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interactive-mining/interactive-mining-3rdparty.../madis/src/docs/source/_static/jsMath/plugins/spriteImageFonts.js

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JavaScript
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/*
* plugins/spriteImageFonts.js
*
* Part of the jsMath package for mathematics on the web.
*
* This file makes jsMath use single files for the image fonts
* rather than individual images for each character.
*
* ---------------------------------------------------------------------
*
* 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.
*/
if (!window.jsMath) {window.jsMath = {}}
jsMath.spriteImageFonts = {version: "1.1"};
if (!jsMath.styles) {jsMath.styles = []}
jsMath.styles['.typeset .img'] = {
position: 'relative',
display: 'inline-block',
overflow: 'hidden',
'background-repeat': 'no-repeat'
};
jsMath.styles['.typeset .img .xy'] = {
position: 'relative',
left: '0px', top: '0px'
};
// for Mozilla
jsMath.styles['.typeset .mimg'] = {position: 'relative'};
jsMath.styles['.typeset .mimg .size'] = {display: '-moz-inline-box'};
jsMath.styles['.typeset .mimg .wh'] = {
position: 'absolute',
left: '0px', top: '0px',
overflow: 'hidden'
};
jsMath.styles['.typeset .mimg .xy'] = {
position: 'relative',
left: '0px', top: '0px'
};
// for MSIE
jsMath.styles['.typeset .mimg .h'] = {
position: 'relative',
display: 'inline-block',
width: '0px'
};
/*
* Replace the TeXIMG function with one that uses the sprite fonts
*/
if (!jsMath.Box) {jsMath.Box = {}}
jsMath.Box.TeXIMG = function (font,C,size) {
var c = jsMath.TeX[font][C];
if (c.img.reload && jsMath.Img[c.img.reload][font].loaded == 1)
{delete c.img.reload; c.img.size = null}
if (c.img.size != null && c.img.size == size &&
c.img.best != null && c.img.best == jsMath.Img.best) return;
var mustScale = (jsMath.Img.scale != 1);
var id = jsMath.Img.best + size - 4;
if (id < 0) {id = 0; mustScale = 1} else
if (id >= jsMath.Img.fonts.length) {id = jsMath.Img.fonts.length-1; mustScale = 1}
var imgFont = jsMath.Img[jsMath.Img.fonts[id]][font];
if (!imgFont.loaded && jsMath.Browser.waitForImages) {
// store information so several fonts can be loaded at once
jsMath.Img.mustLoad[jsMath.Img.mustLoad.length] = [font,jsMath.Img.fonts[id]];
imgFont.loaded = -1;
}
var img = imgFont[C];
var scale = 1/jsMath.Img.w[jsMath.Img.fonts[id]];
if (id != jsMath.Img.best + size - 4) {
if (c.w != null) {scale = c.w/img[0]} else {
scale *= jsMath.Img.fonts[size]/jsMath.Img.fonts[4]
* jsMath.Img.fonts[jsMath.Img.best]/jsMath.Img.fonts[id];
}
}
// get the metrics for the character glyph
var bScale = jsMath.Browser.imgScale;
if (img[3] == null) {img[3] = 0}
var w = (img[0]-img[3])*scale; var h = img[1]*scale; var d = -img[2]*scale;
var x = img[3]-imgFont.x[C%16]; var y = img[1]-img[2]-imgFont.y[Math.floor(C/16)];
var wh; var xy; var v;
var ladjust = ""; var resize = ""; var vadjust; var wadjust;
if ((mustScale || jsMath.Controls.cookie.scaleImg) && !jsMath.Browser.operaImageFonts) {
w += 2/jsMath.em; h += 2/jsMath.em; d -= 1/jsMath.em; y += 1; x += 1; // try to adjust for rounding errors
resize = "width:"+jsMath.HTML.Em(imgFont.wh[0]*scale*bScale)+";";
wh = "width:"+jsMath.HTML.Em(w*bScale)+";height:"+jsMath.HTML.Em(h*bScale)+";";
xy = "left:"+jsMath.HTML.Em(x*scale*bScale)+";top:"+jsMath.HTML.Em(y*scale*bScale)+";";
vadjust = "vertical-align:"+jsMath.HTML.Em(d*bScale)+";";
v = jsMath.HTML.Em(h+d);
if (img[3]) {ladjust = "margin-left:"+jsMath.HTML.Em(-img[3]*scale*bScale)+";"}
} else {
if (jsMath.Browser.msieAlphaBug && jsMath.Controls.cookie.alpha) {
resize = "height:"+(imgFont.wh[1]*jsMath.Browser.imgScale)+"px;"
+ "width:"+(imgFont.wh[0]*jsMath.Browser.imgScale)+"px;";
}
wh = "width:"+img[0]+"px; height:"+img[1]+"px;";
xy = "left:"+x+"px; top:"+y+"px;";
