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File:  [LON-CAPA] / loncom / html / adm / jsMath / plugins / noCache.js
Revision 1.1: download - view: text, annotated - select for diffs
Wed May 17 22:23:23 2006 UTC (18 years, 1 month ago) by albertel
Branches: MAIN
CVS tags: version_2_9_X, version_2_9_99_0, version_2_9_1, version_2_9_0, version_2_8_X, version_2_8_99_1, version_2_8_99_0, version_2_8_2, version_2_8_1, version_2_8_0, version_2_7_X, version_2_7_99_1, version_2_7_99_0, version_2_7_1, version_2_7_0, version_2_6_X, version_2_6_99_1, version_2_6_99_0, version_2_6_3, version_2_6_2, version_2_6_1, version_2_6_0, version_2_5_X, version_2_5_99_1, version_2_5_99_0, version_2_5_2, version_2_5_1, version_2_5_0, version_2_4_X, version_2_4_99_0, version_2_4_2, version_2_4_1, version_2_4_0, version_2_3_X, version_2_3_99_0, version_2_3_2, version_2_3_1, version_2_3_0, version_2_2_X, version_2_2_99_1, version_2_2_99_0, version_2_2_2, version_2_2_1, version_2_2_0, version_2_1_X, version_2_1_99_3, version_2_1_99_2, version_2_1_99_1, version_2_1_99_0, version_2_12_X, version_2_11_X, version_2_11_5, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, version_2_11_3_uiuc, version_2_11_3_msu, version_2_11_3, version_2_11_2_uiuc, version_2_11_2_msu, version_2_11_2_educog, version_2_11_2, version_2_11_1, version_2_11_0_RC3, version_2_11_0_RC2, version_2_11_0_RC1, version_2_11_0, version_2_10_X, version_2_10_1, version_2_10_0_RC2, version_2_10_0_RC1, version_2_10_0, loncapaMITrelate_1, language_hyphenation_merge, language_hyphenation, bz6209-base, bz6209, bz5969, bz2851, PRINT_INCOMPLETE_base, PRINT_INCOMPLETE, HEAD, GCI_3, GCI_2, GCI_1, BZ5971-printing-apage, BZ5434-fox, BZ4492-merge, BZ4492-feature_horizontal_radioresponse
- adding new jsMath 3.3 files

/*
 *  noCache.js
 *  
 *  Part of the jsMath package for mathematics on the web.
 *
 *  This file disables the equation cache that jsMath uses to
 *  store the typeset versions of TeX code so that common expressions
 *  won't need to be re-typeset.
 *
 *  ---------------------------------------------------------------------
 *
 *  Copyright 2006 by Davide P. Cervone
 * 
 *  Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

jsMath.Add(jsMath,{

  /*
   *  Get the width and height (in ems) of an HTML string
   */
  EmBoxFor: function (s) {
    var bbox = this.BBoxFor(s);
    return {w: bbox.w/this.em, h: bbox.h/this.em};
  },

  /*
   *  For browsers that don't handle sizes of italics properly (MSIE)
   */
  EmBoxForItalics: function (s) {
    var bbox = this.BBoxFor(s);
    if (s.match(/<i>|class=\"(icm|italic|igreek|iaccent)/i)) {
      bbox.w = this.BBoxFor(s+jsMath.Browser.italicString).w
                - jsMath.Browser.italicCorrection;
    }
    return {w: bbox.w/this.em, h: bbox.h/this.em};
  }
  
});

jsMath.Add(jsMath.Translate,{

  /*
   *  Typeset a string in \textstyle and return the HTML for it
   */
  TextMode: function (s) {
    var parse = jsMath.Parse(s,null,null,'T');
    parse.Atomize();
    return parse.Typeset();
  },

  /*
   *  Typeset a string in \displaystyle and return the HTML for it
   */
  DisplayMode: function (s) {
    var parse = jsMath.Parse(s,null,null,'D');
    parse.Atomize();
    return parse.Typeset();
  }

});
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