On high DPI density displays we create surfaces with a size scaled up by
a certain factor. Even if the contents stay at the same relative size
and position, we need to compensate the scaling both when changing the
surface size, and when dealing with input.
https://bugzilla.gnome.org/show_bug.cgi?id=705915
In order to transparently support high DPI density displays, we must
maintain all coordinates and sizes exactly as they are now — but draw
them on a surface that is scaled up by a certain factor. In order to
do that we have to change the viewport and initial transformation
matrix so that they are scaled up by the same factor.
https://bugzilla.gnome.org/show_bug.cgi?id=705915
The added support is very very basic (single touch, motion only,
no acceleration, no pressure recognition), but anything more
complex requires a state machine that will be hopefully provided
by libinputcommon in the future.
And at least, with this patch the pointer moves, which will be
useful for people testing wayland in 3.10 without a physical mouse.
https://bugzilla.gnome.org/show_bug.cgi?id=706494
In situations when the default backend would fail (for example
when compiled with X11 support but run without DISPLAY), or
when the application is using backend specific code, it makes
sense to let the application choose the backend explicitly.
https://bugzilla.gnome.org/show_bug.cgi?id=707869
It was a bad idea to add it, because clutter events are batched,
so by the time the application processes one, the keyboard state
internally tracked by clutter could be already different.
Instead, apps should use clutter_event_get_state_full()
https://bugzilla.gnome.org/show_bug.cgi?id=706494
We can't dispatch a motion event for EV_REL (because we don't
have yet the other half of the event), but we can't also queue
them at the end of processing (because we may lose some history
or have button/keys intermixed).
Instead, we use EV_SYN, which means "one logical event was
completed", and let the winsys-independent code do the actual
motion compression.
https://bugzilla.gnome.org/show_bug.cgi?id=706494
When we release a device, we lose all the events after that point,
so our state can become stale. Similarly, we need to sync the
state with the effectively pressed keys when we reclaim.
This ensures that modifier keys don't get stuck when switching
VTs using a keybinding.
https://bugzilla.gnome.org/show_bug.cgi?id=706494
When talking to other applications or serializing the modifier
state (and in particular when implementing a wayland compositor),
the effective modifier state alone is not sufficient, one needs
to know the base, latched and locked modifiers.
Previously one could do with backend specific functionality
such as clutter_device_manager_evdev_get_xkb_state(), but the
problem is that the internal data structures are updated as
soon as the events are fetched from the upstream source, but
the events are reported to the application some time later,
and thus the two can get out of sync.
This way, on the other hand, the information is cached in the
event, and provided to the application with the value that
was current when the event was generated.
https://bugzilla.gnome.org/show_bug.cgi?id=706494
These two devices are logically tied togheter, and their state
should always be the same. Also, we need to update them after
the event is queued, as the current modifier state (as opposed to the
modifier mask in the event) should include also the effect of the last
key press/release.
https://bugzilla.gnome.org/show_bug.cgi?id=706494
Add a new callback that is called prior to emitting pointer
motion events and that can modify the new pointer position.
The main purpose is allowing multiscreen apps to prevent the
pointer for entering the dead area that exists when the screens
are not the same size, but it could also used to implement
pointer barriers.
A callback is needed to make sure that the hook is called early
enough and the Clutter state is always consistent.
https://bugzilla.gnome.org/show_bug.cgi?id=706652
If we don't get passed a CoglFramebuffer when creating the root paint
node then we ask Cogl to give us the current draw buffer.
This allows the text-cache conformance test to pass, but it'll require
further investigation.
Currently the default values according to their param spec don't
match the actually used defaults, so update the former to reflect
the actual behavior.
https://bugzilla.gnome.org/show_bug.cgi?id=703809
Whether a child should receive extra space should be determined
by the expand property, not [xy]_fill (which just determine how
additional space should be used). The behavior is already correct
when using the ClutterActor:[xy]_expand properties, but needs
fixing for the corresponding ClutterBoxLayoutChild property.
https://bugzilla.gnome.org/show_bug.cgi?id=703809
Just as BoxLayout, BinLayout uses an odd interpretation of the box
passed into allocate(): to define a child area of (w x h) starting at
(x, y), callers need to pass a box of (x, 2 * x + w, y, 2 * y + h).
