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Back ported change of dvipng parameter -bgTransparent to -bgtransparent
1 ################################################################################ 2 # WeBWorK Online Homework Delivery System 3 # Copyright © 2000-2007 The WeBWorK Project, http://openwebwork.sf.net/ 4 # $CVSHeader: webwork2/lib/WeBWorK/Constants.pm,v 1.52.4.3.2.2 2008/07/14 21:41:59 gage Exp $ 5 # 6 # This program is free software; you can redistribute it and/or modify it under 7 # the terms of either: (a) the GNU General Public License as published by the 8 # Free Software Foundation; either version 2, or (at your option) any later 9 # version, or (b) the "Artistic License" which comes with this package. 10 # 11 # This program is distributed in the hope that it will be useful, but WITHOUT 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 13 # FOR A PARTICULAR PURPOSE. See either the GNU General Public License or the 14 # Artistic License for more details. 15 ################################################################################ 16 17 package WeBWorK::Constants; 18 19 =head1 NAME 20 21 WeBWorK::Constants - provide constant values for other WeBWorK modules. 22 23 =cut 24 25 use strict; 26 use warnings; 27 28 ################################################################################ 29 # WeBWorK::Debug 30 ################################################################################ 31 32 # If true, WeBWorK::Debug will print debugging output. 33 # 34 $WeBWorK::Debug::Enabled = 0; 35 36 # If non-empty, debugging output will be sent to the file named rather than STDERR. 37 # 38 $WeBWorK::Debug::Logfile = ""; 39 40 # If defined, prevent subroutines matching the following regular expression from 41 # logging. 42 # 43 # For example, this pattern prevents the dispatch() function from logging: 44 # $WeBWorK::Debug::DenySubroutineOutput = qr/^WeBWorK::dispatch$/; 45 # 46 $WeBWorK::Debug::DenySubroutineOutput = undef; 47 48 # If defined, allow only subroutines matching the following regular expression 49 # to log. 50 # 51 # For example, this pattern allow only some function being worked on to log: 52 # $WeBWorK::Debug::AllowSubroutineOutput = qr/^WeBWorK::SomePkg::myFunc$/; 53 # 54 $WeBWorK::Debug::AllowSubroutineOutput = undef; 55 56 ################################################################################ 57 # WeBWorK::ContentGenerator::Hardcopy 58 ################################################################################ 59 60 # If true, don't delete temporary files 61 # 62 $WeBWorK::ContentGenerator::Hardcopy::PreserveTempFiles = 0; 63 64 ################################################################################ 65 # WeBWorK::PG::Local 66 ################################################################################ 67 # The maximum amount of time (in seconds) to work on a single problem. 68 # At the end of this time a timeout message is sent to the browser. 69 70 $WeBWorK::PG::Local::TIMEOUT = 60; 71 72 ################################################################################ 73 # WeBWorK::PG::ImageGenerator 74 ################################################################################ 75 76 # Arguments to pass to dvipng. This is dependant on the version of dvipng. 77 # 78 # For dvipng versions 0.x 79 # $WeBWorK::PG::ImageGenerator::DvipngArgs = "-x4000.5 -bgTransparent -Q6 -mode toshiba -D180"; 80 # For dvipng versions 1.0 to 1.5 81 # $WeBWorK::PG::ImageGenerator::DvipngArgs = "-bgTransparent -D120 -q -depth"; 82 # 83 # For dvipng versions 1.6 (and probably above) 84 # $WeBWorK::PG::ImageGenerator::DvipngArgs = "-bgtransparent -D120 -q -depth"; 85 # Note: In 1.6 and later, bgTransparent gives alpha-channel transparency while 86 # bgtransparent gives single-bit transparency. If you use alpha-channel transparency, 87 # the images will not be viewable with MSIE. bgtransparent works for version 1.5, 88 # but does not give transparent backgrounds. It does not work for version 1.2. It has not 89 # been tested with other versions. 90 # 91 $WeBWorK::PG::ImageGenerator::DvipngArgs = "-bgtransparent -D120 -q -depth"; 92 93 # If true, don't delete temporary files 94 # 95 $WeBWorK::PG::ImageGenerator::PreserveTempFiles = 0; 96 97 # TeX to prepend to equations to be processed. 98 # 99 $WeBWorK::PG::ImageGenerator::TexPreamble = <<'EOF'; 100 \documentclass[12pt]{article} 101 \nonstopmode 102 \usepackage{amsmath,amsfonts,amssymb} 103 \def\gt{>} 104 \def\lt{<} 105 \usepackage[active,textmath,displaymath]{preview} 106 \begin{document} 107 EOF 108 109 # TeX to append to equations to be processed. 110 # 111 $WeBWorK::PG::ImageGenerator::TexPostamble = <<'EOF'; 112 \end{document} 113 EOF 114 115 ################################################################################ 116 # WeBWorK::ContentGenerator::Instructor::Config 117 ################################################################################ 118 119 # Configuation data 120 # It is organized by section. The allowable types are 121 # 'text' for a text string (no quote marks allowed), 122 # 'number' for a number, 123 # 'list' for a list of text strings, 124 # 'permission' for a permission value, 125 # 'boolean' for variables which really hold 0/1 values as flags. 126 # 'checkboxlist' for variables which really hold a list of values which 127 # can be independently picked yes/no as checkboxes 128 129 $WeBWorK::ContentGenerator::Instructor::Config::ConfigValues = [ 130 ['General', 131 { var => 'courseFiles{course_info}', 132 doc => 'Name of course information file', 133 doc2 => 'The name of course information file (located in the templates directory). Its contents are displayed in the right panel next to the list of homework sets.', 134 type => 'text'}, 135 { var => 'defaultTheme', 136 doc => 'Theme (refresh page after saving changes to reveal new theme)', 137 doc2 => 'There are currently four themes (or skins) to choose from: ur, math, math2 and moodle. The theme 138 specifies a unified look and feel for the WeBWorK course web pages.', 139 values => [qw(math math2 ur moodle union)], 140 type => 'popuplist'}, 141 { var => 'sessionKeyTimeout', 142 doc => 'Inactivity time before a user is required to login again', 143 doc2 => 'Length of time, in seconds, a user has to be inactive before he is required to login again.<p> This value should be entered as a number, so as 3600 instead of 60*60 for one hour', 144 type => 'number'}, 145 { var => 'siteDefaults{timezone}', 146 doc => 'Timezone for the course', 147 doc2 => 'Some servers handle courses taking place in different timezones. If this course is not showing the correct timezone, enter the correct value here. The format consists of unix times, such as "America/New_York","America/Chicago", "America/Denver", "America/Phoenix" or "America/Los_Angeles". Complete list: <a href="http://cpan.uwinnipeg.ca/dist/DateTime-TimeZone">TimeZoneFiles</a>', 148 type => 'text'},], 149 ['Permissions', 150 { var => 'permissionLevels{login}', 151 doc => 'Allowed to login to the course', 152 type => 'permission'}, 153 { var => 'permissionLevels{change_password}', 154 doc => 'Allowed to change their password', 155 doc2 => 'Users at this level and higher are allowed to change their password. Normally guest users are not allowed to change their password.', 156 type => 'permission'}, 157 { var => 'permissionLevels{become_student}', 158 doc => 'Allowed to <em>act as</em> another user', 159 type => 'permission'}, 160 { var => 'permissionLevels{submit_feedback}', 161 doc => 'Can e-mail instructor', 162 doc2 => 'Only this permission level and higher get buttons for sending e-mail to the instructor.', 163 type => 'permission'}, 164 { var => 'permissionLevels{record_answers_when_acting_as_student}', 165 doc => 'Can submit answers for a student', 166 doc2 => 'When acting as a student, this permission level and higher can submit answers for that student.', 167 type => 'permission'}, 168 { var => 'permissionLevels{report_bugs}', 169 doc => 'Can report bugs', 170 doc2 => 'Users with at least this permission level get a link in the left panel for reporting bugs