47150304cd
* clutter/clutter-actor.c: (clutter_actor_set_property): Add sanity checks for NULL boxed values when setting the rotation center. * tests/interactive/test-animation.c: (on_button_press): Add an example on how to use the rotation properties to animate an actor.
107 lines
3.1 KiB
C
107 lines
3.1 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_animation_complete (ClutterAnimation *animation,
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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 gboolean
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on_button_press (ClutterActor *actor,
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ClutterButtonEvent *event,
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gpointer dummy)
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{
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ClutterAnimation *animation;
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gint old_x, old_y, new_x, new_y;
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guint old_width, old_height, new_width, new_height;
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guint8 old_op, new_op;
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gdouble new_angle;
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ClutterVertex vertex = { 0, };
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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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old_op = clutter_actor_get_opacity (actor);
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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_op = 255;
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new_angle = 360.0;
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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_op = 128;
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new_angle = 0.0;
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}
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vertex.x = CLUTTER_UNITS_FROM_FLOAT ((float) new_width / 2);
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vertex.y = CLUTTER_UNITS_FROM_FLOAT ((float) new_height / 2);
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animation =
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clutter_actor_animate (actor, CLUTTER_EASE_IN, 2000,
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"x", new_x,
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"y", new_y,
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"width", new_width,
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"height", new_height,
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"opacity", new_op,
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"rotation-angle-z", new_angle,
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"fixed::rotation-center-z", &vertex,
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"fixed::reactive", FALSE,
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NULL);
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g_signal_connect (animation,
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"completed", G_CALLBACK (on_animation_complete),
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actor);
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return TRUE;
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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 stage_color = { 0x66, 0x66, 0xdd, 0xff };
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ClutterColor rect_color = { 0x44, 0xdd, 0x44, 0xff };
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clutter_init (&argc, &argv);
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stage = clutter_stage_get_default ();
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
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rect = clutter_rectangle_new_with_color (&rect_color);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
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clutter_actor_set_size (rect, 50, 50);
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clutter_actor_set_anchor_point (rect, 25, 25);
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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, 0x88);
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clutter_actor_set_reactive (rect, TRUE);
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g_signal_connect (rect,
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"button-press-event", G_CALLBACK (on_button_press),
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NULL);
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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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