This behavior is just confusing, change it to use the full box for
child allocations.
https://bugzilla.gnome.org/show_bug.cgi?id=703809
Currently, BoxLayout interprets the box passed into allocate() in
a fairly peculiar way:
- in the direction of the box, all space between [xy]1 and [xy]2
is distributed among children (e.g. children occupy the entire
width/height of the box, offset by [xy]1)
- in the opposite direction, expanded children receive space
between [xy]1 and the height/width of the box (e.g. children
occupy the width/height of the box minus [xy]1, offset by [xy]1)
The second behavior doesn't make much sense, so adjust it to interpret
the box parameter in the same way as the first one.
https://bugzilla.gnome.org/show_bug.cgi?id=703809
The implicitly created transitions are removed when complete by the
implicit transition machinery. The remove-on-complete hint is for
user-provided transitions.
https://bugzilla.gnome.org/show_bug.cgi?id=705739
ClutterTransition:remove-on-complete uses the ClutterTimeline::stopped
signal, as it's the signal that tells us that the timeline's duration
has fully elapsed.
Mouse wheel events come as EV_REL/REL_WHEEL, and we can convert
them to clutter events on the assumption that scrolling with
the wheel is always vertical.
https://bugzilla.gnome.org/show_bug.cgi?id=705710
xkb_state_update_key() needs to be called only on state transitions,
otherwise the state tracking gets confused and locks certain modifiers
forever.
https://bugzilla.gnome.org/show_bug.cgi?id=705710
A wayland compositor needs to have more keyboard state than
ClutterModifierState exposes, so it makes sense for it to use
xkb_state directly. Also, it makes sense for it to provide
it's own keymap, to ensure a consistent view between the compositor
and the wayland clients.
https://bugzilla.gnome.org/show_bug.cgi?id=705710
All evdev devices are slave devices, which means that xkb state
and pointer position must be shared by emulating a core keyboard
and a core pointer. Also, we must make sure to add all modifier
state (keyboard and button) to our events.
https://bugzilla.gnome.org/show_bug.cgi?id=705710
Hardware keycodes in Clutter events are x11 keycodes, which are
the same as evdev + 8, but we need to reverse the translation when
explicitly asked for an evdev keycode.
https://bugzilla.gnome.org/show_bug.cgi?id=705710
In some cases, applications (or actually, wayland compositors)
don't have the required permissions to access evdev directly, but
can do so with an external helper like weston-launch.
Allow them to do so with a custom callback that replaces the regular
open() path.
https://bugzilla.gnome.org/show_bug.cgi?id=704269
This is necessary to avoid a deadlock with the compositor. When setting
a stage size before the stage was shown this would trigger a redraw
inside clutter_stage_wayland_resize. This redraw would result
in a call into eglSwapBuffers which would attach a buffer to the surface
and commit. Unfortunately this would happen before the role for the
surface was set. This would result in the compositor not relaying to the
client that the desired frame was shown.
With this change the call to wl_shell_surface_set_toplevel is always
made before the first redraw.
https://bugzilla.gnome.org/show_bug.cgi?id=704457
We should not create a shell surface and set the role for that shell
surface if the surface was a foreign one provided through
clutter_wayland_set_wl_surface
https://bugzilla.gnome.org/show_bug.cgi?id=699578
This adds support for optionally a providing a foreign Wayland surface
to a ClutterStage before it is first show. Setting a foreign surface
prevents Cogl from allocating a surface and shell surface for the stage
automatically.
v2: add CLUTTER_AVAILABLE_IN_1_16 annotation and API reference docs
(review from Emmanuele Bassi)
v3: set a boolean to indicate that this stage is using a foreign surface
(Rob Bradford)
https://bugzilla.gnome.org/show_bug.cgi?id=699578
This allows the integration of Clutter with another library, like GTK+,
that is dispatching the events itself. This is implemented by calling
into the cogl_wayland_renderer_set_event_dispatch_enabled() and since
that function must be called on the newly created renderer the newly
added clutter_wayland_disable_event_retrieval must be called before
clutter_init()
https://bugzilla.gnome.org/show_bug.cgi?id=704279
Since commit 4543ed6ac3 in Cogl, Cogl will now try to consume
Windows message itself. This doesn't really cause any problems because
both message loops just call DispatchMessage which will cause the
message to be routed through Clutter's window procedure either way.
