Added ability to show and destroy message windows

fs_uae_wrapper/message.py

@@ -0,0 +1,62 @@
+"""
+Display message in separate process
+"""
+import multiprocessing as mp
+import sys
+try:
+    import tkinter as tk
+    from tkinter import ttk
+except ImportError:
+    import Tkinter as tk
+    import ttk
+
+
+class MessageGui(tk.Tk):
+    """Simple gui for displaying a message"""
+
+    def __init__(self, parent=None, msg=""):
+        tk.Tk.__init__(self, parent)
+
+        self.grid()
+        self.resizable(False, False)
+
+        self.parent = parent
+        # Display window without decorations
+        self.wm_attributes('-type', 'splash')
+
+        self.frame = ttk.Frame(self, padding=5, borderwidth=0)
+        self.frame.grid()
+        ttk.Label(self.frame, text=msg, relief="ridge", padding=10).grid()
+
+        if 'linux' in sys.platform:
+            style = ttk.Style()
+            style.theme_use('clam')
+
+    def __call__(self):
+        self.mainloop()
+
+
+class Message(object):
+    """Simple class for displaying a GUI message"""
+
+    def __init__(self, msg):
+        self.msg = msg
+        self._process = None
+
+    def show(self):
+        """Spawn new process with tkinter window with a message"""
+
+        self._process = mp.Process(target=_spawn, args=(self.msg, ))
+        self._process.start()
+
+    def close(self):
+        """Terminate the process with gui"""
+        if self._process.is_alive():
+            self._process.terminate()
+        self._process.join()
+
+
+def _spawn(msg):
+    """Spawn gui for displaying message"""
+    app = MessageGui(msg=msg)
+    app()