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Simplify output when SVG output extends beyond the top or bottom of the bounding box (makes the SVG entirely self-contained for MathJax-node output). Issue mathjax/MathJax-node#18.

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This commit is contained in:
Davide P. Cervone 2014-09-03 13:13:10 -04:00
parent 4a4d88c26f
commit a4c6eb6753
1 changed files with 5 additions and 10 deletions
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15
unpacked/jax/output/SVG/jax.js
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@ -2038,7 +2038,7 @@
var style = svg.element.style; var style = svg.element.style;
svg.element.setAttribute("width",SVG.Ex(l+svg.w+r)); svg.element.setAttribute("width",SVG.Ex(l+svg.w+r));
svg.element.setAttribute("height",SVG.Ex(svg.H+svg.D+2*SVG.em)); svg.element.setAttribute("height",SVG.Ex(svg.H+svg.D+2*SVG.em));
style.verticalAlign = SVG.Ex(-svg.D-3*SVG.em); // remove 2 extra pixels added below plus padding style.verticalAlign = SVG.Ex(-svg.D-2*SVG.em); // remove extra pixel added below plus padding from above
style.marginLeft = SVG.Ex(-l); style.marginRight = SVG.Ex(-r); style.marginLeft = SVG.Ex(-l); style.marginRight = SVG.Ex(-r);
svg.element.setAttribute("viewBox",SVG.Fixed(-l,1)+" "+SVG.Fixed(-svg.H-SVG.em,1)+" "+ svg.element.setAttribute("viewBox",SVG.Fixed(-l,1)+" "+SVG.Fixed(-svg.H-SVG.em,1)+" "+
SVG.Fixed(l+svg.w+r,1)+" "+SVG.Fixed(svg.H+svg.D+2*SVG.em,1)); SVG.Fixed(l+svg.w+r,1)+" "+SVG.Fixed(svg.H+svg.D+2*SVG.em,1));
@ -2046,15 +2046,10 @@
// //
// If there is extra height or depth, hide that // If there is extra height or depth, hide that
// //
if (svg.H > svg.h || svg.D > svg.d) { if (svg.H > svg.h) {style.marginTop = SVG.Ex(svg.h-svg.H)}
var frame = HTML.Element( if (svg.D > svg.d) {
"span",{style: {display:"inline-block", "white-space":"nowrap", padding:"1px 0px"}, isMathJax:true},[[ style.marginBottom = SVG.Ex(svg.d-svg.D);
"span",{style: {display:"inline-block", position:"relative", style.verticalAlign = SVG.Ex(-svg.d);
width:SVG.Ex(svg.w), height:SVG.Ex(svg.h+svg.d),
"vertical-align":SVG.Ex(-svg.d)}, isMathJax:true}]]);
frame.firstChild.appendChild(svg.element); svg.element = frame;
style.verticalAlign = style.margin = ""; style.position = "absolute";
style.bottom = SVG.Ex(svg.d-svg.D); style.left = 0;
} }
// //
// Add it to the MathJax span // Add it to the MathJax span