Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
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Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#2Nice! Would be interested in how this compares to e.g. handsontable[1]. What do you think of audreyt's ethercalc[2] myliang?
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#3X Spread Sheet
XSS
probably not the best abbreviation
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#4I think a description of why canvas was used would be nice in the README. My (probably naive) view is that browsers are pretty good at table-ish layouts so it’d be great to know why canvas was chosen.
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#5Was ready to open it and mock the results of a poor technological choice but it's actually quite nice!
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#6Fun concept, but the cell text is blurry to the point of being a distraction for me, unfortunately. Is this a side effect of rendering to a canvas?
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#7I think a description of why canvas was used would be nice in the README. My (probably naive) view is that browsers are pretty good at table-ish layouts so it’d be great to know why canvas was chosen.
> My (probably naive) view is that browsers are pretty good at table-ish layouts so it’d be great to know why canvas was chosen.
The browser certainly makes this convenient... until you have more than a few thousand cells. At some point even just having the whole table loaded into the DOM is too layout and memory intensive (except on servo, sometimes).
When you try, then, to work around those limitations, continuing to use the DOM for it becomes impractical. This gets especially difficult with a spreadsheet, where row and column size is user defined, and thus a scroll offset is a sum of all of those sizes.
I've done this several times, so I eventually settled on a bucketed, run-length encoded cache of row and column sizes, but keeping this data structure current was a mess. The mess further escalated since eventually I worked on an application where the row and column sizes could change in a different chunk with a network update, and that would need to be reconciled somehow.
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#8This strongly goes against the best practices for Canvas:
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#9X Spread Sheet XSS probably not the best abbreviation
I have literally never seen spreadsheet abbreviated as SS. Spreadsheet is one word. Your comment comes off as trying too hard to be negative. Try some actual constructive feedback why don't ya?
Re: Show HN: X-spreadsheet – A JavaScript canvas spreadsheet for web
#10Fun concept, but the cell text is blurry to the point of being a distraction for me, unfortunately. Is this a side effect of rendering to a canvas?
I’ve often seen this solved by drawing a canvas at at least 2x the viewable size and then using css to force it to be smaller. This is because of retina displays. Very much like images these days. It is often a very easy thing to solve.