Commit Graph

67 Commits

Author SHA1 Message Date
Emmanuele Bassi
b20e9b78e5 actor: Add :z-position and deprecate :depth
The ClutterActor:depth property has always been a bit of a misnomer:
actors are 2D flat surfaces, so they cannot have "depth"; the property
defines the position on the Z axis.

Another side effect of the :depth property is that it decides the
default paint and allocation order on insertion, and that setting it
will call the ClutterContainer.sort_depth_order() method. This has
proven to be a fairly bad design decision that we strung along from the
0.x days, as it gives a false impression of being able to change the
paint and allocation order simply by changing the position on the Z
axis — something that, in reality, requires depth testing to be enabled
during the paint sequence of an actor's parent.

For 2.0 we need a clean break from the side effects, and a better
defined interface.

ClutterActor:z-position is essentially what ClutterActor:depth is, but
doesn't call into ClutterContainer, and has a more apt name.

https://bugzilla.gnome.org/show_bug.cgi?id=679465
2012-07-11 13:22:19 +01:00
Emmanuele Bassi
1da42dd8a0 actor: Add ActorIter.is_valid()
It can be useful to check whether a ClutterActorIter is currently valid,
i.e. if the iterator has been initialized *and* if the actor to which it
refers to hasn't been updated.

We can also use the is_valid() method in the conformance test suite to
check that initialization has been successful, and that changing the
children list through the ClutterActorIter API leaves the iterator in a
valid state.
2012-06-27 21:28:01 +01:00
Lionel Landwerlin
927624d92c input-device: add APIs to grab sequences of touch events
https://bugzilla.gnome.org/show_bug.cgi?id=678279
2012-06-22 21:48:58 +01:00
Emmanuele Bassi
17539bca95 base-types: Add zero point and rect
A constant ClutterPoint for (0, 0) and a constant degenerate ClutterRect
can be useful as guards for pointers, freeing the NULL value to mean
"unset".
2012-06-10 17:54:22 +01:00
Emmanuele Bassi
762053cd28 interval: Add is_valid() method
The is_valid() method checks if the Interval has an initial and final
values and it's not still uninitialized.
2012-06-08 17:32:51 +01:00
Emmanuele Bassi
e7aa21203c actor: Add content-repeat
ClutterContent implementations may allow repeating their contents when
painting; we should provide the repeat policy on the actor, like we do
for scaling filters and content gravity.
2012-06-08 14:33:00 +01:00
Emmanuele Bassi
7ed77e98fe symbols: Add missing functions 2012-06-05 19:40:14 +01:00
Bastian Winkler
1eb869ec8f Add ClutterGridLayout
ClutterGridLayout is port of GtkGrid to a Clutter layout manager. All
the logic is taken from gtkgrid.c, so all the credits should go to
Matthias Clasen for writing this nice piece of code.

ClutterGridLayout supports adding children with it's own methods
GridLayout.attach() and GridLayout.attach_next_to() as well as
Actor.add_child() and friends. The latter adds children in a similar
fashion to ClutterBoxLayout

https://bugzilla.gnome.org/show_bug.cgi?id=677372
2012-06-05 12:28:25 +02:00
Emmanuele Bassi
65c8b11604 image: Add a data setter using GBytes
The plain C bytes array, while convenient from a C perspective, is not
well handled by language bindings: the length of the array is not
specified, and it's only just implied by the image data size, rowstride,
and pixel format.

GBytes is a read-only bytes buffer that has an implicit length; we can
use it as the storage medium so that language bindings can actually
function correctly.
2012-06-04 10:34:22 +01:00
Bastian Winkler
7f6b17bc50 layout-manager: Add a new animation API
It's similar to to the implicit animation API of ClutterActor and
compatible to deprecated API of ClutterBoxLayout and
ClutterTableLayout.

It adds :use-animations, :easing-mode, :easing-duration and
:easing-delay properties to control animations when allocation of a
child has changed. Layout manager implementers should call

use_animations = clutter_layout_manager_get_easing_state (manager,
                                                          &mode,
                                                          &duration,
                                                          &delay);

from the allocate() virtual function to access these values.

https://bugzilla.gnome.org/show_bug.cgi?id=676827
2012-05-28 19:37:10 +02:00
Emmanuele Bassi
129752e560 event: Add convenience functions for Shift and Ctrl modifiers
Instead of going through clutter_event_get_state() and checking if the
modifier mask is set, we can provide simple convenience functions to do
it for us.
2012-05-25 11:33:57 +01:00
Emmanuele Bassi
6db381978e Add missing symbols 2012-04-30 18:35:19 +01:00
Emmanuele Bassi
999bbe20a5 Add ClutterScrollActor
ClutterScrollActor is an actor that allows showing a portion of its
contents.
2012-04-27 12:30:50 +01:00
Emmanuele Bassi
78aae84d43 actor: Coalesce needs_[xy]_expand() into one method
Use the orientation enumeration instead of a per-axis method.
2012-04-27 12:30:49 +01:00
Emmanuele Bassi
90032e0019 actor: Add basic automatic expand flags
The :x-expand and :y-expand flags on ClutterActor are used to signal
that an actor should expand horizontally and/or vertically - i.e. that
its parent's layout management policy should try to assign extra space
to the actor when allocating it.

