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[animation] Allow swapped/after signal variants

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Continuing in the tradition on making clutter_actor_animate() the
next g_object_connect(), here's the addition of the signal-after::
and signal-swapped:: modifiers for the automagic signal connection
arguments.

Fixes bug:

  http://bugzilla.openedhand.com/show_bug.cgi?id=1646
This commit is contained in:
Emmanuele Bassi 2009-06-15 11:24:54 +01:00
parent 0415d62d40
commit 612d1cded7
1 changed files with 44 additions and 3 deletions
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47
clutter/clutter-animation.c
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@ -1584,6 +1584,38 @@ clutter_animation_setup_valist (ClutterAnimation *animation,
g_signal_connect (animation, signal_name, callback, userdata);
}
else if (g_str_has_prefix (property_name, "signal-"))
{
GCallback callback = va_arg (var_args, GCallback);
gpointer userdata = va_arg (var_args, gpointer);
const gchar *signal_name;
GConnectFlags flags;
if (g_str_has_prefix (property_name, "signal-after::"))
{
signal_name = property_name + 14;
flags = G_CONNECT_AFTER;
}
else if (g_str_has_prefix (property_name, "signal-swapped::"))
{
signal_name = property_name + 16;
flags = G_CONNECT_SWAPPED;
}
else
{
g_warning ("Unable to connect to '%s': the valid signal "
"modifiers are 'signal-swapped::' and "
"'signal-swapped::'",
property_name);
break;
}
g_signal_connect_data (animation, signal_name,
callback,
userdata,
NULL,
flags);
}
else
{
if (g_str_has_prefix (property_name, "fixed::"))
@ -1805,9 +1837,10 @@ clutter_actor_animate_with_timeline (ClutterActor *actor,
* to control the animation or to know when the animation has been
* completed.
*
* If a name argument starts with "signal::" the two following arguments
* are used as callback function and userdata for a signal handler installed
* on the #ClutterAnimation object for the specified signal name, for
* If a name argument starts with "signal::", "signal-after::" or
* "signal-swapped::" the two following arguments are used as callback
* function and data for a signal handler installed on the
* #ClutterAnimation object for the specified signal name, for
* instance:
*
* |[
@ -1825,6 +1858,14 @@ clutter_actor_animate_with_timeline (ClutterActor *actor,
* NULL);
* ]|
*
* The "signal::" modifier is the equivalent of using g_signal_connect();
* the "signal-after::" modifier is the equivalent of using
* g_signal_connect_after(); the "signal-swapped::" modifier is the equivalent
* of using g_signal_connect_swapped(). The clutter_actor_animate() function
* will not keep track of multiple connections to the same signal, so it is
* your responsability to avoid them when calling clutter_actor_animate()
* multiple times on the same actor.
*
* Calling this function on an actor that is already being animated
* will cause the current animation to change with the new final values,
* the new easing mode and the new duration - that is, this code: