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Fix: Network nodes ignoring widthConstraint after hover#4154
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moppius wants to merge 3 commits intovisjs:developfrom
Open
Fix: Network nodes ignoring widthConstraint after hover#4154moppius wants to merge 3 commits intovisjs:developfrom
moppius wants to merge 3 commits intovisjs:developfrom
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This fixes labels being split along the wrong lines. It doesn't take font modifiers into account, though, so still might be wrong in some circumstances. Just less wrong than before. Fixes visjs#3928 for the most part. Arrowheads on edges can still be slightly misaligned in some cases.
Example test page for validating bug regression.
moppius
commented
Oct 11, 2018
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| this.size.labelHeight =state.height; | ||
| this.size.labelHeight = state.height; |
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This isn't vital to the bug fix, but it was an inconsistency from the coding standard that I figured I should fix, since I was editing around there anyway.
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There is an issue where the
widthConstraintvalue of a node appears to be ignored after the mouse has hovered over a node.I tracked this down to the
ctxnot being initialized correctly the second time the nodes are refreshed, leading to an incorrect font face and size being supplied to the method that splits long text strings, which causes the measurements for the calculated pixel size of the string to be entirely incorrect.This bug has been reported in a few different issues - see the discussion thread on this #3928 for my investigation and reasoning for the fix. I basically just pass the context through in another couple of places to ensure it's set before the string split is calculated.
I've added an example HTML file to validate the issue as hoverLabelSplitterEdgeCase.html in the existing test/network/ folder.
This PR fixes #3872 and fixes #3928 (although one should probably be closed as a dupe).