wxpython/
        self.imageCtrl.SetBitmap(wx.BitmapFromImage(img))

    def onPlaySound(self, event):
        sound_file, ext = os.path.splitext(self.image_file)
        sound_file = os.path.join(SOUND_DIR, sound_file + '.wav')
        print(sound_file)
        sound = wx.Sound(sound_file)
        sound.Play(wx.SOUND_ASYNC)

    def onStopSound(self, event):
        wx.Sound.Stop()

    def onExit(self, event):
        self.Destroy()
        wx.Sound.Stop()

    def OnClick(self, event):
        wx.Sound.Stop()
        self.Close()

if __name__ == '__main__':
    app = wx.PySimpleApp()
    frame = MainWindow(parent=None, id=-1)
    app.MainLoop()

wxPython用于加载多个图像的按钮

1 个答案: