Commit Graph

857 Commits

Author SHA1 Message Date
Elliot Smith
ee9a4d02bb cookbook: Add example of scaling a texture
Added a simple application for scaling a
texture while keeping the mouse pointer over
the same coordinates on its surface.
2010-11-24 12:45:12 +00:00
Elliot Smith
c8f112876e cookbook: Added "animated scaling" recipe skeleton 2010-11-24 12:45:12 +00:00
Elliot Smith
b47b2f4749 cookbook: Added animated scaling example
Added an example showing scaling of an actor on
each of the scaling gravity settings (NORTH_WEST, NORTH etc.),
with a mark indicating the center being used.

Displays the transformed size and position, updated
on each paint of the actor.
2010-11-24 12:45:12 +00:00
Robert Bragg
2dba3e8cbf matrix: Adds experimental cogl_matrix_{transform,project}_points
This add two new function that allows us to transform or project an
array of points instead of only transforming one point at a time. Recent
benchmarking has shown cogl_matrix_transform_point to be a bottleneck
sometimes, so this should allow us to reduce the overhead when
transforming lots of vertices at the same time, and also reduce the cost
of 3 component, non-projective transforms.

For now they are marked as experimental (you have to define
COGL_ENABLE_EXPERIMENTAL_API) because there is some concern that it
introduces some inconsistent naming. cogl_matrix_transform_point would
have to be renamed cogl_matrix_project_point to be consistent, but that
would be an API break.
2010-11-23 12:50:29 +00:00
Emmanuele Bassi
3055cd1f4a docs: Include the Behaviour migration guide
I forgot to add the xinclude directive in the main document.
2010-11-20 13:05:51 +00:00
Emmanuele Bassi
63cef64d17 docs: Fix some wrong function/signal/property names 2010-11-18 15:21:16 +00:00
Emmanuele Bassi
74a770a976 docs: Add Behaviour migration guide 2010-11-18 15:21:16 +00:00
Emmanuele Bassi
71a838815f timeline: Add :reverse property
The :reverse property removes the pattern of connecting to the
::completed signal of a Timeline to change the direction.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2408
2010-11-18 15:18:19 +00:00
Emmanuele Bassi
b55346151c build: Cogl-2.0 API reference should be conditionally built
Building the API reference for Cogl 2.0 is fairly confusing: the API
itself is experimental and for internal use only -- though we want
feedback for it.

Let's build the API reference only when Clutter is configured with a
specific configure switch, so that people that wish to give feedback on
the API and its documentation can do it.
2010-11-17 19:15:17 +00:00
Emmanuele Bassi
3777e0b382 docs: Update the constraints example image 2010-11-16 11:01:20 +00:00
Emmanuele Bassi
b7fa13a52f docs: Add introductory section on Constraints
Use the snap-constraint code for the example code and screenshot.
2010-11-15 16:00:49 +00:00
Emmanuele Bassi
3c15c0c9bb Add SnapConstraint
A SnapConstraint is a constraint that "snaps" the edges of two actors
together.
2010-11-15 16:00:49 +00:00
Emmanuele Bassi
f3295a3f36 Merge remote branch 'elliot/cookbook-opacity-values-fix'
* elliot/cookbook-opacity-values-fix:
  cookbook: Fix opacity examples in recipe
  cookbook: Fix incorrect value for opacity
2010-11-15 15:41:46 +00:00
Emmanuele Bassi
9f2c31547c Merge remote branch 'elliot/cookbook-animations-looping'
* elliot/cookbook-animations-looping:
  cookbook: Recipe for "looping animations"
  cookbook: Clarify how signals are emitted during looped animation
  cookbook: First draft for looping animations recipe
  cookbook: Recipe skeleton for "looping animations"
  cookbook: Looping animation examples
2010-11-15 15:37:42 +00:00
Elliot Smith
8bdfa4ddee cookbook: Recipe for "looping animations"
Added a recipe giving examples of how to loop
animations for each part of the animation API (implicit,
animator, state).