However, it's not great to have two sources listening for messages so
this patch disables Cogl's message retrieval.
https://bugzilla.gnome.org/show_bug.cgi?id=701356
This removes a bit of work that we have to do for every device, and makes it
easy for mutter to patch out parts of the event mask it doesn't want.
https://bugzilla.gnome.org/show_bug.cgi?id=703969
The Wayland 1.0 API allows orthoganal components of an application to
query the shell and compositor themselves by querying their own
wl_registry. The corresponding API in Cogl has been removed so Clutter
shouldn't call it anymore.
https://bugzilla.gnome.org/show_bug.cgi?id=703878
The Wayland server API has changed so that wl_shm_buffer is no longer
a type of wl_buffer and wl_buffer will become an opaque type. This
changes ClutterWaylandSurface to accept resources for a wl_buffer
instead of directly taking the wl_buffer so that it can do different
things depending on whether the resource points to an SHM buffer or a
normal buffer. This matches similar changes to Cogl:
https://git.gnome.org/browse/cogl/commit/?id=9b35e1651ad0e46ed48989https://bugzilla.gnome.org/show_bug.cgi?id=703608
Cogl 1.16 has deprecated a lot of API which it will be difficult for
Clutter to catch up with. For the time being the warnings are just
being disabled to keep the build output clean.
https://bugzilla.gnome.org/show_bug.cgi?id=703877
There is no reasonable use case for having the functions, the virtual
functions, and the signals for realization and unrealization; the
concept belongs to an older era, when we though it would have been
possible to migrate actors across different GL contexts, of in case a GL
context would not have been available until the main loop started
spinning. That is most definitely not possible today, and too much code
would utterly break if we ever supported that.
The majority of Clutter input events require a time so that that the
upper levels of abstraction can identify the ordering of events and also
work out a click count.
Although some Wayland events have microsecond timestamps not all those
that Clutter expects do have. Therefore we would need to create some
fake times for those events. Instead we always calculate our own time
using the monotonic time.
https://bugzilla.gnome.org/show_bug.cgi?id=697285
If we allow content repeats on the texture nodes, then we need to use
the "automatic" wrap mode for the texture layer in the pipeline, instead
of the clamp-to-edge one.
Reported-by: Matthew Watson <matthew@endlessm.com>
Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
This reverts commit 6dd9da05c7.
Windowing system features we need are not mapped on cogl_has_feature().
Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
Cogl (as of 0b2b46ce) now only sets the shell surface as toplevel when
the CoglOnscreen is shown.
Without calling wl_shell_surface_set_toplevel the compositor will not
know what role to give to the compositor and thus the stage will not
appear.
When we look to support multiple roles / foreign surfaces we will need
to revisit this call and ensure we only call it when we are working in
the default case.
https://bugzilla.gnome.org/show_bug.cgi?id=703188
Since Cogl also polls on this file descriptor we can get into situations
where our event source is woken up to handle events but those events
have instead been handled by Cogl resulting in the source sitting in
poll().
We can safely rely on Cogl to handle the polling on the event source and
to dispatch those events.
https://bugzilla.gnome.org/show_bug.cgi?id=702202
When the cursor visibility changes, we have to relayout the ClutterText
actor instead of just redrawing it - as the cursor changes the
PangoLayout size, a size request cycle is needed.
https://bugzilla.gnome.org/show_bug.cgi?id=702610
While we still don't want to perform implicit transitions on unmapped
actors, we can relax the requirement on having been painted once; the
was_painted flag was introduced to avoid performing implicit transitions
on the :allocation property, but for that we can use the
needs_allocation flag instead, as needs_allocation will be set to FALSE
when we have been painted as well.
Thus, we retain our original goal of not having actors "flying" into
position on their first allocation, without the side effect of
preventing animations when emitting the ::show signal.
