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aece642adb
Make sure users get the idea that clutter_init()
has a return value that needs to be checked.
These were fixed via sed magic:
sed -i -s -e "s/clutter_init (.*)/\
if (& != CLUTTER_INIT_SUCCESS)\n return 1/"\
doc/*/*/*.{c,xml} doc/*/*.xml
http://bugzilla.clutter-project.org/show_bug.cgi?id=2574
85 lines
2.2 KiB
C
85 lines
2.2 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 void
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next_state (ClutterState *transitions,
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gpointer user_data)
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{
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const gchar *state = clutter_state_get_state (transitions);
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if (g_strcmp0 (state, "right") == 0)
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clutter_state_set_state (transitions, "left");
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else
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clutter_state_set_state (transitions, "right");
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}
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static gboolean
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key_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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if (!clutter_timeline_is_playing (clutter_state_get_timeline (transitions)))
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next_state (transitions, NULL);
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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 *actor;
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ClutterState *transitions;
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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_get_default ();
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clutter_actor_set_size (stage, 300, 200);
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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 = clutter_rectangle_new_with_color (&red_color);
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clutter_actor_set_position (actor, 150, 50);
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clutter_actor_set_size (actor, 100, 100);
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transitions = clutter_state_new ();
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clutter_state_set_duration (transitions, NULL, NULL, 1000);
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clutter_state_set (transitions, NULL, "right",
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actor, "x", CLUTTER_LINEAR, 150.0,
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NULL);
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clutter_state_set (transitions, NULL, "left",
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actor, "x", CLUTTER_LINEAR, 50.0,
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NULL);
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clutter_state_warp_to_state (transitions, "right");
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g_signal_connect (stage,
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"key-press-event",
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G_CALLBACK (key_pressed_cb),
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transitions);
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g_signal_connect (transitions,
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"completed",
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G_CALLBACK (next_state),
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NULL);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), actor);
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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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