to the bug tracking system in Rochester', 171 type => 'permission'}, 172 { var => 'permissionLevels{change_email_address}', 173 doc => 'Allowed to change their e-mail address', 174 doc2 => 'Users at this level and higher are allowed to change their e-mail address. Normally guest users are not allowed to change the e-mail address since it does not make sense to send e-mail to anonymous accounts.', 175 type => 'permission'}, 176 { var => 'permissionLevels{view_answers}', 177 doc => 'Allowed to view past answers', 178 doc2 => 'These users and higher get the "Show Past Answers" button on the problem page.', 179 type => 'permission'}, 180 { var => 'permissionLevels{view_unopened_sets}', 181 doc => 'Allowed to view problems in sets which are not open yet', 182 type => 'permission'}, 183 { var => 'permissionLevels{show_correct_answers_before_answer_date}', 184 doc => 'Allowed to see the correct answers before the answer date', 185 type => 'permission'}, 186 { var => 'permissionLevels{show_solutions_before_answer_date}', 187 doc => 'Allowed to see solutions before the answer date', 188 type => 'permission'}, 189 { var => 'permissionLevels{can_show_old_answers_by_default}', 190 doc => 'Can show old answers by default', 191 doc2 => 'When viewing a problem, WeBWorK usually puts the previously submitted answer in the answer blank if it is before the due date. Below this level, old answers are never initially shown. Typically, that is the desired behaviour for guest accounts.', 192 type => 'permission'}, 193 { var => 'permissionLevels{can_always_use_show_old_answers_default}', 194 doc => 'Can always show old answers by default', 195 doc2 => 'When viewing a problem, WeBWorK usually puts the previously submitted answer in the answer blank if it is before the due date. At this level and higher, old answers are always shown (independent of the answer date).', 196 type => 'permission'}, 197 ], 198 ['PG - Problem Display/Answer Checking', 199 { var => 'pg{displayModes}', 200 doc => 'List of display modes made available to students', 201 doc2 => 'When viewing a problem, users may choose different methods of rendering 202 formulas via an options box in the left panel. Here, you can adjust what display modes are 203 listed.<p> 204 Some display modes require other software to be installed on the server. Be sure to check 205 that all display modes selected here work from your server.<p> 206 The display modes are <ul> 207 <li> plainText: shows the raw LaTeX strings for formulas. 208 <li> formattedText: formulas are passed through the external program <code>tth</code>, 209 which produces an HTML version of them. Some browsers do not display all of the fonts 210 properly. 211 <li> images: produces images using the external programs LaTeX and dvipng. 212 <li> jsMath: uses javascript to place symbols, which may come from fonts or images 213 (the choice is configurable by the end user). 214 <li> asciimath: renders formulas client side using ASCIIMathML 215 <li> LaTeXMathML: renders formulas client side using LaTeXMathML 216 </ul> 217 <p> 218 You must use at least one display mode. If you select only one, then the options box will 219 not give a choice of modes (since there will only be one active).', 220 min => 1, 221 values => ["plainText", "formattedText", "images", "jsMath", "asciimath", "LaTeXMathML"], 222 type => 'checkboxlist'}, 223 224 { var => 'pg{options}{displayMode} ', 225 doc => 'The default display mode', 226 doc2 => 'Enter one of the allowed display mode types above. See \'display modes entry\' for descriptions.', 227 min => 1, 228 type => 'text'}, 229 230 { var => 'pg{ansEvalDefaults}{useBaseTenLog}', 231 doc => 'Use log base 10 instead of base <i>e</i>', 232 doc2 => 'Set to true for log to mean base 10 log and false for log to mean natural logarithm', 233 type => 'boolean'}, 234 235 { var => 'pg{ansEvalDefaults}{useOldAnswerMacros}', 236 doc => 'Use older answer checkers', 237 doc2 => 'During summer 2005, a newer version of the answer checkers was implemented for answers which are functions and numbers. The