The discussion covers looping a fixed number of times
and inverting a single implicit animation to create
a loop which goes back to its start on each iteration.
2010-11-15 11:23:04 +00:00
Elliot Smith
e205bd0fdc cookbook: Clarify how signals are emitted during looped animation
Added a comment to the example code about how timeline
emits "completed" during looped animation, while the
animation itself doesn't.
2010-11-15 11:23:04 +00:00
Elliot Smith
7eb248b1f0 cookbook: First draft for looping animations recipe
Includes video showing the looped animation and
basic section headings, plus outline of content and notes.
2010-11-15 11:23:04 +00:00
Elliot Smith
071029e373 cookbook: Recipe skeleton for "looping animations" 2010-11-15 11:23:04 +00:00
Elliot Smith
0d8c730558 cookbook: Looping animation examples
Added code examples for creating a looped animation with
each of the animation approaches (implicit, ClutterAnimation,
ClutterState).
2010-11-15 11:23:04 +00:00
Elliot Smith
f9d2310b72 cookbook: Make example code C90 compliant
Modified all cookbook example code to prevent ISO C90 compliance
warnings occurring during compilation.
2010-11-12 10:18:31 +00:00
Elliot Smith
63721c5db1 cookbook: Fix opacity examples in recipe
The recipe had examples where opacity was set using
fractional numbers. Fixed all examples to use
integers only.
2010-11-12 09:59:33 +00:00
Elliot Smith
f135f2e7d5 cookbook: Fix incorrect value for opacity
Opacity is a guint, so don't use floating point numbers
to set its value.
2010-11-12 09:59:33 +00:00
Emmanuele Bassi
dfdd591414 Merge branch 'wip/static-colors'
* wip/static-colors:
  Move tests to static colors where possible
  color: Add named, global colors
2010-11-11 17:53:42 +00:00
Robert Bragg
21c7403011 docs: Adds an initial cogl-2.0 reference manual
So we can keep track of the experimental progress of Cogl 2.0 features
this adds a standalone Cogl 2.0 Reference Manual which doesn't cover
the deprecated 1.x symbols and removes the need for a "Cogl
experimental API" chapter since those sections now make up the main
table of contents.
2010-11-11 13:17:26 +00:00
Emmanuele Bassi
985518c601 color: Add named, global colors
Since EGA colors are apparently all the rage in other toolkits, Clutter
should not be left out. On top of the usual CGA/EGA palette the static
colors also include the Tango Icon palette, which at least is more
pleasant to the eye.

Static colors are accessed through an enumeration by using
clutter_color_get_static(), or using the short-hand pre-processor
macros.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2066
2010-11-11 13:14:23 +00:00
Emmanuele Bassi
b4588b57df reference: Add a Wayland section 2010-11-08 16:15:23 +00:00
Emmanuele Bassi
b783d77e6a gtk-doc: Add PathConstraint to the Clutter API reference 2010-11-08 16:08:17 +00:00
Emmanuele Bassi
4909ecc71e gtk-doc: Fixes for the API references 2010-11-08 16:01:19 +00:00
Robert Bragg
701a693661 cogl: Adds {push,pop,get}_source functions
This exposes the idea of a stack of source materials instead of just
having a single current material. This allows the writing of orthogonal
code that can change the current source material and restore it to its
previous state. It also allows the implementation of new composite
primitives that may want to validate the current source material and
possibly make override changes in a derived material.
2010-10-26 12:08:20 +01:00
Emmanuele Bassi
ef6b46d826 Merge branch 'wip/path-constraint'
* wip/path-constraint:
  docs: Add PathConstraint
  tests: Add a PathConstraint interactive test
  Add ClutterPathConstraint
  actor-box: Add setters for origin and size
2010-10-25 17:09:46 +01:00
Emmanuele Bassi
f6ab7eccd9 docs: Add PathConstraint 2010-10-25 16:09:40 +01:00
Emmanuele Bassi
3f6ec0ba5a actor-box: Add setters for origin and size 2010-10-25 15:45:35 +01:00
Neil Roberts
e66c679e84 win32: Add a public clutter_win32_handle_event function
This function handles a single windows message. The idea is that it
could be used by clutter-gtk to forward on events from a
GdkEventFilter. The function replaces the old message_translate()
function. That function didn't translate the event anymore anyway and
instead it could generate multiple events so
clutter_win32_handle_event seems like a more appropriate name. The
function returns TRUE or FALSE depending on whether the event was
completely handled instead of setting call_window_proc.
2010-10-25 13:19:17 +01:00
Damien Lespiau
7b7b655e6e build: Dist cookbook.xsl
cookbook.xsl was not in EXTRA_DIST, so the cookbook was not buildable
with released tarballs.
2010-10-22 06:52:27 +01:00
Emmanuele Bassi
d5376bf317 color: Add Color.interpolate() method
The interpolate() method does what it says on the tin: it interpolates
between two colors using the given factor.

