Moves the Properties editor context switching to a vertical tabs region.
Design Task: T54951
Differential Revison: D3840
The tabs are regular widgets, unlike the 'old' toolshelf tabs. This means they
give mouse hover feedback, have tooltips, support the right-click menu, etc.
Also, when vertical screen space gets tight, the tabs can be scrolled, they
don't shrink like the toolshelf ones.
The tab region is slightly larger than the header. The tabs are scaled up
accordingly. This makes them nicely readable.
The header is quite empty now. As shown in T54951, we wanted to have a search
button there. This should be added next.
Implementation Notes:
* Added a new region type, RGN_TYPE_NAVIGATION.
* Having the tabs in a separate region allows scrolling of the tab-bar, unlike
the toolshelf tabs. We might want to remove the scrollbars though.
* Added a new region flag RGN_FLAG_PREFSIZE_OR_HIDDEN, to ensure the tab region
is either hidden or has a fixed size.
* Added some additional flags to support fine-tuning the layout in panel and
layout code.
* Bumps subversion.
With the new automatic handle algorithm, it is possible to do a lot
of the animation via keyframes without touching the curves. It is
however necessary to change the keyframe interpolation and handle
types in certain cases. Currently the dopesheet/action editor
allows changing the types, but does not show them in any way.
To fix, add a new menu option to display this information. For handle
type, it is represented using the shape of the key icons: diamond for
Free, clipped diamond for Aligned, square for Vector, circle for Auto
Clamp, and cirle with dot for Automatic.
Non-bezier interpolation is a property of intervals between keys,
so it is marked by drawing lines, similar to holds. In this initial
version, only the fact of non-bezier interpolation is displayed,
without distinguishing types. For summaries, the line is drawn at
half alpha if not all curves in the group are non-bezier.
In addition, it is sometimes helpful to know the general direction
of change of the curve, and which keys are extremes. This commit
also adds an option to highlight extremes, based on comparing the
keyed values with adjacent keys. Half-intensity display is used
for overshot bezier extremes, or non-uniform summaries.
Reviewers: brecht, aligorith, billreynish
Differential Revision: https://developer.blender.org/D3788
Add the necessary colors and/or alpha components to the theme instead.
Also switch the background for ordinary channels to use the likely
intended theme option, instead of the window background color.
The general rule is that the channel color is drawn full strength in the
channel list on the left, and with alpha in the actual key frame area on
the right. This alpha is also reused with bone group colors.
Reviewers: brecht, billreynish
Differential Revision: https://developer.blender.org/D3813
For now we have categories collection, object, object data, modifiers &
constraints, and shading. The icons can be categorized by adding e.g.
DEF_ICON_OBJECT() in UI_icons.h.
Light themes will need to be updated to use darker colors to keep icons
visible in the outliner.
It's more convenient to keep version patching in the same place,
this also splits out some function calls from version patching
and supports updating UserDef structs besides the 'U'l global.
