Fix T75028: Improved Font Names in File Manager

When viewing font files in the File Manager, this patch uses the font's
family and style names to show the same type of string shown to users
in operating system lists. For example "Book Antiqua Regular" instead
of "BKANT.ttf"

see D12020 for details and examples.

Differential Revision: https://developer.blender.org/D12020

Reviewed by Campbell Barton and Julian Eisel

Fix T88909: Win32 getTitle() UTF8 Support

In the Win32 platform our setTitle() can properly assign a Unicode
utf-8 window title. Unfortunately our getTitle() will only read regular
8-bit character strings. This means that we can never compare what we
set to what we get. This patch updates getTitle() to use Unicode-aware
GetWindowTextLengthW and GetWindowTextW.

see T88909 for an example of this affecting user experience.

Differential Revision: https://developer.blender.org/D11782

Reviewed by Ray Molenkamp

Win32: Window Placement DPI and Scale Adjustment

When using multiple monitors that differ in scale and/or dpi, the
varying sizes of the window titles and borders can cause the placement
of those windows to be out by a small amount. This patch adjusts for
those differences on Windows 10 and newer.

see D10863 for details and examples.

Differential Revision: https://developer.blender.org/D10863

Reviewed by Ray Molenkamp

Cleanup: Win32 Window Creation

This is just some cleanup of the Win32 window creation code. After
CreateWindowExW() this patch uses some early exits to replace some
potentially confusing if blocks. No functional changes.

Differential Revision: https://developer.blender.org/D11446

Reviewed by Ray Molenkamp

Typo in function identifier: mutli -> multi

Fixing small typo of word "multi" in function identifier by renaming
"count_mutli_input_socket_links" to "count_multi_input_socket_links"

Differential Revision: https://developer.blender.org/D11732

Reviewed by Hans Goudey

UI: Improved File Browser Preview Image Scaling

This patch enables sample filtering when scaling preview images in File
Browser, improving the result a bit. Reduces blockiness and other
artifacts when enlarging the images.

see D11706 for details and examples.

Differential Revision: https://developer.blender.org/D11706

Reviewed by Julian Eisel

Fix T89246: No Mnemonic Underlines in Dialogs

When drawing mnemonic underlines for hotkeys, use text output of
underscore character instead of direct drawing a line. Otherwise these
are not visible in dialog buttons.

Introduced in 0fcc063fd99c

Differential Revision: https://developer.blender.org/D11641

Reviewed by Campbell Barton

Fix Build Warning

Removal of unused local variable. Calculation of underline thickness
no longer needed with change to text output of underscore character.

Introduced in aee04d496035

Differential Revision: https://developer.blender.org/D11641

UI - LOCAL View3D overlay stats

This patch improves the 3DView statistics overlay to show LOCAL stats
while in local view. This means the stats can vary between 3DViews and
the statusbar when views are in local view, but this gives a much more
accurate count of the objects, and their components, that you are
directly working with rather than just scene values.

Differential Revision: https://developer.blender.org/D8883

Reviewed by Campbell Barton

Error Messages Creating Thumbnail Folders

On the Windows platform there will be some errors printed to the
console if the user's thumbnail cache folder doesn't already exist.
While creating those folders there is an attempt to do so multiple
times and so we get errors when trying to create when exists. This
is caused by paths that have hard-coded forward slashes, which causes
our path processing routines to not work correctly. This patch defines
those paths using platform-varying separator characters.

Differential Revision: https://developer.blender.org/D11505

Reviewed by Brecht Van Lommel