# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1345314784 -7200
# Node ID 7389b1727dee3e229fdbb7fe6253ff349fe97f6b
# Parent  b5c5320def14f4f075517099bf9e78caa0b5f005
Introduced a header-writing convenience function to prevent continual
duplication of this functionality in other projects.
Moved colour-related functions from EventAggregatorSupport.

diff -r b5c5320def14 -r 7389b1727dee MoinSupport.py
--- a/MoinSupport.py	Tue Jul 17 00:42:10 2012 +0200
+++ b/MoinSupport.py	Sat Aug 18 20:33:04 2012 +0200
@@ -10,7 +10,7 @@
 
 from DateSupport import *
 from MoinMoin.Page import Page
-from MoinMoin import wikiutil
+from MoinMoin import config, wikiutil
 from StringIO import StringIO
 from shlex import shlex
 import re
@@ -241,6 +241,32 @@
     else:
         return request.env.get((prefix and prefix + "_" or "") + header_name.upper())
 
+def writeHeaders(request, mimetype, metadata, status=None):
+
+    """
+    Using the 'request', write resource headers using the given 'mimetype',
+    based on the given 'metadata'. If the optional 'status' is specified, set
+    the status header to the given value.
+    """
+
+    send_headers = get_send_headers(request)
+
+    # Define headers.
+
+    headers = ["Content-Type: %s; charset=%s" % (mimetype, config.charset)]
+
+    # Define the last modified time.
+    # NOTE: Consider using request.httpDate.
+
+    latest_timestamp = metadata.get("last-modified")
+    if latest_timestamp:
+        headers.append("Last-Modified: %s" % latest_timestamp.as_HTTP_datetime_string())
+
+    if status:
+        headers.append("Status: %s" % status)
+
+    send_headers(headers)
+
 # Content/media type and preferences support.
 
 class MediaRange:
diff -r b5c5320def14 -r 7389b1727dee README.txt
--- a/README.txt	Tue Jul 17 00:42:10 2012 +0200
+++ b/README.txt	Sat Aug 18 20:33:04 2012 +0200
@@ -72,6 +72,8 @@
     ImprovedTableParser to MoinSupport.
   * Added remote resource management from EventAggregator to
     MoinRemoteSupport.
+  * Added a header-writing function to MoinSupport.
+  * Added view-related functions from EventAggregator as ViewSupport.
 
 Release Procedures
 ------------------
diff -r b5c5320def14 -r 7389b1727dee ViewSupport.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ViewSupport.py	Sat Aug 18 20:33:04 2012 +0200
@@ -0,0 +1,27 @@
+# -*- coding: iso-8859-1 -*-
+"""
+    MoinMoin - ViewSupport library (derived from EventAggregatorSupport)
+
+    @copyright: 2008, 2009, 2010, 2011, 2012 by Paul Boddie <paul@boddie.org.uk>
+    @license: GNU GPL (v2 or later), see COPYING.txt for details.
+"""
+
+# Colour-related functions.
+
+def getColour(s):
+    colour = [0, 0, 0]
+    digit = 0
+    for c in s:
+        colour[digit] += ord(c)
+        colour[digit] = colour[digit] % 256
+        digit += 1
+        digit = digit % 3
+    return tuple(colour)
+
+def getBlackOrWhite(colour):
+    if sum(colour) / 3.0 > 127:
+        return (0, 0, 0)
+    else:
+        return (255, 255, 255)
+
+# vim: tabstop=4 expandtab shiftwidth=4