ClutterColor uses it to register a progress function for Intervals.
2010-10-11 15:39:19 +01:00
Emmanuele Bassi
7728ea951b docs: Add unused symbols to the Clutter API reference 2010-10-04 09:08:07 +01:00
Emmanuele Bassi
df5702e463 docs: Update the RELEASING checklist 2010-10-03 16:37:41 +01:00
Emmanuele Bassi
87bb089b57 docs: Update the coding style
Resynchronize with gtk+'s coding style document, since they switched to
ours.
2010-10-03 11:02:56 +01:00
Emmanuele Bassi
7ac84cf7a3 container: Add child_notify() wrapper
The child_notify() virtual function on ClutterContainer does not have a
wrapper for implementations to call.
2010-09-30 14:58:23 +01:00
Emmanuele Bassi
6a95457b3f cookbook: Remove unused variable from the animator example 2010-09-30 12:32:08 +01:00
Elliot Smith
cb191ff6f1 cookbook: Add recipe about handling button events
Recipe covers adding handlers for button-press-event and
button-release-event signals on actors, and how to
examine the content of a ClutterButtonEvent via API functions.

The discussion section explains about click count
(the criteria for how clicks get counted, including
distance and time settings); how button numbers are reported;
and how to use ClutterClickAction as an alternative
for press + release in certain scenarios.
2010-09-30 11:12:14 +01:00
Elliot Smith
94439e5526 cookbook: Example of using button press and release events
A longer example of using button press and release events
to draw rectangles with random colors.
2010-09-30 10:48:07 +01:00
Elliot Smith
0cda6c006b cookbook: Example of ClutterClickAction
Example of handling clicks on an actor; part of the recipe on
handling button events.
2010-09-30 10:48:07 +01:00
Elliot Smith
fc9ecdf82e cookbook: Example of simple handling of button events
Added an example showing how to examine the content
of a ClutterButtonEvent in a signal handler.
2010-09-30 10:48:07 +01:00
Emmanuele Bassi
66b0c1969c Remove the internal copy of JSON-GLib
The internal copy of JSON-GLib was meant to go away right after the 1.0
release, given that JSON-GLib was still young and relatively unknown.

Nowadays, many projects started depending on this little library, and
distributions ship it and keep it up to date.

Keeping a copy of JSON-GLib means keeping it up to date; unfortunately,
this would also imply updating the code not just for the API but for the
internal implementations.

Starting with the 1.2 release, Clutter preferably dependend on the
system copy; with the 1.4 release we stopped falling back automatically.
The 1.6 cycle finally removes the internal copy and requires a copy of
JSON-GLib installed on the target system in order to compile Clutter.
2010-09-29 15:57:28 +01:00
Emmanuele Bassi
044809edb8 docs: Add PaintVolume to the API reference
And document the various related functions.
2010-09-29 15:12:57 +01:00
Elliot Smith
34407c14b0 cookbook: Reduce complexity of sample ClutterAnimator code for recipe
http://bugzilla.clutter-project.org/show_bug.cgi?id=2341

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-24 14:48:53 +01:00
Emmanuele Bassi
4533edeef0 cookbook: Further clarification of the anchor point
Make sure to add a note on the behaviour of the anchor point. Ideally,
it would be nice to have a recipe about it in the Actor section.
2010-09-23 17:03:17 +01:00
Elliot Smith
ce0bd4e26c cookbook: Recipe for "moving actors"
This recipe explains how to use the three animation
approaches (implicit, State, Animator) to animate movement
of actors.

