* clutter/clutter-behaviour-ellipse.c:
Remove uneeded knot signal
* clutter/clutter-behaviour-path.c:
Fix so knot signal is emitted only when a knot is reached.
* clutter/clutter-effect.c:
* clutter/clutter-effect.h:
Add a scale effect.
* configure.ac:
* doc/manual/Makefile.am:
* doc/manual/clutter-manual.xml.in:
* doc/manual/manual.xsl:
* doc/manual/style.css:
Add various bits for application developers manual.
* clutter/clutter-stage.c: (clutter_stage_get_actor_at_pos):
Fix for GL/ES. Barring texture reads this means all clutter
functionality now works on GL/ES! (no doubt with a few yet to
be discovered bugs)
* clutter/clutter-backend.c:
* clutter/clutter-backend.h:
* clutter/glx/clutter-stage-glx.c:
* clutter/glx/clutter-backend-glx.c:
Fix up rendering pipeline removing clutter_backend_XXX_stage_paint
and adding clutter_backend_XXX_redraw instead. Duplicates less
code in backends, avoids clutter_actor_paint() getting called
before stage is set up (viewport wise) and unbreaks things like
picking.
* clutter/clutter-actor.c:
* clutter/clutter-actor.h:
* clutter/clutter-main.c:
* clutter/clutter-private.h:
* clutter/clutter-stage.c: (clutter_stage_get_actor_at_pos):
Redo picking functionality a different way (via color indexing)
as to provide more flexibility, possibly speed and more likely
work with GL/ES (doesn't currently however - not sure why).
* clutter/clutter-group.c:
Add groups own 'pick' method.
* clutter/cogl/cogl.h:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/cogl.c:
Move clipping funtionality into cogl.
* clutter/cogl/gles/cogl-defines.h:
Hack around missing BGR format in GL/ES.
* clutter/egl/clutter-backend-egl.c:
* clutter/egl/clutter-backend-egl.h:
* clutter/egl/clutter-stage-egl.c:
* clutter/sdl/clutter-backend-sdl.c:
* clutter/sdl/clutter-backend-sdl.h:
* clutter/sdl/clutter-event-sdl.c:
* clutter/sdl/clutter-stage-sdl.c:
Update backends to newer API.
Add basic mouse event translation to SDL.
* clutter/clutter-color.c: (clutter_color_parse):
Handle #rrggbbaa color setting strings (i.e with alpha).
Set alpha to 0xff if it is not specified.
* clutter/clutter-stage.c: (clutter_stage_get_actor_at_pos)
Increase select buffer.
* examples/super-oh.c:
Fix up use of clutter_group_show_all()
Add a semi-private function, called clutter_base_init(), which initialises
the basic Clutter functionalities (at the moment, just the GLib type system)
without calling in the backend-specific code. This function is only useful
for gtk-doc, to introspect the library when generating documentation for
signals, properties and class hierarchy.
Also, change the documentation build system to use clutter_base_init() when
launching the scanner program.
* clutter/clutter-backend.c:
* clutter/clutter-backend.h:
* clutter/clutter-event.c:
* clutter/clutter-main.c:
* clutter/clutter-private.h:
* clutter/glx/clutter-backend-glx.c:
* clutter/glx/clutter-backend-glx.h:
* clutter/glx/clutter-event-glx.c:
Rejig backend event code as to simplify a little.
NOTE: This breaks non glx backends.
* tests/Makefile.am:
* tests/test-events.c:
Add a very simple event test.
* tests/test-textures.c: (main):
Add some more sizes to the test.
* clutter/clutter-texture.c:
Fix typos with new cogl using texture code. Fixes tiled textures.
Add a check for max npots size.
* configure.ac:
* Makefile.am:
* tests/Makefile.am:
* tests/test-textures.c:
Add a simple texture test.
* clutter/Makefile.am:
* clutter/clutter-stage.c:
* clutter/sdl/Makefile.am:
* clutter/sdl/clutter-backend-sdl.c:
* clutter/sdl/clutter-backend-sdl.h:
* clutter/sdl/clutter-event-sdl.c:
* clutter/sdl/clutter-sdl.h:
* clutter/sdl/clutter-stage-sdl.c:
* clutter/sdl/clutter-stage-sdl.h:
* configure.ac:
Add a basic SDL based backend. Lacks real input event handling
(translation) as yet.
