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127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
#include <stdlib.h>
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#include <gmodule.h>
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#include <clutter/clutter.h>
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static gboolean is_expanded = FALSE;
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static void
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on_rect_transitions_completed (ClutterActor *actor)
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{
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is_expanded = !is_expanded;
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g_print ("Animation complete\n");
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clutter_actor_set_reactive (actor, TRUE);
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}
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static void
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on_clicked (ClutterClickAction *action,
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ClutterActor *actor,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterAnimation *animation;
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gfloat old_x, old_y, new_x, new_y;
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gfloat old_width, old_height, new_width, new_height;
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gdouble new_angle;
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const ClutterColor *new_color;
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guint8 new_opacity;
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clutter_actor_get_position (actor, &old_x, &old_y);
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clutter_actor_get_size (actor, &old_width, &old_height);
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/* determine the final state of the animation depending on
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* the state of the actor
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*/
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if (!is_expanded)
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{
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new_x = old_x - 100;
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new_y = old_y - 100;
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new_width = old_width + 200;
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new_height = old_height + 200;
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new_angle = 360.0;
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new_color = CLUTTER_COLOR_DarkScarletRed;
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new_opacity = 255;
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}
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else
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{
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new_x = old_x + 100;
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new_y = old_y + 100;
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new_width = old_width - 200;
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new_height = old_height - 200;
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new_angle = 0.0;
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new_color = CLUTTER_COLOR_LightOrange;
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new_opacity = 128;
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}
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clutter_actor_save_easing_state (actor);
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clutter_actor_set_easing_mode (actor, CLUTTER_EASE_IN_EXPO);
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clutter_actor_set_easing_duration (actor, 2000);
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clutter_actor_set_position (actor, new_x, new_y);
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clutter_actor_set_size (actor, new_width, new_height);
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clutter_actor_set_background_color (actor, new_color);
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clutter_actor_set_rotation_angle (actor, CLUTTER_Z_AXIS, new_angle);
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clutter_actor_set_reactive (actor, FALSE);
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/* animate the opacity halfway through, with a different pacing */
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clutter_actor_save_easing_state (actor);
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clutter_actor_set_easing_mode (actor, CLUTTER_LINEAR);
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clutter_actor_set_easing_delay (actor, 1000);
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clutter_actor_set_easing_duration (actor, 1000);
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clutter_actor_set_opacity (actor, new_opacity);
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clutter_actor_restore_easing_state (actor);
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clutter_actor_restore_easing_state (actor);
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}
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G_MODULE_EXPORT int
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test_animation_main (int argc, char *argv[])
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{
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ClutterActor *stage, *rect;
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ClutterColor rect_color = { 0x44, 0xdd, 0x44, 0xff };
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ClutterAction *action;
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if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
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return 1;
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stage = clutter_stage_new ();
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clutter_actor_set_background_color (stage, CLUTTER_COLOR_LightSkyBlue);
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clutter_stage_set_title (CLUTTER_STAGE (stage), "Animation");
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g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
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rect = clutter_actor_new ();
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clutter_actor_set_background_color (rect, CLUTTER_COLOR_LightOrange);
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clutter_actor_add_child (stage, rect);
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clutter_actor_set_size (rect, 50, 50);
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clutter_actor_set_pivot_point (rect, .5f, .5f);
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clutter_actor_set_translation (rect, -25, -25, 0);
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clutter_actor_set_position (rect,
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clutter_actor_get_width (stage) / 2,
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clutter_actor_get_height (stage) / 2);
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clutter_actor_set_opacity (rect, 128);
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clutter_actor_set_reactive (rect, TRUE);
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g_signal_connect (rect, "transitions-completed",
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G_CALLBACK (on_rect_transitions_completed),
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NULL);
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action = clutter_click_action_new ();
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g_signal_connect (action, "clicked", G_CALLBACK (on_clicked), NULL);
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clutter_actor_add_action_with_name (rect, "click", action);
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clutter_actor_show (stage);
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clutter_main ();
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return EXIT_SUCCESS;
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}
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G_MODULE_EXPORT const char *
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test_animation_describe (void)
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{
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return "Simple animation demo";
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}
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