297 lines
8.9 KiB
C
297 lines
8.9 KiB
C
#include <string.h>
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#include <clutter/clutter.h>
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#define TYPE_KEY_GROUP (key_group_get_type ())
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#define KEY_GROUP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_KEY_GROUP, KeyGroup))
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#define IS_KEY_GROUP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_KEY_GROUP))
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#define KEY_GROUP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_KEY_GROUP, KeyGroupClass))
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#define IS_KEY_GROUP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_KEY_GROUP))
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typedef struct _KeyGroup KeyGroup;
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typedef struct _KeyGroupClass KeyGroupClass;
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struct _KeyGroup
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{
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ClutterActor parent_instance;
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gint selected_index;
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};
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struct _KeyGroupClass
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{
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ClutterActorClass parent_class;
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void (* activate) (KeyGroup *group,
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ClutterActor *child);
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};
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GType key_group_get_type (void);
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G_DEFINE_TYPE (KeyGroup, key_group, CLUTTER_TYPE_ACTOR)
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enum
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{
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ACTIVATE,
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LAST_SIGNAL
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};
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static guint group_signals[LAST_SIGNAL] = { 0, };
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static gboolean
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key_group_action_move_left (KeyGroup *self,
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const gchar *action_name,
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guint key_val,
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ClutterModifierType modifiers)
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{
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gint n_children;
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g_assert_cmpstr (action_name, ==, "move-left");
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g_assert_cmpint (key_val, ==, CLUTTER_KEY_Left);
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n_children = clutter_actor_get_n_children (CLUTTER_ACTOR (self));
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self->selected_index -= 1;
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if (self->selected_index < 0)
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self->selected_index = n_children - 1;
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return TRUE;
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}
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static gboolean
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key_group_action_move_right (KeyGroup *self,
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const gchar *action_name,
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guint key_val,
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ClutterModifierType modifiers)
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{
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gint n_children;
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g_assert_cmpstr (action_name, ==, "move-right");
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g_assert_cmpint (key_val, ==, CLUTTER_KEY_Right);
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n_children = clutter_actor_get_n_children (CLUTTER_ACTOR (self));
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self->selected_index += 1;
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if (self->selected_index >= n_children)
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self->selected_index = 0;
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return TRUE;
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}
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static gboolean
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key_group_action_activate (KeyGroup *self,
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const gchar *action_name,
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guint key_val,
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ClutterModifierType modifiers)
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{
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ClutterActor *child = NULL;
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g_assert_cmpstr (action_name, ==, "activate");
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g_assert (key_val == CLUTTER_KEY_Return ||
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key_val == CLUTTER_KEY_KP_Enter ||
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key_val == CLUTTER_KEY_ISO_Enter);
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if (self->selected_index == -1)
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return FALSE;
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child = clutter_actor_get_child_at_index (CLUTTER_ACTOR (self), self->selected_index);
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if (child != NULL)
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{
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g_signal_emit (self, group_signals[ACTIVATE], 0, child);
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return TRUE;
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}
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else
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return FALSE;
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}
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static gboolean
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key_group_key_press (ClutterActor *actor,
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ClutterKeyEvent *event)
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{
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ClutterBindingPool *pool;
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gboolean res;
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pool = clutter_binding_pool_find (G_OBJECT_TYPE_NAME (actor));
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g_assert (pool != NULL);
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res = clutter_binding_pool_activate (pool,
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event->keyval,
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event->modifier_state,
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G_OBJECT (actor));
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/* if we activate a key binding, redraw the actor */
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if (res)
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clutter_actor_queue_redraw (actor);
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return res;
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}
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static void
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key_group_paint (ClutterActor *actor)
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{
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KeyGroup *self = KEY_GROUP (actor);
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ClutterActorIter iter;
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ClutterActor *child;
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gint i = 0;
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clutter_actor_iter_init (&iter, actor);
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while (clutter_actor_iter_next (&iter, &child))
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{
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/* paint the selection rectangle */
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if (i == self->selected_index)
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{
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ClutterActorBox box = { 0, };
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clutter_actor_get_allocation_box (child, &box);
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box.x1 -= 2;
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box.y1 -= 2;
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box.x2 += 2;
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box.y2 += 2;
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cogl_set_source_color4ub (255, 255, 0, 224);