When setting the font using clutter_text_set_font_description(), the
font settings on a ClutterText actor can be reset when there is a dpi
changes signaled by the backend.
https://bugzilla.gnome.org/show_bug.cgi?id=702016
1ddef9576d87c98fafbcefe3108f04866630c2cd had its logic the
wrong way round, a gesture should begin as soon as the requested number
of touchpoints is reached. Correcting this fixes tap events
https://bugzilla.gnome.org/show_bug.cgi?id=700980
When we changed the MetaGroup to handle internal effects, we updated
has_effects(), but forgot to fix the equivalent has_constrains() and
has_actions() method.
Now, if we clear the constraints or the actions on an actor, and we
call has_constraints() or has_actions(), we get an false positive.
When using a ClutterOffscreenEffect, the size of the offscreen buffer
allocated to perform the effect is currently computed using the paint
volume of the actor it's attached to and in the case the paint volume
cannot be computed, the effect falls back to using the stage's size.
If you scale an actor enough so its paint volume is much bigger that
the size of the stage, you can end up running out of memory (which
leads to your application crashing).
https://bugzilla.gnome.org/show_bug.cgi?id=699675
The "should this implicit transition be skipped" check should live into
its own function, where we can actually explain what it does and which
conditions should be respected.
Instead of just blindly skipping actors that are unmapped, or haven't
been painted yet, we should add a couple of escape hatches.
First of all, we don't want :allocation to be implicitly animated until
we have been painted (thus allocated) once; this avoids actors "flying
in" into their allocation.
We also want to allow implicit transitions on the opacity even if we
haven't been painted yet; the internal optimization that we employ in
clutter_actor_paint() and skips painting fully transparent actors is
exactly that: an internal optimization. Caller code should not be aware
of this change, and it should not influence code outside of ClutterActor
itself.
The rest of the conditions are the same: if the easing state's duration
is zero, or if the actor is both unmapped and not in a cloned branch of
the scene graph, then implicit transitions are pointless, as they won't
be painted.
https://bugzilla.gnome.org/show_bug.cgi?id=698766
This should actually ensure that the calculations of the Z translation
for the projection matrix is resolved to "variable * CONSTANT". The
original factors are left in code so it's trivial to revert to the
trigonometric operations if need be, even without reverting this commit.
The ClutterActor::paint signal is deprecated, and connecting to it even
to get notifications will disable clipped redraws because of violations
of the paint volume.
The only actual valid use case for notifications of a successful frame
is on the ClutterStage, so we should add new (experimental) API for it,
so that users can actually subscribe to it — at least if you're writing
a compositor.
Shoving a signal in a performance critical path is not an option, and
I'm not sure I want to commit to an API like this yet. I reserve the
right to revisit this decision in the future.
https://bugzilla.gnome.org/show_bug.cgi?id=698783
Currently, clutter_canvas_set_size() causes invalidation of the canvas
contents only if the newly set size is different. There are cases when
we want to invalidate the content regardless of the size set, but we
cannot do that right now without possibly causing two invalidations,
for instance:
clutter_canvas_set_size (canvas, new_width, new_height);
clutter_content_invalidate (canvas);
will cause two invalidations if the newly set size is different than
the existing one. One way to work around it is to check the current
size of the canvas and either call set_size() or invalidate() depending
on whether the size differs or not, respectively:
g_object_get (canvas, "width", &width, "height", &height, NULL);
if (width != new_width || height != new_height)
clutter_canvas_set_size (canvas, new_width, new_height);
else
clutter_content_invalidate (canvas);
this, howevere, implies knowledge of the internals of ClutterCanvas,
and of its optimizations — and encodes a certain behaviour in third
party code, which makes changes further down the line harder.
We could remove the optimization, and just issue an invalidation
regardless of the surface size, but it's not something I'd be happy to
do. Instead, we can add a new function specifically for ClutterCanvas
that causes a forced invalidation regardless of the size change. If we
ever decide to remove the optimization further down the road, we can
simply deprecate the function, and make it an alias of invalidate()
or set_size().
Since we are trying to eliminate the ClutterGeometry type, we should
replace the only entry point still using it: the ::cursor-event signal
of ClutterText.
