Additional changes:
- Deprecates the previous method for specifying a singular custom class viewer filter and updates all existing occurrences of this pattern in engine code.
- Extends the property editor utilities interface to expose custom class filter(s) that can be applied to the class picker widget used for editing class property values.
- Adds an implementation of this interface to SDetailsView such that additional class filter(s) can now be configured to be applied to all underlying class property nodes.
#jira UE-108316
#rb Lauren.Barnes
#preflight 60c2102e8ae8960001110d50
[CL 16623084 by Phillip Kavan in ue5-main branch]
#rnx
#rb none
#ROBOMERGE-SOURCE: CL 10869241 via CL 10869527 via CL 10869904
#ROBOMERGE-BOT: (v613-10869866)
[CL 10870586 by ryan durand in Main branch]
#lockdown Nick.Penwarden
#rb none
==========================
MAJOR FEATURES + CHANGES
==========================
Change 3209340 on 2016/11/23 by Ben.Marsh
Convert UE4 codebase to an "include what you use" model - where every header just includes the dependencies it needs, rather than every source file including large monolithic headers like Engine.h and UnrealEd.h.
Measured full rebuild times around 2x faster using XGE on Windows, and improvements of 25% or more for incremental builds and full rebuilds on most other platforms.
* Every header now includes everything it needs to compile.
* There's a CoreMinimal.h header that gets you a set of ubiquitous types from Core (eg. FString, FName, TArray, FVector, etc...). Most headers now include this first.
* There's a CoreTypes.h header that sets up primitive UE4 types and build macros (int32, PLATFORM_WIN64, etc...). All headers in Core include this first, as does CoreMinimal.h.
* Every .cpp file includes its matching .h file first.
* This helps validate that each header is including everything it needs to compile.
* No engine code includes a monolithic header such as Engine.h or UnrealEd.h any more.
* You will get a warning if you try to include one of these from the engine. They still exist for compatibility with game projects and do not produce warnings when included there.
* There have only been minor changes to our internal games down to accommodate these changes. The intent is for this to be as seamless as possible.
* No engine code explicitly includes a precompiled header any more.
* We still use PCHs, but they're force-included on the compiler command line by UnrealBuildTool instead. This lets us tune what they contain without breaking any existing include dependencies.
* PCHs are generated by a tool to get a statistical amount of coverage for the source files using it, and I've seeded the new shared PCHs to contain any header included by > 15% of source files.
Tool used to generate this transform is at Engine\Source\Programs\IncludeTool.
[CL 3209342 by Ben Marsh in Main branch]
- This checkin eliminates use of all <Module>Classes.h files in Engine, with the exception of UnrealEdClasses.h
- Compilation speed-ups for all of the modules affected, now that they are including what they use
- No effective changes other than C++ includes
[CL 2686054 by Mike Fricker in Main branch]
* Extending the signature of a few kismet utility methods to make it more extensible.
* Now generating a list of template widgets (currrently still components). Able to safely build a hierarchy and then clone that into new objects without GLEO problems.
* Adding vertical and horrizontal boxes to UMG.
[CL 2052277 by Nick Darnell in Main branch]