Also allows for clutter to be built against dgles.
* clutter/clutter-actor.c:
* clutter/cogl/gles/cogl.c:
Fix rotation + other fixed point cleanups.
* clutter/clutter-texture.h:
Sketch out an updated API.
* clutter/clutter-rectangle.c:
Comment out color match check for now as appears to be causing
borders to always get pained.
* clutter/clutter-texture.h:
Add some format defines (unused as yet)
* clutter/cogl/gles/cogl.c:
* clutter/egl/clutter-stage-egl.c:
* configure.ac:
Various OpenGL ES backend related fixes and tweaks.
* clutter/Makefile.am:
* clutter/clutter-debug.h:
* clutter/clutter-fixed.h:
* clutter/clutter-main.c:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-defines.h:
* clutter/cogl/gles/cogl.c:
* clutter/egl/clutter-backend-egl.c:
* clutter/egl/clutter-backend-egl.h:
* clutter/egl/clutter-stage-egl.c:
* configure.ac:
Populate most stubs for cogl GL/ES implementation.
(against vincent - see http://svn.o-hand.com/repos/misc/ogles)
Add various fixups to EGL backend.
Code builds and runs (on 16bpp) but yet displays much (is close!)
* clutter/pango/pangoclutter-render.c:
comment out some rouge glBegin/end calls.
* clutter/Makefile.am:
* clutter/clutter-actor.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-rectangle.c:
* clutter/clutter-stage.c:
* clutter/clutter-texture.c:
* clutter/cogl/cogl.h:
* clutter/cogl/gl/Makefile.am:
* clutter/cogl/gl/cogl-defines.h:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-defines.h:
* clutter/cogl/gles/cogl.c:
* clutter/glx/Makefile.am:
* clutter/glx/clutter-stage-glx.c:
* clutter/pango/Makefile.am:
* clutter/pango/pangoclutter-render.c:
* configure.ac:
Add initial 'cogl' implementation. 'cogl' is a simple abstration
layer over GL and GL/ES used by clutter internally. It should
eventually allow clutter applications to be run on both GL and GL/ES
with just a recompile as well as provide more debugging and potentially
profiling information for GL and GL/ES usage.
This commit contains the initial GL implementation.
Merge from clutter.git/master
* clutter/glx/clutter-event-glx.c:
* clutter/glx/clutter-stage-glx.c: Implement the _NET_WM_PING
protocol handling on the main stage window.
* clutter/clutter-stage.h:
* clutter/clutter-stage.c:
* clutter/clutter-main.c: Handle CLUTTER_DELETE events internally,
by calling clutter_main_quit(), and remove the ::delete-event
signal from ClutterStage; clean up the signal emission sequence
for the events: emit the ::event signal before emitting any signal
and the ::event-after signal after the signal has been emitted; move
the signal emission calls inside ClutterStage so we can call
g_signal_emit() instead of g_signal_emit_by_name(), thus sparing us
a lookup for each event.
* examples/test.c: Remove ::delete-event signal handling.
* clutter/cogl/Makefile.am:
* clutter/cogl/cogl.h:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl.c:
Begin poplulating cogl GLES code.
* configure.ac:
* clutter/egl/clutter-event-egl.c:
* clutter/egl/clutter-stage-egl.c:
* clutter/egl/clutter-stage-egl.h:
* clutter/egl/clutter-backend-egl.c:
* clutter/egl/clutter-backend-egl.h:
* clutter/egl/clutter-egl.h:
Add initial EGL/X backend work mostly ported from backend branch.
Builds but untested as yet.
* clutter/glx/clutter-stage-glx.c:
Only include XFixes Header if we have have it.
* clutter/clutter-behaviour.c: (clutter_behaviour_apply):
* clutter/clutter-behaviour.h:
Add clutter_behaviour_is_applied()
* clutter/clutter-backend.c: Clear the event queue when
disposing the backend object; remove the initialisation
of the backend structure members...
* clutter/glx/clutter-backend-glx.c: ... and keep it here
in the backends where it belongs.
* clutter/clutter-private.h:
* clutter/clutter-backend.h: Move the backend functions
into the private header.
* clutter/glx/clutter-stage-glx.c:
* clutter/glx/clutter-event-glx.c:
* clutter/clutter-main.c:
* clutter/clutter-stage.c: Update the calls to the private
backend functions.
