When validating a new GValue against the ClutterParamSpecUnits, we issue
a warning when the units do not match with both the new value and the
unit we expect to have. Unfortunately we were printing the unit of the
new value twice and not the unit of the ParamSpec.
http://bugzilla.openedhand.com/show_bug.cgi?id=1846
This is really useful when trying to animate GTypes that haven't
registered any progress function. Instead of silently not working it
will warn the developer.
http://bugzilla.openedhand.com/show_bug.cgi?id=1845
To be able to animate CLUTTER_TYPE_UNITS properties we need to register
the GType and its progress function against the ClutterInterval code.
The two ClutterUnits defining the interval can use different units, the
resulting unit will always be in pixels, so calculating a progress
between 10px and 4cm is valid.
http://bugzilla.openedhand.com/show_bug.cgi?id=1844
When computing the pixels value of a ClutterUnits value we should
be caching the value to avoid recomputing for every call of
clutter_units_to_pixels(). We already have a flag telling us to
return the cached value, but we miss the mechanism to evict the
cache whenever the Backend settings affecting the conversion, that
is default font and resolution, change.
In order to implement the eviction we can use a "serial"; the
Backend will have an internal serial field which we retrieve and
put inside the ClutterUnits structure (we split one of the two
64 bit padding fields into two 32 bit fields to maintain ABI); every
time we call clutter_units_to_pixels() we compare the units serial
with that of the Backend; if they match and pixels_set is set to
TRUE then we just return the stored pixels value. If the serials
do not match then we unset the pixels_set flag and recompute the
pixels value.
We can verify this by adding a simple test unit checking that
by changing the resolution of ClutterBackend we get different
pixel values for 1 em.
http://bugzilla.openedhand.com/show_bug.cgi?id=1843
Input Methods require to be able to set a "pre-edit string", that is
a string that it's just displayed into the Text actor without being
committed to the actor's buffer. The string might require custom Pango
attributes, and an update of the cursor position.
Casting a float to int to truncate it before assigning the value
to a float again is wrong. We should use ceilf() instead which
does what we want to achieve (rounding up the size to avoid
sub-pixel positioning of children).
* Use g_list_foreach() instead of iterating over the list inside
the destruction sequence, since we are causing the widgets to be
implicitly removed from the list via the destroy() call.
* Use g_signal_connect_swapped() and spare us from a callback.
FlowLayout should compute the correct height for the assigned width when
in horizontal flow, and the correct width for the assigned height when
in vertical flow. This means pre-computing the number of lines inside
the get_preferred_width() and get_preferred_height(). We can then cache
the computed column width and row height, cache them inside the layout
and then use them when allocating the children.
When changing the orientation of a FlowLayout, the associated
container should also change its request mode. A horizontally
flowing layout has a height depending on the width, since it
will reflow vertically; similarly, a vertically reflowing layout
will have a width depending on the height.
The :wrap property is not implemented, and mostly useless: the
FlowLayout is a reflowing grid. This means that if it receives
less than the preferred width or height in the flow direction
then it should always reflow.
Use the column and row size to align each child; with :homogeneous
set to TRUE, or with children with the same size, the FlowLayout
will behave like a reflowing grid.
FlowLayout is a layout manager that arranges its children in a
reflowing line; the orientation controls the major axis for the
layout: horizontal, for reflow on the Y axis, and vertical, for
reflow on the X axis.
The BinLayout should store a pointer to the Container that it is
using it as the layout manager.
This allows us to fix the API and drop the additional Container
arguments from set_alignment() and get_alignment().
This also allows us to add a ClutterBinLayout::add() method which
adds an actor and sets the alignment policies without dealing with
variadic arguments functions and GValue (de)marshalling.
Use the LayoutManager API to set a back pointer to the Box actor
inside the LayoutManager used by the box.
This also allows us to replace the LayoutManager on a Box, since
the LayoutManager will be able to replace all the metadata if
needed.
The LayoutManager implementation might opt to take a back pointer
to the Container that is using the layout instance; this allows
direct access to the container itself from within the implementation.
The ClutterBox::add method is a simple wrapper around the Container
add_actor() method and the LayoutManager layout properties API. It
allows adding an actor to a Box and setting the layout properties in
one call.
