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PyNodes opens up the node system in Blender to scripters and adds a number of UI-level improvements.
=== Dynamic node type registration ===
Node types can now be added at runtime, using the RNA registration mechanism from python. This enables addons such as render engines to create a complete user interface with nodes.
Examples of how such nodes can be defined can be found in my personal wiki docs atm [1] and as a script template in release/scripts/templates_py/custom_nodes.py [2].
=== Node group improvements ===
Each node editor now has a tree history of edited node groups, which allows opening and editing nested node groups. The node editor also supports pinning now, so that different spaces can be used to edit different node groups simultaneously. For more ramblings and rationale see (really old) blog post on code.blender.org [3].
The interface of node groups has been overhauled. Sockets of a node group are no longer displayed in columns on either side, but instead special input/output nodes are used to mirror group sockets inside a node tree. This solves the problem of long node lines in groups and allows more adaptable node layout. Internal sockets can be exposed from a group by either connecting to the extension sockets in input/output nodes (shown as empty circle) or by adding sockets from the node property bar in the "Interface" panel. Further details such as the socket name can also be changed there.
[1] http://wiki.blender.org/index.php/User:Phonybone/Python_Nodes
[2] http://projects.blender.org/scm/viewvc.php/trunk/blender/release/scripts/templates_py/custom_nodes.py?view=markup&root=bf-blender
[3] http://code.blender.org/index.php/2012/01/improving-node-group-interface-editing/
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Now scrollbars correctly hide and show, making space for the actual contents
in a region. It solves several old hacks, and puts view2d code a bit more
back in control as well.
Implementation notes:
- The view2d mask feature is working again
- The #define V2D_SCROLL_HORIZONTAL_HIDE means: "turn on hiding".
- Code for UI_view2d_region_reinit() is enforcing better standard view settings
But... two hack/patches needed to be added:
- Region panel drawing: if after generating the button panels it appears
a scroller hides or reveils, it calls all the generating code again.
(a simple scale doesn't work due to rounding differences in layout code)
- View2d code that maps 'tot' and 'cur' rects: if this code detects that
the mask changes, it calcs the map code again.
Also a bugfix (issue in 2.65)
- The left/bottom area split widget was drawing 1 pixel too large sometimes,
leaving bad trails on moving area dividers.
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ED_mask_pixelspace_factor(). - was getting the image width/height when its not needed before.
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Nice formatted version (pictures soon):
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.66/Usability
Short list of main changes:
- Transparent region option (over main region), added code to blend in/out such panels.
- Min size window now 640 x 480
- Fixed DPI for ui - lots of cleanup and changes everywhere. Icon image need correct size still, layer-in-use icon needs remake.
- Macbook retina support, use command line --no-native-pixels to disable it
- Timeline Marker label was drawing wrong
- Trackpad and magic mouse: supports zoom (hold ctrl)
- Fix for splash position: removed ghost function and made window size update after creation immediate
- Fast undo buffer save now adds UI as well. Could be checked for regular file save even...
Quit.blend and temp file saving use this now.
- Dixed filename in window on reading quit.blend or temp saves, and they now add a warning in window title: "(Recovered)"
- New Userpref option "Keep Session" - this always saves quit.blend, and loads on start.
This allows keeping UI and data without actual saves, until you actually save.
When you load startup.blend and quit, it recognises the quit.blend as a startup (no file name in header)
- Added 3D view copy/paste buffers (selected objects). Shortcuts ctrl-c, ctrl-v (OSX, cmd-c, cmd-v).
Coded partial file saving for it. Could be used for other purposes. Todo: use OS clipboards.
- User preferences (themes, keymaps, user settings) now can be saved as a separate file.
Old option is called "Save Startup File" the new one "Save User Settings".
To visualise this difference, the 'save startup file' button has been removed from user preferences window. That option is available as CTRL+U and in File menu still.
- OSX: fixed bug that stopped giving mouse events outside window.
This also fixes "Continuous Grab" for OSX. (error since 2009)
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our naming convention.
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border zoom, view selected, view all.
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increase mem usage)
- make keyindex an unsigned int, since its used to store vertex indices
- use BLI_in_rcti_v for IN_2D_VERT_SCROLL and IN_2D_HORIZ_SCROLL
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Snapping actually was working already, but grid spacing was set to 1.0, which is basically pixel size in the node editor. Increased this to 1x grid step for fine snapping and 5x grid step for rough snapping.