Instead of passing the cursor geometry, we should add an accessor
function.
The combination of signal and getter for the cursor geometry means that
we can deprecate ClutterText::cursor-event, and mark it for removal in
Clutter 2.0.
https://bugzilla.gnome.org/show_bug.cgi?id=682789
On the other backends we will get some sort of expose event after
showing the stage's window which will queue a redraw. These expose
events don't exist on Wayland so nothing will cause Clutter to queue a
redraw. Weston doesn't bother displaying anything for the stage's
surface until the first buffer is sent, which of course it will never
receive if Clutter doesn't paint anything. This patch just makes it
explicitly queue a redraw after the stage is shown so that we will
always pass at least one frame to the compositor.
The bug can be seen by running test-stage-sizing. That example doesn't
have any animations so it won't try to queue any redraws until
something interacts with it. On the other hand something like
test-actors works fine without the patch because it constantly queues
redraws anyway in order to display the animation.
https://bugzilla.gnome.org/show_bug.cgi?id=696791
If clutter is built with both X11 and Wayland support, prefer the
(more complete for now) X11 backend. This matches GTK+'s current
ordering.
This allows distributions to ship a clutter version with both backends
built, and using an envvar to switch to the wayland backend and test
applications.
In the future, applications would be able to choose which backend
they prefer and in which order.
https://bugzilla.gnome.org/show_bug.cgi?id=695838
If an actor has not been painted yet, or it's not going to be painted,
we can ignore transitions queued on it.
By ignoring transitions on actors that have not been painted yet, we can
avoid doing work during the set up phase of the scene graph, as well as
avoiding actors "flying in" from nowhere.
Obviously, we have to take into account potential clones, so we need to
check that the actor is not part of a cloned branch of the scene graph,
as well as checking if the actor has mapped clones.
If an actor is unmapped then it won't be painted, so we can safely
short-circuit out of _clutter_actor_queue_redraw_full() if the mapped
flag is not set.
We need, on the other hand, make an exception for Clones, otherwise
they won't receive notification that the source actor has changed
and they won't be painted.
This allows us to ignore redraws queued on children of invisible
parents, and avoid traversing the scene graph.
Instead of using signal notifications, we should be able to keep track
of the clones of an actor from within ClutterActor itself, using private
API. There's no point in pretending that people can actually create a
Clone class out of tree, given the amount of invariants we have to punch
through in order to implement a proper replicator node of the scene
graph, so we can just skip the signal emissions and just do the right
thing at the right time.
More comments are warranted: these functions are pretty much full of
potential side effects, and I'd really like to avoid keeping everything
in my head forever.
Along with the comments and the type casting reduction, I sneaked in a
one line change that is clearly correct after reading the flow of the
whole thing: we queue only a relayout after three potential redraws have
been queued. If we manage to miss a redraw and yet still get a relayout
then it means that most of our assumptions are fundamentally wrong, and
that we ought to dump this whole business of computer programming, and
just go back to being a hunter-gatherer species.
Since XIQueryVersion, the bad API that it is, chooses the first client
version that it gets, we need to ensure that we pass XIQueryVersion the
new XI2.3 version, knowing fully well that Clutter won't be confused
by the new features.
https://bugzilla.gnome.org/show_bug.cgi?id=692466
The X server should fill in the minor version that it supports in the
case where it only supports the older version. We should not get a
BadRequest or fail the version check if we pass something higher.
https://bugzilla.gnome.org/show_bug.cgi?id=692466
Text exposed by the AtkText methods should be the text
displayed to the user (like the internal method
clutter_text_get_display_text). So it should use the password-char
if it is being used.
This is also a security concern.
The original code inside ClutterActor that dealt with Transitions
stopping was written for the ::completed signal, thus the code was
correctly handling the lifetime of the instances; when we moved to the
::stopped signal, we assumed that it worked in the same way - with less
conditions to be checked, obviously, but fundamentally similar to the
::completed signal. Sadly, I screwed up the signal definition, and the
signal ended up calling our handlers, but not the default one that did
the cleanup and released references on the Animatable instance.
