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Make msubsup one routine so that munderover can call it for moveable limits.

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This commit is contained in:
Davide P. Cervone 2015-03-05 07:59:23 -05:00
parent 8f0747965c
commit 09bdc86660
1 changed files with 31 additions and 54 deletions
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85
unpacked/jax/output/CommonHTML/jax.js
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@ -1242,14 +1242,18 @@
//
// Get the scale of the base and its limits
//
this.CHTMLgetScaleFactors(values,sub,sup);
var sscale = values.sscale;
var sscale = 1;
if (values.scriptlevel < 2) {
sscale = SCRIPTFACTOR;
if (sub) this.data[this.sub].CHTMLhandleScriptlevel(sub);
if (sup) this.data[this.sup].CHTMLhandleScriptlevel(sup);
}
//
// Get the bounding boxes and maximum width of scripts
//
var boxes = []; this.CHTMLgetBBoxes(boxes,values);
var BBOX = this.CHTML,
bbox = boxes[this.base], subbox = boxes[this.sub], supbox = boxes[this.sup];
var boxes = [], BBOX = this.CHTML;
for (var i = 0, m = this.data.length; i < m; i++) boxes[i] = this.CHTMLbboxFor(i);
var bbox = boxes[this.base], subbox = boxes[this.sub], supbox = boxes[this.sup];
BBOX.w = bbox.w; BBOX.h = bbox.h; BBOX.d = bbox.d; // modified below
//
// Get initial values for parameters
@ -1275,13 +1279,22 @@
if (!sup) {
if (sub) {
v = Math.max(v,CHTML.TEX.sub1,sscale*subbox.h-(4/5)*ex,values.subscriptshift);
this.CHTMLplaceSub(sub,subbox,v,s,BBOX,bbox.w,sscale,sup);
sub.style.verticalAlign = CHTML.Em(-v/sscale);
sub.style.paddingRight = CHTML.Em(s/sscale);
BBOX.w += sscale*(subbox.w + (subbox.L||0) + (subbox.R||0)) + s;
BBOX.h = Math.max(BBOX.h,sscale*subbox.h-v);
BBOX.d = Math.max(BBOX.d,sscale*subbox.d+v);
}
} else {
if (!sub) {
p = CHTML.TEX[(values.displaystyle ? "sup1" : (values.texprimestyle ? "sup3" : "sup2"))];
u = Math.max(u,p,sscale*supbox.d+(1/4)*ex,values.superscriptshift);
this.CHTMLplaceSuper(sup,supbox,u,s,BBOX,bbox.w,delta,sscale,sub);
sup.style.verticalAlign = CHTML.Em(u/sscale);
sup.style.paddingLeft = CHTML.Em(delta/sscale);
sup.style.paddingRight = CHTML.Em(s/sscale);
BBOX.w += sscale*(supbox.w + (supbox.L||0) + (supbox.R||0)) + s + delta;
BBOX.h = Math.max(BBOX.h,sscale*supbox.h+u);
BBOX.d = Math.max(BBOX.d,sscale*supbox.d-u);
} else {
v = Math.max(v,CHTML.TEX.sub2);
var t = CHTML.TEX.rule_thickness;
@ -1292,56 +1305,20 @@
}
u = Math.max(u,values.superscriptshift);
v = Math.max(v,values.subscriptshift);
this.CHTMLplaceSuper(sup,supbox,u,s,BBOX,bbox.w,delta,sscale,sub,subbox,v,stack);
this.CHTMLplaceSub(sub,subbox,v,s,BBOX,bbox.w,sscale,sup);
sub.style.paddingRight = CHTML.Em(s/sscale);
sup.style.paddingBottom = CHTML.Em((u+v)/sscale-supbox.d-subbox.h);
sup.style.paddingLeft = CHTML.Em(delta/sscale);
sup.style.paddingRight = CHTML.Em(s/sscale);
stack.style.verticalAlign = CHTML.Em(-v);
BBOX.w += Math.max(
sscale*(supbox.w + (supbox.L||0) + (supbox.R||0)) + s + delta,
sscale*(subbox.w + (subbox.L||0) + (subbox.R||0)) + s
);
BBOX.h = Math.max(BBOX.h,sscale*supbox.h+u,sscale*subbox.h-v);
BBOX.d = Math.max(BBOX.d,sscale*supbox.d-u,sscale*subbox.d+v);
}
}
return node;
},
//
// Compute scaling factors for the under- and over-scripts
//
CHTMLgetScaleFactors: function (values,sub,sup) {
values.sscale = 1;
if (values.scriptlevel < 2) {
values.sscale = SCRIPTFACTOR;
if (sub) this.data[this.sub].CHTMLhandleScriptlevel(sub);
if (sup) this.data[this.sup].CHTMLhandleScriptlevel(sup);
}
},
//
// Get the bounding boxes for the children
//
CHTMLgetBBoxes: function (bbox,values) {
var i, m = this.data.length;
for (i = 0; i < m; i++) bbox[i] = this.CHTMLbboxFor(i);
},
//
// Place subscript
//
CHTMLplaceSub: function (sub,subbox,v,s,BBOX,w,sscale,sup) {
if (!sup) sub.style.verticalAlign = CHTML.Em(-v/sscale);
sub.style.paddingRight = CHTML.Em(s/sscale);
BBOX.w = Math.max(BBOX.w,w+sscale*(subbox.w+(subbox.L||0)+(subbox.R||0))+s);
BBOX.h = Math.max(BBOX.h,sscale*subbox.h-v);
BBOX.d = Math.max(BBOX.d,sscale*subbox.d+v);
// ### FIXME: handle BBOX.l and BBOX.r
},
//
// Place subscript
//
CHTMLplaceSuper: function (sup,supbox,u,s,BBOX,w,delta,sscale,sub,subbox,v,stack) {
if (sub) {
sup.style.paddingBottom = CHTML.Em((u+v)/sscale-supbox.d-subbox.h);
stack.style.verticalAlign = CHTML.Em(-v);
} else {
sup.style.verticalAlign = CHTML.Em(u/sscale);
}
sup.style.paddingLeft = CHTML.Em(delta/sscale);
sup.style.paddingRight = CHTML.Em(s/sscale);
BBOX.w = Math.max(BBOX.w,w+sscale*(supbox.w+(supbox.L||0)+(supbox.R||0))+s+delta);
BBOX.h = Math.max(BBOX.h,sscale*supbox.h+u);
BBOX.d = Math.max(BBOX.d,sscale*supbox.d-u);
}
});