If the LayoutManager used by the Box does not support layout properties
then the add() method short-circuits out.
Along with the varargs version of the method there's also a vector-based
variant, for language bindings to use.
Instead of overloading ClutterChildMeta with both container and layout
metadata and delegate to every LayoutManager implementation to keep a
backpointer to the layout manager instance, we can simply subclass
ChildMeta into LayoutMeta and presto! everything works out pretty well
for everyone.
Each actor managed by a BinLayout policy should reside inside its
own "layer", with horizontal and vertical alignment. The :x-align
and :y-align properties of the BinLayout are the default alignment
policies, which are copied to each new "layer" when it is created.
The set_alignment() and get_alignment() methods of BinLayout can
be changed to operate on a specific "layer".
The whole machinery uses the new ChildMeta support inside the
LayoutManager base abstract class.
The ChildMeta object is a storage for child-container properties,
that is properties that exist only when an actor is inside a specific
container. The LayoutManager delegate class should also have
layout-specific properties -- so, for this job, we can "recycle"
ChildMeta as the storage.
Emit the ::layout-changed when the BinLayout alignment policies change.
This will result in a queue_relayout() on the containers using the
BinLayout layout manager.
* Use ::layout-changed to queue a relayout when the layout changes
* Destroy the Box children when destroying the Box
* Allow getting the layout manager from the Box
If a sub-class of LayoutManager wishes to implement a parametrized
layout policy it also needs a way to notify the container using the
layout manager that the layout has changed. We cannot do it directly
and automatically from the LayoutManager because a) it has no back
link to the actor that it is using it and b) it can be attached to
multiple actors.
This is a job for <cue raising dramatic music> signals!
By adding ClutterLayoutManager::layout-changed (and its relative
emitted function) we can notify actors using the layout manager that
the layout parameters have been changed, and thus they should queue
a relayout.
A BinLayout is a simple layout manager that allocates a single cell,
providing alignment on both the horizontal and vertical axis.
If the container associated to the BinLayout has more than one child,
the preferred size returned by the layout manager will be as big as
the maximum of the children preferred sizes; the allocation will be
applied to all children - but it will still depend on each child
preferred size and the BinLayout horizontal and vertical alignment
properties.
The supported alignment properties are:
* center: align the child by centering it
* start: align the child at the top or left border of the layout
* end: align the child at the bottom or right border of the layout
* fill: expand the child to fill the size of the layout
* fixed: let the child position itself
A layout manager instance makes only sense if it's owned by a
container. For this reason, it should have a floating reference
instead of a full reference on construction; this allows constructing
Boxes like:
box = clutter_box_new (clutter_fixed_layout_new ());
without leaking the layout manager instance.
The LayoutManager class is an abstract proxy for the size requesition
and size allocation process in ClutterActor.
A ClutterLayoutManager sub-class must implement get_preferred_width(),
get_preferred_height() and allocate(); a ClutterContainer using the
LayoutManager API will then proxy the corresponding Actor virtual
functions to the LayoutManager instance. This allows having a generic
"blank" ClutterActor sub-class, implementing the ClutterContainer
interface, which leaves only the layout management implementation to
the application developers.
The rules to create signal marshallers and enumeration GTypes are
usually copied and pasted all over different projects, though they
are pretty generic and, given a little bit of parametrization, can
be put in separate Makefile.am files and included whenever needed.
The set_default_stage() method of StageManager should not be used
by application code; technically, nothing in Clutter uses it, and
StageManager's API is not considered public anyway.
The IN_DESTRUCTION flag is set around the unrealization and disposal of
the actor in clutter_actor_destroy() but is never unset (it's set twice
instead).
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
Currently, setting the :text property has the side-effect of
setting the :use-markup property to FALSE. This prevents
constructing a Text actor, or setting its properties, like:
g_object_set (text,
"use-markup", TRUE,
"text", some_string,
NULL);
as the ordering becomes important. Unfortunately, the ordering
of the properties cannot be enforced with ClutterScript or
with language bindings.
The documentation of the clutter_text_set_text() method should
be expanded to properly specify that the set_text() method will
change the :use-markup property to FALSE as a side effect.
Transform functions allow the use of g_value_transform() to cast
GValues. It's very handy to have casts to and from G_TYPE_STRING as it
allows generic serialization and parsing of GTypes.
