This commit restores transform support for NLA. Grab, scale, 'extend', and tweak (i.e. grab by just click+dragging) are implemented.
Notes:
- As soon as one end of a strip touches another adjacent strip (within the same track), that end stops moving. This has been done to avoid the situation where overlapping strips within the same track (which is not allowed) might be caused by transforms.
- Made some changes to the RNA setters for the strip extents so that the validation above could take place (and other necessary changes on a per-strip basis could also occur).
TODO's ?
- Strips cannot be transferred from track to track using transforms. I've yet to decide whether this needs to be done, or whether a separate operator will suffice.
- What happens to the range of Actions used when the strips change sizes unexpectedly (i.e. the no-overlap condition above)? Currently range stays the same, but this doesn't always seem desirable?
- Most of the settings wrapped in RNA have been exposed here using the new layout engine stuff from Brecht (C-API). I've tried to maintain a hierarchy of high-level (owner, generic-settings) to low-level (children, specialised-settings) here, which seems to be the prevailing guidelines?
(It took a while to try to understand how this all fitted together, since there were no clear examples on how to use this anywhere)
- NLA-Strip Modifiers have not been exposed yet. They still use the old-style drawing, which may/may not be compatible here.
- Fixed a bug with how the notifiers from this panel get sent. I really don't know how the compiler would have missed the undeclared pointer that was being used ('ob').
If anyone's doing any testing at this point, please check if this works ok for files with new/old NLA Editors, as I was having some problems with one of my testing (saved from this branch) files with this.
- Evaluation times for strips are now strictly clamped to the endpoints of the strips - i.e. if a strip has 'extend' on, the strip's evaluation time won't continue to change as time changes
- New NLA Editor instances now have auto-snapping turned on by default (as they should)
Most of the relevant properties have been wrapped.
- There are still some properties I'm not sure about whether they should be exposed at all (which have been left out for now). Most of these are really internal flags which are used in a few select places.
- To maintain the integrity of the settings, I've included some custom code for a few of the setters (i.e. scale/end-frame) where changing one should result in a change in the other and vica-versa.
Also, tweaked the wrapping for a few other types.
Another side effect of this commit is that I can now uncommented some code for using F-Curves to control the influence and time of the strips. These F-Curves would need to be specifically attached to the NLA-Strip they affect for now (TODO: I need to review this again...), and as such, cannot be used yet since there's no (end-user-accessible) way to do this :)
-Many things not yet working properly :)
-Experimental new (hopefully more logical) categorization of buttons, feedback on this is very welcome.
-Separate render & draw types, for example now there is actually a render option "halo" instead of all the different point draw types.
-Particles get recalculated only from buttons that actually change something that has to be recalculated, for example changing visualization doesn't reset particles any more.
-Boid physics buttons are still missing as I'm currently redoing the whole boids code.
-Point caching is still very wip, so baking is not possible for example, but I added a few cache baking flags for rna that were/will be needed for particle buttons logic.
This allows the sequencers Add-Image strip to work like it does in 2.4x.
- as well as setting the "filename" operator property, operators can have collections called "files" and "dirs" which are set when available.
- RNA_OperatorFileListElement as new collection type, its a bit redundant since each item only has a "name" property but its needed since we don't have a string array type.
- the file selector now prints operators it runs.
Tested with python, adding a list of images works to the sequencer works.
bpy.ops.SEQUENCER_OT_image_strip_add(name="MyImages", start_frame=54, channel=2, filename="/somedir/", replace_sel=True, files=[{"name":"test1.png"}, {"name":"test2.png"}])
Search menu:
- Made nicer drawing for popup version of search. It now uses
entire backdrop like pulldowns.
Search boxes for text buttons will use different style still;
if we use this option all over it shouldn't look too intrusive.
- Search menu allows scroll, to view all items. It doesn't cycle
anymore.
- Click outside search menu now cancels
- If a match is in search button, it highlights it. This also
allows ALT+CTRL+F - Enter to redo last op.
- Search popup draws higher when no no space below. No order
flipping!
- Support for python to convert a PyObject into a collection (uses a list of dicts - quite verbose :/)
- Operators can now take collection args when called from python.
- Support for printing operators that use collections (macro recording).
- Added RNA_pointer_as_string which prints all pointer prop values as a python dict.
Example that can run in the in test.py (F7 key)
bpy.ops.VIEW3D_OT_select_lasso(path=[{"loc":(0, 0), "time":0}, {"loc":(1000, 0), "time":0}, {"loc":(1000, 1000), "time":0}], type='SELECT')
for some reason lasso locations always print as 0,0. Need to look into why this is.
* Fixed an evil bug where the last frame of a strip was always incorrectly evaluated.
This was because these frames were not being included in the strip's 'range' as defined by the IN_RANGE() testing macro, which only considers the given range as an open interval (i.e. non-inclusive of boundary points). I've added a new macro, IN_RANGE_INCL(), which is inclusive of boundary points, since this is a common test in many other parts of the code.
* When an AnimData block is in 'tweaking' mode, the tracks following (and including the active track) are now correctly skipped during evaluation.
* Finished coding the option of setting a single NLA-track per NLA-block to play 'solo' (i.e. only that track is enabled for evaluation).
