Added a loading splashscreen. (needs better artwork)

Cura/cura.py

@@ -73,8 +73,12 @@ def main():
 	else:
 		if len(args) > 0:
 			profile.putPreference('lastFile', ';'.join(args))
-		from gui import mainWindow
-		mainWindow.main()
+		from gui import splashScreen
+		splashScreen.showSplash(mainWindowRunCallback)
+
+def mainWindowRunCallback():
+	from gui import mainWindow
+	mainWindow.main()
 
 if __name__ == '__main__':
 	main()

Cura/gui/mainWindow.py

@@ -24,7 +24,7 @@ from util import version
 from util import sliceRun
 
 def main():
-	app = wx.App(False)
+	#app = wx.App(False)
 	if profile.getPreference('wizardDone') == 'False':
 		configWizard.configWizard()
 		profile.putPreference("wizardDone", "True")
@@ -32,7 +32,7 @@ def main():
 		simpleMode.simpleModeWindow()
 	else:
 		mainWindow()
-	app.MainLoop()
+	#app.MainLoop()
 
 class mainWindow(configBase.configWindowBase):
 	"Main user interface window"

Cura/gui/splashScreen.py

@@ -0,0 +1,36 @@
+import sys, os
+#We only need the core here, which speeds up the import. As we want to show the splashscreen ASAP.
+import wx._core
+
+def getBitmapImage(filename):
+	#The frozen executable has the script files in a zip, so we need to exit another level to get to our images.
+	if hasattr(sys, 'frozen'):
+		return wx.Bitmap(os.path.normpath(os.path.join(os.path.split(__file__)[0], "../../images", filename)))
+	else:
+		return wx.Bitmap(os.path.normpath(os.path.join(os.path.split(__file__)[0], "../images", filename)))
+
+class splashScreen(wx.SplashScreen):
+	def __init__(self, callback):
+		self.callback = callback
+		bitmap = getBitmapImage("splash.png")
+		super(splashScreen, self).__init__(bitmap, wx.SPLASH_CENTRE_ON_SCREEN, 0, None)
+		wx.CallAfter(callback)
+		wx.CallAfter(self.Destroy)
+
+def showSplash(callback):
+	app = wx.App(False)
+	splashScreen(callback)
+	app.MainLoop()
+
+def testCallback():
+	print "Callback!"
+	import time
+	time.sleep(2)
+	print "!Callback"
+
+def main():
+	showSplash(testCallback)
+
+if __name__ == u'__main__':
+	main()
+