Display a message on a popup

squirrelbattle/display/messagedisplay.py

@@ -0,0 +1,26 @@
+# Copyright (C) 2020 by ÿnérant, eichhornchen, nicomarg, charlse
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from squirrelbattle.display.display import Box, Display
+
+
+class MessageDisplay(Display):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        self.box = Box(*args, **kwargs)
+        self.message = ""
+        self.pad = self.newpad(1, 1)
+
+    def update_message(self, msg: str) -> None:
+        self.message = msg
+
+    def display(self) -> None:
+        self.box.refresh(self.y - 1, self.x - 2,
+                         self.height + 2, self.width + 4)
+        self.box.display()
+        self.pad.erase()
+        self.addstr(self.pad, 0, 0, self.message)
+        self.refresh_pad(self.pad, 0, 0, self.y, self.x,
+                         self.height + self.y - 1,
+                         self.width + self.x - 1)