* clutter/clutter-backend.[ch]: Add an ::init_features
vfunc to ClutterBackend.
Assorted build fixes to pass distcheck.
* clutter/glx/Makefile.am: Install the clutter-glx.h header.
* clutter/Makefile.am: Actually apply linker flags.
* configure.ac: Use a more readable CLUTTER_API_VERSION instead
of CLUTTER_MAJORMINOR; require gobject-2.0 with glib-2.0 >= 2.10,
as we are using GObject and the slice allocator from glib 2.10.
* clutter.pc.in: Add the apiversion variable.
* clutter/clutter-event.c: Pop and peek the event queue
from the tail - it's a queue, not a stack.
* clutter/clutter-private.h:
* clutter/clutter-main.c: Add a boolean signal accumulator.
* clutter/clutter-stage.[ch]: Add an event argument to
the 'delete-event' signal; rename the 'input-event' signal
to 'event'; add the static scope flag to all the stage
events.
* clutter/clutter-private.h: Remove inclusion of backend-specific
headers; update the main context object; add the declarations for
the event queue functions.
* clutter/clutter-backend.[ch]: Add the abstract ClutterBackend
object, which holds backend-specific settings, the main stage,
and the event queue. Every backend must implement a subclass of
ClutterBackend and ClutterStage.
* clutter/clutter-feature.c: Protect the GLX specific calls
behing #ifdef HAVE_CLUTTER_GLX.
* clutter/clutter-actor.c:
* clutter/clutter-group.c:
* clutter/clutter-clone-texture.c: Include GL/gl.h
* clutter/clutter-event.[ch]: Update public API and implement the
event queue private API; hold a reference on the event objects;
move out the keysym-to-unicode table; add the new event types.
* clutter/clutter-color.h: Include clutter-fixed.h
* clutter/clutter-main.c: Update API; get the main stage
from the backend object; process the event received from the
queue; lock/unlock the main mutex if we have one; move the
initialisation process sooner in the init sequence, in order to
have the backend object when we check for options; call the
backed vfuncs in the pre/post parse hooks.
* clutter/clutter-stage.c: Make ClutterStage and abstract class,
implemented by the backends.
* clutter/clutter/glx/clutter-glx.h:
* clutter/clutter/glx/clutter-backend-glx.[ch]:
* clutter/clutter/glx/clutter-event-glx.c:
* clutter/clutter/glx/clutter-stage-glx.[ch]:
* clutter/clutter/glx/Makefile.am: Add the GLX backend.
* clutter/clutter/egl/clutter-backend-egl.[ch]:
* clutter/clutter/egl/clutter-event-egl.c:
* clutter/clutter/egl/clutter-stage-egl.[ch]:
* clutter/clutter/egl/Makefile.am: Add the stub for a EGL backend.
* examples/*.c: Update for the new API.
* clutter/clutter-label.c:
Simple doc fix.
* clutter/clutter-texture.c: (clutter_texture_get_pixbuf):
Backport of fix to get_pixbuf on non alpha textures from 0_2 branch.
Allow the ClutterGroup subclasses to override the add and
remove operations.
* clutter/clutter-group.c: Move the add and remove code from
clutter_group_add() and clutter_group_remove() to the signal
class closures; make the "add" and "remove" signals as
RUN_FIRST.
* clutter/clutter-group.h: Add public functions
clutter_group_get_n_children() and clutter_group_get_nth_child().
* clutter/clutter-behaviour.h:
* clutter/clutter-behaviour.c: Fix header alignment; fix argument
name for apidoc.
* clutter/clutter-fixed.h: Remove some inline documentation to
make the header more readable.
* clutter/clutter-behaviour.c: The actors are store inside a
GSList and not in a GList, so change the list operations to
use the right API.
* clutter/clutter-feature.c: Use clutter_vblank_method() to
get the VBlank method name from the environment variable OR
the command line switch.
(clutter_feature_do_init): Move the check on the features
state here, to avoid an expensive function call, and inline
the function.
* clutter/clutter-fixed.c: Fix gtk-doc.
* clutter/clutter-main.c: Add a --clutter-vblank command line
switch controlling the VBlank method to be used: it overrides
the CLUTTER_VBLANK environment variable.
