Set Layouts via Preference Page

[MarcelduPreez]

This closes issue #181

Users are now able to set the specific layouts they want to be made available in Windowbuilder. By default all layouts are available.
Following is a screenshot of the preference page in Swing:

Following is a screenshot of the preference page in SWT:

Below the preferences are set to only include the border layout, the UI changes can be seen in the layout group on the designer palette as well as in the context menu and layout dropwdown in the Properties view.

[vogella]

@MarcelS4 new preference UI looks really good but I think you forgot to consider the new preferences for the SWT case.

Can you check and update the review?

[vogella]

The SWT use case is currently not considered

[vogella]

please rebase onto latest master in the origin

[vogella]

@MarcelS4 did you fix the SWT use case?

[MarcelduPreez]

Yes, the SWT use case should now work like the swing use case

[wimjongman]

Congratulations on your committer election, @MarcelS4! 🎉

[vogella]

Thanks, Marcel, testing it now!

[vogella]

Please combine both commits

[MarcelduPreez]

@vogella Some WB tests fail (that didnt fail before), specifically in the SWT test suite. I've tested these on other branches as well, branches that we know they worked on. Any idea what could've caused this?

It occurs in:

• org.eclipse.wb.tests.designer.swt.model.property.ResourceManagerTest
• org.eclipse.wb.tests.designer.swt.model.property.SWTResrouceManagerTest
• org.eclipse.wb.tests.designer.swt.model.property.SWTResourceManagerTest

The errors that occur are:

• Java Model Exception: Error in Java Model (code 977): /TestProject/src/test/Test.java already exists in target
• java.lang.ClassNotFoundException: org.eclipse.wb.swt.SWTResourceManager

I recall you mentioning you had issues with your SWT tests, do these issues look familiar to you?

[vogella]

@MarcelS4 I had seem them also but only if I used Eclipse during the test run. Can this also be the case for you?

[MarcelduPreez]

I didnt use eclipse during the testing but I did use my computer at the time of the tests. I'll try running them without touching my system and see if that does the trick.

[MarcelduPreez]

I've run the tests and didnt touch anything during the test runs but still no luck

[vogella]

IIRC I had this during the review of one of the library changes. If you revert both library changes do you still get the error?

[github-actions]

Unit Test Results

    4 files      4 suites   1m 11s ⏱️
  77 tests   77 ✔️ 0 💤 0 ❌
166 runs  166 ✔️ 0 💤 0 ❌

Results for commit f4616f3.

♻️ This comment has been updated with latest results.

[vogella]

Can you check LayoutManagersTest#test_customImplementationOf_LayoutManager? This test fails with this change and looks related.