f1b2f1e8c5
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).
98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
#include <stdlib.h>
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#include <clutter/clutter.h>
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static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
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static const ClutterColor red_color = { 0xff, 0x00, 0x00, 0xff };
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static const ClutterColor green_color = { 0x00, 0xff, 0x00, 0xff };
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static gboolean
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button_pressed_cb (ClutterActor *actor,
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ClutterEvent *event,
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gpointer user_data)
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{
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ClutterState *transitions = CLUTTER_STATE (user_data);
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/* set the state to the one with a name matching the actor's name */
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clutter_state_set_state (transitions, clutter_actor_get_name (actor));
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return TRUE;
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}
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int
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main (int argc,
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char *argv[])
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{
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ClutterActor *stage;
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ClutterActor *red;
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ClutterActor *green;
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ClutterState *transitions;
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clutter_init (&argc, &argv);
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stage = clutter_stage_get_default ();
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clutter_actor_set_size (stage, 650, 500);
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
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g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
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/* actor names choose the next ClutterState to transition to */
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red = clutter_rectangle_new_with_color (&red_color);
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clutter_actor_set_reactive (red, TRUE);
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clutter_actor_set_name (red, "red");
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clutter_actor_set_size (red, 100, 100);
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clutter_actor_set_position (red, 50, 50);
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green = clutter_rectangle_new_with_color (&green_color);
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clutter_actor_set_reactive (green, TRUE);
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clutter_actor_set_name (green, "green");
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clutter_actor_set_size (green, 100, 100);
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clutter_actor_set_position (green, 50, 350);
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transitions = clutter_state_new ();
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clutter_state_set_duration (transitions, NULL, NULL, 250);
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/* state names match actor names */
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clutter_state_set (transitions, NULL, "red",
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red, "x", CLUTTER_EASE_OUT_CUBIC, 200.0,
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red, "y", CLUTTER_EASE_OUT_CUBIC, 50.0,
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red, "scale-x", CLUTTER_EASE_OUT_CUBIC, 4.0,
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red, "scale-y", CLUTTER_EASE_OUT_CUBIC, 4.0,
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green, "x", CLUTTER_EASE_OUT_CUBIC, 50.0,
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green, "y", CLUTTER_EASE_OUT_CUBIC, 350.0,
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green, "scale-x", CLUTTER_EASE_OUT_CUBIC, 1.0,
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green, "scale-y", CLUTTER_EASE_OUT_CUBIC, 1.0,
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NULL);
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clutter_state_set (transitions, NULL, "green",
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green, "x", CLUTTER_EASE_OUT_CUBIC, 200.0,
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green, "y", CLUTTER_EASE_OUT_CUBIC, 50.0,
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green, "scale-x", CLUTTER_EASE_OUT_CUBIC, 4.0,
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green, "scale-y", CLUTTER_EASE_OUT_CUBIC, 4.0,
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red, "x", CLUTTER_EASE_OUT_CUBIC, 50.0,
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red, "y", CLUTTER_EASE_OUT_CUBIC, 50.0,
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red, "scale-x", CLUTTER_EASE_OUT_CUBIC, 1.0,
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red, "scale-y", CLUTTER_EASE_OUT_CUBIC, 1.0,
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NULL);
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g_signal_connect (red,
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"button-press-event",
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G_CALLBACK (button_pressed_cb),
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transitions);
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g_signal_connect (green,
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"button-press-event",
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G_CALLBACK (button_pressed_cb),
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transitions);
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clutter_container_add (CLUTTER_CONTAINER (stage),
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red,
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green,
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NULL);
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clutter_actor_show (stage);
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clutter_main ();
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g_object_unref (transitions);
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return EXIT_SUCCESS;
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}
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