vadjust = "vertical-align:"+(-img[2])+"px;"; v = (img[1]-img[2])+"px";
if (img[3]) {ladjust = "margin-left:"+(-img[3])+"px;"}
}
wadjust = (c.w == null || Math.abs(c.w-w) < .01)? "" : " margin-right:"+jsMath.HTML.Em(c.w-w)+';';
if (img[2] == 0 || jsMath.Browser.valignBug) {vadjust = ""}
// get the image
var URL = jsMath.Img.URL(font,jsMath.Img.fonts[id],C); var IMG;
if (jsMath.Browser.msieAlphaBug && jsMath.Controls.cookie.alpha) {
IMG = '<span class="xy" style="'+xy+'">'
+ '<img src="'+jsMath.blank+'" style="' + resize
+ 'filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='
+ "'" + URL + "', sizingMethod='scale'" + ');" />'
+ '</span>';
} else {
IMG = '<img src="'+URL+'" class="xy" style="'+xy+resize+'" />';
}
if (imgFont.loaded == -1) {IMG = ""; c.img.reload = jsMath.Img.fonts[id]}
// get the HTML for cropping the image
c.c = this.IMG(IMG,wh,vadjust,wadjust,ladjust,v,x,y,URL);
c.tclass = "normal";
c.img.bh = h+d; c.img.bd = -d;
c.img.size = size; c.img.best = jsMath.Img.best;
};
/*
* Default uses inline-box containing an image
*/
jsMath.Box.IMG = function (IMG,wh,vadjust,wadjust,ladjust,v,x,y,URL) {
return '<span class="img" style="'+wh+vadjust+wadjust+ladjust+'">'
+ IMG + '</span>' + jsMath.Browser.msieImgFontBBoxFix;
};
/*
* Opera bug in inline-block alignment forces use of background image
*/
jsMath.Box.IMG_opera = function (IMG,wh,vadjust,wadjust,ladjust,v,x,y,URL) {
var html = '<span class="img" style="background-image: url('+URL+');'
+ wh + vadjust + 'background-position: '+x+'px '+y+'px"></span>';
if (wadjust || ladjust)
{html = '<span style="'+wadjust+ladjust+'">' + html + '</span>'}
return html;
};
/*
* Mozilla's -moz-inline-box has top aligned with baseline, so adjust
*/
jsMath.Box.IMG_mozilla = function (IMG,wh,vadjust,wadjust,ladjust,v,x,y,URL) {
vadjust = "vertical-align:"+v+";";
var html = '<span class="mimg" style="'+vadjust+'">'
+ '<span class="size" style="'+wh+'"></span>'
+ '<span class="wh" style="'+wh+'">' + IMG + '</span>'
+ '</span>';
if (wadjust || ladjust)
{html = '<span style="'+wadjust+ladjust+'">' + html + '</span>'}
return html;
};
/*
* MSIE screws up vadjust on inline-box elements, so use absolute
* positioning and an extra span to set the width and height
*/
jsMath.Box.IMG_msie = function (IMG,wh,vadjust,wadjust,ladjust,v,x,y,URL) {
var html = '<span class="mimg">'
+ '<span class="h" style="height:'+v+'">'
+ '<span class="wh" style="'+wh+'">' + IMG + '</span>'
+ '</span>'
+ '<span class="img" style="'+wh+vadjust+'"></span>'
+ '</span>';
if (wadjust || ladjust) {
html = jsMath.Browser.msieSpaceFix
+ '<span style="'+wadjust+ladjust+'">' + html + '</span>';
}
return html;
};
if (!jsMath.Img) {jsMath.Img = {}}
/*
* Called by the extra-font definition files to add an image font
* into the mix (save offset data and image size)
*/
jsMath.Img.AddFont = function (size,def) {
if (!jsMath.Img[size]) {jsMath.Img[size] = {}};
for (var font in def) {
def[font].x = def[font][128]; def[font].y = def[font][129];
def[font].wh = def[font][130];
delete def[font][128]; delete def[font][129]; delete def[font][130];
}
jsMath.Add(jsMath.Img[size],def);
};
/*
* Get URL to directory for given font and size, based on the
* user's alpha/plain setting
*/
jsMath.Img.URL = function (name,size) {
if (size == null) {return this.root+name+'/font.js'}
var type = (jsMath.Controls.cookie.alpha) ? '/alpha/': '/plain/';
return this.root+name+type+size+'.png';
};
/*
* Laod the data for an image font
*/
jsMath.Img.LoadFont = function (name) {
if (jsMath.browser == 'OmniWeb' && !jsMath.Browser.hasInlineBlock) {
jsMath.noImgFonts = 1;
jsMath.Font.Check();
return;
}
if (!this.loaded) this.Init();
jsMath.Setup.Script(this.URL(name));
};
/*
* Setup for print mode
*/
jsMath.Img.Init = function () {
if ((jsMath.Controls.cookie.print || jsMath.Controls.cookie.stayhires) && !jsMath.Browser.operaImgFonts) {
