Blender Git Loki

UI: improve widget text cursor position

Use BLF_boundbox_foreach_glyph for more accurate cursor placement.

BLF: add new arguments to BLF_GlyphBoundsFn

- glyph_bounds: to get the character width.
- glyph_bearing: lower left character starting point.

These values are needed for more precise glyph calculations.

Cleanup: sort file lists

Cleanup: clang-format

Cleanup: remove unused alpha argument

start writing comments

Annotations: Remove old unused code

This code was part of the old grease pencil when annotations was not a separated module.

GPencil: More test of the Chisel brush

Possible fix for T76113: Use GL_STATIC_DRAW in immBegin

This fixes a freeze when closing temporary windows with `AMD Radeon HD 7570M`
The performance is practically the same between calls (with a micro advantage for `GL_STATIC_DRAW`)
I couldn't check the difference in memory usage.
The ideal would be profile in different setups.
But due to the seriousness of the bug, these tests were postponed.

Merge branch 'blender-v2.83-release'

Cleanup: Fix return NULL from bool type function

GPencil: More changes to improve Chisel brush

Merge branch 'master' into greasepencil-object

Conflicts:
source/blender/editors/gpencil/gpencil_paint.c

Merge branch 'blender-v2.83-release'

GPencil: Improve Market Chisel angle algorithm

With the previous commit, the angle effect was too subtle. Now the effect is more visible,

Merge branch 'blender-v2.83-release'

Revert "Outliner: Fix selection sync for various operators"

This reverts commit 92d62148bed1cf68ed674b4a9c6ba6440a697ca8.

When merging in from blender-v2.83-release the merge was somehow rebased
after viewing the log.

Outliner: Fix selection sync for various operators

Add missing outliner selection sync tagging for various non-outliner
operators.
* Curve separate
* Grease Pencil separate
* Mesh separate
* Make instances real
* 3D view paste
* Sequencer paste
* Armature delete, dissolve, separate, duplicate, subdivide, extrude,
click extrude, primitive add
* Pose Group select, delete

Resolves T71404

Outliner: Fix selection sync for various operators

Add missing outliner selection sync tagging for various non-outliner
operators.
* Curve separate
* Grease Pencil separate
* Mesh separate
* Make instances real
* 3D view paste
* Sequencer paste
* Armature delete, dissolve, separate, duplicate, subdivide, extrude,
click extrude, primitive add
* Pose Group select, delete

Resolves T71404

Add own derived struct for search buttons

A complication was that we sometimes change the button type after it's created.
So I had to add logic to reallocate the button if needed, so the derived data
can be used.