Includes some guidelines about which approach to use when, with
a full code example for each approach.

The discussion section covers some subtleties around animated
movement; namely: moving actors out of their containers; anchor
points and movement; moving in the depth axis; interactions
between animated movement and constraints.
2010-09-23 16:24:21 +01:00
Elliot Smith
b8d36a364f cookbook: Fixed markup in animations section
Fixed indentation on some mark-up in an unrelated recipe.
2010-09-23 16:24:21 +01:00
Elliot Smith
6307876552 cookbook: Example of animated movement with ClutterAnimator
Added an example showing how to randomly animate the
simultaneous movement on the x axis of three actors,
using ClutterAnimator.
2010-09-23 16:24:21 +01:00
Elliot Smith
f1b2f1e8c5 cookbook: Example of animated movement with ClutterState
Added an example showing how to move two actors between
two states (one minimised, one maximised) using ClutterState
to do the movement. Also shows how movement can be mixed
with other animation (in this case, scaling).
2010-09-23 16:24:21 +01:00
Elliot Smith
5bca30300e cookbook: Example of simple movement animation
Added example showing how to move an actor in one of the
three axes (x,y,z) in response to a button event on the
actor.
2010-09-23 16:24:21 +01:00
Robert Bragg
37d0dbe6b2 docs: Put deprecated Cogl symbols into new section
This adds a "Cogl deprecated API" chapter to the Cogl reference manual
so we can group all the documentation for deprecated symbols together
instead of having them clutter up the documentation of symbols we would
rather developers used.
2010-09-23 15:53:30 +01:00
Robert Bragg
779c780500 docs: update the overview paragraph for Cogl
Instead of describing OpenGL as "a low level OpenGL abstraction
library" it is now summarised as "modern 3D graphics API".
2010-09-23 15:53:30 +01:00
Robert Bragg
2bc739ab44 docs: cogl-texture-3d wasn't listed as experimental
The CoglTexture3D API is only available when defining
COGL_ENABLE_EXPERIMENTAL_API so it should be listed in the experimental
section of the API reference.
2010-09-23 15:53:30 +01:00
Robert Bragg
a89b8f4304 docs: Use "Cogl" not "COGL" in Cogl API reference
Cogl isn't an acronym so we should use "Cogl" instead of "COGL" in
our documentation.
2010-09-23 15:53:29 +01:00
Emmanuele Bassi
462d4c832a docs: Mention Uncrustify in the coding style document 2010-09-23 13:36:56 +01:00
Emmanuele Bassi
acc7d48e47 docs: Update the coding style
Make sure to document:

  • nested if
  • conditions
  • interface definition
2010-09-22 14:22:23 +01:00
Emmanuele Bassi
4037f76a3e build: Update the remote publish path for the cookbook 2010-09-21 12:02:41 +01:00
Emmanuele Bassi
699e8bbed2 Merge branch 'cookbook-layouts-bind-constraint'
* cookbook-layouts-bind-constraint:
  cookbook: Add recipe about sync'ing actor sizes
  cookbook: Example using allocation-changed to sync actor size
  cookbook: Simple example to demonstrate bind constraint
  cookbook: Example of using a bind constraint for an overlay
2010-09-20 14:33:26 +01:00
Emmanuele Bassi
ce174654bf docs: API reference fixes 2010-09-20 13:15:44 +01:00
Elliot Smith
e92b186719 cookbook: Add recipe about sync'ing actor sizes
The recipe covers how to use ClutterBindConstraint
to bind actor sizes together.

It gives some examples of where this approach is appropriate,
as well as explaining an alternative using allocation-changed
or notify::* signals.

Three examples are given:

1. Resizing a texture to the stage.
2. Resizing a rectangle to act as a transparent overlay on
top of a texture (using constraints).
3. Resizing a rectangle to act as a transparent overlay on
top of a texture, but with a size proportional to the texture
(using a handler connected to allocation-changed signals
emitted by the texture).
2010-09-17 15:58:48 +01:00
Elliot Smith
c3cbf1533f cookbook: Example using allocation-changed to sync actor size
An alternative method (not using constraints) to bind
one actor's size and position to another. Used as
an example in the recipe about resizing one actor in
sync with a source actor.
2010-09-17 15:58:48 +01:00
Elliot Smith
8a149521ce cookbook: Simple example to demonstrate bind constraint
A simple example showing how to scale an actor to the stage.

