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This is needed for property search (upcoming patch D8856) where a buttons labels are often separate buttons, but we need to highlight the label to show that a property is a search result. This is especially important in "property split" layouts where the label is almost always another button in a separate column. The button groups here are basically a flattened view of the buttons in the layout tree. Every function that adds a new set of buttons creates a new button group, and the new buttons are automatically added to the most recent group. Then, each group is searched separately in the property search phase. It's important that every function adding a new button set calls layout_root_new_button_group. Note that this won't be disabled when property search isn't active. It may be useful for other things in the future, and trying to pass that information to layout functions didn't feel worth it to me. Differential Revision: https://developer.blender.org/D8783
.. Keep this document short & concise, linking to external resources instead of including content in-line. See 'release/text/readme.html' for the end user read-me. Blender ======= Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing. .. figure:: https://code.blender.org/wp-content/uploads/2018/12/springrg.jpg :scale: 50 % :align: center Project Pages ------------- - `Main Website <http://www.blender.org>`__ - `Reference Manual <https://docs.blender.org/manual/en/latest/index.html>`__ - `User Community <https://www.blender.org/community/>`__ Development ----------- - `Build Instructions <https://wiki.blender.org/wiki/Building_Blender>`__ - `Code Review & Bug Tracker <https://developer.blender.org>`__ - `Developer Forum <https://devtalk.blender.org>`__ - `Developer Documentation <https://wiki.blender.org>`__ License ------- Blender as a whole is licensed under the GNU Public License, Version 3. Individual files may have a different, but compatible license. See `blender.org/about/license <https://www.blender.org/about/license>`__ for details.