Grid drawing in node editor now draws 2 levels in slightly different shades to indicate the different snapping modes better.
Node editor also supports the general use_snap tool setting to enable automatic snapping during transform. For now only the incremental snapping is supported, in future could be extended to enable alignment between nodes in a number of ways.
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without the underscores these clogged up the namespace for autocompleation which was annoying.
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http://markmail.org/message/fp7ozcywxum3ar7n
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- with the NLA on a small strip text was drawn under the scroll bar, now draw with same alignment as rectangle constrained text.
- single alloc per text item.
- was using opengl context rather then passing color value.
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avoid the problem but when the view is zero pixels wide it still hung for some time.
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Until we have proper multi-object editing, this adds a Copy To Selected
option to the right mouse button menu for Object and Bone properties, to
copy the value from the active object to the selected objects.
Also includes some implementation changes to reset to default operator.
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Keymaps are now saveable and configurable from the user preferences, note
that editing one item in a keymap means the whole keymap is now defined by
the user and will not be updated by Blender, an option for syncing might be
added later. The outliner interface is still there, but I will probably
remove it.
There's actually 3 levels now:
* Default builtin key configuration.
* Key configuration loaded from .py file, for configs like Blender 2.4x
or other 3D applications.
* Keymaps edited by the user and saved in .B.blend. These can be saved
to .py files as well to make creating distributable configurations
easier.
Also, user preferences sections were reorganized a bit, now there is:
Interface, Editing, Input, Files and System.
Implementation notes:
* wmKeyConfig was added which represents a key configuration containing
keymaps.
* wmKeymapItem was renamed to wmKeyMapItem for consistency with wmKeyMap.
* Modal maps are not wrapped yet.
* User preferences DNA file reading did not support newdataadr() yet,
added this now for reading keymaps.
* Key configuration related settings are now RNA wrapped.
* is_property_set and is_property_hidden python methods were added.
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* When resizing the window, the top position is now preserved,
instead of the center position.
* Fix zoom level not being preserved in various cases, when
changing both with and height. This replaces some earlier code
which did this at screen level but wasn't very reliable.
* Different tabs now each preserve their own scroll.
* When switching between tabs, it now scrolls to show as many
buttons as possible, instead of possibly showing empty space.
There is a trade-off here between doing that keeping the
buttons in the same place, no ideal solution exists I think.
* Change zooming in/out to be symmetric, for example doing
numpad + then - did not give the original zoom level back.
* Added some calls to avoid hanging tooltips when manipulating
the view.
Internals:
* Added V2D_KEEPOFS_X and V2D_KEEPOFS_Y to keep the top/bottom
rather than the center.
* Renamed V2D_KEEPZOOM to V2D_LIMITZOOM (seems more appropriate),
and make V2D_KEEPZOOM preserve the zoom level.
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21330 to 21469
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More scroller work:
- Added subtle arrow widgets to denote a scroller can zoom the view.
- Made zoom symmetric (old convention to only zoom "one side" just
worked badly)
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21301 to 21329
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Cleanup of scroller drawing in 2D windows.
Before:
http://download.blender.org/institute/rt11.jpg
After:
http://download.blender.org/institute/rt12.jpg
Will add 'zoom' widget circles later, as mockupped here:
http://www.reynish.com/files/blender25/fcurve_scrollbar.png
Also note the scale values are inside scroller; drawing it
on top conflicts with current frame item and markers.
Currently scroller disappear entirely when view is total.
For Joshua:
To make sliders behave nicely, the boundbox (v2d->tot) has to
be refreshed on each change. I've added it in graph drawing
now, but it could be notifier based I guess... not sure what
the correct anim api call would be. Can discuss tomorrow!
On todo:
Layout config hints so people can make scroller positions swap.
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There were a few conflicts/missing files. Hopefully everything updated ok...
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- Fix: text draw in fonts was slightly too low; it didn't calculate offset
correctly. Now it is aligned to have number characters in center.
- Fix: text clip was too wide, giving errors on extreme zoom in.