Demonstrates ClutterBindConstraint and ClutterAlignConstraint
in a fashion suitable for a short recipe.
2010-09-17 15:58:48 +01:00
Elliot Smith
a0f63a3153 cookbook: Example of using a bind constraint for an overlay
Example code which loads an image into a texture, and resizes
the image in response to +/- key presses. The overlay is
a transparent rectangle which is bound to the height and
width of the texture; on clicking the texture, the overlay
is made visible by increasing its opacity.

This demonstrates how to use constraints to simplify code
for resizing an actor which is "dependent" on another actor.
2010-09-17 15:58:48 +01:00
Robert Bragg
ff4c24f0a4 geometry: Adds a clutter_geometry_intersects API
This adds a public function named clutter_geometry_intersects which
determines if two geometries intersect or not returning TRUE if so else
FALSE.
2010-09-13 18:18:34 +01:00
Robert Bragg
f5f066df9c Try to clean up how we handle actor transformations
When building actor relative transforms, instead of using the matrix
stack to combine transformations and making assumptions about what is
currently on the stack we now just explicitly initialize an identity
matrix and apply transforms to that.

This removes the full_vertex_t typedef for internal transformation code
and we just use ClutterVertex.

ClutterStage now implements apply_transform like any other actor now
and the code we had in _cogl_setup_viewport has been moved to the
stage's apply_transform instead.

ClutterStage now tracks an explicit projection matrix and viewport
geometry. The projection matrix is derived from the perspective whenever
that changes, and the viewport is updated when the stage gets a new
allocation. The SYNC_MATRICES mechanism has been removed in favour of
_clutter_stage_dirty_viewport/projection() APIs that get used when
switching between multiple stages to ensure cogl has the latest
information about the onscreen framebuffer.
2010-09-13 18:18:34 +01:00
Elliot Smith
e8e360eaa7 cookbook: Added a recipe for reusing a complex animation
This recipe explains how to "reuse" the same animation
definition for different actors, by creating a new
instance of a "rig" (empty container) and animation
for the rig each time the animation is required.

An actor is then re-parented to the rig and animated
using it, rather than being animated directly.

JSON is used to define the rig + animator, to make
creating new instances of them simpler. The recipe
also discusses various caveats around using this
approach, rather than directly animating an actor.
2010-09-13 14:31:17 +01:00
Elliot Smith
6548bee56c cookbook: Added id for section in "rotating an actor" recipe
Added an id to a section in the "rotating an actor" recipe,
so that it can be referred to from the "reusing an animation"
recipe.
2010-09-13 12:25:47 +01:00
Elliot Smith
82ab00930b cookbook: Simplified and clarified example code
Modified the "animation reuse" sample code to provide
a simpler example to explain in the recipe.

Also modified variable names to mirror the names used
for the previous "complex animation" example and added
some more comments, to further simplify and support the
recipe.
2010-09-13 12:25:47 +01:00
Elliot Smith
d7a3e35f46 cookbook: Cleaned up the "animations reuse" example
With some help from pippin, moved variable declarations
into more sensible positions within their functions,
changed a function name, and found a better way
to unref a script once its associated actor has
been destroyed.
2010-09-13 12:25:47 +01:00
Elliot Smith
d4190cbf8c cookbook: Refactored reusable animation example
Extracted the animation into its own JSON definition,
then create a new script and get the animation each
time a rectangle is clicked.

