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falkolab/resizeToContainer.js

Created January 28, 2016 14:57
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  1. falkolab created this gist Jan 28, 2016.
    15 changes: 15 additions & 0 deletions resizeToContainer.js
    View file
    Original file line number Diff line number Diff line change
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    function resizePhoto(blob, size) {
    var measurement = require('alloy/measurement'), w, h;

    if (blob.width / blob.height >= size.width / size.height) {
    w = measurement.dpToPX(size.width);
    h = blob.height * measurement.dpToPX(size.width) / blob.width;
    } else {
    w = blob.width * measurement.dpToPX(size.height) / blob.height;
    h = measurement.dpToPX(size.height);
    }

    result = blob.imageAsResized(w, h);
    return result;
    }