* Move WindowInvalidate and WidgetInvalidate families into WindowManager
* Use InvalidateWidget shorthand in more places
* Cut back on UiContext includes
* Cut back on Window.h includes
* Remove outdated parameter comments
* Refactor windows to not share widget state
* First half of refactoring all the windows
* Refactor the remaining windows, compiles but has issues
* Fix drawing only every second widget
* Remove the need of an terminating widget
* Address WidgetIndex signedness issues; use kWidgetIndexNull more
* Address constexpr issue with Widget content union
* Fix tabs in scenery window
* Fix tabs in object selection window
* Adjust custom widget index for CustomTool events
* Use STR_NONE for default tooltip initialisation
* Adjustment for mingw compiler
* Fix bottom toolbar using the widget declaration not instance
* Remove pointless code in Guest window, handled by SetPage
* Prevent out of bounds crash
* Move scroll widgets initialization to SetPage in Cheats window
* Remove special logic in Options window
* Remove special logic in Park window
* Remove special logic for Player window
* Remove special logic for Research window
* Remove special logic for Ride window
* Remove special logic for Staff window
* Remove special logic for Finances window
* Remove special logic for MapGen window
* Remove special logic for editor objective options window
* Remove special logic for editor scenario options window
* Fix widgets not being set since page is initialized to 0
* Remove more redundant code
* Fix remaining access to widget declarations
* Remove unused variable
* Fix editor object selection tabs on successive windows
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Co-authored-by: Aaron van Geffen <aaron@aaronweb.net>
* Fix text property being available for all widget classes
Due to dukglue using a template to infer the class that a method is for it ends up registering the base class rather than the derivied class. This meant that the 3 registers of text all made text available for every type of widget. To disable it for the colourpicker, custom, listview and viewport I've explicitly had to define the template and register it for all the relevant widgets
* Up scripting version
This already revealed some places where implicit conversions were done, including some where its use was nonsense (MouseInput.cpp).
The changes to the Intent class were necessary to keep things working, and this splits things up more neatly.