After fixing the Timeline::stopped signal, we can go back to the
previous code.
Thanks to Craig Hughes for the help in tracking down this mess.
https://bugzilla.gnome.org/show_bug.cgi?id=695158
A copy and paste thinko: the ::stopped signal is using the
ClutterTimelineClass.completed slot instead of the .stopped one,
thus preventing sub-classes of ClutterTimeline from overriding the
signal's default closure.
When stopping the transition we need to release the reference we
maintain while removing the Transition from the hash table inside an
actor. If we fail to do so, the Transition is never released, which
means we leak the Animatable instance we tied to it.
https://bugzilla.gnome.org/show_bug.cgi?id=695158
The ClutterOffscreenEffect.get_target_size() method has been deprecated,
and replaced by the get_target_rect() one. We can easily switch to the
latter, and avoid the deprecation warning.
https://bugzilla.gnome.org/show_bug.cgi?id=670004
The target size is not always enough, there are cases where the offset
used to paint the target must also be available for developers
implementing an OffscreenEffect.
The get_target_rect() method returns the rectangle used to paint the
target, with the offsets in the ClutterRect:origin and the texture size
in the ClutterRect:size fields, respectively.
The get_target_size() method should be deprecated, given that its
replacement is generally more useful.
https://bugzilla.gnome.org/show_bug.cgi?id=670004
If we pass TRUE for x_align and FALSE for y_align, the full available
width should be passed to clutter_get_preferred_height, and the same
should be true in the other dimension.
https://bugzilla.gnome.org/show_bug.cgi?id=694237
Instead of directly accessing the instance fields. This removes a
compiler warning after the constification of g_get_prgname(), and it
seems to me to be generally more correct.
Instead of using a custom apply_transform(), paint(), and pick()
implementations, we can simply apply a transformation to the children of
a ScrollActor.
https://bugzilla.gnome.org/show_bug.cgi?id=686225
As wayland-client.h and wayland-server.h can't be included together,
split the Wayland backend file into clutter-backend-wayland.h, which
only defines the types, and clutter-backend-wayland-priv.h, which
actually uses the Wayland client types.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
https://bugzilla.gnome.org/show_bug.cgi?id=692851
The definition of wl_display differs between Wayland clients and
servers, and it's unsafe to include both wayland-client.h and
wayland-server.h at the same time. Fudge around this by making the
compositor public API use void * rather than struct wl_display *.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
https://bugzilla.gnome.org/show_bug.cgi?id=692851
This function is deprecated and has been replaced by set_display() on
the renderer. This is done in the get_renderer() vfunc of both the x11
and gdk backends already.
Actually cogl_xlib_set_diplay() is now a no-op and can be safely removed.
https://bugzilla.gnome.org/show_bug.cgi?id=687652
Being able to set a marker at a normalized point on a timeline, instead
of using a specific time, is a nice fit with the current Timeline class
API.
https://bugzilla.gnome.org/show_bug.cgi?id=694319
If anything in the system changes the config for fontconfig then an
XSetting will be set to record the last timestamp of the config file.
This is presumably so that applications can be notified that it has
changed and can reload the configuration. However once this setting is
set it will remain set for the lifetime of the X server. This causes
Clutter to handle the setting during the initialisation of the
backend. Previously this would cause problems because Clutter would
end up creating the default PangoFontMap before the backend has
created the CoglContext. The PangoFontMap would in turn cause the
default CoglContext to be created. Clutter will then later create its
own CoglContext which means there will be two and the first one will
be leaked. Cogl currently can't really cope with multiple contexts
being created so it falls apart.
This patch fixes it to skip reloading the config for fontconfig if
there isn't a default font map yet. The config will presumably
naturally be read with the latest values when it is finally created
anyway so it doesn't need to be read immediately.
https://bugzilla.gnome.org/show_bug.cgi?id=693696
New experimental API is added to allow changing the way that redraws
are timed for a stage to include a "sync delay" - a period after
the vertical blanking period where Clutter simply waits for updates.
