Divide by zero and speed up bug fixes

[hackapet/Adafruit_Blinka_Displayio.git] / terminalio.py

diff --git a/terminalio.py b/terminalio.py
index b312fef411d842bc9cd11ad71fa008e1e46d64ab..5a83f9f08a1726c7dc1326abe9330a8f157d3c7f 100644 (file)
--- a/terminalio.py
+++ b/terminalio.py
@@ -1,16 +1,74 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2020 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
 """
 `terminalio`
+================================================================================
+
+terminalio for Blinka
+
+**Software and Dependencies:**
+
+* Adafruit Blinka:
+  https://github.com/adafruit/Adafruit_Blinka/releases
+
+* Author(s): Melissa LeBlanc-Williams
+
 """
 
+import sys  # pylint: disable=unused-import
+import fontio
+from displayio.tilegrid import TileGrid
+
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"
 
-import sys
-import fontio
-
 FONT = fontio.BuiltinFont()
 
+# TODO: Tap into stdout to get the REPL
 # sys.stdout = open('out.dat', 'w')
+# sys.stdout.close()
 
 
-# sys.stdout.close()
+class Terminal:
+    """Displays text in a TileGrid
+
+    The terminalio module contains classes to display a character stream on a display. The built in font is available as terminalio.FONT.
+    """
+
+    def __init__(self, tilegrid, font):
+        if not isinstance(tilefrid, TileGrid):
+            raise TypeError("Expected a TileGrid")
+        self._tilegrid = tilegrid
+        if not isinstance(font, fontio.BuiltinFont):
+            raise TypeError("Expected a BuiltinFont")
+        self._font = font
+        self._cursor_x = 0
+        self._curcor_y = 0
+        self._first_row = 0
+        for x in range(self._tilegrid.width):
+            for y in range(self._tilegrid.height):
+                self._tilegrid[x, y] = 0
+
+    def write(self, buf):
+        """Write the buffer of bytes to the bus."""
+        pass