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examples/actor-model: Add activate transition

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Show a simple transition when the current menu item is activated.
This commit is contained in:
Emmanuele Bassi 2015-07-10 10:42:27 +01:00
parent bf0ca91662
commit eda436f0c4
1 changed files with 68 additions and 1 deletions
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69
examples/actor-model.c
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@ -114,7 +114,7 @@ example_menu_item_model_init (ExampleMenuItemModel *self)
}
/* }}} */
/* {{{ MenuItem */
/* {{{ MenuItemView */
/* This is our "view" of a Menu item; it changes state depending on whether
* the "selected" property is set. The "view" reflects the state of the
@ -209,17 +209,66 @@ example_menu_item_view_class_init (ExampleMenuItemViewClass *klass)
g_object_class_install_properties (gobject_class, MENU_ITEM_VIEW_N_PROPS, menu_item_view_props);
}
static void
example_menu_item_view__transition_stopped (ClutterActor *actor,
const char *transition,
gboolean is_finished)
{
clutter_actor_set_scale (actor, 1.0, 1.0);
clutter_actor_set_opacity (actor, 255);
}
static void
example_menu_item_view_init (ExampleMenuItemView *self)
{
ClutterText *text = CLUTTER_TEXT (self);
ClutterActor *actor = CLUTTER_ACTOR (self);
ClutterTransition *scalex_trans, *scaley_trans, *fade_trans;
ClutterTransition *group;
clutter_text_set_font_name (text, "Sans Bold 24px");
clutter_text_set_color (text, CLUTTER_COLOR_White);
clutter_actor_set_margin_left (actor, 12);
clutter_actor_set_margin_right (actor, 12);
clutter_actor_set_pivot_point (actor, 0.5, 0.5);
scalex_trans = clutter_property_transition_new ("scale-x");
clutter_transition_set_from (scalex_trans, G_TYPE_FLOAT, 1.0);
clutter_transition_set_to (scalex_trans, G_TYPE_FLOAT, 3.0);
scaley_trans = clutter_property_transition_new ("scale-y");
clutter_transition_set_from (scaley_trans, G_TYPE_FLOAT, 1.0);
clutter_transition_set_to (scaley_trans, G_TYPE_FLOAT, 3.0);
fade_trans = clutter_property_transition_new ("opacity");
clutter_transition_set_to (fade_trans, G_TYPE_UINT, 0);
group = clutter_transition_group_new ();
clutter_transition_group_add_transition (CLUTTER_TRANSITION_GROUP (group), scalex_trans);
clutter_transition_group_add_transition (CLUTTER_TRANSITION_GROUP (group), scaley_trans);
clutter_transition_group_add_transition (CLUTTER_TRANSITION_GROUP (group), fade_trans);
clutter_timeline_set_duration (CLUTTER_TIMELINE (group), 250);
clutter_timeline_set_progress_mode (CLUTTER_TIMELINE (group), CLUTTER_EASE_OUT);
clutter_actor_add_transition (actor, "activateTransition", group);
g_object_unref (group);
clutter_timeline_stop (CLUTTER_TIMELINE (group));
g_signal_connect (actor, "transition-stopped",
G_CALLBACK (example_menu_item_view__transition_stopped),
group);
}
static void
example_menu_item_view_activate (ExampleMenuItemView *self)
{
ClutterTransition *t;
t = clutter_actor_get_transition (CLUTTER_ACTOR (self), "activateTransition");
clutter_timeline_start (CLUTTER_TIMELINE (t));
}
/* }}} */
@ -310,6 +359,19 @@ example_menu_select_prev (ExampleMenu *self)
return example_menu_select_item (self, self->current_idx - 1);
}
static void
example_menu_activate_item (ExampleMenu *self)
{
ClutterActor *child;
child = clutter_actor_get_child_at_index (CLUTTER_ACTOR (self),
self->current_idx);
if (child == NULL)
return;
example_menu_item_view_activate ((ExampleMenuItemView *) child);
}
/* }}} */
/* {{{ main */
@ -338,6 +400,11 @@ on_key_press (ClutterActor *stage,
item = example_menu_select_next ((ExampleMenu *) menu);
clutter_actor_get_position (item, &p.x, &p.y);
break;
case CLUTTER_KEY_Return:
case CLUTTER_KEY_KP_Enter:
example_menu_activate_item ((ExampleMenu *) menu);
break;
}
if (item != NULL)