The expand flags are automatic: when set on a leaf node in the actor
tree, they will bubble up through the parent and grandparents up to the
top level actor; during allocation, the actors with children will lazily
compute whether their children needs to expand.
2012-04-27 12:30:48 +01:00
Emmanuele Bassi
024f6d40d2 keyframe-transition: Add direct accessors for key frames
This should allow modifying key frame details without requiring a full
reset of the KeyframeTransition instance.
2012-04-27 12:30:48 +01:00
Emmanuele Bassi
c500fc1844 Add ClutterTransitionGroup
The TransitionGroup class is a logical container for running multiple
transitions.

TransitionGroup is not a Score: it is a Transition that advances each
Transition it contains using the delta between frames, and ensures that
all transitions are in a consistent state; these transitions are not
advanced by the master clock.
2012-04-27 12:30:48 +01:00
Emmanuele Bassi
270894342e Add ClutterKeyframeTransition
A simple transition class that interpolates a property between key
frames.
2012-04-27 12:30:48 +01:00
Emmanuele Bassi
b2feb463bd Add a rect-contains-rect function
Similar to the contains-point one.
2012-04-27 12:30:47 +01:00
Emmanuele Bassi
695621f5ea event: Add distance and angle accessors
Let's start using ClutterPoint in the API.
2012-04-27 12:30:47 +01:00
Emmanuele Bassi
d021cc7c02 Add a function to compute the distance between points 2012-04-27 12:30:47 +01:00
Emmanuele Bassi
bc914bb8a2 Move towards an alloc/init pair for base types
Instead of a single new() constructor that both allocates and
initializes, split the allocation and initialization into two separate
functions for types that are typically used on the stack, and rarely
allocated on the heap, like ClutterPoint and friends.

This is also applied retroactively to ClutterActorBox and ClutterVertex,
given that the same considerations on usage apply to them as well; we
can add a return value to clutter_actor_box_init() and
clutter_vertex_init() in an ABI-compatible way, so that
clutter_actor_box_new() and clutter_vertex_new() can be effectively
reimplemented as "init (alloc ())".
2012-04-27 12:30:47 +01:00
Emmanuele Bassi
61f17e345a Add base geometric types
Clutter should provide some more basic geometric types - Point, Size,
Rect - so that we can use them in properties and accessors.
2012-04-27 12:30:46 +01:00
Emmanuele Bassi
e2564dd265 Deprecate ClutterCairoTexture
The ClutterCanvas content implementation should be used instead, to
avoid stringing along the ClutterTexture API and implementation.

This change requires some minor surgery, as the deprecated section
already contains an header for the previously deprecated methods; plus,
we don't want to deprecate clutter_cairo_set_source_color(). This means
creating a new header to be used for Cairo-related API.
2012-04-27 12:28:49 +01:00
Emmanuele Bassi
d15b828cc5 event: Add ClutterTouchEvent
The ClutterTouchEvent structure contains the data relative to a touch
event.
2012-03-19 14:29:24 +00:00
Emmanuele Bassi
6b07f8a3df event: Expose precise scrolling information
Some events may contain precise scrolling information coming from
devices like trackpads and touchscreens. ClutterEvent should allow
setting and getting this information.
2012-03-19 12:41:24 +00:00
Emmanuele Bassi
82bc728584 Add initializer utilities for ClutterVertex
Similar to what we did for ClutterActorBox.
2012-03-17 16:29:09 +00:00
Emmanuele Bassi
5e9d6f7257 Add some utility initializers to ClutterActorBox 2012-03-17 15:27:26 +00:00
Emmanuele Bassi
8904f7cbe4 paint-nodes: Make part of the API internal
At least for the time being, we only expose the parts of the API that we
want to use internally and for new, out-of-tree Content implementations.

The full PaintNode tree API will be made public in 1.12 once we branch
master.
2012-03-16 12:33:40 +00:00
Emmanuele Bassi
75e6560160 image: Add set_area() method
This method allows replacing an area inside the texture data used by a
ClutterImage.
2012-03-16 12:33:39 +00:00
Emmanuele Bassi
2be850f441 image: Add get_texture()
Allow retrieving the Cogl texture used by the ClutterImage.
2012-03-16 12:33:39 +00:00
Emmanuele Bassi
f90330867e Update clutter.symbols 2012-03-16 12:33:38 +00:00
Emmanuele Bassi
07bb35bbe3 Add ClutterCanvas, a drawing content 2012-03-16 12:33:37 +00:00
Emmanuele Bassi
0cf9ad82c4 symbols: Update 2012-03-15 17:01:14 +00:00
Emmanuele Bassi
4bd3583dbf actor: Add generic transition support
ClutterActor should be able to hold all transitions, even the ones that
have been explicitly created.