- Added boundbox-clipped default text drawing for view2d:
void UI_view2d_text_cache_rectf(View2D *v2d, rctf *rect, char *str)
(Note; also for previous commit, this cache immediately projects, so if
you change view2d while drawing, text is still on correct positions)
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Added support for cached text drawing in View2D. Cache is needed to
prevent the viewmatrix being set/restored on each text drawing.
Adding a string:
void UI_view2d_text_cache_add(View2D *v2d, float x, float y, char *str)
Drawing:
void UI_view2d_text_cache_draw(ARegion *ar)
Nothing else needed; just make sure cache-draw is always called at end
of a view2d drawing function, to clear cache memory.
On todo for next: a version with a rectf boundary to clip text within.
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In this commit, I've only setup the drawing code for the channels list. Only the drawing of the 'active action' dummy-line has been tested so far.
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* Fix buttons jumping around when resizing and zoom. Part of this was
adding a tiny a 0.001f offset in UI_view2d_view_ortho, otherwise the
rounding is unpredictable (used to be 0.375f, but that was disabled).
* Fix various issues with zooming, panning panels. V2D_LOCKOFS_X/Y is
now taken into account in more places in the view2d code, to avoid
zooming into the center or panning out of the view.
* Remove "Free" align mode in buttons window (it's not really useful).
* View3D/Graph/Image editors now use the same PanelType system as the
buttons window, means some deprecated panel code could be removed.
* Some small visual tweaks for panels.
* View 2D Reset operator (Home key), to reset zoom and panning for panels.
* Added argument to set number buttons as sliders (slider=True for itemR).
* Ignore labels for button alignment (doesn't look right).
* Fix some use of context.main in py scripts, should get data from active
object instead.
* Fix autotexspace -> auto_texspace in py script.
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* As a test, used by:
* Object buttons, tried to make it match the mockup.
* Text window header.
* Text window properties panel.
* Panel interaction with view2d is still problematic, need to make
this work properly still.
* Templates are very basic, the ones there are simple but already
can follow the object buttons mockup quite closely.
* It's based on a three level system: panels, templates and items.
To get an idea of what that means in practice, see:
http://wiki.blender.org/index.php/BlenderDev/Blender2.5/UI_LayoutEngine#Panels.2C_Templates_and_Items
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to 1.0 frame intervals.
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*** Proof of concept! ****
3D window Panels back, in own designated region for now.
Activate or hide it with Nkey.
Note that Background Image doesn't work yet, Transform
Orientations probably need tests by Martin, Sculpt options
have to be recoded there by Nicholas.
The UI design sessions will of course review all of this!
We'll have to solve a lot of related topics;
- navigation (where) and context (what)
- non-overlapping layouts vs floating panels/bars
- properties vs tools (toolbars)
- drop panels and make nice (semi-automated) list views?
I've also done experiments with making the main 3d view
stay 'behind' the buttons region. That makes popping buttons
in and out less distracting, but also makes it obscuring
the view... it's not in this commit, it didn't work proper :)
To get that work it has to be handled by the internal
compositor, then it even can have fancy transparency in back.
Anyhoo, time enough to play with this a while. Especially for
Image window (paint) it can work well too.
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* View2D to region now returns ints instead of shorts.
* Use "Numpad" instead of "Pad" in automatic keymap menu info.
* Menus can now use buttons other than BUTM and SEPR, in
particular TOG and ROW are now supported instead of flipping
bits manually.
* Added a simpler uiDefMenu* api for making menus now, and it
only supports Operator and RNA buttons at the moment, will be
used in next commit. Not sure how this will evolve .. makes
menu code look cleaner anyways.
* Ensure that interface code doesn't crash when getting unknown
Operators and RNA properties, and display their buttons grayed
out in that case.
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* Added back deselect all (and invert all) tools for Animation Channels (i.e. channel list in Action Editor).
* Resolved all MSVC warnings (I came across) in View2d code. Also, added a new API method to get the coordinates (in 'view' space) of a listview 'cell' given the row + column the cell is in.
* Tidied up a few comments here and there
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Added methods for easier checking of visiblity/position of items arranged in some regular table format (i.e. columns and/or rows).
Last commit from me for 2008!
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* Brought back backend for editing keyframes IPO/IPO-Curves. Did some refactoring work here that will still have to be verified when operators using them are added.
* Animation channel filtering code now returns the number of channels filtered (for Action Editor to set totrect of channels - TODO still!)
