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weave-scope/render
Matthias Radestock 15b605f804 make process-by-name topology show something (again)
...when 'Hide Unconnected' is selected, which is the default.

Here's the problem...

The connectedness filter looks for `is_connected` marks in the Latest
map of the nodes. The mark is added by ColorConnected, which is
invoked by ProcessRenderer. That in turn is the base renderer for
ProcessNameRenderer, which is what the process-by-name view
renders. However, the process2Names mapping does not propagate any
metadata, hence there are no `is_connected` marks on the result
nodes. Consequently they are all filtered out.

The problem was introduced in #3009, when I added the ability for
users to chose whether to show or hide unconnected
processes (previously unconnected processes were always hidden) -
looks like I failed to check that the process-by-name view was working
with the new filter. Oops.

The fix is to move the ColorConnected call from ProcessRenderer to the
higher-level renderers - ProcessWithContainerNameRenderer (which is
what the 'Processes' view renders) and ProcessNameRenderer.

This has the beneficial side effect of improving performance for other
renderers which invoke ProcessRenderer, none of which need
connectedness-coloring.

Fixes #3205
2018-06-03 07:01:40 +01:00
..
2018-04-09 13:16:40 +00:00
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2018-04-09 13:16:40 +00:00
2018-04-09 13:16:40 +00:00
2017-11-04 23:05:52 +00:00
2018-04-09 13:16:40 +00:00