This will allow to add new transitions types in the future, like the
keyframe-based one, or the transition group.
2012-03-15 17:01:14 +00:00
Emmanuele Bassi
388f818f41 timeline: Add more state accessors
It should be possible to ask a timeline what is its duration, taking
into account eventual repeats, and which repeat is the one currently
in progress.

These two functions allow writing animations that depend on the current
state of another timeline.
2012-03-15 17:01:13 +00:00
Emmanuele Bassi
1511e588df actor: Add delay to the easing state
It should be possible to set up the delay of a transition, but since
we start the Transition instance before returning control to the caller,
we cannot use clutter_actor_get_transition() to do it without something
extra-awkward, like:

  transition = clutter_actor_get_transition (actor, "width");
  clutter_timeline_stop (transition);
  clutter_timeline_set_delay (transition, 1000);
  clutter_timeline_start (transition);

for each property involved. It's much easier to add a delay to the
easing state of an actor.
2012-03-15 17:01:13 +00:00
Emmanuele Bassi
dda4db378c symbols: Update 2012-03-15 17:01:13 +00:00
Joseph Scheuhammer
32f57595fe Add brightness/contrast effect
The ClutterBrightnessContrastEffect effect class allows changing the
brightness and contrast levels of an actor.

Modified-by: Emmanuele Bassi <ebassi@linux.intel.com>
Modified-by: Neil Roberts <neil@linux.intel.com>

https://bugzilla.gnome.org/show_bug.cgi?id=656156
2012-03-07 14:02:55 +00:00
Emmanuele Bassi
4da1c3efb8 snap-constraint: Fix typo that broke the get_edges() method
We were declaring a get_edges() method, but the definition was called
get_edge().
2012-03-07 12:36:43 +00:00
Emmanuele Bassi
1ac655b394 Add missing enumeration type to clutter.symbols 2012-03-06 14:21:04 +00:00
Emmanuele Bassi
229607464b Improve repaint functions
It is sometimes useful to be able to have better control on when a
repaint function is called. Currently, all repaint functions are called
prior to the stages update phase of the frame processing.

We can introduce flags to represent the point in the frame update
process in which we wish Clutter called the repaint function.

As a bonus, we can also add a flag that causes adding a repaint function
to spin the master clock.
2012-03-06 12:09:00 +00:00
Emmanuele Bassi
23e8e43d66 symbols: Add missing InputDevice symbol 2012-03-01 15:11:36 +00:00
Emmanuele Bassi
b248fbd010 Make clutter-stage-window.h a private header
It should have never been public in the first place; nothing can
implement the ClutterStageWindow interface and use it, so this is
not a break.
2012-03-01 15:07:44 +00:00
Emmanuele Bassi
e4c948b150 actor: Add a method for computing the default paint volume
Now that ClutterActor has a default paint volume, subclasses may wish
to retrieve it without chaining up to the parent's implementation of
the get_paint_volume() function.

The get_default_paint_volume() returns a ClutterPaintVolume pointer
to the paint volume as computed by the default implementation of the
get_paint_volume() virtual function; it can only be used immediately,
as it's not guaranteed to survive across multiple frames.
2012-02-27 11:59:57 +00:00
Emmanuele Bassi
6a09bf5b52 paint-volume: Add a union method for boxes
Creating PaintVolume instances is not possible, and it's not recommended
anyway. It is, though, necessary to union paint volumes, especially with
2D boxes, in some cases.

Clutter should provide a simple convenience function that allows
unioning volumes to boxes in a moderately efficient way.

https://bugzilla.gnome.org/show_bug.cgi?id=670021
2012-02-27 11:24:08 +00:00
Emmanuele Bassi
7ec975ed3d timeline: Add progress functions
The whole progress computation should not be done using a separate
class: it should be part of the Timeline class.
2012-02-23 11:23:15 +00:00
Jasper St. Pierre
114250e329 clutter.symbols: Fix up symbols 2012-02-14 16:19:33 -05:00
Emmanuele Bassi
3996ae4348 actor: Add destroy_all_children()
There are times when we don't want to remove all children and count of
the reference count to drop to 0 to ensure destruction; there are cases,
such as managed environments, where it's preferable to ensure that the
children of an actor get actually destroyed.
2012-02-13 17:42:07 +00:00
Emmanuele Bassi
97feb06a6f timeline: Add repeat-count
Being able to easily set the number of repeats has been a request for
the animation framework for some time now. The usual way to implement
this is: connect to the ::completed signal, use a static counter, and
stop the timeline when the counter hits a specific spot.

In the same light as the :auto-reverse property, we can make it easier
to implement this common functionality by adding a :repeat-count
property that, when set, limits the amount of loops that a Timeline can
perform before stopping itself.

In fact, we can implement the :loop property in terms of the
:repeat-count property just by using a sentinel value mapping to
"infinity", and map loop=FALSE to repeat-count=0, and loop=TRUE to
repeat-count=-1.
2012-02-13 17:30:22 +00:00