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cookbook: Example of simple movement animation

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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.
This commit is contained in:
Elliot Smith 2010-09-21 17:44:00 +01:00
parent 884ead03e1
commit 5bca30300e
2 changed files with 95 additions and 0 deletions
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2
doc/cookbook/examples/Makefile.am
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@ -4,6 +4,7 @@ NULL =
noinst_PROGRAMS = \
animations-complex \
animations-moving-implicit \
animations-reuse \
animations-rotating \
text-shadow \
@ -49,6 +50,7 @@ AM_CFLAGS = \
AM_LDFLAGS = $(CLUTTER_LIBS) -export-dynamic
animations_complex_SOURCES = animations-complex.c
animations_moving_implicit_SOURCES = animations-moving-implicit.c
animations_reuse_SOURCES = animations-reuse.c
animations_rotating_SOURCES = animations-rotating.c
text_shadow_SOURCES = text-shadow.c

93
doc/cookbook/examples/animations-moving-implicit.c Normal file
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@ -0,0 +1,93 @@
#include <stdlib.h>
#include <clutter/clutter.h>
typedef struct
{
gchar *axis;
gfloat target;
} AnimationSpec;
static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
static const ClutterColor red = { 0xff, 0x00, 0x00, 0xff };
static const ClutterColor green = { 0x00, 0xff, 0x00, 0xff };
static const ClutterColor blue = { 0x00, 0x00, 0xff, 0xff };
static gboolean
button_pressed_cb (ClutterActor *actor,
ClutterEvent *event,
gpointer user_data)
{
if (clutter_actor_get_animation (actor) != NULL)
return TRUE;
AnimationSpec *animation_spec = (AnimationSpec *) user_data;
clutter_actor_animate (actor, CLUTTER_LINEAR, 500,
animation_spec->axis, animation_spec->target,
NULL);
return TRUE;
}
int
main (int argc,
char *argv[])
{
ClutterActor *stage;
ClutterActor *rectangle1;
ClutterActor *rectangle2;
ClutterActor *rectangle3;
AnimationSpec x_move = { "x", 50.0 };
AnimationSpec y_move = { "y", 400.0 };
AnimationSpec z_move = { "depth", -1000.0 };
clutter_init (&argc, &argv);
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 500, 500);
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
rectangle1 = clutter_rectangle_new_with_color (&red);
clutter_actor_set_reactive (rectangle1, TRUE);
clutter_actor_set_size (rectangle1, 50, 50);
clutter_actor_set_position (rectangle1, 400, 400);
rectangle2 = clutter_rectangle_new_with_color (&green);
clutter_actor_set_reactive (rectangle2, TRUE);
clutter_actor_set_size (rectangle2, 50, 50);
clutter_actor_set_position (rectangle2, 50, 50);
rectangle3 = clutter_rectangle_new_with_color (&blue);
clutter_actor_set_reactive (rectangle3, TRUE);
clutter_actor_set_size (rectangle3, 50, 50);
clutter_actor_set_position (rectangle3, 225, 225);
g_signal_connect (rectangle1,
"button-press-event",
G_CALLBACK (button_pressed_cb),
&x_move);
g_signal_connect (rectangle2,
"button-press-event",
G_CALLBACK (button_pressed_cb),
&y_move);
g_signal_connect (rectangle3,
"button-press-event",
G_CALLBACK (button_pressed_cb),
&z_move);
clutter_container_add (CLUTTER_CONTAINER (stage),
rectangle1,
rectangle2,
rectangle3,
NULL);
clutter_actor_show (stage);
clutter_main ();
return EXIT_SUCCESS;
}