(pre_parse_hook), (clutter_init),
(clutter_init_with_args): Move thread initialisation before
type init, to avoid the warning that comes with newer GLib
versions.
* clutter/clutter-group.h:
* clutter/clutter-group.c: Mark clutter_group_show_all() and
clutter_group_hide_all() as deprecated.
* clutter/clutter-actor.c: (clutter_actor_allocate_coords):
Fix an amazingly not noticed until now typo.
Minor doc tweaks.
* clutter/clutter-behaviour-opacity.c:
(clutter_behaviour_alpha_notify):
Take into account initial opacity value when calculating from alpha.
* clutter/clutter-group.c:
Add new get_nth_child() and get_n_children() api calls.
* clutter/clutter-actor.c:
* clutter/clutter-actor.h:
Add new set_width/height API calls.
Tweak scaling by reseting matrix.
Make set_opactiy() take parent opacity into account.
Fix clipping.
* clutter/clutter-alpha.c:
Add more sine functionality.
* clutter/clutter-behaviour-opacity.c:
Dont make a copy of all applied actors but use a foreach()
* clutter/clutter-behaviour-scale.c:
Give correct limits to propertys.
Tweak gravity a little more.
Update docs.
:
* clutter/clutter-behaviour.c: (clutter_behaviour_remove):
Minor warning text change.
* clutter/clutter-feature.c: (clutter_feature_wait_for_vblank):
Minor dri ioctl tweak.
* clutter/clutter-label.c:
* clutter/clutter-label.h:
Add new label_full api call.
* clutter/clutter-label.c: Remove some gtk-isms; always take
a reference before calling g_object_notify(), as the object
might get disposed while calling the closures inside the
notify queue; notify the changes of the ellipsize property.
* clutter/clutter-color.h:
* clutter/clutter-color.c: Expose clutter_color_copy()
and clutter_color_free() for the python bindings, so that
they can manager the conversion automatically; use the
slice allocator when copying/freeing a ClutterColor.
Rework part of the show/hide machinery. Allow groups sub-classes
and composite actors to override show_all/hide_all in order to
decide which children they wish to show/hide. This means that
if an actor overrides the default show/hide virtual methods, it'll
have to chain up to the parent class show/hide. While we're at it,
provide the fully recursive clutter_actor_show_all() and
clutter_actor_hide_all() methods.
* clutter/clutter-behaviour-path.c: Add apidoc for the ClutterKnot
functions; add pathological equality case for clutter_knot_equal().
* clutter/clutter-event.h:
* clutter/clutter-feature.h:
* clutter/clutter-behaviour.c:
* clutter/clutter-behaviour-scale.c:Fix parameters name so that
gtk-doc doesn't complain.
* clutter/clutter-actor.c:
* clutter/clutter-event.c: Add apidoc
* clutter/clutter-actor.h:
* clutter/clutter-actor.c: Add a clutter_actor_show_all() and a
clutter_actor_hide_all() functions; provide a mechanism for
groups and composited actors to programmatically select what to
show/hide when clutter_actor_show_all() and clutter_actor_hide_all()
are called. If you are overriding the ClutterActor::show or
the ClutterActor::hide virtual methods you should chain up with
the parent class.
* clutter/clutter-group.c: Override show_all and hide_all and
recursively show/hide every child inside the group;
clutter_group_show_all() and clutter_group_hide_all() remain as non
recursive versions of clutter_actor_show_all() and
clutter_actor_hide_all() (maybe we should rename them in order
to avoid name clashes with the bindings).
* clutter/clutter-stage.c:
* clutter/clutter-texture.c: Chain up with parent class show
and hide vfuncs.
* clutter/clutter-clone-texture.h:
* clutter/clutter-clone-texture.c: Provide API for changing the
parent texture of a clone texture actor.
* examples/behave.c:
* examples/super-oh.c:
* examples/test.c: Use clutter_actor_show_all() instead of
clutter_group_show_all().
* clutter/clutter-behaviour.h: Add a function prototype
for the foreach function: we need something more specific
than GFunc; add clutter_behaviour_get_actors(), used to
get a list of the actors.
