splash screen in wxPython

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March 30th, 2004, 05:39 PM

lentyaka

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splash screen in wxPython

Hello,

does someone know if it is possible to create 'end' splash screen in wxPython that is outside of mainloop()? By 'end' splash screen i mean a little picture that displays 'thank you' message after the user closed the app.
I have no problem displaying 'welcome' splash screen when mainloop() is called. But what to do when i need splash screen after mainloop()????

Thank you

March 31st, 2004, 12:30 AM

Grim Archon

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After the application mainloop() returns just create a new window and call it's mainloop() method:

Code:

if __name__ == '__main__':
    from wxPython.wx import *
    from wxPython.lib.anchors import LayoutAnchors
    
    class MyApp(wxApp):
        def OnInit(self):
            self.frame = wxFrame(NULL, -1, "Hello from wxPython")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            return true
        
    class SplashApp(wxApp):
        def OnInit(self):
            self.frame = wxFrame(NULL, -1, "Splash with wxPython")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            return true
    
    app = MyApp(0)
    app.MainLoop()
    app = SplashApp(0)
    app.MainLoop()

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March 31st, 2004, 02:50 PM

lentyaka

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mmm,
it causes the program to hang, i have to 'stop execution', since it fails to respond. can you explain a bit more please.

thank you for ur help

March 31st, 2004, 04:28 PM

lentyaka

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i guess what i am asking is:
is it possible to display splash screen before the mainloop is entered?

Thanx.

April 1st, 2004, 01:54 AM

Grim Archon

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Here is a modified version of my example that shows the second window closing automiatically after 5 seconds:

Code:

if __name__ == '__main__': 
    from wxPython.wx import *
    from wxPython.lib.anchors import LayoutAnchors
    
    class MyApp(wxApp): 
        def OnInit(self): 
            self.frame = wxFrame(NULL, -1, "Hello from wxPython")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            return true
        
    class SplashApp(wxApp): 
        def OnInit(self): 
            self.frame = wxFrame(NULL, -1, "Splash with wxPython")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            return true

        def end(self, evt): 
            self.frame.Destroy()
    
    app = MyApp(0)
    app.MainLoop()
    sApp = SplashApp(0)
    ID_Timer = wxNewId()
    timer = wxTimer(sApp, ID_Timer)
    EVT_TIMER(sApp, ID_Timer, sApp.end)
    timer.Start(5000)
    sApp.MainLoop()

An alternative is to handle the main app exit event, hide the main frame, pop up a dialog for a few seconds then carry on the normal exit. If I have time I'll post an example.

Grim

April 1st, 2004, 02:05 AM

Grim Archon

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Here the timeout is contained in the splash:

Code:

    class SplashApp(wxApp): 
        def OnInit(self): 
            self.frame = wxFrame(NULL, -1, "Splash with wxPython")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            self.ID_Timer = wxNewId()
            self.timer = wxTimer(self, self.ID_Timer)
            EVT_TIMER(self, self.ID_Timer, self.end)
            self.timer.Start(5000)
            return true

        def end(self, evt): 
            self.frame.Destroy()
    
    app = MyApp(0)
    app.MainLoop()
    sApp = SplashApp(0)
    sApp.MainLoop()

April 1st, 2004, 03:07 AM

Grim Archon

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This splash dialog gets called when the main app is closed. The user can wait 5 seconds or he can click the OK button.

Code:

from wxPython.wx import *
from wxPython.lib.anchors import LayoutAnchors

#This dialog shows as normal but after 5 seconds it closes automatically
class SplashDialog(wxDialog): 
    def __init__(self, fparent, ID, title='Splash', 
                 line1='Line 1', 
                 line2='Line 2', 
                 pos=wxDefaultPosition, size=wxDefaultSize, 
                 style=wxDEFAULT_DIALOG_STYLE): 
        wxDialog.__init__(self, id = 1, name = '', parent = fparent, 
              pos = wxPoint(413, 268), size = wxSize(416, 262), 
              title = title)
        sizer = wxBoxSizer(wxVERTICAL)
        label = wxStaticText(self, -1, line1)
        sizer.Add(label, 0, wxALIGN_CENTRE|wxALL, 5)
        label = wxStaticText(self, -1, line2)
        sizer.Add(label, 0, wxALIGN_CENTRE|wxALL, 5)
        btn = wxButton(self, wxID_OK, " OK ")
        btn.SetDefault()
        sizer.Add(btn, 0, wxALIGN_CENTRE|wxALL, 5)
        self.SetSizer(sizer)
        self.SetAutoLayout(True)
        sizer.Fit(self)
        #build the timeout event
        self.ID_Timer = wxNewId()
        self.timer = wxTimer(self, self.ID_Timer)
        EVT_TIMER(self, self.ID_Timer, self.end)
        self.timer.Start(5000)

    def end(self, evt): 
        #This is the event handler assigned to our timer
        self.Destroy()

if __name__ == '__main__': 

    #an appllcation created just to show the splash dialog 
    class MyApp(wxApp): 
        def OnInit(self): 
            self.frame = wxFrame(NULL, -1, "Splash Demo")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            
            #Handle the window closing event
            EVT_CLOSE(self.frame, self.appClose)
            return true
        
        def appClose(self, evt): 
            #Hide the main window then bring up the splash dialog
            self.frame.Show(false)
            dlg = SplashDialog(self.frame, -1, "Splash down!!", 
                               "Don't forget to mail me at\n me@mine.org!", 
                               "See more at www.python.org", 
                               size = wxSize(350, 200), 
                     style = wxDEFAULT_DIALOG_STYLE)
            dlg.ShowModal()
            #let wxWindows do its stuff and delete things
            evt.Skip()
    #create an instance of MyApp
    app = MyApp(0)
    #Now service the GUI events
    app.MainLoop()