newer checkers allow more functions in student answers, and behave better in certain cases. Some problems are specifically coded to use new (or old) answer checkers. However, for the bulk of the problems, you can choose what the default will be here. <p>Choosing <i>false</i> here means that the newer answer checkers will be used by default, and choosing <i>true</i> means that the old answer checkers will be used by default.', 238 type => 'boolean'}, 239 240 { var => 'pg{ansEvalDefaults}{defaultDisplayMatrixStyle}', 241 doc => 'Control string for displaying matricies', 242 doc2 => 'String of three characters for defining the defaults for displaying matricies. The first and last characters give the left and right delimiters of the matrix, so usually one of ([| for a left delimiter, and one of )]| for the right delimiter. It is also legal to specify "." for no delimiter. <p> The middle character indicates how to display vertical lines in a matrix (e.g., for an augmented matrix). This can be s for solid lines and d for dashed lines. While you can specify the defaults, individual problems may override these values.', 243 type => 'text'}, 244 245 { var => 'pg{ansEvalDefaults}{numRelPercentTolDefault}', 246 doc => 'Allowed error, as a percentage, for numerical comparisons', 247 doc2 => "When numerical answers are checked, most test if the student's answer 248 is close enough to the programmed answer be computing the error as a percentage of 249 the correct answer. This value controls the default for how close the student answer 250 has to be in order to be marked correct. 251 <p> 252 A value such as 0.1 means 0.1 percent error is allowed.", 253 type => 'number'}, 254 ], 255 ['E-Mail', 256 { var => 'mail{feedbackSubjectFormat}', 257 doc => 'Format for the subject line in feedback e-mails', 258 doc2 => 'When students click the <em>Email Instructor</em> button 259 to send feedback, WeBWorK fills in the subject line. Here you can set the 260 subject line. In it, you can have various bits of information filled in 261 with the following escape sequences. 262 <p> 263 <ul> 264 <li> %c = course ID 265 <li> %u = user ID 266 <li> %s = set ID 267 <li> %p = problem ID 268 <li> %x = section 269 <li> %r = recitation 270 <li> %% = literal percent sign 271 </ul>', 272 width => 45, 273 type => 'text'}, 274 { var => 'mail{feedbackVerbosity}', 275 doc => 'E-mail verbosity level', 276 doc2 => 'The e-mail verbosity level controls how much information is 277 automatically added to feedback e-mails. Levels are 278 <ol> 279 <li value="0"> send only the feedback comment and context link 280 <li value="1"> as in 0, plus user, set, problem, and PG data 281 <li value="2"> as in 1, plus the problem environment (debugging data) 282 </ol>', 283 type => 'number' 284 }, 285 { var => 'mail{allowedRecipients}', 286 doc => 'E-mail addresses which can receive e-mail from a pg problem', 287 doc2 => 'List of e-mail addresses to which e-mail can be sent by a problem. Professors need to be added to this list if questionaires are used, or other WeBWorK problems which send e-mail as part of their answer mechanism.', 288 type => 'list'}, 289 { var => 'permissionLevels{receive_feedback}', 290 doc => 'E-mail feedback from students automatically sent to this permission level and higher:', 291 doc2 => 'Users with this permssion level or greater will automatically be sent feedback from students (generated when they use the "Contact instructor" button on any problem page). In addition the feedback message will be sent to addresses listed below. To send ONLY to addresses listed below set permission level to "nobody".', 292 type => 'permission'}, 293 294 { var => 'mail{feedbackRecipients}', 295 doc => 'Additional addresses for receiving feedback e-mail.', 296 doc2 => 'By default, feeback is sent to all users above who have permission to receive feedback. Feedback is also sent to any addresses specified in this blank. Separate email address entries by commas.', 297 type => 'list'}, 298 ] 299 ]; 300 301 1;
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