* clutter/clutter-behaviour.c: Add debugging notes; add
a warning for behaviour implementations missing the
alpha_notify vfunc; add api documentation
* clutter/clutter-behaviour-opacity.c:
* clutter/clutter-behaviour-path.c:
* clutter/clutter-behaviour-scale.c: Reimplement the
alpha_notify functions using the new foreach function
and, where possible, by directly iterating on the
actors: this shaves off the number of recalculations
of the property/alpha values, and the number of
functions.
* clutter/clutter-color.h:
* clutter/clutter-color.c: Add clutter_color_parse(),
which parses a string containing a color definition as
understood by XParseColor() (or pango_color_parse()).
Avoid clutter segfaulting when used without invoking
clutter_init(). This is needed when using api documentation
tools and every other tool relying on the GObject
introspection API (esp. on a headless box). see the
note in clutter/clutter-feature.c:clutter_feature_init
for a full explanation.
* clutter/clutter-feature.c: Call clutter_feature_init()
when needed by one of the accessors of the features
structure.
* clutter/clutter-main.c:
* clutter/clutter-private.h: Remove clutter_feature_init()
public declaration: the features support check is done the
first time a feature is needed.
* clutter/clutter-main.c: Do not ever access the clutter
main context pointer directly; instead, obtain a pointer
to it via clutter_context_get_default(), which will always
return something valid.
* clutter/clutter-private.h: Add our own READABLE,
WRITABLE and READWRITE paramspec flags, declaring the
string components of the properties GParamSpec as static;
this should shave off some bytes in the memory footprint
and avoid relocations.
* clutter/clutter-actor.c:
* clutter/clutter-behaviour.c:
* clutter/clutter-behaviour-opacity.c:
* clutter/clutter-behaviour-path.c:
* clutter/clutter-behavuour-scale.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-label.c:
* clutter/clutter-rectangle.c:
* clutter/clutter-stage.c:
* clutter/clutter-texture.c:
* clutter/clutter-timeline.c: Use the CLUTTER_PARAM_*
macros we just added.
* clutter/clutter-behaviour-scale.c: Add properties for
the scale begin, scale end and gravity parameters.
* clutter/clutter-behaviour-path.h: Mark the ClutterKnot
memory management functions as public (for the bindings),
since we use the slice allocator for copying knots around;
add a clutter_knot_equal() function.
* clutter/clutter-behaviour-path.c:
(node_distance): Use clutter_knot_equal() as a fast path
to avoid the sqrt() in case the nodes we are using are
at the same position.
(path_total_length): Additional check on the existence
of the next node.
* examples/behave.c: Do not leak the ClutterBehaviour
objects around.
* clutter/clutter-texture.h: Clean up.
* clutter/clutter-texture.c: Typo fix in the name
of ClutterTextureTileDimension.
* clutter/clutter-behaviour.c: Allow passing NULL
to clutter_behaviour_set_alpha() (as we pass NULL
in the finalize process).
* clutter/clutter-stage.h:
* clutter/clutter-stage.c:
(clutter_stage_swap_buffers): Remove, as the same is done
via clutter_redraw() and clutter_actor_queue_redraw().
(clutter_stage_unrealize), (clutter_stage_init),
(clutter_stage_set_xwindow_foreign): Do not call
XDestroyWindow() on the stage Window if we are using a
foreign Window, as we don't control its lifetime.
* Makefile.am: Remove the gtk directory from the SUBDIRS.
* clutter/clutter-stage.h:
* clutter/clutter-stage.c: Add clutter_stage_swap_buffers(),
which swaps the GL buffers. This fixes the redraw in the
GTK widget.
* clutter/clutter-actor.c:
* clutter/clutter-alpha.c:
* clutter/clutter-behaviour-opacity.c:
* clutter/clutter-behaviour-scale.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-feature.c:
* clutter/clutter-label.c:
* clutter/clutter-main.c:
* clutter/clutter-stage.c:
* clutter/clutter-texture.c
* clutter/clutter-timeline.c:
* clutter/clutter-debug.h:
Make CLUTTER_NOTE() just take a string rather than a func.
Add more default context to output.
* configure.ac:
Fix flag and add more help docs for --ebable-debug option.
* configure.ac: Enable debug messages also when
--enable-debug is set to "minimum".
* clutter/Makefile.am:
* clutter/clutter-debug.h: Move all debugging macros inside
this private header; make all debug macros depend on the
CLUTTER_ENABLE_DEBUG compile time define, controlled by
the --enable-debug configure switch; add G_LOG_DOMAIN define.