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cogl_rectangle (box.x1, box.y1, box.x2, box.y2);
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}
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clutter_actor_paint (child);
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}
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}
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static void
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key_group_class_init (KeyGroupClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
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ClutterBindingPool *binding_pool;
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actor_class->paint = key_group_paint;
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actor_class->key_press_event = key_group_key_press;
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group_signals[ACTIVATE] =
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g_signal_new (g_intern_static_string ("activate"),
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G_OBJECT_CLASS_TYPE (gobject_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (KeyGroupClass, activate),
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NULL, NULL,
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g_cclosure_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1,
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CLUTTER_TYPE_ACTOR);
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binding_pool = clutter_binding_pool_get_for_class (klass);
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clutter_binding_pool_install_action (binding_pool, "move-right",
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CLUTTER_KEY_Right, 0,
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G_CALLBACK (key_group_action_move_right),
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NULL, NULL);
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clutter_binding_pool_install_action (binding_pool, "move-left",
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CLUTTER_KEY_Left, 0,
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G_CALLBACK (key_group_action_move_left),
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NULL, NULL);
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clutter_binding_pool_install_action (binding_pool, "activate",
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CLUTTER_KEY_Return, 0,
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G_CALLBACK (key_group_action_activate),
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NULL, NULL);
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clutter_binding_pool_install_action (binding_pool, "activate",
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CLUTTER_KEY_KP_Enter, 0,
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G_CALLBACK (key_group_action_activate),
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NULL, NULL);
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clutter_binding_pool_install_action (binding_pool, "activate",
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CLUTTER_KEY_ISO_Enter, 0,
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G_CALLBACK (key_group_action_activate),
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NULL, NULL);
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}
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static void
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key_group_init (KeyGroup *self)
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{
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self->selected_index = -1;
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}
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static void
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init_event (ClutterKeyEvent *event)
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{
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event->type = CLUTTER_KEY_PRESS;
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event->time = 0; /* not needed */
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event->flags = CLUTTER_EVENT_FLAG_SYNTHETIC;
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event->stage = NULL; /* not needed */
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event->source = NULL; /* not needed */
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event->modifier_state = 0;
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event->hardware_keycode = 0; /* not needed */
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}
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static void
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send_keyval (KeyGroup *group, int keyval)
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{
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ClutterKeyEvent event;
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init_event (&event);
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event.keyval = keyval;
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event.unicode_value = 0; /* should be ignored for cursor keys etc. */
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clutter_actor_event (CLUTTER_ACTOR (group), (ClutterEvent *) &event, FALSE);
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}
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static void
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on_activate (KeyGroup *key_group,
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ClutterActor *child,
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gpointer data)
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{
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gint _index = GPOINTER_TO_INT (data);
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g_assert_cmpint (key_group->selected_index, ==, _index);
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}
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static void
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binding_pool (void)
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{
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KeyGroup *key_group = g_object_new (TYPE_KEY_GROUP, NULL);
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g_object_ref_sink (key_group);
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clutter_actor_add_child (CLUTTER_ACTOR (key_group),
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g_object_new (CLUTTER_TYPE_ACTOR,
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"width", 50.0,
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"height", 50.0,
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"x", 0.0, "y", 0.0,
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NULL));
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clutter_actor_add_child (CLUTTER_ACTOR (key_group),
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g_object_new (CLUTTER_TYPE_ACTOR,
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"width", 50.0,
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"height", 50.0,
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"x", 75.0, "y", 0.0,
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NULL));
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clutter_actor_add_child (CLUTTER_ACTOR (key_group),
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g_object_new (CLUTTER_TYPE_ACTOR,
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"width", 50.0,
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"height", 50.0,
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"x", 150.0, "y", 0.0,
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NULL));
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g_assert_cmpint (key_group->selected_index, ==, -1);
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send_keyval (key_group, CLUTTER_KEY_Left);
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g_assert_cmpint (key_group->selected_index, ==, 2);
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send_keyval (key_group, CLUTTER_KEY_Left);
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g_assert_cmpint (key_group->selected_index, ==, 1);
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send_keyval (key_group, CLUTTER_KEY_Right);
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g_assert_cmpint (key_group->selected_index, ==, 2);
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send_keyval (key_group, CLUTTER_KEY_Right);
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g_assert_cmpint (key_group->selected_index, ==, 0);
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g_signal_connect (key_group,
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"activate", G_CALLBACK (on_activate),
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GINT_TO_POINTER (0));
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send_keyval (key_group, CLUTTER_KEY_Return);
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clutter_actor_destroy (CLUTTER_ACTOR (key_group));
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}
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CLUTTER_TEST_SUITE (
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CLUTTER_TEST_UNIT ("/binding-pool", binding_pool)
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)
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