Bug Hunting Session
Bug 90517 - Push WinBits constants down into subclasses
Summary: Push WinBits constants down into subclasses
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: graphics stack (show other bugs)
(earliest affected)
Hardware: Other All
: medium enhancement
Assignee: Not Assigned
Keywords: difficultyInteresting, easyHack, skillCpp
Depends on:
Reported: 2015-04-08 13:29 UTC by Noel Grandin
Modified: 2017-02-14 08:57 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


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Description Noel Grandin 2015-04-08 13:29:11 UTC
So I started looking at converting the WinBits WB_* defines in


to an 'enum class', and after a few changes and discovering that there are lots of WB_ macros scattered around that simply define a new WB_ value as pointing to an existing one e.g. in

  #define WB_ICON         WB_RECTSTYLE

, I think that this whole thing needs a rethink.

Specifically, I think that

(*) we need to push these style things down to the subclass-specific level where each one applies, instead of multiplexing them into a single field at the root level

(*) we need to convert to using setter methods to turn them on and off

Further, I would suggest that

(*) the setter methods have the style

        MyWindowSubclass& MyWindowSubClass::SetFoo(bool b = true)

    so to make the code easier to write when setting multiple style flags i.e. we can then write

        MyWindowSubclass x();
Comment 1 Robinson Tryon (qubit) 2015-04-17 20:02:28 UTC
(In reply to Noel Grandin from comment #0)
> So I started looking at converting the WinBits WB_* defines in

Noel: What (if any) triage needs to happen here? Can we set this directly to NEW?

Status -> NEEDINFO
Comment 2 Robinson Tryon (qubit) 2015-12-14 05:02:04 UTC Comment hidden (obsolete)
Comment 3 Robinson Tryon (qubit) 2016-02-18 14:52:17 UTC Comment hidden (obsolete)