Removes the need to reparent onto the background and
copy property values to the rectangle after the animation,
and generally much cleaner.
2010-09-13 12:25:47 +01:00
Elliot Smith
acc28cf60c cookbook: Added example for animation reuse recipe
Added an example showing how to reuse a ClutterAnimator
instance to animate multiple actors at different times
using an animatable rig, combined with reparenting.
2010-09-13 12:25:47 +01:00
Emmanuele Bassi
732eecf5c6 cookbook: Use the new CLUTTER_KEY_* symbol constants
Instead of the deprecated CLUTTER_* ones.
2010-09-10 18:21:45 +01:00
Emmanuele Bassi
f2669df6b5 build: Disable deprecated API when building the cookbook examples
Make sure we always use the latest API.
2010-09-10 18:21:19 +01:00
Emmanuele Bassi
4ee05f8e21 keysyms: Update the macros to CLUTTER_KEY_*
The keysyms defines in clutter-keysyms.h are generated from the X11 key
symbols headers by doing the equivalent of a pass of sed from XK_* to
CLUTTER_*. This might lead to namespace collisions, down the road.
Instead, we should use the CLUTTER_KEY_* namespace.

This commit includes the script, taken from GDK, that parses the X11
key symbols and generates two headers:

  - clutter-keysyms.h: the default included header, with CLUTTER_KEY_*
  - clutter-keysyms-compat.h: the compatibility header, with CLUTTER_*

The compat.h header file is included if CLUTTER_DISABLE_DEPRECATED is
not defined - essentially deprecating all the old key symbols.

This does not change any ABI and, assuming that an application or
library is not compiling with CLUTTER_DISABLE_DEPRECATED, the source
compatibility is still guaranteed.
2010-09-10 17:54:52 +01:00
Emmanuele Bassi
01362effca actor: Add a method for querying key focus
A simple convenience method on Clutter.Actor for checking whether
it has key focus assigned on the Stage to which it belongs.
2010-09-10 11:42:11 +01:00
Emmanuele Bassi
71a4db6135 animation: Allow detaching an animation from an actor
When animating an actor through clutter_actor_animate() and friends we
might want forcibly detach the animation instance from the actor in
order to start a new one - for instance, in response to user
interaction.

Currently, there is no way to do that except in a very convoluted way,
by emitting the ::completed signal and adding a special case in the
signal handlers; this is due to the fact that clutter_actor_animate()
adds more logic than the one added by clutter_animation_set_object(),
so calling set_object(NULL) or unreferencing the animation instance
itself won't be enough.

The right way to approach this is to add a new method to Clutter.Actor
that detaches any eventual Animation currently referencing it.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2051
2010-09-10 11:18:53 +01:00
Emmanuele Bassi
070e239b6d docs: Fix up the Cogl API reference build 2010-09-03 17:15:22 +01:00
Emmanuele Bassi
abef73bb58 Replace cogl_color_set_from_* with cogl_color_init_from_*
The former is not yet "officially" deprecated by the latter, but it's
confusing to have them both in the code base.
2010-09-03 16:58:47 +01:00
Emmanuele Bassi
0e2b0e496e docs: Add annotation glossary to the Cogl API reference
It's the only way to let gtk-doc know that we're using annotations in
the comments.
2010-09-03 16:52:06 +01:00
Emmanuele Bassi
0caef5c8aa docs: Fixes for gtk-doc 2010-09-03 16:12:24 +01:00
Emmanuele Bassi
7fee8cf26a cookbook: Add a short introduction for the Text chapter 2010-09-03 15:44:03 +01:00
Elliot Smith
655c60aaa9 cookbook: Added recipe for complex animation
Uses ClutterAnimator to implement a reasonably complex
animation of a single actor (movement along a path with
simultaneous scaling).

Provides a metaphor for thinking about ClutterAnimator
animations (stage directions) and explains keys and key
frames in some depth. Also compares ClutterAnimator
with other possible approaches to this type of animation
(implicit animations, ClutterState).
2010-09-03 14:31:57 +01:00
Elliot Smith
60ff660d42 cookbook: Added a second example to show "overlapping" transitions
Added another JSON example to show how transitions can
be easily overlapped when using ClutterAnimator (two
sequences of 5 transitions, simultaneous with two
sequences of 1 transition).