* View2D - made function to check if mouse is in View2D scrollers an API function
* Renamed keyframe related files. The old names were too clumsy.
* Started porting click-select operators for Action Editor. These don't work currently, as the events are being stolen by the markers. This needs to be fixed ASAP.
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with the relevant keyframes...
I still need to work out how to get this to work correctly as soon as an Action Editor instance is created.
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Now, preset view configurations are only to be used if they define all (scrollers not included) relevant settings for the view they are set for. This should be less confusing than in the previous situation with V2D_COMMONVIEW_TIMELINE stuff.
One implication of this though, is that all Animation Editors (for example), will have to define their own version of the relatively commonly shared info. However, given the great diversity in the range of settings each have, this should not be too much of an issue.
Also, added a 'standard' view config for main 'window' regions. At this stage, it is recommended that this view config should be used only as a placeholder template on which a set of custom settings could be based. I've put it into use for the buttons window/scripts window/info window so far.
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More notifier cleanup;
- removed view2d sync notifier, its data operations are too complex
for UI hints/notes, direct calls work too :)
- updated missing gpl header in region file
Noticed weird delay on menu refreshing now... will check.
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Work on getting notifiers in shape.
- Most important: local (to own region or area) redraw notifiers
have been depricated. This is not a good or correct notifier anyway.
Notifiers should be signals to other areas.
- Instead use these 2 functions:
ED_area_tag_redraw(area);
ED_region_tag_redraw(region);
It seems to me good convention to keep the area/region redraw tag
itself protected everywhere, for future improvements.
- Also added a basic WM function that checks overlapping regions,
and flushes redraws to underlying regions. This makes menus and
buttons allow to only send local region redraws.
(Brought back two "swapbuffer indicators" to test this.
- Todo: area 'action zone' redraws, and fixing other notifiers...
sending data pointers in a notifier seems to be bad idea.
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Improved the View2D API so that initialising View2D data in init() callbacks (called on new regions and also on resizing regions) for regions is easier.
Added a few preset view configurations for use when initialising new views. Views with the V2D_IS_INITIALISED flag set will not be reinitialised in the init() callbacks. Currently, some of these configurations will set/override all settings (like V2D_COMMONVIEW_LIST and V2D_COMMONVIEW_HEADER), while other ones serve a more supplimentary role (i.e. V2D_COMMONVIEW_TIMELINE only sets the x-axis settings, relying on the region to have already set the relevant y-axis settings).
The future of such supplimentary configurations is yet to be seen, as I'm currently not sure whether they will cause the code to become too confusing, as you'd have to keep track of which settings belong/are set where. So far, only a few areas have been ported to use this. Tomorrow I'll check on a few more.
As this commit touches a lot of files, hopefully there aren't any critical bugs I've missed here.
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Added notifiers for timeline syncing. Works for Timeline window
only now.
Note that I've removed the malloc-free in a Notifier... notifier
system is still under probabtion :)
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I've gone through and simplified some of the redundant options while documenting the various settings (in the code and also in the Wiki Doc), to make it clearer how to use each option.
'Preset' view-types have yet to be fully implemented, but started groundwork for this. Only some commonly used view configurations will be defined using this method. For all others, they still need to define all relavent view settings themselves (as there's too much variation in terms of the various editor's use of View2D).
IPO Editor now draws with channels on the left, like all other anim editors. Now, how to make this wider...
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* Grid calculation now takes separate args for x/y units and clamping
* Timeline now gets V2D_LOCKZOOM_Y flag to prevent zooming in y-axis
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IPO Editor Fixes:
* Grid now draws correct. Fixed typo in gridline calculations preventing drawing from occurring. Also, set the right arguments to the appropriate View2D calls.
* Limited Ton's cur<->mask mapping 'hack' to Outliner only, as it was causing problems with the drawing of the grid. Perhaps there's still some faulty code in curRect_validate that should be changed instead...
* Horizontal scroller draws frames now by default. However, the values are still offset a bit, so will need further investigation.
Outliner Fixes:
* Fixed overlapping text problem with RNA-path and menus. Now RNA path draws as a label beside the menus, so there shouldn't be any more problems there.
* do_versions code now sets all appropriate flags, as old OOPS views could cause errors with scroller drawing + view manipulation operators which depend on flags being set.
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