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
Current parsing of units has a number of shortcomings:
* a number followed by trailing space (without any unit specified) was
not recognized,
* "5 emeralds" was parsed as 5em,
* the way we parse the digits after the separator makes us lose
precision for no good reason (5.0 is parsed as 5.00010014...f which
makes g_assert_cmpfloat() fail)
Let's define a stricter grammar we can recognize and try to do so. The
description is in EBNF form, removing the optional <> which is a pain
when having to write DocBook, and using '' for the terminal symbols.
Last step, add more ClutterUnits unit test to get a better coverage of
the grammar we want to parse.
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
Parse #rgb and #rrggbb in addition to forms with the alpha channel
specified. This allows conversion of colour strings from documents such as
CSS where the alpha channel is not specified when using '#' notation.
This patch also adds the relevant conformance test.
Parse #rgb and #rrggbb in addition to forms with the alpha channel
specified. This allows conversion of colour strings from documents such as
CSS where the alpha channel is not specified when using '#' notation.
gdk is an optional clutter dependency, so the pick buffer debugging option
needs some guards so we don't break, for example, the OSX builds. This also
adds a comment for the bit fiddling done on the pick colors used to ensure
the pick colors are more distinguished while debugging. (we swap the
nibbles of each color component so that pick buffers don't just look black.)
ClutterGroup previously calculated the size as the distance from the
left edge of the leftmost child to the right edge of the rightmost
child except if there were any chidren left of the origin then the
left edge would be zero.
However the group is always allocated its size relative to its
origin so if all of the children are to the right of the origin then
the preferred size would not be large enough to reach the rightmost
child.
origin
┼──────────┐
│Group │
│ ┌────────┼─┐
│ │Child │ │
│ │ │ │
└─┼────────┘ │
│ │
└──────────┘
group size
╟──────────╢
This patch makes it so the size is always just the rightmost edge.
origin
┼────────────┐
│Group │
│ ┌──────────┤
│ │Child │
│ │ │
│ │ │
│ │ │
└─┴──────────┘
group size
╟────────────╢
Fixes bug:
http://bugzilla.openedhand.com/show_bug.cgi?id=1825
Since the Great Rework of ClutterUnits, functions have been using
'units' not 'unit' in their name. clutter_value_get_unit() is a left
over from a dark age, its declaration and documentation have been
updated but not the symbol itself.
Instead of having an assertion failure with a message of dubious
usefulness, we should probably use a more verbose warning explaining
what is the problem and what might be the cause.
The user-initiated resize is conflicting with the allocated size. This
happens because we change the size of the stage's X Window behind the
back of the size allocation machinery.
Instead, we should change the size of the actor whenever we receive a
ConfigureNotify event to reflect the new size of the actor.
We force the redraw before mapping, in the hope that when a composited
window manager maps the window it will have its contents ready; that is
not going to work: the solution for this problem requires the implementation
of a protocol for compositors, and not a hack.
Moreover, painting before mapping will cause a paint with the wrong
GL viewport size, which is the wrong thing to do on GLX.
When not building a debug build the compiler was warning about empty
else clauses with no braces due to code like:
if (blah)
do_foo();
else
COGL_NOTE (DRAW, "a-wibble");
This simply ensures that even for non debug builds COGL_NOTE will expand to
a single statement.
glVertexPointer expects positions with 2, 3 or 4 components, glColorPointer
expects colors with 3 or 4 components and glNormalPointer expects normals
with three components so when adding vertex buffer atributes with the names
"gl_Vertex", "gl_Color" or "gl_Normal" we assert these constraints and print
an explanation to the developer if not met.
This also fixes the previosly incorrect constraint that gl_Normal attributes
must have n_components == 1; thanks to Cat Sidhe for reporting this:
Bug: http://bugzilla.openedhand.com/show_bug.cgi?id=1819
Now if you export CLUTTER_DEBUG=dump-pick-buffers clutter will write out a
png, e.g. pick-buffer-00000.png, each time _clutter_to_pick() is called.
It's a rather crude way to debug the picking (realtime visualization in a
second stage would probably be nicer) but it we've used this approach
successfully numerous times when debugging Clutter picking issues so it
makes sense to have a debug option for it.