Not the tidiest code but it works

Grim

Last edited by Grim Archon : April 1st, 2004 at 03:19 AM. Reason: Added a few comments

April 1st, 2004, 05:15 PM

lentyaka

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thank you
u r the best

April 2nd, 2004, 05:34 AM

Grim Archon

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Quote:

Originally Posted by lentyaka

thank you
u r the best

Just a bit of fun

Here's a version that uses HTML to render the content, I've also added extra configuration for the window (timeout, fullscreen enable, okay button display).

Code:

from wxPython.wx import *
from wxPython.html import *
'''This Module defines a wxPython Splash dialog with HTML rendering and many options.

SplashDialog(parent,ID,title,page,fullscreen,showok,timeout,pos,size,style)
    parent = parent wxApp
    ID = Frame ID (use -1)
    title = sring Title of window
    page = string HTML to be shown
    fullscreen = Boolean flag, if true show full screen
    showok = Boolean flag, if true Display OK button
    timeout = In mille seconds, if 0 don't timeout.
    pos = Location on screen (use wxSize)
    size = Size of inner HTML window (dialog shrinks to fit)
    style = wxWindows style
    #This dialog shows as normal but after 5 seconds it closes automatically

Run this module to see two examples - Application start and Application close.
'''

class SplashDialog(wxDialog): 
    
    def __init__(self, parent, ID, title='Splash', 
                 page='<html><body><b>Hello, world!</b></body></html>', 
                 fullscreen=False, 
                 showok=True, 
                 timeout=5000, 
                 pos=wxDefaultPosition, size=wxDefaultSize, 
                 style=wxDEFAULT_DIALOG_STYLE): 
        
        wxDialog.__init__(self, id = 1, name = '', parent = parent, 
              pos = pos, size = size, title = title)
        sizer = wxBoxSizer(wxVERTICAL)
        self.panel = wxHtmlWindow(self, -1, size = size)
        self.panel.SetPage(page)
        sizer.Add(self.panel, 1, wxEXPAND, 0)
        if showok: 
            btn = wxButton(self, wxID_OK, " OK ")
            btn.SetDefault()
            sizer.Add(btn, 0, wxEXPAND, 0)
        self.SetSizer(sizer)
        self.SetAutoLayout(True)
        sizer.Fit(self)
        #build the timeout event
        if timeout > 0: 
            self.ID_Timer = wxNewId()
            self.timer = wxTimer(self, self.ID_Timer)
            EVT_TIMER(self, self.ID_Timer, self.end)
            self.timer.Start(timeout)
        if fullscreen: 
            self.ShowFullScreen(true)

    def end(self, evt): 
        #This is the event handler assigned to our timer
        self.Destroy()
        
sample = '''<center><br><br>
Some content:
<pre  style="background: #EFEFEF;color: #000000; font-size: 8pt; font-weight: normal; font-style: normal; font-variant: normal;margin:0px; padding:6px; border:1px inset;  overflow:auto">        <font color="orange">def</font><font color="blue"> appClose</font>(self, evt): 
            <font color="red">#Hide the main window then bring up the splash dialog
</font>            self.frame.Show(false)
            dlg = SplashDialog(self.frame, -1, <font color="green">"Splash down!!"</font>, 
                               showok = True, 
                               fullscreen = False, 
                               timeout = 10000, 
                               size = wxSize(300, 300), 
                     style = wxDEFAULT_DIALOG_STYLE)
            dlg.ShowModal()
</pre><br>This window will not timeout</center>
<FONT SIZE=+3>
<center><a href="http://www.python.org/">>This is a link to Python's Home<</a></font><br></center>
'''
if __name__ == '__main__': 

    #an appllcation created just to show the splash dialog 
    class MyApp(wxApp): 
        def OnInit(self): 
            self.frame = wxFrame(NULL, -1, "Splash Demo")
            self.frame.Show(true)
            self.SetTopWindow(self.frame)
            #Handle the window closing event
            EVT_CLOSE(self.frame, self.appClose)
            return true
        
        def appClose(self, evt): 
            #Hide the main window then bring up the splash dialog
            self.frame.Show(false)
            dlg = SplashDialog(self.frame, -1, "Splash Down!!", 
                               showok = True, 
                               page = sample, 
                               fullscreen = True, 
                               timeout = 0, 
                               size = wxSize(300, 100), 
                     style = wxDEFAULT_DIALOG_STYLE)
            dlg.ShowModal()
            #let wxWindows do its stuff and delete things
            evt.Skip()
    #create an instance of MyApp
    app = MyApp(0)
    dlg = SplashDialog(app.frame, -1, "Splash Up!!", 
                       page = '''<center><FONT COLOR="#0000FF"><FONT SIZE=+6><br><br>Welcome</FONT></FONT></center>''', 
                       fullscreen = False, 
                       timeout = 2000, 
                       showok = False, 
                       size = wxSize(600, 100), 
             style = wxDEFAULT_DIALOG_STYLE)
    dlg.ShowModal()
    #Now service the GUI events
    app.MainLoop()

splash screen in wxPython

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