Modified the C JSON loader program so it can be used with
this example as well.
2010-09-03 14:19:51 +01:00
Elliot Smith
c0aa72a042 cookbook: Added complex animations example
To support recipe about using ClutterAnimator to create
complex animations.
2010-09-03 14:19:51 +01:00
Damien Lespiau
0a0a59cf7b cex100: Add an API to configure the buffering mode of the GDL plane
GDL planes can be double or triple buffered. Let the user choose between
the two modes befored initalizing Clutter.
2010-09-03 11:13:35 +01:00
Damien Lespiau
01fcd11efd cex100: Add an API to configure the GDL plane to use
Intel CE3100 and CE4100 have several planes (framebuffers) and a
hardware blender to blend the planes togeteher to produce the final
image.

clutter_cex100_set_plane() lets you configure which framebuffer clutter
will use for its rendering.
2010-09-03 11:13:35 +01:00
Emmanuele Bassi
12a5bf2e06 offscreen-effect: Rename create_target to create_buffer
*** This is an API change ***

The create_target() virtual function should return a CoglHandle to a
texture; clutter_offscreen_effect_get_target(), instead, returns a
CoglMaterial to be painted in the implementation of the paint_target()
virtual function.

Instead of equating textures with materials, and confusing the user of
the API, we should mark the difference more prominently.

First of all, we should return a CoglMaterial* (now that we have that
as a public type) in get_target(); having handles all over the place
does not make it easier to distinguish the semantics of the virtual
functions.

Then we should rename create_target() to create_texture(), to make it
clear that what should be returned is a texture that is used as the
backing for the offscreen framebuffer.
2010-09-01 18:05:53 +01:00
Elliot Smith
6c40b10083 cookbook: Added recipe for signal handling in ClutterScript
Added a recipe explaining how to connect signals to handlers
in the JSON definition used by ClutterScript; also shows
how to connect the signals in code once the JSON has been
loaded.

Includes guidelines on writing handlers (i.e. need to use
-export-dynamic and non-static functions) and example
which connects a handler for motion events on a rectangle.
2010-08-31 14:39:47 +01:00
Elliot Smith
a67111a17c cookbook: Added example of connecting signals in ClutterScript
To support recipe about connecting signals in script.
2010-08-31 10:06:08 +01:00
Emmanuele Bassi
b369cb51dc docs: Pass -DCOGL_ENABLE_EXPERIMENTAL_API when scanning 2010-08-28 21:21:08 +01:00
Emmanuele Bassi
be9dd6e7da docs: Split x11-texture-pixmap in its own section 2010-08-28 21:18:12 +01:00
Emmanuele Bassi
a0c700b8d0 docs: Fix up the main index of the Clutter API reference 2010-08-28 21:17:52 +01:00
Elliot Smith
79a4dbb329 cookbook: Use nicknames for enumeration values
GEnum nicknames can be used to set properties in JSON
definitions, so added a callout to the JSON example explaining
this, and showing how to derive the nickname for an enumeration
value.

Modified the example code to use nicknames as well.
2010-08-27 15:29:15 +01:00
Elliot Smith
2c3ca20cdc cookbook: Don't use the default stage
It's not necessary to use the default stage, so
don't encourage this in the JSON example.
2010-08-27 15:13:28 +01:00
Elliot Smith
6db795baf6 cookbook: Mention nick names as possible values for enums
As JSON can make use of nicknames for GEnum properties,
mentioned this in the table mapping C property values
to their JSON equivalents (as the nick name is a much
shorter and cleaner way of setting a property in JSON).
2010-08-27 15:10:17 +01:00
Elliot Smith
b532f95917 cookbook: Added introduction to and recipe on ClutterScript
Wrote an introduction to using ClutterScript with JSON. Focus
is on explaining why you might want to use it, basic principles
of operation (with annotated JSON sample), and how to map
data types from C to JSON.

Written simultaneously with a short recipe (uses the same sample
code) showing how to load a JSON file and retrieve objects
from it in code.
2010-08-27 11:25:40 +01:00
Elliot Smith
7900ac4dc7 cookbook: Added comments to script example
Commented the ClutterScript example so it can be used
inline as part of the recipe, rather than as an
example in the appendix (it's too simple to warrant
a separate appendix).
2010-08-27 11:21:30 +01:00