mirror of
https://github.com/brl/mutter.git
synced 2024-11-24 09:00:42 -05:00
26aa4b5290
A lot of the example code in the cookbook and the API reference still uses the default stage — sometimes as if it were a non-default one, which once again demonstrates how the default stage was a flawed concept that just confused people.
138 lines
5.0 KiB
C
138 lines
5.0 KiB
C
#include <clutter/clutter.h>
|
|
|
|
#define ROTATION_ANGLE 75.0
|
|
#define DURATION 2000
|
|
|
|
static void
|
|
_set_next_state (ClutterState *transitions,
|
|
gpointer user_data)
|
|
{
|
|
const gchar *current = clutter_state_get_state (transitions);
|
|
gchar *next_state = "start";
|
|
|
|
if (g_strcmp0 (current, "start") == 0)
|
|
next_state = "x-cw";
|
|
else if (g_strcmp0 (current, "x-cw") == 0)
|
|
next_state = "x-ccw";
|
|
else if (g_strcmp0 (current, "x-ccw") == 0)
|
|
next_state = "x-after";
|
|
else if (g_strcmp0 (current, "x-after") == 0)
|
|
next_state = "y-cw";
|
|
else if (g_strcmp0 (current, "y-cw") == 0)
|
|
next_state = "y-ccw";
|
|
else if (g_strcmp0 (current, "y-ccw") == 0)
|
|
next_state = "y-after";
|
|
else if (g_strcmp0 (current, "y-after") == 0)
|
|
next_state = "z-cw";
|
|
else if (g_strcmp0 (current, "z-cw") == 0)
|
|
next_state = "z-ccw";
|
|
|
|
clutter_state_set_state (transitions, next_state);
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
ClutterActor *stage;
|
|
ClutterActor *texture;
|
|
ClutterState *transitions;
|
|
GError *error = NULL;
|
|
gfloat texture_width, texture_height;
|
|
|
|
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
|
|
return 1;
|
|
|
|
stage = clutter_stage_new ();
|
|
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
|
|
|
|
texture = clutter_texture_new ();
|
|
clutter_actor_add_constraint (texture,
|
|
clutter_align_constraint_new (stage, CLUTTER_ALIGN_X_AXIS, 0.5));
|
|
clutter_actor_add_constraint (texture,
|
|
clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
|
|
clutter_texture_set_sync_size (CLUTTER_TEXTURE (texture), TRUE);
|
|
clutter_texture_set_from_file (CLUTTER_TEXTURE (texture),
|
|
TESTS_DATA_DIR "/redhand.png",
|
|
&error);
|
|
|
|
if (error != NULL)
|
|
{
|
|
g_error ("Problem loading image into texture - %s", error->message);
|
|
g_error_free (error);
|
|
return 1;
|
|
}
|
|
|
|
clutter_actor_get_size (texture, &texture_width, &texture_height);
|
|
clutter_actor_set_size (stage, texture_width * 2, texture_height * 2);
|
|
|
|
/* set all centres of rotation to the centre of the texture */
|
|
clutter_actor_set_rotation (texture,
|
|
CLUTTER_X_AXIS,
|
|
0.0,
|
|
texture_width * 0.5,
|
|
texture_height * 0.5,
|
|
0.0);
|
|
clutter_actor_set_rotation (texture,
|
|
CLUTTER_Y_AXIS,
|
|
0.0,
|
|
texture_width * 0.5,
|
|
texture_height * 0.5,
|
|
0.0);
|
|
clutter_actor_set_z_rotation_from_gravity (texture, 0.0, CLUTTER_GRAVITY_CENTER);
|
|
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (stage), texture);
|
|
|
|
/* set up the animations */
|
|
transitions = clutter_state_new ();
|
|
|
|
clutter_state_set (transitions, NULL, "start",
|
|
texture, "rotation-angle-x", CLUTTER_LINEAR, 0.0,
|
|
texture, "rotation-angle-y", CLUTTER_LINEAR, 0.0,
|
|
texture, "rotation-angle-z", CLUTTER_LINEAR, 0.0,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "x-cw",
|
|
texture, "rotation-angle-x", CLUTTER_LINEAR, ROTATION_ANGLE,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "x-ccw",
|
|
texture, "rotation-angle-x", CLUTTER_LINEAR, -ROTATION_ANGLE,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "x-after",
|
|
texture, "rotation-angle-x", CLUTTER_LINEAR, 0.0,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "y-cw",
|
|
texture, "rotation-angle-y", CLUTTER_LINEAR, ROTATION_ANGLE,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "y-ccw",
|
|
texture, "rotation-angle-y", CLUTTER_LINEAR, -ROTATION_ANGLE,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "y-after",
|
|
texture, "rotation-angle-y", CLUTTER_LINEAR, 0.0,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "z-cw",
|
|
texture, "rotation-angle-z", CLUTTER_LINEAR, ROTATION_ANGLE,
|
|
NULL);
|
|
clutter_state_set (transitions, NULL, "z-ccw",
|
|
texture, "rotation-angle-z", CLUTTER_LINEAR, -ROTATION_ANGLE,
|
|
NULL);
|
|
clutter_state_set_duration (transitions, NULL, NULL, DURATION);
|
|
clutter_state_set_duration (transitions, "start", NULL, DURATION * 0.5);
|
|
clutter_state_set_duration (transitions, NULL, "start", DURATION * 0.5);
|
|
clutter_state_set_duration (transitions, NULL, "x-after", DURATION * 0.5);
|
|
clutter_state_set_duration (transitions, NULL, "y-after", DURATION * 0.5);
|
|
|
|
clutter_state_warp_to_state (transitions, "start");
|
|
|
|
g_signal_connect (transitions,
|
|
"completed",
|
|
G_CALLBACK (_set_next_state),
|
|
NULL);
|
|
|
|
clutter_state_set_state (transitions, "x-cw");
|
|
|
|
clutter_actor_show (stage);
|
|
|
|
clutter_main ();
|
|
|
|
return 0;
|
|
}
|