如何调整我当前的启动屏幕，以允许我的其他代码在后台运行? [英] How to adapt my current splash screen to allow other pieces of my code to run in the background?

问题描述

目前，我有一个初始屏幕.但是，它不能用作真正的启动屏幕-因为它会停止其余代码的执行(而不是允许它们在后台运行).

Currently I have a splash screen in place. However, it does not work as a real splash screen - as it halts the execution of the rest of the code (instead of allowing them to run in the background).

这是我程序的当前(减少的)结构，重要的位完整显示.如何调整当前的初始屏幕以实际允许程序的其余部分在后台加载?可以在python中使用吗?

This is the current (reduced) arquitecture of my program, with the important bits displayed in full. How can I adapt the splash screen currently in place to actually allow the rest of the program to load in the background? Is it possible in python?

谢谢！

import ...
(many other imports)
def ...
def ...
(many other definitions)

class VFrams(wxFrame):
    wx.Frame.__init__(self, parent, -1, _("Software"), 
                      size=(1024, 768), style=wx.DEFAULT_FRAME_STYLE)
    (a lot of code goes in here)

class MySplashScreen(wx.SplashScreen):
    def __init__(self, parent=None):
        aBitmap = wx.Image(name=VarFiles["img_splash"]).ConvertToBitmap()
        splashStyle = wx.SPLASH_CENTRE_ON_SCREEN | wx.SPLASH_TIMEOUT
        splashDuration = 5000 # ms
        wx.SplashScreen.__init__(self, aBitmap, splashStyle, splashDuration, parent)
        self.Bind(wx.EVT_CLOSE, self.CloseSplash)
        wx.Yield()
    def CloseSplash(self, evt):
        self.Hide()
        global frame
        frame = VFrame(parent=None)
        app.SetTopWindow(frame)
        frame.Show(True)
        evt.Skip()

class MyApp(wx.App):
    def OnInit(self):
        MySplash = MySplashScreen()
        MySplash.Show()
        return True

if __name__ == '__main__':
    DEBUG = viz.addText('DEBUG:', viz.SCREEN)
    DEBUG.setPosition(0, 0)
    DEBUG.fontSize(16)
    DEBUG.color(viz.BLACK)
    Start_Mainvars()        
    Start_Config()
    Start_Translation()
    Start_DB()
    Start_Themes()
    Start_Gui()
    Start_Get_Isos()
    Start_Bars()
    Start_Menus()
    Start_Event_Handlers()
    app = MyApp()
    app.MainLoop()

谢谢您的帮助，这就是我更改代码的方式(遵循提供的建议):

Thank you for all the help, this is how I changed the code (following the provided advice):

def show_splash():
    # create, show and return the splash screen
    global splash
    bitmap = wx.Image(name=VarFiles["img_splash"]).ConvertToBitmap()
    splash = wx.SplashScreen(bitmap, wx.SPLASH_CENTRE_ON_SCREEN|wx.SPLASH_NO_TIMEOUT, 0, None, -1)
    splash.Show()
    return splash

class MyApp(wx.App):
    def OnInit(self):
        global frame, splash
        splash = show_splash()
        Start_Config()
        Start_Translation()
        Start_DB()
        Start_Themes()
        Start_Gui()
        Start_Get_Isos()
        Start_Bars("GDP1POP1_20091224_gdp", "1 pork")
        Start_Menus()
        Start_Event_Handlers()
        frame = VFrame(parent=None)
        frame.Show(True)
        splash.Destroy()
        return True

if __name__ == '__main__':
    DEBUG = viz.addText('DEBUG:', viz.SCREEN)
    DEBUG.setPosition(0, 0)
    DEBUG.fontSize(16)
    DEBUG.color(viz.BLACK)
    Start_Mainvars()   
    app = MyApp()
    app.MainLoop()

推荐答案

您的代码非常混乱/复杂.无需覆盖wx.SplashScreen，也没有理由应将启动屏幕关闭事件创建主应用程序窗口.这是我启动屏幕的方法.

Your code is pretty messy/complicated. There's no need to override wx.SplashScreen and no reason your splash screen close event should be creating the main application window. Here's how I do splash screens.

import wx

def show_splash():
    # create, show and return the splash screen
    bitmap = wx.Bitmap('images/splash.png')
    splash = wx.SplashScreen(bitmap, wx.SPLASH_CENTRE_ON_SCREEN|wx.SPLASH_NO_TIMEOUT, 0, None, -1)
    splash.Show()
    return splash

def main():
    app = wx.PySimpleApp()
    splash = show_splash()

    # do processing/initialization here and create main window
    frame = MyFrame(...)
    frame.Show()

    splash.Destroy()
    app.MainLoop()

if __name__ == '__main__':
    main()

只要没有超时就尽快创建启动屏幕.继续加载并创建应用程序的主窗口.然后销毁启动画面，使其消失.显示初始屏幕不会阻止其他处理的发生.

Just create the splash screen as soon as possible with no timeout. Continue loading and create your application's main window. Then destroy the splash screen so it goes away. Showing the splash screen doesn't stop other processing from happening.

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