Blender Git Loki

Refactor widget code into isolated window manager submodule files (merges temp_widgets_files_refactor)

Widgets core code is now located in own folder, source/blender/windowmanager/widgets/. It is now more centralized, better structured and mixing with regular WM code was greatly minimized.

wm_widgets.c was split up into multiple files in windowmanager/widgets/intern/, wm_generic_widgets.c was split up into multiple files in windowmanager/widgets/intern/widget_library/. Both initial files are gone.

The geometry files for widget types that were previously located under windowmanager/3d_widgets are now also in windowmanager/widgets/intern/widget_library/, with a geom_ prefix.

Header files:
Widgets got own .h files, which are included into window manager .h files if needed.
API and defines for external access are in WM_widget_api.h, WM_widget_types.h and WM_widget_library.h. Also, wm_widget_wmapi.h was added as header for window manager usage only (could add #error printing for usage outside of window manager later).

Also did some minor cleanups here and there.

Correct doxygen paths and header include guards after last changes

Add widgets/intern, improve naming, move around files

After feedback from Campbell.

File structure now looks like this:
/windowmangager
...
/widgets
WM_widget_api.h
WM_widget_library.h
WM_widget_types.h
wm_widget_wmapi.h
/intern
wm_widget_intern.h
wm_widget.c
wm_widgetgroup.c
wm_widgetmap.c
/widget_library
...

fix, forgot to activate plastic connection handler in external mode

Cleanup includes

Move wmWidgetMapType_Params struct to WM_widgets_types.h

Correct widget map type flag name

Move wmWidget structs and defines into own header files

For external structs/defines we now have windowmanager/widgets/WM_widgets_types.h.
Also some cleanup.

Remove wm_widgets.c!

Used to be a big file, content is now split into multiple files in windowmanager/widgets.

Move stuff from wm_widgets.c file to proper places

Move widget declarations/defines into right header

Move wmWidgetGroup(Type) functions into own file

Move wmWidgetMap(Type) functions into own file

Think one file for wmWidgetMap and wmWidgetMapType is enough.

fix for external mode material collection function

Move wmWidget functions into own file

Moved widget functions from windowmanager/intern/wm_widgets.c to windowmanager/widgets/wm_widget.c. Added WM_widgets_api.h for external widgets API and wm_widgets.h for window manager API.

Split wm_generic_widgets.c into separate files per widget type

New files are now located under windowmanager/widgets/widget_library/xxx_widget.c. Added two headers, wm_widgets_intern.h and widget_library.h (which only contains external declarations and is only used as #include in WM_api.h).

wm_generic_widgets.c is gone now.

Move widget geometry files to windowmanager/widgets/widget_library

Moved files to new location, renamed them to geom_xxx_widget.c/widget_geometry.h, added license blocks, doxygen info, etc.

Merge branch 'master' into object_nodes

Use general exit callback called after widget tweaking

Will be used to free data and reset property to initial value.

Always activate widget when starting to drag (not only if handling is available)