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Fix MathJax layout

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This commit is contained in:
Arne Keller 2021-02-01 19:37:56 +01:00
parent 10cd63abb4
commit 301069fe6c
1 changed files with 26 additions and 2 deletions
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28
frontend/src/mathjax-setup.js
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@ -85,7 +85,31 @@ window.MathJax = {
const OutputJax = startup.getOutputJax();
const html = mathjax.document(root, {InputJax, OutputJax});
html.render();
window.svgPanZoomFun(root.querySelector("svg"));
const svg = root.querySelector("svg");
window.svgPanZoomFun(svg);
var nodeIterator = svg.querySelectorAll("g[data-mml-node='mtr']");
for (var a of nodeIterator) {
var left = null;
var i = 0;
for (var node of a.childNodes) {
if (i == 1 || i == 3) {
i += 1;
continue;
}
var bbox = node.getBBox();
var mat = node.transform.baseVal[0];
if (mat != undefined) {
bbox.x += mat.matrix.e;
}
if (left == null) {
left = bbox.x + bbox.width;
} else {
mat.matrix.e -= bbox.x - left;
left = bbox.x + mat.matrix.e + bbox.width;
}
i += 1;
}
}
if (callback != null) {
callback(html);
}
@ -108,4 +132,4 @@ window.MathJax = {
})
}
}
};
};