* clutter/clutter-main.c: Clean up the debug stuff; add
command line argument parsing using GOption; the debug
messages now are triggered like this:
CLUTTER_DEBUG=section:section:... clutter-app
or like this:
clutter-app --clutter-debug=section:section:...
where "section" is one of the sections listed in clutter-main.c,
or "all", for all sections; each section is bound to a flag,
which can be used to define a domain when adding a debug note
using the CLUTTER_NOTE() macro; the old CLUTTER_DBG() macro is
just a wrapper around that, under the CLUTTER_DEBUG_MISC domain;
CLUTTER_NOTE() is used like this:
CLUTTER_NOTE (DOMAIN, log-function);
where log function is g_printerr(), g_message(), g_warning(),
g_critical() or directly g_log() - for instance:
CLUTTER_NOTE (PANGO, g_warning ("Cache miss: %d", glyph));
will print the warning only if the "pango" flag has been
set to the CLUTTER_DEBUG envvar or passed to the --clutter-debug
command line argument.
similar to CLUTTER_SHOW_FPS, there's also the --clutter-show-fps
command line switch; also, the --display and --screen command
line switches have been added: the first overrides the DISPLAY
envvar and the second controls the X screen used by Clutter to
get the root window on the display.
* clutter/clutter-main.h:
* clutter/clutter-main.c: Add extended support for GOption
in Clutter; use clutter_init_with_args() to let Clutter
parse your own command line arguments; use instead
clutter_get_option_group() to get the GOptionGroup used by
Clutter if you want to do the parsing yourself with
g_option_context_parse(). The init sequence has been verified,
updated and moved into common functions where possible.
* clutter/pango/pangoclutter-render.c:
* clutter/*.c: Include "clutter-debug.h" where needed; use
CLUTTER_NOTE() instead of CLUTTER_DBG().
* examples/super-oh.c: Use the new clutter_init_with_args()
function, and add a --num-hands command line switch to
the SuperOH example code controlling the number of hands at
runtime.
* clutter/clutter-rectangle.h:
* clutter/clutter-rectangle.c: Add border to the ClutterRectangle
actor; add "border-width", "border-color" and "has-border"
properties, plus their accessors. The border generation code is
pretty lame, at the moment.
* examples/behave.c: Add code to test the new rectangle properties.
* clutter/Makefile.am:
* clutter/clutter.h:
* clutter/clutter-version.h.in: Auto-generated versioning macros.
* clutter/clutter-actor.h:
* clutter/clutter-actor.c: Add a ClutterActor::parent-set signal,
for notificating changes of an actor's parent; add api-doc for
the actor's properties; add the ClutterActor "name" property; clean
up a bit some functions; emit the "parent-set" signal when setting
te parent and when unparenting; better warnings when lowering
and raising an actor.
* configure.ac:
* clutter/Makefile.am: Add a --enable-debug configure option,
with three levels of debugging: no, minimum and yes; default
for development releases (odd minor version) is "yes"; update
the version m4 defines; update the libtool macros: now just
changed the clutter_interface_age when releasing will update
everything else.
* clutter/clutter-behaviour-path.h:
* clutter/clutter-behaviour-path.c: Add "since" strings; add
a "knot" property which can be used to append a knot to the path;
fix apidoc.
* clutter/clutter-alpha.c: Add "since" strings.
* clutter/clutter-feature.c: Add apidoc.
* clutter/clutter-behaviour-opacity.c: Add the "opacity-start"
and "opacity-end" properties; rewrite constructor to use them.
* clutter/clutter-behaviour-path.h:
* clutter/clutter-behaviour-path.c: Add a "knot-reached" signal,
which is emitted when the path reaches a node in the nodes list;
flesh out the documentation a bit; sync the parameters names
so that gtk-doc doesn't complain about missing stuff.
* clutter/clutter-behaviour.h:
* clutter/clutter-behaviour.c: Add the alpha value to the
ClutterBehaviour::alpha_notify vfunc, so you don't have to
get the value from the alpha inside the behaviour implementations;
add more documentation.
* clutter/clutter-alpha.c: Flesh out the description.
* clutter/clutter-actor.h: Update the header.
* clutter/clutter-behaviour-opacity.c:
* clutter/clutter-behaviour-scale.c: Update docs.
