Add a set of fonts for presence testing, each of which has a single glyph at the codepoint for a capital letter A-Z. (Bug 457821)

layout/reftests/fonts/mark-generate.py

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+#!/usr/bin/python
+# vim: set shiftwidth=4 tabstop=8 autoindent expandtab:
+# ***** BEGIN LICENSE BLOCK *****
+# Version: MPL 1.1/GPL 2.0/LGPL 2.1
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+# http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Original Code is mark-generate.py .
+#
+# The Initial Developer of the Original Code is the Mozilla Foundation.
+# Portions created by the Initial Developer are Copyright (C) 2008
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   L. David Baron <dbaron@dbaron.org>, Mozilla Corporation (original author)
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 2 or later (the "GPL"), or
+# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+# in which case the provisions of the GPL or the LGPL are applicable instead
+# of those above. If you wish to allow use of your version of this file only
+# under the terms of either the GPL or the LGPL, and not to allow others to
+# use your version of this file under the terms of the MPL, indicate your
+# decision by deleting the provisions above and replace them with the notice
+# and other provisions required by the GPL or the LGPL. If you do not delete
+# the provisions above, a recipient may use your version of this file under
+# the terms of any one of the MPL, the GPL or the LGPL.
+#
+# ***** END LICENSE BLOCK *****
+
+# For general fontforge documentation, see:
+#   http://fontforge.sourceforge.net/
+# For fontforge scripting documentation, see:
+#   http://fontforge.sourceforge.net/scripting-tutorial.html
+#   http://fontforge.sourceforge.net/scripting.html
+# and most importantly:
+#   http://fontforge.sourceforge.net/python.html
+
+# To install what you need, on Ubuntu,
+#   sudo apt-get install python-fontforge
+
+import fontforge
+
+# generate a set of fonts, each with our special glyph at one codepoint,
+# and nothing else
+for codepoint in range(ord("A"), ord("D") + 1):
+    for (mark, width) in [("", 1500), ("2", 1800)]:
+        charname = chr(codepoint)
+        f = fontforge.font()
+        n = "Mark" + mark + charname
+        f.fontname = n
+        f.familyname = n
+        f.fullname = n
+        f.copyright = "Copyright (c) 2008 Mozilla Corporation"
+
+        g = f.createChar(codepoint, charname)
+        g.importOutlines("mark" + mark + "-glyph.svg")
+        g.width = width
+
+        f.generate("mark" + mark + charname + ".ttf")

layout/reftests/fonts/mark-glyph.svg

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+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewbox="0 0 1500 1000" width="1500px" height="1000px">
+  <rect x="500" y="100" height="200" width="500" fill="black" />
+  <rect x="300" y="400" height="200" width="900" fill="black" />
+  <!-- baseline defaults to being at 800 -->
+  <rect x="100" y="700" height="200" width="1300" fill="black" />
+</svg>

layout/reftests/fonts/mark2-glyph.svg

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+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewbox="0 0 1800 1000" width="1800px" height="1000px">
+  <polygon fill="black" points="100,100 100,800 1700,800 1700,100 1500,100 1500,600 300,600 300,100" />
+</svg>