In detail, the algorithm is that when the master clock is restarted
after drawing a frame (in the case where there are timelines running)
or started fresh in response to a queued redraw or relayout, the
start is scheduled at the next sync point (sync_delay ms after the
predicted vblank period) rather than done immediately.
https://bugzilla.gnome.org/show_bug.cgi?id=692901
In commit 8f4e39b6d7 the Wayland code was updated to use the new
xkbcommon API. This involved changing the common XKB code shared with
the evdev input backend. However the evdev input backend was not
modified so it wouldn't compile. This patch just makes a minor change
to update it.
https://bugzilla.gnome.org/show_bug.cgi?id=693348
Use the buffer_age extension when available to recycle backbuffer contents
instead of blitting from the back to front buffer when doing clipped redraws.
The picking is now done in a pixel that is going to be repaired during the next
redraw cycle for non static scences.
This should improve performance and avoid tearing.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=669122
This allows us to report to the backend that the stage's back buffer has been trashed
while handling picking. If the backend is keeping track of the contents of back buffers
so it can minimize how much of the stage is redrawn then it needs to know when we do pick
renders so it can invalidate the back buffer.
Based on patch from Robert Bragg <robert@linux.intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=669122
The behaviour imitates GtkEntry and ignores attributes from markup because Pango
barfs on invalid markup. Also add an example to the text-field interactive test.
https://bugzilla.gnome.org/show_bug.cgi?id=686477
As x11 considers num lock and scroll lock to be modifiers, code that
checks for an exact modifier combination will fail if naively done when
num lock or scroll lock are turned on. Applications that want to ignore
these modifiers will need to use XKB to manually mask out the modifier
state.
As it is very unlikely that applications will want to care about the
state of num lock or scroll lock for key press/key release events, mask
out the num lock and scroll lock keys automatically.
https://bugzilla.gnome.org/show_bug.cgi?id=690664
This has been disabled since February 2008, on the grounds that XFixes
didn't work reliably for hiding cursors. This has almost certainly been
fixed then and seems to work entirely reliably across a number of X
servers released in the past few years, and is definitely better than a
1x1 black dot for a cursor.
Helpfully though, where the spec states that the cursor will be hidden
when inside the specified window or one of its children, it actually
only uses the window to look up the Screen, and hides the cursor across
the entire Screen. So, when using this, we also need to track crossing
events.
If it's still broken, this needs to be fixed in the X server.
https://bugzilla.gnome.org/show_bug.cgi?id=690497
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
The _clutter_process_event() function may get called while already
servicing a _clutter_process_event() invocation (eg. when generating
ENTER events before emitting TOUCH_BEGIN).
In these cases clutter_get_current_event() would return NULL after
the inner call to _clutter_process_event() has finished, thereafter
making the current event inaccessible during the remaining portion
of the outer event emission.
By stacking the current events in ClutterMainContext instead of
simply replacing them we do not lose track of the real current event.
Also update clutter_get_current_event_time() to be consistent from a
reentrancy perspective.
https://bugzilla.gnome.org/show_bug.cgi?id=688457
Instead of placing the whole body of the function inside an if block,
let's make it clear what each part of the function does. Also, add more
comments.
GLib 2.36 will deprecate g_type_init() in favour of automatic
initialization through a constructor function. We need to add the
version check to avoid a compiler warning.
When setting an explicit transform with clutter_actor_set_transform()
and a non (0,0) pivot-point, clutter_actor_apply_transform() will fail
to roll back the pivot-point translation done before multiplying the
transformation matrix due to the "out:" label being slightly misplaced
in clutter_actor_real_apply_transform().
This works properly:
clutter_actor_set_pivot_point (actor, 0.5, 0.5);
clutter_actor_set_rotation_angle (actor, CLUTTER_Z_AXIS, 30);
This results in the actor being moved to the pivot-point position:
clutter_actor_set_pivot_point (actor, 0.5, 0.5);
clutter_matrix_init_identity(&matrix);
cogl_matrix_rotate (&matrix, 30, 0, 0, 1.0);
clutter_actor_set_transform (actor, &matrix);
This also add a conformance test checking that even when using a
pivot-point, no matter how a rotation is set the resulting
transformation matrix will be the same.
https://bugzilla.gnome.org/show_bug.cgi?id=690214
