* Clarify ViewportWorldToScreen being in widget space and add DeviceScalingFactor
* -Fix viewport icons being draw wrong on high DPI displays
-Fix loading viewport icons from absolute paths, which
* Address review feedback, fix build
* add overload to ActionManager to support capturing an AZStd::function
* move snapping settings to new settings registry
* remove unneeded reference in ViewportSettings
* move viewport setting function implementations to .cpp file
* add more sensible default values for snapping
* fix variable name for angle snapping
* remove const from function prototype value parameters
* add import/export api for free functions
* change from std::bind to a lambda
* remove redundant const for constexpr string_view
* add AZStd alias for std::abs
Updated AzFramework::Scene to allow it to serve as the one-stop location for localized singletons. Localized singletons in this case are instance that can only occur once in an environment but multiple times within an application. As an example, this allows settings up a single camera per viewport for instance.
Highlights of changes:
Replaced the original ebuses with interfaces and events for easy of use and performance.
Removed the Entity Context specific code and moved that to new locations within the Entity Context itself.
Allowed basic inheritance. If a subsystem isn't found in a scene the parent can optionally be searched.
Scenes can enter a zombie state and avoid immediately being deleted. This is needed for situations where subsystems can't be destroyed until async calls have been completed.
If Atom isn't initialized and able to produce a ViewportContext, the Editor would crash. This attempts to make the initialization fail a bit more gracefully and fixes the crash in the cases I've tested.
Specifically this:
-Ensures key/mouse up event propagation works across multiple viewports
-Ensures that mouse up events for manipulators only get delivered if there's a corresponding mouse down event
-Also tidies up the "are we done processing events this tick?" logic in ViewportManipulatorController
Tom Hulton-Harrop
Nicholas Van Sickle
AMZN-mnaumov
mnaumov
hultonha
AMZN-koppersr
Alex Peterson
alexpete