It looks like the intention was to duplicate an XVisualInfo in such a way
that the pointer could be returned and then later freed using XFree. But
Xalloc isn't an Xlib counterpart to XFree; Xlib doesn't provide a general
purpose malloc wrapper afik. By shuffling things about a bit, it was
possible to avoid the need for this hack.
By default, float * is considered as an out argument by gobject
introspection which is wrong for quite a few Cogl symbols. Start adding
annotations to fix that for the ones in the "Primitives" gtk-doc
section.
In the default implementation of container::destroy_child_meta Set child
meta qdata to NULL on the child and not the container, since the child
is the object that owns the data.
The lifetime of the journal VBO is entirely within the scope of the
cogl_journal_flush function so there is no need to store it globally
in the Cogl context. Instead, upload_vertices_to_vbo just returns the
new VBO. cogl_journal_flush stores this in a local variable and
destroys it before returning.
This also fixes an assertion when using the GLES backend which was
caused by nothing initialising the journal_vbo variable.
If the system clock rolls back between two frames then we need
to account for the change, to avoid stopping the timeline.
The best option, since a roll back can be any arbitrary amount
of milliseconds, is to skip a frame.
Fixes bug:
http://bugzilla.moblin.org/show_bug.cgi?id=3839
The framebuffer_object spec isn't clear in defining whether attaching a
texture as a renderbuffer with mipmap filtering enabled while the mipmaps
have not been uploaded should result in an incomplete framebuffer object.
(different drivers make different decisions)
To avoid an error with drivers that do consider this a problem we explicitly
set non mipmapped filters before calling glCheckFramebufferStatusEXT. The
filters will later be reset when the texture is actually used for rendering
according to the filters set on the corresponding CoglMaterial.
Since an actor can only be parented to one container we don't need
the extra complications of maintaining a list of ChildMeta objects
attached to an actor in the default implementation of the Container
interface.
Instead of using ClutterActor for the base class of the Stage
implementation we should extend the StageWindow interface with
the required bits (geometry, realization) and use a simple object
class.
This require a wee bit of changes across Backend, Stage and
StageWindow, even though it's mostly re-shuffling.
First of all, StageWindow should get new virtual functions:
* geometry:
- resize()
- get_geometry()
* realization
- realize()
- unrealize()
This covers all the bits that we use from ClutterActor currently
inside the stage implementations.
The ClutterBackend::create_stage() virtual function should create
a StageWindow, and not an Actor (it should always have been; the
fact that it returned an Actor was a leak of the black magic going
on underneath). Since we never guaranteed ABI compatibility for
the Backend class, this is not a problem.
Internally to ClutterStage we can finally drop the shenanigans of
setting/unsetting actor flags on the implementation: if the realization
succeeds, for instance, we set the REALIZED flag on the Stage and
we're done.
As an initial proof of concept, the X11 and GLX stage implementations
have been ported to the New World Order(tm) and show no regressions.
The old code checked whether the property began with 'signal-' and
then checked for 'signal-swapped' and 'signal-after'. This prevented
you from animating a property called for example 'signal-strength'.
The check for the prefix is now in a separate function which also adds
a 'signal-swapped-after' prefix for completeness.
Fixes bug:
http://bugzilla.openedhand.com/show_bug.cgi?id=1798
The blend string compiler checks that the syntax of a function name is
[A-Za-z_]*, preventing the use of DOT3_RGB[A].
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
The column names are optional - ClutterModel will use the GType name
if there is no user-specified column name. Hence, the ::finalize vfunc
should not try to free an empty column names vector.
Fixes bug:
http://bugzilla.openedhand.com/show_bug.cgi?id=1790
The default floating point type for JSON is double precision; this means
that we need to conver to single precision when setting a property with
type G_TYPE_FLOAT.
Currently, to update a property inside an animation you have to
get the interval for that property and then call the set_final_value()
method.
We can provide a simpler, bind()-like method for the convenience of
the developers that just validates everything and then calls the
Interval.set_final_value().
Right now we just check for a NULL stage before calling glXMakeCurrent().
We can, though, get a valid stage without an implementation attached to
it while we are disposing a stage after a CLUTTER_DELETE event, since the
events processing is performed on a vblank-locked basis.
ClutterClone bases its preferred size on the preferred size of
the source actor, so it needs to invalid its cached preferred
size when the preferred size of the source actor changes.