jsMath.Controls.cookie.print = jsMath.Controls.cookie.stayhires;
this.factor *= 3;
if (!jsMath.Controls.isLocalCookie || !jsMath.Global.isLocal) {jsMath.Controls.SetCookie(0)}
if (jsMath.Browser.alphaPrintBug) {jsMath.Controls.cookie.alpha = 0}
}
this.loaded = 1;
jsMath.Img.root = jsMath.root + "fonts-sprite/";
jsMath.version += "-sp" + jsMath.spriteImageFonts.version;
};
if (!jsMath.Browser) {jsMath.Browser = {}}
/*
* Hook into initialization routine
*/
jsMath.Browser.Init = function () {
jsMath.browser = 'unknown';
this.TestInlineBlock();
this.TestSpanHeight();
this.TestRenameOK();
this.TestStyleChange();
this.MSIE();
this.Mozilla();
this.Opera();
this.OmniWeb();
this.Safari();
this.Konqueror();
this.ImgFontInit();
//
// Change some routines depending on the browser
//
if (this.allowAbsoluteDelim) {
jsMath.Box.DelimExtend = jsMath.Box.DelimExtendAbsolute;
jsMath.Box.Layout = jsMath.Box.LayoutAbsolute;
} else {
jsMath.Box.DelimExtend = jsMath.Box.DelimExtendRelative;
jsMath.Box.Layout = jsMath.Box.LayoutRelative;
}
if (this.separateSkips) {
jsMath.HTML.Place = jsMath.HTML.PlaceSeparateSkips;
jsMath.Typeset.prototype.Place = jsMath.Typeset.prototype.PlaceSeparateSkips;
}
},
/*
* These should be part of the regular browser
* test functions
*/
jsMath.Browser.ImgFontInit = function () {
this.msieImgFontBBoxFix = '';
if (jsMath.browser == 'Mozilla') {
if (!jsMath.Browser.VersionAtLeast("3.0")) {jsMath.Box.IMG = jsMath.Box.IMG_mozilla}
} else if (jsMath.browser == 'Opera') {
if (!jsMath.Browser.VersionAtLeast("9.50")) {
this.operaImageFonts = 1;
jsMath.Box.IMG = jsMath.Box.IMG_opera;
}
} else if (jsMath.browser == 'MSIE') {
if (jsMath.platform == 'mac') {
this.msieImgFontBBoxFix = '<span style="display:none">x</span>'
} else {
jsMath.Parser.prototype.oldTypeset = jsMath.Parser.prototype.Typeset;
jsMath.Parser.prototype.Typeset = jsMath.Parser.prototype.msieTypeset;
jsMath.Img.mustLoad = [];
this.msieImageFonts = 1;
jsMath.Controls.defaults.alpha = 0;
if (!jsMath.Controls.userSet.alpha) {jsMath.Controls.cookie.alpha = 0}
jsMath.Box.IMG = jsMath.Box.IMG_msie;
}
}
};
if (!jsMath.Parser) {jsMath.Parser = {}}
if (!jsMath.Parser.prototype) {jsMath.Parser.prototype = {}}
/*
* Handle loading of image files needed for this equation
* (avoids MSIE bug where it will request the image more
* than once if it is used more than once before it is
* loaded.)
*/
jsMath.Parser.prototype.msieTypeset = function () {
var HTML = this.oldTypeset();
if (jsMath.Img.mustLoad.length > 0) {
for (var i = 0; i < jsMath.Img.mustLoad.length; i++) {
var IMG = jsMath.Img.URL(jsMath.Img.mustLoad[i][0],jsMath.Img.mustLoad[i][1]);
jsMath.Script.WaitForImage(IMG);
jsMath.Img[jsMath.Img.mustLoad[i][1]][jsMath.Img.mustLoad[i][0]].loaded = 1;
}
jsMath.Img.mustLoad = [];
jsMath.Translate.restart = 1;
throw "restart";
}
return HTML;
};
/*
* Override the control panel calls in order to
* disable scaling in Opera.
*/
if (!jsMath.Controls) {jsMath.Controls = {}}
/*
* Add Opera calls to loading of control panel
*/
jsMath.Controls.Panel = function () {
jsMath.Translate.Cancel();
if (this.loaded) {
this.Main();
} else {
jsMath.Script.delayedLoad(jsMath.root+"jsMath-controls.html");
jsMath.Script.Push(this,"OperaInit");
}
};
/*
* Disable hi-res fonts and image scaling in Opera
*/
jsMath.Controls.OperaMain = function (init) {
if (!init) {this.OldMain()}
jsMath.Element("_resolution").disabled = true;
};
jsMath.Controls.OperaOptions = function () {
this.OldOptions();
jsMath.Element("_scaleImg").disabled = true;
jsMath.Element("_scaleImgText").className = "disabled";
};
jsMath.Controls.OperaInit = function () {
if (!jsMath.Browser.operaImageFonts) return;
this.OldMain = this.Main; this.Main = this.OperaMain;
this.OldOptions = this.Options; this.Options = this.OperaOptions;
this.OperaMain(1);
};
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