[nyx/master] Moving glyph demo into run_tests - tor-commits

13 Nov 2016

commit 3e5181d7817ac18d78852f5b4e77d1f8ae8ca14a
Author: Damian Johnson atagar@torproject.org
Date:   Fri Nov 11 18:40:13 2016 -0800
Moving glyph demo into run_tests
Our demo_glyphs.py didn't work any longer because its 'import curses' clause
    referenced the local copy rather than the python builtin. Regardless, this is
    actually a little nicer in curses.py. To run it with the following undocumented
    option...
% run_nyx --demo-glyphs
---
 nyx/curses.py      | 45 +++++++++++++++++++++++++++++++++++++
 nyx/demo_glyphs.py | 66 ------------------------------------------------------
 run_nyx            |  8 ++++++-
 3 files changed, 52 insertions(+), 67 deletions(-)

diff --git a/nyx/curses.py b/nyx/curses.py
index 112fd2e..f25839e 100644
--- a/nyx/curses.py
+++ b/nyx/curses.py
@@ -19,6 +19,7 @@ if we want Windows support in the future too.
   screen_size - provides the dimensions of our screen
   screenshot - dump of the present on-screen content
   asci_to_curses - converts terminal formatting to curses
+  demo_glyphs - renders a chart showing the ACS options
   halt - prevents further curses rendering during shutdown
is_color_supported - checks if terminal supports color output
@@ -529,6 +530,50 @@ def asci_to_curses(msg):
   return entries
+def demo_glyphs():
+  """
+  Renders a chart of all ACS options with their corresponding representation.
+  These are undocumented in the pydocs. For more information see the following
+  man page...
+
+    http://www.mkssoftware.com/docs/man5/terminfo.5.asp
+  """
+
+  def _render():
+    with raw_screen() as stdscr:
+      height, width = stdscr.getmaxyx()
+      columns = width / 30
+
+      if columns == 0:
+        return  # not wide enough to show anything
+
+      # mapping of keycodes to their ACS option names (for instance, ACS_LTEE)
+
+      acs_options = dict((v, k) for (k, v) in curses.__dict__.items() if k.startswith('ACS_'))
+
+      stdscr.addstr(0, 0, 'Curses Glyphs:', curses.A_STANDOUT)
+      x, y = 0, 2
+
+      for keycode in sorted(acs_options.keys()):
+        stdscr.addstr(y, x * 30, '%s (%i)' % (acs_options[keycode], keycode))
+        stdscr.addch(y, (x * 30) + 25, keycode)
+
+        x += 1
+
+        if x >= columns:
+          x, y = 0, y + 1
+
+          if y >= height:
+            break
+
+      stdscr.getch()  # quit on keyboard input
+
+  try:
+    start(_render, transparent_background = True, cursor = False)
+  except KeyboardInterrupt:
+    pass  # quit
+
+
 def halt():
   """
   Prevents further rendering of curses content while python's shutting down.
diff --git a/nyx/demo_glyphs.py b/nyx/demo_glyphs.py
deleted file mode 100755
index 2978873..0000000
--- a/nyx/demo_glyphs.py
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/usr/bin/env python
-# Copyright 2014-2016, Damian Johnson and The Tor Project
-# See LICENSE for licensing information
-
-"""
-Displays all ACS options with their corresponding representation. These are
-undocumented in the pydocs. For more information see the following man page:
-
-http://www.mkssoftware.com/docs/man5/terminfo.5.asp
-"""
-
-import curses
-
-
-def main():
-  try:
-    curses.wrapper(_show_glyphs)
-  except KeyboardInterrupt:
-    pass  # quit
-
-
-def _show_glyphs(stdscr):
-  """
-  Renders a chart with the ACS glyphs.
-  """
-
-  try:
-    curses.use_default_colors()  # allow semi-transparent backgrounds
-  except curses.error:
-    pass
-
-  try:
-    curses.curs_set(0)  # attempt to make the cursor invisible
-  except curses.error:
-    pass
-
-  height, width = stdscr.getmaxyx()
-  columns = width / 30
-
-  if columns == 0:
-    return  # not wide enough to show anything
-
-  # mapping of keycodes to their ACS option names (for instance, ACS_LTEE)
-
-  acs_options = dict((v, k) for (k, v) in curses.__dict__.items() if k.startswith('ACS_'))
-
-  stdscr.addstr(0, 0, 'Curses Glyphs:', curses.A_STANDOUT)
-  x, y = 0, 2
-
-  for keycode in sorted(acs_options.keys()):
-    stdscr.addstr(y, x * 30, '%s (%i)' % (acs_options[keycode], keycode))
-    stdscr.addch(y, (x * 30) + 25, keycode)
-
-    x += 1
-
-    if x >= columns:
-      x, y = 0, y + 1
-
-      if y >= height:
-        break
-
-  stdscr.getch()  # quit on keyboard input
-
-
-if __name__ == '__main__':
-  main()
diff --git a/run_nyx b/run_nyx
index 29c6be5..be9f55b 100755
--- a/run_nyx
+++ b/run_nyx
@@ -2,7 +2,13 @@
 # Copyright 2009-2016, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
+import sys
+
 import nyx
+import nyx.curses
if __name__ == '__main__':
-  nyx.main()
+  if '--demo-glyphs' in sys.argv:
+    nyx.curses.demo_glyphs()
+  else:
+    nyx.main()

    