To enable this, simply click on one of the grey 'dots' beside the NLA-track names, turning this dot yellow. The 'yellow' dot means that the track will play by itself (even the 'active action' gets silenced). Only one track per AnimData block can play solo at a time. To disable, simply click on the 'yellow' dot again.
NOTE: this currently uses the View3D layer-status icons. We probably need some special ones for these later (coloured vs grey star?)
* Also (not related to evaluation) made the selection operators for the NLA Editor only work when not in tweaking mode, since in tweaking mode they can potentially result in data being resolved inappropriately when leaving tweaking mode.
In this commit, I've introduced the mechanism by which actions already referenced by strips used in the NLA can be edited (or 'tweaked'). To use, simply select a strip you wish to edit, and hit that TAB key to start tweaking that strip's action, and hit TAB again once you're done.
What happens when you enter 'tweak mode':
1) The action of the active strip temporarily becomes the 'active action' of the AnimData block. You are now able to edit this in one of the Animation Editors (DopeSheet/Action, Graph Editors) as per normal (i.e. sliding keyframes around, inserting keyframes, etc.). The 'action-line' will therefore get drawn immediately above the active track containing the active strip, so that it's clear that that's what we're editing.
2) All the NLA-tracks (and all the strips within them) that occur after the track that the active strip lived in get disabled while you're in tweakmode. This is equivalent to travelling back to an earlier state in a construction history stack.
3) The active NLA track also gets disabled while in tweakmode, since it would otherwise interfere with the correct functioning of the tweaking for the action of interest.
4) The 'real' active action (i.e. the one displaced by the active strip's action) gets put into temp storage, and will be restored after you exit tweakmode.
5) Any strips which also reference the action being tweaked will get highlighted in red shading to indicate that you may be making some changes to the action which you don't really want to make for the other users too.
Please note though, that this is only a rough prototype of this functionality, with some niceties still to come. i.e.:
* NLA-tracks after the active track should still get drawn above the 'tweaking action line', but perhaps with different appearance?
* Various tools will still need awareness of this to prevent corrupting operations from taking place. How to proceed is still undecided...
* When exiting tweak-mode, the strip the action came from still needs some form of syncing with the modified action... there are a few tricky issues here that will need to be solved
* Evaluation code doesn't totally take this into account yet...
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Also, fixed a number of bugs with various code (notably selection, and also a few drawing bugs)
Bugfix: Icons were drawing on wrong subpixel positions, distorting
badly. Now it's crispy and tasty!
Noticed there's a magnifier icon already, using it for the search
option.
* First step for buttons context browsing, read-only still.
* Drawn in a panel now, though this should become a separate region.
* Path of the context is constructed as an array of RNA pointers and
then used for drawing and context lookups from python.
* Added a MaterialSlot collection in Object rather than giving
the list of materials immediately. This should more correctly
reflect how this data is organized, even though there is no
equivalent C struct.
* Added name properties to MaterialSlot/TextureSlot/ParticleSystem.
Further work on new "text search" button.
- Now allows to browse items (mouse, arrow key)
- Assigns active value
- Uses different backdrop to distinguish from popup menus
- Cleaned API for it, so it can be used nicely generic
Also added a search menu, which shows all currently working
operators: CTRL+ALT+F. (mind the looks, it needs some tweaks!)
To make a menu activating a button I've added a new event...
could use some tweaks.
Important note: the callback to pass on "old string" for text
button (bone rename) couldn't work yet, added first code for new
callback, but has to be worked on further. When bone rename gets
added it can be tested.
* Following user feedback, I've increased the separation between normal NLA-tracks and the 'action lines' to try and differentiate them more. This hopefully this will be sufficient, otherwise, I'm going to have to abandon the use of nice, generic channel-identification code for lists of channels...
* Improved drawing of 'active' strips.
- Now, the active strip (when NOT being 'tweaked') will be simply drawn as a yellow strip + a white border.
- The active strip (when BEING 'tweaked') will now be greenish + a white border. The colour here may be tweakable, but we'll see...
* Strip extrapolation modes (hold, etc.) are now visualised as rects with alpha and the same colour as the strip they belong to.
* Selecting strips now makes them 'active' (and deactivates the others). Only one strip can be active at a time. Still need to figure out precisely how this will work with multiple AnimData blocks + NLA-'tweaking'.
* Fixed view-matrix bug introduced in last commit for text drawing. For now, we'll just reset the view matrix after doing that, since it's not too acceptable to move these calls to the end yet, as they should get overlapped by some other editor features (such as the Current Frame indicator)
* Make modifier and constraint templates use left/right alignment for
buttons in the header.
* Added mdef bind operator as an example of how to use local context
for a modifier, and add some code I forgot to commit last time to
make this system actually work.
* Fix crash adding rigid body constraint.
* Give new nodetrees NT in ID name to make them recognizned by RNA,
even if the nodetrees aren't actual ID datablock.
* Fix an issue where the pointer types wasn't always refine
to the most specific type, now RNA_pointer_create also
does this for convenience.
* Make lamp fallof type editable.
Part one of new text button type: SEARCH_MENU
This opens a popup showing all matches for a typed string, nice
for object names, materials, operators, and so on.
Warning: Currently menu doesn't function yet! Only draws choices.
As test I've added an operator search button in top bar. It only
shows operators that can be used in this context now. Also that
is part of the WIP, tomorrow more fun :)