In order for this to work, we need to have notification when
the size of the source actor changes, so add a ::queue-relayout
signal to ClutterActor.
Then connect to this from ClutterClone and queue a relayout
on the clone when a relayout is queued on the source.
http://bugzilla.openedhand.com/show_bug.cgi?id=1755
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
This reverts commit 3c47a3beb5.
Of course I remembered just after pushing the patch why we hadn't done
this before :-) If you look in the glsl spec:
http://www.khronos.org/registry/gles/specs/2.0/es_full_spec_2.0.24.pdf
Section 3.7.10 Texture Completeness and Non-Power-Of-Two Textures
you can see GLES 2.0 doesn't support mipmaps for npot textures.
There is possibly some way we could support this in Cogl but at least
it's not as simple as or-ing in the feature flag, sadly.
The core GLES2 API supports NPOT textures, i.e. there is no extension as for
OpenGL, so we now add COGL_FEATURE_TEXTURE_NPOT to the feature flags in
_cogl_features_init.
Thanks to Gordon Williams for spotting this.
Don't let stringify.sh write to the $srcdir + use the BUILT_SOURCES var in
Makefile.am so as to ensure all .c. and .h files get generated from their
corresponding .glsl files before building other targets.
If the timeline is running backwards, the completed signal handler should
set the final state from the interval's initial value.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
When rendering a glyph run from a texture we were premultiplying the
colour once in display_list_render() and then again in
display_list_render_texture(). This was causing the color to come out
wrong. This fixes bug #1775.
Thanks to Pierre-Luc Beaudoin for reporting.
The wrong part of an expression was bracketed in the test to determine
when a new texture matrix needed to be loaded which resulted in the
first pass through _cogl_material_layer_flush_gl_sampler_state
not uploading any user matrix.
clutter_text_move_word_backward/forward() calls did not use the
start argument consistently. Also, clutter_text_move_word_forward()
bound check checked the wrong end.
Fixes#1765
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
When a letter key is pressed with the control key held down one of
three things will happen :-
a) If the stage is embedded within a GtkClutterEmbed the unicode value
will be filled from gdk_keyval_to_unicode. This will be the same
value as if control was not pressed (so Ctrl+V will be 'v').
b) If the stage is not in a GtkClutterEmbed and Clutter is running on
the X11 backend then it will try to fill in the unicode value from
XLookupString. This *will* take into account the control so the
unicode value will represent a control character (Ctrl+V will be
'\x16').
c) Most other backends will not bother to fill in the unicode
value. Therefore clutter_keysym_to_unicode will be used which also
does not take into account the control key (so Ctrl+V will be 'v').
For cut and paste to work in Nbtk, the control keys need to bubble up
to the parent NbtkEntry container. This works fine for 'b' but not 'a'
and 'c'.
This patch makes ClutterText always allow the event to bubble if the
key is not handled by the binding pool and the control modifier is
down.
Ideally ClutterText would always get a unicode value that takes into
account the modifiers but this is probably best left up to the input
methods.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
g-ir-compiler currently opens the library for the .gir it is compiling;
to make that work we need to set LD_LIBRARY_PATH before running
g-ir-compiler to include .libs.
(I think this may have been working earlier because there was a
hack that substituted .so with .la and tried opening that; that
works for the incorrect libclutter-glx-1.0.so but not for the
correct libclutter-glx-1.0.so.0)
http://bugzilla.openedhand.com/show_bug.cgi?id=1771
Update the sed hack for the shared library to be more robust.
Remove the --shared-library command line argument from g-ir-scanner,
as no distribution will ever ship the .la files. This effectively
reverts commit 68f8a98cfb.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Use the --shared-library option to specify the shared object to link
against when compiling the typelib from the GIR data.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Following bug #1762, the syntax of g-ir-scanner was changed in
gobject-introspection, so Clutter does not build anymore with 0.6.4.
