Most code accessing brush/landscape data by calculating indexes (e.g. Data + (Y-Y1)*XSize + (X-X1)) replaced with scanline[X] style for speed
LandscapeInfo->SelectedRegion is now only queried if it contains anything, to avoid hashing the key unneccessarily (the hash function was showing on profiles :( )
Smoothing tool's SmoothFilterKernel*Scale* replaced by the more intuitive Size
Component brush fixed to be properly centered on the cursor at odd sizes and work correctly with the add component tool when cursor is over the landscape (but part of the brush is off the landscape) and size is >1
Copy tool fixed to copy the selected area and not a circle when using ctrl+c
Also a few style cleanups. for (auto it = xyz.CreateIterator...) replaced with ranged for, enums replaced with enum classes, 0.f -> 0.0f, NULL->nullptr, etc.
[CL 2392355 by Gareth Martin in Main branch]
Refactored landscape tool strokes somewhat, removing unnecessary virtual functions (most of the stroke classes were single-level hierarchies, making virtuals pointless), empty functions and unnecessary dynamic allocation (using refactored TOptional)
[CL 2293878 by Gareth Martin in Main branch]
Rename ALandscapeProxy::DataLayer to VisibilityLayer
Fix visibility tool not showing the visibility layer as its target
[CL 2222321 by Gareth Martin in Main branch]
Breaking changes include:
* Rename of GEditorModeTools -> GLevelEditorModeTools to signify that it applies only to the level editor modes
* Addition of FEditorModeRegistry, responsible for managing and creating new editor modes. Modes are no longer registered with an instance of the mode, instead with a mode factory that is able to create a new mode of that type.
* Editor modes now operate on FEditorViewportClients rather than FLevelEditorViewportClients
* Added ability to specify an FEditorModeTools when creating an FEditorViewport
Moved component vizualiser manager handling outside of individual editor modes, and into FLevelEditorViewportClient. This should make it easier to transplant in future.
This work addresses TTP#334640 - EDITOR: Investigate making editor modes a per-'editor' concept
Reviewed by Michael Noland, Matt Kuhlenschmidt
[CL 2109245 by Andrew Rodham in Main branch]
Fixed the flatten preview grid getting stuck on. Added a checkbox to toggle the display of the grid on/off.
[CL 2095768 by Gareth Martin in Main branch]
#proj core
#branch UE4
#summary Rename Trunc, Round, Floor, Ceil to TruncToInt, RoundToInt, FloorToInt, CeilToInt. Added *ToFloat versions. Repeated for FGenericPlatformMath and all derived classes for all platforms wherever applicable. Corrected comment in Fractional and added Frac() which does HLSL-style fractional (x - floor(x)). Checked for compilation on all projects (with cooking levels wherever applicable). Didn't change Fractional to Frac, this will be done in second commit.
#codereview robert.manuszewski
[CL 2064306 by Mikolaj Sieluzycki in Main branch]
#proj core
#branch UE4
#summary Removed header groups, removed some redundant includes and replaced with forward declarations. Fixed compilation errors.
[CL 2055361 by Mikolaj Sieluzycki in Main branch]
#proj core
#branch UE4
#summary Removed header groups, removed some redundant includes and replaced with forward declarations. Fixed compilation errors.
[CL 2054304 by Mikolaj Sieluzycki in Main branch]
