Add plotting to common widget pose

[AzulRadio]

Signed-off-by: youhy [email protected]

New feature

As mentioned here gazebosim/gz-sim#1571. This PR adds plotting to the common widget pose, then we can forward-port gz-sim citadel (3) to fortress (6) without a recession of features.

Summary

Should be exactly the same as before:

Test it

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

Merging #439 (72dbdd6) into ign-gui6 (0fb607b) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           ign-gui6     #439   +/-   ##
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  Coverage     66.76%   66.76%           
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  Files            39       39           
  Lines          5247     5247           
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  Hits           3503     3503           
  Misses         1744     1744           

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[jennuine]

There are some issues that need to be worked out.

This is how the plotting worked before:

This is after:

Currently, it's not able to plot any new data with the same component. For example, if plotting the z for the box and I want to add the z for the sphere nothing happens. I can only drag in a new component but the entity is incorrect (The box entity is 8 and the cylinder entity is 12 but in the legend it's showing 8).

[jennuine]

Nice work on the bug fixes, left some comments. Also, lets rename GzPlot.qml to GzPlotIcon.qml for clarity

[jennuine]

After some investigation, I figured out what mimeData needs to have (see comments). Let's add docs to this to help future developers

[chapulina]

+1 to renaming to GzPlotIcon

[jennuine]

Thank you for iterating

4b89afe I updated the optional technique to use Loader.active instead of a placeholder. I also set the default plot enabled to false and some other minor updates. Let me know if you're ok with this

As a quick test for the new optional plotting, you can use this PR gazebosim/gz-sim#1607 and replace this line in Pose3d.qml with:

gzPlotEnabled: {
  return entityType == "model"
}

Then the plotting icons will be hidden for links, etc:

[chapulina]

Works for me!