See the bugzilla bug:
http://bugzilla.gnome.org/show_bug.cgi?id=591669
GObject-Introspection now uses a different mechanism to extract the
SONAME when building the gir file and it needs the libtool archive as
option.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
When dumping a ClutterUnits structure to a string we are using a bare
g_strdup_printf(), which unfortunately is locale dependant. So, for
instance, a type of CLUTTER_UNIT_EM and a value of 42 are stringified
as:
C: 42.00 em
en_GB 42.00 em
it_IT 42,00 em
fr_FR 42,00 em
This would not be a problem -- clutter_units_from_string() allows both
'.' and ',' as fractionary part delimiters. The test suite, on the
other hand, does not know that, and it checks for exact matches with
the C locale.
Calling setlocale(LC_ALL,"C") at the beginning of the conformance test
suite is not a good idea, because it would prevent external testing; and
it's a lame cop out from doing exactly what we have to do -- pick a format
and stick with it.
Like other platforms, languages and frameworks before us, we opt to
be less liberal in what we create; so, we choose to always stringify
ClutterUnits with fractionary parts using '.' as the delimiter.
Fixes bug:
http://bugzilla.openedhand.com/show_bug.cgi?id=1763
Clutter advertises itself on X11 as implementing the _NET_WM_PING protocol,
which is needed to be able to detect frozen applications; this allows us to
stop the destruction of the stage by blocking the CLUTTER_DELETE event and
wait for user feedback without the Window Manager thinking that the app has
gone unresponsive.
In order to implement the _NET_WM_PING protocol properly, though, we need
to add the _NET_WM_PID property on the Stage window, since the EWMH states:
[_NET_WM_PID] MAY be used by the Window Manager to kill windows which
do not respond to the _NET_WM_PING protocol.
Meaning that an unresponsive Clutter application might not be killable by
the window manager.
Fixes bug:
http://bugzilla.openedhand.com/show_bug.cgi?id=1748
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
* Do _not_ use CLUTTER_MAJORMINOR to define the installation path
for the headers; we must use CLUTTER_API_VERSION for that.
* Do not put the C compiler flags in the INCLUDES directive.
Bases on a patch by: Gary Ching-Pang Lin <glin@novell.com>
It is possible to unset the size of an actor specified with set_width()
and set_height() by using:
clutter_actor_set_size (actor, -1, -1);
Which works by unsetting the :min-*-set and the :natural-*-set properties.
Calling set_width(-1) and set_height(-1) separately, though, doesn't work
thus implicitly breaking the assumption that set_size() is nothing more
than set_width()+set_height(). This was obviously due to the face that
pre-1.0 set_width() and set_height() took an unsigned integer as an
argument.
ClutterActor parses positional and dimensional properties with a
custom deserializer. We need to:
- handle G_TYPE_INT64, the default integer type for JSON-GLib
- use G_TYPE_FLOAT for properties, since Actor switched to it
for the pixel-based ones
This makes ClutterScript work again.
The json-types.h header is found by the mere fact of it being
in the project; if we are compiling against the system JSON-GLib
this could be horribly out of date.
We need to use clutter-json.h, which will include the right
header for us.
JSON-GLib moved to a single include scheme, so we should only include
json-glib.h. If we use the internal copy it doesn't matter, since the
header does the right thing.
The clutter-script-parser.c does not have a copyright and license
notices; even though the LGPL is a per-project license and not a
per-file license, having those notices in every source file is a
good idea.
The OS X backend Makefile.am was missing a line concatenation, and
so the -xobjective-c directive was always ignored.
Instead of dumping everything into INCLUDES and LDADD we should follow
what the rest of the backends do, and use per-target CFLAGS and LDADD,
and reserve the INCLUDES to -D and -I directives.
Thanks to: Christian Hergert <chris@dronelabs.com>
Don't install inside the clutter-MAJOR_MINOR/ directory, but use
the API_VERSION (1.0).
Otherwise we'd have the Clutter headers for 1.x inside:
$includedir/clutter-1.0/clutter
And the JSON-related headers inside:
$includedir/clutter-1.<minor>/clutter
The fix for bug 1750 inside commit b190448e made Clutter-GTK spew
BadWindow errors. The reason for that is that we call XDestroyWindow()
without checking if the old Window is None; this happens if we call
clutter_x11_set_stage_foreign() on a new ClutterStage before it has
been realized.
Since Clutter-GTK does not need to realize the Stage it is going to
embed anymore (the only reason for that was to obtain a proper Visual
but now there's ClutterBackendX11 API for that), the set_stage_foreign()
call is effectively setting the StageX11 Window for the first time.
